PIMCO FUNDS MULTI MANAGER SERIES
485APOS, 1999-02-01
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<PAGE>
 
   As filed with the Securities and Exchange Commission on January 29, 1999

                                                     Registration Nos. 33-36528;
                                                                        811-6161


                       SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549


                                   FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933                  / X /
                                                                          --- 
    Pre-Effective Amendment No. ___                                      /   /
                                                                          --- 
    Post-Effective Amendment No. 37                                      / X /
                                                                          --- 

REGISTRATION STATEMENT UNDER THE INVESTMENT   
        COMPANY ACT OF 1940                                              / X /
                                                                          --- 
                
    Amendment No.  39                                                    / X /
                                                                          --- 

                       PIMCO FUNDS: MULTI-MANAGER SERIES
              (Exact Name of Registrant as Specified in Charter)

               840 Newport Center Drive, Newport Beach, CA 92660
              (Address of principal executive offices) (Zip code)

                                (714) 760-4867
             (Registrant's telephone number, including area code)
 

Name and address
of agent for service:        Copies to:
- ---------------------        ---------- 
Stephen J. Treadway          Newton B. Schott, Jr.,    Joseph B. Kittredge, Esq.
c/o PIMCO Funds              Esq.                      Ropes & Gray          
Distributors LLC             c/o PIMCO Funds           One International Place 
2187 Atlantic Street         Distributors LLC          Boston, Massachusetts    
Stamford, Connecticut        2187 Atlantic Street      02110   
 06902                       Stamford, Connecticut     
                             06902                                              
                             
                                                                             
It is proposed that this filing will become effective (check appropriate box):

/   /  Immediately upon filing pursuant to paragraph (b)
 --- 
                
/   /  On [date] pursuant to paragraph (b)      
 ---                                             
        
/   /  60 days after filing pursuant to paragraph (a)(1)
 --- 
    
/ X /  On April 3, 1999 pursuant to paragraph (a)(1)     
 --- 

/   /  75 days after filing pursuant to paragraph (a)(2)     
 --- 
/   /  On [date] pursuant to paragraph (a)(2) of rule 485
 ---                                                     

If appropriate, check the following box:
        
/   /  This post-effective amendment designates a new effective date for a
 ---   previously filed post-effective amendment.                              
<PAGE>
 
                      PIMCO FUNDS:  MULTI-MANAGER SERIES

                             CROSS-REFERENCE SHEET

             Required by Rule 404 Under the Securities Act of 1933


     Prospectus for the Class D Shares of PIMCO Equity Income Fund, PIMCO Value
Fund, PIMCO Capital Appreciation Fund, PIMCO Mid-Cap Growth Fund, PIMCO
Renaissance Fund, PIMCO Innovation Fund, and PIMCO Tax-Efficient Equity Fund.

                                     Part A
                                     ------
    Item                                  Heading
    ----                                  -------
1.  Cover Page                            Cover Page

2.  Synopsis                              Prospectus Summary; Schedule of Fees
                                                
3.  Condensed Financial Information       Financial Highlights      

4.  General Description of Registrant     Investment Objectives and Policies;
                                          Characteristics and Risks of
                                          Securities and Investment Techniques;
                                          Description of the Trust

5.  Management of the Fund                Management of the Trust; Back Cover

5A. Management's Discussion of Fund       Not Applicable
    Performance

6.  Capital Stock and Other Securities    Description of the Trust;
                                          Distributions; Taxes; Back Cover

7.  Purchase of Securities Being Offered  How to Buy Shares; General; How Net
                                          Asset Value is Determined;
                                          Distributor 

8.  Redemption or Repurchase              How to Redeem

9.  Pending Legal Proceedings             Not Applicable
 
<PAGE>
 
                      PIMCO FUNDS:  MULTI-MANAGER SERIES

                             CROSS-REFERENCE SHEET

             Required by Rule 404 Under the Securities Act of 1933
        
     Prospectus for the Class A, Class B, and Class C Shares of PIMCO Equity
Income Fund, PIMCO Value Fund, PIMCO Small-Cap Value Fund, PIMCO Capital
Appreciation Fund, PIMCO Mid-Cap Growth Fund, PIMCO Renaissance Fund, PIMCO
Growth Fund, PIMCO Target Fund, PIMCO Opportunity Fund, PIMCO Innovation Fund,
PIMCO International Fund, PIMCO Balanced Fund, PIMCO Precious Metals Fund, PIMCO
Value 25 Fund and PIMCO Tax-Efficient Equity Fund.    

                                    Part A
                                    ------
 
    Item                                  Heading
    ----                                  -------
1.  Cover Page                            Cover Page
                                      
2.  Synopsis                              Prospectus Summary; Schedule of Fees
                                      
3.  Condensed Financial Information       Financial Highlights; Performance
                                          Information
                                      
4.  General Description of Registrant     Investment Objectives and Policies;
                                          Characteristics and Risks of
                                          Securities and Investment Techniques;
                                          Description of the Trust
                                      
5.  Management of the Fund                Management of the Trust; Back Cover
                                      
5A. Management's Discussion of Fund       Not Applicable
    Performance

6.  Capital Stock and Other Securities    Description of the Trust;
                                          Distributions; Taxes; Back Cover

7.  Purchase of Securities Being Offered  How to Buy Shares; General; How Net
                                          Asset Value is Determined;
                                          Alternative Purchase Arrangements;
                                          Distributor and Distribution and
                                          Servicing Plans
 
8.  Redemption or Repurchase              How to Redeem

9.  Pending Legal Proceedings             Not Applicable
 
<PAGE>
 
                       PIMCO FUNDS:  MULTI-MANAGER SERIES

                             CROSS-REFERENCE SHEET

             Required by Rule 404 Under the Securities Act of 1933
     
     Prospectus for the Institutional Class and Administrative Class Shares of
PIMCO Equity Income Fund, PIMCO Value Fund, PIMCO Small-Cap Value Fund, PIMCO
Capital Appreciation Fund, PIMCO Mid-Cap Growth Fund, PIMCO Small-Cap Growth
Fund, PIMCO Micro-Cap Growth Fund, PIMCO Renaissance Fund, PIMCO Core Equity
Fund, PIMCO Mid-Cap Equity Fund, PIMCO Innovation Fund, PIMCO Enhanced Equity
Fund, PIMCO Structured Emerging Markets Fund, PIMCO Tax-Efficient Structured
Emerging Markets Fund, PIMCO Emerging Markets Fund, PIMCO International
Developed Fund, PIMCO International Fund, PIMCO International Growth Fund, PIMCO
Balanced Fund, PIMCO Value 25 Fund, PIMCO Tax-Efficient Equity Fund, PIMCO 
Growth Fund, PIMCO Target Fund and PIMCO Opportunity Fund.     

                                     Part A
                                     ------
    Item                                  Heading
    ----                                  -------
1.  Cover Page                            Cover Page

2.  Synopsis                              Prospectus Summary; Expense
                                          Information

3.  Condensed Financial Information       Financial Highlights

4.  General Description of Registrant     Investment Objectives and Policies;
                                          Investment Restrictions;
                                          Characteristics and Risks of
                                          Securities and Investment Techniques

5.  Management of the Fund                Management of the Trust; Portfolio
                                          Transactions

5A. Management's Discussion of Fund       Not Applicable
    Performance

6.  Capital Stock and Other Securities    Other Information; Portfolio
                                          Transactions; Dividends,
                                          Distributions and Taxes

7.  Purchase of Securities Being Offered  Management of the Trust; Purchase of
                                          Shares; Net Asset Value

8.  Redemption or Repurchase              Redemption of Shares

9.  Pending Legal Proceedings             Not Applicable
 

                                      -3-
<PAGE>
 
                       PIMCO FUNDS:  MULTI-MANAGER SERIES

                             CROSS-REFERENCE SHEET

             Required by Rule 404 Under the Securities Act of 1933
    
     Prospectus for the Institutional Class and Administrative Class Shares of
PIMCO Funds Asset Allocation Series - 90/10 Portfolio, PIMCO Funds Asset
Allocation Series - 60/40 Portfolio, and PIMCO Funds Asset Allocation Series -
30/70 Portfolio.    

                                     Part A
                                     ------

    Item                                  Heading
    ----                                  -------
1.  Cover Page                            Cover Page

2.  Synopsis                              Prospectus Summary; Expense
                                          Information

3.  Condensed Financial Information       Not Applicable

4.  General Description of Registrant     Investment Objectives and Policies;
                                          Characteristics and Risks of
                                          Securities and Investment Techniques

5.  Management of the Fund                Management of the Portfolios   
                                          

5A. Management's Discussion of Fund       Not Applicable
    Performance

6.  Capital Stock and Other Securities    Other Information; Portfolio
                                          Transactions; Dividends,
                                          Distributions and Taxes

7.  Purchase of Securities Being Offered  Management of the Trust; Purchase of
                                          Shares; Net Asset Value

8.  Redemption or Repurchase              Redemption of Shares

9.  Pending Legal Proceedings             Not Applicable
 

                                      -3-
<PAGE>
 
                      PIMCO FUNDS:  MULTI-MANAGER SERIES

                             CROSS-REFERENCE SHEET

             Required by Rule 404 Under the Securities Act of 1933

     Prospectus for Class A, Class B, and Class C Shares of PIMCO Funds Asset 
Allocation Series - 90/10 Portfolio, PIMCO Funds Asset Allocation Series - 60/40
Portfolio, and PIMCO Funds Asset Allocation Series - 30/70 Portfolio.  




                                    Part A
                                    ------
 
    Item                                  Heading
    ----                                  -------
1.  Cover Page                            Cover Page

2.  Synopsis                              PIMCO Funds Asset Allocation Series - 
                                          Overview; Schedule of Fees
                                      
3.  Condensed Financial Information       Not Applicable
                                          
                                      
4.  General Description of Registrant     Investment Objectives and Policies;
                                          Underlying Funds; Description of the 
                                          Trust
                                      
5.  Management of the Fund                Management of the Portfolios;
                                          Back Cover
                                      
5A. Management's Discussion of Fund       Not Applicable
    Performance

6.  Capital Stock and Other Securities    Description of the Trust;
                                          Distributions; Taxes; Back Cover

7.  Purchase of Securities Being Offered  How to Buy Shares; How Net
                                          Asset Value is Determined;
                                          Alternative Purchase Arrangements;
                                          Distributor and Distribution and
                                          Servicing Plans   
 
8.  Redemption or Repurchase              How to Redeem

9.  Pending Legal Proceedings             Not Applicable
 
<PAGE>
 
                       PIMCO FUNDS:  MULTI-MANAGER SERIES

                             CROSS-REFERENCE SHEET

             Required by Rule 404 Under the Securities Act of 1933

    
     Statement of Additional Information for PIMCO Equity Income Fund, PIMCO
Value Fund, PIMCO Small-Cap Value Fund, PIMCO Capital Appreciation Fund, PIMCO
Mid-Cap Growth Fund, PIMCO Small-Cap Growth Fund, PIMCO Micro-Cap Growth Fund,
PIMCO Renaissance Fund, PIMCO Growth Fund, PIMCO Core Equity Fund, PIMCO Target
Fund, PIMCO Mid-Cap Equity Fund, PIMCO Opportunity Fund, PIMCO Innovation Fund,
PIMCO Enhanced Equity Fund, PIMCO Structured Emerging Markets Fund, PIMCO Tax-
Efficient Structured Emerging Markets Fund, PIMCO Emerging Markets Fund, PIMCO
International Developed Fund, PIMCO International Fund, PIMCO International
Growth Fund, PIMCO Balanced Fund, PIMCO Precious Metals Fund, PIMCO Value 25
Fund, PIMCO Tax-Efficient Equity Fund, PIMCO Funds Asset Allocation Series - 
90/10 Portfolio, PIMCO Funds Asset Allocation Series - 60/40 Portfolio, and
PIMCO Funds Asset Allocation Series - 30/70 Portfolio.    

                                    Part B
                                    ------
 
     Item                                  Heading
     ----                                  -------

10.  Cover Page                            Cover Page

11.  Table of Contents                     Table of Contents

12   General Information and History       Cover Page

13.  Investment Objective and Policies     Investment Objectives and Policies;
                                           Investment Restrictions

14.  Management of the Fund                Management of the Trust

15.  Control Persons and Principal         Other Information
     Holders of Securities                 

16.  Investment Advisory and Other         Management of the Trust; Distribution
     Services                              of Trust Shares

17.  Brokerage Allocation and Other        Portfolio Transactions and Brokerage
     Practices                             

18.  Capital Stock and Other Securities    Other Information

19.  Purchase, Redemption and Pricing      Distribution of Trust Shares; Net
     of Securities Being Offered           Asset Value

20.  Tax Status                            Taxation

21.  Underwriters                          Distribution of Trust Shares
                                           
22.  Calculation of Performance Data       Other Information

23.  Financial Statements                  Financial Statements


                                      -4-
<PAGE>
 

PIMCO Funds Prospectus

    
Multi-Manager
Series                   BLEND STOCK FUNDS
                         Capital Appreciation Fund
April __, 1998           Mid-Cap Growth Fund  

Share Class              VALUE STOCK FUNDS
                         Equity Income Fund
D                        Renaissance Fund
                         Value Fund

                         ENHANCED INDEX STOCK FUNDS 
                         Tax-Efficient Equity Fund

                         SECTOR STOCK FUNDS 
                         Innovation Fund       



                                                                          PIMCO
                                                                          -----
                                                                          FUNDS

<PAGE>
 
            PIMCO Funds: Multi-Manager Series
            Prospectus
               
            April   , 1999     
 
            PIMCO Funds: Multi-Manager Series (the "Trust") is an open-end se-
            ries management investment company offering seven separate diver-
            sified investment portfolios (each a "Fund") in this Prospectus,
            each with different investment objectives and strategies. The ad-
            dress of PIMCO Funds: Multi-Manager Series is 840 Newport Center
            Drive, Suite 300, Newport Beach, CA 92660.
 
            Each Fund offers Class D shares in this Prospectus. Through sepa-
            rate prospectuses, certain Funds and other series of the Trust of-
            fer up to five additional classes of shares, Class A, Class B,
            Class C, Institutional Class and Administrative Class shares. See
            "Description of the Trust--Multiple Classes of Shares."
 
            This Prospectus concisely describes the information investors
            should know before investing in Class D shares of the Funds.
            Please read this Prospectus carefully and keep it for further ref-
            erence. Information about the investment objective of each Fund,
            along with a detailed description of the types of securities in
            which each Fund may invest, and of investment policies and re-
            strictions applicable to each Fund, are set forth in this Prospec-
            tus. There can be no assurance that the investment objective of
            any Fund will be achieved. Because the market value of each Fund's
            investments will change, the investment returns and net asset
            value per share of each Fund will vary.
 
            Class D shares are offered only through financial service firms,
            such as broker-dealers or registered investment advisers, with
            which the Funds' distributor has an agreement for the use of the
            Funds in particular investment products, programs or accounts for
            which a fee may be charged. See "How to Buy Shares." If you wish
            to purchase shares directly from the Trust or the Funds' distribu-
            tor, please consider one of the other classes of shares. See "De-
            scription of the Trust--Multiple Classes of Shares."
               
            A Statement of Additional Information, dated April   , 1999, as
            amended or supplemented from time to time, is available free of
            charge by writing to PIMCO Funds Distributors LLC (the "Distribu-
            tor"), 2187 Atlantic Street, Stamford, Connecticut 06902, or by
            telephoning 1-888-87-PIMCO. The Statement of Additional Informa-
            tion, which contains more detailed information about the Trust,
            has been filed with the Securities and Exchange Commission and is
            incorporated by reference in this Prospectus. The Securities and
            Exchange Commission maintains an Internet World Wide Web site (at
            www.sec.gov) which contains the Statement of Additional Informa-
            tion, materials that are incorporated by reference into this Pro-
            spectus and the Statement of Additional Information, and other in-
            formation about the Funds.     
 
            These securities have not been approved or disapproved by the Se-
            curities and Exchange Commission or any state securities commis-
            sion, nor has the Securities and Exchange Commission or any state
            securities commission passed upon the accuracy or adequacy of this
            Prospectus. Any representation to the contrary is a criminal of-
            fense.
 
            Shares of the Funds are not deposits or obligations of, or guaran-
            teed or endorsed by, any financial institution, and the shares are
            not federally insured by the Federal Deposit Insurance Corpora-
            tion, the Federal Reserve Board or any other agency, and involve
            risk, including the possible loss of principal.
 
 
 
              TABLE OF CONTENTS                               
                                                             
              PIMCO Funds Overview..................3     
              Schedule of Fees......................4     
              Financial Highlights..................6     
              Investment Objectives and Policies....8     
              Characteristics and Risks of Securities     
               and Investment Techniques...........11     
              Performance Information..............22     
              How to Buy Shares....................23     
              Exchange Privilege...................24     
              How to Redeem........................24    
              Distributor..........................25    
              How Net Asset Value Is Determined....25    
              Distributions........................26    
              Taxes................................26    
              Management of the Trust..............27    
              Description of the Trust.............32          


2  PIMCO Funds: Multi-Manager Series
 
<PAGE>
 
 
            PIMCO Funds Overview
               
            PIMCO Advisors L.P. ("PIMCO Advisors" or the "Adviser") is the in-
            vestment adviser of all the Funds. PIMCO Advisors is one of the
            largest investment management firms in the U.S. As of December 31,
            1998, PIMCO Advisors and its subsidiary partnerships had approxi-
            mately $244.2 billion in assets under management. Each Fund has a
            sub-adviser (each a "Portfolio Manager") responsible for portfolio
            investment decisions, except that the PIMCO Equity Advisors Divi-
            sion of PIMCO Advisors (the "PIMCO Equity Advisors Division") man-
            ages the investments of the Innovation Fund. Acting in this capac-
            ity, the PIMCO Equity Advisors Division is sometimes referred to
            in this Prospectus as a "Portfolio Manager." Each sub-adviser is
            an affiliate of PIMCO Advisors. The Portfolio Managers are listed
            below.     
 
 
<TABLE>   
<CAPTION>
                                      Investment Specialty
              ------------------------------------------------------------------------------
           <S>                        <C>
           PIMCO Equity Advisors      [Description of investment specialty to be provided]
           Division
                                      ------------------------------------------------------
           Cadence Capital            Stocks of growth companies that the Portfolio Manager
           Management ("Cadence")     believes are trading at a reasonable price
                                      ------------------------------------------------------
           Columbus Circle            Stocks, using its "Positive Momentum & Positive
           Investors ("Columbus       Surprise" discipline
           Circle")
                                      ------------------------------------------------------
           NFJ Investment Group       Value stocks that the Portfolio Manager believes are
           ("NFJ")                    undervalued and/or offer above-average dividend yields
                                      ------------------------------------------------------
           Parametric Portfolio       Stocks, using quantitatively-driven fundamental
           Associates ("Parametric")  analysis and economic methods, with a specialty in
                                      tax-efficient products
</TABLE>    
 
 
<TABLE>   
<CAPTION>
                            Fund Name     Investment Objective     Primary Investments (/1/)  Portfolio Manager
              -------------------------------------------------------------------------------------------------
           <S>              <C>           <C>                      <C>                        <C>
           Blend Stock      Capital       Growth of capital        Common stocks of companies Cadence
           Funds            Appreciation                           with market
                                                                   capitalizations of at
                                                                   least $1 billion that have
                                                                   improving fundamentals and
                                                                   whose stock is reasonably
                                                                   valued by the market
                       ----------------------------------------------------------------------------------------
                            Mid-Cap       Growth of capital        Common stocks of companies Cadence
                            Growth                                 with market
                                                                   capitalizations in excess
                                                                   of $500 million that have
                                                                   improving fundamentals and
                                                                   whose stock is reasonably
                                                                   valued by the market
              -------------------------------------------------------------------------------------------------
           Value Stock      Equity        Current income as a      Common stocks with below-  NFJ
           Funds            Income        primary objective; long- average price to earnings
                                          term growth of capital   ratios and higher dividend
                                          as a secondary objective yields relative to their
                                                                   industry groups
                       ----------------------------------------------------------------------------------------
                            Renaissance   Long-term growth of      Common stocks with below-  Columbus Circle
                                          capital and income       average valuations that
                                                                   have improving business
                                                                   fundamentals
                       ----------------------------------------------------------------------------------------
                            Value         Long-term growth of      Common stocks with below-  NFJ
                                          capital and income       average price to earnings
                                                                   ratios relative to their
                                                                   industry groups
              -------------------------------------------------------------------------------------------------
           Enhanced         Tax-Efficient Maximum after-tax growth A broadly diversified      Parametric
           Index Stock      Equity        of capital               portfolio of at least 200
           Funds                                                   common stocks of companies
                                                                   with larger market
                                                                   capitalizations
              -------------------------------------------------------------------------------------------------
           Sector-Related   Innovation    Capital appreciation; no Common stocks of companies PIMCO Equity
           Stock Funds                    consideration given to   with small, medium and     Advisors Division
                                          income                   large market
                                                                   capitalizations
                                                                   (technology-related
                                                                   stocks)
</TABLE>    
 
Fund
Profiles
 
            1. For specific information concerning the market capitalizations
            of companies in which each Fund may invest and each Fund's invest-
            ment style, see "Investment Objectives and Policies" in this Pro-
            spectus.
 
                                                  
                                               April   , 1999 Prospectus     
                                                                               3
<PAGE>
 
            Schedule of Fees
 
 
 
 
<TABLE>
<CAPTION>

Shareholder
Transaction
Expenses

           All Funds--Class D Shares
           ---------------------------------------------------------------
<S>                                                                   <C>
           Maximum initial sales charge imposed on purchases
            (as a percentage of offering price at time of purchase)   None
           ---------------------------------------------------------------
           Maximum sales charge imposed on reinvested dividends
            (as a percentage of net asset value at time of purchase)  None
           ---------------------------------------------------------------
           Maximum deferred sales charge
            (as a percentage of original purchase price)              None
           ---------------------------------------------------------------
           Exchange Fee                                               None
</TABLE>
 
              
              
              
 
 
 
<TABLE>
<CAPTION>
 
                                                                        Example: You would pay the
                                                                        following expenses on a $1,000
                                                                        investment assuming (1) 5%
                                 Annual Fund Operating Expenses         annual return and (2) with or
                                 (As a percentage of average net        without redemption at the end
                                 assets):                               of each time period:
                                                              Total
                                          Admini-   12b-1     Fund
                                 Advisory strative  (Service) Operating Year
           Fund                  Fees     Fees(/1/) Fees(/1/) Expenses  1        3       5       10
           ----------------------------------------------------------------------------------------------
           <S>                   <C>      <C>       <C>       <C>       <C>      <C>     <C>     <C>
           Equity Income         .45%     .40%      .25%      1.10%         $11      $35     $61     $134
           ----------------------------------------------------------------------------------------------
           Value                 .45      .40       .25       1.10           11       35      61      134
           ----------------------------------------------------------------------------------------------
           Renaissance           .60      .40       .25       1.25           13       40      69      151
           ----------------------------------------------------------------------------------------------
           Tax-Efficient Equity  .45      .40       .25       1.10           11       35      --       --
           ----------------------------------------------------------------------------------------------
           Capital Appreciation  .45      .40       .25       1.10           11       35      61      134
           ----------------------------------------------------------------------------------------------
           Mid-Cap Growth        .45      .40       .25       1.10           11       35      61      134
           ----------------------------------------------------------------------------------------------
           Innovation            .65      .40       .25       1.30           13       41      71      157
</TABLE>
 
            1. The Funds' administration agreement includes a plan for Class D
            shares that has been adopted in conformity with the requirements
            set forth in Rule 12b-1 under the Investment Company Act of 1940.
            The plan provides that up to .25% per annum of the total fees paid
            under the administration agreement may represent reimbursement for
            expenses in respect of activities ("subject activities") that may
            be deemed to be primarily intended to result in the sale of Class
            D shares. Each Fund will pay a total of .65% per annum under the
            administration agreement regardless of whether a portion or none
            of the .25% authorized under the plan is paid for subject servic-
            es. To the extent that any payments are deemed to be made pursuant
            to the plan, the Funds intend to treat such payments as "service
            fees" for purposes of applicable rules of the National Association
            of Securities Dealers, Inc. (the "NASD"). See "Management of the
            Trust--Fund Administrator." To the extent that such payments for
            subject activities are deemed not to be "service fees," Class D
            shareholders may, depending on the length of time the shares are
            held, pay more than the economic equivalent of the maximum front-
            end sales charges permitted by relevant rules of the NASD.
 
            The purpose of the foregoing tables is to assist investors in un-
            derstanding the various costs and expenses of the Trust that are
            borne directly or indirectly by Class D shareholders of the Funds.
            The information is based upon each Fund's current fees and ex-
            penses.
 
            NOTE: The figures shown in the Example are entirely hypothetical.
            They are not representations of past or future performance or ex-
            penses; actual performance and/or expenses may be more or less
            than shown.
     
 
4    PIMCO Funds: Multi-Manager Series    
<PAGE>
 
 
 
 
                      (This page left blank intentionally)
 
 
 
 




                                                  
                                                April   , 1999 Prospectus  5    


<PAGE>
 
Financial Highlights
   
The financial highlights set forth on the following pages present certain in-
formation and ratios as well as performance information for Class D shares of
the Funds that were operational during the periods listed. The information pro-
vided below is included in the June 30, 1998 PIMCO Funds Annual Report (relat-
ing to Class D shares) and has been audited by PricewaterhouseCoopers LLP, in-
dependent accountants, whose report thereon is also included in such Annual Re-
port. The Annual Report is incorporated by reference in the Statement of Addi-
tional Information and may be obtained without charge from the Distributor. Fi-
nancial Statements and related notes are also incorporated by reference in the
Statement of Additional Information. [Unaudited information for the period
ended December 31, 1998 to be included in a Post-Effective Amendment filed
prior to the effective date of this Amendment.]     
 
<TABLE>
<CAPTION>

Selected Per                                    Net Realized/                  Dividends  Dividends in  Distributions
Class D Share     Net Asset Value Net           Unrealized     Total Income    From Net   Excess of Net From Net
Data for the      Beginning       Investment    Gain (Loss) on From Investment Investment Investment    Realized Capital
Period Ended:     of Period       Income (Loss) Investments    Operations      Income     Income        Gains
                  --------------- ------------- -------------- --------------- ---------- ------------- ----------------
<S>               <C>             <C>           <C>            <C>             <C>        <C>           <C>
Equity Income
 Fund
 04/08/98-
  06/30/98           $  16.71       $ 0.09 (a)     $(0.66)(a)     $  (0.57)     $  (0.10)   $   0.00        $   0.00
Value Fund
 04/08/98-
  06/30/98           $  15.99       $ 0.04 (a)     $(0.34)(a)     $  (0.30)     $  (0.05)   $   0.00        $   0.00
Renaissance Fund
 04/08/98-
  06/30/98           $  18.99       $ 0.01 (a)     $ 0.10 (a)     $   0.11      $   0.00    $   0.00        $   0.00
Capital
 Appreciation
 Fund
 04/08/98-
  06/30/98           $  25.41       $ 0.02 (a)     $ 0.58 (a)     $   0.60      $   0.00    $   0.00        $   0.00
Mid-Cap Growth
 Fund
 04/08/98-
  06/30/98           $  23.97       $ 0.00 (a)     $ 0.02 (a)     $   0.02      $   0.00    $   0.00        $   0.00
Innovation Fund
 04/08/98-
  06/30/98           $  21.50       $(0.05)(a)     $ 2.83 (a)     $   2.78      $   0.00    $   0.00        $   0.00

<CAPTION>
Selected Per      Distributions
Class D Share     in Excess of
Data for the      Net Realized
Period Ended:     Capital Gains
                  -------------
<S>               <C>
Equity Income
 Fund
 04/08/98-
  06/30/98          $   0.00
Value Fund
 04/08/98-
  06/30/98          $   0.00
Renaissance Fund
 04/08/98-
  06/30/98          $   0.00
Capital
 Appreciation
 Fund
 04/08/98-
  06/30/98          $   0.00
Mid-Cap Growth
 Fund
 04/08/98-
  06/30/98          $   0.00
Innovation Fund
 04/08/98-
  06/30/98          $   0.00
</TABLE>
*Annualized
(a)Per share amounts based upon average number of shares outstanding during the
period.
 


6  PIMCO Funds: Multi-Manager Series 
<PAGE>
 
 
 
<TABLE>
<CAPTION>
                                                                                             Ratio of Net
                                                                                 Ratio of    Investment
Distribution  Tax Basis               Net Asset                                  Expenses to Income (Loss) to
from          Return of Total         Value End of              Net Assets End   Average Net Average Net      Portfolio
Equalization  Capital   Distributions Period       Total Return of Period (000s) Assets      Assets           Turnover Rate
- ------------  --------- ------------- ------------ ------------ ---------------- ----------- ---------------- -------------
<S>           <C>       <C>           <C>          <C>          <C>              <C>         <C>              <C>
  $   0.00    $   0.00    $  (0.10)     $  16.04      (3.43)%       $    104        1.10%*         2.23%*           45%
  $   0.00    $   0.00    $  (0.05)     $  15.64      (1.85)%       $     98        1.10%*         1.23%*           77%
  $   0.00    $   0.00    $   0.00      $  19.10       0.58%        $    126        1.25%*         0.21%*          192%
  $   0.00    $   0.00    $   0.00      $  26.01       2.36%        $    118        1.10%*         0.27%*           75%
  $   0.00    $   0.00    $   0.00      $  23.99       0.08%        $    142        1.10%*         0.03%*           66%
  $   0.00    $   0.00    $   0.00      $  24.28      12.93%        $    139        1.30%*        (0.99)%*         100%
</TABLE>
 
                                                  
                                                April   , 1999 Prospectus  7    
                                                                               
<PAGE>
 
            Investment Objectives and Policies
            The investment objective and general investment policies of each
            Fund are described below. There can be no assurance that the in-
            vestment objective of any Fund will be achieved. Because the mar-
            ket value of each Fund's investments will change, the net asset
            value per share of each Fund will also vary. Specific portfolio
            securities eligible for purchase by the Funds, investment tech-
            niques that may be used by the Funds, and the risks associated
            with these securities and techniques are described more fully un-
            der "Characteristics and Risks of Securities and Investment Tech-
            niques" in this Prospectus and "Investment Objectives and Poli-
            cies" in the Statement of Additional Information.

Fund        
Descriptions
            Equity Income Fund seeks current income as a primary investment
            objective, and long-term growth of capital as a secondary objec-
            tive. The Fund invests primarily in common stocks characterized by
            having below-average price to earnings ("P/E") ratios and higher
            dividend yields relative to their industry groups. In selecting
            securities, the Portfolio Manager classifies a universe of approx-
            imately 2,000 stocks by industry, each of which has a minimum mar-
            ket capitalization of $200 million at the time of investment. The
            universe is then screened to find the lowest P/E ratios in each
            industry, subject to application of quality and price momentum
            screens. From this group, approximately 25 stocks with the highest
            yields are chosen for the Fund. The universe is then rescreened to
            find the highest yielding stock in each industry, subject to ap-
            plication of quality and price momentum screens. From this group,
            approximately 25 stocks with the lowest P/E ratios are added to
            the Fund. Although quarterly rebalancing is a general rule, re-
            placements are made whenever an alternative stock within the same
            industry has a significantly lower P/E ratio or higher dividend
            yield than the current Fund holding. The Portfolio Manager for the
            Equity Income Fund is NFJ.
               
            Value Fund seeks long-term growth of capital and income. The Fund
            invests primarily in common stocks characterized by having below-
            average P/E ratios relative to their industry groups. In selecting
            securities, the Portfolio Manager classifies a universe of approx-
            imately 2,000 stocks by industry, each of which has a minimum mar-
            ket capitalization of $200 million at the time of investment. The
            universe is then screened to find the stocks with the lowest P/E
            ratios in each industry, subject to application of quality and
            price momentum screens. The stocks in each industry with the low-
            est P/E ratios that pass the quality and price momentum screens
            are then selected for the Fund. The Fund usually invests in ap-
            proximately 50 stocks, although the Fund may reduce its holdings
            below this number (normally not below 30 stocks) if the Portfolio
            Manager believes that this would help the Fund to achieve its in-
            vestment objective. Although quarterly rebalancing is a general
            rule, replacements are made whenever an alternative stock within
            the same industry has a significantly lower P/E ratio than the
            current Fund holdings. The Portfolio Manager for the Value Fund is
            NFJ.     
 
            Renaissance Fund seeks long-term growth of capital and income. The
            Fund invests primarily in common stocks having below-average valu-
            ations whose issuers are experiencing improvements in their busi-
            ness fundamentals. Relative valuation is determined using a multi-
            factor approach that examines characteristics such as price to
            book, price to earnings and price to cash flow ratios. Stocks
            which pass the valuation screen are further analyzed to identify
            the key drivers of financial results and catalysts for change
            which indicate that a company may demonstrate improving fundamen-
            tals in the future. Stocks which appear likely to exceed consensus
            expectations are candidates for addition to the Fund's portfolio.
            Stocks are sold from the Fund's portfolio when the Portfolio Man-
            ager believes that their ability to exceed investor expectations
            has diminished or when their valuations have become excessive.
               The Fund may invest a portion of its assets in securities of
            foreign issuers traded in foreign securities markets (not includ-
            ing Eurodollar certificates of deposit), which will not exceed 15%
            of the Fund's assets at the time of investment. Investing in the
            securities of foreign issuers involves special risks and consider-
            ations not typically associated with investing in U.S. securities.
            For a discussion of such risks, see "Characteristics and Risks of
            Securities and Investment Techniques--Foreign Securities." The
            Fund may also purchase and write call and put options on securi-
            ties and securities indexes; enter into futures contracts and use
            options on futures contracts; buy or sell foreign currencies; and
            enter into forward foreign currency contracts. The Portfolio Man-
            ager for the Renaissance Fund is Columbus Circle.
 
 
8  PIMCO Funds: Multi-Manager Series
<PAGE>
 
                                               
                                               
            Tax-Efficient Equity Fund seeks maximum after-tax growth of capi-
            tal. The Fund attempts to provide a total return which exceeds the
            return of the Standard & Poor's 500 Composite Stock Price Index
            (the "S&P 500"). In addition, the Fund seeks to achieve superior
            after-tax returns for its shareholders in part by minimizing the
            taxes they incur in connection with the Fund's investment income
            and realized capital gains by using the strategies described be-
            low. Notwithstanding these strategies, the Fund may have taxable
            investment income and may realize taxable gains from time to time.
               
                 The Fund invests primarily in a broadly diversified portfolio
            of at least 200 common stocks. Normally, at least 95% of the
            Fund's assets will be invested in stocks represented in the S&P
            500 and the Fund's portfolio is designed to have certain charac-
            teristics that are similar to those of the index. These character-
            istics include such measures as dividend yield, P/E ratio, rela-
            tive volatility, economic sector exposure, return on equity and
            market price-to-book value ratio. However, the Portfolio Manager
            attempts to construct a portfolio that produces a higher total re-
            turn than the S&P 500 by using the quantitative security selection
            techniques described below. Of course, there can be no assurance
            that the Fund's investment performance will equal or exceed that
            of the S&P 500.     
               
               In selecting specific securities, the Portfolio Manager uses a
            proprietary quantitative model that ranks companies based on long-
            term (5-10 years) price appreciation potential through analysis of
            such factors as growth of sustainable earnings and dividend behav-
            ior. Securities in the top 50% of the model's ranking are consid-
            ered for purchase. The Portfolio Manager's sell discipline incor-
            porates a focus on reducing the realization of capital gains. Each
            sell candidate is evaluated based on its cost, current market val-
            ue, and anticipated benefit of replacement. Securities in the bot-
            tom 20% of the model's ranking are considered for sale. The Fund
            may engage in the purchase and writing of options on securities
            indexes and may also invest in stock index futures contracts and
            options thereon.     
               The Portfolio Manager utilizes a range of active tax management
            techniques to minimize taxable distributions, including: low port-
            folio turnover; emphasis towards low-dividend, growth-oriented
            companies; tax lot accounting (identification of specific shares
            of securities being sold that have the lowest tax cost); and regu-
            lar rebalancing to capture available tax credits. The Fund will
            generally seek to avoid realizing net short-term capital gains
            and, when realizing gains, will attempt to realize long-term gains
            (i.e., gains on securities held for more than 12 months). The Fund
            intends to notify each shareholder as to that portion of his or
            her capital gain dividends which qualifies for a long-term tax
            rate of 20% in the hands of the shareholder. Net short-term capi-
            tal gains, when distributed, will be taxed as ordinary income, at
            graduated rates of up to 39.6%. When the Fund decides to sell a
            particular appreciated security, it will normally select for sale
            first those share lots with holding periods exceeding 12 months
            and among those, the share lots with the highest cost basis. The
            Fund may, when prudent, sell securities to realize capital losses
            that can be used to offset realized capital gains.
               To protect against price declines in securities holdings with
            large accumulated capital gains, the Fund may, to the extent per-
            mitted by law, use hedging techniques such as the purchase of put
            options, the sale of stock index futures contracts and equity
            swaps. By using these techniques rather than selling such securi-
            ties, the Fund can reduce its exposure to price declines in the
            securities without realizing substantial capital gains. In limited
            circumstances, the Fund may follow the practice of distributing
            selected appreciated securities to meet redemptions of certain in-
            vestors and may, within certain limits, use the selection of secu-
            rities distributed to meet such redemptions as a management tool.
            By distributing appreciated securities the Fund can reduce its po-
            sition in such securities without realizing capital gains. During
            periods of net withdrawals by investors, using distributions of
            securities could enable the Fund to avoid the forced sale of secu-
            rities to raise cash for meeting redemptions.
               It is expected that by employing the various tax-efficient man-
            agement strategies described above, the Fund can minimize the ex-
            tent to which shareholders incur taxes as a result of realized
            capital gains. The Fund may nevertheless realize gains and share-
            holders will incur tax liability from time to time. The Portfolio
            Manager for the Tax-Efficient Equity Fund is Parametric.
 
                              
                                                                           
                                             April   , 1999 Prospectus 9      
<PAGE>
 
 
            Capital Appreciation Fund seeks growth of capital. The Fund in-
            vests primarily in common stocks of companies that have improving
            fundamentals (such as growth of earnings and dividends) and whose
            stock is reasonably valued by the market. Stocks for the Fund are
            selected from a universe of the approximately 1,000 largest market
            capitalization stocks, all of which are those of companies with
            market capitalizations of at least $1 billion at the time of in-
            vestment. The Fund usually invests in approximately 60 to 100 com-
            mon stocks. Each issue is screened and ranked using five distinct
            computerized models, including: (i) a dividend growth screen, (ii)
            an equity growth screen, (iii) an earnings growth screen, (iv) an
            earnings momentum screen, and (v) an earnings surprise screen. The
            Portfolio Manager believes that the models identify the stocks in
            the universe exhibiting growth characteristics with reasonable
            valuations. Stocks are replaced when they score worse-than-median
            screen ranks, have negative earnings surprises, or show poor rela-
            tive price performance. The universe is rescreened frequently to
            obtain a favorable composition of growth and value characteristics
            for the entire Fund. The Portfolio Manager for the Capital Appre-
            ciation Fund is Cadence.
 
            Mid-Cap Growth Fund seeks growth of capital. The Fund invests pri-
            marily in common stocks of middle capitalization companies that
            have improving fundamentals (such as growth of earnings and divi-
            dends) and whose stock is reasonably valued by the market. Stocks
            for the Fund are selected from a universe of companies with market
            capitalizations in excess of $500 million at the time of invest-
            ment, excluding the 200 companies with the highest market capital-
            ization. The Fund usually invests in approximately 60 to 100 com-
            mon stocks. Each issue is screened and ranked using five distinct
            computerized models, including: (i) a dividend growth screen, (ii)
            an equity growth screen, (iii) an earnings growth screen, (iv) an
            earnings momentum screen, and (v) an earnings surprise screen. The
            Portfolio Manager believes that the models identify the stocks in
            the universe exhibiting growth characteristics with reasonable
            valuations. Stocks are replaced when they score worse-than-median
            screen ranks, have negative earnings surprises, or show poor rela-
            tive price performance. The universe is rescreened frequently to
            obtain a favorable composition of growth and value characteristics
            for the entire Fund. The Portfolio Manager for the Mid-Cap Growth
            Fund is Cadence.
               
            Innovation Fund seeks capital appreciation. No consideration is
            given to income. The Fund invests primarily (i.e., at least 65% of
            its assets) in common stocks of companies which utilize innovative
            technologies to gain a strategic competitive advantage in their
            industry as well as companies that provide and service those tech-
            nologies. Although the Fund emphasizes the utilization of technol-
            ogies, it is not restricted to investment in companies in a par-
            ticular business sector or industry.     
               
               The Fund may invest a portion of its assets in securities of
            foreign issuers traded in foreign securities markets (not includ-
            ing Eurodollar certificates of deposit), which will not exceed 15%
            of the Fund's assets at the time of investment. Investing in the
            securities of foreign issuers involves special risks and consider-
            ations not typically associated with investing in U.S. companies.
            For a discussion of such risks, see "Characteristics and Risks of
            Securities and Investment Techniques--Foreign Securities." The
            Fund may also purchase and write call and put options on securi-
            ties and securities indexes; enter into futures contracts and use
            options on futures contracts; buy or sell foreign currencies; and
            enter into forward foreign currency contracts. The Portfolio Man-
            ager for the Innovation Fund is the PIMCO Equity Advisors Division
            of PIMCO Advisors.     
 
 
Stock
Investments The Equity Income, Value, Tax-Efficient Equity, Capital Apprecia-
            tion and Mid-Cap Growth Funds will each invest primarily (normally
            at least 65% of its assets) in common stock. Each of these Funds
            may maintain a portion of its assets, which will usually not ex-
            ceed 10%, in U.S. Government securities, high quality debt securi-
            ties (whose maturity or remaining maturity will not exceed five
            years), money market obligations, and in cash to provide for pay-
            ment of the Fund's expenses and to meet redemption requests. It is
            the policy of these Funds to be as fully invested in common stocks
            as practicable at all times. This policy precludes these Funds
            from investing in debt securities as a defensive investment pos-
            ture (although these Funds may invest in such securities to pro-
            vide for payment of expenses and to meet redemption requests). Ac-
            cordingly, investors in these Funds bear the risk of general de-
            clines in stock prices and


10  PIMCO Funds: Multi-Manager Series
 

<PAGE>
 

            the risk that a Fund's exposure to such declines cannot be less-
            ened by investment in debt securities. These Funds may also invest
            in convertible securities, preferred stocks, and warrants, subject
            to certain limitations.
 
               The Renaissance and Innovation Funds will invest primarily
            (normally at least 65% of its assets) in common stocks, and may
            also invest in other equity securities, including preferred stocks
            and securities (including debt securities and warrants) convert-
            ible into or exercisable for common stocks. Each of these Funds
            may invest a portion of its assets in debt securities and, for
            temporary defensive purposes, up to 100% of its assets in short-
            term U.S. Government securities and other money market instru-
            ments.
               One or more of the Funds may temporarily not be invested pri-
            marily in equity securities immediately following the commencement
            of operations or after receipt of significant new monies. While
            attempting to identify suitable investments, the Funds may hold
            assets in cash, short-term U.S. Government Securities and other
            money market instruments. Any of the Funds may temporarily not
            contain the number of securities in which it normally invests if
            the Fund does not have sufficient assets to be fully invested, or
            pending the Portfolio Manager's ability to prudently invest new
            monies.
               The Funds may also lend portfolio securities; enter into repur-
            chase agreements and reverse repurchase agreements (subject to the
            Funds' investment limitations described below); purchase and sell
            securities on a when-issued or delayed delivery basis; and enter
            into forward commitments to purchase securities. Each of the Funds
            may invest in American Depository Receipts ("ADRs"), and the Re-
            naissance and Innovation Funds may also invest in European Deposi-
            tory Receipts ("EDRs") and Global Depository Receipts ("GDRs").
            For more information on these investment practices, see "Charac-
            teristics and Risks of Securities and Investment Techniques" in
            this Prospectus and "Investment Objectives and Policies" in the
            Statement of Additional Information.
 
            Characteristics and Risks of
            Securities and Investment Techniques
 
            The different types of securities and investment techniques used
            by the individual Funds all have attendant risks of varying de-
            grees. For example, with respect to common stock, there can be no
            assurance of capital appreciation, and there is a risk of market
            decline. With respect to debt securities, including money market
            instruments, there is the risk that the issuer of a security may
            not be able to meet its obligation to make scheduled interest or
            principal payments. Because each Fund seeks a different investment
            objective and has different investment policies, each is subject
            to varying degrees of financial, market and credit risks. There-
            fore, investors should carefully consider the investment objec-
            tive, investment policies and potential risks of any Fund or Funds
            before investing.
               The following describes potential risks associated with differ-
            ent types of investment techniques that may be used by the indi-
            vidual Funds. For more detailed information on these investment
            techniques, as well as information on the types of securities in
            which some or all of the Funds may invest, see the Statement of
            Additional Information.
 
 
            Certain of the Funds may invest in common stock of companies with
            market capitalizations that are small compared to other publicly
            traded companies. Generally, small market capitalization is con-
            sidered to be less than $1.5 billion and large market capitaliza-
            tion is considered to be more than $5 billion. Investments in
            larger companies present certain advantages in that such companies
            generally have greater financial resources, more extensive re-
            search and development, manufacturing, marketing and service capa-
            bilities, and more stability and greater depth of management and
            technical personnel. Investments in smaller, less seasoned compa-
            nies may present greater opportunities for growth but also may in-
            volve greater risks than customarily are associated with more es-
            tablished companies. The securities of
Investments
In Companies
With Small
and Medium
Market
Capitalizations
            smaller companies may be subject to more abrupt or erratic market
            movements than larger, more established companies. These companies
            may have limited product lines, markets or financial resources, or
            they may be dependent upon a limited management group. Their secu-
            rities may be traded in the over-the-counter market or on a re-
            gional exchange, or may otherwise have limited liquidity. As a re-
            sult of owning large positions in this type of security, a Fund is
 


                                             April   , 1999 Prospectus       11

<PAGE>
 

            subject to the additional risk of possibly having to sell portfo-
            lio securities at disadvantageous times and prices if redemptions
            require the Fund to liquidate its securities positions. In addi-
            tion, it may be prudent for a Fund with a relatively large asset
            size to limit the number of relatively small positions it holds in
            securities having limited liquidity in order to minimize its expo-
            sure to such risks, to minimize transaction costs, and to maximize
            the benefits of research. As a consequence, as a Fund's asset size
            increases, the Fund may reduce its exposure to illiquid small cap-
            italization securities, which could adversely affect performance.
               Many of the Funds may also invest in stocks of companies with
            medium market capitalizations. Whether a U.S. issuer's market cap-
            italization is medium is determined by reference to the capital-
            ization for all issuers whose equity securities are listed on a
            United States national securities exchange or which are reported
            on NASDAQ. Issuers with market capitalizations within the range of
            capitalization of companies included in the S&P Mid Cap 400 Index
            may be regarded as being issuers with medium market capitaliza-
            tions. Such investments share some of the risk characteristics of
            investments in stocks of companies with small market capitaliza-
            tions described above, although such companies tend to have longer
            operating histories, broader product lines and greater financial
            resources and their stocks tend to be more liquid and less vola-
            tile than those of smaller capitalization issuers.
 
 
Foreign Securities
            The Renaissance and Innovation Funds may invest up to 15% of their
            respective assets in securities which are traded principally in
            securities markets outside the United States (Eurodollar certifi-
            cates of deposit are excluded for purposes of these limitations),
            and may invest without limit in securities of foreign issuers that
            are traded in U.S. markets. All of the Funds may invest in ADRs.
            In addition, the Renaissance and Innovation Funds may invest in
            EDRs and GDRs. ADRs are dollar denominated receipts issued gener-
            ally by domestic banks and representing the deposit with the bank
            of a security of a foreign issuer, and are publicly traded on ex-
            changes or over-the-counter in the United States. EDRs are re-
            ceipts similar to ADRs and are issued and traded in Europe. GDRs
            may be offered privately in the United States and also trade in
            public or private markets in other countries.
               Investing in the securities of issuers in any foreign country
            involves special risks and considerations not typically associated
            with investing in U.S. companies. Shareholders should consider
            carefully the substantial risks involved in investing in securi-
            ties issued by companies and governments of foreign nations. These
            risks include: differences in accounting, auditing and financial
            reporting standards; generally higher commission rates on foreign
            portfolio transactions; the possibility of nationalization, expro-
            priation or confiscatory taxation; adverse changes in investment
            or exchange control regulations (which may include suspension of
            the ability to transfer currency from a country); and political
            instability which could affect U.S. investments in foreign coun-
            tries. Individual foreign economies may differ favorably or unfa-
            vorably from the U.S. economy in such respects as growth of gross
            domestic product, rate of inflation, capital reinvestment, re-
            sources, self-sufficiency, and balance of payments position. The
            securities markets, values of securities, yields, and risks asso-
            ciated with securities markets may change independently of each
            other. Additionally, foreign securities and dividends and interest
            payable on those securities may be subject to foreign taxes, in-
            cluding taxes withheld from payments on those securities. Foreign
            securities often trade with less frequency and volume than domes-
            tic securities and therefore may exhibit greater price volatility.
            Additional costs associated with an investment in foreign securi-
            ties may include higher custodial fees than apply to domestic cus-
            todial arrangements and transaction costs of foreign currency con-
            versions. Changes in foreign exchange rates also will affect the
            value of securities denominated or quoted in currencies other than
            the U.S. dollar.
               A Fund's investments in foreign currency denominated debt obli-
            gations and hedging activities will likely produce a difference
            between its book income and its taxable income. This difference
            may cause a portion of the Fund's income distributions to consti-
            tute returns of capital for tax purposes or require the Fund to
            make distributions exceeding book income to qualify as a regulated
            investment company for federal tax purposes.
               To the extent that the Renaissance and Innovation Funds invest
            in foreign securities, these Funds may invest in the securities of
            issuers based in countries with developing economies. Investing in
            developing (or "emerging market") countries involves certain risks
            not typically associated with investing in U.S. securities, and
            imposes risks greater than,
 

12  PIMCO Funds: Multi-Manager Series
<PAGE>
 

            or in addition to, risks of investing in foreign, developed coun-
            tries. A number of emerging market countries restrict, to varying
            degrees, foreign investment in securities. Repatriation of invest-
            ment income, capital, and the proceeds of sales by foreign invest-
            ors may require governmental registration and/or approval in some
            emerging market countries. A number of the currencies of emerging
            market countries have experienced significant declines against the
            U.S. dollar in recent years, and devaluation may occur subsequent
            to investments in these currencies by a Fund. Inflation and rapid
            fluctuations in inflation rates have had, and may continue to
            have, negative effects on the economies and securities markets of
            certain emerging market countries. Many of the emerging securities
            markets are relatively small, have low trading volumes, suffer pe-
            riods of relative illiquidity, and are characterized by signifi-
            cant price volatility. There is a risk in emerging market coun-
            tries that a future economic or political crisis could lead to
            price controls, forced mergers of companies, expropriation or con-
            fiscatory taxation, seizure, nationalization, or creation of gov-
            ernment monopolies, any of which may have a detrimental effect on
            a Fund's investment.
               Additional risks of investing in emerging market countries may
            include: currency exchange rate fluctuations; greater social, eco-
            nomic and political uncertainty and instability (including the
            risk of war); more substantial governmental involvement in the
            economy; less governmental supervision and regulation of the secu-
            rities markets and participants in those markets; unavailability
            of currency hedging techniques in certain emerging market coun-
            tries; the fact that companies in emerging market countries may be
            newly organized and may be smaller and less seasoned companies;
            the difference in, or lack of, auditing and financial reporting
            standards, which may result in unavailability of material informa-
            tion about issuers; the risk that it may be more difficult to ob-
            tain and/or enforce a judgment in a court outside the United
            States; and significantly smaller market capitalization of securi-
            ties markets. Also, any change in the leadership or policies of
            emerging market countries, or the countries that exercise a sig-
            nificant influence over those countries, may halt the expansion of
            or reverse the liberalization of foreign investment policies now
            occurring and adversely affect existing investment opportunities.
               In addition, emerging securities markets may have different
            clearance and settlement procedures, which may be unable to keep
            pace with the volume of securities transactions or otherwise make
            it difficult to engage in such transactions. Settlement problems
            may cause a Fund to miss attractive investment opportunities, hold
            a portion of its assets in cash pending investment, or delay in
            disposing of a portfolio security. Such a delay could result in
            possible liability to a purchaser of the security.
 
Foreign     Foreign currency exchange rates may fluctuate significantly over
Currency    short periods of time. They generally are determined by the forces
Transactionsof supply and demand in the foreign exchange markets and the rela-
            tive merits of investments in different countries, actual or per-
            ceived changes in interest rates and other complex factors, as
            seen from an international perspective. Currency exchange rates
            also can be affected unpredictably by intervention (or the failure
            to intervene) by U.S. or foreign governments or central banks, or
            by currency controls or political developments in the U.S. or
            abroad. For example, significant uncertainty surrounds the pro-
            posed introduction of the euro (a common currency unit for the Eu-
            ropean Union) in January 1999 and its effect on the value of secu-
            rities denominated in local European currencies. These and other
            currencies in which the Funds' assets are denominated may be de-
            valued against the U.S. dollar, resulting in a loss to the Funds.
            For a more complete discussion of foreign currency risks (includ-
            ing those associated with the euro), please see "Investment Objec-
            tives and Policies--Foreign Currencies" in the Statement of Addi-
            tional Information.
               
               The Renaissance and Innovation Funds may enter into forward
            foreign currency exchange contracts to reduce the risks of adverse
            changes in foreign exchange rates. A forward foreign currency ex-
            change contract involves an obligation to purchase or sell a spe-
            cific currency at a future date, which may be any fixed number of
            days from the date of the contract agreed upon by the parties, at
            a price set at the time of the contract. By entering into a for-
            ward foreign currency exchange contract, the Fund "locks in" the
            exchange rate between the currency it will deliver and the cur-
            rency it will receive for the duration of the contract. As a re-
            sult, a Fund reduces its exposure to changes in the value of the
            currency it will deliver and increases its exposure to changes in
            the value of the currency it will exchange     
 
                                              April   , 1999 Prospectus      13
<PAGE>
 

            into. The effect on the value of a Fund is similar to selling se-
            curities denominated in one currency and purchasing securities de-
            nominated in another currency. Contracts to sell foreign currency
            would limit any potential gain which might be realized by a Fund
            if the value of the hedged currency increases. A Fund may enter
            into these contracts for the purpose of hedging against foreign
            exchange risk arising from the Fund's investment or anticipated
            investment in securities denominated in foreign currencies. Suit-
            able hedging transactions may not be available in all circum-
            stances and there can be no assurance that a Fund will engage in
            such transactions at any given time or from time to time. Also,
            such transactions may not be successful and may eliminate any
            chance for a Fund to benefit from favorable fluctuations in rele-
            vant foreign currencies.
 
 
Money       Each of the Funds may invest at least a portion of its assets in
Market      the following kinds of money market instruments:
Instruments    (1)short-term U.S. Government securities;
               (2) certificates of deposit, bankers' acceptances and other
                   bank obligations rated in the two highest rating categories
                   by at least two NRSROs, or, if rated by only one NRSRO, in
                   such agency's two highest grades, or, if unrated,
                   determined to be of comparable quality by the Adviser or a
                   Portfolio Manager. Bank obligations must be those of a bank
                   that has deposits in excess of $2 billion or that is a
                   member of the Federal Deposit Insurance Corporation. A Fund
                   may invest in obligations of U.S. branches or subsidiaries
                   of foreign banks ("Yankee dollar obligations") or foreign
                   branches of U.S. banks ("Eurodollar obligations");
               (3) commercial paper rated in the two highest rating categories
                   by at least two NRSROs, or, if rated by only one NRSRO, in
                   such agency's two highest grades, or, if unrated, deter-
                   mined to be of comparable quality by the Adviser or a Port-
                   folio Manager;
               (4) corporate obligations with a remaining maturity of 397 days
                   or less whose issuers have outstanding short-term debt ob-
                   ligations rated in the highest rating category by at least
                   two NRSROs, or, if rated by only one NRSRO, in such
                   agency's highest grade, or, if unrated, determined to be of
                   comparable quality by the Adviser or a Portfolio Manager;
                   and
               (5)repurchase agreements with domestic commercial banks or reg-
               istered broker-dealers.
 
 
Mortgage-   The Renaissance and Innovation Funds may invest in mortgage-re-
RelatedAnd  lated securities, and in other asset-backed securities (unrelated
OtherAsset- to mortgage loans) that are offered to investors currently or in
Backed      the future. The value of some mortgage-related or asset-backed se-
Securities  curities in which the Funds invest may be particularly sensitive
            to changes in prevailing interest rates, and, like other fixed in-
            come investments, the ability of a Fund to successfully utilize
            these instruments may depend in part upon the ability of the Port-
            folio Manager to forecast interest rates and other economic fac-
            tors correctly.
 
            Mortgage Pass-Through Securities are securities representing in-
            terests in "pools" of mortgage loans secured by residential or
            commercial real property in which payments of both interest and
            principal on the securities are generally made monthly, in effect
            "passing through" monthly payments made by the individual borrow-
            ers on the mortgage loans which underlie the securities (net of
            fees paid to the issuer or guarantor of the securities). Early re-
            payment of principal on some mortgage-related securities (arising
            from prepayments of principal due to sale of the underlying prop-
            erty, refinancing, or foreclosure, net of fees and costs which may
            be incurred) may expose a Fund to a lower rate of return upon re-
            investment of principal. Also, if a security subject to prepayment
            has been purchased at a premium, the value of the premium would be
            lost in the event of prepayment. Like other fixed income securi-
            ties, when interest rates rise, the value of a mortgage-related
            security generally will decline; however, when interest rates are
            declining, the value of mortgage-related securities with prepay-
            ment features may not increase as much as other fixed income secu-
            rities. The rate of prepayments on underlying mortgages will af-
            fect the price and volatility of a mortgage-related security, and
            may have the effect of shortening or extending the effective matu-
            rity of the security beyond what was anticipated at the time of
            purchase. To the extent that unanticipated rates of prepayment on
            underlying mortgages increase the effective maturity of a mort-
            gage-related security, the volatility of such security can be ex-
            pected to increase.
 

14  PIMCO Funds: Multi-Manager Series
<PAGE>
 

               Payment of principal and interest on some mortgage pass-through
            securities (but not the market value of the securities themselves)
            may be guaranteed by the full faith and credit of the U.S. Govern-
            ment (in the case of securities guaranteed by the Government Na-
            tional Mortgage Association ("GNMA")); or guaranteed by agencies
            or instrumentalities of the U.S. Government (in the case of secu-
            rities guaranteed by the Federal National Mortgage Association
            ("FNMA") or the Federal Home Loan Mortgage Corporation ("FHLMC"),
            which are supported only by the discretionary authority of the
            U.S. Government to purchase the agency's obligations). Mortgage-
            related securities created by non-governmental issuers (such as
            commercial banks, savings and loan institutions, private mortgage
            insurance companies, mortgage bankers and other secondary market
            issuers) may be supported by various forms of insurance or guaran-
            tees, including individual loan, title, pool and hazard insurance
            and letters of credit, which may be issued by governmental enti-
            ties, private insurers or the mortgage poolers.
 
            Collateralized Mortgage Obligations ("CMOs") are hybrid mortgage-
            related instruments. Similar to a bond, interest and pre-paid
            principal on a CMO are paid, in most cases, on a monthly basis.
            CMOs may be collateralized by whole mortgage loans but are more
            typically collateralized by portfolios of mortgage pass-through
            securities guaranteed by GNMA, FHLMC, or FNMA. CMOs are structured
            into multiple classes, with each class bearing a different stated
            maturity. Monthly payments of principal, including prepayments,
            are first returned to investors holding the shortest maturity
            class; investors holding the longer maturity classes receive prin-
            cipal only after the first class has been retired. CMOs that are
            issued or guaranteed by the U.S. Government or by any of its agen-
            cies or instrumentalities will be considered U.S. Government secu-
            rities by a Fund, while other CMOs, even if collateralized by U.S.
            Government securities, will have the same status as other pri-
            vately issued securities for purposes of applying a Fund's diver-
            sification tests.
 
            Commercial Mortgage-Backed Securities include securities that re-
            flect an interest in, and are secured by, mortgage loans on com-
            mercial real property. The market for commercial mortgage-backed
            securities developed more recently and in terms of total outstand-
            ing principal amount of issues is relatively small compared to the
            market for residential single-family mortgage-backed securities.
            Many of the risks of investing in commercial mortgage-backed secu-
            rities reflect the risks of investing in the real estate securing
            the underlying mortgage loans. These risks reflect the effects of
            local and other economic conditions on real estate markets, the
            ability of tenants to make loan payments, and the ability of a
            property to attract and retain tenants. Commercial mortgage-backed
            securities may be less liquid and exhibit greater price volatility
            than other types of mortgage-related or asset-backed securities.
 
            Mortgage-Related Securities include securities other than those
            described above that directly or indirectly represent a participa-
            tion in, or are secured by and payable from, mortgage loans on
            real property, such as CMO residuals or stripped mortgage-backed
            securities ("SMBS"), and may be structured in classes with rights
            to receive varying proportions of principal and interest.
               A common type of SMBS will have one class receiving some of the
            interest and most of the principal from the mortgage assets, while
            the other class will receive most of the interest and the remain-
            der of the principal. In the most extreme case, one class will re-
            ceive all of the interest (the interest-only, or "IO" class),
            while the other class will receive all of the principal (the prin-
            cipal-only, or "PO" class). The yield to maturity on an IO class
            is extremely sensitive to the rate of principal payments (includ-
            ing prepayments) on the related underlying mortgage assets, and a
            rapid rate of principal payments may have a material adverse ef-
            fect on a Fund's yield to maturity from these securities. For a
            discussion of the characteristics of some of these instruments,
            see the Statement of Additional Information.
 
 
Convertible
Securities  Many of the Funds may invest in convertible securities. Convert-
            ible securities are generally preferred stocks or fixed income se-
            curities that are convertible into common stock at either a stated
            price or a stated rate. The price of the convertible security will
            normally vary in some proportion to changes in the price of the
            underlying common stock because of this conversion feature. A con-
            vertible security will normally also provide a fixed income
            stream. For this reason, the convertible security may not decline
            in price as rapidly as the underlying common stock.
 

                                             April   , 1999 Prospectus       15


<PAGE>
 

               A Fund's Portfolio Manager will select convertible securities
            to be purchased by the Fund based primarily upon its evaluation of
            the fundamental investment characteristics and growth prospects of
            the issuer of the security. As a fixed income security, a convert-
            ible security tends to increase in market value when interest
            rates decline and to decrease in value when interest rates rise.
            While convertible securities generally offer lower interest or
            dividend yields than non-convertible fixed income securities of
            similar quality, their value tends to increase as the market value
            of the underlying stock increases and to decrease when the value
            of the underlying stock decreases.
               The Renaissance Fund may invest in so-called "synthetic con-
            vertible securities," which are composed of two or more different
            securities whose investment characteristics, taken together, re-
            semble those of convertible securities. For example, the Renais-
            sance Fund may purchase a non-convertible debt security and a war-
            rant or option. The synthetic convertible differs from the true
            convertible security in several respects. Unlike a true convert-
            ible security, which is a single security having a unitary market
            value, a synthetic convertible comprises two or more separate se-
            curities, each with its own market value. Therefore, the "market
            value" of a synthetic convertible is the sum of the values of its
            fixed income component and its convertible component. For this
            reason, the values of a synthetic convertible and a true convert-
            ible security may respond differently to market fluctuations.
 
 
Risks of    The Renaissance Fund may invest a portion of its assets in fixed
High Yield  income securities rated lower than Baa by Moody's or lower than
Securities  BBB by S&P but rated at least B by Moody's or S&P or, if not rat-
("Junk      ed, determined by the Portfolio Manager to be of comparable quali-
Bonds")     ty. In addition, the Renaissance Fund may invest in convertible
            securities rated below B by Moody's or S&P (or, if unrated, con-
            sidered by the Portfolio Manager to be of comparable quality). Se-
            curities rated lower than Baa by Moody's or lower than BBB by S&P
            are sometimes referred to as "high yield" or "junk" bonds. Invest-
            ors should consider the risks associated with high yield securi-
            ties before investing in this Fund. Although the Renaissance Fund
            reserves the right to do so at any time, as of the date of this
            Prospectus, it does not invest or have the present intention to
            invest more than 5% of its assets in high yield securities or junk
            bonds.
               Investing in high yield securities involves special risks in
            addition to the risks associated with investments in higher rated
            fixed income securities. While offering a greater potential oppor-
            tunity for capital appreciation and higher yields than investments
            in higher rated debt securities, high yield securities typically
            entail greater potential price volatility and may be less liquid
            than investment grade debt. High yield securities may be regarded
            as predominately speculative with respect to the issuer's continu-
            ing ability to meet principal and interest payments. Analysis of
            the creditworthiness of issuers of high yield securities may be
            more complex than for issuers of higher quality debt securities,
            and achievement of a Fund's investment objective may, to the ex-
            tent of its investments in high yield securities, depend more
            heavily on the Portfolio Manager's creditworthiness analysis than
            would be the case if the Fund were investing in higher quality se-
            curities. High yield securities may be more susceptible to real or
            perceived adverse economic and competitive industry conditions
            than higher grade securities.
               For additional discussion of the characteristics of lower rated
            fixed income securities, see the Statement of Additional Informa-
            tion. Ratings assigned to fixed income securities are described in
            the Appendix to the Statement of Additional Information.
 
 
Derivative  To the extent permitted by the investment objective and policies
Instruments of each Fund, a Fund may purchase and write call and put options
            on securities, securities indexes and foreign currencies, and en-
            ter into futures contracts and use options on futures contracts as
            further described below. In pursuit of their investment objec-
            tives, the Renaissance, Tax-Efficient Equity and Innovation Funds
            may engage in the purchase and writing of call and put options on
            securities and securities indexes and enter into futures contracts
            and options thereon, including securities index futures contracts
            and options thereon. The Funds that may invest in foreign-currency
            denominated securities may engage in the purchase and writing of
            call and put options on foreign currencies. The Funds may (but are
            not required to) use these techniques to hedge against changes in
            interest rates, foreign currency exchange rates or securities
            prices. Each Fund will
 

16  PIMCO Funds: Multi-Manager Series
<PAGE>
 

            segregate assets determined to be liquid by the Adviser or a Port-
            folio Manager in accordance with procedures established by the
            Board of Trustees (or, as permitted by applicable regulation, en-
            ter into certain offsetting positions) to cover its obligations
            under options and futures to limit leveraging of the Fund.
               Derivative instruments are considered for these purposes to
            consist of securities or other instruments whose value is derived
            from or related to the value of some other instrument or asset,
            and not to include those securities whose payment of principal
            and/or interest depend upon cash flows from underlying assets,
            such as mortgage-related or asset-backed securities. See "Mort-
            gage-Related and Other Asset-Backed Securities." The value of some
            derivative instruments in which the Funds may invest may be par-
            ticularly sensitive to changes in prevailing interest rates, and,
            like the other investments of the Funds, the ability of a Fund to
            successfully utilize these instruments may depend in part upon the
            ability of the Portfolio Manager to forecast interest rates and
            other economic factors correctly. If the Portfolio Manager incor-
            rectly forecasts such factors and has taken positions in deriva-
            tive instruments contrary to prevailing market trends, the Funds
            could be exposed to the risk of loss.
               The Funds might not employ any of the strategies described be-
            low, and no assurance can be given that any strategy used will
            succeed. If the Portfolio Manager incorrectly forecasts interest
            rates, market values or other economic factors in utilizing a de-
            rivatives strategy for a Fund, the Fund might have been in a bet-
            ter position if it had not entered into the transaction at all.
            Also, suitable derivative transactions may not be available in all
            circumstances. The use of these strategies involves certain spe-
            cial risks, including a possible imperfect correlation, or even no
            correlation, between price movements of derivative instruments and
            price movements of related investments. While some strategies in-
            volving derivative instruments can reduce the risk of loss, they
            can also reduce the opportunity for gain or even result in losses
            by offsetting favorable price movements in related investments or
            otherwise, due to the possible inability of a Fund to purchase or
            sell a portfolio security at a time that would be favorable or the
            possible need to sell a portfolio security at a disadvantageous
            time because the Fund is required to maintain asset coverage or
            offsetting positions in connection with transactions in derivative
            instruments, and the possible inability of a Fund to close out or
            to liquidate its derivatives positions. In addition, a Fund's use
            of such instruments may cause the Fund to realize higher amounts
            of short-term capital gains (generally taxed at ordinary income
            tax rates) than if it had not used such instruments.
 
            Options on Securities, Securities Indexes and Currencies Certain
            Funds may purchase put options on securities. One purpose of pur-
            chasing put options is to protect holdings in an underlying or re-
            lated security against a substantial decline in market value.
            These Funds may also purchase call options on securities. One pur-
            pose of purchasing call options is to protect against substantial
            increases in prices of securities the Fund intends to purchase
            pending its ability to invest in such securities in an orderly
            manner. A Fund may sell put or call options it has previously pur-
            chased, which could result in a net gain or loss depending on
            whether the amount realized on the sale is more or less than the
            premium and other transaction costs paid on the put or call option
            which is sold. A Fund may write a call or put option only if the
            option is "covered" by the Fund holding a position in the under-
            lying securities or by other means which would permit immediate
            satisfaction of the Fund's obligation as writer of the option.
            Prior to exercise or expiration, an option may be closed out by an
            offsetting purchase or sale of an option of the same series.
               The purchase and writing of options involves certain risks.
            During the option period, the covered call writer has, in return
            for the premium on the option, given up the opportunity to profit
            from a price increase in the underlying security above the exer-
            cise price, but, as long as its obligation as a writer continues,
            has retained the risk of loss should the price of the underlying
            security decline. The writer of an option has no control over the
            time when it may be required to fulfill its obligation as a writer
            of the option. Once an option writer has received an exercise no-
            tice, it cannot effect a closing purchase transaction in order to
            terminate its obligation under the option and must deliver the un-
            derlying security at the exercise price. If a put or call option
            purchased by the Fund is not sold when it has remaining value, and
            if the market price of the underlying security remains equal to or
            greater than the exercise price (in the case of a put), or remains
            less than or equal to the exercise price (in the case of a call),
            the Fund will lose its entire investment in the option. Also,
            where a put or call option on a particular security is purchased
            to hedge against
 

                                             April   , 1999 Prospectus       17

<PAGE>
 

            price movements in a related security, the price of the put or
            call option may move more or less than the price of the related
            security. There can be no assurance that a liquid market will ex-
            ist when a Fund seeks to close out an option position. Further-
            more, if trading restrictions or suspensions are imposed on the
            options markets, a Fund may be unable to close out a position.
               For each of the Renaissance and Innovation Funds, in the case
            of a written call option on a securities index, the Fund will own
            corresponding securities whose historic volatility correlates with
            that of the index.
               Over-the-counter options in which certain Funds may invest dif-
            fer from traded options in that they are two-party contracts, with
            price and other terms negotiated between buyer and seller, and
            generally do not have as much market liquidity as exchange-traded
            options. The Funds may be required to treat as illiquid over-the-
            counter options purchased and securities being used to cover cer-
            tain written over-the-counter options.
 
            Swap Agreements The Tax-Efficient Equity Fund may enter into eq-
            uity index swap agreements for purposes of gaining exposure to the
            stocks making up an index of securities without actually purchas-
            ing those stocks. Swap agreements are two-party contracts entered
            into primarily by institutional investors for periods ranging from
            a few weeks to more than one year. In a standard swap transaction,
            two parties agree to exchange the returns (or differentials in
            rates of return) earned or realized on particular predetermined
            investments or instruments, which may be adjusted for an interest
            factor. The gross returns to be exchanged or "swapped" between the
            parties are generally calculated with respect to a "notional
            amount," i.e., the return on or increase in value of a particular
            dollar amount invested at a particular interest rate, or in a
            "basket" of securities representing a particular index.
               Most swap agreements entered into by the Fund calculate the ob-
            ligations of the parties to the agreement on a "net basis." Conse-
            quently, the Fund's current obligations (or rights) under a swap
            agreement will generally be equal only to the net amount to be
            paid or received under the agreement based on the relative values
            of the positions held by each party to the agreement (the "net
            amount"). The Fund's current obligations under a swap agreement
            will be accrued daily (offset against amounts owed to the Fund),
            and any accrued but unpaid net amounts owed to a swap counterparty
            will be covered by the segregation of assets determined to be liq-
            uid by the Portfolio Manager in accordance with procedures estab-
            lished by the Board of Trustees to limit any potential leveraging
            of the Fund's portfolio. Obligations under swap agreements so cov-
            ered will not be construed to be "senior securities" for purposes
            of the Fund's investment restriction concerning senior securities.
            The Fund will not enter into a swap agreement with any single
            party if the net amount owed or to be received under existing con-
            tracts with that party would exceed 5% of the Fund's assets.
               Whether the Fund's use of swap agreements will be successful in
            furthering its investment objective will depend on the Portfolio
            Manager's ability to predict correctly whether certain types of
            investments are likely to produce greater returns than other in-
            vestments. Because they are two-party contracts and because they
            may have terms of greater than seven days, swap agreements may be
            considered to be illiquid investments. Moreover, the Fund bears
            the risk of loss of the amount expected to be received under a
            swap agreement in the event of the default or bankruptcy of a swap
            agreement counterparty. The Fund will enter into swap agreements
            only with counterparties that meet certain standards for credit-
            worthiness (generally, such counterparties would have to be eligi-
            ble counterparties under the terms of the Fund's repurchase agree-
            ment guidelines). The swaps market is a relatively new market and
            is largely unregulated. It is possible that developments in the
            swaps market, including potential government regulation, could ad-
            versely affect the Fund's ability to terminate existing swap
            agreements or to realize amounts to be received under such agree-
            ments.
 
            Futures Contracts and Options on Futures Contracts Certain Funds
            may enter into futures contracts and options thereon. These Funds
            may engage in such futures transactions as an adjunct to their se-
            curities activities.
               There are several risks associated with the use of futures and
            futures options for hedging purposes. There can be no guarantee
            that there will be a correlation between price movements in the
            hedging vehicle and in the portfolio securities being hedged. An
            incorrect correlation could result in a loss on both the hedged
            securities in a Fund and the
 

18  PIMCO Funds: Multi-Manager Series
<PAGE>
 


            hedging vehicle, so that the portfolio return might have been
            greater had hedging not been attempted. There can be no assurance
            that a liquid market will exist at a time when a Fund seeks to
            close out a futures contract or a futures option position. Most
            futures exchanges and boards of trade limit the amount of fluctua-
            tion permitted in futures contract prices during a single day;
            once the daily limit has been reached on a particular contract, no
            trades may be made that day at a price beyond that limit. In addi-
            tion, certain of these instruments are relatively new and without
            a significant trading history. As a result, there is no assurance
            that an active secondary market will develop or continue to exist.
            Lack of a liquid market for any reason may prevent a Fund from
            liquidating an unfavorable position, and the Fund would remain ob-
            ligated to meet margin requirements until the position is closed.
 
            Index Futures The Renaissance, Tax-Efficient Equity and Innovation
            Funds may purchase and sell futures contracts on various securi-
            ties indexes ("Index Futures") and related options for hedging
            purposes and for investment purposes. A Fund's purchase and sale
            of Index Futures is limited to contracts and exchanges which have
            been approved by the Commodity Futures Trading Commission
            ("CFTC").
               A Fund may close open positions on the futures exchanges on
            which Index Futures are traded at any time up to and including the
            expiration day. All positions which remain open at the close of
            the last business day of the contract's life are required to set-
            tle on the next business day (based upon the value of the relevant
            index on the expiration day), with settlement made with the appro-
            priate clearing house. Because the specific procedures for trading
            foreign stock Index Futures on futures exchanges are still under
            development, additional or different margin requirements as well
            as settlement procedures may be applicable to foreign stock Index
            Futures at the time a Fund purchases such instruments.
               Positions in Index Futures may be closed out by a Fund only on
            the futures exchange upon which the Index Futures are then traded.
            There can be no assurance that a liquid market will exist for any
            particular contract at any particular time. Also, the price of In-
            dex Futures may not correlate perfectly with movement in the rele-
            vant index due to certain market distortions. First, all partici-
            pants in the futures market are subject to margin deposit and
            maintenance requirements. Rather than meeting additional margin
            deposit requirements, investors may close futures contracts
            through offsetting transactions which could distort the normal re-
            lationship between the index and futures markets. Second, the de-
            posit requirements in the futures market are less onerous than
            margin requirements in the securities market, and as a result, the
            futures market may attract more speculators than does the securi-
            ties market. Increased participation by speculators in the futures
            market may also cause temporary price distortions. In addition,
            trading hours for foreign stock Index Futures may not correspond
            perfectly to hours of trading on the foreign exchange to which a
            particular foreign stock Index Future relates. This may result in
            a disparity between the price of Index Futures and the value of
            the relevant index due to the lack of continuous arbitrage between
            the Index Futures price and the value of the underlying index.
               The Funds may only enter into futures contracts or futures op-
            tions which are standardized and traded on a U.S. or foreign ex-
            change or board of trade, or similar entity, or quoted on an auto-
            mated quotation system. Each Fund may use financial futures con-
            tracts and related options only for "bona fide hedging" purposes,
            as such term is defined in applicable regulations of the CFTC, or,
            with respect to positions in financial futures and related options
            that do not qualify as "bona fide hedging" positions, may enter
            such positions only to the extent that aggregate initial margin
            deposits plus premiums paid by it for open futures option posi-
            tions, less the amount by which any such positions are "in-the-
            money," would not exceed 5% of the Fund's net assets.
 
 
Loans of
Portfolio   For the purpose of achieving income, each Fund may lend its port-
Securities  folio securities to brokers, dealers, and other financial institu-
            tions, provided:
               (i) the loan is secured continuously by collateral consisting
                   of U.S. Government securities, cash or cash equivalents
                   (negotiable certificates of deposit, bankers' acceptances
                   or letters of credit) maintained on a daily mark-to-market
                   basis in an amount at least equal to the current market
                   value of the securities loaned;
               (ii) the Fund may at any time call the loan and obtain the
                    return of the securities loaned;
               (iii) the Fund will receive any interest or dividends paid on
                     the loaned securities; and
               (iv) the aggregate market value of securities loaned will not
                    at any time exceed the Fund's limitation on lending its
                    portfolio securities.
 


                                             April   , 1999 Prospectus       19


<PAGE>
 

            Each Fund may purchase securities which it is eligible to purchase
            on a when-issued basis, may purchase and sell such securities for
            delayed delivery and may make contracts to purchase such securi-
            ties for a fixed price at a future date beyond normal settlement
            time (forward commitments). When-issued transactions, delayed de-
            livery purchases and forward commitments involve a risk of loss if
            the value of the securities declines prior to the settlement date,
            which risk is in addition to the risk of decline in the value of
            the Fund's other assets. Typically, no income accrues on securi-
            ties a Fund has committed to purchase prior to the time delivery
            of the securities is made, although a Fund may earn income on se-
            curities it has segregated.

Repurchase  For the purposes of maintaining liquidity and achieving income,
Agreements  each Fund may enter into repurchase agreements, which entail the
            purchase of a portfolio-eligible security from a bank or broker-
            dealer that agrees to repurchase the security at the Fund's cost
            plus interest within a specified time (normally one day). If the
            party agreeing to repurchase should default, as a result of bank-
            ruptcy or otherwise, the Fund will seek to sell the securities
            which it holds, which action could involve procedural costs or de-
            lays in addition to a loss on the securities if their value should
            fall below their repurchase price. Those Funds whose investment
            objectives do not include the earning of income will invest in re-
            purchase agreements only as a cash management technique with re-
            spect to that portion of the portfolio maintained in cash. Each
            Fund will limit its investment in repurchase agreements maturing
            in more than seven days consistent with the Fund's policy on in-
            vestment in illiquid securities.

Reverse     A reverse repurchase agreement may for some purposes be considered
Repurchase  borrowing that involves the sale of a security by a Fund and its
Agreements  agreement to repurchase the instrument at a specified time and
and Other   price. The Fund will segregate assets determined to be liquid by
Borrowings  the Adviser or Portfolio Manager in accordance with procedures es-
            tablished by the Board of Trustees to cover its obligations under
            reverse repurchase agreements. Reverse repurchase agreements will
            be subject to the Funds' limitations on borrowings. A Fund also
            may borrow money for investment purposes subject to any policies
            of the Fund currently described in this Prospectus or in the
            Statement of Additional Information. Such a practice will result
            in leveraging of a Fund's assets. Leverage will tend to exaggerate
            the effect on net asset value of any increase or decrease in the
            value of a Fund's portfolio and may cause a Fund to liquidate
            portfolio positions when it would not be advantageous to do so.

Portfolio   The length of time a Fund has held a particular security is not
Turnover    generally a consideration in investment decisions. The investment
            policies of a Fund may lead to frequent changes in the Fund's in-
            vestments, particularly in periods of volatile market movements. A
            change in the securities held by a Fund is known as "portfolio
            turnover." High portfolio turnover (e.g., over 100%) involves cor-
            respondingly greater expenses to a Fund, including brokerage com-
            missions or dealer mark-ups and other transaction costs on the
            sale of securities and reinvestments in other securities. See "Man-
                                                                                
 
20  PIMCO Funds: Multi-Manager Series
<PAGE>
 


            agement of the Trust--Portfolio Transactions." Such sales may re-
            sult in realization of taxable capital gains (including short-term
            capital gains which generally are taxed at ordinary income tax
            rates). See "Taxes." The portfolio turnover rates for the Funds
            (with the exception of the Tax-Efficient Equity Fund) were as fol-
            lows for fiscal 1998 and 1997, respectively: Equity Income--45%
            and 45%; Value--77% and 71%; Renaissance--192% and 131%; Capital
            Appreciation--75% and 87%; Mid-Cap Growth--66% and 82%; and Inno-
            vation--100% and 80%. The annual portfolio turnover rate for the
            Tax-Efficient Equity Fund is expected to be less than 40%.
 
 
Illiquid    Each Fund may invest in securities that are illiquid so long as no
Securities  more than 15% of the value of the Fund's net assets (taken at mar-
            ket value at the time of investment) would be invested in such se-
            curities. Certain illiquid securities may require pricing at fair
            value as determined in good faith under the supervision of the
            Board of Trustees. A Portfolio Manager may be subject to signifi-
            cant delays in disposing of illiquid securities, and transactions
            in illiquid securities may entail registration expenses and other
            transaction costs that are higher than those for transactions in
            liquid securities.
               The term "illiquid securities" for this purpose means securi-
            ties that cannot be disposed of within seven days in the ordinary
            course of business at approximately the amount at which a Fund has
            valued the securities. Illiquid securities are considered to in-
            clude, among other things, written over-the-counter options, secu-
            rities or other liquid assets being used as cover for such op-
            tions, repurchase agreements with maturities in excess of seven
            days, certain loan participation interests, fixed time deposits
            which are not subject to prepayment or provide for withdrawal pen-
            alties upon prepayment (other than overnight deposits), securities
            that are subject to legal or contractual restrictions on resale
            (such as privately placed debt securities), and other securities
            which legally or in the Adviser's or a Portfolio Manager's opinion
            may be deemed illiquid (not including securities issued pursuant
            to Rule 144A under the Securities Act of 1933 and certain commer-
            cial paper that the Adviser or a Portfolio Manager has determined
            to be liquid under procedures approved by the Board of Trustees).
 
 
Credit and  All fixed income securities are subject to market risk and credit
Market Risk risk. Market risk relates to market-induced changes in a
of          security's value, usually as a result of changes in interest
FixedIncome rates. The value of a Fund's investments in fixed income securi-
Securities  ties will change as the general level of interest rates fluctuate.
            During periods of falling interest rates, the value of a Fund's
            fixed income securities generally rise. Conversely, during periods
            of rising interest rates, the value of a Fund's fixed income secu-
            rities generally decline. Credit risk relates to the ability of
            the issuer to make payments of principal and interest.
 
 
Service     Many of the services provided to the Funds depend on the smooth
Systems --  functioning of computer systems. Many systems in use today cannot
Year 2000   distinguish between the year 1900 and the year 2000. Should any of
Problem     the service systems fail to process information properly, that
            could have an adverse impact on the Funds' operations and services
            provided to shareholders. The Adviser, Distributor, Shareholder
            Servicing and Transfer Agent, Custodian, and certain other service
            providers to the Funds have reported that each is working toward
            mitigating the risks associated with the so-called "year 2000
            problem." However, there can be no assurance that the problem will
            be corrected in all respects and that the Funds' operations and
            services provided to shareholders will not be adversely affected
            nor can there be any assurance that the year 2000 problem will not
            have an adverse effect on the entities whose securities are held
            by the Funds or on domestic or global equity markets or economies,
            generally.
 
 
"Fundamental"
Policies
            The investment objective of each of the Renaissance, Tax-Efficient
            Equity and Innovation Funds described in this Prospectus may be
            changed by the Board of Trustees without shareholder approval. The
            investment objective of each other Fund is fundamental and may not
            be changed without shareholder approval by vote of a majority of
            the outstanding shares of that Fund. If there is a change in a
            Fund's investment objective, including a change approved by share-
            holder vote, shareholders should consider whether the Fund remains
            an appropriate investment in light of their then current financial
            position and needs.
 

                                             April   , 1999 Prospectus       21
<PAGE>
 
 
            Performance Information
 
            From time to time the Trust may make available certain information
            about the performance of the Class D shares of some or all of the
            Funds. Information about a Fund's performance is based on that
            Fund's (or its predecessor's) record to a recent date and is not
            intended to indicate future performance.
               The total return of Class D shares of all Funds may be included
            in advertisements or other written material. When a Fund's total
            return is advertised with respect to its Class D shares, it will
            be calculated for the past year, the past five years, and the past
            ten years (or if the Fund has been offered for a period shorter
            than one, five or ten years, that period will be substituted)
            since the establishment of the Fund or its predecessor series of
            PIMCO Advisors Funds, as more fully described in the Statement of
            Additional Information. For periods prior to the initial offering
            date of Class D shares, total return presentations for the class
            will be based on the historical performance of an older class of
            the Fund (if any) restated, as necessary, to reflect that there
            are no sales charges associated with Class D shares. The older
            class to be used in each case is set forth in the Statement of Ad-
            ditional Information. For these purposes, the performance of the
            older class will also be restated to reflect any different operat-
            ing expenses (such as different administrative fees and/or 12b-
            1/servicing fee charges) associated with Class D shares. In cer-
            tain cases, such a restatement will result in Class D performance
            which is higher than if the performance of the older class were
            not restated to reflect the different Class D operating expenses.
            In such cases, the Trust's advertisements will also, to the extent
            appropriate, show the lower performance figure reflecting the ac-
            tual operating expenses incurred by the older class for periods
            prior to the initial offering date of Class D shares. Total return
            is measured by comparing the value of an investment in Class D
            shares of the Fund at the beginning of the relevant period to the
            redemption value of the investment in Class D shares of the Fund
            at the end of the period (assuming immediate reinvestment of any
            dividends or capital gains distributions at net asset value). To-
            tal return may be advertised using alternative methods that re-
            flect all elements of return, but that may be adjusted to reflect
            the cumulative impact of alternative fee and expense structures,
            such as the currently effective advisory and administrative fees
            for Class D shares of the Funds.
               Quotations of yield for Class D shares of a Fund will be based
            on the investment income per share (as defined by the Securities
            and Exchange Commission) during a particular 30-day (or one-month)
            period (including dividends and interest), less expenses accrued
            during the period ("net investment income"), and will be computed
            by dividing net investment income by the maximum public offering
            price per Class D share on the last day of the period.
               The Funds may also provide current distribution information to
            its shareholders in shareholder reports or other shareholder com-
            munications, or in certain types of sales literature provided to
            prospective investors. Current distribution information for Class
            D shares of a Fund will be based on distributions for a specified
            period (i.e., total dividends from net investment income), divided
            by the net asset value per Class D share on the last day of the
            period and annualized. The rate of current distributions does not
            reflect deductions for unrealized losses from transactions in de-
            rivative instruments such as options and futures, which may reduce
            total return. Current distribution rates differ from standardized
            yield rates in that they represent what Class D shares of a Fund
            have declared and paid to shareholders as of the end of a speci-
            fied period rather than the Fund's actual net investment income
            for that period.
               The Adviser and each Portfolio Manager may also report to
            shareholders or to the public in advertisements concerning its
            performance as adviser to clients other than the Funds, and on its
            comparative performance or standing in relation to other money
            managers. Such comparative information may be compiled or provided
            by independent ratings services or by news organizations. Any per-
            formance information, whether related to the Funds, the Adviser or
            the Portfolio Managers, should be considered in light of the
            Funds' investment objectives and policies, characteristics and
            quality of the Funds, and the market conditions during the time
            period indicated, and should not be considered to be representa-
            tive of what may be achieved in the future.
               Investment results of the Funds will fluctuate over time, and
            any representation of the Funds' total return or yield for any
            prior period should not be considered as a representation of what
            an investor's total return or yield may be in any future period.
 
 
22  PIMCO Funds: Multi-Manager Series
<PAGE>
 
            How to Buy Shares
 
            Class D shares of each Fund are continuously offered through fi-
            nancial service firms, such as broker-dealers or registered in-
            vestment advisers, with which the Trust's principal underwriter,
            PIMCO Funds Distributors LLC (the "Distributor"), has an agreement
            for the use of the Funds in particular investment products, pro-
            grams or accounts for which a fee may be charged. See "Financial
            Service Firms" below.
               You may purchase Class D shares only through your financial
            service firm. In connection with purchases, your financial service
            firm is responsible for forwarding all necessary documentation to
            the Distributor, and may charge you for such services. Investors
            who wish to purchase shares of the Funds directly from the Trust
            or the Distributor should inquire as to the other classes of
            shares. See "Description of the Trust--Multiple Classes of
            Shares."
               Class D shares may be purchased at a price equal to their net
            asset value per share next determined after receipt of an order.
            Purchase payments for Class D shares are fully invested at the net
            asset value next determined after acceptance of the trade. All
            purchase orders received by the Distributor from your financial
            service firm prior to the close of regular trading (normally 4:00
            p.m., Eastern time) on the New York Stock Exchange (the "Ex-
            change"), on a regular business day, are processed at that day's
            offering price. In addition, orders received by the Distributor
            from financial service firms after the offering price is deter-
            mined that day will receive such offering price if the orders were
            received by the firm from its customer prior to such determination
            and were transmitted to and received by the Distributor prior to
            its close of business that day (normally 7:00 p.m., Easterm time).
            Purchase orders received on other than a regular business day will
            be executed on the next succeeding regular business day.
               The Distributor, in its sole discretion, may accept or reject
            any order for purchase of Fund shares. The sale of shares will be
            suspended during any period in which the Exchange is closed for
            other than weekends or holidays, or if permitted by the rules of
            the Securities and Exchange Commission, when trading on the Ex-
            change is restricted or during an emergency which makes it imprac-
            ticable for the Funds to dispose of their securities or to deter-
            mine fairly the value of their net assets, or during any other pe-
            riod as permitted by the Securities and Exchange Commission for
            the protection of investors.
               Class D shares of the Funds will be held in your account with
            your financial service firm and, generally, your firm will hold
            your Class D shares in nominee or street name as your agent. Ac-
            cordingly, in most cases, the Trust's transfer agent will have no
            information with respect to or control over accounts of specific
            Class D shareholders and you may obtain information about your ac-
            counts only through your financial service firm. In certain cir-
            cumstances, your firm may arrange to have your shares held in your
            own name or you may subsequently become a holder of record for
            some other reason (for instance, if you terminate your relation-
            ship with your firm). In such circumstances, please contact the
            Distributor at 1-888-87-PIMCO for information about your account.
            If you wish to invest in the Funds through your own account with
            the Trust or the Distributor, please inquire as to the other clas-
            ses of shares of the Funds. See "Description of the Trust--Multi-
            ple Classes of Shares." In the interest of economy and conve-
            nience, certificates for Class D shares will not be issued.
 
Financial 
Service   
Firms     
            Broker-dealers, registered investment advisers and other financial
            service firms provide varying investment products, programs or ac-
            counts, pursuant to arrangements with the Distributor, through
            which their clients may purchase and redeem Class D shares of the
            Funds. Firms will generally provide or arrange for the provision
            of some or all of the shareholder servicing and account mainte-
            nance services required by your account, including, without limi-
            tation, transfers of registration and dividend payee changes; and
            may perform functions such as generation of confirmation state-
            ments and disbursement of cash dividends. Firms may also arrange
            with their clients for other investment or administrative servic-
            es. Your firm may independently establish and charge you transac-
            tion fees and/or other additional amounts for such services, which
            charges could reduce your investment returns on Class D shares of
            the Funds.
               Your financial service firm may have omnibus accounts and simi-
            lar arrangements with the Trust and may be paid for providing sub-
            transfer agency and other services. A firm may be paid for its
            services directly or indirectly by
 
                                               
                                              April   , 1999 Prospectus   23    
<PAGE>
 
            the Funds, the Adviser or an affiliate (normally not to exceed an
            annual rate of 0.35% of a Fund's average daily net assets attrib-
            utable to its Class D shares and purchased through such firm for
            its clients). Your firm may establish various minimum investment
            requirements for Class D shares of the Funds and may also estab-
            lish certain privileges with respect to purchases, redemptions and
            exchanges of Class D shares or the reinvestment of dividends.
               This Prospectus should be read in connection with your firm's
            materials regarding its fees and services.
                   
       
       
            Exchange Privilege
 
            A shareholder may exchange Class D shares of any Fund for Class D
            shares of any other Fund in an account with identical registration
            on the basis of their respective net asset values. Class D shares
            of each Fund may also be exchanged for Class D shares of certain
            series of PIMCO Funds: Pacific Investment Management Series, an
            affiliated mutual fund family composed primarily of fixed income
            portfolios managed by Pacific Investment Management Company, an
            affiliate of the Adviser. There are currently no exchange fees or
            charges imposed by the Trust, although your financial service firm
            may impose various fees and charges, investment minimums and other
            requirements with respect to exchanges. Please contact your finan-
            cial service firm for details. An exchange will constitute a tax-
            able sale for federal income tax purposes.
               The Trust reserves the right to refuse exchange purchases if,
            in the judgment of the Adviser, the purchase would adversely af-
            fect a Fund and its shareholders. In particular, a pattern of ex-
            changes characteristic of "market-timing" strategies may be deemed
            by the Adviser to be detrimental to the Trust or a particular
            Fund. Currently, the Trust limits the number of "round trip" ex-
            changes an investor may make. An investor makes a "round trip" ex-
            change when the investor purchases shares of a particular Fund,
            subsequently exchanges those shares for shares of a different Fund
            and then exchanges back into the originally purchased Fund. The
            Trust has the right to refuse any exchange for any investor who
            completes (by making the exchange back into the shares of the
            originally purchased Fund) more than six round trip exchanges in
            any twelve-month period. Although the Trust has no current inten-
            tion of terminating or modifying the exchange privilege other than
            as set forth in the preceding sentence, it reserves the right to
            do so at any time. Except as otherwise permitted by Securities and
            Exchange Commission regulations, the Trust will give 60 days' ad-
            vance notice to your financial service firm of any termination or
            material modification of the exchange privilege. For further in-
            formation about exchange privileges, please contact your financial
            service firm.
 
            How to Redeem
 
            Class D shares may be redeemed through your financial service firm
            on any day the Exchange is open. Shares are redeemed at their net
            asset value next determined after a proper redemption request has
            been received from your firm. There is no charge by the Trust or
            the Distributor with respect to a redemption, although your finan-
            cial service firm may charge you for its services in processing
            your redemption request. Please contact your firm for details. If
            you are the holder of record of your Class D shares, you may con-
            tact the Distributor at 1-888-87-PIMCO for information regarding
            how to redeem your shares directly from the Trust.
               Your financial service firm is obligated to transmit your re-
            demption orders to the Distributor promptly and is responsible for
            ensuring that your redemption request is in proper form. Requests
            for redemption received by financial service firms prior to the
            close of regular trading (normally 4:00 p.m., Eastern time) on the
            Exchange on a regular business day and received by the Distributor
            prior to the close of the Distributor's business day will be con-
            firmed at the net asset value effective as of the closing of the
            Exchange on that day. Your financial service firm will be respon-
            sible for furnishing all necessary documentation to the Distribu-
            tor or the Trust's transfer agent and may charge you for its serv-
            ices. Redemption proceeds will be forwarded to your financial
            service firm as promptly as possible and in any event
 

24   PIMCO Funds: Multi-Manager Series
<PAGE>
 
            within seven days after the redemption request is received by the
            Distributor in good order. Under unusual circumstances, the Trust
            may suspend redemptions or postpone payment for more than seven
            days, as permitted by federal securities law.
 

Redemptions 
In Kind     
            The Trust agrees to redeem shares of each Fund solely in cash up
            to the lesser of $250,000 or 1% of the Fund's net assets during
            any 90-day period for any one shareholder. In consideration of the
            best interests of the remaining shareholders, the Trust reserves
            the right to pay any redemption proceeds exceeding this amount in
            whole or in part
            by a distribution in kind of securities held by a Fund in lieu of
            cash. Except for Funds with a tax-efficient management strategy,
            it is highly unlikely that shares would ever be redeemed in kind.
            When shares are redeemed in kind, the redeeming shareholder should
            expect to incur transaction costs upon the disposition of the se-
            curities received in the distribution.
 
            Distributor
 
            PIMCO Funds Distributors LLC (the "Distributor"), a wholly owned
            subsidiary of the Adviser, is the principal underwriter of the
            Trust's shares. Pursuant to a Distribution Agreement with the
            Trust, with respect to each Fund's Class D shares, the Distributor
            may bear various expenses, including the cost of printing and
            mailing prospectuses to persons other than current shareholders.
            The Distributor, located at 2187 Atlantic Street, Stamford, Con-
            necticut 06902, is a broker-dealer registered with the SEC.
 
            How Net Asset Value Is Determined
 
            The net asset value of Class D shares of each Fund of the Trust
            will be determined once on each day on which the Exchange is open
            (a "Business Day"), as of the close of regular trading (normally
            4:00 p.m., Eastern time) on the Exchange. Net asset value will not
            be determined on days on which the Exchange is closed.
               Portfolio securities and other assets for which market quota-
            tions are readily available are stated at market value. Fixed in-
            come securities are normally valued on the basis of quotations ob-
            tained from brokers and dealers or pricing services, which take
            into account appropriate factors such as institutional-sized trad-
            ing in similar groups of securities, yield, quality, coupon rate,
            maturity, type of issue, trading characteristics, and other market
            data. Certain fixed income securities for which daily market quo-
            tations are not readily available may be valued, pursuant to
            guidelines established by the Board of Trustees, with reference to
            fixed income securities whose prices are more readily obtainable
            and whose durations are comparable to the securities being valued.
            Short-term investments having a maturity of 60 days or less are
            valued at amortized cost, when the Board of Trustees determines
            that amortized cost is their fair value. Exchange- traded options,
            futures and options on futures are valued at the settlement price
            as determined by the appropriate clearing corporation. All other
            securities and assets are valued at their fair value as determined
            in good faith by the Trustees or by persons acting at their direc-
            tion.
               Quotations of foreign securities in foreign currency are con-
            verted to U.S. dollar equivalents using foreign exchange quota-
            tions received from independent dealers. Under the Trust's proce-
            dures, the prices of foreign securities are determined using in-
            formation derived from pricing services and other sources. Infor-
            mation that becomes known to the Trust or its agents after the
            time that net asset value is calculated on any Business Day may be
            assessed in determining net asset value per share after the time
            of receipt of the information, but will not be used to retroac-
            tively adjust the price of the security so determined earlier or
            on a prior day. Events affecting the values of portfolio securi-
            ties that occur between the time their prices are determined and
            the close of regular trading on the Exchange (normally 4:00 p.m.,
            Eastern time) may not be reflected in the calculation of net asset
            value. If events materially affecting the value of
 
                                              
                                             April   , 1999 Prospectus    25    
<PAGE>
 
            such securities occur during such period, then these securities
            may be valued at fair value as determined by the Adviser or a
            Portfolio Manager and approved in good faith by the Board of
            Trustees.
               Each Fund's liabilities are allocated among its classes. The
            total of such liabilities allocated to a class plus that class's
            distribution and/or servicing fees and any other expenses spe-
            cially allocated to that class are then deducted from the class's
            proportionate interest in the Fund's assets, and the resulting
            amount for each class is divided by the number of shares of that
            class outstanding to produce the class's "net asset value" per
            share. Generally, for Funds that pay income dividends, those divi-
            dends are expected to differ over time by approximately the amount
            of the expense accrual differential between a particular Fund's
            classes.
 
            Distributions
 
            Shares begin earning dividends on the day after the date that
            funds are received by the Trust for the purchase of Class D
            shares. Net investment income from interest and dividends, if any,
            will be declared and paid quarterly to shareholders of record by
            the Equity Income, Value and Renaissance Funds. Net investment
            income from interest and dividends, if any, will be declared and
            paid at least annually to shareholders of record by the Tax-
            Efficient Equity, Capital Appreciation, Mid-Cap Growth and
            Innovation Funds. Any net capital gains from the sale of portfolio
            securities will be distributed no less frequently than once
            annually. Net short-term capital gains may be paid more
            frequently.
               All dividends and/or distributions will be paid in the form of
            additional Class D shares of the Fund to which the dividends
            and/or distributions relate or, at the election of the sharehold-
            er, of another Fund or other series of the Trust or of PIMCO
            Funds: Pacific Investment Management Series as described below, at
            net asset value, unless the shareholder elects to receive cash
            (either paid to shareholders directly or credited to their account
            with their financial services firm). If a shareholder has elected
            to receive dividends and/or capital gain distributions in cash and
            the postal or other delivery service is unable to deliver checks
            to the shareholder's address of record, such shareholder's distri-
            butions will automatically be invested in the Money Market Fund of
            PIMCO Funds: Pacific Investment Management Series, until such
            shareholder is located. Dividends paid by each Fund with respect
            to each class of shares are calculated in the same manner and at
            the same time.
               Your financial service firm may offer a program pursuant to
            which you may elect to invest dividends and/or distributions paid
            by any Fund in Class D shares of any other Fund or series of PIMCO
            Funds: Pacific Investment Management Series which offers Class D
            shares. Please contact your financial service firm for details.
 
            Taxes
 
            Each Fund intends to qualify as a regulated investment company an-
            nually and to elect to be treated as a regulated investment com-
            pany under the Internal Revenue Code of 1986, as amended (the
            "Code"). As such, a Fund generally will not pay federal income tax
            on the income and gains it pays as dividends to its shareholders.
            In order to avoid a 4% federal excise tax, each Fund intends to
            distribute each year substantially all of its net income and
            gains.
               Shareholders subject to U.S. federal income tax will be subject
            to tax on dividends received from a Fund, regardless of whether
            received in cash or reinvested in additional shares. Distributions
            received by tax-exempt shareholders generally will not be subject
            to federal income tax to the extent permitted under applicable tax
            law. All shareholders must treat dividends, other than capital
            gain dividends, exempt-interest dividends and dividends that rep-
            resent a return of capital to shareholders, as ordinary income. In
            particular, distributions derived from short-term gains will be
            treated as ordinary income. Dividends designated by a Fund as cap-
            ital gain dividends derived from the Fund's net capital gains
            (that is, the excess of its net long-term capital gains over its
            net short-term capital losses) are
 
     
26   PIMCO Funds: Multi-Manager Series
<PAGE>
 
            taxable to shareholders as long-term capital gain (generally sub-
            ject to a 20% tax rate) except as provided by an applicable tax
            exemption. Any distributions that are not from a Fund's net in-
            vestment income or net capital gain may be characterized as a re-
            turn of capital to shareholders or, in some cases, as capital
            gain. Certain dividends declared in October, November or December
            of a calendar year are taxable to shareholders (who otherwise are
            subject to tax on dividends) as though received on December 31 of
            that year if paid to shareholders during January of the following
            calendar year. Each Fund will advise shareholders annually of the
            amount and nature of the dividends paid to them. Dividends derived
            from interest on certain U.S. Government securities may be exempt
            from state and local taxes, although interest on mortgage-backed
            U.S. Government securities is generally not so exempt. While the
            Tax-Efficient Equity Fund seeks to minimize taxable distributions,
            the Fund may be expected to earn and distribute taxable income and
            may also be expected to realize and distribute capital gains from
            time to time.
               Current federal tax law requires the holder of a U.S. Treasury
            or other fixed income zero-coupon security to accrue as income
            each year a portion of the discount at which the security was pur-
            chased, even though the holder receives no interest payment in
            cash on the security during the year. In addition, pay-in-kind se-
            curities will give rise to income which is required to be distrib-
            uted and is taxable even though the Fund holding the security re-
            ceives no interest payment in cash on the security during the
            year. Also, a portion of the yield on certain high yield securi-
            ties (including certain pay-in-kind securities) issued after July
            10, 1989 may be treated as dividends. Accordingly, each Fund that
            holds the foregoing kinds of securities may be required to pay out
            as an income distribution each year an amount which is greater
            than the total amount of cash interest the Fund actually received.
            Such distributions may be made from the cash assets of the Fund or
            by liquidation of portfolio securities, if necessary. The Fund may
            realize gains or losses from such liquidations. In the event the
            Fund realizes net capital gains from such transactions, its share-
            holders may receive a larger capital gain distribution, if any,
            than they would in the absence of such transactions.
               Taxable shareholders should note that the timing of their in-
            vestment or redemptions could have undesirable tax consequences.
            Dividends and distributions on a Fund's shares are generally sub-
            ject to federal income tax as described herein to the extent they
            do not exceed the Fund's realized income and gains, even though
            such dividends and distributions may economically represent a re-
            turn of a particular shareholder's investment. Such distributions
            are likely to occur in respect of shares purchased at a time when
            the Fund's net asset value reflects gains that are either
            unrealized or realized but not distributed. Such realized gains
            may be required to be distributed even when a Fund's net asset
            value also reflects unrealized losses. If shares are redeemed be-
            fore payment of an exempt-interest dividend, shareholders may re-
            alize a taxable capital gain, whereas by waiting and receiving the
            exempt-interest dividend, a portion of their share value would
            have been received in the form of tax-free income.
               The preceding discussion relates only to federal income tax;
            the consequences under other tax laws may differ. Shareholders
            should consult their tax advisers as to the possible application
            of foreign, state and local income tax laws to Trust dividends and
            capital gain distributions. For additional information relating to
            the tax aspects of investing in a Fund, see the Statement of Addi-
            tional Information.
 
            Management of the Trust
 
            The business affairs of the Trust are managed under the direction
            of the Board of Trustees. Information about the Trustees and the
            Trust's executive officers may be found in the Statement of Addi-
            tional Information under the heading "Management of the Trust."
 
Investment
Adviser
               
            PIMCO Advisors serves as investment adviser to the Funds pursuant
            to an investment advisory agreement with the Trust. PIMCO Advisors
            is a Delaware limited partnership organized in 1987. PIMCO Advi-
            sors provides investment management and advisory services to pri-
            vate accounts of institutional and individual clients and to mu-
            tual funds. Total assets under management by PIMCO Advisors and
            its subsidiary partnerships as of December 31, 1998 were     
 
                                                
                                              April   , 1999 Prospectus   27    

<PAGE>
 
               
            approximately $244.2 billion. The general partners of PIMCO Advi-
            sors are PIMCO Partners, G.P. and PIMCO Advisors Holdings L.P.
            ("PAH"). PIMCO Partners, G.P. is a general partnership between
            PIMCO Holding LLC, a Delaware limited liability company and an in-
            direct wholly-owned subsidiary of Pacific Life Insurance Company,
            and PIMCO Partners LLC, a California limited liability company
            controlled by the current Managing Directors and two former Manag-
            ing Directors of Pacific Investment Management Company. PIMCO
            Partners, G.P. is the sole general partner of PAH. PIMCO Advisors
            is governed by a Management Board, which exercises substantially
            all of the governance powers of the general partner and serves as
            the functional equivalent of a board of directors. PIMCO Advisors'
            address is 800 Newport Center Drive, Newport Beach, California
            92660. PIMCO Advisors is registered as an investment adviser with
            the Securities and Exchange Commission. PIMCO Advisors currently
            has seven subsidiary investment adviser partnerships, the follow-
            ing four of which manage one or more of the Funds: Cadence, Colum-
            bus Circle, NFJ and Parametric.     
               Under the investment advisory agreement, PIMCO Advisors, sub-
            ject to the supervision of the Board of Trustees, is responsible
            for providing advice and guidance with respect to the Funds and
            for managing, either directly or through others selected by the
            Adviser, the investment of the Funds. PIMCO Advisors also fur-
            nishes to the Board of Trustees periodic reports on the investment
            performance of each Fund.
 
Portfolio 
Managers  
               
            Pursuant to portfolio management agreements, PIMCO Advisors em-
            ploys separate firms to serve as Portfolio Managers for the Funds,
            except that the PIMCO Equity Advisors Division of PIMCO Advisors
            manages the Innovation Fund. Each such firm is an affiliate of
            PIMCO Advisors. PIMCO Advisors (and not the Funds or the Trust)
            compensates the Portfolio Managers it retains from its advisory
            fee. Each Portfolio Manager has full investment discretion and
            makes all determinations with respect to the investment of a
            Fund's assets and makes all determinations respecting the purchase
            and sale of a Fund's securities and other investments. If a sepa-
            rate firm ceases to serve as Portfolio Manager for a Fund, PIMCO
            Advisors will either assume full responsibility for the management
            of that Fund, or retain a new portfolio manager subject to the ap-
            proval of the Trustees and, if required, the Fund's shareholders.
                   
            PIMCO Equity Advisors Division of PIMCO Advisors manages the Inno-
            vation Fund. Information about PIMCO Advisors is provided above
            under "Investment Adviser."     
               
               Dennis P. McKechnie, a Portfolio Manager at the PIMCO Equity
            Advisors Division, has primary responsibility for the day-to-day
            portfolio management of the Innovation Fund. He previously shared
            responsibility for the Fund as a Portfolio Manager at Columbus
            Circle. Mr. McKechnie has 8 years' investment management experi-
            ence. He received his bachelor's degree from Purdue University and
            his MBA from Columbia University.     
               
            Cadence manages the Capital Appreciation and Mid-Cap Growth Funds
            (the "Cadence Funds"). Cadence is an investment management firm
            organized as a general partnership. Cadence has two partners:
            PIMCO Advisors as the supervisory partner, and Cadence Capital
            Management Inc. as the managing partner. Cadence Capital Manage-
            ment Corporation, the predecessor investment adviser to Cadence,
            commenced operations in 1988. Accounts managed by Cadence had com-
            bined assets as of December 31, 1998 of approximately $7.4 bil-
            lion. Cadence's address is Exchange Place, 53 State Street, Bos-
            ton, Massachusetts 02109. Cadence is registered as an investment
            adviser with the Securities and Exchange Commission.     
               David B. Breed, William B. Bannick, Katherine A. Burdon and Pe-
            ter B. McManus are primarily responsible for the day-to-day man-
            agement of the Cadence Funds. Mr. Breed is a Managing Director,
            the Chief Executive Officer, and a founding partner of Cadence,
            and has 25 years' investment management experience. He has been
            the driving force in developing the firm's growth-oriented stock
            screening and selection process and has been with Cadence or its
            predecessor since its inception. Mr. Breed graduated from the Uni-
            versity of Massachusetts and received his MBA from the Wharton
            School of Business. He is a Chartered Financial Analyst. Mr.
            Bannick is a Managing Director and Executive Vice President of Ca-
            dence and has 13 years' investment management experience. He pre-
            viously served as Executive
 
     
28   PIMCO Funds: Multi-Manager Series
<PAGE>
 
            Vice President of George D. Bjurman & Associates and as Supervis-
            ing Portfolio Manager of Trinity Investment Management Corpora-
            tion. Mr. Bannick joined the predecessor of Cadence in 1992. He
            graduated from the University of Massachusetts and received his
            MBA from Boston University. Mr. Bannick is a Chartered Financial
            Analyst. Ms. Burdon is a Managing Director and Portfolio Manager
            of Cadence and has 10 years' investment management experience. She
            previously served as a Vice President and Portfolio Manager of The
            Boston Company. Ms. Burdon joined the predecessor of Cadence in
            1993. She graduated from Stanford University and received a Master
            of Science degree from Northeastern University. Ms. Burdon is a
            Chartered Financial Analyst and Certified Public Accountant. Mr.
            McManus is Director of Fund Management of Cadence and has 21
            years' investment management experience. He previously served as a
            Vice President of Bank of Boston. Mr. McManus joined Cadence in
            1994. He graduated from the University of Massachusetts, and he is
            certified as a Financial Planner.
               
            NFJ manages the Equity Income and Value Funds. NFJ is an invest-
            ment management firm organized as a general partnership. NFJ has
            two partners: PIMCO Advisors as the supervisory partner, and NFJ
            Management Inc. as the managing partner. NFJ Investment Group,
            Inc., the predecessor investment adviser to NFJ, commenced opera-
            tions in 1989. Accounts managed by NFJ had combined assets as of
            December 31, 1998 of approximately $2.4 billion. NFJ's address is
            2121 San Jacinto, Suite 1840, Dallas, Texas 75201. NFJ is regis-
            tered as an investment adviser with the Securities and Exchange
            Commission.     
               Chris Najork and Benjamin Fischer are responsible for the day-
            to-day management of the Equity Income Fund. Mr. Najork is a Man-
            aging Director and a founding partner of NFJ and has 30 years' ex-
            perience encompassing equity research and portfolio management. He
            received his bachelor's degree and MBA from Southern Methodist
            University, and he is a Chartered Financial Analyst. Mr. Fischer
            is a Managing Director and a founding partner of NFJ and has 32
            years' experience encompassing equity research and portfolio man-
            agement. He received his bachelor's degree and JD from Oklahoma
            University and his MBA from New York University Graduate School of
            Business. He is a Chartered Financial Analyst. Messrs. Najork and
            Fischer and Paul A. Magnuson are primarily responsible for the
            day-to-day management of the Value Fund. Mr. Magnuson, a research
            analyst at NFJ, has 13 years' experience in equity research and
            portfolio management. He received his bachelor's degree in Finance
            from the University of Nebraska-Lincoln.
               
            Columbus Circle manages the Renaissance Fund. Columbus Circle is
            an investment management firm organized as a general partnership.
            Columbus Circle has two partners: PIMCO Advisors as the supervi-
            sory partner, and Columbus Circle Investors Management Inc. as the
            managing partner. Columbus Circle Investors Division of Thomson
            Advisory Group L.P. ("TAG"), the predecessor investment adviser to
            Columbus Circle, commenced operations in 1975. Accounts managed by
            Columbus Circle had combined assets as of December 31, 1998 of ap-
            proximately $9.6 billion. Columbus Circle's address is Metro Cen-
            ter, One Station Place, 8th Floor, Stamford, Connecticut 06902.
            Columbus Circle is registered as an investment adviser with the
            Securities and Exchange Commission.     
               
               At the center of Columbus Circle's equity investment strategy
            is its theory of Positive Momentum & Positive Surprise. This the-
            ory asserts that a good company doing better than generally ex-
            pected will experience a rise in its stock price, and conversely,
            a company falling short of expectations will experience a drop in
            its stock price. Based on this theory, Columbus Circle attempts to
            manage the Renaissance Fund with a view to investing in growing
            companies that are surprising the market with business results
            that are better than anticipated.     
               
               Investment decisions made by Columbus Circle are generally made
            by one or more committees, although Clifford G. Fox has primary
            responsibility for the day-to-day management of the Renaissance
            Fund. Mr. Fox, a Managing Director of Columbus Circle, has 17
            years of investment management experience. He received his bache-
            lor's degree from the University of Pennsylvania and his MBA from
            New York University, and he is a Chartered Financial Analyst. An-
            thony Rizza and Dennis P. McKechnie are primarily responsible for
            the day-to-day management of the Innovation Fund. Mr. Rizza, a
            Managing Director of Columbus Circle, has 12 years of investment
            management experience. He received his bachelor's degree from the
            University of Connecticut, and he is a Chartered Financial     
 
                                                
                                              April   , 1999 Prospectus   29    
<PAGE>
 

            Analyst. Mr. McKechnie, a research analyst at Columbus Circle, has
            7 years of investment management experience. He received his bach-
            elor's degree from Purdue University and his MBA from Columbia
            University.
 
            Parametric manages the Tax-Efficient Equity Fund. Parametric is an
            investment management firm organized as a general partnership.
            Parametric has two partners: PIMCO Advisors as the supervisory
            partner, and Parametric Man-
            |
               
            agement Inc. as the managing partner. Parametric Portfolio Associ-
            ates, Inc., the predecessor investment adviser to Parametric, com-
            menced operations in 1987. Accounts managed by Parametric had com-
            bined assets as of December 31, 1998 of approximately $3.4 bil-
            lion. Parametric's address is 7310 Columbia Center, 701 Fifth Ave-
            nue, Seattle, Washington 98104-7090. Parametric is registered as
            an investment adviser with the Securities and Exchange Commission
            and as a commodity trading adviser with the CFTC.     
               
               David Stein, Tom Seto and Cliff Quisenberry are primarily re-
            sponsible for the day-to-day management of the Tax-Efficient Eq-
            uity Fund. Mr. Stein is a Managing Director of Parametric and has
            been associated with Parametric since June 1996. He also directs
            research and product development for Parametric. Mr. Stein gradu-
            ated with bachelor's and master's degrees in Applied Mathematics
            from the University of Witwatersrand, South Africa, and received a
            Ph.D. in Applied Mathematics from Harvard University. Prior to
            joining Parametric, Mr. Stein served as the Director of Investment
            Research at GTE Investment Management, Director of Active Equity
            Strategies at the Vanguard Group, and Director of Quantitative
            Portfolio Management and Research at IBM. Mr. Seto is a Vice Pres-
            ident of Parametric and has 7 years of experience in managing
            structured equity portfolios. Prior to joining Parametric, he
            served as the Head of U.S. Equity Index Investments at Barclays
            Global Investors. Mr. Seto graduated from the University of Wash-
            ington with a bachelor's degree in Electrical Engineering, and
            from the University of Chicago with an MBA in Finance. Mr.
            Quisenberry, a Vice President of Parametric, has 9 years experi-
            ence as a portfolio manager and has been with Parametric since
            1994. He previously served as a Vice President and Portfolio Man-
            ager at Cutler & Co., and as a Security Analyst and Portfolio Man-
            ager at Fred Alger Management. Mr. Quisenberry graduated from Yale
            University with a bachelor's degree in Economics. He is a Chart-
            ered Financial Analyst.     
 
            Registration as an investment adviser with the Securities and Ex-
            change Commission does not involve supervision by the Securities
            and Exchange Commission over investment advice, and registration
            with the CFTC as a commodity trading adviser does not involve su-
            pervision by the CFTC over commodities trading. The portfolio man-
            agement agreements are not exclusive, and Columbus Circle, Ca-
            dence, NFJ and Parametric may provide, and currently are provid-
            ing, investment management services to other clients, including
            other investment companies.
 
Fund
Administrator
            PIMCO Advisors also serves as administrator (the "Administrator")
            for the Funds' Class D shares pursuant to an administration agree-
            ment with the Trust. The Administrator provides or procures admin-
            istrative services for Class D shareholders of the Funds, which
            include clerical help and accounting, bookkeeping, internal audit
            services and certain other services required by the Funds, and
            preparation of reports to the Funds' shareholders and regulatory
            filings. The Administrator has retained Pacific Investment Manage-
            ment Company, its affiliate, to provide such services as sub-ad-
            ministrator. The Administrator and/or the sub-administrator may
            also retain other affiliates to provide certain of these services.
            In addition, the Administrator, at its own expense, arranges for
            the provision of legal, audit, custody, transfer agency (including
            sub-transfer agency and other administrative services) and other
            services necessary for the ordinary operation of the Funds, and is
            responsible for the costs of registration of the Trust's shares
            and the printing of prospectuses and shareholder reports for cur-
            rent shareholders.
               PIMCO Advisors or an affiliate may pay financial service firms
            a portion of the Class D administration fees in return for the
            firms' services (normally not to exceed an annual rate of .35% of
            a Fund's average daily net assets attributable to Class D shares
            purchased through such firms). The Funds' administration agreement
            includes a plan for Class D shares that has been adopted in con-
            formity with the requirements set forth in Rule 12b-1 under the
            1940 Act. The plan provides that up to .25% per annum of the Class
            D administrative fees paid under the administration agree-
 


30  PIMCO Funds: Multi-Manager Series
<PAGE>
 
            ment may represent reimbursement for expenses in respect of activ-
            ities that may be deemed to be primarily intended to result in the
            sale of Class D shares. The principal types of activities for
            which such payments may be made are services in connection with
            the distribution of Class D shares and/or the provision of share-
            holder services.
               The Funds (and not the Administrator) are responsible for the
            following expenses: (i) salaries and other compensation of any of
            the Trust's executive officers and employees who are not officers,
            directors, stockholders, or employees of PIMCO Advisors, Pacific
            Investment Management Company, or their subsidiaries or affili-
            ates; (ii) taxes and governmental fees; (iii) brokerage fees and
            commissions and other portfolio transaction expenses; (iv) the
            costs of borrowing money, including interest expenses; (v) fees
            and expenses of the Trustees who are not "interested persons" of
            the Adviser, any Portfolio Manager, or the Trust, and any counsel
            retained exclusively for their benefit; (vi) extraordinary ex-
            penses, including costs of litigation and indemnification ex-
            penses; (vii) expenses which are capitalized in accordance with
            generally accepted accounting principles; and (viii) any expenses
            allocated or allocable to a specific class of shares, and may in-
            clude certain other expenses as permitted by the Trust's Multiple
            Class Plan adopted pursuant to Rule 18f-3 under the 1940 Act, sub-
            ject to review and approval by the Trustees.
 
 
            The Funds feature fixed advisory and administrative fees. For pro-
            viding or arranging for the provision of investment advisory serv-
            ices to the Funds as described above, PIMCO Advisors receives
            monthly fees from each Fund at an annual rate based on the average
            daily net assets of the Fund as follows:
Advisory
and
Administrative
Fees
 
 
<TABLE>
<CAPTION>
                                   Advisory
           Fund                    Fee Rate
           --------------------------------
           <S>                     <C>
           Equity Income, Value,
            Tax-Efficient Equity,
            Capital Appreciation
            and Mid-Cap Growth
            Funds                  .45%
           --------------------------------
           Renaissance Fund        .60%
           --------------------------------
           Innovation Fund         .65%
</TABLE>
 
 
               For providing or procuring administrative services to the Funds
            as described above, the Administrator receives monthly fees from
            each Fund at an annual rate based on the average daily net assets
            attributable to the Fund's Class D shares as follows:
 
 
<TABLE>
<CAPTION>
                                                   Administrative
                                                   Fee Rate*
           ------------------------------------------------------
           <S>                                     <C>
           All Funds                               .65%
</TABLE>
 
            * As described under "Fund Administrator," the administration
            agreement includes a plan adopted in conformity with Rule 12b-1
            which provides for the payment of up to .25% of the .65% Adminis-
            trative Fee Rate as reimbursement for expenses in respect of ac-
            tivities that may be deemed to be primarily intended to result in
            the sale of Class D shares. The "Annual Fund Operating Expenses"
            table on page 4 of this Prospectus shows the .65% Administrative
            Fee Rate under two separate columns entitled "Administrative Fees"
            (.40%) and "12b-1 (Service) Fees" (.25%).
 
               The investment advisory, administration and sub-administration
            agreements for the Funds may be terminated by the Trustees, or by
            PIMCO Advisors or Pacific Investment Management Company (as the
            case may be) on 60 days' written notice. In addition, the invest-
            ment advisory agreement may be terminated with regard to the Re-
            naissance and Innovation Funds by a majority of the Trustees that
            are not interested persons of the Trust, PIMCO Advisors or Pacific
            Investment Management Company (as the case may be) on 60 days'
            written notice. Following their initial terms, the agreements will
            continue from year-to-year if approved by the Trustees.
               
               Pursuant to the portfolio management agreements between the Ad-
            viser and the Portfolio Managers listed below, PIMCO Advisors (and
            not the Funds or the Trust) pays each Portfolio Manager a fee
            based on a percentage of the average daily net assets of the noted
            Fund as follows: Columbus Circle--.38% for the Renaissance Fund;
                   
                
                                            
                                             April   , 1999 Prospectus    31    
<PAGE>
 

               
            Cadence--.35% for the Capital Appreciation Fund and .35% for the
            Mid-Cap Growth Fund; NFJ--.35% for the Equity Income Fund and .35%
            for the Value Fund; and Parametric--.35% for the Tax-Efficient Eq-
            uity Fund. PIMCO Advisors does not retain a separate firm to serve
            as Portfolio Manager for the Innovation Fund, and retains all of
            the advisory fees it earns from that Fund.     
 
Portfolio      
TransactionsThe Adviser or, pursuant to the portfolio management agreements, a
            Portfolio Manager, places orders for the purchase and sale of
            portfolio investments for a Fund's accounts with brokers or deal-
            ers selected by it in its discretion. In effecting purchases and
            sales of portfolio securities for the accounts of the Funds, the
            Adviser and the Portfolio Managers will seek the best price and
            execution of the Fund's orders. In doing so, a Fund may pay higher
            commission rates than the lowest available when the Adviser or
            Portfolio Manager believes it is reasonable to do so in light of
            the value of the brokerage and research services provided by the
            broker effecting the transaction. The Adviser and Portfolio Manag-
            ers also may consider sales of shares of the Trust as a factor in
            the selection of broker-dealers to execute portfolio transactions
            for the Trust.     
               
               Some securities considered for investment by the Funds may also
            be appropriate for other clients served by the Adviser or a Port-
            folio Manager. If a purchase or sale of securities consistent with
            the investment policies of a Fund and one or more of these clients
            is considered at or about the same time, transactions in such se-
            curities will be allocated among the Fund and clients in a manner
            deemed fair and reasonable by the Adviser or Portfolio Manager.
            Particularly when investing in less liquid or illiquid securities
            of smaller capitalization companies, such allocation may take into
            account the asset size of a Fund in determining whether the allo-
            cation of an investment is suitable. As a result, larger Funds may
            become more concentrated in more liquid securities than smaller
            Funds or private accounts of the Adviser or a Portfolio Manager
            pursuing a small capitalization investment strategy, which could
            adversely affect performance. The Adviser or a Portfolio Manager
            may aggregate orders for the Funds with simultaneous transactions
            entered into on behalf of its other clients so long as price and
            transaction expense are averaged either for the particular trans-
            action or for that day.     
 
            Description of the Trust
 
Capitalization
            The Trust was organized as a Massachusetts business trust on Au-
            gust 24, 1990, and currently consists of twenty-eight portfolios
            that are operational, seven of which are described in this Pro-
            spectus. Other portfolios may be offered by means of a separate
            prospectus. The Board of Trustees may establish additional portfo-
            lios in the future. The capitalization of the Trust consists of an
            unlimited number of shares of beneficial interest. When issued,
            shares of the Trust are fully paid, non-assessable and freely
            transferable.
               Under Massachusetts law, shareholders could, under certain cir-
            cumstances, be held liable for the obligations of the Trust. How-
            ever, the Second Amended and Restated Agreement and Declaration of
            Trust (the "Declaration of Trust") of the Trust disclaims share-
            holder liability for acts or obligations of the Trust and requires
            that notice of such disclaimer be given in each agreement, obliga-
            tion or instrument entered into or executed by the Trust or the
            Trustees. The Declaration of Trust also provides for indemnifica-
            tion out of a Fund's property for all loss and expense of any
            shareholder of that Fund held liable on account of being or having
            been a shareholder. Thus, the risk of a shareholder incurring fi-
            nancial loss on account of shareholder liability is limited to
            circumstances in which such disclaimer is inoperative or the Fund
            of which he or she is or was a shareholder is unable to meet its
            obligations, and thus should be considered remote.
 
Multiple
Classesof
Shares
            In addition to Class D shares, certain Funds also offer up to five
            additional classes of shares, Class A, Class B, Class C, Institu-
            tional Class and Administrative Class shares, through separate
            prospectuses. This Prospectus relates only to Class D shares of
            the Funds. Unlike Class D shares, which may be purchased only
            through financial service firms, the other classes may be pur-
            chased directly from the Trust and/or the Distributor. The other
            classes may be subject to sales
 

32  PIMCO Funds: Multi-Manager Series
<PAGE>
 
            charges and different levels of operating expenses than Class D
            shares. As a result of different charges and expense levels, the
            other five classes are expected to achieve different investment
            returns than Class D shares. Shareholders of a particular class
            may also receive additional services or services different from
            those received by the other classes. To obtain more information
            about Class A, Class B and Class C shares, please call the Dis-
            tributor at 1-800-426-0107. To obtain more information about In-
            stitutional Class and Administrative Class shares, please call 1-
            800-927-4648.
               Each class of shares of each Fund represents interests in the
            assets of that Fund, and each class has identical dividend, liqui-
            dation and other rights and the same terms and conditions, except
            that expenses related to the distribution and shareholder servic-
            ing of a particular class of shares are borne solely by such class
            and each class may, at the Trustees' discretion, also pay a dif-
            ferent share of other expenses, not including advisory or custo-
            dial fees or other expenses related to the management of the
            Trust's assets, if these expenses are actually incurred in a dif-
            ferent amount by that class, or if the class receives services of
            a different kind or to a different degree than the other classes.
            All other expenses are allocated to each class on the basis of the
            net asset value of that class in relation to the net asset value
            of the particular Fund.
 
Voting      Each class of shares of each Fund has identical voting rights, ex-
            cept that each class of shares has exclusive voting rights on any
            matter submitted to shareholders that relates solely to that
            class, and has separate voting rights on any matter submitted to
            shareholders in which the interests of one class differ from the
            interests of any other class. Each class of shares has exclusive
            voting rights with respect to matters pertaining to any distribu-
            tion and servicing plan or agreement applicable only to that
            class. These shares are entitled to vote at meetings of sharehold-
            ers. Matters submitted to shareholder vote must be approved by
            each Fund separately except (i) when required by the 1940 Act
            shares shall be voted together and (ii) when the Trustees have de-
            termined that the matter does not affect all Funds, then only
            shareholders of the Fund or Funds affected shall be entitled to
            vote on the matter. All classes of shares of a Fund will vote to-
            gether, except with respect to a distribution and servicing plan
            or agreement applicable to a class of shares or when a class vote
            is required as specified above or otherwise by the 1940 Act.
            Shares are freely transferable, are entitled to dividends as de-
            clared by the Trustees and, in liquidation of the Trust, are enti-
            tled to receive the net assets of their Fund, but not of the other
            Funds. The Trust does not generally hold annual meetings of share-
            holders and will do so only when required by law. Shareholders may
            remove Trustees from office by votes cast in person or by proxy at
            a meeting of shareholders or by written consent. Such a meeting
            will be called at the written request of the holders of 10% of the
            Trust's outstanding shares.
               
               Shares entitle their holders to one vote per share (with
            proportionate voting for fractional shares). As of March   , 1999,
            the following was a shareholder of record of at least 25% of the
            outstanding voting securities of the indicated Fund: [Note: To be
            updated in a Post-Effective Amendment filed prior to the effective
            date of this Amendment.] PIMCO Advisors L.P. (Newport Beach,
            California), the Trust's investment adviser and administrator,
            with respect to the Tax-Efficient Equity Fund. As used in this
            Prospectus, the phrase "vote of a majority of the outstanding
            shares" of a Fund (or the Trust) means the vote of the lesser of:
            (1) 67% of the shares of the Fund (or the Trust) present at a
            meeting, if the holders of more than 50% of the outstanding shares
            are present in person or by proxy; or (2) more than 50% of the
            outstanding shares of the Fund (or the Trust).     
 
                                               
                                               April   , 1999 Prospectus  33    
                                                                              
<PAGE>
 
PIMCO  
Funds: 
Multi- 
Manager
Series  
            --------------------------------------------------------------------
            INVESTMENT ADVISER AND ADMINISTRATOR
 
            PIMCO Advisors L.P., 800 Newport Center Drive, Newport Beach, CA
            92660
            --------------------------------------------------------------------
            PORTFOLIO MANAGERS
               
            PIMCO Equity Advisors Division of PIMCO Advisors L.P., Cadence
            Capital Management, Columbus Circle Investors, NFJ Investment
            Group, Parametric Portfolio Associates     
            --------------------------------------------------------------------
            DISTRIBUTOR
 
            PIMCO Funds Distributors LLC, 2187 Atlantic Street, Stamford, CT
            06902
            --------------------------------------------------------------------
            CUSTODIAN
 
            Investors Fiduciary Trust Company, 801 Pennsylvania, Kansas City,
            MO 64105
            --------------------------------------------------------------------
            SHAREHOLDER SERVICING AGENT AND TRANSFER AGENT
               
            First Data Investor Services Group, Inc., P.O. Box 9688,
            Providence, RI 02940     
            --------------------------------------------------------------------
            INDEPENDENT ACCOUNTANTS
 
            PricewaterhouseCoopers LLP, 1055 Broadway, Kansas City, MO 64105
            --------------------------------------------------------------------
            LEGAL COUNSEL
 
            Ropes & Gray, One International Place, Boston, MA 02110
            --------------------------------------------------------------------
            For further information about the PIMCO Funds, call 1-888-87-PIMCO
            or visit our Web site at www.pimcofunds.com.
<PAGE>
 
                           PIMCO FUNDS IS ON THE WEB

                              www.pimcofunds.com


A PARTIAL LIST OF WHAT'S AVAILABLE:

DAILY MANAGER COMMENTARY

FUND MANAGER BIOS

CURRENT AND HISTORICAL FUND PERFORMANCE

LIPPER RANKINGS

MORNINGSTAR RATINGS

LISTING OF FUND PORTFOLIO HOLDINGS

RISK ANALYSIS

DAILY SHARE PRICES

RESOURCES FOR INVESTMENT PROFESSIONALS

(GRAPHIC APPEARS HERE)

PIMCO Funds Distributors LLC is pleased to announce the launch of its Web site.
We can be found on the Worldwide Web at www.pimcofunds.com.

You now have around-the-clock access to the most timely and comprehensive 
information available on all of the PIMCO Funds. In addition, the site includes 
daily commentary from our fund managers, with insights on the economy and other 
factors affecting the stock and bond markets.

(GRAPHIC APPEARS HERE)

You'll find the site to be informative and easy-to-use. There are several 
functions that can help you navigate your way around the site. Among the major 
sections are Investment Insight and Fund Information.

(GRAPHIC APPEARS HERE)

INVESTMENT INSIGHT

The Investment Insight section provides an overview of six of the investment 
management firms which are part of PIMCO Advisors L.P. You'll find an 
explanation of each firm's investment process, biographies of the investment 
team, manager updates and more.

(GRAPHIC APPEARS HERE)

FUND INFORMATION

In the Fund Information section you'll access profiles of all the PIMCO Funds. 
Some include a summary of each fund's portfolio, risk analysis data, Lipper 
rankings and Morningstar ratings. You an also obtain daily fund share prices. 
And now we provide current and historical performance for Class D shares.

QUESTIONS?

We're sure you will find the PIMCO Funds Web site to be an invaluable tool. If 
you have any comments or questions about the site, please call us today at 
1-888-87-PIMCO. Or, use the e-mail feature of the site to contact us.

Please read the relevant prospectus carefully before you invest in any PIMCO 
Fund.



                                                                           PIMCO
                                                                           -----
                                                                           FUNDS



PZ010.4/99
<PAGE>
 
                       PIMCO FUNDS: MULTI-MANAGER SERIES
    
                        Supplement Dated _________, 1999     
                                     to the
    
          Prospectus for Class D Shares dated April __, 1999     

                            Disclosure relating to:

                              PIMCO VALUE 25 FUND

- --------------------------------------------------------------------------------
    
Note: This document supplements the PIMCO Funds: Multi-Manager Series (the
- ----                                                                      
"Trust") Prospectus for Class D Shares dated April __, 1999 (the "Class D
Prospectus") which is included in Part A of this Registration Statement. 
     
- --------------------------------------------------------------------------------

1.   DATE OF THE PROSPECTUS.
    
     The date of the Prospectus is hereby amended to _______, 1999.      

2.   STATEMENT OF ADDITIONAL INFORMATION.
    
     The Trust's Statement of Additional Information, dated April __, 1999, as
amended or supplemented from time to time, is available free of charge by
writing to PIMCO Funds Distributors LLC (the "Distributor"), 2187 Atlantic
Street, Stamford, Connecticut, 06902, or by telephoning 888-87-PIMCO. The
Statement of Additional Information, which contains more detailed information
about the Trust, has been filed with the Securities and Exchange Commission and
is incorporated by reference into the Retail Prospectus.     

3.   NEW SERIES.

     The Trust intends to offer Class D Shares of a new series, PIMCO Value 25
Fund (the "Fund"). 

4.   SCHEDULE OF FEES. 
 
Shareholder Transaction Expenses:
- -------------------------------- 
 
 
Maximum initial sales charge imposed on purchases                     None
  (as a percentage of offering price at time of purchase)
 
Maximum sales charge imposed on reinvested dividends                  None
  (as a percentage of offering price at time of purchase)
 
Maximum deferred sales charge                                         None
  (as a percentage of original purchase price)

Exchange Fee                                                          None
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                                          EXAMPLE: You would pay the 
                                                                          following expenses on a  
CLASS D SHARES                        ANNUAL FUND                         $1,000 investment assuming
                                      OPERATING EXPENSES                  (1) 5% annual return and (2)
                                      (As a percentage of average net     without or without redemption
                                      assets):                            at the end of each time period:
- ---------------------------------------------------------------------------------------------------------
<S>                                   <C>                                 <C> 
                                                            TOTAL
                                   ADMINI-        12B-1     FUND
                        ADVISORY   STRATIVE     (SERVICE)   OPERATING 
FUND                      FEES      FEES/1/       FEES/1/   EXPENSES           1      3      5     10
                                                                              YEAR  YEARS  YEARS  YEARS
- --------------------------------------------------------------------------------------------------------- 
Value 25                   .50%       .40%        .25%       1.15%            $12    $37     -     -
- ---------------------------------------------------------------------------------------------------------
</TABLE>     

1.  The Fund's administration agreement includes a plan for Class D shares that
has been adopted in conformity with the requirements set forth in Rule 12b-1
under the Investment Company Act of 1940.  The plan provides that up to .25% per
annum of the total fees paid under the administration agreement may represent
reimbursement for expenses in respect of activities ("subject activities") that
may be deemed to be primarily intended to result in the sale of Class D shares.
The Fund will pay a total of .65% per annum under the administration agreement
regardless of whether a portion or none of the .25% authorized under the plan is
paid for subject services.  To the extent that any payments are deemed to be
made pursuant to the plan, the Fund intends to treat such payments as "service
fees" for purposes of applicable rules of the National Association of Securities
Dealers, Inc. (the "NASD").  See "Management of the Trust - Fund Administrator."
To the extent that such payments for subject activities are deemed not to be
"service fees," Class D shareholders may, depending on the length of time the
shares are held, pay more than the economic equivalent of the maximum front-end
sales charges permitted by relevant rules of the NASD.

The purpose of the foregoing tables is to assist investors in understanding the
various costs and expenses of the Trust that are borne directly or indirectly by
Class D shareholders of the Fund.  The information is based upon the Fund's
current fees and expenses. 

NOTE: THE FIGURES SHOWN IN THE EXAMPLES ARE ENTIRELY HYPOTHETICAL. THEY ARE NOT
REPRESENTATIONS OF PAST OR FUTURE PERFORMANCE OR EXPENSES; ACTUAL PERFORMANCE
AND/OR EXPENSES MAY BE MORE OR LESS THAN SHOWN.

5.   INVESTMENT OBJECTIVES AND POLICIES.

     The investment objective and general investment policies of the Fund are
described below. There can be no assurance that the investment objective of the
Fund will be achieved.  Because the market value of the Fund's investments will
change, the net asset value per share of the Fund also will vary.

     VALUE 25 FUND seeks long-term growth of capital and income.  The Fund
invests primarily in a portfolio of approximately 25 common stocks of companies
with medium market capitalizations and below-average P/E ratios relative to
their industry group.  In selecting securities, the Portfolio Manager classifies
a universe of more than 2000 stocks by industry, each of which has a minimum
market capitalization of $200 million.  The universe is then screened to find
stocks with the lowest P/E ratios in each industry, subject to application of
quality, earnings momentum and price momentum screens. Those stocks which pass
the screenings and satisfy the medium-cap size criteria are further analyzed.
Fundamental research is performed on the most undervalued companies.
Approximately 25 stocks, diversified across industries, are selected on an
equal-weighted basis for the Fund's portfolio.

                                      -2-
<PAGE>
 
Although quarterly rebalancing is a general rule, replacements are made whenever
an alternative stock has a significantly lower P/E ratio than the current Fund
holdings. Because the Fund concentrates on approximately 25 stocks at any one
time (and is not as diversified as many stock funds), it is intended for
aggressive investors seeking above-average capital gains and willing to accept
the greater risks associated therewith. The Portfolio Manager for the Value 25
Fund is NFJ Investment Group ("NFJ").

    
     The Fund's investment objective and, unless otherwise noted, its
restrictions and policies relating to the investment of its assets are non-
fundamental and may be changed without shareholder approval.  The annual
portfolio turnover rate for the Fund is expected to be less than 150%.     

                                      -3-
<PAGE>
 
6.   CHARACTERISTICS AND RISKS OF SECURITIES AND INVESTMENT TECHNIQUES.
    
     The securities and investment techniques and related risks applicable to
the Fund are described in the Trust's Prospectus for Institutional Class and
Administrative Class shares, dated April __, 1999 (the "Institutional
Prospectus"), which is filed herewith.     

7.   MANAGEMENT OF THE TRUST.

     Disclosure relating to PIMCO Advisors L.P., the Investment Advisor and
Administrator for each of the Funds, is included under the sub-headings
"Investment Advisor" and "Fund Administrator" under "Management of the Trust" in
the Class D Prospectus.

     NFJ manages the Value 25 Fund. Chris Najork, Benjamin Fischer and Cliff
Hoover are primarily responsible for the day-to-day management of the Fund.
Disclosure relating to NFJ and Messrs. Najork, Fischer and Hoover is included
under "Management of the Trust - Portfolio Managers - NFJ" in the Class D
Prospectus.     

                                      -4-
<PAGE>
 

     ADVISORY AND ADMINISTRATIVE FEES The Fund features fixed advisory and
administrative fees. For providing or arranging for the provision of investment
advisory services to the Fund, PIMCO Advisors L.P. receives monthly Advisory
Fees at the annual rate of .50%, based on the average daily net assets of the
Fund. Pursuant to the portfolio management agreement between PIMCO Advisors
L.P. and NFJ, PIMCO Advisors (and not the Fund or the Trust) pays NFJ fees at
the annual rate of .40% for the Value 25 Fund.

     For providing or procuring administrative services for the Fund as
described above, PIMCO Advisors L.P. (in its capacity as Administrator) receives
monthly Administrative Fees from the Fund at the following annual rate based on
the average daily net assets attributable to the Fund's Class D Shares: Value 25
Fund - .65%. The administration agreement includes a plan adopted in conformity
with Rule 12b-1 which provides for the payment of up to .25% of the .65%
Administrative Fee Rate as reimbursement for expenses in respect of activities
that may be deemed to be primarily intended to result in the sale of Class D
shares. The "Annual Fund Operating Expenses" table in Section 4 above shows the
 .65% Administrative Fee Rate under two separate columns entitled "Administrative
Fees" (.40%) and "12b-1 (Service) Fees" (.25%). 

8.   DISTRIBUTIONS.

     Net investment income from interest and dividends, if any, will be declared
and paid at least annually to shareholders of record by the Fund. 
 

                                      -5-
<PAGE>
 
                            PIMCO Funds Prospectus




    
Multi-Manager
Series                 GROWTH STOCK FUNDS         ENHANCED INDEX STOCK FUNDS
                       Growth Fund                Tax-Efficient Equity Fund
April __, 1999         Target Fund               
                       Opportunity Fund
Share Classes                                     INTERNATIONAL STOCK FUNDS
 A   B   C             BLEND STOCK FUNDS          International Fund
                       Capital Appreciation Fund
                       Mid-Cap Growth Fund        SECTOR-RELATED STOCK FUNDS
                                                  Innovation Fund
                       VALUE STOCK FUNDS          Precious Metals Fund
                       Equity Income Fund
                       Renaissance Fund           STOCK AND BONDS FUNDS
                       Value Fund                 Balanced Fund
                       Value 25 Fund            
                       Small-Cap Value Fund                                     






                                                                PIMCO
                                                               ------ 
                                                                FUNDS
<PAGE>
 
            PIMCO Funds: Multi-Manager Series
            Prospectus
               
            April   , 1999     
 
            PIMCO Funds: Multi-Manager Series (the "Trust") is an open-end se-
            ries management investment company offering fifteen separate di-
            versified investment portfolios (each a "Fund") in this Prospec-
            tus, each with different investment objectives and strategies. The
            address of PIMCO Funds: Multi-Manager Series is 840 Newport Center
            Drive, Suite 300, Newport Beach, CA 92660.
               
            Each Fund offers three classes of shares in this Prospectus: Class
            A shares (generally sold subject to an initial sales charge),
            Class B shares (sold subject to a contingent deferred sales
            charge) and Class C shares (sold subject to an asset based sales
            charge). Through separate prospectuses, certain Funds may offer up
            to three additional classes of shares, Class D, Institutional
            Class and Administrative Class shares. See "Alternative Purchase
            Arrangements."     
 
            This Prospectus concisely describes the information investors
            should know before investing in Class A, Class B and Class C
            shares of the Funds. Please read this Prospectus carefully and
            keep it for further reference.
 
            Information about the investment objective of each Fund, along
            with a detailed description of the types of securities in which
            each Fund may invest, and of investment policies and restrictions
            applicable to each Fund, are set forth in this Prospectus. There
            can be no assurance that the investment objective of any Fund will
            be achieved. Because the market value of each Fund's investments
            will change, the investment returns and net asset value per share
            of each Fund will vary.
               
            A Statement of Additional Information, dated April   , 1999, as
            amended or supplemented from time to time, is available free of
            charge by writing to PIMCO Funds Distributors LLC (the "Distribu-
            tor"), 2187 Atlantic Street, Stamford, Connecticut 06902, or by
            telephoning 1-800-426-0107. The Statement of Additional Informa-
            tion, which contains more detailed information about the Trust,
            has been filed with the Securities and Exchange Commission and is
            incorporated by reference in this Prospectus. The Securities and
            Exchange Commission maintains an Internet World Wide Web site (at
            www.sec.gov) which contains the Statement of Additional Informa-
            tion, materials that are incorporated by reference into this Pro-
            spectus and the Statement of Additional Information, and other in-
            formation about the Funds.     
 
            These securities have not been approved or disapproved by the Se-
            curities and Exchange Commission or any state securities commis-
            sion, nor has the Securities and Exchange Commission or any state
            securities commission passed upon the accuracy or adequacy of this
            Prospectus. Any representation to the contrary is a criminal of-
            fense.
 
            Shares of the Funds are not deposits or obligations of, or guaran-
            teed or endorsed by, any financial institution, and the shares are
            not federally insured by the Federal Deposit Insurance Corpora-
            tion, the Federal Reserve Board or any other agency, and involve
            risk, including the possible loss of principal.
 
 
 
              TABLE OF CONTENTS
 
<TABLE>
<S>                                   <C> 
PIMCO Funds Overview..................3
Schedule of Fees......................4
Financial Highlights..................8
Investment Objectives and Policies...18
Characteristics and Risks of Securities
 and Investment Techniques...........26
Performance Information..............38
How to Buy Shares....................39
Alternative Purchase Arrangements ...44
</TABLE>

<TABLE>   
<S>                                <C> 
Exchange Privilege.................52
How to Redeem......................53
Distributor and Distribution and
Servicing Plans....................57
How Net Asset Value Is Determined..59
Distributions......................60
Taxes..............................60
Management of the Trust............62
Description of the Trust...........68
Mailings to Shareholders...........69
</TABLE>    
 
2  PIMCO Funds: Multi-Manager Series

<PAGE>
 

            PIMCO Funds Overview
               
            PIMCO Advisors L.P. ("PIMCO Advisors" or the "Adviser") is the in-
            vestment adviser of all the Funds. PIMCO Advisors is one of the
            largest investment management firms in the U.S. As of December 31,
            1998, PIMCO Advisors and its subsidiary partnerships had approxi-
            mately $244.2 billion in assets under management. Each Fund has a
            sub-adviser (each a "Portfolio Manager") responsible for portfolio
            investment decisions, except that the PIMCO Equity Advisors Divi-
            sion of PIMCO Advisors (the "PIMCO Equity Advisors Division") man-
            ages the investments of the Growth, Target, Opportunity and Inno-
            vation Funds. Acting in this capacity, the PIMCO Equity Advisors
            Division is sometimes referred to in this Prospectus as a "Portfo-
            lio Manager." Each sub-adviser is an affiliate of PIMCO Advisors
            except for Van Eck Associates Corporation ("Van Eck"), an indepen-
            dent Portfolio Manager that advises the Precious Metals Fund. The
            other Portfolio Managers are listed below.     
 
<TABLE>   
<CAPTION>
                                                              Investment Specialty
              ------------------------------------------------------------------------------------------------------
           <C>                                                <S>
           Cadence Capital Management ("Cadence")             Stocks of growth companies that the Portfolio Manager
                                                              believes are trading at a reasonable price
                                    ------------------------------------------------------------------
           Columbus Circle Investors ("Columbus Circle")      Stocks, using its "Positive Momentum & Positive
                                                              Surprise" discipline
                                    ------------------------------------------------------------------
           NFJ Investment Group ("NFJ")                       Value stocks that the Portfolio Manager believes are
                                                              undervalued and/or offer above-average dividend yields
                                    ------------------------------------------------------------------
           Blairlogie Capital Management ("Blairlogie") (/1/) International stocks using Scottish standards of
                                                              prudent investment management with modern quantitative
                                                              analytical tools
                                    ------------------------------------------------------------------
           Pacific Investment Management Company              All sectors of the bond market using its total return
           ("Pacific Investment Management")                  philosophy--seeking both yield and capital
                                                              appreciation
                                    ------------------------------------------------------------------
           Parametric Portfolio Associates ("Parametric")     Stocks, using quantitatively-driven fundamental
                                                              analysis and economic methods, with a specialty in
                                                              tax-efficient products
                                    ------------------------------------------------------------------
           PIMCO Equity Advisors Division                     [Please provide description of Investment Specialty]
</TABLE>    
 
<TABLE>   
<CAPTION>
                            Fund Name         Investment Objective     Primary Investments (/2/)  Portfolio Manager
              --------------------------------------------------------------------------------------------------------
           <S>              <C>               <C>                      <C>                        <C>
           Growth           Growth            Long-term growth of      Common stocks of companies PIMCO Equity Advisors Division
           Stock Funds                        capital; income is       with market
                                              incidental               capitalizations of at
                                                                       least $5 billion
                     ---------------------------------------------------------------------------------------------
                            Target            Capital appreciation; no Common stocks of companies PIMCO Equity Advisors Division
                                              consideration given to   with between $1 billion
                                              income                   and $10 billion of market
                                                                       capitalizations
                     ---------------------------------------------------------------------------------------------
                            Opportunity (/3/) Capital appreciation; no Common stocks of companies PIMCO Equity Advisors Division
                                              consideration given to   with market
                                              income                   capitalizations of less
                                                                       than $2 billion
              --------------------------------------------------------------------------------------------------------
           Blend Stock      Capital           Growth of capital        Common stocks of companies Cadence
           Funds            Appreciation                               with market
                                                                       capitalizations of at
                                                                       least $1 billion that have
                                                                       improving fundamentals and
                                                                       whose stock is reasonably
                                                                       valued by the market
                     ---------------------------------------------------------------------------------------------
                            Mid-Cap           Growth of capital        Common stocks of companies Cadence
                            Growth                                     with market
                                                                       capitalizations in excess
                                                                       of $500 million that have
                                                                       improving fundamentals and
                                                                       whose stock is reasonably
                                                                       valued by the market
              --------------------------------------------------------------------------------------------------------
           Value Stock      Equity            Current income as a      Common stocks with below-  NFJ
           Funds            Income            primary objective; long- average price to earnings
                                              term growth of capital   ratios and higher dividend
                                              as a secondary objective yields relative to their
                                                                       industry groups
                     ---------------------------------------------------------------------------------------------
                            Renaissance       Long-term growth of      Common stocks with below-  Columbus Circle
                                              capital and income       average valuations that
                                                                       have improving business
                                                                       fundamentals
                     ---------------------------------------------------------------------------------------------
                            Value             Long-term growth of      Common stocks with below-  NFJ
                                              capital and income       average price to earnings
                                                                       ratios relative to their
                                                                       industry groups
                     ---------------------------------------------------------------------------------------------
                            Value 25          Long-term growth of      Approximately 25 common    NFJ
                                              capital and income       stocks of companies with
                                                                       medium market
                                                                       capitalizations that have
                                                                       below-average price to
                                                                       earnings ratios relative
                                                                       to their industry groups
                     ---------------------------------------------------------------------------------------------
                            Small-Cap         Long-term growth of      Common stocks of companies NFJ
                            Value             capital and income       with market
                                                                       capitalizations between
                                                                       $50 million and $1 billion
                                                                       and below-average price to
                                                                       earnings ratios relative
                                                                       to their industry groups
              --------------------------------------------------------------------------------------------------------
           Enhanced         Tax-Efficient     Maximum after-tax growth A broadly diversified      Parametric
           Index Stock      Equity            of capital               portfolio of at least 200
           Funds                                                       common stocks of companies
                                                                       with larger
                                                                       market capitalizations
              --------------------------------------------------------------------------------------------------------
           International    International     Capital appreciation;    Non-U.S. stocks of         Blairlogie (/1/)
           Stock Funds                        income is                companies with small,
                                              incidental               medium and large market
                                                                       capitalizations (developed
                                                                       and emerging markets)
              --------------------------------------------------------------------------------------------------------
           Sector-          Innovation        Capital appreciation; no Common Stocks of companies PIMCO Equity Advisors Division
           Related                            consideration given to   with small, medium and
           Stock Funds                        income                   large market
                                                                       capitalizations
                                                                       (technology-related
                                                                       stocks)
                     ---------------------------------------------------------------------------------------------
                            Precious          Capital appreciation; no U.S. and non-U.S. stocks   Van Eck
                            Metals            consideration given to   of companies with medium
                                              income                   and large market
                                                                       capitalizations (precious
                                                                       metals-related stocks)
              --------------------------------------------------------------------------------------------------------
           Stock and Bond   Balanced          Total return consistent  Common stocks, fixed       Cadence, NFJ and Pacific
           Funds                              with prudent investment  income securities and      Investment Management
                                              management               money market instruments
</TABLE>    
 
Fund
Profiles
               
            1. [On or about March 31, 1999, it is anticipated that PIMCO Advi-
            sors will sell substantially all of its ownership interest in
            Blairlogie. Subject to the approval of the shareholders of the In-
            ternational Fund, PIMCO Advisors has determined to continue to re-
            tain Blairlogie as Portfolio Manager of the Fund subsequent to the
            Blairlogie Transaction. See "Management of the Trust--Portfolio
            Managers--Blairlogie."]     
 
            2. For specific information concerning the market capitalizations
            of companies in which each Fund may invest and each Fund's invest-
            ment style, see "Investment Objectives and Policies" in this Pro-
            spectus.
            3. Except to the extent described under "How to Buy Shares--Re-
            strictions on Sales of and Exchanges for Shares of the Opportunity
            Fund," the Opportunity Fund is closed to new investors.

   
                                              April   , 1999 Prospectus  3    
<PAGE>
 

            Schedule of Fees
 
 
            Shareholder
            Transaction 
            Expenses 
 
<TABLE>   
<CAPTION>
                                             Class A     Class B     Class C
                                             Shares      Shares      Shares
           --------------------------------------------------------------------
           <S>                               <C>         <C>         <C>
           Maximum initial sales charge im-
            posed on purchases
            (as a percentage of offering
            price at time of purchase)        5.50%       None        None
           --------------------------------------------------------------------
           Maximum sales charge imposed on
            reinvested dividends
            (as a percentage of net asset
            value at time of purchase)         None       None        None
           --------------------------------------------------------------------
           Maximum contingent deferred
            sales charge ("CDSC")
            (as a percentage of original
            purchase price)                      1%(/1/)    5%(/2/)     1%(/3/)
             ------------------------------------------------------------------
           Exchange Fee                        None       None        None
</TABLE>    
          
            1. Imposed only in certain circumstances where Class A shares are
            purchased without a front-end sales charge at the time of pur-
            chase. See "Alternative Purchase Arrangements" in this Prospectus.
                   
            2. The maximum CDSC is imposed on shares redeemed in the first
            year. For shares held longer than one year, the CDSC declines ac-
            cording to the schedule set forth under "Alternative Purchase 
            Arrangements -- Deferred Sales Charge Alternative -- Class B Shares"
            in this Prospectus.     
               
            3. The CDSC on Class C shares is imposed only on shares redeemed
            in the first year.     
 
 
            Class A
            Shares
<TABLE>
<CAPTION>
                                                                 Example: You would pay the        Example: You would pay the
                                                                 following expenses on a $1,000    following expenses on a $1,000
                                                                 investment assuming (1) 5%        investment assuming (1) 5%
                                                                 annual return and (2)             annual return and (2) no
                    Annual Fund Operating Expenses               redemption at the end             redemption:
                    (As a percentage of average net assets):     of each time period:
                                                     Total
                               Admini-               Fund
                    Advisory   strative   12b-1      Operating   Year                              Year
   Fund             Fees       Fees(/1/)  Fees(/2/)  Expenses    1       3       5        10       1       3       5        10
   ---------------------------------------------------------------------------------------------------------------------------------
   <S>              <C>        <C>        <C>        <C>         <C>     <C>     <C>      <C>      <C>     <C>     <C>      <C>
   Balanced           .45%       .40%       .25%       1.10%     $66     $88     $112     $182     $66     $88     $112     $182
   ---------------------------------------------------------------------------------------------------------------------------------
   Equity Income      .45        .40        .25        1.10       66      88      112      182      66      88      112      182
   ---------------------------------------------------------------------------------------------------------------------------------
   Value              .45        .40        .25        1.10       66      88      112      182      66      88      112      182
   ---------------------------------------------------------------------------------------------------------------------------------
   Renaissance        .60        .40        .25        1.25       67      92      120      198      67      92      120      198
   ---------------------------------------------------------------------------------------------------------------------------------
   Tax-Efficient
    Equity            .45        .40        .25        1.10       66      88       --       --      66      88       --       --
   ---------------------------------------------------------------------------------------------------------------------------------
   Capital
    Appreciation      .45        .40        .25        1.10       66      88      112      182      66      88      112      182
   ---------------------------------------------------------------------------------------------------------------------------------
   Growth             .50        .40        .25        1.15       66      90      115      187      66      90      115      187
   ---------------------------------------------------------------------------------------------------------------------------------
   Value 25           .50        .40        .25        1.15       66      90       --       --      66      90       --       --
   ---------------------------------------------------------------------------------------------------------------------------------
   Mid-Cap Growth     .45        .40        .25        1.10       66      88      112      182      66      88      112      182
   ---------------------------------------------------------------------------------------------------------------------------------
   Target             .55        .40        .25        1.20       67      91      117      192      67      91      117      192
   ---------------------------------------------------------------------------------------------------------------------------------
   Small-Cap Value    .60        .40        .25        1.25       67      92      120      198      67      92      120      198
   ---------------------------------------------------------------------------------------------------------------------------------
   Opportunity        .65        .40        .25        1.30       68      94      122      203      68      94      122      203
   ---------------------------------------------------------------------------------------------------------------------------------
   International      .55        .65        .25        1.45       69      98      130      219      69      98      130      219
   ---------------------------------------------------------------------------------------------------------------------------------
   Innovation         .65        .40        .25        1.30       68      94      122      203      68      94      122      203
   ---------------------------------------------------------------------------------------------------------------------------------
   Precious Metals    .60        .45        .25        1.30       68      94      122      203      68      94      122      203
</TABLE>

1. The Administrative Fees for each Fund are subject to reduction to the extent
that the average net assets attributable in the ag gregate to the Fund's Class
A, Class B and Class C shares exceed $2.5 billion. See "Management of the 
Trust -- Advisory and Administrative Fees."
2. 12b-1 fees represent servicing fees which are paid annually to the
Distributor and repaid to participating brokers, certain banks and other
financial intermediaries. See "Distributor and Distribuand Servicing
Plans."


4  PIMCO Funds: Multi-Manager Series
<PAGE>

Class B Shares
 
<TABLE>   
<CAPTION>
                                                                    Example: You would pay the
                                                                    following expenses on a $1,000
                                                                    investment assuming (1) 5%
                      Annual Fund Operating Expenses                annual return and (2) redemption
                      (As a percentage of average net assets):      at the end of each time period:
                                                        Total
                                 Admini-                Fund
                      Advisory   strative   12b-1       Operating   Year
Fund                  Fees       Fees(/1/)  Fees(/2/)   Expenses    1        3       5        10
- ------------------------------------------------------------------------------------------------------
<S>                   <C>        <C>        <C>         <C>         <C>      <C>     <C>      <C>
Balanced                .45%       .40%       1.00%       1.85%     $69      $88     $120     $188
- ------------------------------------------------------------------------------------------------------
Equity Income           .45        .40        1.00        1.85       69       88      120      188
- ------------------------------------------------------------------------------------------------------
Value                   .45        .40        1.00        1.85       69       88      120      188
- ------------------------------------------------------------------------------------------------------
Renaissance             .60        .40        1.00        2.00       70       93      128      204
- ------------------------------------------------------------------------------------------------------
Tax-Efficient
 Equity                 .45        .40        1.00        1.85       69       88       --       --
- ------------------------------------------------------------------------------------------------------
Capital Appreciation    .45        .40        1.00        1.85       69       88      120      188
- ------------------------------------------------------------------------------------------------------
Growth                  .50        .40        1.00        1.90       69       90      123      193
- ------------------------------------------------------------------------------------------------------
Value 25                .50        .40        1.00        1.90       69       90       --       --
- ------------------------------------------------------------------------------------------------------
Mid-Cap Growth          .45        .40        1.00        1.85       69       88      120      188
- ------------------------------------------------------------------------------------------------------
Target                  .55        .40        1.00        1.95       70       91      125      198
- ------------------------------------------------------------------------------------------------------
Small-Cap Value         .60        .40        1.00        2.00       70       93      128      204
- ------------------------------------------------------------------------------------------------------
Opportunity             .65        .40        1.00        2.05       71       94      130      209
- ------------------------------------------------------------------------------------------------------
International           .55        .65        1.00        2.20       72       99      138      225
- ------------------------------------------------------------------------------------------------------
Innovation              .65        .40        1.00        2.05       71       94      130      209
- ------------------------------------------------------------------------------------------------------
Precious Metals         .60        .45        1.00        2.05       71       94      130      209
<CAPTION>
                      Example: You would pay the
                      following expenses on a $1,000
                      investment assuming (1) 5%
                      annual return and (2) no
                      redemption:
                      Year
Fund                  1       3       5        10
- ------------------------------------------------------ 
<S>                   <C>     <C>     <C>      <C>
Balanced              $19     $58     $100     $188
- ------------------------------------------------------ 
Equity Income          19      58      100      188
- ------------------------------------------------------ 
Value                  19      58      100      188
- ------------------------------------------------------ 
Renaissance            20      63      108      204
- ------------------------------------------------------ 
Tax-Efficient
 Equity                19      58       --       --
- ------------------------------------------------------ 
Capital Appreciation   19      58      100      188
- ------------------------------------------------------ 
Growth                 19      60      103      193
- ------------------------------------------------------ 
Value 25               19      60       --       --
- ------------------------------------------------------ 
Mid-Cap Growth         19      58      100      188
- ------------------------------------------------------ 
Target                 20      61      105      198
- ------------------------------------------------------ 
Small-Cap Value        20      63      108      204
- ------------------------------------------------------ 
Opportunity            21      64      110      209
- ------------------------------------------------------ 
International          22      69      118      225
- ------------------------------------------------------ 
Innovation             21      64      110      209
- ------------------------------------------------------ 
Precious Metals        21      64      110      209
</TABLE>    

1. The Administrative Fees for each Fund are subject to reduction to the extent
that the average net assets attributable in the aggregate to the Fund's Class A,
Class B and Class C shares exceed $2.5 billion. See "Management of the Trust--
Advisory and Administrative Fees."
2. 12b-1 fees which are equal to .25% represent servicing fees which are paid
annually to the Distributor and repaid to participating brokers, certain banks
and other financial intermediaries. 12b-1 fees which exceed .25% represent
aggregate distribution and servicing fees. See "Distributor and Distribution and
Servicing Plans."

                                             
                                                   April   , 1999 Prospectus  5
                                                                               
<PAGE>
 

Class C Shares
<TABLE>
<CAPTION>
                                                                 Example: You would pay the
                                                                 following expenses on a $1,000
                                                                 investment assuming (1) 5%
                      Annual Fund Operating Expenses             annual return and (2) redemption
                      (As a percentage of average net assets):   at the end of each time period:
                                                      Total
                                Admini-               Fund
                      Advisory  strative   12b-1      Operating  Year
Fund                  Fees      Fees(/1/)  Fees(/2/)  Expenses   1        3       5        10
- ---------------------------------------------------------------------------------------------------
<S>                   <C>       <C>        <C>        <C>        <C>      <C>     <C>      <C>
Balanced              .45%      .40%       1.00%      1.85%       $29      $58     $100     $217
- ---------------------------------------------------------------------------------------------------
Equity Income         .45       .40        1.00       1.85         29       58      100      217
- ---------------------------------------------------------------------------------------------------
Value                 .45       .40        1.00       1.85         29       58      100      217
- ---------------------------------------------------------------------------------------------------
Renaissance           .60       .40        1.00       2.00         30       63      108      233
- ---------------------------------------------------------------------------------------------------
Tax-Efficient
 Equity               .45       .40        1.00       1.85         29       58       --       --
- ---------------------------------------------------------------------------------------------------
Capital Appreciation  .45       .40        1.00       1.85         29       58      100      217
- ---------------------------------------------------------------------------------------------------
Growth                .50       .40        1.00       1.90         29       60      103      222
- ---------------------------------------------------------------------------------------------------
Value 25              .50       .40        1.00       1.90         29       60       --       --
- ---------------------------------------------------------------------------------------------------
Mid-Cap Growth        .45       .40        1.00       1.85         29       58      100      217
- ---------------------------------------------------------------------------------------------------
Target                .55       .40        1.00       1.95         30       61      105      227
- ---------------------------------------------------------------------------------------------------
Small-Cap Value       .60       .40        1.00       2.00         30       63      108      233
- ---------------------------------------------------------------------------------------------------
Opportunity           .65       .40        1.00       2.05         31       64      110      238
- ---------------------------------------------------------------------------------------------------
International         .55       .65        1.00       2.20         32       69      118      253
- ---------------------------------------------------------------------------------------------------
Innovation            .65       .40        1.00       2.05         31       64      110      238
- ---------------------------------------------------------------------------------------------------
Precious Metals       .60       .45        1.00       2.05         31       64      110      238
<CAPTION>
                      Example: You would pay the
                      following expenses on a $1,000
                      investment assuming (1) 5%
                      annual return and (2) no
                      redemption:
                      Year
Fund                  1       3       5        10
- ------------------------------------------------------ 
<S>                   <C>     <C>     <C>      <C>
Balanced              $19     $58     $100     $217
- ------------------------------------------------------ 
Equity Income          19      58      100      217
- ------------------------------------------------------ 
Value                  19      58      100      217
- ------------------------------------------------------ 
Renaissance            20      63      108      233
- ------------------------------------------------------ 
Tax-Efficient
 Equity                19      58       --       --
- ------------------------------------------------------ 
Capital Appreciation   19      58      100      217
- ------------------------------------------------------ 
Growth                 19      60      103      222
- ------------------------------------------------------ 
Value 25               19      60       --       --
- ------------------------------------------------------ 
Mid-Cap Growth         19      58      100      217
- ------------------------------------------------------ 
Target                 20      61      105      227
- ------------------------------------------------------ 
Small-Cap Value        20      63      108      233
- ------------------------------------------------------ 
Opportunity            21      64      110      238
- ------------------------------------------------------ 
International          22      69      118      253
- ------------------------------------------------------ 
Innovation             21      64      110      238
- ------------------------------------------------------ 
Precious Metals        21      64      110      238
</TABLE>
 
1. The Administrative Fees for each Fund are subject to reduction to the extent
that the average net assets attributable in the aggregate to the Fund's Class A,
Class B and Class C shares exceed $2.5 billion. See "Management of the Trust--
Advisory and Administrative Fees."
2. 12b-1 fees which are equal to .25% represent servicing fees which are paid
annually to the Distributor and repaid to participating brokers, certain banks
and other financial intermediaries. 12b-1 fees which exceed .25% represent
aggregate distribution and servicing fees. See "Distributor and Distribution and
Servicing Plans."
 
The purpose of the foregoing tables is to assist investors in understanding the
various costs and expenses of the Trust that are borne directly or indirectly by
Class A, Class B and Class C shareholders of the Funds. The information is based
upon each Fund's current fees and expenses. The Examples for Class A shares
assume payment of the current maximum applicable sales load. Due to the 12b-1
distribution fee imposed on Class B and Class C shares, a Class B or Class C
shareholder of the Trust may, depending on the length of time the shares are
held, pay more than the economic equivalent of the maximum front-end sales
charges permitted by relevant rules of the National Association of Securities
Dealers, Inc.
 
NOTE: The figures shown in the Examples are entirely hypothetical. They are not
representations of past or future performance or expenses; actual performance
and/or expenses may be more or less than shown.
 
6   PIMCO Funds: Multi-Manager Series
<PAGE>
 
 
 
                      (This page left blank intentionally)
 
 
 
                                                 
                                                  April   , 1999 Prospectus   7
                                                                               
<PAGE>
 

Financial Highlights
   
The financial highlights set forth on the following pages present certain
information and ratios as well as performance information for the Funds that
were operational during the periods listed. Certain information provided below
is included in the June 30, 1998 PIMCO Funds Annual Report (relating to Class
A, B and C shares) and has been audited by PricewaterhouseCoopers LLP,
independent accountants, whose report thereon is also included in such Annual
Re-port. The Annual Report is incorporated by reference in the Statement of
Additional Information and may be obtained without charge from the Distributor.
Financial Statements and related notes are also incorporated by reference in
the Statement of Additional Information. [Note: Unaudited information for the
period ended December 31, 1998 to be included in a Post-Effective Amendment
filed prior to the effective date of this Amendment.]     
 
<TABLE>
<CAPTION>
                                                        Net Realized/                  Dividends  Dividends in  Distributions
Selected Per Share Data  Net Asset Value Net            Unrealized     Total Income    From Net   Excess of Net From Net
for the Period Ended:    Beginning       Investment     Gain (Loss) on From Investment Investment Investment    Realized Capital
                         of Period       Income (Loss)  Investments    Operations      Income     Income        Gains
                         --------------- -------------  -------------- --------------- ---------- ------------- ----------------
<S>                      <C>             <C>            <C>            <C>             <C>        <C>           <C>
Balanced Fund
 Class A
 06/30/98                   $  11.40        $ 0.29 (a)      $ 1.81 (a)    $   2.10      $ (0.30)    $   0.00        $  (1.09)
 01/20/97-
  06/30/97                     10.77          0.21            0.58            0.79        (0.16)        0.00            0.00
 Class B
 06/30/98                      11.39          0.20 (a)        1.82 (a)        2.02        (0.25)        0.00           (1.09)
 01/20/97-
  06/30/97                     10.77          0.19            0.58            0.77        (0.15)        0.00            0.00
 Class C
 06/30/98                      11.39          0.20 (a)        1.82 (a)        2.02        (0.25)        0.00           (1.09)
 01/20/97-
  06/30/97                     10.77          0.18            0.58            0.76        (0.14)        0.00            0.00
Equity Income
 Fund
 Class A
 06/30/98                   $  15.39        $ 0.39 (a)      $ 2.73 (a)    $   3.12      $ (0.38)    $   0.00        $  (2.09)
 01/20/97-
  06/30/97                     13.94          0.15            1.48            1.63        (0.18)        0.00            0.00
 Class B
 06/30/98                      15.37          0.26 (a)        2.73 (a)        2.99        (0.28)        0.00           (2.09)
 01/20/97-
  06/30/97                     13.94          0.11            1.48            1.59        (0.16)        0.00            0.00
 Class C
 06/30/98                      15.37          0.26 (a)        2.74 (a)        3.00        (0.27)        0.00           (2.09)
 01/20/97-
  06/30/97                     13.94          0.11            1.48            1.59        (0.16)        0.00            0.00
Value Fund
 Class A
 06/30/98                   $  14.80        $ 0.19 (a)      $ 2.46 (a)    $   2.65      $ (0.18)    $   0.00        $  (1.63)
 01/13/97-
  06/30/97                     13.17          0.47            1.26            1.73        (0.10)        0.00            0.00
 Class B
 06/30/98                      14.80          0.07 (a)        2.46 (a)        2.53        (0.07)        0.00           (1.63)
 01/13/97-
  06/30/97                     13.16          0.44            1.26            1.70        (0.06)        0.00            0.00
 Class C
 06/30/98                      14.80          0.07 (a)        2.46 (a)        2.53        (0.07)        0.00           (1.63)
 01/13/97-
  06/30/97                     13.15          0.43            1.28            1.71        (0.06)        0.00            0.00
Renaissance
 Fund (i)
 Class A
 06/30/98                   $  17.73        $ 0.07 (a)      $ 4.91 (a)    $   4.98      $ (0.08)    $   0.00        $  (3.53)
 10/01/96-
  06/30/97                     16.08          0.12 (a)        3.90 (a)        4.02        (0.12)        0.00           (2.25)
 09/30/96                      14.14          0.23            2.79            3.02        (0.23)       (0.07)          (0.78)
 09/30/95                      12.50          0.36            1.61            1.97        (0.33)        0.00            0.00
 09/30/94                      12.88          0.34           (0.17)           0.17        (0.33)        0.00           (0.22)
 09/30/93                      10.57          0.33            2.30            2.63        (0.32)        0.00            0.00
 09/30/92                       9.92          0.34            0.71            1.05        (0.40)        0.00            0.00
 02/1/91-
  09/30/91                      8.38          0.28            1.54            1.82        (0.28)        0.00            0.00
 Class B
 06/30/98                      17.77         (0.07)(a)        4.91 (a)        4.84        (0.02)        0.00           (3.53)
 10/01/96-
  06/30/97                     16.12          0.03 (a)        3.92 (a)        3.95        (0.05)        0.00           (2.25)
 09/30/96                      14.13          0.09            2.83            2.92        (0.11)       (0.04)          (0.78)
 05/22/95-
  09/30/95                     12.55          0.11            1.55            1.66        (0.08)        0.00            0.00

<CAPTION>
Selected Per Share Data  Distributions
for the Period Ended:    in Excess of
                         Net Realized
                         Capital Gains
                         -------------
<S>                      <C>
Balanced Fund
 Class A
 06/30/98                  $   0.00
 01/20/97-
  06/30/97                     0.00
 Class B
 06/30/98                      0.00
 01/20/97-
  06/30/97                     0.00
 Class C
 06/30/98                      0.00
 01/20/97-
  06/30/97                     0.00
Equity Income
 Fund
 Class A
 06/30/98                  $   0.00
 01/20/97-
  06/30/97                     0.00
 Class B
 06/30/98                      0.00
 01/20/97-
  06/30/97                     0.00
 Class C
 06/30/98                      0.00
 01/20/97-
  06/30/97                     0.00
Value Fund
 Class A
 06/30/98                  $   0.00
 01/13/97-
  06/30/97                     0.00
 Class B
 06/30/98                      0.00
 01/13/97-
  06/30/97                     0.00
 Class C
 06/30/98                      0.00
 01/13/97-
  06/30/97                     0.00
Renaissance
 Fund (i)
 Class A
 06/30/98                  $   0.00
 10/01/96-
  06/30/97                     0.00
 09/30/96                      0.00
 09/30/95                      0.00
 09/30/94                      0.00
 09/30/93                      0.00
 09/30/92                      0.00
 02/1/91-
  09/30/91                     0.00
 Class B
 06/30/98                      0.00
 10/01/96-
  06/30/97                     0.00
 09/30/96                      0.00
 05/22/95-
  09/30/95                     0.00
</TABLE>
*Annualized
 (a) Per share amounts based upon average number of shares outstanding during
     the period.
 (i) Formerly, the PIMCO Advisors Equity Income Fund. The information provided
     reflects results of operations under the Fund's former investment
     objective and policies through January 31, 1992; such results would not
     necessarily have been achieved had the Fund's current objective and
     policies then been in effect.


8  PIMCO Funds: Multi-Manager Series
<PAGE>
 

 
The information provided for each of the Renaissance, Growth, Target, Opportu-
nity, International, Innovation and Precious Metals Funds reflects the opera-
tional history of a corresponding series of PIMCO Advisors Funds which reorga-
nized as a series of the Trust on January 17, 1997. In connection with the re-
organizations, these Funds changed their fiscal year ends from September 30 to
June 30. The expense ratios provided for these Funds reflect fee arrangements
of PIMCO Advisors Funds in effect prior to January 17, 1997 which differ from
the current fee arrangements of the Trust.
 
<TABLE>
<CAPTION>
                                                                                              Ratio of Net
                                                                                  Ratio of    Investment
Distributions  Tax Basis               Net Asset                                  Expenses to Income (Loss) to
from           Return of Total         Value End of              Net Assets End   Average Net Average Net      Portfolio
Equalization   Capital   Distributions Period       Total Return of Period (000s) Assets      Assets           Turnover Rate
- -------------  --------- ------------- ------------ ------------ ---------------- ----------- ---------------- -------------
<S>            <C>       <C>           <C>          <C>          <C>              <C>         <C>              <C>
 
 
  $   0.00     $   0.00    $  (1.39)     $  12.11       19.40%       $  9,586         1.12%          2.47%            186%
      0.00         0.00       (0.16)        11.40        7.42             366         1.15*          3.01*            199
 
      0.00         0.00       (1.34)        12.07       18.59           8,977         1.86           1.71             186
      0.00         0.00       (0.15)        11.39        7.15           1,124         1.90*          2.28*            199
 
      0.00         0.00       (1.34)        12.07       18.59           8,469         1.86           1.71             186
      0.00         0.00       (0.14)        11.39        7.12             921         1.90*          2.26*            199
 
 
  $   0.00     $   0.00    $  (2.47)     $  16.04       21.35%       $ 12,954         1.11%          2.39%             45%
      0.00         0.00       (0.18)        15.39       11.77           1,756         1.13*          2.85*             45
 
      0.00         0.00       (2.37)        15.99       20.47          15,178         1.85           1.63              45
      0.00         0.00       (0.16)        15.37       11.45           2,561         1.87*          2.11*             45
 
      0.00         0.00       (2.36)        16.01       20.51          23,122         1.85           1.60              45
      0.00         0.00       (0.16)        15.37       11.42           6,624         1.87*          2.15*             45
 
 
  $   0.00     $   0.00    $  (1.81)     $  15.64       18.86%       $ 21,742         1.11%          1.19%             77%
      0.00         0.00       (0.10)        14.80       13.19          15,648         1.11*          1.71*             71
 
      0.00         0.00       (1.70)        15.63       17.98          35,716         1.86           0.45              77
      0.00         0.00       (0.06)        14.80       12.93          25,433         1.86*          0.96*             71
 
      0.00         0.00       (1.70)        15.63       17.98          88,235         1.86           0.45              77
      0.00         0.00       (0.06)        14.80       13.02          64,110         1.86*          0.97*             71
 
 
  $   0.00     $   0.00    $  (3.61)     $  19.10       30.98%       $ 85,562         1.26%          0.35%            192%
      0.00         0.00       (2.37)        17.73       27.53          33,606         1.23*          0.95*            131
      0.00         0.00       (1.08)        16.08       22.37          20,631         1.25           1.60             203
      0.00         0.00       (0.33)        14.14       16.10          12,933         1.30           2.90             177
      0.00         0.00       (0.55)        12.50        1.40          14,942         1.30           2.70             175
      0.00         0.00       (0.32)        12.88       25.30           6,328         1.30           2.90             168
      0.00         0.00       (0.40)        10.57       10.70           2,593         1.40           3.30             149
      0.00         0.00       (0.28)         9.92       34.80              15         1.60*          4.40*            143
 
      0.00         0.00       (3.55)        19.06       29.99         100,688         2.01          (0.39)            192
      0.00         0.00       (2.30)        17.77       26.88          37,253         1.97*          0.20*            131
      0.00         0.00       (0.93)        16.12       21.54          15,693         2.00           0.85             203
      0.00         0.00       (0.08)        14.13       13.30           1,760         2.10*          2.20*            177
 
</TABLE>
                                            
                                                  April   , 1999 Prospectus   9
                                                                               
<PAGE>
 

Financial Highlights (continued)
 
<TABLE>
<CAPTION>
 
Selected Per Share Data                                 Net Realized/                  Dividends  Dividends in  Distributions
for the Period Ended:    Net Asset Value Net            Unrealized     Total Income    From Net   Excess of Net From Net
                         Beginning       Investment     Gain (Loss) on From Investment Investment Investment    Realized Capital
                         of Period       Income (Loss)  Investments    Operations      Income     Income        Gains
                         --------------- -------------  -------------- --------------- ---------- ------------- ----------------
<S>                      <C>             <C>            <C>            <C>             <C>        <C>           <C>
Renaissance Fund
 (Cont.)
 Class C
 06/30/98                   $  17.69        $(0.07)(a)      $ 4.88 (a)    $   4.81      $ (0.01)    $   0.00        $  (3.53)
 10/01/96-
  06/30/97                     16.05          0.03 (a)        3.90 (a)        3.93        (0.04)        0.00           (2.25)
 09/30/96                      14.09          0.12            2.78            2.90        (0.13)       (0.03)          (0.78)
 09/30/95                      12.47          0.27            1.59            1.86        (0.24)        0.00            0.00
 09/30/94                      12.85          0.24           (0.16)           0.08        (0.24)        0.00           (0.22)
 09/30/93                      10.56          0.25            2.29            2.54        (0.25)        0.00            0.00
 09/30/92                       9.91          0.29            0.68            0.97        (0.32)        0.00            0.00
 09/30/91                       8.16          0.36            1.75            2.11        (0.36)        0.00            0.00
 09/30/90                      11.17          0.49           (2.32)          (1.83)       (0.49)        0.00           (0.69)
 09/30/89                      10.05          0.55            1.19            1.74        (0.62)        0.00            0.00
Capital Appreci-
 ation Fund
 Class A
 06/30/98                   $  21.16        $ 0.07 (a)      $ 6.55 (a)    $   6.62      $ (0.09)    $   0.00        $  (1.68)
 01/20/97-
  06/30/97                     19.31          0.09            1.76            1.85         0.00         0.00            0.00
 Class B
 06/30/98                      21.10         (0.11)(a)        6.51 (a)        6.40        (0.07)        0.00           (1.68)
 01/20/97-
  06/30/97                     19.31          0.01            1.78            1.79         0.00         0.00            0.00
 Class C
 06/30/98                      21.10         (0.12)(a)        6.53 (a)        6.41        (0.05)        0.00           (1.68)
 01/20/97-
  06/30/97                     19.31          0.02            1.77            1.79         0.00         0.00            0.00
Growth Fund
 Class A
 06/30/98                   $  27.03        $(0.08)(a)      $ 9.99 (a)    $   9.91      $  0.00     $   0.00        $  (4.32)
 10/01/96-
  06/30/97                     26.58          0.69            3.27            3.96         0.00         0.00           (3.51)
 09/30/96                      25.73          0.06            3.72            3.78         0.00         0.00           (2.93)
 09/30/95                      22.01          0.12            4.79            4.91         0.00         0.00           (1.19)
 09/30/94                      23.64          0.12            0.12            0.24         0.00         0.00           (1.87)
 09/30/93                      20.76          0.09            3.53            3.62         0.00         0.00           (0.74)
 09/30/92                      20.63          0.14            1.38            1.52        (0.14)        0.00           (1.25)
 10/26/90-
  09/30/91                     16.99          0.21            5.28            5.49        (0.19)        0.00           (1.66)
 Class B
 06/30/98                      25.59         (0.28)(a)        9.35 (a)        9.07         0.00         0.00           (4.32)
 10/01/96-
  06/30/97                     25.46          0.35            3.29            3.64         0.00         0.00           (3.51)
 09/30/96                      24.94         (0.07)           3.52            3.45         0.00         0.00           (2.93)
 05/23/95-
  09/30/95                     22.63         (0.03)           2.34            2.31         0.00         0.00            0.00
 Class C
 06/30/98                      25.58         (0.28)(a)        9.35 (a)        9.07         0.00         0.00           (4.32)
 10/01/96-
  06/30/97                     25.46          0.45            3.18            3.63         0.00         0.00           (3.51)
 09/30/96                      24.94         (0.12)           3.57            3.45         0.00         0.00           (2.93)
 09/30/95                      21.52         (0.04)           4.65            4.61         0.00         0.00           (1.19)
 09/30/94                      23.32         (0.04)           0.11            0.07         0.00         0.00           (1.87)
 09/30/93                      20.64         (0.07)           3.49            3.42         0.00         0.00           (0.74)
 09/30/92                      20.54         (0.01)           1.37            1.36        (0.01)        0.00           (1.25)
 09/30/91                      16.93          0.12            5.32            5.44        (0.17)        0.00           (1.66)
 09/30/90                      19.71          0.19           (1.67)          (1.48)       (0.18)        0.00           (1.12)
 09/30/89                      13.93          0.11            5.77            5.88        (0.10)        0.00            0.00
Mid-Cap Growth
 Fund
 Class A
 06/30/98                   $  20.24        $ 0.02 (a)      $ 5.11 (a)    $   5.13      $ (0.04)    $   0.00        $  (1.33)
 01/13/97-
  06/30/97                     18.14         (0.04)           2.14            2.10         0.00         0.00            0.00
 Class B
 06/30/98                      20.17         (0.16)(a)        5.09 (a)        4.93         0.00         0.00           (1.33)
 01/13/97-
  06/30/97                     18.14         (0.11)           2.14            2.03         0.00         0.00            0.00
 Class C
 06/30/98                      20.18         (0.16)(a)        5.08 (a)        4.92         0.00         0.00           (1.33)
 01/13/97-
  06/30/97                     18.14         (0.10)           2.14            2.04         0.00         0.00            0.00
<CAPTION>
 
Selected Per Share Data  Distributions
for the Period Ended:    in Excess of
                         Net Realized
                         Capital Gains
                         -------------
<S>                      <C>
Renaissance Fund
 (Cont.)
 Class C
 06/30/98                  $   0.00
 10/01/96-
  06/30/97                     0.00
 09/30/96                      0.00
 09/30/95                      0.00
 09/30/94                      0.00
 09/30/93                      0.00
 09/30/92                      0.00
 09/30/91                      0.00
 09/30/90                      0.00
 09/30/89                      0.00
Capital Appreci-
 ation Fund
 Class A
 06/30/98                  $   0.00
 01/20/97-
  06/30/97                     0.00
 Class B
 06/30/98                      0.00
 01/20/97-
  06/30/97                     0.00
 Class C
 06/30/98                      0.00
 01/20/97-
  06/30/97                     0.00
Growth Fund
 Class A
 06/30/98                  $   0.00
 10/01/96-
  06/30/97                     0.00
 09/30/96                      0.00
 09/30/95                      0.00
 09/30/94                      0.00
 09/30/93                      0.00
 09/30/92                      0.00
 10/26/90-
  09/30/91                     0.00
 Class B
 06/30/98                      0.00
 10/01/96-
  06/30/97                     0.00
 09/30/96                      0.00
 05/23/95-
  09/30/95                     0.00
 Class C
 06/30/98                      0.00
 10/01/96-
  06/30/97                     0.00
 09/30/96                      0.00
 09/30/95                      0.00
 09/30/94                      0.00
 09/30/93                      0.00
 09/30/92                      0.00
 09/30/91                      0.00
 09/30/90                      0.00
 09/30/89                      0.00
Mid-Cap Growth
 Fund
 Class A
 06/30/98                  $   0.00
 01/13/97-
  06/30/97                     0.00
 Class B
 06/30/98                      0.00
 01/13/97-
  06/30/97                     0.00
 Class C
 06/30/98                      0.00
 01/13/97-
  06/30/97                     0.00
</TABLE>
*Annualized
(a) Per share amounts based upon average number of shares outstanding during
    the period.


10   PIMCO Funds: Multi-Manager Series
<PAGE>
 
 
<TABLE>
<CAPTION>
                                                                                              Ratio of Net
                                                                                  Ratio of    Investment
Distributions  Tax Basis               Net Asset                                  Expenses to Income (Loss) to
from           Return of Total         Value End of              Net Assets End   Average Net Average Net      Portfolio
Equalization   Capital   Distributions Period       Total Return of Period (000s) Assets      Assets           Turnover Rate
- -------------  --------- ------------- ------------ ------------ ---------------- ----------- ---------------- -------------
<S>            <C>       <C>           <C>          <C>          <C>              <C>         <C>              <C>
 
  $   0.00     $   0.00    $  (3.54)     $  18.96       29.98%      $  469,797        2.01%         (0.37)%           192%
      0.00         0.00       (2.29)        17.69       26.86          313,226        1.97*          0.21*            131
      0.00         0.00       (0.94)        16.05       21.52          230,058        2.00           0.85             203
      0.00         0.00       (0.24)        14.09       15.20          174,316        2.10           2.10             177
      0.00         0.00       (0.46)        12.47        0.70          178,892        2.00           2.00             175
      0.00         0.00       (0.25)        12.85       24.40           94,247        2.10           2.20             168
      0.00         0.00       (0.32)        10.56        9.90           45,101        2.10           2.70             149
      0.00         0.00       (0.36)         9.91       26.50           22,651        2.20           4.20             143
      0.00         0.00       (1.18)         8.16      (18.00)          25,758        2.00           5.10              70
      0.00         0.00       (0.62)        11.17       17.90           45,168        1.90           5.20              85
 
 
  $   0.00     $   0.00    $  (1.77)     $  26.01       32.39%      $   72,803        1.10%          0.27%             75%
      0.00         0.00        0.00         21.16        9.58            6,534        1.11*          0.59*             87
      0.00         0.00       (1.75)        25.75       31.39           40,901        1.85          (0.47)             75
      0.00         0.00        0.00         21.10        9.27            3,022        1.85*         (0.26)*            87
 
      0.00         0.00       (1.73)        25.78       31.40           71,481        1.85          (0.49)             75
      0.00         0.00        0.00         21.10        9.27           13,093        1.86*         (0.23)*            87
 
 
  $   0.00     $   0.00    $  (4.32)     $  32.62       41.03%      $  180,119        1.16%         (0.27)%           123%
      0.00         0.00       (3.51)        27.03       15.93          147,276        1.11*          0.13*             94
      0.00         0.00       (2.93)        26.58       16.11          151,103        1.11           0.24             104
      0.00         0.00       (1.19)        25.73       23.70          134,819        1.10           0.50             111
      0.00         0.00       (1.87)        22.01        1.30          107,269        1.10           0.60             115
      0.00         0.00       (0.74)        23.64       17.70           97,509        1.10           0.40             110
      0.00         0.00       (1.39)        20.76        7.70           71,209        1.10           0.70              92
      0.00         0.00       (1.85)        20.63       38.60           17,064        1.20*          0.90*             95
 
      0.00         0.00       (4.32)        30.34       39.97           80,719        1.91          (1.02)            123
      0.00         0.00       (3.51)        25.59       15.32           55,626        1.86*         (0.62)*            94
      0.00         0.00       (2.93)        25.46       15.22           37,256        1.86          (0.51)            104
      0.00         0.00        0.00         24.94       10.20            7,671        1.90*         (0.40)*           111
 
      0.00         0.00       (4.32)        30.33       39.99        1,853,002        1.91          (1.02)            123
      0.00         0.00       (3.51)        25.58       15.27        1,514,432        1.86*         (0.61)*            94
      0.00         0.00       (2.93)        25.46       15.22        1,450,216        1.86          (0.51)            104
      0.00         0.00       (1.19)        24.94       22.80        1,290,152        1.90          (0.20)            111
      0.00         0.00       (1.87)        21.52        0.50        1,085,427        1.90          (0.20)            115
      0.00         0.00       (0.74)        23.32       16.90        1,077,490        1.90          (0.30)            110
      0.00         0.00       (1.26)        20.64        6.90          853,121        1.90          (0.10)             92
      0.00         0.00       (1.83)        20.54       35.10          564,398        1.80           0.60              95
      0.00         0.00       (1.30)        16.93       (8.00)         314,075        1.70           1.00              89
      0.00         0.00       (0.10)        19.71       42.40          373,490        1.70           0.70              83
 
  $   0.00     $   0.00    $  (1.37)     $  24.00       25.71%      $   57,164        1.11%          0.07%             66%
      0.00         0.00        0.00         20.24       11.58           12,184        1.11*          0.17*             82
 
      0.00         0.00       (1.33)        23.77       24.76           84,535        1.86          (0.68)             66
      0.00         0.00        0.00         20.17       11.19           28,259        1.85*         (0.58)*            82
 
      0.00         0.00       (1.33)        23.77       24.70          140,438        1.86          (0.68)             66
      0.00         0.00        0.00         20.18       11.25           53,686        1.86*         (0.58)*            82
 
 
</TABLE>
                                                
                                                 April   , 1999 Prospectus   11
                                                                               
<PAGE>
 

Financial Highlights (continued)
 
 
 
<TABLE>
<CAPTION>
Selected Per Share Data                                 Net Realized/                  Dividends  Dividends in  Distributions
for the Period Ended:    Net Asset Value Net            Unrealized     Total Income    From Net   Excess of Net From Net
                         Beginning       Investment     Gain (Loss) on From Investment Investment Investment    Realized Capital
                         of Period       Income (Loss)  Investments    Operations      Income     Income        Gains
                         --------------- -------------  -------------- --------------- ---------- ------------- ----------------
<S>                      <C>             <C>            <C>            <C>             <C>        <C>           <C>
Target Fund
 Class A
 06/30/98                   $  16.82        $(0.08)(a)      $ 4.06 (a)    $   3.98      $  0.00     $   0.00        $  (4.45)
 10/01/96-
  06/30/97                     17.11         (0.04)(a)        1.82 (a)        1.78         0.00         0.00           (2.07)
 09/30/96                      16.40         (0.05)           2.54            2.49         0.00         0.00           (1.78)
 09/30/95                      13.13         (0.02)           3.45            3.43         0.00         0.00           (0.16)
 09/30/94                      12.72         (0.04)           0.57            0.53         0.00         0.00           (0.12)
 12/17/92-
  09/30/93                     10.00         (0.02)           2.74            2.72         0.00         0.00            0.00
 Class B
 06/30/98                      16.14         (0.19)(a)        3.84 (a)        3.65         0.00         0.00           (4.45)
 10/01/96-
  06/30/97                     16.58         (0.12)(a)        1.75 (a)        1.63         0.00         0.00           (2.07)
 09/30/96                      16.06         (0.09)           2.39            2.30         0.00         0.00           (1.78)
 05/22/95-
  09/30/95                     13.93         (0.05)           2.18            2.13         0.00         0.00            0.00
 Class C
 06/30/98                      16.13         (0.19)(a)        3.85 (a)        3.66         0.00         0.00           (4.45)
 10/01/96-
  06/30/97                     16.58         (0.12)(a)        1.74 (a)        1.62         0.00         0.00           (2.07)
 09/30/96                      16.05         (0.16)           2.47            2.31         0.00         0.00           (1.78)
 09/30/95                      12.95         (0.12)           3.38            3.26         0.00         0.00           (0.16)
 09/30/94                      12.65         (0.14)           0.56            0.42         0.00         0.00           (0.12)
 12/17/92-
  9/30/93                      10.00         (0.09)           2.74            2.65         0.00         0.00            0.00
Small-Cap
 Value Fund
 Class A
 06/30/98                   $  15.75        $ 0.23 (a)      $ 2.49 (a)    $   2.72      $ (0.13)    $   0.00        $  (0.76)
 01/20/97-
  06/30/97                     14.02          0.10            1.63            1.73         0.00         0.00            0.00
 Class B
 06/30/98                      15.71          0.09 (a)        2.48 (a)        2.57        (0.09)        0.00           (0.76)
 01/20/97-
  06/30/97                     14.02          0.08            1.61            1.69         0.00         0.00            0.00
 Class C
 06/30/98                      15.71          0.09 (a)        2.49 (a)        2.58        (0.09)        0.00           (0.76)
 01/20/97-
  06/30/97                     14.02          0.08            1.61            1.69         0.00         0.00            0.00
Opportunity
 Fund
 Class A
 06/30/98                   $  29.35        $(0.27)(a)      $ 4.19 (a)    $   3.92      $  0.00     $   0.00        $  (1.94)
 10/01/96-
  06/30/97                     37.36          0.00           (3.10)          (3.10)        0.00         0.00           (4.91)
 09/30/96                      39.08         (0.11)           6.12            6.01         0.00         0.00           (7.73)
 09/30/95                      28.87         (0.11)          11.19           11.08         0.00         0.00           (0.87)
 09/30/94                      33.43         (0.17)          (2.02)          (2.19)        0.00         0.00           (2.26)
 09/30/93                      19.84         (0.15)          14.00           13.85         0.00         0.00           (0.26)
 09/30/92                      17.95         (0.04)           3.61            3.57         0.00         0.00           (1.68)
 12/17/90-
  09/30/91                     11.78         (0.03)           6.20            6.17         0.00         0.00            0.00
 Class C
 06/30/98                      27.38         (0.46)(a)        3.88 (a)        3.42         0.00         0.00           (1.94)
 10/01/96-
  06/30/97                     35.38         (0.04)          (3.05)          (3.09)        0.00         0.00           (4.91)
 09/30/96                      37.64         (0.35)           5.82            5.47         0.00         0.00           (7.73)
 09/30/95                      28.04         (0.34)          10.81           10.47         0.00         0.00           (0.87)
 09/30/94                      32.77         (0.38)          (1.98)          (2.36)        0.00         0.00           (2.26)
 09/30/93                      19.60         (0.34)          13.77           13.43         0.00         0.00           (0.26)
 09/30/92                      17.87         (0.18)           3.59            3.41         0.00         0.00           (1.68)
 09/30/91                      11.93         (0.11)           6.42            6.31         0.00         0.00           (0.37)
 09/30/90                      15.78         (0.01)          (2.13)          (2.14)        0.00         0.00           (1.71)
 09/30/89                      11.84         (0.03)           3.97            3.94         0.00         0.00            0.00
<CAPTION>
Selected Per Share Data  Distributions
for the Period Ended:    in Excess of
                         Net Realized
                         Capital Gains
                         -------------
<S>                      <C>
Target Fund
 Class A
 06/30/98                  $   0.00
 10/01/96-
  06/30/97                     0.00
 09/30/96                      0.00
 09/30/95                      0.00
 09/30/94                      0.00
 12/17/92-
  09/30/93                     0.00
 Class B
 06/30/98                      0.00
 10/01/96-
  06/30/97                     0.00
 09/30/96                      0.00
 05/22/95-
  09/30/95                     0.00
 Class C
 06/30/98                      0.00
 10/01/96-
  06/30/97                     0.00
 09/30/96                      0.00
 09/30/95                      0.00
 09/30/94                      0.00
 12/17/92-
  9/30/93                      0.00
Small-Cap
 Value Fund
 Class A
 06/30/98                  $   0.00
 01/20/97-
  06/30/97                     0.00
 Class B
 06/30/98                      0.00
 01/20/97-
  06/30/97                     0.00
 Class C
 06/30/98                      0.00
 01/20/97-
  06/30/97                     0.00
Opportunity
 Fund
 Class A
 06/30/98                  $   0.00
 10/01/96-
  06/30/97                     0.00
 09/30/96                      0.00
 09/30/95                      0.00
 09/30/94                      0.00
 09/30/93                      0.00
 09/30/92                      0.00
 12/17/90-
  09/30/91                     0.00
 Class C
 06/30/98                      0.00
 10/01/96-
  06/30/97                     0.00
 09/30/96                      0.00
 09/30/95                      0.00
 09/30/94                      0.00
 09/30/93                      0.00
 09/30/92                      0.00
 09/30/91                      0.00
 09/30/90                      0.00
 09/30/89                      0.00
</TABLE>
 
*Annualized
 (a) Per share amounts based upon average number of shares outstanding during
     the period.


12  PIMCO Funds: Multi-Manager Series
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                               Ratio of Net
                                                                                   Ratio of    Investment
Distributions  Tax Basis                Net Asset                                  Expenses to Income (Loss) to
from           Return of  Total         Value End of              Net Assets End   Average Net Average Net      Portfolio
Equalization   Capital    Distributions Period       Total Return of Period (000s) Assets      Assets           Turnover Rate
- -------------  ---------  ------------- ------------ ------------ ---------------- ----------- ---------------- -------------
<S>            <C>        <C>           <C>          <C>          <C>              <C>         <C>              <C>
 
 
  $   0.00     $   0.00     $  (4.45)     $  16.35       27.49 %      $157,277         1.22%         (0.49)%           226%
      0.00         0.00        (2.07)        16.82       11.19         150,689         1.20*         (0.31)*           145
      0.00         0.00        (1.78)        17.11       16.50         156,027         1.18          (0.34)            141
      0.00         0.00        (0.16)        16.40       26.50         121,915         1.20          (0.10)            128
      0.00         0.00        (0.12)        13.13        4.20          90,527         1.20          (0.30)            104
      0.00         0.00         0.00         12.72       27.20          48,787         1.30*         (0.30)*            76
 
      0.00         0.00        (4.45)        15.34       26.45          76,194         1.96          (1.24)            226
      0.00         0.00        (2.07)        16.14       10.58          67,531         1.94*         (1.05)*           145
      0.00         0.00        (1.78)        16.58       15.58          49,851         1.93          (1.09)            141
      0.00         0.00         0.00         16.06       15.30           7,554         2.00*         (0.90)*           128
 
      0.00         0.00        (4.45)        15.34       26.53         952,728         1.96          (1.24)            226
      0.00         0.00        (2.07)        16.13       10.52         969,317         1.94*         (1.06)*           145
      0.00         0.00        (1.78)        16.58       15.66         974,948         1.93          (1.09)            141
      0.00         0.00        (0.16)        16.05       25.60         780,355         2.00          (0.90)            128
      0.00         0.00        (0.12)        12.95        3.40         556,043         2.00          (1.10)            104
      0.00         0.00         0.00         12.65       26.50         298,238         2.00*         (1.00)*            76
  $   0.00     $   0.00     $  (0.89)     $  17.58       17.33 %      $ 75,070         1.25%          1.27%             41%
      0.00         0.00         0.00         15.75       12.34           6,563         1.30*          1.94*             48
 
      0.00         0.00        (0.85)        17.43       16.40         110,833         2.00           0.53              41
      0.00         0.00         0.00         15.71       12.05          11,077         2.04*          1.23*             48
 
      0.00         0.00        (0.85)        17.44       16.42         130,466         2.00           0.52              41
      0.00         0.00         0.00         15.71       12.05          20,637         2.05*          1.13*             48
 
 
  $   0.00     $   0.00     $  (1.94)     $  31.33       13.87 %      $200,935         1.31%         (0.88)%            86%
      0.00         0.00        (4.91)        29.35       (8.87)        213,484         1.25*         (0.12)*            69
      0.00         0.00        (7.73)        37.36       18.35         134,859         1.13          (0.32)             91
      0.00         0.00        (0.87)        39.08       39.70         120,830         1.20          (0.40)            102
      0.00        (0.11)       (2.37)        28.87       (6.70)         95,261         1.10          (0.60)             78
      0.00         0.00        (0.26)        33.43       70.40         106,666         1.20          (0.60)            105
      0.00         0.00        (1.68)        19.84       21.60          22,454         1.30          (0.20)             94
      0.00         0.00         0.00         17.95       70.90           1,623         1.40*         (0.50)*           145
 
      0.00         0.00        (1.94)        28.86       13.01         500,011         2.06          (1.63)             86
      0.00         0.00        (4.91)        27.38       (9.40)        629,446         1.97*         (0.95)*            69
      0.00         0.00        (7.73)        35.38       17.47         800,250         1.88          (1.07)             91
      0.00         0.00        (0.87)        37.64       38.60         715,191         1.90          (1.10)            102
      0.00        (0.11)       (2.37)        28.04       (7.40)        553,460         1.90          (1.40)             78
      0.00         0.00        (0.26)        32.77       69.10         618,193         2.00          (1.30)            105
      0.00         0.00        (1.68)        19.60       20.80         179,081         2.00          (1.00)             94
      0.00         0.00        (0.37)        17.87       54.40          58,656         2.00          (0.80)            145
      0.00         0.00        (1.71)        11.93      (14.80)         33,472         1.90          (0.10)            106
      0.00         0.00         0.00         15.78       33.30          51,680         1.90          (0.20)            153
</TABLE>
                                               
                                                April   , 1999 Prospectus   13
                                                                               
<PAGE>
 

Financial Highlights (continued)
 
<TABLE>
<CAPTION>
                                                        Net Realized/                  Dividends  Dividends in  Distributions
Selected Per Share Data  Net Asset Value Net            Unrealized     Total Income    From Net   Excess of Net From Net
for the Period Ended:    Beginning       Investment     Gain (Loss) on From Investment Investment Investment    Realized Capital
                         of Period       Income (Loss)  Investments    Operations      Income     Income        Gains
                         --------------- -------------  -------------- --------------- ---------- ------------- ----------------
<S>                      <C>             <C>            <C>            <C>             <C>        <C>           <C>
International
 Fund (ii)
 Class A
 06/30/98                   $  14.26        $ 0.06 (a)      $ 1.13 (a)    $   1.19      $  0.00     $   0.00        $  (0.82)
 10/01/96-
  06/30/97                     13.03          0.29            1.33            1.62         0.00         0.00           (0.39)
 9/30/96                       12.19          0.07            0.77            0.84         0.00         0.00            0.00
 9/30/95                       12.92          0.07           (0.56)          (0.49)        0.00         0.00           (0.24)
 9/30/94                       12.17          0.04            0.94            0.98         0.00         0.00           (0.23)
 9/30/93                       10.04          0.07            2.80            2.87         0.00         0.00           (0.74)
 9/30/92                       10.54          0.05           (0.37)          (0.32)        0.00         0.00           (0.18)
 2/1/91-9/30/91                 9.48          0.02            1.04            1.06         0.00         0.00            0.00
 Class B
 06/30/98                      13.56         (0.05)(a)        1.07 (a)        1.02         0.00         0.00           (0.82)
 10/01/96-
  06/30/97                     12.48          0.16            1.31            1.47         0.00         0.00           (0.39)
 9/30/96                       11.75          0.00 (a)        0.73 (a)        0.73         0.00         0.00            0.00
 5/22/95-
  9/30/95                      11.30          0.00            0.45            0.45         0.00         0.00            0.00
 Class C
 06/30/98                      13.55         (0.06)(a)        1.08 (a)        1.02         0.00         0.00           (0.82)
 10/01/96-
  06/30/97                     12.47          0.18            1.29            1.47         0.00         0.00           (0.39)
 9/30/96                       11.75         (0.05)           0.77            0.72         0.00         0.00            0.00
 9/30/95                       12.56         (0.02)          (0.55)          (0.57)        0.00         0.00           (0.24)
 9/30/94                       11.92         (0.06)           0.93            0.87         0.00         0.00           (0.23)
 9/30/93                        9.92         (0.01)           2.75            2.74         0.00         0.00           (0.74)
 9/30/92                       10.49         (0.06)          (0.33)          (0.39)        0.00         0.00           (0.18)
 9/30/91                       10.04         (0.08)           1.76            1.68         0.00         0.00           (1.23)
 9/30/90                       13.33         (0.10)          (2.02)          (2.12)        0.00         0.00           (1.17)
 9/30/89                       10.07         (0.18)           3.44            3.26         0.00         0.00            0.00
Innovation Fund
 Class A
 06/30/98                   $  17.43        $(0.19)(a)      $ 8.21 (a)    $   8.02      $  0.00     $   0.00        $  (0.99)
 10/01/96-
  06/30/97                     17.26          0.07            0.36            0.43         0.00         0.00           (0.26)
 9/30/96                       14.74         (0.07)           2.94            2.87         0.00         0.00           (0.35)
 12/22/94-
  9/30/95                      10.00         (0.06)(b)        4.80            4.74         0.00         0.00            0.00
 Class B
 06/30/98                      17.10         (0.33)(a)        8.00 (a)        7.67         0.00         0.00           (0.99)
 10/01/96-
  06/30/97                     17.04         (0.03)           0.35            0.32         0.00         0.00           (0.26)
 9/30/96                       14.66         (0.11)           2.84            2.73         0.00         0.00           (0.35)
 5/22/95-
  9/30/95                      11.81         (0.08)           2.93            2.85         0.00         0.00            0.00
 Class C
 06/30/98                      17.09         (0.33)(a)        8.00 (a)        7.67         0.00         0.00           (0.99)
 10/01/96-
  06/30/97                     17.04         (0.02)           0.33            0.31         0.00         0.00           (0.26)
 9/30/96                       14.65         (0.15)           2.89            2.74         0.00         0.00           (0.35)
 12/22/94-
  9/30/95                      10.00         (0.13)(b)        4.78            4.65         0.00         0.00            0.00
<CAPTION>
Selected Per Share Data  Distributions
for the Period Ended:    in Excess of
                         Net Realized
                         Capital Gains
                         -------------
<S>                      <C>
International
 Fund (ii)
 Class A
 06/30/98                  $  (0.30)
 10/01/96-
  06/30/97                     0.00
 9/30/96                       0.00
 9/30/95                       0.00
 9/30/94                       0.00
 9/30/93                       0.00
 9/30/92                       0.00
 2/1/91-9/30/91                0.00
 Class B
 06/30/98                     (0.30)
 10/01/96-
  06/30/97                     0.00
 9/30/96                       0.00
 5/22/95-
  9/30/95                      0.00
 Class C
 06/30/98                     (0.30)
 10/01/96-
  06/30/97                     0.00
 9/30/96                       0.00
 9/30/95                       0.00
 9/30/94                       0.00
 9/30/93                       0.00
 9/30/92                       0.00
 9/30/91                       0.00
 9/30/90                       0.00
 9/30/89                       0.00
Innovation Fund
 Class A
 06/30/98                  $  (0.18)
 10/01/96-
  06/30/97                     0.00
 9/30/96                       0.00
 12/22/94-
  9/30/95                      0.00
 Class B
 06/30/98                     (0.18)
 10/01/96-
  06/30/97                     0.00
 9/30/96                       0.00
 5/22/95-
  9/30/95                      0.00
 Class C
 06/30/98                     (0.18)
 10/01/96-
  06/30/97                     0.00
 9/30/96                       0.00
 12/22/94-
  9/30/95                      0.00
</TABLE>
*Annualized
 (a)  Per share amounts based upon average number of shares outstanding during
      the period.
 (b)  Reflecting voluntary waiver of investment advisory fee of $4,666 (0.00
      per share) by the Adviser.
 (ii) The information provided for the International Fund reflects results of
      operations under the Fund's former investment objective and policies
      through August 31, 1992; such results would not necessarily have been
      achieved had the Fund's current objective and policies then been in
      effect. On November 15, 1994, Blairlogie became the Portfolio Manager of
      the Fund.


14  PIMCO Funds: Multi-Manager Series
<PAGE>
 
 
<TABLE>
<CAPTION>
                                                                                              Ratio of Net
                                                                                  Ratio of    Investment
Distributions  Tax Basis               Net Asset                                  Expenses to Income (Loss) to
from           Return of Total         Value End of              Net Assets End   Average Net Average Net      Portfolio
Equalization   Capital   Distributions Period       Total Return of Period (000s) Assets      Assets           Turnover Rate
- -------------  --------- ------------- ------------ ------------ ---------------- ----------- ---------------- -------------
<S>            <C>       <C>           <C>          <C>          <C>              <C>         <C>              <C>
  $   0.00     $   0.00    $  (1.12)     $  14.33        9.95 %      $ 12,510         1.48%          0.41%             60%
      0.00         0.00       (0.39)        14.26       12.82          18,287         1.51*          0.58*             59
      0.00         0.00        0.00         13.03        6.89          20,056         1.41           0.49             110
      0.00         0.00       (0.24)        12.19       (3.70)         17,951         1.50           0.60             170
      0.00         0.00       (0.23)        12.92        8.20          23,289         1.40           0.30              55
      0.00         0.00       (0.74)        12.17       30.40          11,992         1.40           0.60              68
      0.00         0.00       (0.18)        10.04       (3.10)            471         1.90           0.50             160
      0.00         0.00        0.00         10.54       17.30              22         1.90*          0.70*            107
 
      0.00         0.00       (1.12)        13.46        9.17           8,956         2.22          (0.37)             60
      0.00         0.00       (0.39)        13.56       12.17           8,676         2.26*          0.18*             59
      0.00         0.00        0.00         12.48        6.21           5,893         2.16          (0.26)            110
      0.00         0.00        0.00         11.75        4.00             503         2.30*         (0.10)*           170
      0.00         0.00       (1.12)        13.45        9.18         132,986         2.22          (0.43)             60
      0.00         0.00       (0.39)        13.55       12.18         168,446         2.25*         (0.25)*            59
      0.00         0.00        0.00         12.47        6.13         203,544         2.16          (0.26)            110
      0.00         0.00       (0.24)        11.75       (4.50)        215,349         2.20          (0.20)            170
      0.00         0.00       (0.23)        12.56        7.40         294,492         2.20          (0.50)             55
      0.00         0.00       (0.74)        11.92       29.40         147,194         2.20          (0.10)             68
      0.00         0.00       (0.18)         9.92       (3.80)         28,299         2.60          (0.60)            160
      0.00         0.00       (1.23)        10.49       18.30          33,594         2.60          (0.20)            107
      0.00         0.00       (1.17)        10.04      (17.40)         36,282         2.30          (0.30)             93
      0.00         0.00        0.00         13.33       32.40          56,150         2.30          (0.70)             84
 
 
  $   0.00     $   0.00    $  (1.17)     $  24.28       48.10 %      $ 85,800         1.31%         (0.94)%           100%
      0.00         0.00       (0.26)        17.43        2.41          56,215         1.28*         (0.68)*            80
      0.00         0.00       (0.35)        17.26       19.86          50,067         1.31          (0.61)            123
      0.00         0.00        0.00         14.74       47.40          28,239         1.40*         (0.60)*            86
 
      0.00         0.00       (1.17)        23.60       46.95          81,130         2.06          (1.69)            100
      0.00         0.00       (0.26)        17.10        1.79          51,472         2.03*         (1.43)*            80
      0.00         0.00       (0.35)        17.04       18.99          33,778         2.06          (1.36)            123
      0.00         0.00        0.00         14.66       24.10           6,509         2.30*         (1.70)*            86
      0.00         0.00       (1.17)        23.59       46.97         219,258         2.06          (1.69)            100
      0.00         0.00       (0.26)        17.09        1.73         162,889         2.03*         (1.43)*            80
      0.00         0.00       (0.35)        17.04       19.08         137,752         2.06          (1.36)            123
      0.00         0.00        0.00         14.65       46.50          63,952         2.20*         (1.40)*            86
 
 
</TABLE>
                                                
                                                  April   , 1999 Prospectus  15
                                                                               
<PAGE>
 

Financial Highlights (continued)
 
<TABLE>
<CAPTION>
                                                        Net Realized/                  Dividends  Dividends in  Distributions
Selected Per Share Data: Net Asset Value Net            Unrealized     Total Income    From Net   Excess of Net From Net
for the Period Ended:    Beginning       Investment     Gain (Loss) on From Investment Investment Investment    Realized Capital
                         of Period       Income (Loss)  Investments    Operations      Income     Income        Gains
                         --------------- -------------  -------------- --------------- ---------- ------------- ----------------
<S>                      <C>             <C>            <C>            <C>             <C>        <C>           <C>
Precious Met-
 als Fund
 (iii)
 Class A
 06/30/98                   $   8.83        $ 0.04 (a)      $(3.54)(a)    $  (3.50)     $  0.00     $   0.00        $   0.00
 10/01/96-
  06/30/97                     12.12          0.17           (3.29)          (3.12)        0.00         0.00            0.00
 9/30/96                       12.33          0.03           (0.24)          (0.21)        0.00         0.00            0.00
 9/30/95                       14.14          0.07           (1.88)          (1.81)        0.00         0.00            0.00
 9/30/94                       10.32          0.08            3.74            3.82         0.00         0.00            0.00
 9/30/93                        7.54          0.06            2.72            2.78         0.00         0.00            0.00
 9/30/92                        7.51         (0.01)           0.04            0.03         0.00         0.00            0.00
 2/1/91-
  9/30/91                       7.19         (0.07)           0.39            0.32         0.00         0.00            0.00
 Class B
 06/30/98                       8.42         (0.01)(a)       (3.40)(a)       (3.41)        0.00         0.00            0.00
 10/01/96-
  06/30/97                     11.62          0.00           (3.03)          (3.03)        0.00         0.00            0.00
 9/30/96                       11.90         (0.03)          (0.25)          (0.28)        0.00         0.00            0.00
 6/15/95-
  9/30/95                      11.61         (0.01)           0.30            0.29         0.00         0.00            0.00
 Class C
 06/30/98                       8.43          0.00 (a)       (3.43)(a)       (3.43)        0.00         0.00            0.00
 10/01/96-
  06/30/97                     11.62         (0.03)          (2.99)          (3.02)        0.00         0.00            0.00
 9/30/96                       11.90         (0.07)          (0.21)          (0.28)        0.00         0.00            0.00
 9/30/95                       13.75         (0.02)          (1.83)          (1.85)        0.00         0.00            0.00
 9/30/94                       10.11         (0.02)           3.66            3.64         0.00         0.00            0.00
 9/30/93                        7.44         (0.02)           2.69            2.67         0.00         0.00            0.00
 9/30/92                        7.46         (0.06)           0.04           (0.02)        0.00         0.00            0.00
 9/30/91                        9.40         (0.05)          (1.89)          (1.94)        0.00         0.00            0.00
 9/30/90                        9.86         (0.05)          (0.41)          (0.46)        0.00         0.00            0.00
 10/10/88-
  9/30/89                      10.00         (0.05)          (0.08)          (0.13)       (0.01)        0.00            0.00
<CAPTION>
Selected Per Share Data  Distributions
for the Period Ended:    in Excess of
                         Net Realized
                         Capital Gains
                         -------------
<S>                      <C>
Precious Met-
 als Fund
 (iii)
 Class A
 06/30/98                  $   0.00
 10/01/96-
  06/30/97                    (0.17)
 9/30/96                       0.00
 9/30/95                       0.00
 9/30/94                       0.00
 9/30/93                       0.00
 9/30/92                       0.00
 2/1/91-
  9/30/91                      0.00
 Class B
 06/30/98                      0.00
 10/01/96-
  06/30/97                    (0.17)
 9/30/96                       0.00
 6/15/95-
  9/30/95                      0.00
 Class C
 06/30/98                      0.00
 10/01/96-
  06/30/97                    (0.17)
 9/30/96                       0.00
 9/30/95                       0.00
 9/30/94                       0.00
 9/30/93                       0.00
 9/30/92                       0.00
 9/30/91                       0.00
 9/30/90                       0.00
 10/10/88-
  9/30/89                      0.00
</TABLE>
*Annualized
 (a)   Per share amounts based upon average number of shares outstanding during
       the period.
 (b)   Ratio of expenses to average net assets excluding overdraft expense is
       1.26%.
 (c)   Ratio of expenses to average net assets excluding overdraft expense is
       2.06%.
 (d)   Ratio of expenses to average net assets excluding overdraft expense is
       2.06%.
 (iii) The information provided for the Precious Metals Fund reflects results
       of operations under the Fund's former investment objective and policies
       through November 14, 1994; such results would not necessarily have been
       achieved had the Fund's current objective and policies then been in
       effect.


16   PIMCO Funds: Multi-Manager Series
<PAGE>
 
 
<TABLE>
<CAPTION>
                                                                                                Ratio of Net
                                                                                  Ratio of      Investment
Distributions  Tax Basis               Net Asset                                  Expenses to   Income to
from           Return of Total         Value End of              Net Assets End   Average Net   Average Net  Portfolio
Equalization   Capital   Distributions Period       Total Return of Period (000s) Assets        Assets       Turnover Rate
- -------------  --------- ------------- ------------ ------------ ---------------- -----------   ------------ -------------
<S>            <C>       <C>           <C>          <C>          <C>              <C>           <C>          <C>
 
  $   0.00     $   0.00    $   0.00      $   5.33      (39.64)%      $  4,709         1.31%(b)       0.70%           56%
      0.00         0.00       (0.17)         8.83      (26.05)          4,016         1.37*          0.33*           46
      0.00         0.00        0.00         12.12       (1.70)          6,245         1.32           0.19            35
      0.00         0.00        0.00         12.33      (12.80)          7,670         1.40           0.60             9
      0.00         0.00        0.00         14.14       37.00          11,229         1.30           0.60            11
      0.00         0.00        0.00         10.32       36.90           3,425         1.40           0.60            10
      0.00         0.00        0.00          7.54        0.40             668         1.90          (0.10)           30
      0.00         0.00        0.00          7.51        6.80             514         2.10*         (1.40)*          19
 
      0.00         0.00        0.00          5.01      (40.50)          3,889         2.11(c)       (0.07)           56
      0.00         0.00       (0.17)         8.42      (26.40)          4,248         2.13*         (0.33)*          46
      0.00         0.00        0.00         11.62       (2.35)          2,218         2.07          (0.56)           35
      0.00         0.00        0.00         11.90        2.50             251         2.20*         (0.20)*           9
      0.00         0.00        0.00          5.00      (40.69)         16,943         2.11(d)       (0.07)           56
      0.00         0.00       (0.17)         8.43      (26.31)         25,113         2.15*         (0.41)*          46
      0.00         0.00        0.00         11.62       (2.35)         37,609         2.07          (0.56)           35
      0.00         0.00        0.00         11.90      (13.50)         42,341         2.20          (0.20)            9
      0.00         0.00        0.00         13.75       36.00          62,825         2.10          (0.20)           11
      0.00         0.00        0.00         10.11       35.90          23,884         2.20          (0.20)           10
      0.00         0.00        0.00          7.44       (0.30)          6,633         2.60          (0.80)           30
      0.00         0.00        0.00          7.46      (20.60)          6,995         2.40          (0.80)           19
      0.00         0.00        0.00          9.40       (4.70)          9,918         2.40          (0.80)           23
      0.00         0.00       (0.01)         9.86       (1.30)          6,630         2.50          (0.60)            9
 
</TABLE>
                                                
                                                  April   , 1999 Prospectus   17
                                                                                
<PAGE>
 
            Investment Objectives and Policies

            The investment objective and general investment policies of each
            Fund are described below. There can be no assurance that the
            investment objective of any Fund will be achieved. Because the mar-
            ket value of each Fund's investments will change, the net asset
            value per share of each Fund will also vary. Specific portfolio
            securities eligible for purchase by the Funds, investment
            techniques that may be used by the Funds, and the risks associated
            with these securities and techniques are described more fully under
            "Characteristics and Risks of Securities and Investment Tech-
            niques" in this Prospectus and "Investment Objectives and Policies"
            in the Statement of Additional Information. For information on
            other investment policies of the Equity Income, Value, Renaissance,
            Tax-Efficient Equity, Capital Appreciation, Growth, Value 25, Mid-
            Cap Growth, Target, Small-Cap Value, Opportunity, International,
            Innovation and Precious Metals Funds (together, the "Stock Funds"),
            see "Investment Objectives and Policies--Stock Funds" below. This
            information is also relevant to an investment in the Balanced Fund
            because the Common Stock Segment (as described below) of that Fund
            is managed in accordance with the investment policies of the Value
            and Capital Appreciation Funds. For information regarding the
            average portfolio duration of the Fixed Income Securities Segment
            (as described below) of the Balanced Fund, see "Balanced Fund--
            Duration" below.
 
 
Fund        Balanced Fund seeks total return consistent with prudent invest-
Descrip-    ment management. The Fund attempts to achieve this objective
tions       through a management policy of investing in the following asset
            classes: common stock, fixed income securities, and money market
            instruments. The proportion of the Fund's total assets allocated
            among common stocks, fixed income securities, and money market in-
            struments will vary from time to time and will be determined by
            the Adviser. In determining the allocation of the Fund's assets
            among the three asset classes, the Adviser will employ asset allo-
            cation principles which take into account certain economic fac-
            tors, market conditions, and the expected relative total return
            and risk of the various asset classes. Under normal circumstances,
            it is anticipated that the Fund will generally maintain a balance
            among the types of securities in which it invests. Thus, the Fund
            will normally maintain 40% to 65% of its assets in common stock,
            at least 25% of its assets in fixed income securities, and less
            than 10% of its assets in money market instruments. However, in no
            event would the Fund invest in any common stock if, at the time of
            investment, more than 80% of the Fund's assets would be invested
            in common stock; in no event would the Fund invest in a fixed in-
            come security (other than a short-term instrument) if, at the time
            of investment, more than 80% of the Fund's assets would be in-
            vested in fixed income securities; nor would the Fund invest in a
            money market instrument if, at the time of investment, more than
            60% of its assets would be invested in money market instruments.
               In managing the Fund, the Adviser uses a specialist approach
            and has engaged three of the Trust's Portfolio Managers to manage
            certain portions of the Fund's assets. The portion of the assets
            of the Fund allocated by the Adviser for investment in common
            stock (the "Common Stock Segment") will be further allocated by
            the Adviser for investment by NFJ and Cadence. The portion of the
            Common Stock Segment allocated to NFJ will be managed in accor-
            dance with the investment policies of the Value Fund; the portion
            allocated to Cadence will be managed in accordance with the in-
            vestment policies of the Capital Appreciation Fund. Allocations of
            the Common Stock Segment to NFJ and Cadence will vary from time to
            time as determined by the Adviser.
            The portion of the assets of the Fund allocated by the Adviser for
            investment in fixed income securities (the "Fixed Income Securities
            Segment") will be managed by Pacific Investment Management. The
            Fund may invest the Fixed Income Securities Segment in the
            following types of securities: securities issued or guaranteed by
            the U.S. Government, its agencies or instrumentalities; corporate
            debt securities, including convertible securities and corporate
            commercial paper; mortgage-related and other asset-backed
            securities; inflation-indexed bonds issued by both governments and
            cor-porations; structured notes, including hybrid or "indexed"
            securities, catastrophe bonds and loan participations; delayed
            funding loans and revolving credit facilities; bank certificates of
            deposit, fixed time deposits and bankers' acceptances; repurchase
            agreements and reverse repurchase agreements; obligations of
            foreign governments or their subdivisions, agencies and
            instrumental-ities; and obligations of international agencies or
            supranational entities. Fixed income securities may have fixed,
            variable, or floating rates of interest.


18   PIMCO Funds: Multi-Manager Series
<PAGE>
 

               The Fund invests the Fixed Income Securities Segment in fixed
            income securities of varying maturities. Portfolio holdings will be
            concentrated in areas of the bond market (based on quality, sector,
            coupon or maturity) that Pacific Investment Management believes to
            be relatively undervalued. Fixed income securities in which the
            Fund may invest will, at the time of investment, be rated Baa or
            better by Moody's Investors Service, Inc. ("Moody's"), BBB or
            better by Standard & Poor's Ratings Services ("S&P") or, if not
            rated by Moody's or S&P, will be of comparable quality as
            determined by Pacific Investment Management, except that up to 10%
            of the Fixed Income Securities Segment may be invested in lower
            rated securities that are rated B or higher by Moody's or S&P or,
            if not rated by Moody's or S&P, determined by Pacific Investment
            Management to be of comparable quality. High yield fixed income
            securities rated lower than Baa by Moody's or BBB by S&P, or of
            equivalent quality, are not considered to be investment grade, and
            are commonly referred to as "junk bonds." Se-curities rated below
            investment grade and comparable unrated securities are subject to
            greater risks than higher quality fixed in-come securities. See
            "Characteristics and Risks of Securities and Investment Techniques--
            Risks of High Yield Securities ("Junk Bonds")." The Fund also may
            invest up to 20% of the Fixed Income Securities Segment in
            securities denominated in foreign currencies, and may invest beyond
            this limit in U.S. dollar-denominated securities of foreign
            issuers. Investing in securities denominated in foreign currencies
            and securities of foreign issuers involves special risks and
            considerations not typically associated with investing in U.S.
            securities. For a discussion of such risks, see "Characteristics
            and Risks of Securities and Investment Techniques--Foreign
            Securities."
               Each Portfolio Manager generally invests a portion of its
            allocation in liquid securities to facilitate redemptions. In addi-
            tion, PIMCO Advisors reserves the right to allocate a portion of
            the Fund's assets (the "Money Market Segment") for investment in
            money market instruments and reserves the right to manage the
            investment of such assets. Because of the Fund's flexible
            investment policy, portfolio turnover may be greater than for a
            fund that does not allocate assets among various types of
            securities. See "Characteristics and Risks of Securities and
            Investment Techniques--Portfolio Turnover."
               The Fund may engage in the purchase and writing of put and call
            options on debt securities and securities indexes and may also
            purchase or sell interest rate futures contracts, stock index
            futures contracts, and options thereon. The Fund also may enter
            into swap agreements with respect to foreign currencies, interest
            rates, and securities indexes. With respect to securities of the
            Fixed Income Securities Segment denominated in foreign currencies,
            the Fund may engage in foreign currency exchange transactions by
            means of buying or selling foreign currencies on a spot basis, en-
            tering into forward foreign currency contracts, and buying and
            selling foreign currency options, foreign currency futures, and
            options on foreign currency futures. Foreign currency exchange
            transactions may be entered into for the purpose of hedging
            against foreign currency exchange risk arising from the Fund's in-
            vestment or anticipated investment in securities denominated in
            foreign currencies and for purposes of increasing exposure to a
            particular foreign currency or to shift exposure to foreign cur-
            rency fluctuations from one country to another.
               Duration. Under normal circumstances, the average portfolio
            duration of the Fixed Income Securities Segment of the Balanced
            Fund will vary within a three- to six-year time frame based on the
            Portfolio Manager's forecast for interest rates. Duration is a
            measure of the expected life of a fixed income security that was
            developed as a more precise alternative to the concept of "term to
            maturity." Traditionally, a fixed income security's "term to
            maturity" has been used as proxy for the sensitivity of the
            security's price to changes in interest rates (which is the
            "interest rate risk" or "volatility" of the security). However,
            "term to maturity" measures only the time until a fixed income
            security provides its final payment, taking no account of the
            pattern of the security's payments prior to maturity. In contrast,
            duration incorporates a bond's yield, coupon interest payments,
            final maturity and call features into one measure of the average
            life of a fixed income security on a present value basis. Duration
            management is one of the fundamental tools used by the Portfolio
            Manager for the Fixed Income Securities Segment of the Balanced
            Fund. For more information on investments in fixed income
            securities, see "Characteristics and Risks of Securities and
            Investment Techniques" in this Prospectus and "Investment
            Objectives and Policies" in the Statement of Additional
            Information.


                                                 
                                                 April   , 1999 Prospectus    19
                                                                               
<PAGE>
 
 
            Equity Income Fund seeks current income as a primary investment
            objective, and long-term growth of capital as a secondary objec-
            tive. The Fund invests primarily in common stocks characterized by
            having below-average price to earnings ("P/E") ratios and higher
            dividend yields relative to their industry groups. In selecting
            securities, the Portfolio Manager classifies a universe of approx-
            imately 2,000 stocks by industry, each of which has a minimum mar-
            ket capitalization of $200 million at the time of investment. The
            universe is then screened to find the lowest P/E ratios in each
            industry, subject to application of quality and price momentum
            screens. From this group, approximately 25 stocks with the highest
            yields are chosen for the Fund. The universe is then rescreened to
            find the highest yielding stock in each industry, subject to ap-
            plication of quality and price momentum screens. From this group,
            approximately 25 stocks with the lowest P/E ratios are added to
            the Fund. Although quarterly rebalancing is a general rule, re-
            placements are made whenever an alternative stock within the same
            industry has a significantly lower P/E ratio or higher dividend
            yield than the current Fund holding. The Portfolio Manager for the
            Equity Income Fund is NFJ.
               
            Value Fund seeks long-term growth of capital and income. The Fund
            invests primarily in common stocks characterized by having below-
            average P/E ratios relative to their industry groups. In selecting
            securities, the Portfolio Manager classifies a universe of approx-
            imately 2,000 stocks by industry, each of which has a minimum mar-
            ket capitalization of $200 million at the time of investment. The
            universe is then screened to find the stocks with the lowest P/E
            ratios in each industry, subject to application of quality and
            price momentum screens. The stocks in each industry with the low-
            est P/E ratios that pass the quality and price momentum screens
            are then selected for the Fund. The Fund usually invests in ap-
            proximately 50 stocks, although the Fund may reduce its holdings
            below this number (normally not below 30 stocks) if the Portfolio
            Manager believes that this would help the Fund to achieve its in-
            vestment objective. Although quarterly rebalancing is a general
            rule, replacements are made whenever an alternative stock within
            the same industry has a significantly lower P/E ratio than the
            current Fund holdings. The Portfolio Manager for the Value Fund is
            NFJ.     
 
            Renaissance Fund seeks long-term growth of capital and income. The
            Fund invests primarily in common stocks having below-average valu-
            ations whose issuers are experiencing improvements in their busi-
            ness fundamentals. Relative valuation is determined using a multi-
            factor approach that examines characteristics such as price to
            book, price to earnings and price to cash flow ratios. Stocks
            which pass the valuation screen are further analyzed to identify
            the key drivers of financial results and catalysts for change
            which indicate that a company may demonstrate improving fundamen-
            tals in the future. Stocks which appear likely to exceed consensus
            expectations are candidates for addition to the Fund's portfolio.
            Stocks are sold from the Fund's portfolio when the Portfolio Man-
            ager believes that their ability to exceed investor expectations
            has diminished or when their valuations have become excessive.
               The Fund may invest a portion of its assets in securities of
            foreign issuers traded in foreign securities markets (not includ-
            ing Eurodollar certificates of deposit), which will not exceed 15%
            of the Fund's assets at the time of investment. Investing in the
            securities of foreign issuers involves special risks and consider-
            ations not typically associated with investing in U.S. securities.
            For a discussion of such risks, see "Characteristics and Risks of
            Securities and Investment Techniques--Foreign Securities." The
            Fund may also purchase and write call and put options on securi-
            ties and securities indexes; enter into futures contracts and use
            options on futures contracts; buy or sell foreign currencies; and
            enter into forward foreign currency contracts. The Portfolio Man-
            ager for the Renaissance Fund is Columbus Circle.
 
            Tax-Efficient Equity Fund seeks maximum after-tax growth of capi-
            tal. The Fund attempts to provide a total return which exceeds the
            return of the Standard & Poor's 500 Composite Stock Price Index
            (the "S&P 500"). In addition, the Fund seeks to achieve superior
            after-tax returns for its shareholders in part by minimizing the
            taxes they incur in connection with the Fund's investment income
            and realized capital gains by using the strategies described be-
            low. Notwithstanding these strategies, the Fund may have taxable
            investment income and may realize taxable gains from time to time.


20 PIMCO Funds: Multi-Manager Series

<PAGE>
 
               
               The Fund invests primarily in a broadly diversified portfolio
            of at least 200 common stocks. Normally, at least 95% of the
            Fund's assets will be invested in stocks represented in the S&P
            500 and the Fund's portfolio is designed to have certain charac-
            teristics that are similar to those of the index. These character-
            istics include such measures as dividend yield, P/E ratio, rela-
            tive volatility, economic sector exposure, return on equity and
            market price-to-book value ratio. However, the Portfolio Manager
            attempts to construct a portfolio that produces a higher total re-
            turn than the S&P 500 by using the quantitative security selection
            techniques described below. Of course, there can be no assurance
            that the Fund's investment performance will equal or exceed that
            of the S&P 500.     
               
               In selecting specific securities, the Portfolio Manager uses a
            proprietary quantitative model that ranks companies based on long-
            term (5-10 years) price appreciation potential through analysis of
            such factors as growth of sustainable earnings and dividend behav-
            ior. Securities in the top 50% of the model's ranking are consid-
            ered for purchase. The Portfolio Manager's sell discipline incor-
            porates a focus on reducing the realization of capital gains. Each
            sell candidate is evaluated based on its cost, current market val-
            ue, and anticipated benefit of replacement. Securities in the bot-
            tom 20% of the model's ranking are considered for sale. The Fund
            may engage in the purchase and writing of options on securities
            indexes and may also invest in stock index futures contracts and
            options thereon.     
               The Portfolio Manager utilizes a range of active tax management
            techniques to minimize taxable distributions, including: low port-
            folio turnover; emphasis towards low-dividend, growth-oriented
            companies; tax lot accounting (identification of specific shares
            of securities being sold that have the lowest tax cost); and regu-
            lar rebalancing to capture available tax credits. The Fund will
            generally seek to avoid realizing net short-term capital gains
            and, when realizing gains, will attempt to realize long-term gains
            (i.e., gains on securities held for more than 12 months). The Fund
            intends to notify each shareholder as to that portion of his or
            her capital gain dividends which qualifies for a long-term tax
            rate of 20% in the hands of the shareholder. Net short-term capi-
            tal gains, when distributed, will be taxed as ordinary income, at
            graduated rates of up to 39.6%. When the Fund decides to sell a
            particular appreciated security, it will normally select for sale
            first those share lots with holding periods exceeding 12 months
            and among those, the share lots with the highest cost basis. The
            Fund may, when prudent, sell securities to realize capital losses
            that can be used to offset realized capital gains.
               To protect against price declines in securities holdings with
            large accumulated capital gains, the Fund may, to the extent per-
            mitted by law, use hedging techniques such as the purchase of put
            options, the sale of stock index futures contracts and equity
            swaps. By using these techniques rather than selling such securi-
            ties, the Fund can reduce its exposure to price declines in the
            securities without realizing substantial capital gains. In limited
            circumstances, the Fund may follow the practice of distributing
            selected appreciated securities to meet redemptions of certain in-
            vestors and may, within certain limits, use the selection of secu-
            rities distributed to meet such redemptions as a management tool.
            By distributing appreciated securities the Fund can reduce its po-
            sition in such securities without realizing capital gains. During
            periods of net withdrawals by investors, using distributions of
            securities could enable the Fund to avoid the forced sale of secu-
            rities to raise cash for meeting redemptions.
               It is expected that by employing the various tax-efficient man-
            agement strategies described above, the Fund can minimize the ex-
            tent to which shareholders incur taxes as a result of realized
            capital gains. The Fund may nevertheless realize gains and share-
            holders will incur tax liability from time to time. The Portfolio
            Manager for the Tax-Efficient Equity Fund is Parametric.
 
            Capital Appreciation Fund seeks growth of capital. The Fund in-
            vests primarily in common stocks of companies that have improving
            fundamentals (such as growth of earnings and dividends) and whose
            stock is reasonably valued by the market. Stocks for the Fund are
            selected from a universe of the approximately 1,000 largest market
            capitalization stocks, all of which are those of companies with
            market capitalizations of at least $1 billion at the time of in-
            vestment. The Fund usually invests in approximately 60 to 100 com-
            mon stocks. Each issue is screened and ranked using five distinct
            computerized models, including: (i) a dividend growth screen, (ii)
            an equity growth screen, (iii) an earnings growth screen, (iv) an
            earnings momentum screen, and (v) an earnings surprise screen. The
            Portfolio Manager

                                                 
                                              April   , 1999 Prospectus   21    

<PAGE>
 
            believes that the models identify the stocks in the universe ex-
            hibiting growth characteristics with reasonable valuations. Stocks
            are replaced when they score worse-than-median screen ranks, have
            negative earnings surprises, or show poor relative price perfor-
            mance. The universe is rescreened frequently to obtain a favorable
            composition of growth and value characteristics for the entire
            Fund. The Portfolio Manager for the Capital Appreciation Fund is
            Cadence.
               
            Growth Fund seeks long-term growth of capital. Income is an inci-
            dental consideration. The Fund invests primarily in common stocks
            of companies with market capitalizations of at least $5 billion at
            the time of investment. The Fund may invest a portion of its as-
            sets in securities of foreign issuers traded in foreign securities
            markets (not including Eurodollar certificates of deposit), which
            will not exceed 15% of the Fund's assets at the time of invest-
            ment. Investing in the securities of foreign issuers involves spe-
            cial risks and considerations not typically associated with in-
            vesting in U.S. companies. For a discussion of such risks, see
            "Characteristics and Risks of Securities and Investment Tech-
            niques--Foreign Securities." The Fund may also purchase and write
            call and put options on securities and securities indexes; enter
            into futures contracts and use options on futures contracts; buy
            or sell foreign currencies; and enter into forward foreign cur-
            rency contracts. The Portfolio Manager for the Growth Fund is the
            PIMCO Equity Advisors Division of PIMCO Advisors.     
 
            Value 25 Fund seeks long-term growth of capital and income. The
            Fund invests primarily in a portfolio of approximately 25 common
            stocks of companies with medium market capitalizations and below-
            average P/E ratios relative to their industry groups. In selecting
            securities, the Portfolio Manager classifies a universe of more
            than 2,000 stocks by industry, each of which has a minimum market
            capitalization of $200 million. The universe is then screened to
            find stocks with the lowest P/E ratios in each industry, subject
            to application of quality, earnings momentum and price momentum
            screens. Those stocks which pass the screenings and satisfy the
            medium-cap size criteria are further analyzed. Fundamental re-
            search is performed on the companies determined by such process to
            be the most undervalued. Approximately 25 stocks, diversified
            across industries, are selected on an equal-weighted basis for the
            Fund's portfolio. Although quarterly rebalancing is a general
            rule, replacements are made whenever an alternative stock has a
            significantly lower P/E ratio than the current Fund holdings. Be-
            cause the Fund concentrates on approximately 25 stocks at any one
            time (and is not as diversified as many stock funds), it is in-
            tended for aggressive investors seeking above-average capital
            gains and willing to accept the greater risks associated there-
            with. The Portfolio Manager for the Value 25 Fund is NFJ.
 
            Mid-Cap Growth Fund seeks growth of capital. The Fund invests pri-
            marily in common stocks of middle capitalization companies that
            have improving fundamentals (such as growth of earnings and divi-
            dends) and whose stock is reasonably valued by the market. Stocks
            for the Fund are selected from a universe of companies with market
            capitalizations in excess of $500 million at the time of invest-
            ment, excluding the 200 companies with the highest market capital-
            ization. The Fund usually invests in approximately 60 to 100 com-
            mon stocks. Each issue is screened and ranked using five distinct
            computerized models, including: (i) a dividend growth screen, (ii)
            an equity growth screen, (iii) an earnings growth screen, (iv) an
            earnings momentum screen, and (v) an earnings surprise screen. The
            Portfolio Manager believes that the models identify the stocks in
            the universe exhibiting growth characteristics with reasonable
            valuations. Stocks are replaced when they score worse-than-median
            screen ranks, have negative earnings surprises, or show poor rela-
            tive price performance. The universe is rescreened frequently to
            obtain a favorable composition of growth and value characteristics
            for the entire Fund. The Portfolio Manager for the Mid-Cap Growth
            Fund is Cadence.
               
            Target Fund seeks capital appreciation. No consideration is given
            to income. The Fund invests primarily in common stocks of compa-
            nies with market capitalizations of between $1 billion and $10
            billion at the time of investment. The     


22  PIMCO Funds: Multi-Manager Series

<PAGE>
 
               
            Fund may invest a portion of its assets in securities of foreign
            issuers traded in foreign securities markets (not including Euro-
            dollar certificates of deposit), which will not exceed 15% of the
            Fund's assets at the time of investment. Investing in the securi-
            ties of foreign issuers involves special risks and considerations
            not typically associated with investing in U.S. companies. For a
            discussion of such risks, see "Characteristics and Risks of Secu-
            rities and Investment Techniques--Foreign Securities." The Fund
            may also purchase and write call and put options on securities and
            securities indexes; enter into futures contracts and use options
            on futures contracts; buy or sell foreign currencies; and enter
            into forward foreign currency contracts. The Portfolio Manager for
            the Target Fund is the PIMCO Equity Advisors Division of PIMCO Ad-
            visors.     
               
            Small-Cap Value Fund seeks long-term growth of capital and income.
            The Fund invests primarily in common stocks of companies with mar-
            ket capitalizations between $50 million and $1 billion at the time
            of investment. In selecting securities, the Portfolio Manager di-
            vides a universe of up to approximately 2,000 stocks into quar-
            tiles based upon P/E ratio. The lowest quartile in P/E ratio is
            screened for market capitalizations between $50 million and $1
            billion, subject to application of quality and price momentum
            screens. Approximately 100 stocks with the lowest P/E ratios are
            combined in the Fund, subject to limits on the weighting for any
            one industry. Although quarterly rebalancing is a general rule,
            replacements are made whenever a holding achieves a higher P/E ra-
            tio than the S&P 500's P/E ratio or its industry average P/E ra-
            tio, or when an alternative stock within the same industry has a
            significantly lower P/E ratio than the current Fund holding. The
            Fund is intended for aggressive investors seeking above-average
            gains and willing to accept the greater risks associated there-
            with. The Portfolio Manager for the Small-Cap Value Fund is NFJ.
                   
            Opportunity Fund seeks capital appreciation. No consideration is
            given to income. [Except to the extent described under "How to Buy
            Shares--Restrictions on Sales of and Exchanges for Shares of the
            Opportunity Fund," the Fund is closed to new investors.] The Fund
            invests primarily in common stocks of companies with market capi-
            talizations of less than $2 billion at the time of investment. The
            Fund is intended for aggressive investors seeking above-average
            gains and willing to accept the greater risks associated there-
            with.     
               
               The Fund may invest a portion of its assets in securities of
            foreign issuers traded in foreign securities markets (not includ-
            ing Eurodollar certificates of deposit), which will not exceed 15%
            of the Fund's assets at the time of investment. Investing in the
            securities of foreign issuers involves special risks and consider-
            ations not typically associated with investing in U.S. companies.
            For a discussion of such risks, see "Characteristics and Risks of
            Securities and Investment Techniques--Foreign Securities." The
            Fund may also purchase and write call and put options on securi-
            ties and securities indexes; enter into futures contracts and use
            options on futures contracts; buy or sell foreign currencies; and
            enter into forward foreign currency contracts. The Portfolio Man-
            ager for the Opportunity Fund is the PIMCO Equity Advisors Divi-
            sion of PIMCO Advisors.     
 
            International Fund seeks capital appreciation through investments
            in an international portfolio. Income is an incidental considera-
            tion. Under normal market conditions, at least 65% of the Fund's
            total assets will be invested in common stocks, which may or may
            not pay dividends, as well as convertible bonds, convertible pre-
            ferred stocks, warrants, rights or other equity securities, for a
            combination of capital appreciation and income. Convertible secu-
            rities may include securities convertible only by certain classes
            of investors (which may not include the Fund). The Fund may not
            invest in convertible securities which are of less than investment
            grade quality at the time of purchase.
               The Fund will normally invest in securities traded in developed
            foreign securities markets. Particular consideration is given to
            investments principally traded in developed North American (other
            than United States), Japanese, European, Pacific and Australian
            securities markets, and in securities of foreign issuers traded on
            U.S. securities markets. The Fund will also invest in emerging
            markets, where markets may not yet fully reflect the potential of
            the developing economy. There are no prescribed limits on geo-
            graphic asset distribution and the Fund has the authority to in-
            vest in securities traded in securities markets of any country in
            the world. In allocating the Fund's assets among the
 
                                                 
                                              April   , 1999 Prospectus   23    

<PAGE>
 
            various securities markets of any country of the world, the Port-
            folio Manager will consider such factors as the condition and
            growth potential of the various economies and securities markets,
            currency and taxation considerations and other pertinent finan-
            cial, social, national and political factors. Under certain ad-
            verse investment conditions, the Fund may restrict the number of
            securities markets in which its assets will be invested, although
            under normal market circumstances the Fund's investments will in-
            clude securities principally traded in at least three different
            countries. The Fund will not limit its investments to any particu-
            lar type or size of company.
               The Fund may invest up to 10% of its assets in securities of
            other investment companies, such as closed-end management invest-
            ment companies which invest in foreign markets. The Fund may also
            purchase and write call and put options on securities, securities
            indexes, and on foreign currencies; enter into futures contracts
            and use options on futures contracts, including futures contracts
            on foreign currencies; buy or sell foreign currencies; and enter
            into forward foreign currency contracts. The Fund may utilize
            stock index futures contracts and options thereon for hedging pur-
            poses and also for investment purposes. For instance, the Fund may
            invest in stock index futures contracts and related options as an
            alternative to purchasing individual stocks to adjust its exposure
            to a particular foreign market. See "Characteristics and Risks of
            Securities and Investment Techniques--Derivative Instruments--In-
            dex Futures."
               The Fund will not normally invest in securities of U.S. issuers
            traded on U.S. securities markets. However, when the Portfolio
            Manager believes that conditions in international securities mar-
            kets warrant a defensive investment strategy, the Fund may invest
            up to 100% of its assets in domestic debt, foreign debt and equity
            securities principally traded in the U.S., including money market
            instruments, obligations issued or guaranteed by the U.S. or a
            foreign government or their respective agencies, authorities or
            instrumentalities, or corporate bonds and sponsored American De-
            pository Receipts.
               
               Investing in the securities of foreign issuers, and particu-
            larly emerging market issuers, involves special risks and consid-
            erations not typically associated with investing in U.S. compa-
            nies. For a discussion of such risks, see "Characteristics and
            Risks of Securities and Investment Techniques--Foreign Securi-
            ties." Currently, the Portfolio Manager for the International Fund
            is Blairlogie. [On or about March 31, 1999, it is anticipated that
            PIMCO Advisors will sell substantially all of its ownership inter-
            est in Blairlogie (the "Blairlogie Transaction"). The consummation
            of the Blairlogie Transaction is subject to a number of condi-
            tions. Subject to the approval of the shareholders of the Interna-
            tional Fund, PIMCO Advisors has determined to continue to retain
            Blairlogie as Portfolio Manager of the Fund following the
            Blairlogie Transaction. See "Management of the Trust--Portfolio
            Managers--Blairlogie."]     
               
            Innovation Fund seeks capital appreciation. No consideration is
            given to income. The Fund invests primarily (i.e., at least 65% of
            its assets) in common stocks of companies which utilize innovative
            technologies to gain a strategic competitive advantage in their
            industry as well as companies that provide and service those tech-
            nologies. Although the Fund emphasizes the utilization of technol-
            ogies, it is not restricted to investment in companies in a par-
            ticular business sector or industry.     
               
               The Fund may invest a portion of its assets in securities of
            foreign issuers traded in foreign securities markets (not includ-
            ing Eurodollar certificates of deposit), which will not exceed 15%
            of the Fund's assets at the time of investment. Investing in the
            securities of foreign issuers involves special risks and consider-
            ations not typically associated with investing in U.S. companies.
            For a discussion of such risks, see "Characteristics and Risks of
            Securities and Investment Techniques--Foreign Securities." The
            Fund may also purchase and write call and put options on securi-
            ties and securities indexes; enter into futures contracts and use
            options on futures contracts; buy or sell foreign currencies; and
            enter into forward foreign currency contracts. The Portfolio Man-
            ager for the Innovation Fund is the PIMCO Equity Advisors Division
            of PIMCO Advisors.     
 
            Precious Metals Fund seeks capital appreciation. No consideration
            is given to income. The Fund concentrates investments in a global
            portfolio of common stocks of companies principally engaged in
            precious metals-related activities, which include companies prin-
            cipally engaged in the extraction, processing, distribution or
            marketing of precious
 
24  PIMCO Funds: Multi-Manager Series
<PAGE>
 
            metals (the "precious metals industry"). A particular company is
            deemed to be "principally engaged" in the precious metals industry
            if at the time of investment the Portfolio Manager considers that
            at least 50% of the company's assets, revenues or profits are de-
            rived from the precious metals industry. Normally, at least 65% of
            the assets of the Fund will be invested in the precious metals in-
            dustry and in securities the value of which is linked to the price
            of a precious metal. See "Characteristics and Risks of Securities
            and Investment Techniques--Precious Metals."
               The Fund will seek to identify securities of companies which,
            based upon the Portfolio Manager's evaluation of their fundamental
            investment characteristics, are undervalued in comparison to the
            present or anticipated value of the precious metals relevant to
            them. Examples of precious metals include gold, silver and plati-
            num. To the extent permitted by federal tax law, the Fund may in-
            vest directly in gold bullion and other precious metals. Although
            the Fund reserves the right to do so at any time, as of the date
            of this Prospectus, it does not have the present intention to in-
            vest directly in any precious metals other than gold.
               Although the Fund reserves the right to do so at any time, as
            of the date of this Prospectus, it does not have the present in-
            tention to invest more than 10% of its assets in either precious
            metals, such as gold bullion, or in futures on precious metals,
            such as gold futures, and options thereon, or to invest more than
            5% of its assets in securities the value of which is linked to the
            price of a single precious metal. The Fund may invest up to 100%
            of its assets in securities of companies whose assets, revenues or
            profits are derived from a single precious metal.
               The Fund may invest up to 100% of its assets in securities
            principally traded on foreign securities markets and in securities
            of foreign issuers that are traded on U.S. securities markets or
            on foreign securities markets. Investing in the securities of for-
            eign issuers involves special risks and considerations not typi-
            cally associated with investing in U.S. companies. For a discus-
            sion of such risks, see "Characteristics and Risks of Securities
            and Investment Techniques--Foreign Securities." The Fund may also
            purchase and write call and put options on securities, securities
            indexes, commodity indexes, and on foreign currencies; enter into
            futures contracts and use options on futures contracts, including
            futures contracts on stock indexes, foreign currencies, and pre-
            cious metals; buy or sell foreign currencies; and enter into for-
            ward foreign currency contracts.
               The Fund, because of its emphasis on one industrial sector,
            should be considered as one aspect of a diversified portfolio and
            may not be suitable by itself as a balanced investment program.
            The Portfolio Manager for the Precious Metals Fund is Van Eck.
 
Stock Funds The Equity Income, Value, Tax-Efficient Equity, Capital Apprecia-
            tion, Value 25, Mid-Cap Growth and Small-Cap Value Funds will each
            invest primarily (normally at least 65% of its assets) in common
            stock. Each of these Funds may maintain a portion of its assets,
            which will usually not exceed 10%, in U.S. Government securities,
            high quality debt securities (whose maturity or remaining maturity
            will not exceed five years), money market obligations, and in cash
            to provide for payment of the Fund's expenses and to meet redemp-
            tion requests. It is the policy of these Funds to be as fully in-
            vested in common stocks as practicable at all times. This policy
            precludes these Funds from investing in debt securities as a de-
            fensive investment posture (although these Funds may invest in
            such securities to provide for payment of expenses and to meet re-
            demption requests). Accordingly, investors in these Funds bear the
            risk of general declines in stock prices and the risk that a
            Fund's exposure to such declines cannot be lessened by investment
            in debt securities. These Funds may also invest in convertible se-
            curities, preferred stocks, and warrants, subject to certain
            limitations.
               The Renaissance, Growth, Target, Opportunity, International,
            Innovation and Precious Metals Funds will each invest primarily
            (normally at least 65% of its assets) in common stocks, and may
            also invest in other equity securities, including preferred stocks
            and securities (including debt securities and warrants) convert-
            ible into or exercisable for common stocks. Each of these Funds
            may invest a portion of its assets in debt securities and, for
            temporary defensive purposes, up to 100% of its assets in short-
            term U.S. Government securities and other money market instru-
            ments.
               One or more of the Stock Funds may temporarily not be invested
            primarily in equity securities immediately following the commence-
            ment of operations or after receipt of significant new monies.
            While attempting to identify
 
                                                 
                                              April   , 1999 Prospectus   25    

<PAGE>
 
            suitable investments, the Funds may hold assets in cash, short-
            term U.S. Government securities and other money market instru-
            ments. Any of the Stock Funds may temporarily not contain the num-
            ber of securities in which the Fund normally invests if the Fund
            does not have sufficient assets to be fully invested, or pending
            the Portfolio Manager's ability to prudently invest new monies.
               The Stock Funds may also lend portfolio securities; enter into
            repurchase agreements and reverse repurchase agreements (subject
            to the Funds' investment limitations described below); purchase
            and sell securities on a when-issued or delayed delivery basis;
            and enter into forward commitments to purchase securities. Each of
            the Stock Funds may invest in American Depository Receipts
            ("ADRs"). In addition, the Renaissance, Growth, Target, Opportuni-
            ty, International, Innovation and Precious Metals Funds may invest
            in European Depository Receipts ("EDRs") and Global Depository Re-
            ceipts ("GDRs"). The Stock Funds that invest primarily in securi-
            ties of foreign issuers may invest a portion of their assets in
            debt securities and money market obligations issued by U.S. and
            foreign issuers that are either U.S. dollar-denominated or denomi-
            nated in foreign currency. For more information on these and other
            investment practices, see "Characteristics and Risks of Securities
            and Investment Techniques" in this Prospectus and "Investment Ob-
            jectives and Policies" in the Statement of Additional Information.
 
            Characteristics and Risks of
            Securities and Investment Techniques
 
            The different types of securities and investment techniques used
            by the individual Funds all have attendant risks of varying de-
            grees. For example, with respect to common stock, there can be no
            assurance of capital appreciation, and there is a risk of market
            decline. With respect to debt securities, including money market
            instruments, there is the risk that the issuer of a security may
            not be able to meet its obligation to make scheduled interest or
            principal payments. Because each Fund seeks a different investment
            objective and has different investment policies, each is subject
            to varying degrees of financial, market and credit risks. There-
            fore, investors should carefully consider the investment objec-
            tive, investment policies and potential risks of any Fund or Funds
            before investing.
               The following describes potential risks associated with differ-
            ent types of investment techniques that may be used by the indi-
            vidual Funds. For more detailed information on these investment
            techniques, as well as information on the types of securities in
            which some or all of the Funds may invest, see the Statement of
            Additional Information.
 
            Certain of the Funds may invest in common stock of companies with
            market capitalizations that are small compared to other publicly
            traded companies. Generally, small market capitalization is con-
            sidered to be less than $1.5 billion and large market capitaliza-
            tion is considered to be more than $5 billion. Under normal market
            conditions, the Small- Cap Value Fund will invest primarily in
            companies with market capitalizations of between $50 million and
            $1 billion, and the Opportunity Fund will invest primarily in com-
            panies with market capitalizations of less than $2 billion. In-
            vestments in larger companies present certain advantages in that
            such companies generally have greater financial resources, more
            extensive research and development, manufacturing, marketing and
            service capabilities, and more stability and greater depth of man-
            agement and technical personnel. Investments in smaller, less sea-
            soned companies may present greater opportunities for growth but
            also may involve greater risks than customarily are associated
            with more established companies. The securities of smaller compa-
            nies may be subject to more abrupt or erratic market movements
            than larger, more established companies. These companies may have
            limited product lines, markets or financial resources, or they may
            be dependent upon a limited management group. Their securities may
            be traded in the over-the-counter market or on a regional ex-
            change, or may otherwise have limited liquidity. As a result of
            owning large positions in this type of security, a Fund is subject
            to the additional risk of possibly having to sell portfolio secu-
            rities at disadvantageous times and prices if redemptions require
            the Fund to liquidate its securities positions. In addition, it
            may be prudent for a Fund with a relatively large asset size to
            limit the number of relatively small positions
InvestmentsIn
Companies
With Small
and Medium
Market
Capitalizations
 
26  PIMCO Funds: Multi-Manager Series

<PAGE>
 
            it holds in securities having limited liquidity in order to mini-
            mize its exposure to such risks, to minimize transaction costs,
            and to maximize the benefits of research. As a consequence, as a
            Fund's asset size increases, the Fund may reduce its exposure to
            illiquid small capitalization securities, which could adversely
            affect performance.
               Many of the Funds may also invest in stocks of companies with
            medium market capitalizations. Whether a U.S. issuer's market cap-
            italization is medium is determined by reference to the capital-
            ization for all issuers whose equity securities are listed on a
            United States national securities exchange or which are reported
            on NASDAQ. Issuers with market capitalizations within the range of
            capitalization of companies included in the S&P Mid Cap 400 Index
            may be regarded as being issuers with medium market capitaliza-
            tions. Such investments share some of the risk characteristics of
            investments in stocks of companies with small market capitaliza-
            tions described above, although such companies tend to have longer
            operating histories, broader product lines and greater financial
            resources and their stocks tend to be more liquid and less vola-
            tile than those of smaller capitalization issuers.
 
ForeignSecurities
            The International Fund may invest directly in foreign equity secu-
            rities; U.S. dollar- or foreign currency-denominated foreign cor-
            porate debt securities; foreign preferred securities; certificates
            of deposit, fixed time deposits and bankers' acceptances issued by
            foreign banks; and obligations of foreign governments or their
            subdivisions, agencies and instrumentalities, international agen-
            cies and supranational entities. The Precious Metals Fund may in-
            vest primarily in securities of foreign issuers, securities denom-
            inated in foreign currencies, securities principally traded on se-
            curities markets outside of the United States and in securities of
            foreign issuers that are traded on U.S. securities markets. The
            Balanced Fund may invest up to 20% of its Fixed Income Securities
            Segment in securities denominated in foreign currencies, and may
            invest beyond this limit in U.S. dollar-denominated securities of
            foreign issuers. The Renaissance, Growth, Target, Opportunity and
            Innovation Funds may invest up to 15% of their respective assets
            in securities which are traded principally in securities markets
            outside the United States (Eurodollar certificates of deposit are
            excluded for purposes of these limitations), and may invest with-
            out limit in securities of foreign issuers that are traded in U.S.
            markets.
               All of the Funds may invest in ADRs. In addition, the Renais-
            sance, Growth, Target, Opportunity, International, Innovation and
            Precious Metals Funds may invest in EDRs and GDRs. ADRs are dol-
            lar-denominated receipts issued generally by domestic banks and
            representing the deposit with the bank of a security of a foreign
            issuer, and are publicly traded on exchanges or over-the-counter
            in the United States. EDRs are receipts similar to ADRs and are
            issued and traded in Europe. GDRs may be offered privately in the
            United States and also trade in public or private markets in other
            countries.
               Investing in the securities of issuers in any foreign country
            involves special risks and considerations not typically associated
            with investing in U.S. companies. Shareholders should consider
            carefully the substantial risks involved in investing in securi-
            ties issued by companies and governments of foreign nations. These
            risks include: differences in accounting, auditing and financial
            reporting standards; generally higher commission rates on foreign
            portfolio transactions; the possibility of nationalization, expro-
            priation or confiscatory taxation; adverse changes in investment
            or exchange control regulations (which may include suspension of
            the ability to transfer currency from a country); and political
            instability which could affect U.S. investments in foreign coun-
            tries. Individual foreign economies may differ favorably or unfa-
            vorably from the U.S. economy in such respects as growth of gross
            domestic product, rate of inflation, capital reinvestment, re-
            sources, self-sufficiency, and balance of payments position. The
            securities markets, values of securities, yields, and risks asso-
            ciated with securities markets may change independently of each
            other. Additionally, foreign securities and dividends and interest
            payable on those securities may be subject to foreign taxes, in-
            cluding taxes withheld from payments on those securities. Foreign
            securities often trade with less frequency and volume than domes-
            tic securities and therefore may exhibit greater price volatility.
            Additional costs associated with an investment in foreign securi-
            ties may include higher custodial fees than apply to domestic cus-
            todial arrangements and transaction costs of foreign currency con-
            versions. Changes in foreign exchange rates also will affect the
            value of securities denominated or quoted in currencies other than
            the U.S. dollar.
 
                                                 
                                              April   , 1999 Prospectus   27    

<PAGE>
 
               A Fund's investments in foreign currency denominated debt obli-
            gations and hedging activities will likely produce a difference
            between its book income and its taxable income. This difference
            may cause a portion of the Fund's income distributions to consti-
            tute returns of capital for tax purposes or require the Fund to
            make distributions exceeding book income to qualify as a regulated
            investment company for federal tax purposes.
               Certain of the Funds may invest in the securities of issuers
            based in countries with developing economies. Investing in devel-
            oping (or "emerging market") countries involves certain risks not
            typically associated with investing in U.S. securities, and im-
            poses risks greater than, or in addition to, risks of investing in
            foreign, developed countries. A number of emerging market coun-
            tries restrict, to varying degrees, foreign investment in securi-
            ties. Repatriation of investment income, capital, and the proceeds
            of sales by foreign investors may require governmental registra-
            tion and/or approval in some emerging market countries. A number
            of the currencies of emerging market countries have experienced
            significant declines against the U.S. dollar in recent years, and
            devaluation may occur subsequent to investments in these curren-
            cies by a Fund. Inflation and rapid fluctuations in inflation
            rates have had, and may continue to have, negative effects on the
            economies and securities markets of certain emerging market coun-
            tries. Many of the emerging securities markets are relatively
            small, have low trading volumes, suffer periods of relative illi-
            quidity, and are characterized by significant price volatility.
            There is a risk in emerging market countries that a future eco-
            nomic or political crisis could lead to price controls, forced
            mergers of companies, expropriation or confiscatory taxation, sei-
            zure, nationalization, or creation of government monopolies, any
            of which may have a detrimental effect on a Fund's investment.
               Additional risks of investing in emerging market countries may
            include: currency exchange rate fluctuations; greater social, eco-
            nomic and political uncertainty and instability (including the
            risk of war); more substantial governmental involvement in the
            economy; less governmental supervision and regulation of the secu-
            rities markets and participants in those markets; unavailability
            of currency hedging techniques in certain emerging market coun-
            tries; the fact that companies in emerging market countries may be
            newly organized and may be smaller and less seasoned companies;
            the difference in, or lack of, auditing and financial reporting
            standards, which may result in unavailability of material informa-
            tion about issuers; the risk that it may be more difficult to ob-
            tain and/or enforce a judgment in a court outside the United
            States; and significantly smaller market capitalization of securi-
            ties markets. Also, any change in the leadership or policies of
            emerging market countries, or the countries that exercise a sig-
            nificant influence over those countries, may halt the expansion of
            or reverse the liberalization of foreign investment policies now
            occurring and adversely affect existing investment opportunities.
               In addition, emerging securities markets may have different
            clearance and settlement procedures, which may be unable to keep
            pace with the volume of securities transactions or otherwise make
            it difficult to engage in such transactions. Settlement problems
            may cause a Fund to miss attractive investment opportunities, hold
            a portion of its assets in cash pending investment, or delay in
            disposing of a portfolio security. Such a delay could result in
            possible liability to a purchaser of the security.
 
            Special Risks of Investing in Russian and Other Eastern European
            Securities  The International Fund may invest a portion of its as-
            sets in securities of issuers located in Russia and in other East-
            ern European countries. While investments in securities of such
            issuers are subject generally to the same risks associated with
            investments in other emerging market countries described above,
            the political, legal and operational risks of investing in Russian
            and other Eastern European issuers, and of having assets custodied
            within these countries, may be particularly acute. A risk of par-
            ticular note with respect to direct investment in Russian securi-
            ties is the way in which ownership of shares of companies is nor-
            mally recorded. When a Fund invests in a Russian issuer, it will
            normally receive a "share extract," but that extract is not le-
            gally determinative of ownership. The official record of ownership
            of a company's share is maintained by the company's share regis-
            trar. Such share registrars are completely under the control of
            the issuer, and investors are provided with few legal rights
            against such registrars. Please refer to "Investment Objectives
            and Policies-Foreign
 
28  PIMCO Funds: Multi-Manager Series

<PAGE>
 
            Securities" in the Statement of Additional Information for a more
            complete description of these and other risks associated with in-
            vestments in securities of Russian and other Eastern European is-
            suers.
 
Foreign     Foreign currency exchange rates may fluctuate significantly over
Currency    short periods of time. They generally are determined by the forces
Transactionsof supply and demand in the foreign exchange markets and the rela-
            tive merits of investments in different countries, actual or per-
            ceived changes in interest rates and other complex factors, as
            seen from an international perspective. Currency exchange rates
            also can be affected unpredictably by intervention (or the failure
            to intervene) by U.S. or foreign governments or central banks, or
            by currency controls or political developments in the U.S. or
            abroad. For example, significant uncertainty surrounds the pro-
            posed introduction of the euro (a common currency unit for the Eu-
            ropean Union) in January 1999 and its effect on the value of secu-
            rities denominated in local European currencies. These and other
            currencies in which the Funds' assets are denominated may be de-
            valued against the U.S. dollar, resulting in a loss to the Funds.
            For a more complete discussion of foreign currency risks (includ-
            ing those associated with the euro), please see "Investment Objec-
            tives and Policies--Foreign Currencies" in the Statement of Addi-
            tional Information.
               
               The Balanced, Renaissance, Growth, Target, Opportunity, Inter-
            national, Innovation and Precious Metals Funds may enter into for-
            ward foreign currency exchange contracts to reduce the risks of
            adverse changes in foreign exchange rates. In addition, the Bal-
            anced, International and Precious Metals Funds may buy and sell
            foreign currency futures contracts and options on foreign curren-
            cies and foreign currency futures. A forward foreign currency ex-
            change contract involves an obligation to purchase or sell a spe-
            cific currency at a future date, which may be any fixed number of
            days from the date of the contract agreed upon by the parties, at
            a price set at the time of the contract. By entering into a for-
            ward foreign currency exchange contract, the Fund "locks in" the
            exchange rate between the currency it will deliver and the cur-
            rency it will receive for the duration of the contract. As a re-
            sult, a Fund reduces its exposure to changes in the value of the
            currency it will deliver and increases its exposure to changes in
            the value of the currency it will exchange into. The effect on the
            value of a Fund is similar to selling securities denominated in
            one currency and purchasing securities denominated in another cur-
            rency. Contracts to sell foreign currency would limit any poten-
            tial gain which might be realized by a Fund if the value of the
            hedged currency increases. A Fund may enter into these contracts
            for the purpose of hedging against foreign exchange risk arising
            from the Fund's investment or anticipated investment in securities
            denominated in foreign currencies. Suitable hedging transactions
            may not be available in all circumstances and there can be no as-
            surance that a Fund will engage in such transactions at any given
            time or from time to time. Also, such transactions may not be suc-
            cessful and may eliminate any chance for a Fund to benefit from
            favorable fluctuations in relevant foreign currencies. The Inter-
            national Fund may also enter into hedging contracts for purposes
            of increasing exposure to a foreign currency or to shift exposure
            to foreign currency fluctuations from one currency to another. To
            the extent that it does so, the International Fund will be subject
            to the additional risk that the relative value of currencies will
            be different than anticipated by the Fund's Portfolio Manager. The
            International may use one currency (or a basket of currencies) to
            hedge against adverse changes in the value of another currency (or
            a basket of currencies) when exchange rates between the two cur-
            rencies are positively correlated. The Fund will segregate assets
            determined to be liquid by the Adviser or a Portfolio Manager in
            accordance with procedures established by the Board of Trustees to
            cover its obligations under forward foreign currency exchange con-
            tracts entered into for non-hedging purposes.     
 
Money       Each of the Funds may invest at least a portion of its assets in
Market      the following kinds of money market instruments:
Instruments    (1)short-term U.S. Government securities;
               (2) certificates of deposit, bankers' acceptances and other
                   bank obligations rated in the two highest rating categories
                   by at least two NRSROs, or, if rated by only one NRSRO, in
                   such agency's two highest grades, or, if unrated,
                   determined to be of comparable quality by the Adviser or a
                   Portfolio Manager. Bank obligations must be those of a bank
                   that has deposits in excess of $2 billion or that is a
                   member of the Federal Deposit Insurance Corporation. A Fund
                   may invest in obligations of U.S. branches or subsidiaries
                   of foreign banks ("Yankee dollar obligations") or foreign
                   branches of U.S. banks ("Eurodollar obligations");
 
                                                 
                                              April   , 1999 Prospectus   29    
<PAGE>
 
               (3) commercial paper rated in the two highest rating categories
                   by at least two NRSROs, or, if rated by only one NRSRO, in
                   such agency's two highest grades, or, if unrated, deter-
                   mined to be of comparable quality by the Adviser or a Port-
                   folio Manager;
               (4) corporate obligations with a remaining maturity of 397 days
                   or less whose issuers have outstanding short-term debt ob-
                   ligations rated in the highest rating category by at least
                   two NRSROs, or, if rated by only one NRSRO, in such
                   agency's highest grade, or, if unrated, determined to be of
                   comparable quality by the Adviser or a Portfolio Manager;
                   and
               (5)repurchase agreements with domestic commercial banks or reg-
               istered broker-dealers.
 
Mortgage-   All Funds that may purchase debt securities for investment pur-
RelatedAnd  poses (and in particular, the Balanced Fund) may invest in mort-
OtherAsset- gage-related securities, and in other asset-backed securities (un-
Backed      related to mortgage loans) that are offered to investors currently
Securities  or in the future. The value of some mortgage-related or asset-
            backed securities in which the Funds invest may be particularly
            sensitive to changes in prevailing interest rates, and, like other
            fixed income investments, the ability of a Fund to successfully
            utilize these instruments may depend in part upon the ability of
            the Portfolio Manager to forecast interest rates and other eco-
            nomic factors correctly.
 
            Mortgage Pass-Through Securities are securities representing in-
            terests in "pools" of mortgage loans secured by residential or
            commercial real property in which payments of both interest and
            principal on the securities are generally made monthly, in effect
            "passing through" monthly payments made by the individual borrow-
            ers on the mortgage loans which underlie the securities (net of
            fees paid to the issuer or guarantor of the securities). Early re-
            payment of principal on some mortgage-related securities (arising
            from prepayments of principal due to sale of the underlying prop-
            erty, refinancing, or foreclosure, net of fees and costs which may
            be incurred) may expose a Fund to a lower rate of return upon re-
            investment of principal. Also, if a security subject to prepayment
            has been purchased at a premium, the value of the premium would be
            lost in the event of prepayment. Like other fixed income securi-
            ties, when interest rates rise, the value of a mortgage-related
            security generally will decline; however, when interest rates are
            declining, the value of mortgage-related securities with prepay-
            ment features may not increase as much as other fixed income secu-
            rities. The rate of prepayments on underlying mortgages will af-
            fect the price and volatility of a mortgage-related security, and
            may have the effect of shortening or extending the effective matu-
            rity of the security beyond what was anticipated at the time of
            purchase. To the extent that unanticipated rates of prepayment on
            underlying mortgages increase the effective maturity of a mort-
            gage-related security, the volatility of such security can be ex-
            pected to increase.
               Payment of principal and interest on some mortgage pass-through
            securities (but not the market value of the securities themselves)
            may be guaranteed by the full faith and credit of the U.S. Govern-
            ment (in the case of securities guaranteed by the Government Na-
            tional Mortgage Association ("GNMA")); or guaranteed by agencies
            or instrumentalities of the U.S. Government (in the case of secu-
            rities guaranteed by the Federal National Mortgage Association
            ("FNMA") or the Federal Home Loan Mortgage Corporation ("FHLMC"),
            which are supported only by the discretionary authority of the
            U.S. Government to purchase the agency's obligations). Mortgage-
            related securities created by non-governmental issuers (such as
            commercial banks, savings and loan institutions, private mortgage
            insurance companies, mortgage bankers and other secondary market
            issuers) may be supported by various forms of insurance or guaran-
            tees, including individual loan, title, pool and hazard insurance
            and letters of credit, which may be issued by governmental enti-
            ties, private insurers or the mortgage poolers.
 
            Collateralized Mortgage Obligations ("CMOs") are hybrid mortgage-
            related instruments. Similar to a bond, interest and pre-paid
            principal on a CMO are paid, in most cases, on a monthly basis.
            CMOs may be collateralized by whole mortgage loans but are more
            typically collateralized by portfolios of mortgage pass-through
            securities guaranteed by GNMA, FHLMC, or FNMA. CMOs are structured
            into multiple classes, with each class bearing a different stated
            maturity. Monthly payments of principal, including prepayments,
            are first returned to investors holding the shortest maturity
 
30  PIMCO Funds: Multi-Manager Series

<PAGE>
 
            class; investors holding the longer maturity classes receive prin-
            cipal only after the first class has been retired. CMOs that are
            issued or guaranteed by the U.S. Government or by any of its agen-
            cies or instrumentalities will be considered U.S. Government secu-
            rities by a Fund, while other CMOs, even if collateralized by U.S.
            Government securities, will have the same status as other pri-
            vately issued securities for purposes of applying a Fund's diver-
            sification tests.
 
            Commercial Mortgage-Backed Securities include securities that re-
            flect an interest in, and are secured by, mortgage loans on com-
            mercial real property. The market for commercial mortgage-backed
            securities developed more recently and in terms of total outstand-
            ing principal amount of issues is relatively small compared to the
            market for residential single-family mortgage-backed securities.
            Many of the risks of investing in commercial mortgage-backed secu-
            rities reflect the risks of investing in the real estate securing
            the underlying mortgage loans. These risks reflect the effects of
            local and other economic conditions on real estate markets, the
            ability of tenants to make loan payments, and the ability of a
            property to attract and retain tenants. Commercial mortgage-backed
            securities may be less liquid and exhibit greater price volatility
            than other types of mortgage-related or asset-backed securities.
 
            Mortgage-Related Securities include securities other than those
            described above that directly or indirectly represent a participa-
            tion in, or are secured by and payable from, mortgage loans on
            real property, such as CMO residuals or stripped mortgage-backed
            securities ("SMBS"), and may be structured in classes with rights
            to receive varying proportions of principal and interest.
               A common type of SMBS will have one class receiving some of the
            interest and most of the principal from the mortgage assets, while
            the other class will receive most of the interest and the remain-
            der of the principal. In the most extreme case, one class will re-
            ceive all of the interest (the interest-only, or "IO" class),
            while the other class will receive all of the principal (the prin-
            cipal-only, or "PO" class). The yield to maturity on an IO class
            is extremely sensitive to the rate of principal payments (includ-
            ing prepayments) on the related underlying mortgage assets, and a
            rapid rate of principal payments may have a material adverse ef-
            fect on a Fund's yield to maturity from these securities. For a
            discussion of the characteristics of some of these instruments,
            see the Statement of Additional Information.
 
Convertible Many of the Funds may invest in convertible securities. Convert-
Securities  ible securities are generally preferred stocks or fixed income se-
            curities that are convertible into common stock at either a stated
            price or a stated rate. The price of the convertible security will
            normally vary in some proportion to changes in the price of the
            underlying common stock because of this conversion feature. A con-
            vertible security will normally also provide a fixed income
            stream. For this reason, the convertible security may not decline
            in price as rapidly as the underlying common stock.
               A Fund's Portfolio Manager will select convertible securities
            to be purchased by the Fund based primarily upon its evaluation of
            the fundamental investment characteristics and growth prospects of
            the issuer of the security. As a fixed income security, a convert-
            ible security tends to increase in market value when interest
            rates decline and to decrease in value when interest rates rise.
            While convertible securities generally offer lower interest or
            dividend yields than non-convertible fixed income securities of
            similar quality, their value tends to increase as the market value
            of the underlying stock increases and to decrease when the value
            of the underlying stock decreases.
               The Renaissance Fund may invest in so-called "synthetic con-
            vertible securities," which are composed of two or more different
            securities whose investment characteristics, taken together, re-
            semble those of convertible securities. For example, the Renais-
            sance Fund may purchase a non-convertible debt security and a war-
            rant or option. The synthetic convertible differs from the true
            convertible security in several respects. Unlike a true convert-
            ible security, which is a single security having a unitary market
            value, a synthetic convertible comprises two or more separate se-
            curities, each with its own market value. Therefore, the "market
            value" of a synthetic convertible is the sum of the values of its
            fixed income component and its convertible component. For this
            reason, the values of a synthetic convertible and a true convert-
            ible security may respond differently to market fluctuations.
 
                                                 
                                              April   , 1999 Prospectus   31    
<PAGE>
 
 
Risks of    The Balanced, Renaissance and Growth Funds may invest a portion of
High Yield  their assets in fixed income securities rated lower than Baa by
Securities  Moody's or lower than BBB by S&P but rated at least B by Moody's
("Junk      or S&P or, if not rated, determined by the Portfolio Manager to be
Bonds")     of comparable quality. In addition, the Renaissance Fund may in-
            vest in convertible securities rated below B by Moody's or S&P
            (or, if unrated, considered by the Portfolio Manager to be of com-
            parable quality). Securities rated lower than Baa by Moody's or
            lower than BBB by S&P are sometimes referred to as "high yield" or
            "junk" bonds. Investors should consider the risks associated with
            high yield securities before investing in these Funds. Although
            each of the Renaissance and Growth Funds reserves the right to do
            so at any time, as of the date of this Prospectus, neither Fund
            invests nor has the present intention to invest more than 5% of
            its assets in high yield securities or junk bonds.
               Investing in high yield securities involves special risks in
            addition to the risks associated with investments in higher rated
            fixed income securities. While offering a greater potential oppor-
            tunity for capital appreciation and higher yields than investments
            in higher rated debt securities, high yield securities typically
            entail greater potential price volatility and may be less liquid
            than investment grade debt. High yield securities may be regarded
            as predominately speculative with respect to the issuer's continu-
            ing ability to meet principal and interest payments. Analysis of
            the creditworthiness of issuers of high yield securities may be
            more complex than for issuers of higher quality debt securities,
            and achievement of a Fund's investment objective may, to the ex-
            tent of its investments in high yield securities, depend more
            heavily on the Portfolio Manager's creditworthiness analysis than
            would be the case if the Fund were investing in higher quality se-
            curities. High yield securities may be more susceptible to real or
            perceived adverse economic and competitive industry conditions
            than higher grade securities.
               For additional discussion of the characteristics of lower rated
            fixed income securities, see the Statement of Additional Informa-
            tion. Ratings assigned to fixed income securities are described in
            the Appendix to the Statement of Additional Information.
 
Derivative  To the extent permitted by the investment objective and policies
Instruments of each Fund, a Fund may purchase and write call and put options
            on securities, securities indexes and foreign currencies, and en-
            ter into futures contracts and use options on futures contracts as
            further described below. In pursuit of their investment objec-
            tives, the Balanced, Renaissance, Tax-Efficient Equity, Growth,
            Target, Opportunity, International, Innovation and Precious Metals
            Funds may engage in the purchase and writing of call and put op-
            tions on securities and securities indexes and enter into futures
            contracts and options thereon, including securities index futures
            contracts and options thereon. The Precious Metals Fund may pur-
            chase and write options on commodities indexes. The Funds that may
            invest in foreign-currency denominated securities may engage in
            the purchase and writing of call and put options on foreign cur-
            rencies. The Balanced and Tax-Efficient Equity Funds may also en-
            ter into swap agreements with respect to securities indexes. The
            Balanced Fund may also enter into swap agreements with respect to
            foreign currencies and interest rates. The Funds may (but are not
            required to) use these techniques to hedge against changes in in-
            terest rates, foreign currency exchange rates or securities pric-
            es; and for the International Fund, to increase exposure to a for-
            eign currency, to shift exposure to foreign currency fluctuations
            from one country to another, or as part of its overall investment
            strategy. Each Fund will segregate assets determined to be liquid
            by the Adviser or a Portfolio Manager in accordance with proce-
            dures established by the Board of Trustees (or, as permitted by
            applicable regulation, enter into certain offsetting positions) to
            cover its obligations under options, futures, and swaps to limit
            leveraging of the Fund.
               Derivative instruments are considered for these purposes to
            consist of securities or other instruments whose value is derived
            from or related to the value of some other instrument or asset,
            and not to include those securities whose payment of principal
            and/or interest depend upon cash flows from underlying assets,
            such as mortgage-related or asset-backed securities. See "Mort-
            gage-Related and Other Asset-Backed Securities." The value of some
            derivative instruments in which the Funds may invest may be par-
            ticularly sensitive to changes in prevailing interest rates, and,
            like the other investments of the Funds, the ability of a Fund to
            successfully utilize these instruments may depend in part upon the
            ability of the Portfolio Manager to forecast interest rates and
            other economic factors correctly. If the
 
32  PIMCO Funds: Multi-Manager Series

<PAGE>
 
            Portfolio Manager incorrectly forecasts such factors and has taken
            positions in derivative instruments contrary to prevailing market
            trends, the Funds could be exposed to the risk of loss.
               The Funds might not employ any of the strategies described be-
            low, and no assurance can be given that any strategy used will
            succeed. If the Portfolio Manager incorrectly forecasts interest
            rates, market values or other economic factors in utilizing a de-
            rivatives strategy for a Fund, the Fund might have been in a bet-
            ter position if it had not entered into the transaction at all.
            Also, suitable derivative transactions may not be available in all
            circumstances. The use of these strategies involves certain spe-
            cial risks, including a possible imperfect correlation, or even no
            correlation, between price movements of derivative instruments and
            price movements of related investments. While some strategies in-
            volving derivative instruments can reduce the risk of loss, they
            can also reduce the opportunity for gain or even result in losses
            by offsetting favorable price movements in related investments or
            otherwise, due to the possible inability of a Fund to purchase or
            sell a portfolio security at a time that would be favorable or the
            possible need to sell a portfolio security at a disadvantageous
            time because the Fund is required to maintain asset coverage or
            offsetting positions in connection with transactions in derivative
            instruments, and the possible inability of a Fund to close out or
            to liquidate its derivatives positions. In addition, a Fund's use
            of such instruments may cause the Fund to realize higher amounts
            of short-term capital gains (generally taxed at ordinary income
            tax rates) than if it had not used such instruments.
 
            Options on Securities, Securities Indexes, and Currencies Certain
            Funds may purchase put options on securities. One purpose of pur-
            chasing put options is to protect holdings in an underlying or re-
            lated security against a substantial decline in market value.
            These Funds may also purchase call options on securities. One pur-
            pose of purchasing call options is to protect against substantial
            increases in prices of securities the Fund intends to purchase
            pending its ability to invest in such securities in an orderly
            manner. A Fund may sell put or call options it has previously pur-
            chased, which could result in a net gain or loss depending on
            whether the amount realized on the sale is more or less than the
            premium and other transaction costs paid on the put or call option
            which is sold. A Fund may write a call or put option only if the
            option is "covered" by the Fund holding a position in the under-
            lying securities or by other means which would permit immediate
            satisfaction of the Fund's obligation as writer of the option.
            Prior to exercise or expiration, an option may be closed out by an
            offsetting purchase or sale of an option of the same series.
               The purchase and writing of options involves certain risks.
            During the option period, the covered call writer has, in return
            for the premium on the option, given up the opportunity to profit
            from a price increase in the underlying security above the exer-
            cise price, but, as long as its obligation as a writer continues,
            has retained the risk of loss should the price of the underlying
            security decline. The writer of an option has no control over the
            time when it may be required to fulfill its obligation as a writer
            of the option. Once an option writer has received an exercise no-
            tice, it cannot effect a closing purchase transaction in order to
            terminate its obligation under the option and must deliver the un-
            derlying security at the exercise price. If a put or call option
            purchased by the Fund is not sold when it has remaining value, and
            if the market price of the underlying security remains equal to or
            greater than the exercise price (in the case of a put), or remains
            less than or equal to the exercise price (in the case of a call),
            the Fund will lose its entire investment in the option. Also,
            where a put or call option on a particular security is purchased
            to hedge against price movements in a related security, the price
            of the put or call option may move more or less than the price of
            the related security. There can be no assurance that a liquid mar-
            ket will exist when a Fund seeks to close out an option position.
            Furthermore, if trading restrictions or suspensions are imposed on
            the options markets, a Fund may be unable to close out a position.
               For each of the Renaissance, Growth, Target, Opportunity, In-
            ternational, Innovation, and Precious Metals Funds, in the case of
            a written call option on a securities index, the Fund will own
            corresponding securities whose historic volatility correlates with
            that of the index.
               The Balanced, International and Precious Metals Funds may buy
            or sell put and call options on foreign currencies as a hedge
            against changes in the value of the U.S. dollar (or another cur-
            rency) in relation to a foreign currency
 
                                                 
                                              April   , 1999 Prospectus   33    
<PAGE>
 
            in which a Fund's securities may be denominated. Currency options
            traded on U.S. or other exchanges may be subject to position lim-
            its which may limit the ability of a Fund to reduce foreign cur-
            rency risk using such options.
               Over-the-counter options in which certain Funds may invest dif-
            fer from traded options in that they are two-party contracts, with
            price and other terms negotiated between buyer and seller, and
            generally do not have as much market liquidity as exchange-traded
            options. The Funds may be required to treat as illiquid over-the-
            counter options purchased and securities being used to cover cer-
            tain written over-the-counter options.
 
            Swap Agreements The Balanced Fund may enter into swap agreements
            to hedge against changes in interest rates, foreign currency ex-
            change rates or securities prices. The Tax-Efficient Equity Fund
            may enter into equity index swap agreements for purposes of gain-
            ing exposure to the stocks making up an index of securities with-
            out actually purchasing those stocks. Swap agreements are two-
            party contracts entered into primarily by institutional investors
            for periods ranging from a few weeks to more than one year. In a
            standard swap transaction, two parties agree to exchange the re-
            turns (or differentials in rates of return) earned or realized on
            particular predetermined investments or instruments, which may be
            adjusted for an interest factor. The gross returns to be exchanged
            or "swapped" between the parties are generally calculated with re-
            spect to a "notional amount," i.e., the return on or increase in
            value of a particular dollar amount invested at a particular in-
            terest rate, or in a "basket" of securities representing a partic-
            ular index.
               Most swap agreements entered into by the Funds calculate the
            obligations of the parties to the agreement on a "net basis." Con-
            sequently, a Fund's current obligations (or rights) under a swap
            agreement will generally be equal only to the net amount to be
            paid or received under the agreement based on the relative values
            of the positions held by each party to the agreement (the "net
            amount"). A Fund's current obligations under a swap agreement will
            be accrued daily (offset against amounts owed to the Fund), and
            any accrued but unpaid net amounts owed to a swap counterparty
            will be covered by the segregation of assets determined to be liq-
            uid by the Portfolio Manager in accordance with procedures estab-
            lished by the Board of Trustees to limit any potential leveraging
            of the Fund's portfolio. Obligations under swap agreements so cov-
            ered will not be construed to be "senior securities" for purposes
            of a Fund's investment restriction concerning senior securities. A
            Fund will not enter into a swap agreement with any single party if
            the net amount owed or to be received under existing contracts
            with that party would exceed 5% of the Fund's assets.
               Whether a Fund's use of swap agreements will be successful in
            furthering its investment objective will depend on the Portfolio
            Manager's ability to predict correctly whether certain types of
            investments are likely to produce greater returns than other in-
            vestments. Because they are two-party contracts and because they
            may have terms of greater than seven days, swap agreements may be
            considered to be illiquid investments. Moreover, a Fund bears the
            risk of loss of the amount expected to be received under a swap
            agreement in the event of the default or bankruptcy of a swap
            agreement counterparty. The Funds will enter into swap agreements
            only with counterparties that meet certain standards for credit-
            worthiness (generally, such counterparties would have to be eligi-
            ble counterparties under the terms of the Funds' repurchase agree-
            ment guidelines). The swaps market is a relatively new market and
            is largely unregulated. It is possible that developments in the
            swaps market, including potential government regulation, could ad-
            versely affect a Fund's ability to terminate existing swap agree-
            ments or to realize amounts to be received under such agreements.
 
            Futures Contracts and Options on Futures Contracts Certain Funds
            may enter into futures contracts and options thereon. The Balanced
            Fund may invest in interest rate futures contracts and options
            thereon. The Precious Metals Fund may purchase and sell futures
            contracts on precious metals (such as gold), and purchase and
            write options on precious metals futures contracts. The Balanced,
            International and Precious Metals Funds may invest in foreign ex-
            change futures contracts and options thereon ("futures options")
            that are traded on a U.S. or foreign exchange or board of trade,
            or similar entity, or quoted on an automated quotation system.
            These Funds may engage in such futures transactions as an adjunct
            to their securities activities.
               There are several risks associated with the use of futures and
            futures options for hedging purposes. There can be no guarantee
            that there will be a correlation between price movements in the
            hedging vehicle and in the portfolio
 
34  PIMCO Funds: Multi-Manager Series

<PAGE>
 
            securities being hedged. An incorrect correlation could result in
            a loss on both the hedged securities in a Fund and the hedging ve-
            hicle, so that the portfolio return might have been greater had
            hedging not been attempted. There can be no assurance that a liq-
            uid market will exist at a time when a Fund seeks to close out a
            futures contract or a futures option position. Most futures ex-
            changes and boards of trade limit the amount of fluctuation per-
            mitted in futures contract prices during a single day; once the
            daily limit has been reached on a particular contract, no trades
            may be made that day at a price beyond that limit. In addition,
            certain of these instruments are relatively new and without a sig-
            nificant trading history. As a result, there is no assurance that
            an active secondary market will develop or continue to exist. Lack
            of a liquid market for any reason may prevent a Fund from liqui-
            dating an unfavorable position, and the Fund would remain obli-
            gated to meet margin requirements until the position is closed.
 
            Index Futures The Balanced, Renaissance, Tax-Efficient Equity,
            Growth, Target, Opportunity, International, Innovation and Pre-
            cious Metals Funds may purchase and sell futures contracts on var-
            ious securities indexes ("Index Futures") and related options for
            hedging purposes and for investment purposes. A Fund's purchase
            and sale of Index Futures is limited to contracts and exchanges
            which have been approved by the Commodity Futures Trading Commis-
            sion ("CFTC").
               The International Fund may invest to a significant degree in
            Index Futures on stock indexes and related options (including
            those which may trade outside of the United States) as an alterna-
            tive to purchasing individual stocks in order to adjust the Fund's
            exposure to a particular market. The Fund may invest in Index
            Futures and related options when the Portfolio Manager believes
            that there are not enough attractive securities available to main-
            tain the standards of diversification and liquidity set for the
            Fund pending investment in such securities if or when they do be-
            come available. Through the use of Index Futures and related op-
            tions, the International Fund may diversify risk in its portfolio
            without incurring the substantial brokerage costs which may be as-
            sociated with investment in the securities of multiple issuers.
            The Fund may also avoid potential market and liquidity problems
            which may result from increases in positions already held by it.
               A Fund may close open positions on the futures exchanges on
            which Index Futures are traded at any time up to and including the
            expiration day. All positions which remain open at the close of
            the last business day of the contract's life are required to set-
            tle on the next business day (based upon the value of the relevant
            index on the expiration day), with settlement made with the appro-
            priate clearing house. Because the specific procedures for trading
            foreign stock Index Futures on futures exchanges are still under
            development, additional or different margin requirements as well
            as settlement procedures may be applicable to foreign stock Index
            Futures at the time a Fund purchases such instruments.
               Positions in Index Futures may be closed out by a Fund only on
            the futures exchange upon which the Index Futures are then traded.
            There can be no assurance that a liquid market will exist for any
            particular contract at any particular time. Also, the price of In-
            dex Futures may not correlate perfectly with movement in the rele-
            vant index due to certain market distortions. First, all partici-
            pants in the futures market are subject to margin deposit and
            maintenance requirements. Rather than meeting additional margin
            deposit requirements, investors may close futures contracts
            through offsetting transactions which could distort the normal re-
            lationship between the index and futures markets. Second, the de-
            posit requirements in the futures market are less onerous than
            margin requirements in the securities market, and as a result, the
            futures market may attract more speculators than does the securi-
            ties market. Increased participation by speculators in the futures
            market may also cause temporary price distortions. In addition,
            trading hours for foreign stock Index Futures may not correspond
            perfectly to hours of trading on the foreign exchange to which a
            particular foreign stock Index Future relates. This may result in
            a disparity between the price of Index Futures and the value of
            the relevant index due to the lack of continuous arbitrage between
            the Index Futures price and the value of the underlying index.
               The Funds may only enter into futures contracts or futures op-
            tions which are standardized and traded on a U.S. or foreign ex-
            change or board of trade, or similar entity, or quoted on an auto-
            mated quotation system. Each Fund may use futures contracts and
            related options for "bona fide hedging" purposes, as such term is
            defined in applicable
 
                                                 
                                              April   , 1999 Prospectus   35    

<PAGE>
 
            regulations of the CFTC, or, with respect to positions in futures
            and related options that do not qualify as "bona fide hedging" po-
            sitions, may enter such positions only to the extent that aggre-
            gate initial margin deposits plus premiums paid by it for open
            futures option positions, less the amount by which any such posi-
            tions are "in-the-money," would not exceed 5% of the Fund's net
            assets.
 
Precious    The Precious Metals Fund will concentrate its investments in the
Metals      precious metals industry. Prices of precious metals can be ex-
            pected to respond to changes in rates of inflation and to percep-
            tions of economic and political instability. The values of compa-
            nies engaged in precious metal-related activities whose securities
            are principally traded on foreign securities exchanges may also be
            affected by changes in the exchange rate between the relevant for-
            eign currency and the U.S. dollar. Based on historical experience,
            the prices of precious metals and of securities of companies en-
            gaged in precious metal-related activities may be subject to ex-
            treme fluctuations, reflecting wider economic or political insta-
            bility or for other reasons.
 
Loans of    For the purpose of achieving income, each Fund may lend its port-
Portfolio   folio securities to brokers, dealers, and other financial institu-
Securities  tions, provided:
               (i)  the loan is secured continuously by collateral consisting
                    of U.S. Government securities, cash or cash equivalents
                    (negotiable certificates of deposit, bankers' acceptances
                    or letters of credit) maintained on a daily mark-to-market
                    basis in an amount at least equal to the current market
                    value of the securities loaned;
               (ii) the Fund may at any time call the loan and obtain the re-
                    turn of the securities loaned;
               (iii) the Fund will receive any interest or dividends paid on
                     the loaned securities; and
               (iv) the aggregate market value of securities loaned will not
                    at any time exceed the Fund's limitation on lending its
                    portfolio securities.
              Each Fund's performance will continue to reflect changes in the
            value of the securities loaned and will also reflect the receipt
            of either interest, through investment of cash collateral by the
            Fund in permissible investments, or a fee, if the collateral is
            U.S. Government securities. Securities lending involves the risk
            of loss of rights in the collateral or delay in recovery of the
            collateral should the borrower fail to return the security loaned
            or become insolvent. The Funds may pay lending fees to the party
            arranging the loan.
 
Short Sales Each Fund may from time to time make short sales involving securi-
            ties held in the Fund's portfolio or which the Fund has the right
            to acquire without the payment of further consideration. For these
            purposes, a Fund may also hold or have the right to acquire secu-
            rities which, without the payment of any further consideration,
            are convertible into or exchangeable for the securities sold
            short. Short sales expose the Fund to the risk that it will be re-
            quired to acquire, convert or exchange securities to cover its
            short position at a time when the securities sold short have ap-
            preciated in value, thus resulting in a loss to the Fund.
 
When-       Each Fund may purchase securities which it is eligible to purchase
Issued,     on a when-issued basis, may purchase and sell such securities for
Delayed     delayed delivery and may make contracts to purchase such securi-
Delivery    ties for a fixed price at a future date beyond normal settlement
And         time (forward commitments). When-issued transactions, delayed de-
Forward     livery purchases and forward commitments involve a risk of loss if
Commitment  the value of the securities declines prior to the settlement date,
Transactionswhich risk is in addition to the risk of decline in the value of
            the Fund's other assets. Typically, no income accrues on securi-
            ties a Fund has committed to purchase prior to the time delivery
            of the securities is made, although a Fund may earn income on se-
            curities it has segregated.
 
Repurchase  For the purposes of maintaining liquidity and achieving income,
Agreements  each Fund may enter into repurchase agreements, which entail the
            purchase of a portfolio-eligible security from a bank or broker-
            dealer that agrees to repurchase the security at the Fund's cost
            plus interest within a specified time (normally one day). If the
            party agreeing to repurchase
 
36  PIMCO Funds: Multi-Manager Series

<PAGE>
 
            should default, as a result of bankruptcy or otherwise, the Fund
            will seek to sell the securities which it holds, which action
            could involve procedural costs or delays in addition to a loss on
            the securities if their value should fall below their repurchase
            price. Those Funds whose investment objectives do not include the
            earning of income will invest in repurchase agreements only as a
            cash management technique with respect to that portion of the
            portfolio maintained in cash. Each Fund will limit its investment
            in repurchase agreements maturing in more than seven days consis-
            tent with the Fund's policy on investment in illiquid securities.
 
Reverse     A reverse repurchase agreement may for some purposes be considered
Repurchase  borrowing that involves the sale of a security by a Fund and its
Agreements  agreement to repurchase the instrument at a specified time and
And Other   price. The Fund will segregate assets determined to be liquid by
Borrowings  the Adviser or Portfolio Manager in accordance with procedures es-
            tablished by the Board of Trustees to cover its obligations under
            reverse repurchase agreements. Reverse repurchase agreements will
            be subject to the Funds' limitations on borrowings. A Fund also
            may borrow money for investment purposes subject to any policies
            of the Fund currently described in this Prospectus or in the
            Statement of Additional Information. Such a practice will result
            in leveraging of a Fund's assets. Leverage will tend to exaggerate
            the effect on net asset value of any increase or decrease in the
            value of a Fund's portfolio and may cause a Fund to liquidate
            portfolio positions when it would not be advantageous to do so.
 
Portfolio   The length of time a Fund has held a particular security is not
Turnover    generally a consideration in investment decisions. The investment
            policies of a Fund may lead to frequent changes in the Fund's in-
            vestments, particularly in periods of volatile market movements. A
            change in the securities held by a Fund is known as "portfolio
            turnover." High portfolio turnover (e.g., over 100%) involves cor-
            respondingly greater expenses to a Fund, including brokerage com-
            missions or dealer mark-ups and other transaction costs on the
            sale of securities and reinvestments in other securities. See
            "Management of the Trust--Portfolio Transactions." Such sales may
            result in realization of taxable capital gains (including short-
            term capital gains which are generally taxed at ordinary income
            tax rates). See "Taxes." Portfolio turnover rates for fiscal 1998
            and 1997 for the Renaissance, Growth, Target, Opportunity, Inter-
            national, Innovation and Precious Metals Funds and for fiscal 1997
            for the remaining Funds (other than the Tax-Efficient Equity and
            Value 25 Funds) are set forth under "Financial Highlights." Port-
            folio turnover rates for the remaining Funds for fiscal 1997 were
            as follows: Balanced--199%; Equity Income--45%; Value--71%; Capi-
            tal Appreciation--87%; Mid-Cap Growth--82%; and Small-Cap Value--
            48%.  The annual portfolio turnover rate for the Tax-Efficient Eq-
            uity Fund is expected to be less than 40%. The annual portfolio
            turnover rate for the Value 25 Fund is expected to be less than
            150%.
 
Illiquid    Each Fund may invest in securities that are illiquid so long as no
Securities  more than 15% of the value of the Fund's net assets (taken at mar-
            ket value at the time of investment) would be invested in such se-
            curities. Certain illiquid securities may require pricing at fair
            value as determined in good faith under the supervision of the
            Board of Trustees. A Portfolio Manager may be subject to signifi-
            cant delays in disposing of illiquid securities, and transactions
            in illiquid securities may entail registration expenses and other
            transaction costs that are higher than those for transactions in
            liquid securities.
               The term "illiquid securities" for this purpose means securi-
            ties that cannot be disposed of within seven days in the ordinary
            course of business at approximately the amount at which a Fund has
            valued the securities. Illiquid securities are considered to in-
            clude, among other things, written over-the-counter options, secu-
            rities or other liquid assets being used as cover for such op-
            tions, repurchase agreements with maturities in excess of seven
            days, certain loan participation interests, fixed time deposits
            which are not subject to prepayment or provide for withdrawal pen-
            alties upon prepayment (other than overnight deposits), securities
            that are subject to legal or contractual restrictions on resale
            (such as privately placed debt securities), and other securities
            which legally or in the Adviser's or a Portfolio Manager's opinion
            may be deemed illiquid (not including securities issued pursuant
            to Rule 144A under the Securities Act of 1933 and certain commer-
            cial paper that the Adviser or a Portfolio Manager has determined
            to be liquid under procedures approved by the Board of Trustees).
 
                                                 
                                              April   , 1999 Prospectus   37    

<PAGE>
 
 
Investment
in
InvestmentCompanies
            The International Fund may invest up to 10% of its assets in secu-
            rities of other investment companies, such as closed-end manage-
            ment investment companies, or in pooled accounts or other invest-
            ment vehicles which invest in foreign markets. As a shareholder of
            an investment company, the International Fund may indirectly bear
            service and other fees which are in addition to the fees the Fund
            pays its service providers.
 
Credit and  All fixed income securities are subject to market risk and credit
Market Risk risk. Market risk relates to market-induced changes in a
of          security's value, usually as a result of changes in interest
FixedIncome rates. The value of a Fund's investments in fixed income securi-
Securities  ties will change as the general level of interest rates fluctuate.
            During periods of falling interest rates, the value of a Fund's
            fixed income securities generally rise. Conversely, during periods
            of rising interest rates, the value of a Fund's fixed income secu-
            rities generally decline. Credit risk relates to the ability of
            the issuer to make payments of principal and interest.
 
Service     Many of the services provided to the Funds depend on the smooth
Systems --  functioning of computer systems. Many systems in use today cannot
Year 2000   distinguish between the year 1900 and the year 2000. Should any of
Problem     the service systems fail to process information properly, that
            could have an adverse impact on the Funds' operations and services
            provided to shareholders. The Adviser, Distributor, Shareholder
            Servicing and Transfer Agent, Custodian, and certain other service
            providers to the Funds have reported that each is working toward
            mitigating the risks associated with the so-called "year 2000
            problem." However, there can be no assurance that the problem will
            be corrected in all respects and that the Funds' operations and
            services provided to shareholders will not be adversely affected,
            nor can there be any assurance that the year 2000 problem will not
            have an adverse effect on the entities whose securities are held
            by the Funds or on domestic or global equity markets or economies,
            generally.
 
"Fundamental"
Policies
            The investment objective of each of the Renaissance, Tax-Efficient
            Equity, Growth, Value 25, Target, Opportunity, International, In-
            novation and Precious Metals Funds described in this Prospectus
            may be changed by the Board of Trustees without shareholder ap-
            proval. The investment objective of each other Fund is fundamental
            and may not be changed without shareholder approval by vote of a
            majority of the outstanding shares of that Fund. If there is a
            change in a Fund's investment objective, including a change ap-
            proved by shareholder vote, shareholders should consider whether
            the Fund remains an appropriate investment in light of their then
            current financial position and needs.
 
            Performance Information
 
            From time to time the Trust may make available certain information
            about the performance of the Class A, Class B and Class C shares
            of some or all of the Funds. Information about a Fund's perfor-
            mance is based on that Fund's (or its predecessor's) record to a
            recent date and is not intended to indicate future performance.
            Performance information is computed separately for each Fund's
            Class A, Class B and Class C shares in accordance with the formu-
            las described below. Because Class B and Class C shares bear the
            expense of the distribution fee attending the deferred sales
            charge (Class B) and asset based sales charge (Class C) alterna-
            tives and certain other expenses, it is expected that, under nor-
            mal circumstances, the level of performance of a Fund's Class B
            and Class C shares will be lower than that of the Fund's Class A
            shares, although an investment in Class B or Class C shares is not
            reduced by the front-end sales charge generally applicable to an
            investment in Class A shares.
               The total return of Class A, Class B and/or Class C shares of
            all Funds may be included in advertisements or other written mate-
            rial. When a Fund's total return is advertised with respect to its
            Class A, Class B and/or Class C shares, it will be calculated for
            the past year, the past five years, and the past ten years (or if
            the Fund has been offered for a period shorter than one, five or
            ten years, that period will be substituted) since the establish-
            ment of the Fund or its predecessor series of PIMCO Advisors
            Funds, as more fully described in the Statement of Additional In-
            formation. For periods prior to the initial offering date of a
            particular class of shares, total return presentations for the
            class will be
 
38  PIMCO Funds: Multi-Manager Series

<PAGE>
 
            based on the historical performance of an older class of the Fund
            (if any) restated, as necessary, to reflect the current sales
            charges (if any) associated with the newer class. The older class
            to be used in each case is set forth in the Statement of Addi-
            tional Information. For these purposes, the performance of the
            older class will also be restated to reflect any different operat-
            ing expenses (such as different administrative fees and/or 12b-
            1/servicing fee charges) associated with the newer class. In cer-
            tain cases, such a restatement will result in performance of the
            newer class which is higher than if the performance of the older
            class were not restated to reflect the different operating ex-
            penses of the newer class. In such cases, the Trust's advertise-
            ments will also, to the extent appropriate, show the lower perfor-
            mance figure reflecting the actual operating expenses incurred by
            the older class for periods prior to the initial offering date of
            the newer class. Total return for each class is measured by com-
            paring the value of an investment in the Fund at the beginning of
            the relevant period (in the case of Class A shares, giving effect
            to the maximum initial sales charge) to the redemption value of
            the investment in the Fund at the end of the period (assuming im-
            mediate reinvestment of any dividends or capital gains distribu-
            tions at net asset value and giving effect to the deduction of the
            maximum CDSC which would be payable). Total return may be adver-
            tised using alternative methods that reflect all elements of re-
            turn, but that may be adjusted to reflect the cumulative impact of
            alternative fee and expense structures, such as the currently ef-
            fective advisory and administrative fees for the Funds.
               Quotations of yield for a Fund or class will be based on the
            investment income per share (as defined by the Securities and Ex-
            change Commission) during a particular 30-day (or one-month) pe-
            riod (including dividends and interest), less expenses accrued
            during the period ("net investment income"), and will be computed
            by dividing net investment income by the maximum public offering
            price per share on the last day of the period.
               The Funds may also provide current distribution information to
            their shareholders in shareholder reports or other shareholder
            communications, or in certain types of sales literature provided
            to prospective investors. Current distribution information for a
            particular class of a Fund will be based on distributions for a
            specified period (i.e., total dividends from net investment in-
            come), divided by the relevant class net asset value per share on
            the last day of the period and annualized. The rate of current
            distributions does not reflect deductions for unrealized losses
            from transactions in derivative instruments such as options and
            futures, which may reduce total return. Current distribution rates
            differ from standardized yield rates in that they represent what a
            class of a Fund has declared and paid to shareholders as of the
            end of a specified period rather than the Fund's actual net in-
            vestment income for that period.
               The Adviser and each Portfolio Manager may also report to
            shareholders or to the public in advertisements concerning its
            performance as adviser to clients other than the Funds, and on its
            comparative performance or standing in relation to other money
            managers. Such comparative information may be compiled or provided
            by independent ratings services or by news organizations. Any per-
            formance information, whether related to the Funds, the Adviser or
            the Portfolio Managers, should be considered in light of the
            Funds' investment objectives and policies, characteristics and
            quality of the Funds' portfolios, and the market conditions during
            the time period indicated, and should not be considered to be rep-
            resentative of what may be achieved in the future.
               Investment results of the Funds will fluctuate over time, and
            any representation of the Funds' total return or yield for any
            prior period should not be considered as a representation of what
            an investor's total return or yield may be in any future period.
 
            How to Buy Shares
               
            Class A, Class B and Class C shares of each Fund of the Trust are
            continuously offered through the Trust's principal underwriter,
            PIMCO Funds Distributors LLC (the "Distributor"), and through
            other firms which have dealer agreements with the Distributor
            ("participating brokers") or which have agreed to act as introduc-
            ing brokers for the Distributor ("introducing brokers"). [Except
            to the extent described under "Restrictions on Sales of and Ex-
            changes for Shares of the Opportunity Fund" below, the Opportunity
            Fund is closed to new investors.]     
 
                                                 
                                              April   , 1999 Prospectus   39    

<PAGE>
 
               There are two ways to purchase Class A, Class B or Class C
            shares: either 1) through your dealer or broker which has a dealer
            agreement with the Distributor; or 2) directly by mailing a PIMCO
            Funds account application (an "account application") with payment,
            as described below under the heading Direct Investment, to the
            Distributor (if no dealer is named in the account application, the
            Distributor may act as dealer).
               
               Each Fund currently offers and sells three classes of shares in
            this Prospectus (Class A, Class B and Class C). Shares may be pur-
            chased at a price equal to their net asset value per share next
            determined after receipt of an order, plus a sales charge which,
            at the election of the purchaser, may be imposed either (i) at the
            time of the purchase in the case of Class A shares (the "initial
            sales charge alternative"), (ii) on a contingent deferred basis in
            the case of Class B shares (the "deferred sales charge alterna-
            tive"), or (iii) by the deduction of an ongoing asset based sales
            charge in the case of Class C shares (the "asset based sales
            charge alternative"). In certain circumstances, Class A and Class
            C shares are also subject to a CDSC. See "Alternative Purchase Ar-
            rangements." Purchase payments for Class B and Class C shares are
            fully invested at the net asset value next determined after ac-
            ceptance of the trade. Purchase payments for Class A shares, less
            the applicable sales charge, are invested at the net asset value
            next determined after acceptance of the trade.     
               All purchase orders received by the Distributor prior to the
            close of regular trading (normally 4:00 p.m., Eastern time) on the
            New York Stock Exchange (the "Exchange"), on a regular business
            day, are processed at that day's offering price. However, orders
            received by the Distributor from dealers or brokers after the of-
            fering price is determined that day will receive such offering
            price if the orders were received by the dealer or broker from its
            customer prior to such determination and were transmitted to and
            received by the Distributor prior to its close of business that
            day (normally 5:00 p.m., Eastern time) or, in the case of certain
            retirement plans, received by the Distributor prior to 9:30 a.m.,
            Eastern time on the next business day. Purchase orders received on
            other than a regular business day will be executed on the next
            succeeding regular business day. The Distributor, in its sole dis-
            cretion, may accept or reject any order for purchase of Fund
            shares. The sale of shares will be suspended during any period in
            which the Exchange is closed for other than weekends or holidays,
            or if permitted by the rules of the Securities and Exchange Com-
            mission, when trading on the Exchange is restricted or during an
            emergency which makes it impracticable for the Funds to dispose of
            their securities or to determine fairly the value of their net as-
            sets, or during any other period as permitted by the Securities
            and Exchange Commission for the protection of investors.
               Except for purchases through the PIMCO Funds Auto-Invest plan,
            the PIMCO Funds Auto-Exchange plan, investments pursuant to the
            Uniform Gifts to Minors Act, and tax-qualified and wrap programs
            referred to below under "Tax-Qualified Retirement Plans" and
            "Sales at Net Asset Value," the minimum initial investment in
            Class A, Class B or Class C shares of any Fund of the Trust or any
            series of PIMCO Funds: Pacific Investment Management Series is
            $2,500, and the minimum additional investment is $100 per Fund.
            For information about dealer commissions, see "Alternative Pur-
            chase Arrangements" below. Persons selling Fund shares may receive
            different compensation for selling Class A, Class B or Class C
            shares. Normally, Fund shares purchased through participating bro-
            kers are held in the investor's account with that broker. No share
            certificates will be issued unless specifically requested in writ-
            ing by an investor or broker-dealer.
 
Direct      Investors who wish to invest in Class A, Class B or Class C shares
Investment  of the Trust directly, rather than through a participating broker,
            may do so by opening an account with the Distributor. To open an
            account, an investor should complete the account application. All
            shareholders who open direct accounts with the Distributor will
            receive from the Distributor individual confirmations of each pur-
            chase, redemption, dividend reinvestment, exchange or transfer of
            Trust shares, including the total number of Trust shares owned as
            of the confirmation date, except that purchases which result from
            the reinvestment of daily-accrued dividends and/or distributions
            will be confirmed once each calendar quarter. See "Distributions"
            below. Information regarding direct investment or any other fea-
            tures or plans offered by the Trust may be obtained by calling the
            Distributor at 1-800-426-0107 or by calling your broker.
 
40  PIMCO Funds: Multi-Manager Series

<PAGE>
 
 
Purchase by Investors who wish to invest directly may send a check payable to
Mail        PIMCO Funds Distributors LLC, along with a completed application
            form to:
 
                PIMCO Funds Distributors LLC
                   
                P.O. Box 9688     
                   
                Providence, RI 02940-0926     
 
               Purchases are accepted subject to collection of checks at full
            value and conversion into federal funds. Payment by a check drawn
            on any member of the Federal Reserve System can normally be con-
            verted into federal funds within two business days after receipt
            of the check. Checks drawn on a non-member bank may take up to 15
            days to convert into federal funds. In all cases, the purchase
            price is based on the net asset value next determined after the
            purchase order and check are accepted, even though the check may
            not yet have been converted into federal funds.
 
Subsequent  Subsequent purchases of Class A, Class B or Class C shares can be
Purchases   made as indicated above by mailing a check with a letter describ-
of Shares   ing the investment or with the additional investment portion of a
            confirmation statement. Except for subsequent purchases through
            the PIMCO Funds Auto-Invest plan, the PIMCO Funds Auto-Exchange
            plan, tax-qualified programs and PIMCO Funds Fund Link referred to
            below, and except during periods when an Automatic Withdrawal Plan
            is in effect, the minimum subsequent purchase is $100 in any Fund.
            All payments should be made payable to PIMCO Funds Distributors
            LLC and should clearly indicate the shareholder's account number.
            Checks should be mailed to the address above under "Purchase by
            Mail."
 
Tax-           
Qualified   The Distributor makes available retirement plan services and docu-
Retirement  ments for Individual Retirement Accounts (IRAs), including Roth
Plans       IRAs, for which Boston Safe Deposit & Trust Company serves as
            trustee and for IRA Accounts established with Form 5305-SIMPLE un-
            der the Internal Revenue Code of 1986, as amended (the "Code").
            These accounts include Simplified Employee Pension Plan (SEP) and
            Salary Reduction Simplified Employee Pension Plan (SAR/SEP) IRA
            accounts and prototype documents. In addition, prototype documents
            are available for establishing 403(b)(7) custodial accounts with
            Boston Safe Deposit & Trust Company as custodian. This type of
            plan is available to employees of certain non-profit organiza-
            tions.     
               The Distributor also makes available prototype documents for
            establishing Money Purchase and/or Profit Sharing Plans and 401(k)
            Retirement Savings Plans. These prototype plans require certain
            minimum per participant account sizes and certain minimum aggre-
            gate investments in the Trust, but are not subject to the small
            account fees described below that will apply to other plans. In-
            vestors should call the Distributor at 1-800-426-0107 for further
            information about these plans and should consult with their own
            tax advisers before establishing any retirement plan. Investors
            who maintain their accounts with participating brokers should con-
            sult their broker about similar types of accounts that may be of-
            fered through the broker. The minimum initial investment for all
            tax-qualified plans (except for employer-sponsored plans, SIMPLE
            IRAs, SEPs and SAR/SEPs) is $1,000 per Fund and the minimum subse-
            quent investment is $100. The minimum initial investment for em-
            ployer-sponsored plans, SIMPLE IRAs, SEPs and SAR/SEPs and the
            minimum subsequent investment per Fund for all such plans is $50.
 
PIMCO Funds The PIMCO Funds Auto-Invest plan provides for periodic investments
Auto-Invest into the shareholder's account with the Trust by means of auto-
            matic transfers of a designated amount from the shareholder's bank
            account. The minimum investment for eligibility in the PIMCO Funds
            Auto-Invest plan is $1,000 per Fund. Investments may be made
            monthly or quarterly, and may be in any amount subject to a mini-
            mum of $50 per month for each Fund in which shares are purchased
            through the plan. Further information regarding the PIMCO Funds
            Auto-Invest plan is available from the Distributor or participat-
            ing brokers. You may enroll by completing the appropriate section
            on the account application, or you may obtain an Auto-Invest ap-
            plication by calling the Distributor or your broker.
 
                                                 
                                              April   , 1999 Prospectus   41    

<PAGE>
 
               
            PIMCO Funds Fund Link ("Fund Link") connects your Fund account
            with a bank account. Fund Link may be used for subsequent pur-
            chases and for redemptions and other transactions described under
            "How to Redeem." Purchase transactions are effected by electronic
            funds transfers from the shareholder's account at a U.S. bank or
            other financial institution that is an Automated Clearing House
            ("ACH") member. Investors may use Fund Link to make subsequent
            purchases of shares in amounts from $50 to $10,000. To initiate
            such purchases, call 1-800-426-0107. All such calls will be re-
            corded. Fund Link is normally established within 45 days of re-
            ceipt of a Fund Link application by First Data Investor Services
            Group, Inc. (the "Transfer Agent"). The minimum investment by Fund
            Link is $50 per Fund. Shares will be purchased on the regular
            business day the Distributor receives the funds through the ACH
            system, provided the funds are received before the close of regu-
            lar trading on the Exchange. If the funds are received after the
            close of regular trading, the shares will be purchased on the next
            regular business day.     
 
PIMCO Funds    
Auto-       The PIMCO Funds Auto-Exchange plan establishes regular, periodic
Exchange    exchanges from one Fund to another Fund or to another series of
            the Trust or PIMCO Funds: Pacific Investment Management Series
            which offers Class A, Class B or Class C shares. The plan provides
            for regular investments into a shareholder's account in a specific
            Fund by means of automatic exchanges of a designated amount from
            another Fund account of the same class of shares and with identi-
            cal account registration. [Exchanges for shares of the Opportunity
            Fund are currently restricted to the extent provided under "Re-
            strictions on Sales of and Exchanges for Shares of the Opportunity
            Fund" below.]     
               Exchanges may be made monthly or quarterly, and may be in any
            amount subject to a minimum of $1,000 to open a new Fund account
            and of $50 for any existing Fund account for which shares are pur-
            chased through the plan. Further information regarding the PIMCO
            Funds Auto-Exchange plan is available from the Distributor at 1-
            800-426-0107 or participating brokers. You may enroll by complet-
            ing an application which may be obtained from the Distributor or
            by telephone request at 1-800-426-0107. For more information on
            exchanges, see "Exchange Privilege."
               Fund Link privileges must be requested on the account applica-
            tion. To establish Fund Link on an existing account, complete a
            Fund Link application, which is available from the Distributor or
            your broker, with signatures guaranteed from all shareholders of
            record for the account. See "Signature Guarantee" below. Such
            privileges apply to each shareholder of record for the account un-
            less and until the Distributor receives written instructions from
            a shareholder of record canceling such privileges. Changes of bank
            account information must be made by completing a new Fund Link ap-
            plication signed by all owners of record of the account, with all
            signatures guaranteed. The Distributor, the Transfer Agent and the
            Fund may rely on any telephone instructions believed to be genuine
            and will not be responsible to shareholders for any damage, loss
            or expenses arising out of such instructions. The Fund reserves
            the right to amend, suspend or discontinue Fund Link privileges at
            any time without prior notice. Fund Link does not apply to shares
            held in broker "street name" accounts.
 
PIMCO Funds
Fund Link
               
            [Restrictions on Sales of and Exchanges for Shares of the Opportu-
            nity Fund Shares of the Opportunity Fund are normally not avail-
            able for purchase by new investors in the Fund. However, in 1997,
            the Opportunity Fund began offering Class A and Class C shares to
            new investors (the "Offering") on a limited basis. With the excep-
            tion of certain benefit plans not currently eligible to acquire
            Opportunity Fund shares, all investors eligible to purchase shares
            of other Funds may participate in the Offering. Existing Class A
            shareholders and Class C shareholders of other series of the Trust
            or series of PIMCO Funds: Pacific Investment Management Series may
            purchase shares or acquire Opportunity Fund shares during the Of-
            fering by exchanging their Class A or Class C shares for the same
            class of Opportunity Fund shares in the manner described under
            "Exchange Privilege" below. The Offering will continue in effect
            until it is modified or terminated at the sole discretion of the
            Trust. Upon termination of the Offering, the Opportunity Fund will
            again be closed to new investors. For additional information re-
            garding the terms of the Offering, please contact the Distributor
            (at 1-800-426-0107) or your broker.     
               Except to the extent described above, shares of the Opportunity
            Fund are not available for purchase by new investors in the Fund.
            The following categories of existing shareholders will still be
            permitted to purchase additional
 
42  PIMCO Funds: Multi-Manager Series

<PAGE>
 
            shares of the Fund upon termination of the Offering: (i) share-
            holders who owned shares of the Opportunity Fund on December 31,
            1992 will be permitted to purchase additional shares of the Fund
            for as long as they continue to own shares of the Fund; (ii) par-
            ticipants in any self-directed qualified benefit plan (for exam-
            ple, 401(k) plans, 403(b) custodial accounts and Keogh plans, but
            not IRAs or SEP IRAs) that owned Opportunity Fund shares on March
            1, 1993 for any single plan participant will be eligible to direct
            the purchase of the Fund's shares by their plan account for so
            long as the plan continues to own shares of the Fund for any sin-
            gle plan participant; and (iii) shareholders who acquired shares
            during the Offering will be permitted to purchase additional
            shares of the Fund for as long as they continue to own shares of
            the Fund. Upon termination of the Offering, in the event a share-
            holder redeems all of his or her shares of the Opportunity Fund,
            or all participants in a self-directed qualified benefit plan de-
            scribed above redeem their shares of the Opportunity Fund, such
            shareholder, or the participants in such plan, will no longer be
            eligible to purchase shares of the Opportunity Fund. The Opportu-
            nity Fund does not offer Class B shares to new or existing invest-
            ors.
               Except pursuant to the Offering, shareholders of other Funds
            are not permitted to exchange any of their shares for Opportunity
            Fund shares unless the shareholders are independently eligible to
            purchase Opportunity Fund shares because they already owned such
            shares of the Fund on December 31, 1992 (March 1, 1993, in the
            case of the self-directed qualified benefit plans described above)
            or acquired such shares during the Offering.
               
               The Trust reserves the right at any time to modify these re-
            strictions, including the suspension of all sales of Opportunity
            Fund shares or the lifting of restrictions on different classes of
            investors and/or transactions.]     
 
Signature   When a signature guarantee is called for, the shareholder should
Guarantee   have "Signature Guaranteed" stamped under his signature and guar-
            anteed by any of the following entities: U.S. banks, foreign banks
            having a U.S. correspondent bank, credit unions, savings associa-
            tions, U.S. registered dealers and brokers, municipal securities
            dealers and brokers, government securities dealers and brokers,
            national securities exchanges, registered securities associations
            and clearing agencies (each an "Eligible Guarantor Institution").
            The Distributor reserves the right to reject any signature guaran-
            tee pursuant to its written signature guarantee standards or pro-
            cedures, which may be revised in the future to permit it to reject
            signature guarantees from Eligible Guarantor Institutions that do
            not, based on credit guidelines, satisfy such written standards or
            procedures. The Trust may change the signature guarantee require-
            ments from time to time upon notice to shareholders, which may be
            given by means of a new or supplemented Prospectus.
 
Account     Changes in registration or account privileges may be made in writ-
Registrationing to the Transfer Agent. Signature guarantees may be required.
Changes     See "Signature Guarantee" above. All correspondence must include
            the account number and must be sent to:
 
               PIMCO Funds Distributors LLC
                  
               P.O. Box 9688     
                  
               Providence, RI 02940-0926     
 
Small       Because of the disproportionately high costs of servicing accounts
Account Fee with low balances, a fee at an annual rate of $16, paid to PIMCO
            Advisors, the Funds' administrator, will automatically be deducted
            from direct accounts with balances falling below a minimum level.
            The valuation of accounts and the deduction are expected to take
            place during the last five business days of each calendar quarter.
            The fee will be deducted in quarterly installments from accounts
            with balances below $2,500 except for Uniform Gift to Minors, IRA,
            Roth IRA and Auto-Invest accounts, for which the limit is $1,000.
            Effective April 1, 1999, except for prototype plans described
            above, the fee will apply to employer-sponsored retirement plan
            accounts, Money Purchase and/or Profit Sharing plans, 401(k)
            plans, 403(b)(7) custodial accounts, SIMPLE IRAs, SEPs and
            SAR/SEPs. (A separate custodial fee may apply to IRAs, Roth IRAs
            and other retirement accounts.) No fee will be charged on any ac-
            count of a shareholder if the aggregate value of all of the
 
                                                 
                                              April   , 1999 Prospectus   43    

<PAGE>
 
            shareholder's accounts is at least $50,000. No small account fee
            will be charged to employee and employee-related accounts of PIMCO
            Advisors and/or its affiliates.
 
Minimum     Due to the relatively high cost to the Funds of maintaining small
Account     accounts, you are asked to maintain an account balance of at least
Size        the amount necessary to open the type of account involved. If your
            balance is below such minimum for three months or longer, the
            Funds' administrator shall have the right (except in the case of
            employer-sponsored retirement accounts) to close your account af-
            ter giving you 60 days in which to increase your balance. Your ac-
            count will not be liquidated if the reduction in size is due
            solely to market decline in the value of your Fund shares or if
            the aggregate value of all your accounts in PIMCO Funds exceeds
            $50,000.
 
            Alternative Purchase Arrangements
 
            The Trust offers investors three classes of shares in this Pro-
            spectus (Class A, Class B and Class C) which bear sales charges in
            different forms and amounts and which bear different levels of ex-
            penses. Through separate prospectuses, certain of the Funds cur-
            rently offer up to three additional classes of shares, Class D,
            Institutional Class and Administrative Class shares. Class D
            shares are offered through financial intermediaries. Institutional
            Class and Administrative Class shares are offered to pension and
            profit sharing plans, employee benefit trusts, endowments, founda-
            tions, corporations and other high net worth individuals. Class D,
            Institutional Class and Administrative Class shares are sold with-
            out a sales charge and have different expenses than Class A, Class
            B and Class C shares. As a result of lower sales charges and/or
            operating expenses, Class D, Institutional Class and Administra-
            tive Class shares are generally expected to achieve higher invest-
            ment returns than Class A, Class B or Class C shares. To obtain
            more information about the other classes of shares, please call
            the Distributor at 1-800-927-4648 (for Institutional and Adminis-
            trative Classes) or 1-888-87-PIMCO (for Class D).
               The alternative purchase arrangements offered in this Prospec-
            tus are designed to enable a retail investor to choose the method
            of purchasing Fund shares that is most beneficial to the investor
            based on all factors to be considered, which include: the amount
            and intended length of the investment; the particular Fund; and
            whether the investor intends to exchange shares for shares of
            other Funds. Generally, when making an investment decision, in-
            vestors should consider the anticipated life of an intended in-
            vestment in the Funds, the accumulated distribution and servicing
            fees plus CDSCs on Class B or Class C shares, the initial sales
            charge plus accumulated servicing fees on Class A shares (plus a
            CDSC in certain circumstances), the possibility that the antici-
            pated higher return on Class A shares due to the lower ongoing
            charges will offset the initial sales charge paid on such shares,
            the automatic conversion of Class B shares to Class A shares and
            the difference in the CDSCs applicable to Class A, Class B and
            Class C shares.
 
            Class A The initial sales charge alternative (Class A) might be
            preferred by investors purchasing shares of sufficient aggregate
            value to qualify for reductions in the initial sales charge appli-
            cable to such shares. Similar reductions are not available on the
            contingent deferred sales charge alternative (Class B) or the as-
            set based sales charge alternative (Class C). Class A shares are
            subject to a servicing fee but are not subject to a distribution
            fee and, accordingly, such shares are expected to pay correspond-
            ingly higher dividends on a per share basis. However, because ini-
            tial sales charges are deducted at the time of purchase, not all
            of the purchase payment for Class A shares is invested initially.
            Class B and Class C shares might be preferable to investors who
            wish to have all purchase payments invested initially, although
            remaining subject to higher distribution and servicing fees and,
            for certain periods, being subject to a CDSC. An investor who
            qualifies for an elimination of the Class A initial sales charge
            should also consider whether he or she anticipates redeeming
            shares in a time period which will subject such shares to a CDSC
            as described below. See "Initial Sales Charge Alternative--Class A
            Shares--Class A Deferred Sales Charge" below.
 
44  PIMCO Funds: Multi-Manager Series

<PAGE>
 
               
            Class B Class B shares might be preferred by investors who intend
            to invest in the Funds for longer periods and who do not intend to
            purchase shares of sufficient aggregate value to qualify for sales
            charge reductions applicable to Class A shares. Both Class B and
            Class C shares can be purchased at net asset value without an ini-
            tial sales charge. However, unlike Class C shares, Class B shares
            convert into Class A shares after the shares have been held for
            seven years. After the conversion takes place, the shares will no
            longer be subject to a CDSC, and will be subject to the servicing
            fees charged for Class A shares which are lower than the distribu-
            tion and servicing fees charged on either Class B or Class C
            shares. See "Deferred Sales Charge Alternative--Class B Shares"
            below. Class B shares are not available for purchase by employer
            sponsored retirement plans.     
 
            Class C Class C shares might be preferred by investors who intend
            to purchase shares which are not of sufficient aggregate value to
            qualify for Class A sales charges of 1% or less and who wish to
            have all purchase payments invested initially. Class C shares are
            preferable to Class B shares for investors who intend to maintain
            their investment for intermediate periods and therefore may also
            be preferable for investors who are unsure of the intended length
            of their investment. Unlike Class B shares, Class C shares are not
            subject to a CDSC after they have been held for one year and are
            subject to only a 1% CDSC during the first year. However, because
            Class C shares do not convert into Class A shares, Class B shares
            are preferable to Class C shares for investors who intend to main-
            tain their investment in the Funds for long periods. See "Asset
            Based Sales Charge Alternative--Class C Shares" below.
               In determining which class of shares to purchase, an investor
            should always consider whether any waiver or reduction of a sales
            charge or a CDSC is available. See generally "Initial Sales Charge
            Alternative--Class A Shares" and "Waiver of Contingent Deferred
            Sales Charges" below.
               The maximum single purchase of Class B shares of the Trust and
            series of PIMCO Funds: Pacific Investment Management Series ac-
            cepted is $249,999. The maximum single purchase of Class C shares
            of the Trust and series of PIMCO Funds: Pacific Investment Manage-
            ment Series accepted is $999,999. The Funds may refuse any order
            to purchase shares.
               For a description of the Distribution and Servicing Plans and
            distribution and servicing fees payable thereunder with respect to
            Class A, Class B and Class C shares, see "Distributor and Distri-
            bution and Servicing Plans" below.
               
            Waiver of Contingent Deferred Sales Charges The CDSC applicable to
            Class A and Class C shares is currently waived for (i) any partial
            or complete redemption in connection with (a) required minimum
            distributions to IRA account owners or beneficiaries who are age
            70 1/2 or older or (b) distributions to participants in employer-
            sponsored retirement plans upon attaining age 59 1/2 or on account
            of death or disability; (ii) any partial or complete redemption in
            connection with a qualifying loan or hardship withdrawal from an
            employer sponsored retirement plan; (iii) any complete redemption
            in connection with a distribution from a qualified employer re-
            tirement plan in connection with termination of employment or ter-
            mination of the employer's plan and the transfer to another em-
            ployer's plan or to an IRA (with the exception of a Roth IRA);
            (iv) any partial or complete redemption following death or dis-
            ability (as defined in the Code) of a shareholder (including one
            who owns the shares as joint tenant with his or her spouse) from
            an account in which the deceased or disabled is named, provided
            the redemption is requested within one year of the death or ini-
            tial determination of disability; (v) any redemption resulting
            from a return of an excess contribution to a qualified employer
            retirement plan or an IRA (with the exception of a Roth IRA); (vi)
            up to 10% per year of the value of an account which (a) has the
            value of at least $10,000 at the start of such year and (b) is
            subject to an Automatic Withdrawal Plan; (vii) redemptions by
            Trustees, officers and employees of the Trust, and by directors,
            officers and employees of the Distributor and the Adviser; (viii)
            redemptions effected pursuant to a Fund's right to involuntarily
            redeem a shareholder's account if the aggregate net asset value of
            shares held in such shareholder's account is less than a minimum
            account size specified in such Fund's prospectus; (ix) involuntary
            redemptions caused by operation of law; (x) redemption of shares
            of any Fund that is combined with another Fund, investment compa-
            ny,     
 
                                               November 1, 1998 Prospectus  45

<PAGE>
 
            or personal holding company by virtue of a merger, acquisition or
            other similar reorganization transaction; (xi) redemptions by a
            shareholder who is a participant making periodic purchases of not
            less than $50 through certain employer sponsored savings plans
            that are clients of a broker-dealer with which the Distributor has
            an agreement with respect to such purchases; (xii) redemptions ef-
            fected by trustees or other fiduciaries who have purchased shares
            for employer sponsored plans, the trustee, administrator, fiducia-
            ry, broker, trust company or registered investment adviser for
            which has an agreement with the Distributor with respect to such
            purchases; or (xiii) redemptions in connection with IRA accounts
            established with Form 5305-SIMPLE under the Code for which the
            Trust is the designated financial institution.
               The CDSC applicable to Class B shares is currently waived for
            any partial or complete redemption in each of the following cases:
            (a) in connection with required minimum distributions to IRA ac-
            count owners or to plan participants or beneficiaries who are age
            70 1/2 or older; (b) following death or disability (as defined in
            the Code) of a shareholder (including one who owns the shares as
            joint tenant with his or her spouse) from an account in which the
            deceased or disabled is named, provided the redemption is re-
            quested within one year of the death or initial determination of
            disability; and (c) up to 10% per year of the value of an account
            which (i) has a value of at least $100,000 at the start of such
            year and (ii) is subject to an Automatic Withdrawal Plan. See "How
            to Redeem--Automatic Withdrawal Plan."
               The Distributor may require documentation prior to waiver of
            the CDSC for any class, including distribution letters, certifica-
            tion by plan administrators, applicable tax forms, death certifi-
            cates, physicians' certificates, etc.
 
Initial
Sales
Charge
Alternative --
Class A
Shares
            Class A shares are sold at a public offering price equal to their
            net asset value per share plus a sales charge, as set forth below.
            As indicated below under "Class A Deferred Sales Charge," certain
            investors that purchase $1,000,000 or more of any Fund's Class A
            shares (and thus pay no initial sales charge) may be subject to a
            1% CDSC if they redeem such shares during the first 18 months af-
            ter their purchase.
 
 
              All Funds
 
<TABLE>
<CAPTION>
                                                               Discount or
                                Sales Charge as Sales Charge   Commission to
           Amount of            % of Net        as % of Public Dealers as % of
           Purchase             Amount Invested Offering Price Public Offering Price
              ----------------------------------------------------------------------
           <S>                  <C>             <C>            <C>
           $0 - $49,999         5.82%           5.50%          4.75%
              ----------------------------------------------------------------------
           $50,000 - $99,999    4.71%           4.50%          4.00%
              ----------------------------------------------------------------------
           $100,000 - $249,999  3.63%           3.50%          3.00%
              ----------------------------------------------------------------------
           $250,000 - $499,999  2.56%           2.50%          2.00%
              ----------------------------------------------------------------------
           $500,000 - $999,999  2.04%           2.00%          1.75%
              ----------------------------------------------------------------------
           $1,000,000+          0.00%(/1/)      0.00%(/1/)     0.75%(/2/)
</TABLE>
            1. As shown, investors that purchase more than $1,000,000 of any
            Fund's Class A shares will not pay any initial sales charge on
            such purchase. However, purchasers of $1,000,000 or more of Class
            A shares (other than those purchasers described below under "Sales
            at Net Asset Value" where no commission is paid) will be subject
            to a CDSC of 1% if such shares are redeemed during the first 18
            months after such shares are purchased unless such purchaser is
            eligible for a waiver of the CDSC as described under "Waiver of
            Contingent Deferred Sales Charges" above. See "Class A Deferred
            Sales Charge" below.
 
            2. The Distributor will pay a commission to dealers who sell
            amounts of $1,000,000 or more of Class A shares (or who sell Class
            A shares at net asset value to certain employer-sponsored plans as
            outlined in "Sales at Net Asset Value" below) of each Fund accord-
            ing to the following schedule: 0.75% of the first $2,000,000,
            0.50% of amounts from $2,000,001 to $5,000,000, and 0.25% of
            amounts over $5,000,000.
 
               Each Fund receives the entire net asset value of its Class A
            shares purchased by investors. The Distributor receives the sales
            charge shown above less any applicable discount or commission
            "reallowed" to participating brokers in the amounts indicated in
            the table above. The Distributor may, however, elect to reallow
            the entire sales charge to participating brokers for all sales
            with respect to which orders are placed with the Distributor for
            any particular Fund
 
46  PIMCO Funds: Multi-Manager Series

<PAGE>
 
            during a particular period. During such periods as may from time
            to time be designated by the Distributor, the Distributor will pay
            an additional amount of up to 0.50% of the purchase price on sales
            of Class A shares of all or selected Funds purchased to each par-
            ticipating broker which obtains purchase orders in amounts exceed-
            ing thresholds established from time to time by the Distributor.
            From time to time, the Distributor, its parent and/or its affili-
            ates may make additional payments to one or more participating
            brokers based upon factors such as the level of sales or the
            length of time clients' assets have remained in the Trust.
               Shares issued pursuant to the automatic reinvestment of income
            dividends or capital gains distributions are issued at net asset
            value and are not subject to any sales charges.
               Under the circumstances described below, investors may be enti-
            tled to pay reduced sales charges for Class A shares.
 
            Combined Purchase Privilege Investors may qualify for a reduced
            sales charge by combining purchases of the Class A shares of one
            or more Funds or other series of the Trust or of PIMCO Funds: Pa-
            cific Investment Management Series which offer Class A shares (to-
            gether, "eligible PIMCO Funds") into a "single purchase," if the
            resulting purchase totals at least $50,000. The term single pur-
            chase refers to:
                (i) a single purchase by an individual, or concurrent pur-
                    chases, which in the aggregate are at least equal to the
                    prescribed amounts, by an individual, his or her spouse
                    and their children under the age of 21 years purchasing
                    Class A shares of the eligible PIMCO Funds for his, her or
                    their own account;
                (ii) a single purchase by a trustee or other fiduciary pur-
                     chasing shares for a single trust, estate or fiduciary
                     account although more than one beneficiary is involved;
                     or
                (iii) a single purchase for the employee benefit plans of a
                      single employer.
                For further information, call the Distributor at 1-800-426-
                0107 or your broker.
 
            Cumulative Quantity Discount (Right of Accumulation) A purchase of
            additional Class A shares of any eligible PIMCO Fund may qualify
            for a Cumulative Quantity Discount at the rate applicable to the
            discount bracket obtained by adding:
                (i) the investor's current purchase;
                (ii) the value (at the close of business on the day of the
                     current purchase) of all Class A shares of any eligible
                     PIMCO Fund held by the investor computed at the maximum
                     offering price; and
                (iii) the value of all shares described in paragraph (ii)
                      owned by another shareholder eligible to be combined
                      with the investor's purchase into a "single purchase" as
                      defined above under "Combined Purchase Privilege."
               For example, if you owned Class A shares of the Equity Income
            Fund worth $25,000 at the current maximum offering price and
            wished to purchase Class A shares of the Growth Fund worth an ad-
            ditional $30,000, the sales charge for the $30,000 purchase would
            be at the 4.50% rate applicable to a single $55,000 purchase of
            shares of the Growth Fund, rather than the 5.50% rate.
 
            Letter of Intent An investor may also obtain a reduced sales
            charge by means of a written Letter of Intent, which expresses an
            intention to invest not less than $50,000 within a period of 13
            months in Class A shares of any eligible PIMCO Fund(s). Each pur-
            chase of shares under a Letter of Intent will be made at the pub-
            lic offering price or prices applicable at the time of such pur-
            chase to a single transaction of the dollar amount indicated in
            the Letter. At the investor's option, a Letter of Intent may in-
            clude purchases of Class A shares of any eligible PIMCO Fund made
            not more than 90 days prior to the date the Letter of Intent is
            signed; however, the 13-month period during which the Letter is in
            effect will begin on the date of the earliest purchase to be in-
            cluded and the sales charge on any purchases prior to the Letter
            will not be adjusted.
               Investors qualifying for the Combined Purchase Privilege de-
            scribed above may purchase shares of the eligible PIMCO Funds un-
            der a single Letter of Intent. For example, if at the time you
            sign a Letter of Intent to invest at least
 
                                                 
                                              April   , 1999 Prospectus   47    

<PAGE>
 
            $100,000 in Class A shares of any Fund, you and your spouse each
            purchase Class A shares of the Growth Fund worth $30,000 (for a
            total of $60,000), it will only be necessary to invest a total of
            $40,000 during the following 13 months in Class A shares of any of
            the Funds to qualify for the 3.50% sales charge on the total
            amount being invested (the sales charge applicable to an invest-
            ment of $100,000 in any of the Funds).
               A Letter of Intent is not a binding obligation to purchase the
            full amount indicated. The minimum initial investment under a Let-
            ter of Intent is 5% of such amount. Shares purchased with the
            first 5% of such amount will be held in escrow (while remaining
            registered in your name) to secure payment of the higher sales
            charge applicable to the shares actually purchased in the event
            the full intended amount is not purchased. If the full amount in-
            dicated is not purchased, a sufficient amount of such escrowed
            shares will be involuntarily redeemed to pay the additional sales
            charge applicable to the amount actually purchased, if necessary.
            Dividends on escrowed shares, whether paid in cash or reinvested
            in additional eligible PIMCO Fund shares, are not subject to es-
            crow. When the full amount indicated has been purchased, the es-
            crow will be released.
               If you wish to enter into a Letter of Intent in conjunction
            with your initial investment in Class A shares of a Fund, you
            should complete the appropriate portion of the account applica-
            tion. If you are a current Class A shareholder desiring to do so
            you may obtain a form of Letter of Intent by contacting the Dis-
            tributor at 1-800-426-0107 or any broker participating in this
            program.
 
            Reinstatement Privilege A Class A shareholder who has caused any
            or all of his shares to be redeemed may reinvest all or any por-
            tion of the redemption proceeds in Class A shares of any eligible
            PIMCO Fund at net asset value without any sales charge, provided
            that such reinvestment is made within 120 calendar days after the
            redemption or repurchase date. Shares are sold to a reinvesting
            shareholder at the net asset value next determined. See "How Net
            Asset Value is Determined." A reinstatement pursuant to this priv-
            ilege will not cancel the redemption transaction and, consequent-
            ly, any gain or loss so realized may be recognized for federal tax
            purposes except that no loss may be recognized to the extent that
            the proceeds are reinvested in shares of the same Fund within 30
            days. The reinstatement privilege may be utilized by a shareholder
            only once, irrespective of the number of shares redeemed, except
            that the privilege may be utilized without limit in connection
            with transactions whose sole purpose is to transfer a sharehold-
            er's interest in a Fund to his Individual Retirement Account or
            other qualified retirement plan account. An investor may exercise
            the reinstatement privilege by written request sent to the Dis-
            tributor or to the investor's broker.
 
            Sales at Net Asset Value Each Fund may sell its Class A shares at
            net asset value without a sales charge to (a) current or retired
            officers, trustees, directors or employees of the Trust, the Ad-
            viser or the Distributor, a parent, brother or sister of any such
            officer, trustee, director or employee or a spouse or child of any
            of the foregoing persons, or any trust, profit sharing or pension
            plan for the benefit of any such person and to any other person if
            the Distributor anticipates that there will be minimal sales ex-
            penses associated with the sale, (b) current or retired trustees
            of PIMCO Funds: Pacific Investment Management Series, a registered
            investment company for which Pacific Investment Management, an af-
            filiate of the Adviser, acts as investment adviser, (c) current
            registered representatives and other full-time employees of par-
            ticipating brokers or such persons' spouses or for trust or custo-
            dial accounts for their minor children, (d) trustees or other fi-
            duciaries purchasing shares for certain plans sponsored by employ-
            ers, professional organizations or associations or charitable or-
            ganizations, the trustee, administrator, fiduciary, broker, trust
            company or registered investment adviser for which has an agree-
            ment with the Distributor with respect to such purchases (includ-
            ing provisions related to minimum levels of investment in the
            Trust), and to participants in such plans and their spouses pur-
            chasing for their account(s) or IRAs (with the exception of Roth
            IRAs), (e) participants investing through accounts known as "wrap
            accounts" established with brokers or dealers approved by the Dis-
            tributor where such brokers or dealers are paid a single, inclu-
            sive fee for brokerage and investment management services, (f)
            client accounts of broker-dealers or registered investment advis-
            ers affiliated with such broker-dealers with which the Distributor
            has an agreement for the use of PIMCO Funds: Multi-Manager Series
            in particular investment products or programs, and (g) accounts
            for
 
48  PIMCO Funds: Multi-Manager Series

<PAGE>
 
            which a trust company affiliated with the Trust or the Adviser
            serves as trustee or custodian. As described above, the Distribu-
            tor will not pay any initial commission to dealers upon the sale
            of Class A shares to the purchasers described in this paragraph
            except for sales to purchasers described under (d) in this para-
            graph.
 
            Notification of Distributor An investor or participating broker
            must notify the Distributor whenever a quantity discount or re-
            duced sales charge is applicable to a purchase and must provide
            the Distributor with sufficient information at the time of pur-
            chase to verify that each purchase qualifies for the privilege or
            discount. Upon such notification, the investor will receive the
            lowest applicable sales charge. The quantity discounts described
            above may be modified or terminated at any time.
 
            Class A Deferred Sales Charge For all Funds, investors who pur-
            chase $1,000,000 or more of Class A shares (and, thus, purchase
            such shares without any initial sales charge) may be subject to a
            1% CDSC (the "Class A CDSC") if such shares are redeemed within 18
            months of their purchase. The Class A CDSC does not apply to in-
            vestors purchasing $1,000,000 or more of any Fund's Class A shares
            if such investors are otherwise eligible to purchase Class A
            shares without any sales charge because they are described under
            "Sales at Net Asset Value" above.
               For purchases subject to the Class A CDSC, a 1% CDSC will apply
            for any redemption of such Class A shares that occurs within 18
            months of their purchase. No CDSC will be imposed if the shares
            redeemed have been acquired through the reinvestment of dividends
            or capital gains distributions or if the amount redeemed is de-
            rived from increases in the value of the account above the amount
            of purchase payments subject to the CDSC. In determining whether a
            CDSC is payable, it is assumed that Class A shares acquired
            through the reinvestment of dividends and distributions are re-
            deemed first, and thereafter that Class A shares that have been
            held by an investor for the longest period of time are redeemed
            first.
               The Class A CDSC is currently waived in connection with certain
            redemptions as described above under "Alternative Purchase Ar-
            rangements--Waiver of Contingent Deferred Sales Charges." For more
            information about the Class A CDSC, call the Distributor at 1-800-
            426-0107.
 
            Participating Brokers Investment dealers and other financial in-
            termediaries provide varying arrangements for their clients to
            purchase and redeem Fund shares. Some may establish higher minimum
            investment requirements than set forth above. Firms may arrange
            with their clients for other investment or administrative services
            and may independently establish and charge transaction fees and/or
            other additional amounts to their clients for such services, which
            charges would reduce clients' return. Firms also may hold Fund
            shares in nominee or street name as agent for and on behalf of
            their customers. In such instances, the Trust's transfer agent
            will have no information with respect to or control over accounts
            of specific shareholders. Such shareholders may obtain access to
            their accounts and information about their accounts only from
            their broker. In addition, certain privileges with respect to the
            purchase and redemption of shares or the reinvestment of dividends
            may not be available through such firms. Some firms may partici-
            pate in a program allowing them access to their clients' accounts
            for servicing including, without limitation, transfers of regis-
            tration and dividend payee changes; and may perform functions such
            as generation of confirmation statements and disbursement of cash
            dividends. This Prospectus should be read in connection with such
            firms' material regarding their fees and services.
 
Deferred
SalesCharge Alternative
- -- Class B
Shares
            Class B shares are sold at their current net asset value without
            any initial sales charge. The full amount of an investor's pur-
            chase payment will be invested in shares of the Fund(s) selected.
            A CDSC will be imposed on Class B shares if an investor redeems an
            amount which causes the current value of the investor's account
            for a Fund to fall below the total dollar amount of purchase pay-
            ments subject to the CDSC, except that no CDSC is imposed if the
            shares redeemed have been acquired through the reinvestment of
            dividends or capital gains distributions or if the amount redeemed
            is derived from increases in the value of the account above the
            amount of purchase payments subject to the CDSC.
 
                                                 
                                              April   , 1999 Prospectus   49    

<PAGE>
 
               Whether a CDSC is imposed and the amount of the CDSC will de-
            pend on the number of years since the investor made a purchase
            payment from which an amount is being redeemed. Purchases are sub-
            ject to the CDSC according to the following schedule:
 
 
<TABLE>
<CAPTION>
           Year Since Purchase   Percentage Contingent
           Payment was Made      Deferred Sales Charge
           -------------------------------------------
           <S>                   <C>
           First                   5
           -------------------------------------------
           Second                  4
           -------------------------------------------
           Third                   3
           -------------------------------------------
           Fourth                  3
           -------------------------------------------
           Fifth                   2
           -------------------------------------------
           Sixth                   1
           -------------------------------------------
           Seventh                 0*
</TABLE>
 
            *After the seventh year, Class B shares convert into Class A
            shares as described below.
               The following example will illustrate the operation of the
            Class C CDSC:
               Assume that an individual opens an account and makes a purchase
            payment of $10,000 for Class C shares of a Fund and that six
            months later the value of the investor's account for that Fund has
            grown through investment performance and reinvestment of distribu-
            tions to $11,000. The investor then may redeem up to $1,000 from
            that Fund ($11,000 minus $10,000) without incurring a CDSC. If the
            investor should redeem $3,000, a CDSC would be imposed on $2,000
            of the redemption (the amount by which the investor's account for
            the Fund was reduced below the amount of the purchase payment). At
            the rate of 1%, the Class C CDSC would be $20.
               In determining whether an amount is available for redemption
            without incurring a CDSC, the purchase payments made for all Class
            C shares in the shareholder's account with the particular Fund are
            aggregated, and the current value of all such shares is aggregat-
            ed. Any CDSC imposed on a redemption of Class C shares is paid to
            the Distributor. Unlike Class B shares, Class C shares do not au-
            tomatically convert to any other class of shares of the Funds.
               Except as described below, for sales of Class C shares made and
            services rendered to Class C shareholders, the Distributor expects
            to make payments to participating brokers, at the time the share-
            holder purchases Class C shares, of 1.00% (representing .75% dis-
            tribution fees and .25% servicing fees) of the purchase amount for
            all Funds. For sales of Class C shares made to participants making
            periodic purchases of not less than $50 through certain employer
            sponsored savings plans which are clients of a broker-dealer with
            which the Distributor has an agreement with respect to such pur-
            chases, no payments are made at the time of purchase. During such
            periods as may from time to time be designated by the Distributor,
            the Distributor will pay an additional amount of up to .50% of the
            purchase price on sales of Class C shares of all or selected Funds
            purchased to each participating broker which obtains purchase or-
            ders in amounts exceeding thresholds established from time to time
            by the Distributor.
               The Class C CDSC is currently waived in connection with certain
            redemptions as described above under "Alternative Purchase Ar-
            rangements--Waiver of Contingent Deferred Sales Charges." For more
            information about the Class C CDSC, contact the Distributor at 1-
            800-426-0107.
 
               In determining whether a CDSC is payable, it is assumed that
            the purchase payment from which a redemption is made is the earli-
            est purchase payment from which a redemption or exchange has not
            already been fully effected.
               The following example will illustrate the operation of the
            Class B CDSC:
               Assume that an individual opens an account and makes a purchase
            payment of $10,000 for Class B shares of a Fund and that six
            months later the value of the investor's account for that Fund has
            grown through investment performance and reinvestment of distribu-
            tions to $11,000. The investor then may redeem up to $1,000 from
            that
 
50   PIMCO Funds: Multi-Manager Series

<PAGE>
 
            Fund ($11,000 minus $10,000) without incurring a CDSC. If the in-
            vestor should redeem $3,000, a CDSC would be imposed on $2,000 of
            the redemption (the amount by which the investor's account for the
            Fund was reduced below the amount of the purchase payment). At the
            rate of 5%, the Class B CDSC would be $100.
               In determining whether an amount is available for redemption
            without incurring a CDSC, the purchase payments made for all Class
            B shares in the shareholder's account with the particular Fund are
            aggregated, and the current value of all such shares is aggregat-
            ed. Any CDSC imposed on a redemption of Class B shares is paid to
            the Distributor.
               Class B shares are subject to higher distribution fees than
            Class A shares for a fixed period after their purchase, after
            which they automatically convert to Class A shares and are no
            longer subject to such higher distribution fees. Class B shares of
            each Fund automatically convert into Class A shares after they
            have been held for seven years.
               For sales of Class B shares made and services rendered to Class
            B shareholders, the Distributor intends to make payments to par-
            ticipating brokers, at the time a shareholder purchases Class B
            shares, of 4.00% of the purchase amount for each of the Funds.
            During such periods as may from time to time be designated by the
            Distributor, the Distributor will pay selected participating bro-
            kers an additional amount of up to .50% of the purchase price on
            sales of Class B shares of all or selected Funds purchased to each
            participating broker which obtains purchase orders in amounts ex-
            ceeding thresholds established from time to time by the Distribu-
            tor.
               The Class B CDSC is currently waived in connection with certain
            redemptions as described above under "Alternative Purchase Ar-
            rangements --Waiver of Contingent Deferred Sales Charges." For
            more information about the Class B CDSC, call the Distributor at
            1-800-426-0107.
 
Asset Based
Sales
Charge
Alternative --
Class C
Shares      Class C shares are sold at their current net asset value without
            any initial sales charge. A CDSC is imposed on Class C shares if
            an investor redeems an amount which causes the current value of
            the investor's account for a Fund to fall below the total dollar
            amount of purchase payments subject to the CDSC, except that no
            CDSC is imposed if the shares redeemed have been acquired through
            the reinvestment of dividends or capital gains distributions or if
            the amount redeemed is derived from increases in the value of the
            account above the amount of purchase payments subject to the CDSC.
            All of an investor's purchase payments are invested in shares of
            the Fund(s) selected.
               Whether a CDSC is imposed and the amount of the CDSC will de-
            pend on the number of years since the investor made a purchase
            payment from which an amount is being redeemed. Purchases are sub-
            ject to the CDSC according to the following schedule:
 
 
<TABLE>
<CAPTION>
           Year Since Purchase   Percentage Contingent
           Payment was Made      Deferred Sales Charge
           -------------------------------------------
           <S>                   <C>
           First                   1
           -------------------------------------------
           Thereafter              0
</TABLE>
 
 
               In determining whether a CDSC is payable, it is assumed that
            the purchase payment from which the redemption is made is the ear-
            liest purchase payment (from which a redemption or exchange has
            not already been effected).
                                                
                                             April   , 1999 Prospectus   51    
                                           
<PAGE>
 
 
            Exchange Privilege
               
            Except with respect to exchanges for shares of the Opportunity
            Fund (which are subject to certain restrictions) or other Funds
            for which sales are suspended to new investors, a shareholder may
            exchange Class A, Class B and Class C shares of any Fund for the
            same Class of shares of any other Fund in an account with identi-
            cal registration on the basis of their respective net asset val-
            ues. [For information on restrictions applicable to exchanges of
            shares for shares of the Opportunity Fund, see "Restrictions on
            Sales of and Exchanges for Shares of the Opportunity Fund" under
            "How to Buy Shares" above.] Class A, Class B and Class C shares of
            each Fund may also be exchanged for shares of the same class of
            another series of the Trust not offered in this Prospectus (in-
            cluding the PIMCO Funds Asset Allocation Series portfolios, which
            are so-called "funds-of-funds" portfolios offered by the Trust) or
            of a series of PIMCO Funds: Pacific Investment Management Series,
            an affiliated mutual fund family comprised primarily of fixed in-
            come portfolios managed by Pacific Investment Management, an af-
            filiate of the Adviser. There are currently no exchange fees or
            charges. All exchanges, including exchanges from PIMCO Funds Asset
            Allocation Series portfolios into other series of the Trust or of
            PIMCO Funds: Pacific Investment Management Series, are subject to
            the $2,500 minimum initial purchase requirement for each Fund, ex-
            cept with respect to tax-qualified programs and exchanges effected
            through the PIMCO Funds Auto-Exchange plan. An exchange will con-
            stitute a taxable sale for federal income tax purposes.     
               
               Investors who maintain their account with the Distributor may
            exchange shares by a written exchange request sent to PIMCO Funds
            Distributors LLC, P.O. Box 9688, Providence, RI 02940-0926 or, un-
            less the investor has specifically declined telephone exchange
            privileges on the account application or elected in writing not to
            utilize telephone exchanges, by a telephone request to the Dis-
            tributor at 1-800-426-0107. The Trust will employ reasonable pro-
            cedures to confirm that instructions communicated by telephone are
            genuine, and may be liable for any losses due to unauthorized or
            fraudulent instructions if it fails to employ such procedures. The
            Trust will require a form of personal identification prior to act-
            ing on a caller's telephone instructions, will provide written
            confirmations of such transactions and will record telephone in-
            structions. Exchange forms are available from the Distributor at
            1-800-426-0107 and may be used if there will be no change in the
            registered name or address of the shareholder. Changes in regis-
            tration information or account privileges may be made in writing
            to the Transfer Agent, First Data Investor Services Group, Inc.,
            P.O. Box 9688, Providence, RI 02940-0926, or by use of forms which
            are available from the Distributor. A signature guarantee is re-
            quired. See "How to Buy Shares--Signature Guarantee." Telephone
            exchanges may be made between 9:00 a.m., Eastern time and the
            close of regular trading (normally 4:00 p.m., Eastern time) on the
            Exchange on any day the Exchange is open (generally weekdays other
            than normal holidays). The Trust reserves the right to refuse ex-
            change purchases if, in the judgment of the Adviser, the purchase
            would adversely affect the Fund and its shareholders. In particu-
            lar, a pattern of exchanges characteristic of "market-timing"
            strategies may be deemed by the Adviser to be detrimental to the
            Trust or a particular Fund.     
               Currently, the Trust limits the number of "round trip" ex-
            changes an investor may make. An investor makes a "round trip" ex-
            change when the investor purchases shares of a particular Fund,
            subsequently exchanges those shares for shares of a different
            Fund, and then exchanges back into the originally purchased Fund.
            The Trust has the right to refuse any exchange for any investor
            who completes (by making the exchange back into the shares of the
            originally purchased Fund) more than six round trip exchanges in
            any twelve-month period. Although the Trust has no current inten-
            tion of terminating or modifying the exchange privilege other than
            as set forth in the preceding sentence, it reserves the right to
            do so at any time. Except as otherwise permitted by Securities and
            Exchange Commission regulations, the Trust will give 60 days' ad-
            vance notice to shareholders of any termination or material modi-
            fication of the exchange privilege. For further information about
            exchange privileges, contact your participating broker or call the
            Transfer Agent at 1-800-426-0107.
               With respect to Class B and Class C shares, or Class A shares
            subject to a CDSC, if less than all of an investment is exchanged
            out of a Fund, any portion of the investment attributable to capi-
            tal appreciation and/or reinvested dividends or capital gains dis-
            tributions will be exchanged first, and thereafter any portions
            exchanged will be from the
 

52   PIMCO Funds: Multi-Manager Series

<PAGE>
 
            earliest investment made in the Fund from which the exchange was
            made. Shareholders should take into account the effect of any ex-
            change on the applicability of any CDSC that may be imposed upon
            any subsequent redemption.
               Investors may also select the PIMCO Funds Auto-Exchange plan
            which establishes automatic periodic exchanges. For further infor-
            mation on automatic exchanges see "How to Buy Shares--PIMCO Funds
            Auto-Exchange" above.
 
            How to Redeem
               
            Class A, Class B or Class C shares may be redeemed through a par-
            ticipating broker, by telephone, by submitting a written redemp-
            tion request directly to the Transfer Agent (for non-broker ac-
            counts), or through an Automatic Withdrawal Plan or PIMCO Funds
            Fund Link. [In the event a shareholder or participants in certain
            self-directed qualified employee benefit plans eligible to pur-
            chase shares of the Opportunity Fund redeem(s) all of the share-
            holder's or the participants' shares of the Fund (including shares
            acquired during the Offering described under "How to Buy Shares--
            Restrictions on Sales of and Exchanges for Shares of the Opportu-
            nity Fund" above), such shareholder or participants in such plans
            will no longer be eligible to purchase shares of the Opportunity
            Fund.]     
               A CDSC may apply to a redemption of Class A, Class B or Class C
            shares. See "Alternative Purchase Arrangements" above. Shares are
            redeemed at their net asset value next determined after a proper
            redemption request has been received, less any applicable CDSC.
            There is no charge by the Distributor (other than an applicable
            CDSC) with respect to a redemption; however, a participating bro-
            ker who processes a redemption for an investor may charge custom-
            ary commissions for its services. Dealers and other financial
            services firms are obligated to transmit orders promptly. Requests
            for redemption received by dealers or other firms prior to the
            close of regular trading (normally 4:00 p.m., Eastern time) on the
            Exchange on a regular business day and received by the Distributor
            prior to the close of the Distributor's business day will be con-
            firmed at the net asset value effective as of the closing of the
            Exchange on that day, less any applicable CDSC.
 
Direct      A shareholder's original account application permits the share-
Redemption  holder to redeem by written request and by telephone (unless the
            shareholder specifically elects not to utilize telephone redemp-
            tions) and to elect one or more of the additional redemption pro-
            cedures described below. A shareholder may change the instructions
            indicated on his original account application, or may request ad-
            ditional redemption options, only by transmitting a written direc-
            tion to the Transfer Agent. Requests to institute or change any of
            the additional redemption procedures will require a signature
            guarantee.
               Redemption proceeds will normally be mailed to the redeeming
            shareholder within seven days or, in the case of wire transfer or
            Fund Link redemptions, sent to the designated bank account within
            one business day. Fund Link redemptions may be received by the
            bank on the second or third business day. In cases where shares
            have recently been purchased by personal check, redemption pro-
            ceeds may be withheld until the check has been collected, which
            may take up to 15 days. To avoid such withholding, investors
            should purchase shares by certified or bank check or by wire
            transfer.
 
Written        
Requests    To redeem shares in writing (whether or not represented by certif-
            icates), a shareholder must send the following items to the Trans-
            fer Agent, First Data Investor Services Group, Inc., P.O. Box
            9688, Providence, RI 02940-0926:     
                (1) a written request for redemption signed by all registered
                    owners exactly as the account is registered on the Trans-
                    fer Agent's records, including fiduciary titles, if any,
                    and specifying the account number and the dollar amount or
                    number of shares to be redeemed;
                (2) for certain redemptions described below, a guarantee of
                    all signatures on the written request or on the share cer-
                    tificate or accompanying stock power, if required, as de-
                    scribed under "How to Buy Shares--Signature Guarantee";
                                             
                                         April   , 1999 Prospectus   53    
                                       
<PAGE>
 
               (3) any share certificates issued for any of the shares to be
                   redeemed (see "Certificated Shares" below); and
               (4) any additional documents which may be required by the
                   Transfer Agent for redemption by corporations, partnerships
                   or other organizations, executors, administrators, trustees,
                   custodians or guardians, or if the redemption is requested
                   by anyone other than the shareholder(s) of record.
               
               Transfers of shares are subject to the same requirements. A
            signature guarantee is not required for redemptions of $50,000 or
            less, requested by and payable to all shareholders of record for
            the account, to be sent to the address of record for that account.
            To avoid delay in redemption or transfer, shareholders having any
            questions about these requirements should contact the Transfer
            Agent in writing or call the Distributor at 1-800-426-0107 before
            submitting a request. Redemption or transfer requests will not be
            honored until all required documents in the proper form have been
            received by the Transfer Agent. This redemption option does not
            apply to shares held in broker "street name" accounts.     
               If the proceeds of the redemption (i) exceed $50,000, (ii) are
            to be paid to a person other than the record owner, (iii) are to
            be sent to an address other than the address of the account on the
            Transfer Agent's records, or (iv) are to be paid to a corporation,
            partnership, trust or fiduciary, the signature(s) on the redemp-
            tion request and on the certificates, if any, or stock power must
            be guaranteed as described above, except that the Distributor may
            waive the signature guarantee requirement for redemptions up to
            $2,500 by a trustee of a qualified retirement plan, the adminis-
            trator for which has an agreement with the Distributor.
 
Telephone   The Trust accepts telephone requests for redemption of
Redemptions uncertificated shares for amounts up to $50,000 within any 7
            calendar day period, except for investors who have specifically
            declined telephone redemption privileges on the account application
            or elected in writing not to utilize telephone redemptions. The
            proceeds of a telephone redemption will be sent to the record
            shareholder at his record address. Changes in account information
            must be made in a written authorization with a signature guarantee.
            See "How to Buy Shares--Signature Guarantee." Telephone redemptions
            will not be accepted during the 30-day period following any change
            in an account's record address. This redemption option does not
            apply to shares held in broker "street name" accounts.
               By completing an account application, an investor agrees that
            the Trust, the Distributor and the Transfer Agent shall not be
            liable for any loss incurred by the investor by reason of the Trust
            accepting unauthorized telephone redemption requests for his
            account if the Trust reasonably believes the instructions to be gen-
            uine. Thus, shareholders risk possible losses in the event of a
            telephone redemption not authorized by them. The Trust may accept
            telephone redemption instructions from any person identifying 
            himself as the owner of an account or the owner's broker where the
            owner has not declined in writing to utilize this service. The
            Trust will employ reasonable procedures to confirm that
            instructions communicated by telephone are genuine, and may be
            liable for any losses due to unauthorized or fraudulent
            instructions if it fails to employ such procedures. The Trust will
            require a form of personal identification prior to acting on a
            caller's telephone instructions, will provide written confirmations
            of such transaction s and will record telephone instructions.
               
               A shareholder making a telephone redemption should call the
            Distributor at 1-800-426-0107 and state (i) the name of the share-
            holder as it appears on the Transfer Agent's records, (ii) his ac-
            count number with the Trust, (iii) the amount to be withdrawn and
            (iv) the name of the person requesting the redemption. Usually the
            proceeds are sent to the investor on the next Trust business day
            after the redemption is effected, provided the redemption request
            is received prior to the close of regular trading (normally 4:00
            p.m., Eastern time) on the Exchange that day. If the redemption
            request is received after the close of the Exchange, the redemp-
            tion is effected on the following Trust business day at that day's
            net asset value and the proceeds are usually sent to the investor
            on the second following Trust business day. The Trust reserves the
            right to terminate or modify the telephone redemption service at
            any time. During times of severe disruptions in the securities
            markets, the volume of calls may make it difficult to redeem by
            telephone, in which case a shareholder may wish to send a written
            request for redemption as described under "Written Requests"
            above. Telephone communications may be recorded by the Distributor
            or the Transfer Agent.     
 

54   PIMCO Funds: Multi-Manager Series

<PAGE>
 
 
Fund Link      
Redemptions If a shareholder has established Fund Link, the shareholder may
            redeem shares by telephone and have the redemption proceeds sent
            to a designated account at a financial institution. Fund Link is
            normally established within 45 days of receipt of a Fund Link ap-
            plication by the Transfer Agent. To use Fund Link for redemptions,
            call the Distributor at 1-800-426-0107. Subject to the limitations
            set forth above under "Telephone Redemptions," the Distributor,
            the Trust and the Transfer Agent may rely on instructions by any
            registered owner believed to be genuine and will not be responsi-
            ble to any shareholder for any loss, damage or expense arising out
            of such instructions. Requests received by the Transfer Agent
            prior to the close of regular trading (normally 4:00 p.m., Eastern
            time) on the Exchange on a business day will be processed at the
            net asset value on that day and the proceeds (less any CDSC) will
            normally be sent to the designated bank account on the following
            business day and received by the bank on the second or third busi-
            ness day. If the redemption request is received after the close of
            regular trading on the Exchange, the redemption is effected on the
            following business day. Shares purchased by check may not be re-
            deemed through Fund Link until such shares have been owned (i.e.,
            paid for) for at least 15 days. Fund Link may not be used to re-
            deem shares held in certificated form.     
              Changes in bank account information must be made by completing a
            new Fund Link application, signed by all owners of record of the
            account, with all signatures guaranteed. See "How to Buy Shares--
            Signature Guarantee." See "How to Buy Shares--PIMCO Funds Fund
            Link" for information on establishing the Fund Link privilege. The
            Trust may terminate the Fund Link program at any time without no-
            tice to shareholders. This redemption option does not apply to
            shares held in broker "street name" accounts.
 
PIMCO Funds PIMCO Funds Automated Telephone System ("ATS") is an automated
Automated   telephone system that enables shareholders to perform a number of
Telephone   account transactions automatically using a touch-tone telephone.
System      ATS may be used on already-established Fund accounts after you ob-
            tain a Personal Identification Number (PIN) by calling the special
            ATS number: 1-800-223-2413.
            Purchasing Shares. You may purchase shares in amounts up to
            $100,000 by telephone by calling 1-800-223-2413. You must have es-
            tablished ATS privileges to link your bank account with the Fund
            to pay for these purchases.
            Exchanging Shares. With the PIMCO Funds Exchange Privilege, you
            can exchange shares automatically by telephone from your Fund Link
            Account to another PIMCO Funds account you have already estab-
            lished by calling 1-800-223-2413. Please refer to "Exchange Privi-
            lege" for details.
            Redemptions. You may redeem shares by telephone automatically by
            calling 1-800-223-2413 and the Fund will send the proceeds di-
            rectly to your Fund bank account. Please refer to "How to Redeem"
            for details.
 
Expedited   If a shareholder has given authorization for expedited wire re-
Wire        demption, shares can be redeemed and the proceeds sent by federal
Transfer    wire transfer to a single previously designated bank account. Re-
Redemptions quests received by the Trust prior to the close of the Exchange
            will result in shares being redeemed that day at the next deter-
            mined net asset value (less any CDSC) and normally the proceeds
            being sent to the designated bank account the following business
            day. The bank must be a member of the Federal Reserve wire system.
            Delivery of the proceeds of a wire redemption request may be de-
            layed by the Trust for up to 7 days if the Distributor deems it
            appropriate under then current market conditions. Once authoriza-
            tion is on file, the Trust will honor requests by any person iden-
            tifying himself as the owner of an account or the owner's broker
            by telephone at 1-800-426-0107 or by written instructions. The
            Trust cannot be responsible for the efficiency of the Federal Re-
            serve wire system or the shareholder's bank. The Trust does not
            currently charge for wire transfers. The shareholder is responsi-
            ble for any charges imposed by the shareholder's bank. The minimum
            amount that may be wired is $2,500. The Trust reserves the right
            to change this minimum or to terminate the wire redemption privi-
            lege. Shares purchased by check may not be redeemed by wire trans-
            fer until such shares have been owned (i.e., paid for) for at
            least 15 days. Expedited wire transfer redemptions may be autho-
            rized by completing a form available from the Distributor. Wire
            redemptions may not be used to redeem shares in certificated form.
            To change the name of the single bank account designated to re-
            ceive wire redemption proceeds, it is necessary to send a
 

                                              April   , 1999 Prospectus   55
<PAGE>
 
               
             written request with signatures guaranteed to PIMCO Funds Distrib-
             utors LLC, P.O. Box 9688, Providence, RI 02940-0926. See "How to
             Buy Shares--Signature Guarantee." This redemption option does not
             apply to shares held in broker "street name" accounts.     
 
Certificated To redeem shares for which certificates have been issued, the 
Shares       certificates must be mailed to or deposited with the Trust, duly
             endorsed or accompanied by a duly endorsed stock power or by a
             written request for redemption. Signatures must be guaranteed as
             described under "How to Buy Shares--Signature Guarantee." Further
             documentation may be requested from institutions or fiduciary 
             accounts, such as corporations, custodians (e.g., under the Uniform
             Gifts to Minors Act), executors, administrators, trustees or
             guardians ("institutional account owners"). The redemption request
             and stock power must be signed exactly as the account is regis-
             tered, including indication of any special capacity of the regis-
             tered owner.
 
Automatic    An investor who owns or buys shares of a Fund having a net asset
Withdrawal   value of $10,000 or more may open an Automatic Withdrawal Plan and
Plan         have a designated sum of money (not less than $100 per Fund) paid
             monthly (or quarterly) to the investor or another person. Such a
             plan may be established by completing the appropriate section of
             the account application or you may obtain an Automatic Withdrawal
             Plan application from the Distributor or your broker. If an Auto-
             matic Withdrawal Plan is set up after the account is established
             providing for payment to a person other than the record share-
             holder or to an address other than the address of record, a signa-
             ture guarantee is required. See "How to Buy Shares--Signature
             Guarantee." Class A, Class B and Class C shares of any Fund are
             deposited in a plan account and all distributions are reinvested
             in additional shares of the particular class of the Fund at net
             asset value. Shares in a plan account are then redeemed at net as-
             set value (less any applicable CDSC) to make each withdrawal pay-
             ment. Any applicable CDSC may be waived for certain redemptions
             under an Automatic Withdrawal Plan. See "Alternative Purchase Ar-
             rangements--Waiver of Contingent Deferred Sales Charges."
 
               Redemptions for the purpose of withdrawals are ordinarily made
             on the business day preceding the day of payment at that day's
             closing net asset value and checks are mailed on the day of pay-
             ment selected by the shareholder. The Transfer Agent may acceler-
             ate the redemption and check mailing date by one day to avoid
             weekend delays. Payment will be made to any person the investor
             designates; however, if the shares are registered in the name of a
             trustee or other fiduciary, payment will be made only to the fidu-
             ciary, except in the case of a profit-sharing or pension plan
             where payment will be made to the designee. As withdrawal payments
             may include a return of principal, they cannot be considered a
             guaranteed annuity or actual yield of income to the investor. The
             redemption of shares in connection with an Automatic Withdrawal
             Plan may result in a gain or loss for tax purposes. Continued
             withdrawals in excess of income will reduce and possibly exhaust
             invested principal, especially in the event of a market decline.
             The maintenance of an Automatic Withdrawal Plan concurrently with
             purchases of additional shares of the Fund would be disadvanta-
             geous to the investor because of the CDSC that may become payable
             on such withdrawals in the case of Class A, Class B or Class C
             shares and because of the initial sales charge in the case of
             Class A shares. For this reason, the minimum investment accepted
             for a Fund while an Automatic Withdrawal Plan is in effect for
             that Fund is $1,000, and an investor may not maintain a plan for
             the accumulation of shares of the Fund (other than through rein-
             vestment of distributions) and an Automatic Withdrawal Plan at the
             same time. The Trust or the Distributor may terminate or change
             the terms of the Automatic Withdrawal Plan at any time.
               Because the Automatic Withdrawal Plan may involve invasion of
             capital, investors should consider carefully with their own finan-
             cial advisers whether the plan and the specified amounts to be
             withdrawn are appropriate in their circumstances. The Trust and
             the Distributor make no recommendations or representations in this
             regard.
 
Redemptions  The Trust agrees to redeem shares of each Fund solely in cash up
In Kind      to the lesser of $250,000 or 1% of the Fund's net assets during
             any 90-day period for any one shareholder. In consideration of the
             best interests of the remaining
 

56   PIMCO Funds: Multi-Manager Series

<PAGE>
 
            shareholders, the Trust reserves the right to pay any redemption
            proceeds exceeding this amount in whole or in part by a distribu-
            tion in kind of securities held by a Fund in lieu of cash. Except
            for Funds with a tax-efficient management strategy, it is highly
            unlikely that shares would ever be redeemed in kind. When shares
            are redeemed in kind, the redeeming shareholder should expect to
            incur transaction costs upon the disposition of the securities re-
            ceived in the distribution.
 
            Distributor and Distribution and Servicing Plans
 
            PIMCO Funds Distributors LLC (the "Distributor"), a wholly owned
            subsidiary of the Adviser, is the principal underwriter of the
            Trust's shares and in that connection makes distribution and ser-
            vicing payments to participating brokers and servicing payments to
            certain banks and other financial intermediaries in connection
            with the sale of Class B and Class C shares and servicing payments
            to participating brokers, certain banks and other financial inter-
            mediaries in connection with the sale of Class A shares. In the
            case of Class A shares, these parties are also compensated based
            on the amount of the front-end sales charge reallowed by the Dis-
            tributor, except in cases where Class A shares are sold without a
            front-end sales charge (although the Distributor may pay brokers
            additional compensation in connection with sales of Class A shares
            without a sales charge). In the case of Class B shares, partici-
            pating brokers and other financial intermediaries are compensated
            by an advance of a sales commission by the Distributor. In the
            case of Class C shares, part or all of the first year's distribu-
            tion and servicing fee is generally paid at the time of sale.
            Pursuant to a Distribution Agreement with the Trust, with respect
            to each Fund's Class A, Class B and Class C shares, the Distribu-
            tor bears various other promotional and sales related expenses,
            including the cost of printing and mailing prospectuses to persons
            other than current shareholders. The Distributor, located at 2187
            Atlantic Street, Stamford, Connecticut 06902, is a broker-dealer
            registered with the Securities and Exchange Commission.
 
            Class A Servicing Fees As compensation for services rendered and
            expenses borne by the Distributor in connection with personal
            services rendered to Class A shareholders of the Trust and the
            maintenance of Class A shareholder accounts, the Trust pays the
            Distributor servicing fees up to the annual rate of .25% (calcu-
            lated as a percentage of each Fund's average daily net assets at-
            tributable to Class A shares).
 
            Class B and Class C Distribution and Servicing Fees As compensa-
            tion for services rendered and expenses borne by the Distributor
            in connection with the distribution of Class B and Class C shares
            of the Trust, and in connection with personal services rendered to
            Class B and Class C shareholders of the Trust and the maintenance
            of Class B and Class C shareholder accounts, the Trust pays the
            Distributor servicing and distribution fees up to the annual rates
            set forth below (calculated as a percentage of each Fund's average
            daily net assets attributable to Class B and Class C shares,
            respectively):
 
 
<TABLE>
<CAPTION>
                      Servicing Distribution
           Fund       Fee       Fee
           ------------------------------
           <S>        <C>       <C>
           All Funds  .25%      .75%
</TABLE>
 
 
               The Class A servicing fees and Class B and Class C distribution
            and servicing fees paid to the Distributor are made under Distri-
            bution and Servicing Plans adopted pursuant to Rule 12b-l under
            the Investment Company Act of 1940, as amended (the "1940 Act"),
            and are of the type known as "compensation" plans. This means
            that, although the Trustees of the Trust are expected to take into
            account the expenses of the Distributor and its predecessors in
            their periodic review of the Distribution and Servicing Plans, the
            fees are payable to compensate the Distributor for services ren-
            dered even if the amount paid exceeds the Distributor's expenses.
 
    
                                             April   , 1999 Prospectus   57    

<PAGE>
 
               The distribution fee applicable to Class B and Class C shares
            may be spent by the Distributor on any activities or expenses pri-
            marily intended to result in the sale of Class B or Class C
            shares, respectively, including compensation to, and expenses (in-
            cluding overhead and telephone expenses) of, financial consultants
            or other employees of the Distributor or of participating or in-
            troducing brokers who engage in distribution of Class B or Class C
            shares, printing of prospectuses and reports for other than exist-
            ing Class B or Class C shareholders, advertising, and preparation,
            printing and distribution of sales literature. The servicing fee,
            applicable to Class A, Class B and Class C shares of the Trust,
            may be spent by the Distributor on personal services rendered to
            shareholders of the Trust and the maintenance of shareholder ac-
            counts, including compensation to, and expenses (including tele-
            phone and overhead expenses) of, financial consultants or other
            employees of participating or introducing brokers, certain banks
            and other financial intermediaries who aid in the processing of
            purchase or redemption requests or the processing of dividend pay-
            ments, who provide information periodically to shareholders show-
            ing their positions in a Fund's shares, who forward communications
            from the Trust to shareholders, who render ongoing advice concern-
            ing the suitability of particular investment opportunities offered
            by the Trust in light of the shareholders' needs, who respond to
            inquiries from shareholders relating to such services, or who
            train personnel in the provision of such services. Distribution
            and servicing fees may also be spent on interest relating to
            unreimbursed distribution or servicing expenses from prior years.
               Many of the Distributor's sales and servicing efforts involve
            the Trust as a whole, so that fees paid by Class A, Class B or
            Class C shares of any Fund may indirectly support sales and ser-
            vicing efforts relating to the other Funds' shares of the same
            class. In reporting its expenses to the Trustees, the Distributor
            itemizes expenses that relate to the distribution and/or servicing
            of a single Fund's shares, and allocates other expenses among the
            Funds based on their relative net assets. Expenses allocated to
            each Fund are further allocated among its classes of shares annu-
            ally based on the relative sales of each class, except for any ex-
            penses that relate only to the sale or servicing of a single
            class. The Distributor may make payments to brokers (and with re-
            spect to servicing fees only, to certain banks and other financial
            intermediaries) of up to the following percentages annually of the
            average daily net assets attributable to shares in the accounts of
            their customers or clients:
 
 
              All Funds(/1/)
 
<TABLE>
<CAPTION>
                            Servicing Distribution
                            Fee       Fee
           ---------------------------------------
           <S>              <C>       <C>
           Class A          .25%      N/A
           ---------------------------------------
           Class B (/2/)    .25%      None
           ---------------------------------------
           Class C
            (purchased
            before July 1,
            1991)           .25%      None
           ---------------------------------------
           Class C (/3/)
            (purchased on
            or after July
            1, 1991)        .25%      .65%
</TABLE>
 
            1. Applies, in part, to Class A, Class B and Class C shares of the
            Trust issued to former shareholders of PIMCO Advisors Funds in
            connection with the reorganizations/mergers of series of PIMCO Ad-
            visors Funds as/with Funds of the Trust in transactions which took
            place on January 17, 1997.
            2. Payable only with respect to shares outstanding for one year or
            more.
            3. Payable only with respect to shares outstanding for one year or
            more except in the case of shares for which no payment is made to
            the party at the time of sale.
 
               The Distributor may from time to time pay additional cash bo-
            nuses or other incentives to selected participating brokers in
            connection with the sale or servicing of Class A, Class B and
            Class C shares of the Funds. On some occasions, such bonuses or
            incentives may be conditioned upon the sale of a specified minimum
            dollar amount of the shares of a Fund and/or all of the Funds to-
            gether or a particular class of shares, during a specific period
            of time. The Distributor currently expects that such additional
            bonuses or incentives will not exceed .50% of the amount of any
            sale. In its capacity as administrator for the Funds, PIMCO Advi-
            sors may pay participating brokers and other intermediaries for
            sub-transfer agency and other services.
 

58   PIMCO Funds: Multi-Manager Series

<PAGE>
 
               If in any year the Distributor's expenses incurred in connec-
            tion with the distribution of Class B and Class C shares and, for
            Class A, Class B and Class C shares, in connection with the ser-
            vicing of shareholders and the maintenance of shareholder ac-
            counts, exceed the distribution and/or servicing fees paid by the
            Trust, the Distributor would recover such excess only if the Dis-
            tribution and Servicing Plan with respect to such class of shares
            continues to be in effect in some later year when the distribution
            and/or servicing fees exceed the Distributor's expenses. The Trust
            is not obligated to repay any unreimbursed expenses that may exist
            at such time, if any, as the relevant Distribution and Servicing
            Plan terminates.
               From time to time, expenses of principal underwriters incurred
            in connection with the distribution of Class B and Class C shares
            of the Funds, and in connection with the servicing of Class A,
            Class B and Class C shareholders of the Funds and the maintenance
            of Class A, Class B and Class C shareholder accounts, may exceed
            the distribution and/or servicing fees collected by the Distribu-
            tor. Class A, Class B and Class C Distribution and Servicing
            Plans, which are similar to the Trust's current Plans, were in ef-
            fect prior to January 17, 1997 in respect of series of PIMCO Advi-
            sors Funds that were predecessors of certain Funds of the Trust.
            The remaining Funds did not offer Class A, Class B or Class C
            shares prior to January 17, 1997. As of June 30, 1998, such ex-
            penses were approximately $11,946,000 in excess of payments under
            the Class A Plan, $22,563,000 in excess of payments under the
            Class B Plan and $2,252,000 in excess of payments under the Class
            C Plan.
 
            How Net Asset Value Is Determined
 
            The net asset values of Class A, Class B and Class C shares of
            each Fund of the Trust will be determined once on each day on
            which the Exchange is open (a "Business Day"), as of the close of
            regular trading (normally 4:00 p.m., Eastern time) on the Ex-
            change. Net asset value will not be determined on days on which
            the Exchange is closed.
               Portfolio securities and other assets for which market quota-
            tions are readily available are stated at market value. Fixed in-
            come securities are normally valued on the basis of quotations ob-
            tained from brokers and dealers or pricing services, which take
            into account appropriate factors such as institutional-sized trad-
            ing in similar groups of securities, yield, quality, coupon rate,
            maturity, type of issue, trading characteristics, and other market
            data. Certain fixed income securities for which daily market quo-
            tations are not readily available may be valued, pursuant to
            guidelines established by the Board of Trustees, with reference to
            fixed income securities whose prices are more readily obtainable
            and whose durations are comparable to the securities being valued.
            Short-term investments having a maturity of 60 days or less are
            valued at amortized cost, when the Board of Trustees determines
            that amortized cost is their fair value. Exchange-traded options,
            futures and options on futures are valued at the settlement price
            as determined by the appropriate clearing corporation. All other
            securities and assets are valued at their fair value as determined
            in good faith by the Trustees or by persons acting at their direc-
            tion.
               Quotations of foreign securities in foreign currency are con-
            verted to U.S. dollar equivalents using foreign exchange quota-
            tions received from independent dealers. The calculation of the
            net asset value of the International and Precious Metals Funds may
            not take place contemporaneously with the determination of the
            prices of certain portfolio securities of foreign issuers used in
            such calculation. Further, under the Trust's procedures, the
            prices of foreign securities are determined using information de-
            rived from pricing services and other sources. Information that
            becomes known to the Trust or its agents after the time that net
            asset value is calculated on any Business Day may be assessed in
            determining net asset value per share after the time of receipt of
            the information, but will not be used to retroactively adjust the
            price of the security so determined earlier or on a prior day.
            Events affecting the values of portfolio securities that occur be-
            tween the time their prices are determined and the close of regu-
            lar trading on the Exchange (normally 4:00 p.m., Eastern time) may
            not be reflected in the calculation of net asset value. If events
            materially affecting the value of such securities occur during
            such period, then these securities may be valued at fair value as
            determined by the Adviser or a Portfolio Manager and approved in
            good faith by the Board of Trustees.
                                                 
                                              April   , 1999 Prospectus   59    
                                       
<PAGE>
 
               Each Fund's liabilities are allocated among its classes. The
            total of such liabilities allocated to a class plus that class's
            distribution and/or servicing fees and any other expenses spe-
            cially allocated to that class are then deducted from the class's
            proportionate interest in the Fund's assets, and the resulting
            amount for each class is divided by the number of shares of that
            class outstanding to produce the class's "net asset value" per
            share. Under certain circumstances, the per share net asset value
            of the Class B and Class C shares of the Funds that do not declare
            regular income dividends on a daily basis may be lower than the
            per share net asset value of the Class A shares as a result of the
            daily expense accruals of the distribution fee applicable to the
            Class B and Class C shares. Generally, for Funds that pay income
            dividends, those dividends are expected to differ over time by ap-
            proximately the amount of the expense accrual differential between
            a particular Fund's classes.
 
            Distributions
 
            Shares begin earning dividends on the day after the date that
            funds are received by the Trust for the purchase of Class A, Class
            B and Class C shares. Net investment income from interest and div-
            idends, if any, will be declared and paid quarterly to sharehold-
            ers of record by the Balanced, Equity Income, Value and Renais-
            sance Funds. Net investment income from interest and dividends, if
            any, will be declared and paid at least annually to shareholders
            of record by the Tax-Efficient Equity, Capital Appreciation,
            Growth, Value 25, Mid-Cap Growth, Target, Small-Cap Value, Oppor-
            tunity, International, Innovation and Precious Metals Funds. Any
            net capital gains from the sale of portfolio securities
            will be distributed no less frequently than once annually. Net
            short-term capital gains may be paid more frequently.
               All dividends and/or distributions will be paid in the form of
            additional shares of the class of shares of the Fund to which the
            dividends and/or distributions relate or, at the election of the
            shareholder, of another Fund or other series of the Trust or of
            PIMCO Funds: Pacific Investment Management Series as described be-
            low, at net asset value, unless the shareholder elects to receive
            cash (either paid to shareholders directly or credited to their
            account with their participating broker). If a shareholder has
            elected to receive dividends and/or capital gain distributions in
            cash and the postal or other delivery service is unable to deliver
            checks to the shareholder's address of record, such shareholder's
            distributions will automatically be invested in the Money Market
            Fund of PIMCO Funds: Pacific Investment Management Series, until
            such shareholder is located. Dividends paid by each Fund with re-
            spect to each class of shares are calculated in the same manner
            and at the same time, but dividends on Class B and Class C shares
            are expected to be lower than dividends on Class A shares as a re-
            sult of the distribution fee applicable to Class B and Class C
            shares. There are no sales charges on reinvested dividends.
               
               Class A, Class B and Class C shareholders of the Trust may
            elect to invest dividends and/or distributions paid by any Fund in
            shares of the same class of any other Fund, another series of the
            Trust (such as a PIMCO Funds Asset Allocation Series portfolio),
            or a series of PIMCO Funds: Pacific Investment Management Series
            which offers such class of shares at net asset value. The share-
            holder must have an account existing in the Fund or series se-
            lected for investment with the identical registered name and ad-
            dress and must elect this option on the account application, on a
            form provided for that purpose or by a telephone request to the
            Distributor at 1-800-426-0107. For further information on this op-
            tion, contact your broker or call the Distributor at 1-800-426-
            0107.     
 
            Taxes
 
            Each Fund intends to qualify as a regulated investment company an-
            nually and to elect to be treated as a regulated investment com-
            pany under the Internal Revenue Code of 1986, as amended (the
            "Code"). As such, a Fund generally will not pay federal income tax
            on the income and gains it pays as dividends to its shareholders.
            In order to avoid a 4% federal excise tax, each Fund intends to
            distribute each year substantially all of its net income and
            gains.
 

60   PIMCO Funds: Multi-Manager Series

<PAGE>
 
               Shareholders subject to U.S. federal income tax will be subject
            to tax on dividends received from a Fund, regardless of whether
            received in cash or reinvested in additional shares. Distributions
            received by tax-exempt shareholders will not be subject to federal
            income tax to the extent permitted under applicable tax law. All
            shareholders must treat dividends, other than capital gain divi-
            dends, exempt-interest dividends and dividends that represent a
            return of capital to shareholders, as ordinary income. In particu-
            lar, distributions derived from short-term gains will be treated
            as ordinary income. Dividends designated by a Fund as capital gain
            dividends derived from the Fund's net capital gains (that is, the
            excess of its net long-term capital gains over its net short-term
            capital losses) are taxable to shareholders as long-term capital
            gain (generally subject to a 20% tax rate) except as provided by
            an applicable tax exemption. Any distributions that are not from a
            Fund's net investment income or net capital gain may be character-
            ized as a return of capital to shareholders or, in some cases, as
            capital gain. Certain dividends declared in October, November or
            December of a calendar year are taxable to shareholders (who oth-
            erwise are subject to tax on dividends) as though received on De-
            cember 31 of that year if paid to shareholders during January of
            the following calendar year. Each Fund will advise shareholders
            annually of the amount and nature of the dividends paid to them.
            Dividends derived from interest on certain U.S. Government securi-
            ties may be exempt from state and local taxes, although interest
            on mortgage-backed U.S. Government securities may not be so ex-
            empt. While the Tax-Efficient Equity Fund seeks to minimize tax-
            able distributions, the Fund may be expected to earn and distrib-
            ute taxable income and may also be expected to realize and dis-
            tribute capital gains from time to time.
               Current federal tax law requires the holder of a U.S. Treasury
            or other fixed income zero-coupon security to accrue as income
            each year a portion of the discount at which the security was pur-
            chased, even though the holder receives no interest payment in
            cash on the security during the year. In addition, pay-in-kind se-
            curities will give rise to income which is required to be distrib-
            uted and is taxable even though the Fund holding the security re-
            ceives no interest payment in cash on the security during the
            year. Also, a portion of the yield on certain high yield securi-
            ties (including certain pay-in-kind securities) issued after July
            10, 1989 may be treated as dividends. Accordingly, each Fund that
            holds the foregoing kinds of securities may be required to pay out
            as an income distribution each year an amount which is greater
            than the total amount of cash interest the Fund actually received.
            Such distributions may be made from the cash assets of the Fund or
            by liquidation of portfolio securities, if necessary. The Fund may
            realize gains or losses from such liquidations. In the event the
            Fund realizes net capital gains from such transactions, its share-
            holders may receive a larger capital gain distribution, if any,
            than they would in the absence of such transactions.
               Taxable shareholders should note that the timing of their in-
            vestment or redemptions could have undesirable tax consequences.
            Dividends and distributions on a Fund's shares are generally sub-
            ject to federal income tax as described herein to the extent they
            do not exceed the Fund's realized income and gains, even though
            such dividends and distributions may economically represent a re-
            turn of a particular shareholder's investment. Such distributions
            are likely to occur in respect of shares purchased at a time when
            the Fund's net asset value reflects gains that are either
            unrealized or realized but not distributed. Such realized gains
            may be required to be distributed even when a Fund's net asset
            value also reflects unrealized losses. If shares are redeemed be-
            fore payment of an exempt-interest dividend, shareholders may re-
            alize a taxable capital gain, whereas by waiting and receiving the
            exempt-interest dividend, a portion of their share value would
            have been received in the form of tax-free income.
               The preceding discussion relates only to federal income tax;
            the consequences under other tax laws may differ. Shareholders
            should consult their tax advisers as to the possible application
            of foreign, state and local income tax laws to Trust dividends and
            capital gain distributions. For additional information relating to
            the tax aspects of investing in a Fund, see the Statement of Addi-
            tional Information.
                                                 
                                              April   , 1999 Prospectus   61    
                                       
<PAGE>
 
 
            Management of the Trust
 
            The business affairs of the Trust are managed under the direction
            of the Board of Trustees. Information about the Trustees and the
            Trust's executive officers may be found in the Statement of Addi-
            tional Information under the heading "Management of the Trust."
 
Investment     
Adviser     PIMCO Advisors serves as investment adviser to the Funds pursuant
            to an investment advisory agreement with the Trust. PIMCO Advisors
            is a Delaware limited partnership organized in 1987. PIMCO Advi-
            sors provides investment management and advisory services to pri-
            vate accounts of institutional and individual clients and to mu-
            tual funds. Total assets under management by PIMCO Advisors and
            its subsidiary partnerships as of December 31, 1998 were approxi-
            mately $244.2 billion. The general partners of PIMCO Advisors are
            PIMCO Partners, G.P. and PIMCO Advisors Holdings L.P. ("PAH").
            PIMCO Partners, G.P. is a general partnership between PIMCO Hold-
            ing LLC, a Delaware limited liability company and an indirect
            wholly-owned subsidiary of Pacific Life Insurance Company, and
            PIMCO Partners LLC, a California limited liability company con-
            trolled by the current Managing Directors and two former Managing
            Directors of Pacific Investment Management. PIMCO Partners, G.P.
            is the sole general partner of PAH. PIMCO Advisors is governed by
            a Management Board, which exercises substantially all of the gov-
            ernance powers of the general partner and serves as the functional
            equivalent of a board of directors. PIMCO Advisors' address is 800
            Newport Center Drive, Newport Beach, California 92660. PIMCO Advi-
            sors is registered as an investment adviser with the Securities
            and Exchange Commission. PIMCO Advisors currently has seven sub-
            sidiary investment adviser partnerships, the following six of
            which manage one or more of the Funds: Blairlogie, Cadence, Colum-
            bus Circle, NFJ, Pacific Investment Management and Parametric. [On
            or about March 31, 1999, it is anticipated that PIMCO Advisors
            will sell substantially all of its ownership interest in
            Blairlogie. See "Portfolio Managers--Blairlogie" below.]     
               Under the investment advisory agreement, PIMCO Advisors, sub-
            ject to the supervision of the Board of Trustees, is responsible
            for providing advice and guidance with respect to the Funds and
            for managing, either directly or through others selected by the
            Adviser, the investment of the Funds. PIMCO Advisors also fur-
            nishes to the Board of Trustees periodic reports on the investment
            performance of each Fund.
 
Portfolio
Managers       
            Pursuant to portfolio management agreements, PIMCO Advisors em-
            ploys separate firms to serve as Portfolio Managers for the Funds,
            except that the PIMCO Equity Advisors Division of PIMCO Advisors
            manages the Growth, Target, Opportunity and Innovation Funds. Each
            such firm is an affiliate of PIMCO Advisors except for Van Eck,
            which serves as Portfolio Manager for the Precious Metals Fund.
            PIMCO Advisors (and not the Funds or the Trust) compensates the
            Portfolio Managers it retains from its advisory fee. Each Portfo-
            lio Manager has full investment discretion and makes all determi-
            nations with respect to the investment of a Fund's assets, or, for
            the Balanced Fund, with respect to the portion of the Fund's as-
            sets allocated to the Portfolio Manager for investment, and makes
            all determinations respecting the purchase and sale of a Fund's
            securities and other investments. If a separate firm ceases to
            serve as Portfolio Manager for a Fund, PIMCO Advisors will either
            assume full responsibility for the management of that Fund, or re-
            tain a new portfolio manager subject to the approval of the Trust-
            ees and, if required, the Fund's shareholders.     
               
            PIMCO Equity Advisors Division of PIMCO Advisors manages the
            Growth, Target, Innovation and Opportunity Funds. Information
            about PIMCO Advisors is provided above under "Investment Adviser."
                   
               Kenneth W. Corba, the Chief Investment Officer of the PIMCO Eq-
            uity Advisors Division, is primarily responsible for the day-to-
            day portfolio management of the Growth and Target Funds. Mr. Corba
            has 14 years' investment management experience. Mr. Corba was most
            recently Chief Investment Service Officer of Eagle Asset Manage-
            ment, and prior to that he was a principal and a Senior Vice Pres-
            ident at Stein Roe and Farnham. Mr. Corba received his bachelor's
            degree and MBA from the University of Michigan. He is a chartered
            financial analyst. Michael F. Gaffney,     
 
62 PIMCO Funds: Multi-Manager Series 
<PAGE>
 

               
            the Managing Director of the PIMCO Equity Advisors Division, is
            primarily responsible for the day-to-day management of the Oppor-
            tunity Fund. He has [ ] years' investment management experience.
            Mr. Gaffney previously served as a Senior Vice President of Alli-
            ance Capital Management L.P. He received his bachelor's degree
            from St. John's University and his MBA from New York
            University.Dennis P. McKechnie, a Portfolio Manager at the PIMCO
            Equity Advisors Division, has primary responsibility for the day-
            to-day portfolio management of the Innovation Fund. He previously
            shared responsibility for the Fund as a Portfolio Manager at Co-
            lumbus Circle. Mr. McKechnie has 8 years' investment management
            experience. He received his bachelor's degree from Purdue Univer-
            sity and his MBA from Columbia University.     
               
            Columbus Circle manages the Renaissance Fund. Columbus Circle is
            an investment management firm organized as a general partnership.
            Columbus Circle has two partners: PIMCO Advisors as the supervi-
            sory partner, and Columbus Circle Investors Management Inc. as the
            managing partner. Columbus Circle Investors Division of Thomson
            Advisory Group L.P. ("TAG"), the predecessor investment adviser to
            Columbus Circle, commenced operations in 1975. Accounts managed by
            Columbus Circle had combined assets as of December 31, 1998 of ap-
            proximately $9.6 billion. Columbus Circle's address is Metro Cen-
            ter, One Station Place, 8th Floor, Stamford, Connecticut 06902.
            Columbus Circle is registered as an investment adviser with the
            Securities and Exchange Commission.     
               
               At the center of Columbus Circle's equity investment strategy
            is its theory of Positive Momentum & Positive Surprise. This the-
            ory asserts that a good company doing better than generally ex-
            pected will experience a rise in its stock price, and conversely,
            a company falling short of expectations will experience a drop in
            its stock price. Based on this theory, Columbus Circle attempts to
            manage the Renaissance Fund with a view to investing in growing
            companies that are surprising the market with business results
            that are better than anticipated.     
               
               Investment decisions made by Columbus Circle are generally made
            by one or more committees, although Clifford G. Fox has primary
            responsibility for the day-to-day management of the Renaissance
            Fund. Mr. Fox, a Managing Director of Columbus Circle, has 17
            years of investment management experience. He received his bache-
            lor's degree from the University of Pennsylvania and his MBA from
            New York University, and he is a Chartered Financial Analyst.     
               
            Cadence manages the Capital Appreciation and Mid-Cap Growth Funds,
            as well as a portion of the Common Stock Segment of the Balanced
            Fund (the "Cadence Funds"). Cadence is an investment management
            firm organized as a general partnership. Cadence has two partners:
            PIMCO Advisors as the supervisory partner, and Cadence Capital
            Management Inc. as the managing partner. Cadence Capital Manage-
            ment Corporation, the predecessor investment adviser to Cadence,
            commenced operations in 1988. Accounts managed by Cadence had com-
            bined assets as of December 31, 1998 of approximately $7.4 bil-
            lion. Cadence's address is Exchange Place, 53 State Street, Bos-
            ton, Massachusetts 02109. Cadence is registered as an investment
            adviser with the Securities and Exchange Commission.     
               David B. Breed, William B. Bannick, Katherine A. Burdon and Pe-
            ter B. McManus are primarily responsible for the day-to-day man-
            agement of the Cadence Funds. Mr. Breed is a Managing Director,
            the Chief Executive Officer, and a founding partner of Cadence,
            and has 25 years' investment management experience. He has been
            the driving force in developing the firm's growth-oriented stock
            screening and selection process and has been with Cadence or its
            predecessor since its inception. Mr. Breed graduated from the Uni-
            versity of Massachusetts and received his MBA from the Wharton
            School of Business. He is a Chartered Financial Analyst. Mr.
            Bannick is a Managing Director and Executive Vice President of Ca-
            dence and has 13 years' investment management experience. He pre-
            viously served as Executive Vice President of George D. Bjurman &
            Associates and as Supervising Portfolio Manager of Trinity Invest-
            ment Management Corporation. Mr. Bannick joined the predecessor of
            Cadence in 1992. He graduated from the University of Massachusetts
            and received his MBA from Boston University. Mr. Bannick is
            a Chartered Financial Analyst. Ms. Burdon is a Managing Director
            and Portfolio Manager of Cadence and has 10 years' investment man-
            agement experience. She previously served as a Vice President and
            Portfolio Manager of The Boston Company. Ms. Burdon joined the
            predecessor of Cadence in 1993. She graduated from Stanford Uni-
            versity and received a Master of
 
   
                                                         April  , 1999  63    
<PAGE>
 
            Science degree from Northeastern University. Ms. Burdon is a
            Chartered Financial Analyst and Certified Public Accountant. Mr.
            McManus is Director of Fund Management of Cadence and has 21
            years' investment management experience. He previously served as a
            Vice President of Bank of Boston. Mr. McManus joined Cadence in
            1994. He graduated from the University of Massachusetts, and he is
            certified as a Financial Planner.
               
            NFJ manages the Equity Income, Value, Value 25 and Small-Cap Value
            Funds, as well as a portion of the Common Stock Segment of the
            Balanced Fund. NFJ is an investment management firm organized as a
            general partnership. NFJ has two partners: PIMCO Advisors as the
            supervisory partner, and NFJ Management Inc. as the managing part-
            ner. NFJ Investment Group, Inc., the predecessor investment ad-
            viser to NFJ, commenced operations in 1989. Accounts managed by
            NFJ had combined assets as of December 31, 1998 of approximately
            $2.4 billion. NFJ's address is 2121 San Jacinto, Suite 1840, Dal-
            las, Texas 75201. NFJ is registered as an investment adviser with
            the Securities and Exchange Commission.     
               Chris Najork and Benjamin Fischer are responsible for the day-
            to-day management of the Equity Income Fund and the portion of the
            Common Stock Segment of the Balanced Fund allocated to NFJ. Mr.
            Najork is a Managing Director and a founding partner of NFJ and
            has 30 years' experience encompassing equity research and portfo-
            lio management. He received his bachelor's degree and MBA from
            Southern Methodist University, and he is a Chartered Financial An-
            alyst. Mr. Fischer is a Managing Director and a founding partner
            of NFJ and has 32 years' experience encompassing equity research
            and portfolio management. He received his bachelor's degree from
            Oklahoma University and his MBA from the New York University Grad-
            uate School of Business. He is a Chartered Financial Analyst.
            Messrs. Najork, Fischer and Paul A. Magnuson are primarily respon-
            sible for the day-to-day management of the Value Fund and the
            Small-Cap Value Fund. Mr. Magnuson, a research analyst at NFJ, has
            13 years' experience in equity research and portfolio management.
            He received his bachelor's degree in Finance from the University
            of Nebraska-Lincoln. Messrs. Najork, Fischer and Cliff Hoover are
            primarily responsible for the day-to-day management of the Value
            25 Fund. Mr. Hoover is a principal at NFJ and has 24 years' expe-
            rience in portfolio management and banking. He received his bache-
            lor's degree and MBA from Texas Tech University. He is a Chartered
            Financial Analyst.
               
            Blairlogie manages the International Fund. Blairlogie is an in-
            vestment management firm, organized as a limited partnership under
            the laws of the United Kingdom, with two general partners and one
            limited partner. The general partners are PIMCO Advisors, which
            serves as the supervisory partner, and Blairlogie Holdings Limit-
            ed, a wholly owned subsidiary of PIMCO Advisors, which serves as
            the managing partner. The limited partner is Blairlogie Partners
            L.P., a limited partnership, the general partner of which is Pa-
            cific Asset Management LLC (a subsidiary of Pacific Life Insurance
            Company), and the limited partners of which are the principal ex-
            ecutive officers of Blairlogie Capital Management. Blairlogie Cap-
            ital Management Ltd., the predecessor investment adviser to
            Blairlogie, commenced operations in 1992. Accounts managed by
            Blairlogie had combined assets as of December 31, 1998 of approxi-
            mately $900 million. Blairlogie's address is 4th Floor, 125
            Princes Street, Edinburgh EH2 4AD, Scotland. Blairlogie is regis-
            tered as an investment adviser with the Securities and Exchange
            Commission in the United States and with the Investment Management
            Regulatory Organisation in the United Kingdom.     
               James Smith is primarily responsible for the day-to-day manage-
            ment of the International Fund. Mr. Smith is a Managing Director
            and the Chief Investment Officer of Blairlogie and is responsible
            for managing an investment team of six professionals who, in turn,
            specialize in selection of stocks within Europe, Asia, and the
            Americas, and in currency and derivatives. He previously served as
            a Senior Portfolio Manager at Murray Johnstone in Glasgow,
            Scotland, responsible for international investment management for
            North American clients, and at Schroder Investment Management in
            London. Mr. Smith received his bachelor's degree in Economics from
            London University and his MBA from Edinburgh University. He is an
            Associate of the Institute of Investment Management and Research.
               
               [It is anticipated that PIMCO Advisors will sell substantially
            all of its ownership interest in Blairlogie to Alleghany Asset
            Management, Inc. on or about March 31, 1999 (the "Blairlogie
            Transaction"). The Blairlogie Transaction is subject to a number
            of conditions. Subject to the approval of the shareholders of the
            International Fund,     

64   PIMCO Funds: Multi-Manager Series

<PAGE>
 
               
            PIMCO Advisors has determined to continue to retain Blairlogie as
            Portfolio Manager of the Fund subsequent to the Blairlogie Trans-
            action pursuant to a new portfolio management agreement between
            PIMCO Advisors and Blairlogie. This Prospectus will be supple-
            mented or revised if these events do not occur substantially in
            accordance with the schedule outlined above.]     
               
            Pacific Investment Management manages the Fixed Income Securities
            Segment of the Balanced Fund. Pacific Investment Management is an
            investment management firm organized as a general partnership. Pa-
            cific Investment Management has two partners: PIMCO Advisors as
            the supervisory partner, and PIMCO Management, Inc. as the manag-
            ing partner. Pacific Investment Management Company, the predeces-
            sor investment adviser to Pacific Investment Management, commenced
            operations in 1971. Pacific Investment Management had approxi-
            mately $158 billion of assets under management as of December 31,
            1998. Pacific Investment Management's address is 840 Newport Cen-
            ter Drive, Suite 300, Newport Beach, California 92660. Pacific In-
            vestment Management is registered as an investment adviser with
            the Securities and Exchange Commission and as a commodity trading
            adviser with the CFTC.     
               William H. Gross is responsible for the day-to-day management
            of the Fixed Income Securities Segment of the Balanced Fund. Mr.
            Gross is a founder and a Managing Director of Pacific Investment
            Management and has been associated with Pacific Investment Manage-
            ment or its predecessor for more than 28 years. He has extensive
            investment experience in both credit research and fixed income
            portfolio management. He received his bachelor's degree from Duke
            University and his MBA from UCLA Graduate School of Business. Mr.
            Gross is a Chartered Financial Analyst and a member of The Los An-
            geles Society of Financial Analysts.
               
            Parametric manages the Tax-Efficient Equity Fund. Parametric is an
            investment management firm organized as a general partnership.
            Parametric has two partners: PIMCO Advisors as the supervisory
            partner, and Parametric Management Inc. as the managing partner.
            Parametric Portfolio Associates, Inc., the predecessor investment
            adviser to Parametric, commenced operations in 1987. Accounts man-
            aged by Parametric had combined assets as of December 31, 1998 of
            approximately $3.4 billion. Parametric's address is 7310 Columbia
            Center, 701 Fifth Avenue, Seattle, Washington 98104-7090. Paramet-
            ric is registered as an investment adviser with the Securities and
            Exchange Commission and as a commodity trading adviser with the
            CFTC.     
               
               David Stein, Tom Seto and Cliff Quisenberry are primarily re-
            sponsible for the day-to-day management of the Tax-Efficient Eq-
            uity Fund. Mr. Stein is a Managing Director of Parametric and has
            been associated with Parametric since June of 1996. He also di-
            rects research and product development for Parametric. Mr. Stein
            graduated with bachelor's and master's degrees in Applied Mathe-
            matics from the University of Witwatersrand, South Africa, and re-
            ceived a Ph.D. in Applied Mathematics from Harvard University.
            Prior to joining Parametric, Mr. Stein served as the Director of
            Investment Research at GTE Investment Management, Director of Ac-
            tive Equity Strategies at the Vanguard Group, and Director of
            Quantitative Portfolio Management and Research at IBM. Mr. Seto is
            a Vice President of Parametric and has 7 years of experience in
            managing structured equity portfolios. Prior to joining Paramet-
            ric, he served as the Head of U.S. Equity Index Investments at
            Barclays Global Investors. Mr. Seto graduated from the University
            of Washington with a bachelor's degree in Electrical Engineering,
            and from the University of Chicago with an MBA in Finance. Mr.
            Quisenberry, a Vice President of Parametric, has 9 years' experi-
            ence as a portfolio manager and has been with Parametric since
            1994. He previously served as a Vice President and Portfolio Man-
            ager at Cutler & Co., and as a Security Analyst and Portfolio Man-
            ager at Fred Alger Management. Mr. Quisenberry graduated from Yale
            University with a bachelor's degree in Economics. He is a Chart-
            ered Financial Analyst.     
               
            Van Eck is an unaffiliated investment adviser that manages the
            Precious Metals Fund. Van Eck is a Delaware corporation which, to-
            gether with its affiliates, provides investment advisory services
            to other mutual funds and to private accounts. Van Eck is con-
            trolled by John C. van Eck who, along with members of his immedi-
            ate family, owns 100% of the stock of Van Eck. Accounts managed by
            Van Eck had combined assets as of December 31, 1998 of approxi-
            mately $1.1 billion. Van Eck's address is 99 Park Avenue, New
            York, NY 10001. Van Eck is registered as an investment adviser
            with the Securities and Exchange Commission.     
 
                                                 
                                              April   , 1999 Prospectus   65    
<PAGE>
 
               Henry J. Bingham, Executive Managing Director of Van Eck, has
            served as the portfolio manager responsible for the day-to-day
            management of the Precious Metals Fund since the Fund commenced
            operations.
 
            Registration as an investment adviser with the Securities and Ex-
            change Commission does not involve supervision by the Securities
            and Exchange Commission over investment advice, and registration
            with the CFTC as a commodity trading adviser does not involve su-
            pervision by the CFTC over commodities trading. The portfolio man-
            agement agreements are not exclusive, and Columbus Circle, Ca-
            dence, NFJ, Blairlogie, Pacific Investment Management, Parametric
            and Van Eck may provide, and currently are providing, investment
            management services to other clients, including other investment
            companies.
 
Fund
Administrator
            PIMCO Advisors also serves as administrator (the "Administrator")
            for the Funds' Class A, Class B and Class C shares pursuant to an
            administration agreement with the Trust. The Administrator pro-
            vides or procures administrative services for Class A, Class B and
            Class C shareholders of the Funds, which include clerical help and
            accounting, bookkeeping, internal audit services and certain other
            services required by the Funds, and preparation of reports to the
            Funds' shareholders and regulatory filings. The Administrator has
            retained Pacific Investment Management to provide such services as
            sub-administrator. The Administrator and/or the sub-administrator
            may also retain other affiliates to provide certain of these serv-
            ices. In addition, the Administrator, at its own expense, arranges
            for the provision of legal, audit, custody, transfer agency (in-
            cluding sub-transfer agency and other administrative services) and
            other services necessary for the ordinary operation of the Funds,
            and is responsible for the costs of registration of the Trust's
            shares and the printing of prospectuses and shareholder reports
            for current shareholders.
               The Funds (and not the Administrator) are responsible for the
            following expenses: (i) salaries and other compensation of any of
            the Trust's executive officers and employees who are not officers,
            directors, stockholders, or employees of PIMCO Advisors, Pacific
            Investment Management, or their subsidiaries or affiliates; (ii)
            taxes and governmental fees; (iii) brokerage fees and commissions
            and other portfolio transaction expenses; (iv) the costs of bor-
            rowing money, including interest expenses; (v) fees and expenses
            of the Trustees who are not "interested persons" of the Adviser,
            any Portfolio Manager, or the Trust, and any counsel retained ex-
            clusively for their benefit; (vi) extraordinary expenses, includ-
            ing costs of litigation and indemnification expenses; (vii) ex-
            penses which are capitalized in accordance with generally accepted
            accounting principles; and (viii) any expenses allocated or allo-
            cable to a specific class of shares, which include distribution
            and/or service fees payable with respect to Class A, Class B and
            Class C shares, and may include certain other expenses as permit-
            ted by the Trust's Multiple Class Plan adopted pursuant to Rule
            18f-3 under the 1940 Act, subject to review and approval by the
            Trustees.
 
Advisory
and
Administrative
Fees
            The Funds feature fixed advisory and administrative fees. For pro-
            viding or arranging for the provision of investment advisory serv-
            ices to the Funds as described above, PIMCO Advisors receives
            monthly fees from each Fund at an annual rate based on the average
            daily net assets of the Fund as follows:
 
 
<TABLE>
<CAPTION>
                                    Advisory
           Fund                     Fee Rate
           ---------------------------------
           <S>                      <C>
           Balanced, Equity
            Income, Value, Tax-
            Efficient Equity,
            Capital Appreciation
            and Mid-Cap Growth
            Funds                   .45%
           ---------------------------------
           Growth and Value 25
            Funds                   .50%
           ---------------------------------
           Target and Interna-
            tional Funds            .55%
           ---------------------------------
           Renaissance, Small-Cap
            Value and Precious
            Metals Funds            .60%
           ---------------------------------
           Opportunity and Innova-
            tion Funds              .65%
</TABLE>
 
 
66   PIMCO Funds: Multi-Manager Series

<PAGE>
 
 
               For providing or procuring administrative services to the Funds
            as described above, the Administrator receives monthly fees from
            each Fund at an annual rate based on the average daily net assets
            attributable in the aggregate to the Fund's Class A, Class B and
            Class C shares as follows:
 
 
<TABLE>
<CAPTION>
                                 Administrative
           Fund                  Fee Rate
              ------------------------------------------------------------
           <S>                   <C>
           Precious Metals Fund  .45% of first $2.5 billion
                                 .40% of amounts in excess of $2.5 billion
              ------------------------------------------------------------
           International Fund    .65% of first $2.5 billion
                                 .60% of amounts in excess of $2.5 billion
              ------------------------------------------------------------
           All Other Funds       .40% of first $2.5 billion
                                 .35% of amounts in excess of $2.5 billion
</TABLE>
 
               The investment advisory, administration and sub-administration
            agreements for the Funds may be terminated by the Trustees, or by
            PIMCO Advisors or Pacific Investment Management (as the case may
            be) on 60 days' written notice. In addition, these agreements may
            be terminated with regard to the Renaissance, Growth, Target, Op-
            portunity, International, Innovation and Precious Metals Funds by
            a majority of the Trustees that are not interested persons of the
            Trust, PIMCO Advisors, or Pacific Investment Management (as the
            case may be) on 60 days' written notice. Following their initial
            terms, the agreements will continue from year-to-year if approved
            by the Trustees.
               
               Pursuant to the portfolio management agreements between the Ad-
            viser and the Portfolio Managers listed below, PIMCO Advisors (and
            not the Funds or the Trust) pays each Portfolio Manager a fee
            based on a percentage of the average daily net assets of the noted
            Funds as follows: Columbus Circle--.38% for the Renaissance Fund;
            Cadence--.35% for the Capital Appreciation Fund, .35% for the Mid-
            Cap Growth Fund and .35% for the portion of the Common Stock Seg-
            ment of the Balanced Fund allocated to Cadence; NFJ--.35% for the
            Equity Income Fund, .35% for the Value Fund, .40% for the Value 25
            Fund, .50% for the Small-Cap Value Fund and .35% for the portion
            of the Common Stock Segment of the Balanced Fund allocated to NFJ;
            Blairlogie--.40% for the International Fund; Pacific Investment
            Management-- .25% for the Fixed Income Securities Segment of the
            Balanced Fund; Parametric--.35% for the Tax-Efficient Equity Fund;
            and Van Eck--.35% for the Precious Metals Fund. PIMCO Advisors
            does not retain a separate firm to serve as Portfolio Manager for
            the Growth, Target, Opportunity and Innovation Funds, and retains
            all of the advisory fees it earns from those Funds.     
 
Portfolio      
TransactionsThe Adviser or, pursuant to the portfolio management agreements, a
            Portfolio Manager, places orders for the purchase and sale of
            portfolio investments for a Fund's accounts with brokers or deal-
            ers selected by it in its discretion. In effecting purchases and
            sales of portfolio securities for the accounts of the Funds, the
            Adviser and the Portfolio Managers will seek the best price and
            execution of the Fund's orders. In doing so, a Fund may pay higher
            commission rates than the lowest available when the Adviser or
            Portfolio Manager believes it is reasonable to do so in light of
            the value of the brokerage and research services provided by the
            broker effecting the transaction. The Adviser and Portfolio Manag-
            ers also may consider sales of shares of the Trust as a factor in
            the selection of broker-dealers to execute portfolio transactions
            for the Trust.     
               
               Some securities considered for investment by the Funds may also
            be appropriate for other clients served by the Adviser or the
            Portfolio Managers. If a purchase or sale of securities consistent
            with the investment policies of a Fund and one or more of these
            clients is considered at or about the same time, transactions in
            such securities will be allocated among the Fund and clients in a
            manner deemed fair and reasonable by the Adviser or Portfolio Man-
            ager. Particularly when investing in less liquid or illiquid secu-
            rities of smaller capitalization companies, such allocation may
            take into account the asset size of a Fund in determining whether
            the allocation of an investment is suitable. As a result, larger
            Funds may become more concentrated in more liquid securities than
            smaller Funds or private accounts of     
 
   
                                              April   , 1999 Prospectus 67    
<PAGE>
 
               
            the Adviser or a Portfolio Manager pursuing a small capitalization
            investment strategy, which could adversely affect performance. The
            Adviser or a Portfolio Manager may aggregate orders for the Funds
            with simultaneous transactions entered into on behalf of its other
            clients so long as price and transaction expense are averaged ei-
            ther for the particular transaction or for that day.     
 
            Description of the Trust
 
Capitalization
            The Trust was organized as a Massachusetts business trust on Au-
            gust 24, 1990, and currently consists of twenty-eight portfolios
            that are operational, fifteen of which are described in this Pro-
            spectus. Other portfolios may be offered by means of a separate
            prospectus. The Board of Trustees may establish additional portfo-
            lios in the future. The capitalization of the Trust consists of an
            unlimited number of shares of beneficial interest. When issued,
            shares of the Trust are fully paid, non-assessable and freely
            transferable.
               Under Massachusetts law, shareholders could, under certain cir-
            cumstances, be held liable for the obligations of the Trust. How-
            ever, the Second Amended and Restated Agreement and Declaration of
            Trust (the "Declaration of Trust") of the Trust disclaims share-
            holder liability for acts or obligations of the Trust and requires
            that notice of such disclaimer be given in each agreement, obliga-
            tion or instrument entered into or executed by the Trust or the
            Trustees. The Declaration of Trust also provides for indemnifica-
            tion out of a Fund's property for all loss and expense of any
            shareholder of that Fund held liable on account of being or having
            been a shareholder. Thus, the risk of a shareholder incurring fi-
            nancial loss on account of shareholder liability is limited to
            circumstances in which such disclaimer is inoperative or the Fund
            of which he or she is or was a shareholder is unable to meet its
            obligations, and thus should be considered remote.
 
            In addition to Class A, Class B and Class C shares, certain Funds
Multiple    also offer Class D, Institutional Class and Administrative Class
Classesof   shares through separate prospectuses. See "Alternative Purchase
Shares      Arrangements." These other classes of shares of the Funds may have
            different sales charges and expense levels, which will affect per-
            formance accordingly. This Prospectus relates only to Class A,
            Class B and Class C shares of the Funds.
               Class A, Class B and Class C shares of each Fund represent in-
            terests in the assets of that Fund, and each class has identical
            dividend, liquidation and other rights and the same terms and con-
            ditions, except that expenses related to the distribution and
            shareholder servicing of Class A, Class B and Class C shares are
            borne solely by such class and each class may, at the Trustees'
            discretion, also pay a different share of other expenses, not in-
            cluding advisory or custodial fees or other expenses related to
            the management of the Trust's assets, if these expenses are actu-
            ally incurred in a different amount by that class, or if the class
            receives services of a different kind or to a different degree
            than the other classes. All other expenses are allocated to each
            class on the basis of the net asset value of that class in rela-
            tion to the net asset value of the particular Fund.
 
Voting      Each class of shares of each Fund has identical voting rights, ex-
            cept that each class of shares has exclusive voting rights on any
            matter submitted to shareholders that relates solely to that
            class, and has separate voting rights on any matter submitted to
            shareholders in which the interests of one class differ from the
            interests of any other class. Each class of shares has exclusive
            voting rights with respect to matters pertaining to any Distribu-
            tion and Servicing Plan or agreement applicable only to that
            class. These shares are entitled to vote at meetings of sharehold-
            ers. Matters submitted to shareholder vote must be approved by
            each Fund separately except (i) when required by the 1940 Act
            shares shall be voted together and (ii) when the Trustees have de-
            termined that the matter does not affect all Funds, then only
            shareholders of the Fund or Funds affected shall be entitled to
            vote on the matter. All classes of shares of a Fund will vote to-
            gether, except with respect to a Distribution and Servicing Plan
            or agreement applicable to a class of shares or when a class vote
            is required as specified above or otherwise by the 1940 Act.
            Shares are freely transferable, are
 
68   PIMCO Funds: Multi-Manager Series

<PAGE>
 
            entitled to dividends as declared by the Trustees and, in liquida-
            tion of the Trust, are entitled to receive the net assets of their
            Fund, but not of the other Funds. The Trust does not generally
            hold annual meetings of shareholders and will do so only when re-
            quired by law. Shareholders may remove Trustees from office by
            votes cast in person or by proxy at a meeting of shareholders or
            by written consent. Such a meeting will be called at the written
            request of the holders of 10% of the Trust's outstanding shares.
               
               Shares entitle their holders to one vote per share (with pro-
            portionate voting for fractional shares). As of March   , 1999,
            the following were shareholders of record of at least 25% of the
            outstanding voting securities of the indicated Fund: [Note: To be
            updated in a Post-Effective amendment filed prior to the effective
            date of this Amendment] PIMCO Advisors L.P. (Newport Beach, Cali-
            fornia), the Trust's investment adviser and administrator, with
            respect to the Tax-Efficient Equity and Value 25 Funds; and Mer-
            rill Lynch, Pierce, Fenner & Smith Inc. (Jacksonville, Florida)
            with respect to the Target Fund. To the extent a shareholder is
            also the beneficial owner of such shares, the shareholder may be
            deemed to control (as that term is defined in the 1940 Act) the
            Fund. As used in this Prospectus, the phrase "vote of a majority
            of the outstanding shares" of a Fund (or the Trust) means the vote
            of the lesser of: (1) 67% of the shares of the Fund (or the Trust)
            present at a meeting, if the holders of more than 50% of the out-
            standing shares are present in person or by proxy; or (2) more
            than 50% of the outstanding shares of the Fund (or the Trust).
                
            Mailings to Shareholders
 
            To reduce the volume of mail shareholders receive, it is antici-
            pated that only one copy of most Trust reports, such as the
            Trust's annual reports, will be mailed to a shareholder's house-
            hold (same surname, same address). A shareholder may call 1-800-
            426-0107 if additional shareholder reports are desired.
                                                         
                                                       April   , 1999   69    
                                       
<PAGE>
 
 
          ---------------------------------------------------------------------
PIMCO     INVESTMENT ADVISER AND ADMINISTRATOR
Funds:    PIMCO Advisors L.P., 800 Newport Center Drive, Newport Beach, CA
Multi-    92660
Manager   ---------------------------------------------------------------------
Series    PORTFOLIO MANAGERS
             
          PIMCO Equity Advisors Division of PIMCO Advisors L.P., Cadence Capi-
          tal Management, Columbus Circle Investors, NFJ Investment Group,
          Blairlogie Capital Management, Pacific Investment Management Compa-
          ny, Parametric Portfolio Associates, Van Eck Associates Corporation
              
          ---------------------------------------------------------------------
          DISTRIBUTOR
          PIMCO Funds Distributors LLC, 2187 Atlantic Street, Stamford, CT
          06902
          ---------------------------------------------------------------------
          CUSTODIAN
          Investors Fiduciary Trust Company, 801 Pennsylvania, Kansas City, MO
          64105
          ---------------------------------------------------------------------
          SHAREHOLDER SERVICING AGENT AND TRANSFER AGENT
             
          First Data Investor Services Group, Inc., P.O. Box 9688, Providence,
          RI 02940     
          ---------------------------------------------------------------------
          INDEPENDENT ACCOUNTANTS
          PricewaterhouseCoopers LLP, 1055 Broadway, Kansas City, MO 64105
          ---------------------------------------------------------------------
          LEGAL COUNSEL
          Ropes & Gray, One International Place, Boston, MA 02110
          ---------------------------------------------------------------------
          For further information about the PIMCO Funds, call 1-800-426-0107
          or visit our Web site at www.pimcofunds.com.
<PAGE>
 
                           PIMCO Funds is on the Web

                      w w w . p i m c o f u n d s . c o m

A Partial List of What's Available:

Daily Manager Commentary

Fund Manager Bios

Current and Historical Fund Performance

Lipper Rankings

Morningstar Ratings

Listing of Fund Portfolio Holdings

Risk Analysis

Daily Share Prices

Downloadable Literature Section

On-Line Literature Requests

Resources for Investment Professionals

PIMCO Funds Distributors LLC is pleased to announce the launch of its Web site. 
You and your financial advisor now have around-the-clock access to the most 
timely and comprehensive information available on all of the PIMCO Funds. In 
addition, the site includes daily commentary from our fund managers, with 
insights on the economy and other factors affecting the stock and bond markets.

[Graphic of Web page appears here]

You'll find the site to be informative and easy-to-use. It's divided into three 
main sections: Investment Insight, Fund Information and Resources. And there are
several functions that can help you navigate your way around the site. We can 
be found on the Worldwide Web at wwww.pimcofunds.com.

[Graphic of Web page appears here]

Investment Insight
The Investment Insight section provides an overview of six of the investment 
management firms under the PIMCO Advisors L.P. umbrella. You'll find an 
explanation of each firm's investment process, biographies of the investment 
team, manager updates and more.

[Graphic of Web page appears here]

Fund Information
In the Fund Information section you'll access detailed profiles of all the PIMCO
Funds, including current and historical performance, Lipper rankings and 
Morningstar ratings. Additionally, we provide a summary of a fund's 
portfolio--complete with risk analysis data. You can also obtain daily fund 
share prices. Please read the relevant prospectus carefully before you invest in
any PIMCO Fund.

[Graphic of Web page appears here]

Resources
Our Resources section features a variety of useful information, including:

[_] an on-line document library with applications and forms that you can view 
and print

[_] a literature-by-mail "catalog," so you can order free materials

[_] information about our convenient shareholder services, such as Auto-Invest, 
Fund Link and our 24-Hour Telephone Information System

[_] a listing of the features and benefits of the retirement plans offered by 
PIMCO Funds

[_] a feature--"My Portfolio"--which enables you to track your portfolio 
(including PIMCO Funds, other funds, stocks, futures and options), get detailed 
stock quotes and more.

Questions?
We're sure you'll find the PIMCO Funds Web site to be an invaluable tool. If you
have any questions about the site, call us at 1-800-426-0107. Or, use the e-mail
feature of the site to contact us.


                                                                PIMCO
                                                                FUNDS
<PAGE>
 
    
                       PIMCO FUNDS: MULTI-MANAGER SERIES
    
                       Supplement Dated April __, 1999
                                     to the
                        Prospectus for Class A, Class B
                   and Class C Shares Dated April __, 1999     

                             Disclosure relating to
                     PIMCO International Developed Fund and
                          PIMCO Emerging Markets Fund
    
- --------------------------------------------------------------------------------
This document supplements the PIMCO Funds: Multi-Manager Series (the "Trust")
Prospectus for Class A, Class B and Class C Shares dated April __, 1999
(the "Retail Prospectus").     
- --------------------------------------------------------------------------------


     In addition to the diversified investment portfolios described in the
Retail Prospectus, the Trust also offers Class A and Class C Shares of PIMCO
International Developed Fund and PIMCO Emerging Markets Fund (the "Funds").
Existing Class A and Class C shareholders of the Funds and participants in
certain qualified benefit plans that own Class A or Class C shares of the Funds
as of April , 1999 may purchase additional shares. Otherwise, shares of the
Funds are not available for investment or exchanges. See "Purchase, Redemption
and Exchange Information" below.


1.   Schedule of Fees (applicable to both Funds).
<TABLE>
<CAPTION>
 
Shareholder Transaction Expenses:
                                                              Class A     Class C
                                                               Shares     Shares
                                                              --------    -------
<S>                                                           <C>         <C>
Maximum initial sales charge imposed on purchases                5.50%    None
   (as a percentage of offering price at time of purchase)              
                                                                        
Maximum sales charge imposed on reinvested dividends          None        None
   (as a percentage of offering price at time of purchase)              
                                                                        
Maximum contingent deferred sales charge ("CDSC")             1%/(1)/     1%/(2)/
   (as a percentage of original purchase price)
 
Exchange Fee                                                  None        None
- -----------------------------
</TABLE>

1. Imposed only in certain circumstances where Class A shares are purchased
without a front-end sales charge at the time of purchase.  See "Alternative
Purchase Arrangements" in the Retail Prospectus.

2. The CDSC on Class C shares is imposed only on shares redeemed in the first
year.


    
<PAGE>
 
<TABLE>
<CAPTION>

                                                              Example: You would pay the
Class A Shares                                                following expenses on a     Example:  You would pay
                            Annual Fund                       $1,000 investment assuming  the following expenses on
                            Operating Expenses                (1) 5% annual return and    a $1,000 investment
                            (As a percentage of average       (2) redemption at the end   assuming (1) 5% annual
                            net assets):                      of each time period:        return and (2) no redemption:
- -----------------------------------------------------------------------------------------------------------------------
                                                    Total
                                   Admini-          Fund
                         Advisory  strative 12b-1   Operating  1     3      5      10      1     3      5      10
Fund                       Fees     Fees(1) Fees(2) Expenses  Year  Years  Years   Years  Year  Years  Years  Years
- -------------------------------------------------------------------------------------------------------------------
<S>                      <C>       <C>      <C>     <C>       <C>   <C>    <C>    <C>     <C>   <C>    <C>    <C>
International Developed      .60%    .65%    .25%    1.50%    $69   $100   $132   $224    $69   $100   $132   $224

Emerging Markets             .85     .65     .25     1.75       72    107    145   250      72    107    145    250
- -------------------------------------------------------------------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
                                                              Example: You would pay the
                                                              following expenses on a     Example:  You would pay
Class C Shares              Annual Fund                       $1,000 investment assuming  the following expenses on
                            Operating Expenses                (1) 5% annual return and    a $1,000 investment
                            (As a percentage of average       (2) redemption at the end   assuming (1) 5% annual
                            net assets):                      of each time period:        return and (2) no redemption:
- ------------------------------------------------------------------------------------------------------------------------
                                                    Total
                                   Admini-          Fund
                         Advisory  strative 12b-1   Operating  1     3      5      10      1     3      5      10
Fund                       Fees     Fees(1) Fees(2) Expenses  Year  Years  Years   Years  Year  Years  Years  Years
- ------------------------------------------------------------------------------------------------------------------------
<S>                      <C>       <C>      <C>     <C>       <C>   <C>    <C>    <C>     <C>   <C>    <C>    <C>
International Developed      .60%    .65%   1.00%   2.25%     $33   $70    $120   $258    $23   $70    $120   $258
                                                                  
Emerging Markets             .85     .65     1.00   2.50       35    78     133    284     25     78    133    284
- ------------------------------------------------------------------------------------------------------------------------

</TABLE>


1. The Administrative Fees for each Fund are subject to reduction to the extent
that the average net assets attributable in the aggregate to the Fund's Class A,
Class B and Class C shares exceed $2.5 billion. See "Management of the Trust --
Advisory and Administrative Fees" below.

2. 12b-1 fees which are equal to .25% represent servicing fees which are paid
annually to the Distributor and repaid to participating brokers, certain banks
and other financial intermediaries.  12b-1 fees which exceed .25% represent
aggregate distribution and servicing fees.  See "Distributor and Distribution
and Servicing Plans" in the Retail Prospectus.
 
The purpose of the foregoing tables is to assist investors in understanding the
various costs and expenses of the Trust that are borne directly or indirectly by
Class A and Class C shareholders of the Funds. The Examples for Class A shares
assume payment of the current maximum applicable sales load. Due to the 12b-1
distribution fee imposed on Class C shares, a Class C shareholder of a Fund may,
depending on the length of time the shares are held, pay more than the economic
equivalent of the maximum front-end sales charges permitted by relevant rules of
the National Association of Securities Dealers, Inc.

NOTE: THE FIGURES SHOWN IN THE EXAMPLES ARE ENTIRELY HYPOTHETICAL. THEY ARE NOT
REPRESENTATIONS OF PAST OR FUTURE PERFORMANCE OR EXPENSES; ACTUAL PERFORMANCE
AND/OR EXPENSES MAY BE MORE OR LESS THAN SHOWN.
    
                                      -2-
<PAGE>
 
2.   Financial Highlights.

     The following financial highlights present certain information and ratios
as well as performance information for the Funds.  The information provided
below is included in the June 30, 1998 PIMCO Funds Annual Report (relating to
Class A, B and C shares) and has been audited by PricewaterhouseCoopers LLP,
independent accountants, whose report thereon is also included in such Annual
Report.  The Annual Report is incorporated by reference in the Statement of
Additional Information and may be obtained without charge from the Distributor.
Financial Statements and related notes are also incorporated by reference in the
Statement of Additional Information.

<TABLE>
<CAPTION>
                                                                             Total                     Dividends   
                             Net Asset                     Net Realized/     Income       Dividends    in Excess   
                             Value        Net              Unrealized Gain   From         From Net     of Net    
Selected Per Share Data      Beginning    Investment       (Loss) on         Investment   Investment   Investment  
for the Period Ended:        of Period    Income (Loss)    Investments       Operations   Income       Income    
- --------------------------------------------------------------------------------------------------------------------
International Developed Fund                                                                                        
- --------------------------------------------------------------------------------------------------------------------
<S>                          <C>        <C>                <C>               <C>          <C>          <C>          
Class A                                                                                                             
   06/30/98                     $13.08    $  0.18 (a)        $  1.68 (a)       $   1.86     $(0.10)        $0.00  
   01/20/97 - 06/30/97           11.71       0.09 (a)           1.28 (a)           1.37       0.00          0.00  

Class C                                                                                                           
   06/30/98                      13.06       0.02 (a)           1.71 (a)           1.73      (0.06)       0.00  
   01/20/97 - 06/30/97           11.71       0.06 (a)           1.29 (a)           1.35       0.00        0.00  

Emerging Markets Fund                                                                                               

Class A                                                                                                             
   06/30/98                     $13.94  $    0.03 (a)     $    (3.85)(a)       $  (3.82)    $ 0.00       $0.00  
   01/20/97 - 06/30/97           12.82       0.09 (a)           1.03 (a)           1.12       0.00        0.00  

Class C                                                                                                             
   06/30/98                      13.89      (0.06)(a)          (3.81)(a)          (3.87)      0.00        0.00  
   01/20/97 - 06/30/97           12.82       0.04 (a)           1.03 (a)           1.07       0.00        0.00  

<CAPTION>

                            Dributions   Distributions
                            From Net     in Excess
                            Realized     of Net          Distributions
Selected Per Share Data     Capital      Realized        from
for the Period Ended:       Gains        Capital Gains   Equalization
- ---------------------------------------------------------------------
International Developed Fund                       
- ---------------------------------------------------------------------
<S>                                     <C>             <C>
Class A                     
      06/30/98                 $(0.58)          $0.00           $0.00
      01/20/97 - 06/30/97        0.00            0.00            0.00

Class C                     
   06/30/98                     (0.58)           0.00            0.00
   01/20/97 - 06/30/97           0.00            0.00            0.00

Emerging Markets Fund       

Class A                     
   06/30/98                    $ 0.00           $0.00           $0.00
   01/20/97 - 06/30/97           0.00            0.00            0.00
             
Class C                     
   06/30/98                      0.00            0.00            0.00
   01/20/97 - 06/30/97           0.00            0.00            0.00
 
</TABLE>

<TABLE>
<CAPTION>                                                                                                   Ratio of Net
                                                                                                Ratio of    Investment
                            Tax Basis                      Net Asset             Net Assets      Expenses    Income (Loss) Portfolio
Selected Per Share Data     Return of     Total            Value End    Total    End of          to Average  to Average    Turnover
for the Period Ended:       Capital       Distributions    of Period    Return   Period (000s)   Net Assets  Net Assets    Rate
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                       <C>            <C>              <C>           <C>      <C>            <C>         <C>           <C>
International Developed Fund

Class A
    06/30/98              $   0.00        $    (0.68)      $   14.26     15.49 %  $   1,061         1.57%        1.38%       60%
    01/20/97 - 06/30/97       0.00              0.00           13.08     11.70          318         1.54*        1.74*       77


Class C
    06/30/98                  0.00             (0.64)          14.15     14.38        6,363         2.25         0.19        60
    01/20/97 - 06/30/97       0.00              0.00           13.06     11.53        2,526         2.28*        1.07*       77


Emerging Markets Fund

Class A
    06/30/98               $  0.00        $     0.00        $  10.12    (27.40)%  $     426         1.78%        0.25 %      52%
    01/20/97 - 06/30/97       0.00              0.00           13.94      8.74          214         1.89*        1.52*       74


Class C
    06/30/98                  0.00              0.00           10.02    (27.86)       1,169         2.54        (0.54)       52
    01/20/97 - 06/30/97       0.00              0.00           13.89      8.35        1,833         2.63*        0.66*       74

</TABLE>

*Annualized
(a) Per share amounts based upon average number of shares outstanding during
    the period.

    
                                      -3-
<PAGE>
    
3.  Investment Objectives and Policies.

  The investment objective and general investment policies of the Funds are
described below. There can be no assurance that the investment objective of
either Fund will be achieved. Because the market value of the Funds' investments
will change, the net asset value per share of the Funds also will vary.  The
investment objective of each of the International Developed and Emerging Markets
Funds is fundamental and may not be changed without shareholder approval by vote
of a majority of the outstanding shares of the Fund.

INTERNATIONAL DEVELOPED FUND seeks long-term growth of capital.  The Fund
invests primarily in a diversified portfolio of international equity securities.
The Morgan Stanley Capital International EAFE (Europe, Australasia, Far East)
Index ("EAFE Index") is used as a basis for choosing the countries in which the
Fund invests.  However, the Fund is not limited to the countries and weightings
of the EAFE Index.  Under normal market conditions, the Fund will invest no more
than 35% of its assets in securities issued by companies located in countries
that the Portfolio Manager determines, on the basis of market capitalization,
liquidity, and other considerations, to have underdeveloped securities markets.
The Portfolio Manager applies two levels of screening in selecting investments
for the Fund. First, an active country selection model analyzes world markets
and assigns a relative value ranking, or "favorability weighting," to each
country in the relevant country universe to determine markets which are
relatively undervalued.  Second, at the stock selection level, quality analysis
and value analysis are applied to each security, assessing variables such as
balance sheet strength and earnings growth (quality factors) and performance
relative to the industry, price to earnings ratios, and price to book ratios
(value factors).  This two-level screening method identifies undervalued
securities for purchase and also provides a sell discipline for fully valued
securities. In selecting securities, the Portfolio Manager considers, to the
extent practicable and on the basis of information available to it for research,
a company's environmental business practices.

  For purposes of allocating the Fund's investments, a company is considered to
be located in the country in which it is domiciled, in which it is primarily
traded, from which it derives a significant portion of its revenues, or in which
a significant portion of its goods or services are produced.

  Most of the international equity securities in which the Fund invests will be
traded in foreign currencies.  The Fund may engage in foreign currency
transactions to protect itself against fluctuations in currency exchange rates
in relation to the U.S. dollar or to the weighting of a particular foreign
currency on the EAFE Index.  Such foreign currency transactions may include
forward foreign currency contracts, foreign exchange futures contracts, and
options thereon, currency exchange transactions on a spot (i.e., cash) basis,
and put and call options on foreign currencies.  Up to 10% of the Fund's assets
may be invested in the securities of other investment companies.  The Fund may
sell (write) call and put options.  The Fund may utilize stock index futures
contracts and options thereon for hedging purposes and also for investment
purposes.   For instance, the Fund may invest in stock index futures contracts
and related options as an alternative to purchasing individual stocks to adjust
its exposure to a particular foreign market.  See "Characteristics and Risks of
Securities and Investment Techniques--Derivative Instruments--Index Futures" in
the Retail Prospectus.  The Fund may also engage in equity index swap
transactions.

    
                                      -4-
<PAGE>
    
  Investing in the securities of foreign issuers involves special risks and
considerations not typically associated with investing in U.S. companies.  For a
discussion of such risks, see "Characteristics and Risks of Securities and
Investment Techniques--Foreign Securities" in the Retail Prospectus.
    
  Currently, the Portfolio Manager for the International Developed Fund is
Blairlogie Capital Management ("Blairlogie").  It is anticipated that the
International Developed Fund will reorganize as a series of another mutual fund
family on or about March 31, 1999 and thereafter would not be offered as a
series of the Trust.  Please see the Note under "Management of the Trust" below
for details.     

EMERGING MARKETS FUND seeks long-term growth of capital.  The Fund invests
primarily in common stocks of companies located in countries identified as
emerging market countries.  The Morgan Stanley Capital International Emerging
Markets Free Index ("MSCI Free Index") and the International Finance Corporation
Emerging Markets Index ("IFC Index") are used as the bases for choosing the
countries in which the Fund invests.  However, the Fund is not limited to the
countries and weightings of these indexes.  The Portfolio Manager applies two
levels of screening in selecting investments for the Fund. First, an active
country selection model analyzes world markets and assigns a relative value
ranking, or "favorability weighting," to each country in the relevant country
universe to determine markets which are relatively undervalued.  Second, at the
stock selection level, quality analysis and value analysis are applied to each
security, assessing variables such as balance sheet strength and earnings growth
(quality factors), and performance relative to the industry, price to earnings
ratios, and price to book ratios (value factors).  This two-level screening
method identifies undervalued securities for purchase as well as provides a sell
discipline for fully valued securities.  In selecting securities, the Portfolio
Manager considers, to the extent practicable and on the basis of information
available to it for research, a company's environmental business practices.

  For purposes of implementing its investment objective, the Fund invests
primarily in some or all of the following emerging market countries (this list
is not exclusive):

Argentina          Greece        Jordan        Poland        Sri Lanka
Brazil             Hong Kong     Malaysia      Portugal      Taiwan
Chile              Hungary       Mexico        Romania       Thailand
China              India         Pakistan      Russia        Turkey
Colombia           Indonesia     Peru          South Africa  Venezuela
Czech Republic     Israel        Philippines   South Korea   Zimbabwe

     For purposes of allocating the Fund's investments, a company is considered
to be located in the country in which it is domiciled, in which it is primarily
traded, from which it derives a significant portion of its revenues, or in which
a significant portion of its goods or services are produced.

     Most of the foreign securities in which the Fund invests will be
denominated in foreign currencies. The Fund may engage in foreign currency
transactions to protect itself against fluctuations in currency exchange rates
in relation to the U.S. dollar or to the weighting of a particular foreign
currency on the MSCI Free Index or the IFC Index.  Such foreign currency
transactions may include forward foreign currency contracts, foreign exchange
futures contracts, and options thereon, currency

    
                                      -5-
<PAGE>
    
exchange transactions on a spot (i.e., cash) basis, and put and call options on
foreign currencies. Up to 10% of the Fund's assets may be invested in the
securities of other investment companies. The Fund may sell (write) call and put
options. The Fund may utilize stock index futures contracts and options thereon
for hedging purposes and also for investment purposes. For instance, the Fund
may invest in stock index futures contracts and related options as an
alternative to purchasing individual stocks to adjust its exposure to a
particular foreign market. See "Characteristics and Risks of Securities and
Investment Techniques--Derivative Instruments--Index Futures" in the Retail
Prospectus. The Fund may also engage in equity index swap transactions.

     Investing in the securities of foreign issuers, and particularly emerging
market issuers, involves special risks and considerations not typically
associated with investing in U.S. companies.  For a discussion of such risks,
see "Characteristics and Risks of Securities and Investment Techniques--Foreign
Securities" in the Retail Prospectus.
    
     Currently, the Portfolio Manager for the Emerging Markets Fund is
Blairlogie.  It is anticipated that the Emerging Markets Fund will reorganize as
a series of another mutual fund family on or about March 31, 1999 and
thereafter would not be offered as a series of the Trust.  Please see the Note
under "Management of the Trust" below for details.     

     Stock Funds.  The International Developed and Emerging Markets Funds are
each "Stock Funds" as described in the Retail Prospectus.  Each Fund will invest
primarily (normally at least 65% of its assets) in common stock.  Each Fund may
maintain a portion of its assets, which will usually not exceed 10%, in U.S.
Government securities, high quality debt securities (whose maturity or remaining
maturity will not exceed five years), money market obligations, and in cash to
provide for payment of the Fund's expenses and to meet redemption requests.  It
is the policy of the Funds to be as fully invested in common stocks as
practicable at all times. This policy precludes the Funds from investing in debt
securities as a defensive investment posture (although the Funds may invest in
such securities to provide for payment of expenses and to meet redemption
requests). Accordingly, investors in the Funds bear the risk of general declines
in stock prices and the risk that a Fund's exposure to such declines cannot be
lessened by investment in debt securities. The Funds may also invest in
convertible securities, preferred stocks, and warrants, subject to certain
limitations.

4.   Characteristics and Risks of Securities and Investment Techniques.

     The Funds may invest in the securities and utilize the investment
techniques described under the following sub-headings of "Characteristics and
Risks of Securities and Investment Techniques" in the Retail Prospectus and are
subject to the attendant risks described:  "Investment in Companies with Small
and Medium Market Capitalizations," "Foreign Securities," "Foreign Currency
Transactions," "Money Market Instruments," "Convertible Securities," "Derivative
Instruments" (including "Options on Securities, Securities Indexes, and
Currencies," "Swap Agreement" (for the Emerging Markets Fund only), "Futures
Contracts and Options on Futures Contracts" and "Index Futures"), "Loans of
Portfolio Securities," "Short Sales," "When-Issued, Delayed Delivery and Forward
Commitment Transactions," "Repurchase Agreements," "Reverse Repurchase
Agreements and Other Borrowings," "Illiquid Securities," and "Investment in
Investment Companies."  The Emerging Markets Fund may enter into equity index
swap agreements for purposes of gaining exposure to the stocks making up an
index of securities without actually purchasing those stocks.  Each Fund is
subject to the risks described under "Service Systems - Year 2000 Problem" in
the Retail Prospectus.

    

                                      -6-
<PAGE>
    
     The Emerging Markets Fund is particularly sensitive to the risks associated
with investing in the securities of issuers based in "emerging market" countries
as described under "Foreign Securities" in the Retail Prospectus.  The Emerging
Markets Fund is also subject to the risks described under "Foreign Securities -
Special Risks of Investing in Russian and Other Eastern European Securities" in
the Retail Prospectus.

     The annual portfolio turnover rates for the Funds were as follows for
fiscal 1998 and 1997, respectively: International Developed Fund - 60% and 77%;
Emerging Markets Fund - 52% and 74%.

5.   Purchase, Redemption and Exchange Information.

     Please see "How to Buy Shares," "Alternative Purchase Arrangements,"
"Exchange Privilege" and "How to Redeem" in the Retail Prospectus for
information on purchase, redemption and exchange information for Class A and
Class C shares of the Funds.
    
     Class A, B and C shares of the International Developed and Emerging Markets
Funds are not available for purchase or exchange by new investors. As of January
11, 1999, Class B shares are also not available for additional purchases or
exchanges by existing Class B shareholders. Existing Class A and C shareholders
of the Funds may purchase additional shares of the Funds. Also, participants in
certain self-directed qualified benefit plans that owned Class A or Class C
shares of a Fund as of April __, 1999 for any single plan participant will be
eligible to direct the purchase of the Fund's Class A or Class C shares by their
plan account for so long as the plan continues to own Class A or C shares of
the Fund for any plan participant. It is anticipated that the Funds will
reorganize as series of another mutual fund family on or about March 31, 1999.
Thereafter, shares of the Funds would not be available to any investor for
purchase from the Trust or for exchanges involving other PIMCO Funds. Please see
the Note under "Management of the Trust" below for details.
     

6.   Management of the Trust.

     PIMCO Advisors L.P. ("PIMCO Advisors" or the "Adviser") serves as
investment adviser and administrator to the Funds.  Please see "Management of
the Trust - Investment Adviser; and Fund Administrator" in the Retail Prospectus
for a description of PIMCO Advisors.

     Blairlogie Capital Management ("Blairlogie") serves as the Portfolio
Manager of the Funds and James Smith of Blairlogie is primarily responsible for
the day-to-day management of each Fund. Please see "Management of the Trust -
Portfolio Managers - Blairlogie" in the Retail Prospectus for a description of
Blairlogie and biographical information about Mr. Smith.
    
Note: It is anticipated that PIMCO Advisors will sell substantially all of its
ownership interest in Blairlogie to Alleghany Asset Management, Inc. on or
about March 31, 1999 (the "Blairlogie Transaction").  The Blairlogie
Transaction is subject to a number of conditions, including approval by the
shareholders of the Emerging Markets and International Developed Funds.  In
connection with the anticipated Blairlogie Transaction, it is proposed that the
Emerging Markets and International Developed Fund will transfer all of their
assets and liabilities to newly formed series of the Alleghany Funds to be
managed by Blairlogie (the proposed transactions are referred to as
"Reorganizations"). The proposed Reorganizations are subject to a number of
conditions, including approval by the Trust's Board of Trustees and the
shareholders of the Emerging Markets and International Developed Funds. The
Retail Prospectus will be supplemented or revised if any of these events
involving Blairlogie and the Funds do not occur substantially in accordance with
the schedule outlined above.     
    
                                      -7-
<PAGE>
    
     Advisory and Administrative Fees
     --------------------------------

     The Funds features fixed advisory and administrative fees.  For providing
or arranging for the provision of investment advisory services to the Funds,
PIMCO Advisors receives monthly Advisory Fees from the International Developed
Fund at the annual rate of 0.60%, and from the Emerging Markets Fund at the
annual rate of 0.85%, each based on the average daily net assets of the relevant
Fund.  Pursuant to the portfolio management agreement between PIMCO Advisors and
Blairlogie, PIMCO Advisors (and not the Funds or the Trust) pays Blairlogie fees
at the annual rate of 0.50% based on the average daily net assets of the
International Developed Fund and 0.75% based on the average daily net assets of
the Emerging Markets Fund.

     For providing or procuring administrative services for the Funds, PIMCO
Advisors (in its capacity as Administrator) receives monthly Administrative Fees
from each Fund at the following annual rate based on the average daily net
assets attributable in the aggregate to each Fund's Class A, Class B and Class C
Shares:  0.65% of the first $2.5 billion and 0.60% of amounts in excess of $2.5
billion.

7.   Distributions.

     Net investment income from interest and dividends, if any, will be declared
and paid at least annually to shareholders of record by each of the
International Developed and Emerging Markets Funds.

    

                                      -8-
<PAGE>
 
                       PIMCO FUNDS: MULTI-MANAGER SERIES
    
                         Supplement Dated ______, 1999
                                    to the
                        Prospectus for Class A, Class B
                    and Class C Shares dated April  __, 1999     

                            Disclosure relating to:

                            PIMCO HARD ASSETS FUND
    
- --------------------------------------------------------------------------------
Note: This document supplements the PIMCO Funds: Multi-Manager Series (the
- ----                                                                      
"Trust") Prospectus for Class A, Class B and Class C Shares dated April __,
1999 (the "Retail Prospectus") which is included in Part A of this Registration
Statement.
- --------------------------------------------------------------------------------
     
    
     The Trust intends to offer Class A, Class B and Class C Shares of PIMCO
Hard Assets Fund (the "Fund").      

1. DATE OF THE PROSPECTUS.
    
     The date of the Prospectus is hereby amended to ______, 1999.
     
2.   STATEMENT OF ADDITIONAL INFORMATION.
    
     The Trust's Statement of Additional Information, dated April __, 1999, as
amended or supplemented from time to time, is available free of charge by
writing to PIMCO Funds Distributors LLC (the "Distributor"), 2187 Atlantic
Street, Stamford, Connecticut, 06902, or by telephoning 800-426-0107. The
Statement of Additional Information, which contains more detailed information
about the Trust, has been filed with the Securities and Exchange Commission and
is incorporated by reference into the Retail Prospectus.
     
    
3.   SCHEDULE OF FEES      

Shareholder Transaction Expenses:
- ---------------------------------                           

<TABLE> 
<CAPTION> 
                                                              Class A   Class B  Class C
                                                              Shares    Shares   Shares
                                                              --------  -------  -------
<S>                                                           <C>       <C>      <C>
Maximum initial sales charge imposed on purchases                5.50%  None     None
   (as a percentage of offering price at time of purchase)
 
Maximum sales charge imposed on reinvested dividends             None   None     None
   (as a percentage of offering price at time of purchase)
 
Maximum contingent deferred sales charge ("CDSC")             1%/(1)/   5%/(2)/  1%/(3)/
   (as a percentage of original purchase price)
 
Exchange Fee                                                     None   None     None
</TABLE> 

_____________________________
(1) Imposed only in certain circumstances where Class A shares are purchased
without a front-end sales charge at the time of purchase.  See "Alternative
Purchase Arrangements" in the Retail Prospectus.

(2) The maximum CDSC is imposed on shares redeemed in the first year. For shares
held longer than one year, the CDSC declines according to the schedule set forth
under "Alternative Purchase Arrangements -- Deferred Sales Charge Alternative --
Class B Shares" in the Retail Prospectus.

(3) The CDSC on Class C shares is imposed only on shares redeemed in the first
year.
<PAGE>
 
<TABLE> 
<CAPTION> 
                                                                EXAMPLE: You would pay the         
                                                                following expenses on a            EXAMPLE: You would pay the    
                                                                $1,000 investment assuming         following expenses on a 
CLASS A SHARES    ANNUAL FUND                                   (1) 5% annual return and (2)       $1,000 investment assuming 
                  OPERATING EXPENSES                            redemption at the end of each      (1) 5% annual return and (2)   
                  (As a percentage of average net assets):      time period:                       no redemption:                 
- ------------------------------------------------------------------------------------------------------------------------------------
<S>               <C>                                           <C>                                <C> 
                                                     TOTAL                                                             
                                ADMINI-              FUND                                                              
                    ADVISORY    STRATIVE    12B-1    OPERATING      1      3      5     10          1        3      5     10  
FUND                  FEES       FEES/1/   FEES/2/   EXPENSES      YEAR  YEARS  YEARS  YEARS       YEAR    YEARS  YEARS  YEARS 
- ------------------------------------------------------------------------------------------------------------------------------------
Hard Assets            .60         .40      .25        1.25          67     92    120    198         67      92    120    198 
- ----------------------------------------------------------------------------------------------------------------------------------- 
</TABLE> 
 
<TABLE> 
<CAPTION> 
                                                                     EXAMPLE: You would pay the       
                                                                     following expenses on a          EXAMPLE: You would pay the 
                                                                     $1,000 investment assuming       following expenses on a    
CLASS B SHARES         ANNUAL FUND                                   (1) 5% annual return and (2)     $1,000 investment assuming
                       OPERATING EXPENSES                            redemption at the end of each    (1) 5% annual return and (2)
                       (As a percentage of average net assets):      time period:                     no redemption:
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                    <C>                                           <C>                              <C> 
                                                          TOTAL
                                     ADMINI-              FUND
FUND                    ADVISORY    STRATIVE     12B-1    OPERATING      1      3      5     10       1       3       5     10   
                          FEES       FEES/1/    FEES/2/   EXPENSES      YEAR  YEARS  YEARS  YEARS    YEAR   YEARS   YEARS  YEARS 
- ----------------------------------------------------------------------------------------------------------------------------------- 
Hard Assets                  .60       .40       1.00       2.00          70    93    128    204       20     63      108    204  
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE> 

<TABLE> 
<CAPTION> 
                                                                     EXAMPLE: You would pay the       
                                                                     following expenses on a          EXAMPLE: You would pay the 
                                                                     $1,000 investment assuming       following expenses on a    
CLASS C SHARES         ANNUAL FUND                                   (1) 5% annual return and (2)     $1,000 investment assuming
                       OPERATING EXPENSES                            redemption at the end of each    (1) 5% annual return and (2)
                       (As a percentage of average net assets):      time period:                     no redemption:
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                    <C>                                           <C>                              <C> 
                                                          TOTAL
                                     ADMINI-              FUND
FUND                    ADVISORY    STRATIVE     12B-1    OPERATING      1      3      5     10       1       3       5     10   
                          FEES       FEES/1/    FEES/2/   EXPENSES      YEAR  YEARS  YEARS  YEARS    YEAR   YEARS   YEARS  YEARS 
- ----------------------------------------------------------------------------------------------------------------------------------- 
Hard Assets               .60         .40        1.00       2.00         30     63     108    233      20     63     108    233 
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE> 

1. The Administrative Fees for the Fund are subject to reduction to the extent
that the average net assets attributable in the aggregate to the Fund's Class A,
Class B and Class C shares exceed $2.5 billion. See "Management of the Trust --
Advisory and Administrative Fees" in the Retail Prospectus. 

2. 12b-1 fees equal to .25% represent servicing fees which are paid annually to
the Distributor and repaid to participating brokers, certain banks and other
financial intermediaries.  12b-1 fees which exceed .25% represent aggregate
distribution and servicing fees.  See "Distributor and Distribution and
Servicing Plans" in the Retail Prospectus.

The purpose of the foregoing tables is to assist investors in understanding the
various costs and expenses of the Trust that are borne directly or indirectly by
Class A, Class B and Class C shareholders of the Fund.  The Examples for Class
A shares assume payment of the current maximum applicable  

                                      -2-
<PAGE>
 
sales load. Due to the 12b-1 distribution fee imposed on Class B and Class C
shares, a Class B or Class C shareholder of the Fund may, depending on the
length of time the shares are held, pay more than the economic equivalent of the
maximum front-end sales charges permitted by relevant rules of the National
Association of Securities Dealers, Inc. 

NOTE: THE FIGURES SHOWN IN THE EXAMPLES ARE ENTIRELY HYPOTHETICAL. THEY ARE NOT
REPRESENTATIONS OF PAST OR FUTURE PERFORMANCE OR EXPENSES; ACTUAL PERFORMANCE
AND/OR EXPENSES MAY BE MORE OR LESS THAN SHOWN.
    
4.   INVESTMENT OBJECTIVES AND POLICIES.      

     The investment objective and general investment policies of the Fund are
described below. There can be no assurance that the investment objective of the
Fund will be achieved.  Because the market value of the Fund's investments will
change, the net asset value per share of the Fund also will vary. 

     HARD ASSETS FUND seeks long-term growth of capital and income.  The Fund
concentrates investments in a domestically-traded portfolio of common stocks of
companies principally engaged in the business of deriving revenues from a
tangible or real asset base ("hard assets").  These types of companies include
companies principally engaged in the extraction, processing, distribution,
marketing or leasing of energy-related products, timber, agricultural products,
minerals, precious metals or real estate holdings ("hard assets industries").  A
particular company is deemed to be "principally engaged" in a hard assets
industry if at the time of investment the Portfolio Manager considers that at
least 50% of the company's assets, revenues or profits are derived from a hard
assets industry.  Normally, no more than 65% of the assets of the Fund will be
invested in any particular hard assets industry.

     The Fund will seek to identify securities of companies which, based upon
the Portfolio Manager's evaluation of their fundamental investment
characteristics, are undervalued in comparison to 

                                      -3-
<PAGE>
 
the present or anticipated value of their respective peer groups and exhibit
specific qualitative parameters important to the Portfolio Manager. Replacements
of portfolio positions are made when the Portfolio Manager believes that an
existing position no longer exhibits the positive value or qualitative
characteristics it had at the time of investment.
 
     The Fund may invest a portion of its assets in securities of foreign
issuers traded on foreign securities markets, which will not exceed 15% of the
Fund's assets at the time of investment. 

     The Fund, because of its emphasis on certain related industrial sectors,
should be considered as one aspect of a diversified portfolio and may not be
suitable by itself as a balanced investment program. The Portfolio Manager for
the Hard Assets Fund is NFJ.

     The Fund's investment objective and, unless otherwise noted, its
restrictions and policies relating to the investment of its assets are non-
fundamental and may be changed without shareholder approval.  The annual
portfolio turnover rate for the Fund is expected to be less than 100%.

                                      -4-
<PAGE>

    
5.   CHARACTERISTICS AND RISKS OF SECURITIES AND INVESTMENT TECHNIQUES.      

     Unless otherwise noted, the securities and investment techniques and
related risks applicable to the Hard Assets Fund are the same as those described
for PIMCO Precious Metals Fund in the Retail Prospectus (although the Hard
Assets Fund is generally more limited that the Precious Metals Fund with respect
to investments in foreign securities and related derivative instruments). 
    
6.   MANAGEMENT OF THE TRUST.      

     Disclosure relating to PIMCO Advisors L.P., the Investment Advisor and
Administrator for each of the Funds, is included under the sub-headings
"Investment Advisor" and "Fund Administrator" under "Management of the Trust" in
the Retail Prospectus.

                                      -5-
<PAGE>
 
     NFJ manages the Hard Assets Fund. Chris Najork, Benjamin Fischer and Paul
A. Magnuson are primarily responsible for the day-to-day management of the Hard
Assets Fund. Disclosure relating to NFJ and Messrs. Najork, Fischer and Magnuson
is included under "Management of the Trust - Portfolio Managers - NFJ" in the
Retail Prospectus. 

     ADVISORY AND ADMINISTRATIVE FEES  The Fund features fixed advisory and
administrative fees. For providing or arranging for the provision of investment
advisory services to the Fund, PIMCO Advisors L.P. receives monthly Advisory
Fees from the Fund at the annual rate of .60% based on the average daily net
assets of the Fund. Pursuant to the portfolio management agreement between PIMCO
Advisors L.P. and NFJ, PIMCO Advisors (and not the Fund or the Trust) pays NFJ
fees at the annual rate of .50% for the Fund. 

     For providing or procuring administrative services for the Fund as
described above, PIMCO Advisors L.P. (in its capacity as Administrator) receives
monthly Administrative Fees from the Fund at the annual rate of .40% based on
the average daily net assets attributable in the aggregate to the Fund's Class
A, Class B and Class C Shares.
    
7.   DISTRIBUTIONS.      

     Net investment income from interest and dividends, if any, will be declared
and paid at least annually to shareholders of record by the Fund. 

                                      -6-
<PAGE>
 
                       PIMCO FUNDS: MULTI-MANAGER SERIES
    
                       Supplement Dated _________, 1999     
                                    to the
    
                      Prospectus for Class A, Class B and
                  Class C Shares dated April __, 1999     

                            Disclosure relating to:
    
                          PIMCO Enhanced Equity Fund
                          PIMCO Small-Cap Growth Fund
                          PIMCO Micro-Cap Growth Fund
                        PIMCO International Growth Fund      
- --------------------------------------------------------------------------------
    
Note: This document supplements the PIMCO Funds: Multi-Manager Series (the
"Trust") Prospectus for Class A, Class B and Class C Shares dated April __,
1999 (the "Retail Prospectus") which is included in Part A of this Registration
Statement.      
- --------------------------------------------------------------------------------

     The Trust intends to offer Class A, Class B and Class C Shares of the PIMCO
Enhanced Equity Fund, PIMCO Small Cap Growth Fund, PIMCO Micro Cap Growth Fund
and PIMCO International Growth Fund (together, the "Funds").

1.   Schedule of Fees (applicable to all Funds).

Shareholder Transaction Expenses:
- --------------------------------
<TABLE> 
<CAPTION> 
                                                                     Class A         Class B        Class C
                                                                     Shares          Shares         Shares
                                                                     ------          ------         ------
<S>                                                                  <C>             <C>            <C> 
Maximum initial sales charge imposed on purchases                    5.50%           None           None
   (as a percentage of offering price at time of purchase)

Maximum sales charge imposed on reinvested dividends                 None            None           None
   (as a percentage of offering price at time of purchase)

Maximum contingent deferred sales charge ("CDSC")                    1%/(1)/         5%/(2)/        1%/(3)/
   (as a percentage of original purchase price)

Exchange Fee                                                         None            None           None
</TABLE> 
- -------------------
(1) Imposed only in certain circumstances where Class A shares are purchased
without a front-end sales charge at the time of purchase. See "Alternative
Purchase Arrangements" in the Retail Prospectus.
(2) The maximum CDSC is imposed on shares redeemed in the first year. For shares
held longer than one year, the CDSC declines according to the schedule set forth
under "Alternative Purchase Arrangements -- Deferred Sales Charge Alternative --
Class B Shares" in the Retail Prospectus. 
(3) The CDSC on Class C shares is imposed only on shares redeemed in the first
year.
<PAGE>
 
<TABLE> 
<CAPTION> 
                                                               Example: You would pay the
                                                               following expenses on a         Example:  You would pay
Class A Shares              Annual Fund                        $1,000 investment assuming      the following expenses on a
                            Operating Expenses                 (1) 5% annual return and (2)    $1,000 investment assuming
                            (As a percentage of average net    redemption at the end of each   (1) 5% annual return and (2)
                            assets):                           time period:                    no redemption:
- ------------------------------------------------------------------------------------------------------------------------------
                                                        Total
                                     Admini-             Fund
Fund                        Advisory strative  12b-1  Operating  1      3       5       10      1       3       5      10
                             Fees    Fees/1/  Fees/2/  Expenses Year   Years  Years   Years    Year   Years   Years   Years
- ------------------------------------------------------------------------------------------------------------------------------
<S>                         <C>      <C>      <C>     <C>       <C>    <C>    <C>     <C>      <C>    <C>     <C>     <C>   
Enhanced Equity              .45%     .40%     .25%   1.10%     $66    $88    $112    $182     $66    $88     $112    $182
Small Cap Growth            1.00      .40      .25    1.65      $71    $104   $140    $240     $71    $104    $140    $240
Micro Cap Growth            1.25      .40      .25    1.90      $73    $111   $152    $265     $73    $111    $152    $265
International Growth         .85      .65      .25    1.75      $72    $107   $145    $250     $72    $107    $145    $250
- ------------------------------------------------------------------------------------------------------------------------------
<CAPTION> 
                                                                Example: You would pay the
                                                                following expenses on a        Example:  You would pay
Class B Shares              Annual Fund                         $1,000 investment assuming     the following expenses on a
                            Operating Expenses                  (1) 5% annual return and (2)   $1,000 investment assuming
                            (As a percentage of average net     redemption at the end of each  (1) 5% annual return and (2)
                            assets):                            time period:                   no redemption:
- ------------------------------------------------------------------------------------------------------------------------------
                                      Total
                                     Admini-             Fund
Fund                        Advisory strative  12b-1  Operating  1      3       5       10      1       3       5      10
                             Fees    Fees/1/  Fees/2/  Expenses Year   Years  Years   Years    Year   Years   Years   Years
- ------------------------------------------------------------------------------------------------------------------------------
<S>                         <C>      <C>      <C>     <C>       <C>    <C>    <C>     <C>      <C>    <C>     <C>     <C>   
Enhanced Equity              .45%     .40%     1.00%   1.85%    $69    $88    $120     $188    $19    $58     $100    $188
Small Cap Growth            1.00      .40      1.00    2.40     $74    $105   $148     $246    $24    $75     $128    $246
Micro Cap Growth            1.25      .40      1.00    2.65     $77    $112   $161     $271    $27    $82     $141    $271
International Growth         .85      .65      1.00    2.50     $75    $108   $153     $256    $25    $78     $133    $256
- ------------------------------------------------------------------------------------------------------------------------------

<CAPTION> 
                                                                Example: You would pay the
                                                                following expenses on a        Example:  You would pay
Class C Shares              Annual Fund                         $1,000 investment assuming     the following expenses on a
                            Operating Expenses                  (1) 5% annual return and (2)   $1,000 investment assuming
                            (As a percentage of average net     redemption at the end of each  (1) 5% annual return and (2)
                            assets):                            time period:                   no redemption:
- ------------------------------------------------------------------------------------------------------------------------------
                                      Total
                                     Admini-             Fund
Fund                        Advisory strative  12b-1  Operating  1      3       5       10      1       3       5      10
                             Fees    Fees/1/  Fees/2/  Expenses Year   Years  Years   Years    Year   Years   Years   Years
- ------------------------------------------------------------------------------------------------------------------------------
<S>                         <C>      <C>      <C>     <C>       <C>    <C>    <C>     <C>      <C>    <C>     <C>     <C>   
Enhanced Equity              .45%     .40%     1.00%  1.85%     $29    $58    $100    $217     $19    $58     $100    $217
Small Cap Growth            1.00      .40      1.00   2.40      $34    $75    $128    $274     $24    $75     $128    $274
Micro Cap Growth            1.25      .40      1.00   2.65      $37    $82    $141    $298     $27    $82     $141    $298
International Growth         .85      .65      1.00   2.50      $35    $78    $133    $284     $25    $78     $133    $284
- ------------------------------------------------------------------------------------------------------------------------------
</TABLE> 

1. The Administrative Fees for each Fund are subject to reduction to the extent
that the average net assets attributable in the aggregate to the Fund's Class A,
Class B and Class C shares exceed $2.5 billion. See "Management of the Trust --
Advisory and Administrative Fees."

2. 12b-1 fees equal to .25% represent servicing fees which are paid annually to
the Distributor and repaid to participating brokers, certain banks and other
financial intermediaries. 12b-1 fees which exceed .25% represent aggregate
distribution and servicing fees. See "Distributor and Distribution and Servicing
Plans."

                                      -2-
<PAGE>
 
The purpose of the foregoing tables is to assist investors in understanding the
various costs and expenses of the Trust that are borne directly or indirectly by
Class A, Class B and Class C shareholders of the Funds. The Examples for Class A
shares assume payment of the current maximum applicable sales load. Due to the
12b-1 distribution fee imposed on Class B and Class C shares, a Class B or Class
C shareholder of a Fund may, depending on the length of time the shares are
held, pay more than the economic equivalent of the maximum front-end sales
charges permitted by relevant rules of the National Association of Securities
Dealers, Inc.

NOTE: The figures shown in the Examples are entirely hypothetical. They are not
representations of past or future performance or expenses; actual performance
and/or expenses may be more or less than shown.

2.   Investment Objectives and Policies; Characteristics and Risks of Securities
     and Investment Techniques.
    
     The investment objective and general investment policies of the Funds and
related risks of securities and investment techniques are described in the
corresponding sections of the Trust's Prospectus for Institutional and
Administrative Class Shares, dated April __, 1999 (the "Institutional
Prospectus"), which is included in Part A of this Registration Statement. The
relevant disclosure in the Institutional Prospectus is incorporated herein by
reference.     

3.   Distributions.

     Disclosure relating to Fund distributions is incorporated herein by
reference to "Dividends, Distributions and Taxes" in the Institutional
Prospectus.

4.   Management of the Trust.

     Disclosure relating to the Investment Advisor and Portfolio Managers of the
Funds (including advisory and portfolio management fees) and the Administrator
for each of the Funds is incorporated herein by reference to the corresponding
sub-sections of "Management of the Trust" in the Institutional Prospectus.

Administrative Fees
- -------------------

     For providing or procuring administrative services for the Funds as
described above, PIMCO Advisors L.P. (in its capacity as Administrator) receives
monthly Administrative Fees from the Funds at the following annual rates, each
based on the average daily net assets attributable in the aggregate to the
relevant Fund's Class A, Class B and Class C Shares: Enhanced Equity Fund -
 .40%; Small Cap Growth Fund - .40%; Micro Cap Growth Fund - .40%; International
Growth Fund - .65%.

                                -3-
<PAGE>
 
                       PIMCO FUNDS: MULTI-MANAGER SERIES
    
                      Supplement Dated           , 1999     
                                       ----------  
                                    to the
    
                        Prospectus for Class A, Class B
                and Class C Shares Dated April __, 1999     
                            Disclosure relating to
                  PIMCO Structured Emerging Markets Fund and
              PIMCO Tax-Efficient Structured Emerging Markets Fund

- -------------------------------------------------------------------------------
    
Note: This document supplements the PIMCO Funds: Multi-Manager Series (the
- -----                                                                     
"Trust") Prospectus for Class A, Class B and Class C Shares dated April __,
1999 (the "Retail Prospectus") which is included in Part A of this Registration
Statement.      
- -------------------------------------------------------------------------------

     The Trust intends to offer Class A, Class B and Class C Shares of PIMCO
Structured Emerging Markets Fund (the "Structured Emerging Markets Fund") and
PIMCO Tax-Efficient Structured Emerging Markets Fund (the "Tax-Efficient
Structured Emerging Markets Fund" and, together with the Structured Emerging
Markets Fund, the "Funds"). 

1.   Schedule of Fees (applicable to both Funds).
 
<TABLE>  
<CAPTION> 
                                       Structured Emerging Markets Fund and
                                  Tax-Efficient Structured Emerging Markets Fund
                                  ----------------------------------------------

 
Shareholder Transaction Expenses:
- ---------------------------------
                                                            Class A    Class B    Class C
                                                             Shares     Shares     Shares
                                                            --------   --------   --------
<S>                                                        <C>        <C>         <C>
Maximum initial sales charge imposed on purchases             5.50%       None        None
 (as a percentage of offering price at time of
  purchase)
 
Maximum sales charge imposed on reinvested dividends          None        None        None
 (as a percentage of offering price at time of
  purchase)
 
Maximum contingent deferred sales charge ("CDSC")             1%/(1)/     5%/(2)/     1%/(3)/
 (as a percentage of original purchase price)
 
Exchange Fee                                                  None        None        None
- ----------------
</TABLE>  
(1) Imposed only in certain circumstances where Class A shares are purchased
without a front-end sales charge at the time of purchase.  See "Alternative
Purchase Arrangements" in the Retail Prospectus.
(2) The maximum CDSC is imposed on shares redeemed in the first year. For shares
held longer than one year, the CDSC declines according to the schedule set forth
under "Alternative Purchase Arrangements -- Deferred Sales Charge Alternative --
Class B Shares" in the Retail Prospectus.
(3)  The CDSC on Class C shares is imposed only on shares redeemed in the first
year.
<PAGE>
 
Annual Fund Operating Expenses (as a percentage of average daily net assets):
- ------------------------------
 
                                                Service/  Total Fund
                   Advisory   Administrative     12b-1     Operating
                     Fees        Fees/(1)/     Fees/(2)/    Expenses
                   ---------  ---------------  ----------  ----------
 Class A Shares         .45%             .65%        .25%       1.35%
 Class B Shares         .45%             .65%       1.00%       2.10%
 Class C Shares         .45%             .65%       1.00%       2.10%
- ------------------

1. The Administrative Fees for each Fund are subject to reduction to the extent
that the average net assets attributable in the aggregate to the Fund's Class A,
Class B and Class C shares exceed $2.5 billion. See "Management of the Trust --
Advisory and Administrative Fees."

2. 12b-1 fees equal to .25% represent servicing fees which are paid annually to
the Distributor and repaid to participating brokers, certain banks and other
financial intermediaries.  12b-1 fees which exceed .25% represent aggregate
distribution and servicing fees.  See "Distributor and Distribution and
Servicing Plans."

Examples:
- ---------

     You would pay the following expenses on a $1,000 investment assuming (1) 5%
annual return and (2) redemption at the end of each time period:


                           1 Year                3 Years
                           ------                -------
Class A Shares
Class B Shares
Class C Shares

     You would pay the following expenses on a $1,000 investment assuming (1) 5%
annual return and (2) no redemption:


                           1 Year                3 Years
                           ------                -------
Class A Shares
Class B Shares
Class C Shares

     The purpose of the foregoing tables is to assist investors in understanding
the various costs and expenses of the Trust that are borne directly or
indirectly by Class A, Class B and Class C shareholders of the Funds.  The
Examples for Class A shares assume payment of the current maximum applicable
sales load.  Due to the 12b-1 distribution fee imposed on Class B and Class C
shares, a Class B or Class C shareholder of a Fund may, depending on the length
of time the shares are held, pay more than the economic equivalent of the
maximum front-end sales charges permitted by relevant rules of the National
Association of Securities Dealers, Inc.

NOTE: The figures shown in the Examples are entirely hypothetical. They are not
representations of past or future performance or expenses; actual performance
and/or expenses may be more or less than shown.

                                      -2-
<PAGE>
 
2.   Investment Objectives and Policies.

     The investment objective and general investment policies of the Funds are
described below. There can be no assurance that the investment objective of
either Fund will be achieved. Because the market value of the Funds' investments
will change, the net asset value per share of the Funds also will vary.
    
     Structured Emerging Markets Fund seeks long-term growth of capital. The
     --------------------------------
Fund invests primarily in equity securities of companies located in, or whose
business relates to, emerging markets. The Portfolio Manager will identify those
markets that it considers to be emerging markets, relying primarily on those
countries listed on the Morgan Stanley Capital International Emerging Markets 
Fee Index ("MSCI Fee Index") or the Baring Emerging Markets Index. However, the
Portfolio Manager has discretion in identifying other countries that qualify as
emerging markets on the basis of market capitalization and liquidity, as well as
their inclusion, or consideration for inclusion, as emerging market countries in
other broad-based market indexes. The Fund seeks to achieve its objective by
following a disciplined and systematic methodology for selecting and weighting
countries, industries, and stocks. Diversification and consistent exposure to
opportunity are emphasized over tactical timing decisions with regard to
countries, industries, or stocks. A disciplined methodology for maintaining the
allocation to countries, industries, and stocks is utilized in portfolio
composition, rather than discretionary shifting in country and industry
concentration levels. First, countries are selected based upon their level of
development and equity market institutions. GNP per capita, local economic
diversification, and freedom of investment flows are the primary considerations
in country selection decisions. Most countries are assigned an equal weight in
the Fund unless the size of their equity market is prohibitive; countries with
smaller markets (i.e., less than $5 billion of market capitalization) are
assigned one-half of the weight assigned to countries with larger markets.
Second, all stocks in each eligible country are divided into five broad economic
sector groups: financial, industrial, consumer, utilities, and natural
resources. The Portfolio Manager will generally endeavor to maintain exposure
across all five sectors in each country. Finally, stocks are selected and
purchased to fill out the country and industry structure. Stock purchase
candidates are examined for liquidity, industry representation, performance
relative to industry, and long-term profitability. Under normal market
conditions and assuming Fund size of at least $5 million, the Portfolio Manager
will endeavor to maintain investment exposure to roughly 20 countries and hold
in excess of 200 securities in the Fund. The allocation methodology described
above may be changed from time to time based on evaluations of economic trends
by the Portfolio Manager, consistent with the principles of broad country and
company diversification of the Fund's investments. The Portfolio Manager for the
Structured Emerging Markets Fund is Parametric Portfolio Associates
("Parametric").    
     For purposes of implementing its investment objective, the Fund invests
primarily in some or all of the following emerging market countries (this list
is not exclusive):
         
Argentina            India               Peru                South Africa 
Botswana             Indonesia           Philippines         South Korea  
Brazil               Israel              Poland              Thailand      
Chile                Kenya               Portugal            Turkey         
China                Latvia              Russia              Venezuela      
Colombia             Lithuania           Romania             Zimbabwe       
Czech Republic       Mauritius           Slovak Republic                    
Egypt                Malaysia            Slovenia                          
Estonia              Mexico 
Ghana                Morocco 
Greece               Pakistan 
Hungary      
     

                                      -3-
<PAGE>
 
     For purposes of allocating the Fund's investments, a company is considered
to be located in the country in which the company is domiciled, and a company's
business "relates to" any emerging market country in which the company's
securities are primarily traded, from which the company derives a significant
portion of its revenues, or in which a significant portion of the company's
goods or services are produced.
        
     Most of the foreign securities in which the Fund invests will be
denominated in foreign currencies. The Fund may engage in foreign currency
transactions to protect itself against fluctuations in currency exchange rates
in relation to the U.S. dollar or to the weighting of a particular foreign
currency on the the MSCI Free Index or the Baring Index. Such foreign currency
transactions may include forward foreign currency contracts, foreign exchange
futures contracts, and options thereon, currency exchange transactions on a spot
(i.e., cash) basis, and put and call options on foreign currencies. The Fund may
invest in stock index futures contracts, and options thereon, and may sell
(write) call and put options. The Fund may also engage in equity index swap
transactions.  The Fund may also invest up to 5% of its assets in debt 
securities of issuers located in emerging market countries, including corporate
debt securities and obligations issued or guaranteed by a Foreign government or 
its agencies, authorities or instrumentalities.     

     Investing in securities of foreign issuers, and particularly emerging
market issuers, involves special risks and considerations not typically
associated with investing in U.S. companies. For a discussion of such risks, see
"Characteristics and Risks of Securities and Investment Techniques - Foreign
Securities" in the Retail Prospectus.

     Tax-Efficient Structured Emerging Markets Fund has the same investment
     ----------------------------------------------
objective and policies as the Structured Emerging Markets Fund, except that the
Fund seeks to achieve superior after-tax returns for its shareholders in part by
minimizing the taxes they incur in connection with the Fund's investment income
and realized capital gains. While the Fund seeks to minimize investor taxes
associated with the Fund's investment income and realized capital gains, the
Fund may have taxable investment income and may realize taxable gains from time
to time. The Portfolio Manager for the Fund is Parametric.
    
     As specified above, the Fund seeks to achieve after-tax returns for its
shareholders in part by minimizing the taxes they incur in connection with the
Fund's investment income and realized capital gains. Taxes on realized capital
gains are minimized in part by maintaining relatively low portfolio turnover,
and by employing a variety of tax-efficient management strategies. The Fund will
generally seek to avoid realizing net short-term capital gains and, when
realizing gains, will attempt to realize long-term gains (i.e., gains on
securities held for more than 12 months) in such a manner as to maximize the net
gains from securities held for more than 18 months. The Fund intends to notify
each shareholder as to that portion of his or her capital gain dividends which
qualifies for a maximum tax rate of 20% in the hands of the shareholder. Net
short-term capital gains, when distributed, will be taxed as ordinary income, at
graduated rates of up to 39.6%. When the Fund decides to sell a particular
appreciated security, it will normally select for sale first those share lots
with holding periods exceeding 12 months and among those, the share lots with
the highest cost basis. The Fund may, when prudent, sell securities to realize
capital losses that can be used to offset realized capital gains.     

     To protect against price declines in securities holdings with large
accumulated capital gains, the Fund may, to the extent permitted by law, use
hedging techniques such as the purchase of put options, the sale of stock index
futures contracts, and equity swaps. By using these techniques rather than
selling such securities the Fund can reduce its exposure to price declines in
the securities without realizing substantial capital gains. The usefulness of
such practices have, however, been substantially reduced in the Taxpayer Relief
Act of 1997, effective for transactions after June 8, 1997.

                                      -4-
<PAGE>
 
     The Fund follows the practice of distributing selected appreciated
securities to meet redemptions of certain investors and may, within certain
limits, use the selection of securities distributed to meet such redemptions as
a management tool. By distributing appreciated securities the Fund can reduce
its position in such securities without realizing capital gains. During periods
of net withdrawals by investors in the Fund, using distributions of securities
also enables the Fund to avoid the forced sale of securities to raise cash for
meeting redemptions.

     It is expected that by employing the various tax-efficient management
strategies described, the Fund can minimize the extent to which shareholders
incur taxes as a result of realized capital gains. The Fund may nevertheless
realize gains and shareholders will incur tax liability from time to time.

     Unless otherwise noted, the Fund's objective and its restrictions and
policies relating to the investment of its assets are non-fundamental and may be
changed without shareholder approval.

3.   Characteristics and Risks of Securities and Investment Techniques.
    
     The Funds may invest in the securities and utilize the investment
techniques described under the sub-headings "Investment in Companies with Small
and Medium Capitalizations," "Foreign Investments," "Foreign Currency
Transactions," "Money Market Instruments," "Convertible Securities," "Derivative
Instruments" (including "Options on Securities, Securities Indexes, Commodity
Indexes and Currencies," "Swap Agreements," and "Futures Contracts and Options
on Futures Contracts"), "Loans of Portfolio Securities," "Short Sales," "When-
Issued, Delayed Delivery and Forward Commitment Transactions," "Repurchase
Agreements," "Reverse Repurchase Agreements and Other Borrowings," "Illiquid
Securities," "Investment in Investment Companies," and "Credit and Market Risk
of Fixed Income Securities" under "Characteristics and Risks of Securities and
Investment Techniques" in the Retail Prospectus.     
        
     The annual portfolio turnover rate for the Structured Emerging Markets Fund
is expected to be less than 100%. The annual portfolio turnover rate for the
Tax-Efficient Structured Emerging Markets Fund is expected to be less than 40%.
     
4.   Management of the Trust.

Advisory and Administrative Fees
- ---------------------------------

     The Funds features fixed advisory and administrative fees. For providing or
arranging for the provision of investment advisory services to the Funds, PIMCO
Advisors L.P. receives monthly Advisory Fees from the Structured Emerging
Markets Fund at the annual rate of 0.45% and from the Tax-Managed Structured
Emerging Markets Fund at the annual rate of 0.45%, each based on the average
daily net assets of the relevant Fund. Pursuant to the portfolio management
agreement between PIMCO Advisors L.P. and Parametric, PIMCO Advisors L.P. (and
not the Funds or the Trust) pays Parametric fees at the annual rate of 0.35%
based on the average daily net assets of the Structured Emerging Markets Fund
and 0.35% based on the average daily net assets of the Tax-Efficient Structured
Emerging Markets Fund.

     For providing or procuring administrative services for the Funds as
described above, PIMCO Advisors L.P. (in its capacity as Administrator) receives
monthly Administrative Fees from the Structured Emerging Markets Fund at the
annual rate of 0.65% and from the Tax-Efficient Structured Emerging Markets Fund
at the annual rate of 0.65%, each based on the average daily net assets
attributable in the aggregate to the relevant Fund's Class A, Class B and Class
C Shares.

                                      -5-
<PAGE>
 
5.   Distributions.

     Net investment income from interest and dividends, if any, will be declared
and paid at least annually to shareholders of record by the Structured Emerging
Markets Fund.  While the Tax-Efficient Structured Emerging Markets Fund seeks to
minimize taxable distributions, the Fund may be expected to earn and distribute
taxable income and may also be expected to realize and distribute capital gains
from time to time. Net investment income from interest and dividends, if any,
will be declared and paid at least annually to shareholders of record by the
Tax-Efficient Structured Emerging Markets Fund.

                                      -6-
<PAGE>
 
                   PIMCO Funds Prospectus

    
                   -------------------------------------------------------------
Multi-Manager      PIMCO EQUITY ADVISORS DIVISION OF PIMCO ADVISORS L.P.
Series             Growth Fund                         Opportunity Fund
April _, 1999      Target Fund                         Innovation Fund       
Share Classes
Ins Institutional  -------------------------------------------------------------
Adm Administrative BLAIRLOGIE CAPITAL MANAGEMENT 
                   Emerging Markets Fund               International Fund
                   International Developed Fund
      
                   -------------------------------------------------------------
                   CADENCE CAPITAL MANAGEMENT
                   Capital Appreciation Fund           Micro-Cap Growth Fund
                   Mid-Cap Growth Fund                 Small-Cap Growth Fund
         
                   -------------------------------------------------------------
                   COLUMBUS CIRCLE INVESTORS
                   Renaissance Fund                    Mid-Cap Equity Fund
                   Core Equity Fund                    International Growth Fund
                                                                                
                   -------------------------------------------------------------
                   NFJ INVESTMENT GROUP 
                   Equity Income Fund                  Value 25 Fund
                   Value Fund                          Small-Cap Value Fund
        
                   -------------------------------------------------------------
                   PARAMETRIC PORTFOLIO ASSOCIATES
                   Enhanced Equity Fund                Tax-Efficient Equity Fund
                   Structured Emerging Markets Fund
                   Tax-Efficient Structured Emerging
                   Markets Fund
                   
                   -------------------------------------------------------------
                   MULTIPLE MANAGERS
                   Balanced Fund


                                                                         PIMCO
                                                                        ------
                                                                         FUNDS

      
<PAGE>
 
PIMCO Funds: Multi-Manager Series
Prospectus
   
April  , 1999     
   
PIMCO Funds: Multi-Manager Series (the "Trust"), formerly PIMCO Funds: Equity
Advisors Series, is an open-end series management investment company ("mutual
fund"). This Prospectus describes twenty-four separate diversified investment
portfolios (the "Funds") of the Trust. Each Fund has its own investment
objective and policies. The Trust is designed to provide access to the
professional investment management services offered by PIMCO Advisors L.P.
("PIMCO Advisors") and the Funds' Portfolio Managers.     
 
This Prospectus describes two classes of shares which may be offered by each
Fund: the "Institutional Class" and the "Administrative Class." Through
separate prospectuses, certain Funds may offer up to four additional classes
of shares, Class A, Class B, Class C, and Class D shares. See "Other
Information--Multiple Classes of Shares."
 
This Prospectus sets forth concisely the information a prospective investor
should know before investing in the Funds. It should be read and retained for
ready reference to information about the Funds. Information about the
investment objective of each Fund, along with a detailed description of the
types of securities in which each Fund may invest, and of investment policies
and restrictions applicable to each Fund, are set forth in this Prospectus.
There can be no assurance that the investment objective of any Fund will be
achieved. Because the market value of the Funds' investments will change, the
investment returns and net asset value per share of each Fund will vary.
   
A Statement of Additional Information, dated April  , 1999, as amended or
supplemented from time to time, containing additional and more detailed
information about the Funds, has been filed with the Securities and Exchange
Commission and is hereby incorporated by reference into this Prospectus. The
Securities and Exchange Commission maintains an Internet World Wide Web site
(at www.sec.gov) which contains the Statement of Additional Information,
materials that are incorporated by reference into this Prospectus and the
Statement of Additional Information, and other information about the Funds.
The Statement of Additional Information is available without charge and may be
obtained by writing or calling:     
 
                     PIMCO Funds
                     840 Newport Center Drive, Suite 300
                     Newport Beach, CA 92660
                     Telephone: 1-800-927-4648
                                1-800-987-4626 (PIMCO Infolink Audio Response
                                                Network).
 
These securities have not been approved or disapproved by the Securities and
Exchange Commission or any state securities commission, nor has the Securities
and Exchange Commission or any state securities commission passed upon the
accuracy or adequacy of this Prospectus. Any representation to the contrary is
a criminal offense.
 
Shares of the Funds are not deposits or obligations of, or guaranteed or
endorsed by, any financial institution, and the shares are not federally
insured by the Federal Deposit Insurance Corporation, the Federal Reserve
Board, or any other agency, and involve risk, including the possible loss of
principal.
 
2 PIMCO Funds: Multi-Manager Series
<PAGE>
 
                               TABLE OF CONTENTS
 
<TABLE>   
<CAPTION>
                                                                            Page
                                                                            ----
   <S>                                                                      <C>
   Prospectus Summary......................................................   4
   Expense Information.....................................................   9
   Financial Highlights....................................................  12
   Investment Objectives and Policies......................................  18
   Investment Restrictions.................................................  33
   Characteristics and Risks of Securities and Investment Techniques.......  35
   Management of the Trust.................................................  49
   Purchase of Shares......................................................  56
   Redemption of Shares....................................................  60
   Portfolio Transactions..................................................  62
   Net Asset Value.........................................................  63
   Dividends, Distributions and Taxes......................................  64
   Other Information.......................................................  66
</TABLE>    

                                                   April  , 1999 Prospectus   3
<PAGE>
 
                               PROSPECTUS SUMMARY
- --------------------------------------------------------------------------------
   
  PIMCO Funds: Multi-Manager Series (the "Trust") is an open-end management
investment company ("mutual fund") organized as a Massachusetts business trust
on August 24, 1990. This Prospectus describes twenty-four separate diversified
investment portfolios (the "Funds") offered by the Trust.     
 
                              Comparison of Funds
 
  The following chart provides general information about each of the Funds. It
is qualified in its entirety by the more complete descriptions of the Funds
appearing elsewhere in this Prospectus.
 
Portfolio Manager
 and Fund              Investment Objective and Primary Investments
- --------------------------------------------------------------------------------
   
PIMCO Equity
Advisors Division of
PIMCO Advisors      
                      
 Growth                Seeks long-term growth of capital, income is incidental;
                       invests primarily in common stocks of companies with
                       market capitalizations of at least $5 billion.     
- --------------------------------------------------------------------------------
           
 Target                Seeks capital appreciation, with no consideration given
                       to income; invests primarily in common stocks of
                       companies with market capitalizations of between $1
                       billion and $10 billion.      
- --------------------------------------------------------------------------------
                       
 Opportunity           Seeks capital appreciation, with no consideration given
                       to income; invests primarily in common stocks of
                       companies with market capitalizations of less than $2
                       billion.     
- --------------------------------------------------------------------------------
               
 Innovation            Seeks capital appreciation, with no consideration given
                       to income; invests primarily in common stocks of
                       technology-related companies.     
- --------------------------------------------------------------------------------
Blairlogie Capital
Management
 
 Emerging Markets      Seeks long-term growth of capital; invests primarily in
                       common stocks of companies located in emerging market
                       countries.
- --------------------------------------------------------------------------------
 International         Seeks long-term growth of capital; invests primarily in
 Developed             a diversified portfolio of international equity
                       securities.
- --------------------------------------------------------------------------------
 International         Seeks capital appreciation, income is incidental;
                       invests primarily in common stocks of non-U.S. issuers.
- --------------------------------------------------------------------------------
 
Cadence Capital
Management
 
 Capital               Seeks growth of capital; invests primarily in common
 Appreciation          stocks of companies with market capitalizations of at
                       least $1 billion that have improving fundamentals and
                       whose stock is reasonably valued by the market.
- --------------------------------------------------------------------------------
 Mid-Cap Growth        Seeks growth of capital; invests primarily in common
                       stocks of companies with market capitalizations in
                       excess of $500 million that have improving fundamentals
                       and whose stock is reasonably valued by the market.
- --------------------------------------------------------------------------------
 Micro-Cap Growth      Seeks long-term growth of capital; invests primarily in
                       common stocks of companies with market capitalizations
                       of less than $100 million that have improving
                       fundamentals and whose stock is reasonably valued by the
                       market.
- --------------------------------------------------------------------------------
 Small-Cap Growth      Seeks growth of capital; invests primarily in common
                       stocks of companies with market capitalizations between
                       $50 million and $1 billion that have improving
                       fundamentals and whose stock is reasonably valued by the
                       market.
- --------------------------------------------------------------------------------
 
                                       (continued on next page)
- --------------------------------------------------------------------------------
4   PIMCO Funds: Multi-Manager Series

<PAGE>
 
                         PROSPECTUS SUMMARY (continued)
- --------------------------------------------------------------------------------
                        Comparison of Funds (continued)
Portfolio Manager 
   and Fund            Investment Objective and Primary Investments
- --------------------------------------------------------------------------------
Columbus Circle
Investors
 Renaissance           Seeks long-term growth of capital and income; invests
                       primarily in common stocks with below-average valuations
                       that have improving business fundamentals.
- --------------------------------------------------------------------------------
 Core Equity           Seeks long-term growth of capital, with income as a
                       secondary objective; invests primarily in common stocks
                       of companies with market capitalizations in excess of $3
                       billion.
- --------------------------------------------------------------------------------
 Mid-Cap Equity        Seeks long-term growth of capital; invests primarily in
                       common stocks of companies with market capitalizations
                       between $800 million and $3 billion.
- --------------------------------------------------------------------------------
       
 International         Seeks long-term capital appreciation; invests primarily
 Growth                in an international portfolio of equity and equity-
                       related securities.
- --------------------------------------------------------------------------------
NFJ Investment Group

 Equity Income         Seeks current income as a primary investment objective,
                       and long-term growth of capital as a secondary
                       objective; invests primarily in common stocks with
                       below-average price to earnings ratios and higher
                       dividend yields relative to their industry groups.
- --------------------------------------------------------------------------------
 Value                 Seeks long-term growth of capital and income; invests
                       primarily in common stocks with below-average price to
                       earnings ratios relative to their industry groups.
- --------------------------------------------------------------------------------
 Value 25              Seeks long-term growth of capital and income; invests
                       primarily in approximately 25 common stocks with medium
                       market capitalizations and that have below-average price
                       to earnings ratios relative to their industry groups.
- --------------------------------------------------------------------------------
 Small-Cap Value       Seeks long-term growth of capital and income; invests
                       primarily in common stocks of companies with market
                       capitalizations between $50 million and $1 billion and
                       below-average price to earnings ratios relative to their
                       industry groups.
- --------------------------------------------------------------------------------
Parametric Portfolio
Associates
 
 Enhanced Equity       Seeks to provide a total return which equals or exceeds
                       the total return performance of an index representing
                       the performance of a reasonably broad spectrum of common
                       stocks (currently the Standard & Poor's 500 Composite
                       Stock Price Index (the "S&P 500")); invests primarily in
                       common stocks represented in the S&P 500.
- --------------------------------------------------------------------------------
 Structured            Seeks long-term growth of capital; invests primarily in
 Emerging Markets      common stocks of companies located in emerging market
                       countries.
- --------------------------------------------------------------------------------
 Tax-Efficient         Has the same investment objective and policies as the
 Structured            Structured Emerging Markets Fund, except that the Fund
 Emerging Markets      seeks to achieve superior after-tax returns for
                       shareholders by employing a variety of tax-efficient
                       management strategies.
- --------------------------------------------------------------------------------
 Tax-Efficient         Seeks maximum after-tax growth of capital; invests
 Equity                primarily in a broadly diversified portfolio of at least
                       200 common stocks of companies with larger market
                       capitalizations.
- --------------------------------------------------------------------------------
Multiple Managers

 Balanced              Seeks total return consistent with prudent investment
                       management; invests in common stocks, fixed income
                       securities and money market instruments.
- --------------------------------------------------------------------------------
 
                      Investment Risks and Considerations
 
  The following are some of the primary risks relevant to an investment in the
Funds and to the securities in which the Funds invest. Investors should read
this Prospectus carefully for a more complete discussion of the risks relating
to an investment in the Funds. The value of all securities and other
instruments held by the Funds vary from time to time in


                                                   April  , 1999 Prospectus   5
<PAGE>
 
                         PROSPECTUS SUMMARY (continued)
- --------------------------------------------------------------------------------
   
response to a wide variety of market factors. Consequently, the net asset value
per share of each Fund will vary. The net asset value per share of any Fund may
be less at the time of redemption than it was at the time of investment. Except
for the Balanced Fund, all of the Funds invest primarily in common stock or
other types of equity securities (the "Stock Funds"). Each of the Growth,
Target, Opportunity, Innovation, International, Renaissance, and International
Growth Funds may invest a portion of its assets in debt securities and may
invest up to 100% of its assets in money market instruments for temporary
defensive purposes. It is the policy of the other Stock Funds to be as fully
invested as practicable in common stock, except that the Structured Emerging
Markets and Tax-Efficient Structured Emerging Markets Funds may invest up to 5%
of their assets in debt securities of emerging market issuers. These other
Stock Funds may not invest in debt securities as a defensive investment posture
(although they may invest in such securities to provide for payment of expenses
and to meet redemption requests), and, therefore, may be more vulnerable to
general declines in stock prices. For further information, see "Investment
Objectives and Policies--Stock Funds.     
 
  Certain of the Funds may invest in debt securities rated lower than Baa by
Moody's Investors Service, Inc. ("Moody's") or BBB by Standard & Poor's Ratings
Services ("S&P"). Such securities carry a high degree of credit risk and are
considered speculative by the major rating agencies. Certain Funds may invest
in securities of foreign issuers, which may be subject to additional risk
factors, including foreign currency and political risks, not applicable to
securities of U.S. issuers. Investments by certain Funds in securities of
issuers based in countries with developing economies may pose political,
currency, and market risks greater than, or in addition to, risks of investing
in foreign developed countries. Certain of the Funds' investment techniques may
involve a form of borrowing, which may tend to exaggerate the effect on net
asset value of any increase or decrease in the market value of a Fund's
portfolio and may require liquidation of portfolio positions when it is not
advantageous to do so.
 
  Certain Funds may (but are not required to) use derivative instruments,
including futures, options, options on futures, and swap agreements, for
hedging purposes or as part of their investment strategies. Use of these
instruments may involve certain costs and risks, including the risk that a Fund
could not close out a position when it would be most advantageous to do so, the
risk of an imperfect correlation between the value of the securities being
hedged and the value of the particular derivative instrument, and the risk that
unexpected changes in interest rates may adversely affect the value of a Fund's
investments in particular derivative instruments.
 
  The Funds offer their shares to both retail and institutional investors.
Institutional shareholders, some of whom also may be investment advisory
clients of PIMCO Advisors L.P. or its affiliates, may hold large positions in
certain of the Funds. Such shareholders may on occasion make large redemptions
of their holdings in the Funds to meet their liquidity needs, in connection
with strategic adjustments to their overall portfolio of investments, or for
other purposes. Large redemptions from some Funds could require liquidation of
portfolio positions when it is not most desirable to do so. Liquidation of
portfolio holdings also may cause a Fund to realize taxable capital gains.
 
                   Investment Adviser and Portfolio Managers
   
  PIMCO Advisors L.P. ("PIMCO Advisors" or the "Adviser") serves as investment
adviser to the Trust. PIMCO Advisors is one of the largest investment
management firms in the U.S. As of December 31, 1998, PIMCO Advisors and its
subsidiary partnerships had approximately $244.2 billion in assets under
management. Subject to the supervision of the Board of Trustees of the Trust,
the Adviser is responsible for the investment program for the Funds in
accordance with each Fund's investment objective, policies, and restrictions.
The PIMCO Equity Advisors Division of PIMCO Advisors (the "PIMCO Equity
Advisors Division") serves as the Portfolio Manager for the Growth, Target,
Opportunity, and Innovation Funds. For all of the other Funds, the Adviser has
engaged its affiliates to serve as Portfolio Managers.     
- --------------------------------------------------------------------------------

6   PIMCO Funds: Multi-Manager Series

<PAGE>
 
                         PROSPECTUS SUMMARY (continued)
- --------------------------------------------------------------------------------
   
These affiliated Portfolio Managers, each of which is a subsidiary partnership
of PIMCO Advisors, are Blairlogie Capital Management ("Blairlogie"), Cadence
Capital Management ("Cadence"), Columbus Circle Investors ("Columbus Circle"),
NFJ Investment Group ("NFJ"), Pacific Investment Management Company ("Pacific
Investment Management"), and Parametric Portfolio Associates ("Parametric").
Under the supervision of PIMCO Advisors, the Portfolio Managers make
determinations with respect to the purchase and sale of portfolio securities,
and they place, in the names of the Funds, orders for execution of the Funds'
transactions. For the Balanced Fund, PIMCO Advisors determines the allocation
of the Fund's assets among common stock and fixed income securities and
reserves the right to allocate a portion of the Fund's assets for investment in
money market instruments and to manage the investment of such assets. For its
services, the Adviser receives fees based on the average daily net assets of
each Fund. The Adviser (not the Trust) compensates the Portfolio Managers it
retains for the Funds out of its advisory fees. See "Management of the Trust."
       
  [On or about March 31, 1999, it is anticipated that PIMCO Advisors will sell
substantially all of its ownership interest in Blairlogie (the "Blairlogie
Transaction). In connection with the Blairlogie Transaction, the Emerging
Markets and International Developed Funds will reorganize as series of another
mutual fund family and thereafter would not be offered as series of the Trust.
Subject to the approval of the shareholders of the International Fund, PIMCO
Advisors has determined to continue to retain Blairlogie as Portfolio Manager
of the Fund subsequent to the Blairlogie Transaction pursuant to a new
portfolio management agreement between PIMCO Advisors and Blairlogie. See
"Management of the Trust--Portfolio Managers--Blairlogie."]     
 
                               Purchase of Shares
 
  This Prospectus describes two classes of shares of each Fund: the
"Institutional Class" and the "Administrative Class." Shares of the
Institutional Class are offered primarily for direct investment by
institutional investors (Institutional Class shares may also be offered through
certain financial intermediaries that charge their customers transaction or
other fees with respect to the customers' investments in the Funds). Shares of
the Administrative Class are offered primarily through employee benefit plan
alliances, broker-dealers and other intermediaries. Each Fund pays service
and/or distribution fees to such entities for services they provide to such
Fund's shareholders of that class. Administrative Class shares of certain Funds
are not currently available for investment.
   
  Except with respect to shares of the Structured Emerging Markets and Tax-
Efficient Structured Emerging Markets Funds, shares of the Institutional Class
and Administrative Class of the Funds are offered at the relevant next
determined net asset value with no sales charge or other fee. A "Fund
Reimbursement Fee" is normally charged on purchases of Institutional Class and
Administrative Class shares of the Structured Emerging Markets and Tax-
Efficient Structured Emerging Markets Funds equal to 1.00% of the net asset
value of the shares purchased. See "Purchase of Shares--Fund Reimbursement
Fees." The minimum initial investment for shares of either class is $5 million,
subject to certain exceptions described under "Purchase of Shares." Shares of
either class may also be offered to clients of the Adviser and its affiliates.
Shares of the Micro-Cap Growth and Small-Cap Growth Funds are normally not
available for purchase by new investors, although purchase orders may be
accepted in certain circumstances. Existing shareholders may continue to invest
in these Funds. These restrictions may be changed or eliminated at any time at
the discretion of the Trust's Board of Trustees. See "Purchase of Shares."
[Also, as noted above under "Investment Adviser and Portfolio Managers," it is
anticipated that the Emerging Markets and International Developed Funds will
reorganize as series of another mutual fund family on or about March 31, 1999,
and thereafter would not be offered as series of the Trust. See "Management of
the Trust--Portfolio Managers--Blairlogie."]     
- --------------------------------------------------------------------------------

                                                    April  , 1999 Prospectus   7
<PAGE>
 
                         PROSPECTUS SUMMARY (continued)

- --------------------------------------------------------------------------------
                           Redemptions and Exchanges
 
  Institutional Class and Administrative Class shares of each Fund may be
redeemed without cost (except as noted below) at the relevant net asset value
per share of the class of that Fund next determined after receipt of the
redemption request. The redemption price may be more or less than the purchase
price.
 
  Institutional Class and Administrative Class shares of any Fund may be
exchanged without cost (except as noted below) on the basis of relative net
asset values for shares of the same class of any other Fund or other series of
the Trust offered generally to the public, or for shares of the same class of a
series of PIMCO Funds: Pacific Investment Management Series, an affiliated
mutual fund family composed primarily of fixed income portfolios managed by
Pacific Investment Management. See "Redemption of Shares."
 
  A Fund Reimbursement Fee is normally charged on redemptions and exchanges
involving Institutional Class and Administrative Class shares of the Structured
Emerging Markets and Tax-Efficient Structured Emerging Markets Funds equal to
1.00% of the net asset value of the shares redeemed or exchanged. See
"Redemption of Shares."

- --------------------------------------------------------------------------------

8   PIMCO Funds: Multi-Manager Series

<PAGE>
 
                              EXPENSE INFORMATION
- ------------------------------------------------------------------------------- 
Shareholder Transaction Expenses (Institutional Class and Administrative
Class):
 
<TABLE>
<S>                                                                      <C>
  Sales Load Imposed on Purchases....................................... None
  Sales Load Imposed on Reinvested Dividends............................ None
  Redemption Fee........................................................ None
  Exchange Fee.......................................................... None
  Fund Reimbursement Fee Imposed on Purchases, Redemptions and
   Exchanges:
   Structured Emerging Markets and Tax-Efficient Structured Emerging
    Markets Funds....................................................... 1.00%*
   All Other Funds...................................................... None
</TABLE>
 
   * Unless a waiver applies, investors are charged a "Fund Reimbursement Fee"
   in connection with purchases and redemptions involving Institutional Class
   and Administrative Class shares of the Structured Emerging Markets and Tax-
   Efficient Structured Emerging Markets Funds equal to 1.00% of the net asset
   value of the shares purchased or redeemed. The fee also applies to
   exchanges involving these Funds. See "Purchase of Shares--Fund
   Reimbursement Fees" and "Redemption of Shares."
 
Annual Fund Operating Expenses (as a percentage of average daily net assets):
 
<TABLE>   
<CAPTION>
                                               Advisory Administrative  Total
   Institutional Class Shares                    Fee         Fee       Expenses
   --------------------------                  -------- -------------- --------
   <S>                                         <C>      <C>            <C>
   Growth Fund................................   0.50%       0.25%       0.75%
   Target Fund................................   0.55        0.25        0.80
   Opportunity Fund...........................   0.65        0.25        0.90
   Innovation Fund............................   0.65        0.25        0.90
   Emerging Markets Fund......................   0.85        0.50        1.35
   International Developed Fund...............   0.60        0.50        1.10
   International Fund.........................   0.55        0.50        1.05
   Capital Appreciation Fund..................   0.45        0.25        0.70
   Mid-Cap Growth Fund........................   0.45        0.25        0.70
   Micro-Cap Growth Fund......................   1.25        0.25        1.50
   Small-Cap Growth Fund......................   1.00        0.25        1.25
   Renaissance Fund...........................   0.60        0.25        0.85
   Core Equity Fund...........................   0.57        0.25        0.82
   Mid-Cap Equity Fund........................   0.63        0.25        0.88
   International Growth Fund..................   0.85        0.50        1.35
   Equity Income Fund.........................   0.45        0.25        0.70
   Value Fund.................................   0.45        0.25        0.70
   Value 25 Fund..............................   0.50        0.25        0.75
   Small-Cap Value Fund.......................   0.60        0.25        0.85
   Enhanced Equity Fund.......................   0.45        0.25        0.70
   Structured Emerging Markets Fund...........   0.45        0.50        0.95
   Tax-Efficient Structured Emerging Markets
    Fund......................................   0.45        0.50        0.95
   Tax-Efficient Equity Fund..................   0.45        0.25        0.70
   Balanced Fund..............................   0.45        0.25        0.70
</TABLE>    
 
<TABLE>   
<CAPTION>
                                                               Service/
                                       Advisory Administrative  12b-1    Total
   Administrative Class Shares           Fee         Fee         Fee    Expenses
   ---------------------------         -------- -------------- -------- --------
   <S>                                 <C>      <C>            <C>      <C>
   Growth Fund........................   0.50%       0.25%       0.25%    1.00%
   Target Fund........................   0.55        0.25        0.25     1.05
   Opportunity Fund...................   0.65        0.25        0.25     1.15
   Innovation Fund....................   0.65        0.25        0.25     1.15
   Emerging Markets Fund..............   0.85        0.50        0.25     1.60
   International Developed Fund.......   0.60        0.50        0.25     1.35
   International Fund.................   0.55        0.50        0.25     1.30
   Capital Appreciation Fund..........   0.45        0.25        0.25     0.95
   Mid-Cap Growth Fund................   0.45        0.25        0.25     0.95
   Micro-Cap Growth Fund..............   1.25        0.25        0.25     1.75
   Small-Cap Growth Fund..............   1.00        0.25        0.25     1.50
   Renaissance Fund...................   0.60        0.25        0.25     1.10
   Core Equity Fund...................   0.57        0.25        0.25     1.07
   Mid-Cap Equity Fund................   0.63        0.25        0.25     1.13
   International Growth Fund..........   0.85        0.50        0.25     1.60
   Equity Income Fund ................   0.45        0.25        0.25     0.95
   Value Fund.........................   0.45        0.25        0.25     0.95
   Value 25 Fund......................   0.50        0.25        0.25     1.00
</TABLE>    
- --------------------------------------------------------------------------------

                                                    April  , 1999 Prospectus   9
<PAGE>
 
                        EXPENSE INFORMATION (continued)
   
Annual Fund Operating Expenses (continued):     
<TABLE>
<CAPTION>
                                                              Service/
                                      Advisory Administrative  12b-1    Total
   Administrative Class Shares          Fee         Fee         Fee    Expenses
   ---------------------------        -------- -------------- -------- --------
   <S>                                <C>      <C>            <C>      <C>
   Small-Cap Value Fund..............   0.60%       0.25%       0.25%    1.10%
   Enhanced Equity Fund..............   0.45        0.25        0.25     0.95
   Structured Emerging Markets Fund..   0.45        0.50        0.25     1.20
   Tax-Efficient Structured Emerging
    Markets Fund.....................   0.45        0.50        0.25     1.20
   Tax-Efficient Equity Fund.........   0.45        0.25        0.25     0.95
   Balanced Fund.....................   0.45        0.25        0.25     0.95
</TABLE>
 
  For a more detailed discussion of the Funds' fees and expenses, see "Fund
Administrator," "Advisory and Administrative Fees," and "Service and
Distribution Fees" under the caption "Management of the Trust."
 
Example of Fund Expenses:
  An investor would pay the following expenses on a $1,000 investment assuming
(1) a hypothetical 5% annual return and (2) redemption at the end of each time
period:
 
<TABLE>   
<CAPTION>
   Institutional Class Shares                   1 year 3 years 5 years 10 years
   --------------------------                   ------ ------- ------- --------
   <S>                                          <C>    <C>     <C>     <C>
   Growth Fund.................................  $ 8     $24     $42     $ 93
   Target Fund.................................    8      26      44       99
   Opportunity Fund............................    9      29      50      111
   Innovation Fund.............................    9      29      50      111
   Emerging Markets Fund.......................   14      43      74      162
   International Developed Fund................   11      35      61      134
   International Fund..........................   11      33      58      128
   Capital Appreciation Fund...................    7      22      39       87
   Mid-Cap Growth Fund.........................    7      22      39       87
   Micro-Cap Growth Fund.......................   15      47      82      179
   Small-Cap Growth Fund.......................   13      40      69      151
   Renaissance Fund............................    9      27      47      105
   Core Equity Fund............................    8      26      46      101
   Mid-Cap Equity Fund.........................    9      28      49      108
   International Growth Fund...................   14      43      74      162
   Equity Income Fund..........................    7      22      39       87
   Value Fund..................................    7      22      39       87
   Value 25 Fund...............................    8      24      --       --
   Small-Cap Value Fund........................    9      27      47      105
   Enhanced Equity Fund........................    7      22      39       87
   Structured Emerging Markets Fund*...........   29      50      --       --
   Tax-Efficient Structured Emerging Markets
    Fund*......................................   29      50      --       --
   Tax-Efficient Equity Fund...................    7      22      --       --
   Balanced Fund...............................    7      22      39       87
<CAPTION>
   Administrative Class Shares                  1 year 3 years 5 years 10 years
   ---------------------------                  ------ ------- ------- --------
   <S>                                          <C>    <C>     <C>     <C>
   Growth Fund.................................  $10     $32     $55     $122
   Target Fund.................................   11      33      58      128
   Opportunity Fund............................   12      37      63      140
   Innovation Fund.............................   12      37      63      140
   Emerging Markets Fund.......................   16      50      87      190
   International Developed Fund................   14      43      74      163
   International Fund..........................   13      41      71      157
   Capital Appreciation Fund...................   10      30      53      117
   Mid-Cap Growth Fund.........................   10      30      53      117
   Micro-Cap Growth Fund.......................   18      55      95      206
   Small-Cap Growth Fund.......................   15      47      82      179
   Renaissance Fund............................   11      35      61      134
   Core Equity Fund............................   11      34      59      131
</TABLE>    
 
10  PIMCO Funds: Multi-Manager Series
<PAGE>
 
       
                        EXPENSE INFORMATION (continued)
   
Example of Fund Expenses (continued):     
 
<TABLE>   
<CAPTION>
   Administrative Class Shares                  1 year 3 years 5 years 10 years
   ---------------------------                  ------ ------- ------- --------
   <S>                                          <C>    <C>     <C>     <C>
   Mid-Cap Equity Fund ........................  $12     $36     $62     $137
   International Growth Fund...................   16      50      87      190
   Equity Income Fund..........................   10      30      53      117
   Value Fund..................................   10      30      53      117
   Value 25 Fund...............................   10      32      --       --
   Enhanced Equity Fund........................   10      30      53      117
   Structured Emerging Markets Fund*...........   32      58      --       --
   Tax-Efficient Structured Emerging Markets
    Fund*......................................   32      58      --       --
   Tax-Efficient Equity Fund...................   10      30      --       --
   Balanced Fund...............................   10      30      53      117
</TABLE>    
   * The Examples for the Structured Emerging Markets and Tax-Efficient
   Structured Emerging Markets Funds assume the payment of a Fund
   Reimbursement Fee both at the time of purchase and at the time of
   redemption even though such fees may be waived for certain investors. See
   "Purchase of Shares--Fund Reimbursement Fees" and "Redemption of Shares."
   Assuming there is no redemption at the end of the time periods listed, the
   Examples for 1 year and 3 years, respectively, for the Structured Emerging
   Markets and Tax-Efficient Structured Emerging Markets Funds would be as
   follows: Institutional Class Shares--$20 and $40; and Administrative Class
   Shares--$22 and $48.
 
  The above tables are provided to assist investors in understanding the
various expenses which may be borne directly or indirectly in connection with
an investment in the Funds. The information is based upon each Fund's current
fees and expenses. This example should not be considered a representation of
past or future expenses or performance. Actual expenses may be higher or lower
than those shown.
                                                April  , 1999 Prospectus    11
<PAGE>
 
                             FINANCIAL HIGHLIGHTS
   
The financial highlights set forth on the following pages present certain
information and ratios as well as performance information for the Funds that
were operational during the periods listed. Certain information provided below
is included in the June 30, 1998 PIMCO Funds Annual Report (relating to
Institutional Class and Administrative Class shares) and has been audited by
PricewaterhouseCoopers LLP, independent accountants, whose report thereon is
also included in such Annual Report. The Annual Report is incorporated by
reference in the Statement of Additional Information and may be obtained from
the Trust without charge. Financial statements and related notes are also
incorporated by reference in the Statement of Additional Information. The
Growth, Target, Opportunity, Innovation, International, Value 25, Structured
Emerging Markets, Tax-Efficient Structured Emerging Markets, and Tax-Efficient
Equity Funds did not offer Institutional or Administrative Class Shares during
the reporting periods through June 30, 1998. Prior to November 1, 1995, the
fiscal year end for each Fund listed below was October 31. [Unaudited
financial information for the period ended December 31, 1998 to be included in
a Post-Effective Amendment filed prior to the effective date of this
Amendment.]     
  Selected data for a share outstanding throughout each period:
 
<TABLE>
<CAPTION>
                         Net Asset                Net Realized/     Total    Dividends  Dividends in  Distributions
                           Value        Net         Unrealized   Income from  from Net  Excess of Net   from Net
                         Beginning  Investment    Gain (Loss) on Investment  Investment  Investment     Realized
                         of Period Income (Loss)   Investments   Operations    Income      Income     Capital Gains
- -------------------------------------------------------------------------------------------------------------------
<S>                      <C>       <C>            <C>            <C>         <C>        <C>           <C>
Emerging Markets Fund
 Institutional Class
  06/30/98                $13.96      $ 0.06 (a)      $(3.84)(a)   $(3.78)     $ 0.00      $ 0.00        $ 0.00
  06/30/97                 12.66        0.06 (a)        1.30 (a)     1.36       (0.06)       0.00          0.00
  11/01/95-06/30/96        11.27        0.03            1.40         1.43       (0.04)       0.00          0.00
  10/31/95                 16.53        0.07           (4.55)       (4.48)      (0.06)       0.00         (0.72)
  10/31/94                 12.27       (0.01)           4.45         4.44        0.00        0.00         (0.18)
  06/01/93-10/31/93        10.00        0.03            2.52         2.55       (0.02)       0.00         (0.26)
 Administrative Class
  06/30/98                 13.95        0.09 (a)       (3.90)(a)    (3.81)       0.00        0.00          0.00
  06/30/97                 12.63        0.00 (a)        1.32 (a)     1.32        0.00        0.00          0.00
  11/01/95-06/30/96        11.24        0.02 (a)        1.40 (a)     1.42       (0.03)       0.00          0.00
  10/31/95                 16.95        0.00           (4.95)       (4.95)      (0.05)       0.00         (0.71)
International Developed
 Fund (i)
 Institutional Class
  06/30/98                $13.12      $ 0.16 (a)      $ 1.73 (a)   $ 1.89      $(0.11)     $ 0.00        $(0.58)
  06/30/97                 12.54        0.10 (a)        1.09 (a)     1.19        0.00        0.00         (0.61)
  11/01/95-06/30/96        11.74        0.72            0.72         1.44       (0.07)      (0.36)        (0.21)
  10/31/95                 11.86        0.10            0.30         0.40       (0.09)       0.00         (0.43)
  10/31/94                 10.69        0.09            1.15         1.24       (0.03)       0.00         (0.04)
  06/08/93-10/31/93        10.00        0.05            0.69         0.74       (0.04)       0.00         (0.01)
 Administrative Class
  06/30/98                 13.05        0.17 (a)        1.69 (a)     1.86       (0.03)       0.00         (0.58)
  06/30/97                 12.51        0.06 (a)        1.09 (a)     1.15        0.00        0.00         (0.61)
  11/01/95-06/30/96        11.73        0.69 (a)        0.72 (a)     1.41       (0.07)      (0.35)        (0.21)
  11/30/94-10/31/95        11.21        0.02            1.01         1.03       (0.08)       0.00          0.43)
Capital Appreciation
 Fund
 Institutional Class
  06/30/98                $21.19      $ 0.15 (a)      $ 6.59 (a)   $ 6.74      $(0.12)     $ 0.00        $(1.68)
  06/30/97                 18.10        0.24            5.08         5.32       (0.10)       0.00         (2.13)
  11/01/95-06/30/96        16.94        0.35            1.99         2.34       (0.15)       0.00         (1.03)
  10/31/95                 13.34        0.18            3.60         3.78       (0.18)       0.00          0.00
  10/31/94                 13.50        0.14           (0.12)        0.02       (0.14)       0.00         (0.04)
  10/31/93                 11.27        0.11            2.73         2.84       (0.11)       0.00         (0.50)
  10/31/92                 11.02        0.14            1.05         1.19       (0.14)       0.00         (0.72)
  03/08/91-10/31/91        10.00        0.09            1.02         1.11       (0.09)       0.00          0.00
 Administrative Class
  06/30/98                 21.16        0.10 (a)        6.55 (a)     6.65       (0.14)       0.00         (1.68)
  07/31/96-06/30/97        17.19        0.16            6.03         6.19       (0.09)       0.00         (2.13)
Mid-Cap Growth Fund
 Institutional Class
  06/30/98                $20.28      $ 0.11 (a)      $ 5.11 (a)   $ 5.22      $(0.07)     $(0.01)       $(1.33)
  06/30/97                 19.44       (0.07)           5.25         5.18       (0.05)       0.00         (4.29)
  11/01/95-06/30/96        18.16        0.32            1.53         1.85       (0.14)       0.00         (0.43)
  10/31/95                 13.97        0.07            4.19         4.26       (0.07)       0.00          0.00
  10/31/94                 13.97        0.06            0.01         0.07       (0.06)       0.00         (0.01)
  10/31/93                 11.29        0.07            2.70         2.77       (0.07)       0.00         (0.02)
  10/31/92                 10.28        0.10            1.03         1.13       (0.10)       0.00          0.00
  08/26/91-10/31/91        10.00        0.02            0.27         0.29       (0.01)       0.00          0.00
 Administrative Class
  06/30/98                 20.24        0.05 (a)        5.08 (a)     5.13       (0.07)      (0.01)        (1.33)
  06/30/97                 19.44       (0.13)           5.25         5.12       (0.03)       0.00         (4.29)
  11/01/95-06/30/96        18.17        0.28            1.53         1.81       (0.11)       0.00         (0.43)
  11/30/94-10/31/95        13.31        0.03            4.85         4.88       (0.02)       0.00          0.00
</TABLE>
 
- --------
  *Annualized
 (a)Per share amounts based on average number of shares outstanding during the
    period.
 (i)Formerly the Blairlogie International Active Fund.
 
12  PIMCO Funds: Multi-Manager Series
<PAGE>
 
                        FINANCIAL HIGHLIGHTS (continued)
 
 
<TABLE>
<CAPTION>
                                                                                                      Ratio of Net
Distributions                                                                              Ratio of    Investment
in Excess of   Distributions Tax Basis               Net Asset               Net Assets   Expenses to Income (Loss)
Net Realized       from      Return of     Total     Value End                 End of     Average Net  to Average     Portfolio
Capital Gains  Equalization   Capital  Distributions of Period Total Return Period (000s)   Assets     Net Assets   Turnover Rate
- ---------------------------------------------------------------------------------------------------------------------------------
<S>            <C>           <C>       <C>           <C>       <C>          <C>           <C>         <C>           <C>
    $0.00         $ 0.00       $0.00      $ 0.00      $10.18      (27.08)%    $ 24,251       1.39%         0.52%          52%
     0.00           0.00        0.00       (0.06)      13.96       10.85        52,703       1.45          0.45           74
     0.00           0.00        0.00       (0.04)      12.66       12.70        80,545       1.35*         0.84*          74
     0.00           0.00        0.00       (0.78)      11.27      (27.70)       73,539       1.35          0.57          118
     0.00           0.00        0.00       (0.18)      16.53       36.31        79,620       1.35         (0.06)          79
     0.00           0.00        0.00       (0.28)      12.27       25.55        14,625       1.34*         0.64*          37

     0.00           0.00        0.00        0.00       10.14      (27.31)        1,339       1.65          0.81           52
     0.00           0.00        0.00        0.00       13.95       10.45           117       1.69          0.02           74
     0.00           0.00        0.00       (0.03)      12.63       12.70           368       1.61*         0.18*          74
     0.00           0.00        0.00       (0.76)      11.24      (27.96)          830       1.62          0.02          118

    $0.00         $ 0.00       $0.00      $(0.69)     $14.32       15.69%     $122,126       1.11%         1.20%          60%
     0.00           0.00        0.00       (0.61)      13.12       10.07        94,044       1.13          0.85           77
     0.00           0.00        0.00       (0.64)      12.54       12.54        70,207       1.10*         0.81*          60
     0.00           0.00        0.00       (0.52)      11.74        3.83        63,607       1.10          1.10           63
     0.00           0.00        0.00       (0.07)      11.86       11.68        22,569       1.10          1.12           89
     0.00           0.00        0.00       (0.05)      10.69        7.39         8,299       1.10*         0.91*          20

     0.00           0.00        0.00       (0.61)      14.30       15.33         6,299       1.36          1.31           60
     0.00           0.00        0.00       (0.61)      13.05        9.77         2,302       1.38          0.52           77
     0.00           0.00        0.00       (0.63)      12.51       12.33         5,624       1.35*         1.04*          60
     0.00           0.00        0.00       (0.51)      11.73        9.61           675       1.34*         0.50*          58

    $0.00         $ 0.00       $0.00      $(1.80)     $26.13       32.97%     $805,856       0.71%         0.64%          75%
     0.00           0.00        0.00       (2.23)      21.19       31.52       536,187       0.71          1.02           87
     0.00           0.00        0.00       (1.18)      18.10       14.65       348,728       0.70*         1.33*          73
     0.00           0.00        0.00       (0.18)      16.94       28.47       236,220       0.70          1.22           83
     0.00           0.00        0.00       (0.18)      13.34        0.15       165,441       0.70          1.17           77
     0.00           0.00        0.00       (0.61)      13.50       25.30        84,990       0.70          0.94           81
     0.00          (0.08)       0.00       (0.94)      11.27       10.75        36,334       0.70          1.13          134
     0.00           0.00        0.00       (0.09)      11.02       11.19        18,813       0.75*         1.55*          41
     0.00           0.00        0.00       (1.82)      25.99       32.55       132,384       0.96          0.39           75
     0.00           0.00        0.00       (2.22)      21.16       38.26         3,115       0.96*         0.66*          87

    $0.00         $ 0.00       $0.00      $(1.41)     $24.09       26.16%     $437,985       0.71%         0.46%          66%
     0.00           0.00        0.00       (4.34)      20.28       30.58       291,374       0.71          0.53           82
     0.00           0.00        0.00       (0.57)      19.44       10.37       231,011       0.70*         1.11*          79
     0.00           0.00        0.00       (0.07)      18.16       30.54       189,320       0.70          0.43           78
     0.00           0.00        0.00       (0.07)      13.97        0.58       121,791       0.70          0.45           61
     0.00           0.00        0.00       (0.09)      13.97       24.57        67,625       0.70          0.56           98
     0.00          (0.02)       0.00       (0.12)      11.29       10.91        21,213       0.70          0.87           66
     0.00           0.00        0.00       (0.01)      10.28        2.98         2,748       0.82*         0.92*          13
     0.00           0.00        0.00       (1.41)      23.96       25.75        73,614       0.95          0.22           66
     0.00           0.00        0.00       (4.32)      20.24       30.23         2,066       0.96          0.28           82
     0.00           0.00        0.00       (0.54)      19.44       10.17         1,071       0.95*         0.89*          79
     0.00           0.00        0.00       (0.02)      18.17       36.64           892       0.94*         0.23*          72
</TABLE>

                                                   April  , 1999 Prospectus   13
<PAGE>
 
                        FINANCIAL HIGHLIGHTS (continued)
 
<TABLE>
<CAPTION>
 
                       Net Asset                Net Realized/     Total    Dividends  Dividends in  Distributions
                         Value        Net         Unrealized   Income from  from Net  Excess of Net   from Net
                       Beginning  Investment    Gain (Loss) on Investment  Investment  Investment     Realized
                       of Period Income (Loss)   Investments   Operations    Income      Income     Capital Gains
- -----------------------------------------------------------------------------------------------------------------
<S>                    <C>       <C>            <C>            <C>         <C>        <C>           <C>
Micro-Cap Growth Fund
 Institutional Class
  06/30/98              $19.85      $(0.11)(a)      $ 6.54 (a)   $ 6.43      $0.00       $ 0.00        $(2.62)
  06/30/97               18.47        0.00            3.41         3.41       0.00         0.00         (2.03)
  11/01/95-06/30/96      15.38        0.00            3.43         3.43       0.00         0.00         (0.34)
  10/31/95               11.87       (0.04)           3.55         3.51       0.00         0.00          0.00
  10/31/94               11.06       (0.03)           0.84         0.81       0.00         0.00          0.00
  06/25/93-10/31/93      10.00        0.00            1.07         1.07       0.00         0.00          0.00
 Administrative Class
  06/30/98               19.78       (0.17)(a)        6.53 (a)     6.36       0.00         0.00         (2.62)
  06/30/97               18.46       (0.06)           3.41         3.35       0.00         0.00         (2.03)
  04/01/96-06/30/96      16.73        0.03            1.70         1.73       0.00         0.00          0.00
Small-Cap Growth Fund
 Institutional Class
  06/30/98              $13.40      $(0.03)(a)      $ 2.52 (a)   $ 2.49      $0.00       $ 0.00        $(1.88)
  06/30/97               20.83       (0.01)(a)        3.17 (a)     3.16       0.00         0.00        (10.59)
  11/01/95-06/30/96      21.02        2.02           (0.61)        1.41       0.00         0.00         (1.60)
  10/31/95               19.38       (0.05)           3.12         3.07       0.00         0.00         (1.43)
  10/31/94               19.15       (0.02)           0.89         0.87       0.00         0.00         (0.64)
  10/31/93               15.80       (0.06)           6.19         6.13       0.00         0.00         (2.78)
  10/31/92               14.87        0.01            1.50         1.51      (0.01)        0.00         (0.57)
  01/07/91-10/31/91      10.00        0.02            5.03         5.05      (0.02)        0.00         (0.16)
 Administrative Class
  06/30/98               13.41        0.07 (a)        2.51 (a)     2.44       0.00         0.00         (1.88)
  06/30/97               20.82       (0.06)(a)        3.24 (a)     3.18       0.00         0.00        (10.59)
  11/01/95-06/30/96      21.01        2.02 (a)       (0.61)(a)     1.41       0.00         0.00         (1.60)
  09/27/95-10/31/95      21.90       (0.02)          (0.87)       (0.89)      0.00         0.00          0.00
Renaissance Fund
 Institutional Class
  12/31/97-06/30/98     $16.73      $ 0.05          $ 2.29       $ 2.34      $0.00       $ 0.00        $ 0.00
Core Equity Fund
 Institutional Class
  06/30/98              $15.55      $ 0.03 (a)      $ 6.11 (a)   $ 6.14      $0.00       $ 0.00        $(1.30)
  06/30/97               13.55        0.03 (a)        2.78 (a)     2.81      (0.02)        0.00         (0.79)
  11/01/95-06/30/96      12.72        0.51            0.65         1.16      (0.04)       (0.01)        (0.28)
  12/28/94-10/31/95      10.00        0.07            2.71         2.78      (0.06)        0.00          0.00
 Administrative Class
  06/30/98               15.53        0.01 (a)        6.10 (a)     6.09       0.00         0.00         (1.30)
  06/30/97               13.56        0.00 (a)        2.77 (a)     2.77      (0.01)        0.00         (0.79)
  11/01/95-06/30/96      12.73        0.49            0.65         1.14      (0.02)       (0.01)        (0.28)
  05/31/95-10/31/95      11.45        0.02            1.28         1.30      (0.02)        0.00          0.00
Mid-Cap Equity Fund
 Institutional Class
  06/30/98              $14.04      $(0.03)(a)      $ 3.61 (a)   $ 3.58      $0.00       $ 0.00        $(4.09)
  06/30/97               14.66       (0.06)(a)        1.31 (a)     1.25       0.00         0.00         (1.87)
  11/01/95-06/30/96      12.92        0.49            1.62         2.11       0.00         0.00         (0.37)
  12/28/94-10/31/95      10.00        0.02            2.92         2.94      (0.02)        0.00          0.00
 Administrative Class
  08/21/97-06/30/98      15.27       (0.05)(a)        2.37 (a)     2.32       0.00         0.00         (4.09)
International Growth
 Fund
 Institutional Class
  12/31/97-06/30/98     $10.00      $ 0.00 (a)      $ 3.55 (a)   $ 3.55      $0.00       $ 0.00        $ 0.00
</TABLE>
- --------
 * Annualized
   (a) Per share amounts based on average number of shares outstanding during
       the period.
 
14   PIMCO Funds: Multi-Manager Series
<PAGE>
 
                        FINANCIAL HIGHLIGHTS (continued)
 
<TABLE>
<CAPTION>
                                                                                                      Ratio of Net
Distributions                                                                              Ratio of    Investment
in Excess of   Distributions Tax Basis               Net Asset               Net Assets   Expenses to Income (Loss)
Net Realized       from      Return of     Total     Value End                 End of     Average Net  to Average     Portfolio
Capital Gains  Equalization   Capital  Distributions of Period Total Return Period (000s)   Assets     Net Assets   Turnover Rate
- ---------------------------------------------------------------------------------------------------------------------------------
<S>            <C>           <C>       <C>           <C>       <C>          <C>           <C>         <C>           <C>
    $0.00          $0.00       $0.00      $ (2.62)    $23.66      33.95%      $257,842       1.51%        (0.50)%         72%
     0.00           0.00        0.00        (2.03)     19.85      20.05        164,139       1.52         (0.49)          84
     0.00           0.00        0.00        (0.34)     18.47      22.64         83,973       1.50*        (0.45)*         54
     0.00           0.00        0.00         0.00      15.38      29.54         69,775       1.50         (0.37)          87
     0.00           0.00        0.00         0.00      11.87       7.31         32,605       1.50         (0.25)          59
     0.00           0.00       (0.01)       (0.01)     11.06      10.81         10,827       1.50*        (0.02)*         16

     0.00           0.00        0.00        (2.62)     23.52      33.70          4,779       1.76         (0.74)          72
     0.00           0.00        0.00        (2.03)     19.78      19.72          2,116       1.77         (0.74)          84
     0.00           0.00        0.00         0.00      18.46      10.34            566       1.73*        (0.74)*         54

    $0.00          $0.00       $0.00      $ (1.88)    $14.01      19.33%      $ 47,641       1.26%        (0.20)%         77%
     0.00           0.00        0.00       (10.59)     13.40      22.82         33,390       1.32         (0.05)         129
     0.00           0.00        0.00        (1.60)     20.83       7.22         32,954       1.25*        (0.20)*         59
     0.00           0.00        0.00        (1.43)     21.02      17.39         73,977       1.25         (0.27)          86
     0.00           0.00        0.00        (0.64)     19.38       4.62         50,425       1.25         (0.33)          66
     0.00           0.00        0.00        (2.78)     19.15      38.80         43,308       1.25         (0.35)          62
     0.00           0.00        0.00        (0.58)     15.80      10.20         33,734       1.25         0.09            66
     0.00           0.00        0.00        (0.18)     14.87      50.68         33,168       1.29*        0.11*           48

     0.00           0.00        0.00        (1.88)     13.97      18.90            981       1.49         (0.51)          77
     0.00           0.00        0.00       (10.59)     13.41      23.12              1       1.54         (0.36)         129
     0.00           0.00        0.00        (1.60)     20.82       7.18            112       1.50*        (0.41)*         59
     0.00           0.00        0.00         0.00      21.01      (5.34)           544       1.60*        (0.82)*          9

    $0.00          $0.00       $0.00      $  0.00     $19.07      13.99%      $    851       0.86%*       0.55%*         192%

    $0.00          $0.00       $0.00      $ (1.30)    $20.39      41.83%      $  1,915       0.83%        0.20%          120%
     0.00           0.00        0.00        (0.81)     15.55      21.59          6,444       0.87         0.23           139
     0.00           0.00        0.00        (0.33)     13.55       9.41         10,452       0.82*        0.53*           73
     0.00           0.00        0.00        (0.06)     12.72      27.86          7,791       0.82*        0.79*          123

     0.00           0.00        0.00        (1.30)     20.32      41.54        128,666       1.08         (0.07)         120
     0.00           0.00        0.00        (0.80)     15.53      21.20         29,332       1.13         (0.03)         139
     0.00           0.00        0.00        (0.31)     13.56       9.23         33,575       1.07*        0.28 *          73
     0.00           0.00        0.00        (0.02)     12.73      11.34         24,645       1.06*        0.34 *          58

    $0.00          $0.00       $0.00      $ (4.09)    $13.53      30.40%      $  8,488       0.89%        (0.25)%        268%
     0.00           0.00        0.00        (1.87)     14.04       9.61          7,591       1.15         (0.43)         202
     0.00           0.00        0.00        (0.37)     14.66      16.72          8,378       0.88*        (0.32)*         97
     0.00           0.00        0.00        (0.02)     12.92      29.34          8,357       0.88*        0.24 *         132

     0.00           0.00        0.00        (4.09)     13.50      19.65          2,371       1.13*        (0.49)*        268
    $0.00          $0.00       $0.00      $  0.00     $13.55      35.50%      $  6,822       1.36%*       0.08%*          60%
</TABLE>

                                                   April  , 1999 Prospectus   15
<PAGE>
 
                        FINANCIAL HIGHLIGHTS (continued)
 
<TABLE>
<CAPTION>
 
                      Net Asset               Net Realized/     Total    Dividends  Dividends in  Distributions
                        Value        Net        Unrealized   Income from  from Net  Excess of Net   from Net
                      Beginning  Investment   Gain (Loss) on Investment  Investment  Investment     Realized
                      of Period Income (Loss)  Investments   Operations    Income      Income     Capital Gains
- ---------------------------------------------------------------------------------------------------------------
<S>                   <C>       <C>           <C>            <C>         <C>        <C>           <C>
Equity Income Fund
 Institutional Class
  06/30/98             $15.41       $0.44 (a)     $ 2.75 (a)   $ 3.19      $(0.42)      $0.00        $(2.09)
  06/30/97              14.36        0.40           3.17         3.57       (0.55)       0.00         (1.97)
  11/01/95-06/30/96     13.09        0.78           1.31         2.09       (0.34)       0.00         (0.48)
  10/31/95              11.75        0.46           1.67         2.13       (0.46)       0.00         (0.33)
  10/31/94              11.95        0.42          (0.16)        0.26       (0.42)       0.00         (0.04)
  10/31/93              10.92        0.40           1.40         1.80       (0.40)       0.00         (0.37)
  10/31/92              10.77        0.45           0.93         1.38       (0.43)       0.00         (0.57)
  03/08/91-10/31/91     10.00        0.24           0.92         1.16       (0.24)       0.00         (0.15)
 Administrative Class
  06/30/98              15.40        0.40 (a)       2.75 (a)     3.15       (0.38)       0.00         (2.09)
  06/30/97              14.35        0.27           3.26         3.53       (0.51)       0.00         (1.97)
  11/01/95-06/30/96     13.13        0.75           1.31         2.06       (0.36)       0.00         (0.48)
  11/30/94-10/31/95     11.12        0.39           2.35         2.74       (0.40)       0.00         (0.33)
Value Fund (ii)
 Institutional Class
  06/30/98             $14.81       $0.25 (a)     $ 2.47 (a)   $ 2.72      $(0.24)      $0.00        $(1.63)
  06/30/97              12.46        1.05           2.11         3.16       (0.31)       0.00         (0.50)
  11/01/95-06/30/96     12.53        0.25           1.62         1.87       (0.17)       0.00         (1.77)
  10/31/95              11.55        0.30           2.18         2.48       (0.30)       0.00         (1.20)
  10/31/94              11.92        0.30          (0.28)        0.02       (0.29)       0.00         (0.10)
  10/31/93              10.05        0.28           2.36         2.64       (0.28)       0.00         (0.49)
  12/30/91-10/31/92     10.00        0.24           0.23         0.47       (0.24)       0.00         (0.18)
 Administrative Class
  08/21/97-06/30/98     15.66        0.19 (a)       1.65 (a)     1.84       (0.22)       0.00         (1.63)
Small-Cap Value Fund
 Institutional Class
  06/30/98             $15.78       $0.29 (a)     $ 2.50 (a)   $ 2.79      $(0.13)      $0.00        $(0.76)
  06/30/97              14.20        0.46           3.63         4.09       (0.13)       0.00         (2.38)
  11/01/95-06/30/96     13.10        0.56           1.49         2.05       (0.21)       0.00         (0.74)
  10/31/95              12.07        0.28           1.92         2.20       (0.28)       0.00         (0.89)
  10/31/94              12.81        0.29          (0.65)       (0.36)      (0.29)       0.00         (0.09)
  10/31/93              10.98        0.24           2.33         2.57       (0.24)       0.00         (0.50)
  10/31/92              10.09        0.22           1.17         1.39       (0.22)       0.00         (0.24)
  10/01/91-10/31/91     10.00        0.02           0.10         0.12       (0.03)       0.00          0.00
 Administrative Class
  06/30/98              15.76        0.25 (a)       2.49 (a)     2.74       (0.11)       0.00         (0.76)
  06/30/97              14.20        0.38           3.68         4.06       (0.12)       0.00         (2.38)
  11/01/95-06/30/96     13.16        0.54           1.43         1.97       (0.19)       0.00         (0.74)
Enhanced Equity Fund
 Institutional Class
  06/30/98             $16.46       $0.11 (a)     $ 3.91 (a)   $ 4.02      $(0.11)      $0.00        $(7.73)
  06/30/97              15.91        1.18           3.10         4.28       (0.10)       0.00         (3.63)
  11/01/95-06/30/96     14.44        0.34           1.67         2.01       (0.16)       0.00         (0.38)
  10/31/95              11.99        0.25           2.62         2.87       (0.25)       0.00         (0.17)
  10/31/94              12.08        0.25          (0.04)        0.21       (0.25)       0.00         (0.05)
  10/31/93              11.76        0.23           0.74         0.97       (0.23)       0.00         (0.42)
  10/31/92              10.80        0.16           1.06         1.22       (0.16)       0.00         (0.04)
  02/11/91-10/31/91     10.00        0.16           0.80         0.96       (0.16)       0.00          0.00
 Administrative Class
  08/21/97-06/30/98     17.53        0.05 (a)       2.85 (a)     2.90       (0.11)       0.00         (7.73)
Balanced Fund (iii)
 Institutional Class
  06/30/98             $11.42       $0.35 (a)     $ 1.81 (a)   $ 2.16      $(0.34)      $0.00        $(1.09)
  06/30/97              11.64        0.89           1.21         2.10       (0.36)       0.00         (1.96)
  11/01/95-06/30/96     11.89        0.27           0.76         1.03       (0.27)       0.00         (1.01)
  10/31/95              10.35        0.44           1.54         1.98       (0.44)       0.00          0.00
  10/31/94              10.84        0.34          (0.34)        0.00       (0.34)       0.00         (0.15)
  10/31/93              10.42        0.35           0.68         1.03       (0.35)       0.00         (0.26)
  06/25/92-10/31/92     10.00        0.12           0.52         0.64       (0.12)       0.00         (0.10)
</TABLE>
- --------
 *Annualized
   (a)  Per share amounts based on average number of shares outstanding during
        the period.
  (ii)  Formerly the NFJ Diversified Low P/E Fund.
  (iii) NFJ and Cadence began serving as Portfolio Managers of the portion of
        the Balanced Fund allocated for investment in common stocks on August
        1, 1996. Prior to August 1, 1996, a different firm served as portfolio
        manager.
 
16   PIMCO Funds: Multi-Manager Series
<PAGE>
 
                        FINANCIAL HIGHLIGHTS (continued)
 
<TABLE>
<CAPTION>
                                                                                                      Ratio of Net
Distributions                                                                              Ratio of    Investment
in Excess of   Distributions Tax Basis               Net Asset               Net Assets   Expenses to Income (Loss)
Net Realized       from      Return of     Total     Value End                 End of     Average Net  to Average     Portfolio
Capital Gains  Equalization   Capital  Distributions of Period Total Return Period (000s)   Assets     Net Assets   Turnover Rate
- ---------------------------------------------------------------------------------------------------------------------------------
<S>            <C>           <C>       <C>           <C>       <C>          <C>           <C>         <C>           <C>
    $0.00         $ 0.00       $0.00      $(2.51)     $16.09      21.84%      $138,650       0.71%        2.71%           45%
     0.00           0.00        0.00       (2.52)      15.41      27.67        121,138       0.72         3.03            45
     0.00           0.00        0.00       (0.82)      14.36      16.35        116,714       0.70*        3.41 *          52
     0.00           0.00        0.00       (0.79)      13.09      19.36        118,015       0.70         3.83            46
     0.00           0.00        0.00       (0.46)      11.75       2.25         92,365       0.70         3.77            36
     0.00           0.00        0.00       (0.77)      11.95      16.65         67,854       0.70         3.55            39
     0.00          (0.23)       0.00       (1.23)      10.92      12.89         30,506       0.70         3.83            47
     0.00           0.00        0.00       (0.39)      10.77      11.81         15,628       0.74*        4.18*           62

     0.00           0.00        0.00       (2.47)      16.08      21.58         11,699       0.96         2.45            45
     0.00           0.00        0.00       (2.48)      15.40      27.40          8,145       0.97         2.79            45
     0.00           0.00        0.00       (0.84)      14.35      16.08          6,097       0.95*        3.19 *          52
     0.00           0.00        0.00       (0.73)      13.13      25.69            140       0.95*        3.43 *          43

    $0.00         $ 0.00       $0.00      $(1.87)     $15.66      19.35%      $ 83,219       0.71%        1.59%           77%
     0.00           0.00        0.00       (0.81)      14.81      26.38         74,613       0.73         2.02            71
     0.00           0.00        0.00       (1.94)      12.46      16.24         52,727       0.70*        2.40*           29
     0.00           0.00        0.00       (1.50)      12.53      24.98         14,443       0.70         2.50            71
     0.00           0.00        0.00       (0.39)      11.55       0.15         15,442       0.70         2.34            44
     0.00           0.00        0.00       (0.77)      11.92      26.35         22,930       0.70         2.43            28
     0.00           0.00        0.00       (0.42)      10.05       4.68         18,083       0.70*        2.57*           73
     0.00           0.00        0.00       (1.85)      15.65      12.71         10,349       0.96*        1.40*           77

    $0.00         $ 0.00       $0.00      $(0.89)     $17.68      17.77%      $ 47,432       0.85%        1.65%           41%

     0.00           0.00        0.00       (2.51)      15.78      31.99         34,639       0.90         1.92            48
     0.00           0.00        0.00       (0.95)      14.20      16.35         29,017       0.85*        2.12*           35
     0.00           0.00        0.00       (1.17)      13.10      19.88         35,093       0.85         2.25            50
     0.00           0.00        0.00       (0.38)      12.07      (2.89)        31,236       0.85         2.23            48
     0.00           0.00        0.00       (0.74)      12.81      23.60         46,523       0.85         2.05            42
     0.00          (0.04)       0.00       (0.50)      10.98      13.75         18,261       0.85         2.16            27
     0.00           0.00        0.00       (0.03)      10.09       1.19          5,060       1.09*        3.06*            0

     0.00           0.00        0.00       (0.87)      17.63      17.41         10,751       1.10         1.39            41
     0.00           0.00        0.00       (2.50)      15.76      31.70          5,916       1.16         1.68            48
     0.00           0.00        0.00       (0.93)      14.20      15.64          4,433       1.10*        1.86*           35

    $0.00         $ 0.00       $0.00      $(7.84)     $12.64      32.33%      $ 36,584       0.71%        0.63%           65%
     0.00           0.00        0.00       (3.73)      16.46      31.45         44,838       0.74         1.31            91
     0.00           0.00        0.00       (0.54)      15.91      14.21         83,425       0.70*        1.58*           53
     0.00           0.00        0.00       (0.42)      14.44      24.46         73,999       0.70         1.91            21
     0.00           0.00        0.00       (0.30)      11.99       1.83         65,915       0.70         2.20            44
     0.00           0.00        0.00       (0.65)      12.08       8.20         46,724       0.70         1.89            15
     0.00          (0.06)       0.00       (0.26)      11.76      11.46         36,515       0.70         1.81            17
     0.00           0.00        0.00       (0.16)      10.80       9.59          4,451       0.73*        2.14*            0
     0.00           0.00        0.00       (7.84)      12.59      23.85         10,409       0.95*        0.47*           65

    $0.00         $ 0.00       $0.00      $(1.43)     $12.15      19.91%      $ 41,222       0.72%        2.91%          186%

     0.00           0.00        0.00       (2.32)      11.42      20.37         61,518       0.74         3.33           199
     0.00           0.00        0.00       (1.28)      11.64       9.07         82,562       0.70*        3.46*          140
     0.00           0.00        0.00       (0.44)      11.89      19.47         72,638       0.70         3.73            43
     0.00           0.00        0.00       (0.49)      10.35       0.08        130,694       0.70         3.25            47
     0.00           0.00        0.00       (0.61)      10.84      10.06        126,410       0.70         3.10            19
     0.00           0.00        0.00       (0.22)      10.42       6.40         99,198       0.70*        3.36*           39
</TABLE>

                                                   April  , 1999 Prospectus   17
<PAGE>
 
                      INVESTMENT OBJECTIVES AND POLICIES
 
  The investment objective and general investment policies of each Fund are
described below. There can be no assurance that the investment objective of
any Fund will be achieved. Because the market value of each Fund's investments
will change, the net asset value per share of each Fund also will vary.
Specific portfolio securities eligible for purchase by the Funds, investment
techniques that may be used by the Funds, and the risks associated with these
securities and techniques are described more fully under "Characteristics and
Risks of Securities and Investment Techniques" in this Prospectus and
"Investment Objectives and Policies" in the Statement of Additional
Information. For information on other investment policies of the Stock Funds,
see "Investment Objectives and Policies--Stock Funds." This information is
also relevant to an investment in the Balanced Fund because the Common Stock
Segment (as described below) of that Fund is managed in accordance with the
investment policies of the Value and Capital Appreciation Funds.
   
  Growth Fund seeks long-term growth of capital. Income is an incidental
consideration. The Fund invests primarily in common stocks of companies with
market capitalizations of at least $5 billion at the time of investment. The
Fund may invest a portion of its assets in securities of foreign issuers
traded in foreign securities markets (not including Eurodollar certificates of
deposit), which will not exceed 15% of the Fund's assets at the time of
investment. Investing in the securities of foreign issuers involves special
risks and considerations not typically associated with investing in U.S.
companies. For a discussion of such risks, see "Characteristics and Risks of
Securities and Investment Techniques--Foreign Securities." The Fund may also
purchase and write call and put options on securities and securities indexes;
enter into futures contracts and use options on futures contracts; buy or sell
foreign currencies; and enter into forward foreign currency contracts. The
Portfolio Manager for the Growth Fund is the PIMCO Equity Advisors Division of
PIMCO Advisors.     
   
  Target Fund seeks capital appreciation. No consideration is given to income.
The Fund invests primarily in common stocks of companies with market
capitalizations of between $1 billion and $10 billion at the time of
investment. The Fund may invest a portion of its assets in securities of
foreign issuers traded in foreign securities markets (not including Eurodollar
certificates of deposit), which will not exceed 15% of the Fund's assets at
the time of investment. Investing in the securities of foreign issuers
involves special risks and considerations not typically associated with
investing in U.S. companies. For a discussion of such risks, see
"Characteristics and Risks of Securities and Investment Techniques--Foreign
Securities." The Fund may also purchase and write call and put options on
securities and securities indexes; enter into futures contracts and use
options on futures contracts; buy or sell foreign currencies; and enter into
forward foreign currency contracts. The Portfolio Manager for the Target Fund
is the PIMCO Equity Advisors Division of PIMCO Advisors.     
   
  Opportunity Fund seeks capital appreciation. No consideration is given to
income. The Fund invests primarily in common stocks of companies with market
capitalizations of less than $2 billion at the time of investment. The Fund is
intended for aggressive investors seeking above-average gains and willing to
accept the greater risks associated therewith.     
   
  The Fund may invest a portion of its assets in securities of foreign issuers
traded in foreign securities markets (not including Eurodollar certificates of
deposit), which will not exceed 15% of the Fund's assets at the time of
investment. Investing in the securities of foreign issuers involves special
risks and considerations not typically associated with investing in U.S.
companies. For a discussion of such risks, see "Characteristics and Risks of
Securities and Investment Techniques--Foreign Securities." The Fund may also
purchase and write call and put options on securities and securities     
 
18  PIMCO Funds: Multi-Manager Series
<PAGE>
 
   
indexes; enter into futures contracts and use options on futures contracts;
buy or sell foreign currencies; and enter into forward foreign currency
contracts. The Portfolio Manager for the Opportunity Fund is the PIMCO Equity
Advisors Division of PIMCO Advisors.     
   
  Innovation Fund seeks capital appreciation. No consideration is given to
income. The Fund invests primarily (i.e., at least 65% of its assets) in
common stocks of companies which utilize innovative technologies to gain a
strategic competitive advantage in their industry as well as companies that
provide and service those technologies. Although the Fund emphasizes the
utilization of technologies, it is not restricted to investment in companies
in a particular business sector or industry.     
   
  The Fund may invest a portion of its assets in securities of foreign issuers
traded in foreign securities markets (not including Eurodollar certificates of
deposit), which will not exceed 15% of the Fund's assets at the time of
investment. Investing in the securities of foreign issuers involves special
risks and considerations not typically associated with investing in U.S.
companies. For a discussion of such risks, see "Characteristics and Risks of
Securities and Investment Techniques--Foreign Securities." The Fund may also
purchase and write call and put options on securities and securities indexes;
enter into futures contracts and use options on futures contracts; buy or sell
foreign currencies; and enter into forward foreign currency contracts. The
Portfolio Manager for the Innovation Fund is the PIMCO Equity Advisors
Division of PIMCO Advisors.     
 
  Emerging Markets Fund seeks long-term growth of capital. The Fund invests
primarily in common stocks of companies located in countries identified as
emerging market countries. The Morgan Stanley Capital International Emerging
Markets Free Index ("MSCI Free Index") and the International Finance
Corporation Emerging Markets Index ("IFC Index") are used as the bases for
choosing the countries in which the Fund invests. However, the Fund is not
limited to the countries and weightings of these indexes. The Portfolio
Manager applies two levels of screening in selecting investments for the Fund.
First, an active country selection model analyzes world markets and assigns a
relative value ranking, or "favorability weighting," to each country in the
relevant country universe to determine markets which are relatively
undervalued. Second, at the stock selection level, quality analysis and value
analysis are applied to each security, assessing variables such as balance
sheet strength and earnings growth (quality factors), and performance relative
to the industry, price to earnings ratios, and price to book ratios (value
factors). This two-level screening method identifies undervalued securities
for purchase as well as provides a sell discipline for fully valued
securities. In selecting securities, the Portfolio Manager considers, to the
extent practicable and on the basis of information available to it for
research, a company's environmental business practices.
 
  For purposes of implementing its investment objective, the Fund invests
primarily in some or all of the following emerging market countries (this list
is not exclusive):
 
  Argentina             Hungary             Peru                 Sri Lanka
  Brazil                India               Philippines          Taiwan
  Chile                 Indonesia           Poland               Thailand
  China                 Israel              Portugal             Turkey
  Colombia              Jordan              Romania              Venezuela
  Czech                 Malaysia            Russia               Zimbabwe
  Republic              Mexico              South Africa
  Greece                Pakistan            South Korea
  Hong Kong
 
  For purposes of allocating the Fund's investments, a company is considered
to be located in the country in which it is domiciled, in which it is
primarily traded, from which it derives a significant portion of its revenues,
or in which a significant portion of its goods or services are produced.

                                                 April  , 1999 Prospectus   19
<PAGE>
 
  Most of the foreign securities in which the Fund invests will be denominated
in foreign currencies. The Fund may engage in foreign currency transactions to
protect itself against fluctuations in currency exchange rates in relation to
the U.S. dollar or to the weighting of a particular foreign currency on the
MSCI Free Index or the IFC Index. Such foreign currency transactions may
include forward foreign currency contracts, foreign exchange futures
contracts, and options thereon, currency exchange transactions on a spot
(i.e., cash) basis, and put and call options on foreign currencies. Up to 10%
of the Fund's assets may be invested in the securities of other investment
companies. The Fund may sell (write) call and put options. The Fund may
utilize stock index futures contracts and options thereon for hedging purposes
and also for investment purposes. For instance, the Fund may invest in stock
index futures contracts and related options as an alternative to purchasing
individual stocks to adjust its exposure to a particular foreign market. See
"Characteristics and Risks of Securities and Investment Techniques--Derivative
Instruments--Index Futures." The Fund may also engage in equity index swap
transactions.
   
  Investing in the securities of foreign issuers, and particularly emerging
market issuers, involves special risks and considerations not typically
associated with investing in U.S. companies. For a discussion of such risks,
see "Characteristics and Risks of Securities and Investment Techniques--
Foreign Securities." Currently, the Portfolio Manager for the Emerging Markets
Fund is Blairlogie. [It is anticipated that the Emerging Markets Fund will
reorganize as a series of another mutual fund family on or about March 31,
1999, and thereafter would not be offered as a series of the Trust. See
"Management of the Trust--Portfolio Managers--Blairlogie."]     
 
  International Developed Fund seeks long-term growth of capital. The Fund
invests primarily in a diversified portfolio of international equity
securities. The Morgan Stanley Capital International EAFE (Europe,
Australasia, Far East) Index ("EAFE Index") is used as a basis for choosing
the countries in which the Fund invests. However, the Fund is not limited to
the countries and weightings of the EAFE Index. Under normal market
conditions, the Fund will invest no more than 35% of its assets in securities
issued by companies located in countries that the Portfolio Manager
determines, on the basis of market capitalization, liquidity, and other
considerations, to have underdeveloped securities markets. The Portfolio
Manager applies two levels of screening in selecting investments for the Fund.
First, an active country selection model analyzes world markets and assigns a
relative value ranking, or "favorability weighting," to each country in the
relevant country universe to determine markets which are relatively
undervalued. Second, at the stock selection level, quality analysis and value
analysis are applied to each security, assessing variables such as balance
sheet strength and earnings growth (quality factors) and performance relative
to the industry, price to earnings ratios, and price to book ratios (value
factors). This two-level screening method identifies undervalued securities
for purchase and also provides a sell discipline for fully valued securities.
In selecting securities, the Portfolio Manager considers, to the extent
practicable and on the basis of information available to it for research, a
company's environmental business practices.
 
  For purposes of allocating the Fund's investments, a company is considered
to be located in the country in which it is domiciled, in which it is
primarily traded, from which it derives a significant portion of its revenues,
or in which a significant portion of its goods or services are produced.
 
  Most of the international equity securities in which the Fund invests will
be traded in foreign currencies. The Fund may engage in foreign currency
transactions to protect itself against fluctuations in currency exchange rates
in relation to the U.S. dollar or to the weighting of a particular foreign
currency on the EAFE Index. Such foreign currency transactions may include
forward foreign currency contracts, foreign exchange futures contracts, and
options thereon, currency exchange transactions on a spot (i.e., cash) basis,
and put and call options on foreign currencies. Up to 10% of the Fund's assets
may be invested in the securities of other investment companies. The Fund may
sell (write) call and put options. The Fund may utilize stock index futures
contracts and options thereon for hedging purposes and also for
 
20  PIMCO Funds: Multi-Manager Series
<PAGE>
 
investment purposes. For instance, the Fund may invest in stock index futures
contracts and related options as an alternative to purchasing individual
stocks to adjust its exposure to a particular foreign market. See
"Characteristics and Risks of Securities and Investment Techniques--Derivative
Instruments--Index Futures." The Fund may also engage in equity index swap
transactions.
   
  Investing in the securities of foreign issuers involves special risks and
considerations not typically associated with investing in U.S. companies. For
a discussion of such risks, see "Characteristics and Risks of Securities and
Investment Techniques--Foreign Securities." Currently, the Portfolio Manager
for the International Developed Fund is Blairlogie. [It is anticipated that
the International Developed Fund will reorganize as a series of another mutual
fund family on or about March 31, 1999, and thereafter would not be offered as
a series of the Trust. See "Management of the Trust--Portfolio Managers--
Blairlogie."]     
 
  International Fund seeks capital appreciation through investments in an
international portfolio. Income is an incidental consideration. Under normal
market conditions, at least 65% of the International Fund's total assets will
be invested in common stocks, which may or may not pay dividends, as well as
convertible bonds, convertible preferred stocks, warrants, rights or other
equity securities, for a combination of capital appreciation and income.
Convertible securities may include securities convertible only by certain
classes of investors (which may not include the Fund). The Fund may not invest
in convertible securities which are of less than investment grade quality at
the time of purchase.
 
  The Fund will normally invest in securities traded in developed foreign
securities markets. Particular consideration is given to investments
principally traded in developed North American (other than United States),
Japanese, European, Pacific and Australian securities markets, and in
securities of foreign issuers traded on United States securities markets. The
Fund will also invest in emerging markets, where markets may not yet fully
reflect the potential of the developing economy. There are no prescribed
limits on geographic asset distribution and the Fund has the authority to
invest in securities traded in securities markets of any country in the world.
In allocating the Fund's assets among the various securities markets of any
country in the world, the Portfolio Manager will consider such factors as the
condition and growth potential of the various economies and securities
markets, currency and taxation considerations and other pertinent financial,
social, national and political factors. Under certain adverse investment
conditions, the Fund may restrict the number of securities markets in which
its assets will be invested, although under normal market circumstances the
Fund's investments will include securities principally traded in at least
three different countries. The Fund will not limit its investments to any
particular type or size of company.
 
  The Fund may invest up to 10% of its assets in securities of other
investment companies, such as closed-end management investment companies which
invest in foreign markets. The Fund may also purchase and write call and put
options on securities, securities indexes, and on foreign currencies; enter
into futures contracts and use options on futures contracts, including futures
contracts on foreign currencies; buy or sell foreign currencies; and enter
into forward foreign currency contracts. The Fund may utilize stock index
futures contracts and options thereon for hedging purposes and also for
investment purposes. For instance, the Fund may invest in stock index futures
contacts and related options as an alternative to purchasing individual stocks
to adjust its exposure to a particular foreign market. See "Characteristics
and Risks of Securities and Investment Techniques--Derivative Instruments--
Index Futures."
 
  The Fund will not normally invest in securities of U.S. issuers traded on
U.S. securities markets. However, when the Portfolio Manager believes that
conditions in international securities markets warrant a defensive investment
strategy, the Fund may invest up to 100% of its assets in domestic debt,
foreign debt and equity securities principally traded in the U.S., including
money market instruments, obligations issued or guaranteed by the U.S. or a
foreign

                                                 April  , 1999 Prospectus   21
<PAGE>
 
government or their respective agencies, authorities or instrumentalities, or
corporate bonds and sponsored American Depository Receipts.
   
  Investing in the securities of foreign issuers, and particularly emerging
market issuers, involves special risks and considerations not typically
associated with investing in U.S. companies. For a discussion of such risks,
see "Characteristics and Risks of Securities and Investment Techniques--
Foreign Securities." [Currently, the Portfolio Manager for the International
Fund is Blairlogie. [On or about March 31, 1999, it is anticipated that PIMCO
Advisors will sell substantially all of its ownership interest in Blairlogie
(the "Blairlogie Transaction"). The consummation of the Blairlogie Transaction
is subject to a number of conditions. Subject to the approval of the
shareholders of the International Fund, PIMCO Advisors has determined to
continue to retain Blairlogie as the Portfolio Manager of the Fund following
the Blairlogie Transaction. See "Management of the Trust--Portfolio Managers--
Blairlogie."]     
 
  Capital Appreciation Fund seeks growth of capital. The Fund invests
primarily in common stocks of companies that have improving fundamentals (such
as growth of earnings and dividends) and whose stock is reasonably valued by
the market. Stocks for the Fund are selected from a universe of the
approximately 1,000 largest market capitalization stocks, all of which are
those of companies with market capitalizations of at least $1 billion at the
time of investment. The Fund usually invests in approximately 60 to 100 common
stocks. Each issue is screened and ranked using five distinct computerized
models, including: (i) a dividend growth screen, (ii) an equity growth screen,
(iii) an earnings growth screen, (iv) an earnings momentum screen, and (v) an
earnings surprise screen. The Portfolio Manager believes that the models
identify the stocks in the universe exhibiting growth characteristics with
reasonable valuations. Stocks are replaced when they score worse-than-median
screen ranks, have negative earnings surprises, or show poor relative price
performance. The universe is rescreened frequently to obtain a favorable
composition of growth and value characteristics for the entire Fund. The
Portfolio Manager for the Capital Appreciation Fund is Cadence.
 
  Mid-Cap Growth Fund seeks growth of capital. The Fund invests primarily in
common stocks of middle capitalization companies that have improving
fundamentals (such as growth of earnings and dividends) and whose stock is
reasonably valued by the market. Stocks for the Fund are selected from a
universe of companies with market capitalizations in excess of $500 million at
the time of investment, excluding the 200 companies with the highest market
capitalization. The Fund usually invests in approximately 60 to 100 common
stocks. Each issue is screened and ranked using five distinct computerized
models, including: (i) a dividend growth screen, (ii) an equity growth screen,
(iii) an earnings growth screen, (iv) an earnings momentum screen, and (v) an
earnings surprise screen. The Portfolio Manager believes that the models
identify the stocks in the universe exhibiting growth characteristics with
reasonable valuations. Stocks are replaced when they score worse-than-median
screen ranks, have negative earnings surprises, or show poor relative price
performance. The universe is rescreened frequently to obtain a favorable
composition of growth and value characteristics for the entire Fund. The
Portfolio Manager for the Mid-Cap Growth Fund is Cadence.
 
  Micro-Cap Growth Fund seeks long-term growth of capital. The Fund invests
primarily in common stocks of companies that have improving fundamentals (such
as growth of earnings and dividends) and whose stock is reasonably valued by
the market. The Fund usually invests in approximately 60 to 100 common stocks
selected from a universe of stocks with publicly available market
capitalizations of less than $100 million at the time of investment. Each
issue is screened and ranked using five distinct computerized models,
including: (i) a dividend growth screen, (ii) an equity growth screen, (iii)
an earnings growth screen, (iv) an earnings momentum screen, and (v) an
earnings surprise screen. The Portfolio Manager believes that the models
identify the stocks in the universe exhibiting growth characteristics with
reasonable valuations. Stocks are replaced when they score worse-than-median
screen ranks, have negative earnings surprises, or show poor relative price
performance. The universe is rescreened frequently to obtain a favorable
 
22  PIMCO Funds: Multi-Manager Series
<PAGE>
 
composition of growth and value characteristics for the entire Fund. The Fund
is intended for aggressive investors seeking above-average gains and willing
to accept the greater risks associated therewith. The Portfolio Manager for
the Micro-Cap Growth Fund is Cadence.
 
  Small-Cap Growth Fund seeks growth of capital. The Fund invests primarily in
common stocks of companies that have improving fundamentals (such as growth of
earnings and dividends) and whose stock is reasonably valued by the market.
The Fund usually invests in approximately 60 to 100 common stocks selected
from a universe of stocks with market capitalizations of $50 million to $1
billion at the time of investment. Each issue is screened and ranked using
five distinct computerized models, including: (i) a dividend growth screen,
(ii) an equity growth screen, (iii) an earnings growth screen, (iv) an
earnings momentum screen, and (v) an earnings surprise screen. The Portfolio
Manager believes that the models identify the stocks in the universe
exhibiting growth characteristics with reasonable valuations. Stocks are
replaced when they score worse-than-median screen ranks, have negative
earnings surprises, or show poor relative price performance. The universe is
rescreened frequently to obtain a favorable composition of growth and value
characteristics for the entire Fund. The Fund is intended for aggressive
investors seeking above-average gains and willing to accept the greater risks
associated therewith. The Portfolio Manager for the Small-Cap Growth Fund is
Cadence.
 
  Renaissance Fund seeks long-term growth of capital and income. The Fund
invests primarily in common stocks having below-average valuations whose
issuers are experiencing improvements in their business fundamentals. Relative
valuation is determined using a multi-factor approach that examines
characteristics such as price to book, price to earnings and price to cash
flow ratios. Stocks which pass the valuation screen are further analyzed to
identify the key drivers of financial results and catalysts for change which
indicate that a company may demonstrate improving fundamentals in the future.
Stocks which appear likely to exceed consensus expectations are candidates for
addition to the Fund's portfolio. Stocks are sold from the Fund's portfolio
when the Portfolio Manager believes that their ability to exceed investor
expectations has diminished or when their valuations have become excessive.
 
  The Fund may invest a portion of its assets in securities of foreign issuers
traded in foreign securities markets (not including Eurodollar certificates of
deposit), which will not exceed 15% of the Fund's assets at the time of
investment. Investing in the securities of foreign issuers involves special
risks and considerations not typically associated with investing in U.S.
securities. For a discussion of such risks, see "Characteristics and Risks of
Securities and Investment Techniques--Foreign Securities." The Fund may also
purchase and write call and put options on securities and securities indexes;
enter into futures contracts and use options on futures contracts; buy or sell
foreign currencies; and enter into forward foreign currency contracts. The
Portfolio Manager for the Renaissance Fund is Columbus Circle.
 
  Core Equity Fund seeks long-term growth of capital, with income as a
secondary objective. The Fund attempts to exceed the total return performance
of the S&P 500 over a reasonable measurement period. The Fund usually invests
in approximately 40 to 50 common stocks from companies with market
capitalizations in excess of $3 billion at the time of investment. In
selecting securities, the Portfolio Manager uses an investment discipline
called "Positive Momentum & Positive Surprise." It is based on the premise
that companies performing better than expected will have rising securities
prices, while companies producing less than expected results will not. Through
thorough analysis of company fundamentals in the context of the prevailing
economic environment, the companies selected for purchase remain in the Fund
only if they continue to achieve or exceed expectations, and are sold when
business or earnings results are disappointing. Stock selection may include a
significant portion of middle capitalization companies combined with the large
capitalization stocks.

                                                 April  , 1999 Prospectus   23
<PAGE>
 
  The Fund may invest a portion of its assets in securities of foreign issuers
traded in foreign securities markets, which will not exceed 15% of the Fund's
net assets at the time of investment. Investing in the securities of foreign
issuers involves special risks and considerations not typically associated
with investing in U.S. companies. For a discussion of such risks, see
"Characteristics and Risks of Securities and Investment Techniques--Foreign
Securities." The Fund may also purchase and write call and put options on
securities, securities indexes and on foreign currencies; enter into futures
contracts and use options on futures contracts; and enter into forward foreign
currency contracts. The Portfolio Manager for the Core Equity Fund is Columbus
Circle.
 
  Mid-Cap Equity Fund seeks long-term growth of capital. The Fund usually
invests in approximately 40 to 60 common stocks from companies with market
capitalizations of $800 million to $3 billion at the time of investment. In
selecting securities, the Portfolio Manager uses an investment discipline
called "Positive Momentum & Positive Surprise." It is based on the premise
that companies performing better than expected will have rising securities
prices, while companies producing less than expected results will not. Through
thorough analysis of company fundamentals in the context of the prevailing
economic environment, the companies selected for purchase remain in the Fund
only if they continue to achieve or exceed expectations, and are sold when
business or earnings results are disappointing. Stock selection may include
companies that have grown rapidly from small capitalization status.
 
  The Fund may invest a portion of its assets in securities of foreign issuers
traded in foreign securities markets, which will not exceed 15% of the Fund's
net assets at the time of investment. Investing in the securities of foreign
issuers involves special risks and considerations not typically associated
with investing in U.S. companies. For a discussion of such risks, see
"Characteristics and Risks of Securities and Investment Techniques--Foreign
Securities." The Fund may also purchase and write call and put options on
securities, securities indexes and on foreign currencies; enter into futures
contracts and use options on futures contracts; and enter into forward foreign
currency contracts. The Portfolio Manager for the Mid-Cap Equity Fund is
Columbus Circle.
       
  International Growth Fund seeks long-term capital appreciation. The Fund
invests in an international portfolio of equity and equity-related securities
of companies the principal activities of which are in countries other than the
United States. The Fund will normally invest in securities traded in foreign
securities markets and in securities of foreign issuers traded on U.S.
securities markets. As noted below, except for temporary defensive
investments, the Fund will not invest in securities of U.S. issuers traded on
U.S. securities markets. Otherwise, there are no prescribed limits on
geographic asset distribution, and the Fund has the authority to invest in
securities traded in securities markets of any country in the world. Under
certain adverse investment conditions, the Fund may restrict the number of
securities markets in which it invests, although under normal market
conditions, the Fund's investments will include securities principally traded
in at least three different countries (not including the U.S.). The Fund will
not limit its investments to any particular type or size of company. In
pursuing its investment objective, under normal market conditions, the Fund
will invest at least 65% of its assets in equity securities of issuers which
exhibit growth characteristics in accordance with the Portfolio Manager's
Positive Momentum & Positive Surprise investment discipline (see "Management
of the Trust--Portfolio Managers--Columbus Circle"). The Fund may also invest
in issuers which do not exhibit growth characteristics, but whose securities
are thought to be undervalued.
 
  The Fund may invest in developed foreign securities markets and in emerging
markets, where markets may not fully reflect the potential of the developing
economy. The Fund may also invest in shares of companies which are not
presently listed but are in the process of being privatized by the government
and shares of companies that are traded in over-the-counter markets or other
types of unlisted securities markets.
 

24   PIMCO Funds: Multi-Manager Series
<PAGE>
 
  The Fund will apply the Portfolio Manager's Positive Momentum & Positive
Surprise investment discipline to international markets (see "Management of
the Trust--Portfolio Managers--Columbus Circle"). Asset allocation decisions
("top down") and individual stock selections ("bottom up") result from
identification of positively surprising fundamental trends. Fundamental
factors considered and their importance vary by security, but include country
factors (e.g., changes in the political environment or funds flows);
macroeconomic factors (e.g., GDP growth, inflation and interest rates); global
secular trends (e.g., global grain shortages or growth in wireless
communications); and industry and company specific factors. Investments are
made when the relevant factors are improving (Positive Momentum) faster than
expected (Positive Surprise). The relevant factors can be country (top down)
or company (bottom up) specific.
 
  The Portfolio Manager believes that securities markets of many nations can
be expected to move relatively independently of one another, because business
cycles and other economic or political events that influence one country's
securities markets may have little effect on the securities markets of other
countries. By investing in an international portfolio, the Fund seeks to
reduce the risks associated with investing in the economy of only one country.
 
  The Fund may invest up to 10% of its assets in securities of other
investment companies, such as closed-end management investment companies which
invest in foreign markets. The Fund may also purchase and write call and put
options on securities, securities indexes, and on foreign currencies; enter
into futures contracts and use options on futures contracts, including futures
contracts on foreign currencies; buy or sell foreign currencies; and enter
into forward foreign currency contracts. The Fund may utilize stock index
futures contracts and options thereon for hedging purposes and also for
investment purposes. For instance, the Fund may invest in stock index futures
contracts and related options as an alternative to purchasing individual
stocks to adjust its exposure to a particular foreign market. See
"Characteristics and Risks of Securities and Investment Techniques--Derivative
Instruments--Index Futures."
 
  The Fund will not normally invest in securities of U.S. issuers traded on
U.S. securities markets. However, when the Portfolio Manager believes that
conditions in international securities markets warrant a defensive investment
strategy, the Fund may temporarily invest up to 100% of its assets in domestic
debt, foreign debt and equity securities principally traded in the U.S.,
including money market instruments, obligations issued or guaranteed by the
U.S. or a foreign government or their respective agencies, authorities or
instrumentalities, or corporate bonds and sponsored American Depository
Receipts. The Fund will not invest in debt securities which are of less than
investment grade quality at the time of purchase (i.e., securities rated Ba or
below by Moody's or BB or below by S&P or, if unrated, considered by the
Portfolio Manager to be of comparable quality).
 
  Investing in the securities of foreign issuers, and particularly emerging
market issuers, involves special risks not typically associated with investing
in U.S. companies. For a discussion of such risks, see "Characteristics and
Risks of Securities and Investment Techniques--Foreign Securities." The
Portfolio Manager for the International Growth Fund is Columbus Circle.
 
  Equity Income Fund seeks current income as a primary investment objective,
and long-term growth of capital as a secondary objective. The Fund invests
primarily in common stocks characterized by having below-average price to
earnings ("P/E") ratios and higher dividend yields relative to their industry
groups. In selecting securities, the Portfolio Manager classifies a universe
of approximately 2,000 stocks by industry, each of which has a minimum market
capitalization of $200 million at the time of investment. The universe is then
screened to find the lowest P/E ratios in each industry, subject to
application of quality and price momentum screens. From this group,
approximately 25 stocks with the highest yields are chosen for the Fund. The
universe is then rescreened to find the highest yielding stock in each
industry, subject to application of quality and price momentum screens. From
this group, approximately 25 stocks

                                                   April  , 1999 Prospectus   25
<PAGE>
 
with the lowest P/E ratios are added to the Fund. Although quarterly
rebalancing is a general rule, replacements are made whenever an alternative
stock within the same industry has a significantly lower P/E ratio or higher
dividend yield than the current Fund holding. The Portfolio Manager for the
Equity Income Fund is NFJ.
   
  Value Fund seeks long-term growth of capital and income. The Fund invests
primarily in common stocks characterized by having below-average P/E ratios
relative to their industry groups. In selecting securities, the Portfolio
Manager classifies a universe of approximately 2,000 stocks by industry, each
of which has a minimum market capitalization of $200 million at the time of
investment. The universe is then screened to find the stocks with the lowest
P/E ratios in each industry, subject to application of quality and price
momentum screens. The stocks in each industry with the lowest P/E ratios that
pass the quality and price momentum screens are then selected for the Fund.
The Fund usually invests in approximately 50 stocks, although the Fund may
reduce its holdings below this number (normally not below 30 stocks) if the
Portfolio Manager believes that this would help the Fund to achieve its
investment objective. Although quarterly rebalancing is a general rule,
replacements are made whenever an alternative stock within the same industry
has a significantly lower P/E ratio than the current Fund holding. The
Portfolio Manager for the Value Fund is NFJ.     
 
  Value 25 Fund seeks long-term growth of capital and income. The Fund invests
primarily in a portfolio of approximately 25 common stocks of companies with
medium market capitalizations and below-average P/E ratios relative to their
industry groups. In selecting securities, the Portfolio Manager classifies a
universe of more than 2,000 stocks by industry, each of which has a minimum
market capitalization of $200 million. The universe is then screened to find
stocks with the lowest P/E ratios in each industry, subject to application of
quality, earnings momentum and price momentum screens. Those stocks which pass
the screenings and satisfy the medium-cap size criteria are further analyzed.
Fundamental research is performed on the companies determined by such process
to be the most undervalued. Approximately 25 stocks, diversified across
industries, are selected on an equal-weighted basis for the Fund's portfolio.
Although quarterly rebalancing is a general rule, replacements are made
whenever an alternative stock has a significantly lower P/E ratio than the
current Fund holdings. Because the Fund concentrates on approximately 25
stocks at any one time (and is not as diversified as many stock funds), it is
intended for aggressive investors seeking above-average capital gains and
willing to accept the greater risks associated therewith. The Portfolio
Manager for the Value 25 Fund is NFJ.
   
  Small-Cap Value Fund seeks long-term growth of capital and income. The Fund
invests primarily in common stocks of companies with market capitalizations
between $50 million and $1 billion at the time of investment. In selecting
securities, the Portfolio Manager divides a universe of up to approximately
2,000 stocks into quartiles based upon P/E ratio. The lowest quartile in P/E
ratio is screened for market capitalizations between $50 million and $1
billion, subject to application of quality and price momentum screens.
Approximately 100 stocks with the lowest P/E ratios are combined in the Fund,
subject to limits on the weighting for any one industry. Although quarterly
rebalancing is a general rule, replacements are made whenever a holding
achieves a higher P/E ratio than the S&P 500's P/E ratio or its industry
average P/E ratio, or when an alternative stock within the same industry has a
significantly lower P/E ratio than the current Fund holding. The Fund is
intended for aggressive investors seeking above-average gains and willing to
accept the greater risks associated therewith. The Portfolio Manager for the
Small-Cap Value Fund is NFJ.     
 
  Enhanced Equity Fund seeks to provide a total return which equals or exceeds
the total return performance of an index that represents the performance of a
reasonably broad spectrum of common stocks that are publicly traded in the
United States. The Fund currently attempts to equal or exceed the total return
performance of the S&P 500. The Portfolio Manager uses quantitative techniques
to construct a portfolio that consists of some, but not all, of the common
stocks that are represented in the S&P 500. The Fund may invest in common
stocks of foreign issuers if included in the
 
26  PIMCO Funds: Multi-Manager Series
<PAGE>
 
S&P 500. The Fund attempts to provide risk-controlled exposure to the S&P 500
while adding value through security selection. The Fund is designed to have no
greater volatility than the S&P 500. Stocks in the S&P 500 are ranked by their
exposure to growth and value factors and combined to create a sector-neutral
portfolio which exhibits above average return potential relative to the S&P
500. Approximately 150 positions are owned by the Fund. Stocks with rising
earnings expectations, reasonable valuation of those earnings and positive
investor sentiment are more heavily weighted. The fundamental inputs used in
the stock selection process include company revenues and cash flow, stock
price, reported and estimated earnings, analyst ratings and earnings estimates
revisions. A computer optimization model is used to achieve diversification
and risk control relative to the S&P 500. Frequent and modest rebalancing
assures these exposures are maintained through time. The Trustees reserve the
right to change, without shareholder approval, the index whose total return
the Fund will attempt to equal or exceed, although it is not anticipated that
such a change would be made in the ordinary course of the Fund's operations.
The Fund may engage in the purchase and writing of options on securities
indexes, and may also invest in stock index futures contracts and options
thereon. The Portfolio Manager for the Enhanced Equity Fund is Parametric.
 
  Structured Emerging Markets Fund seeks long-term growth of capital. The Fund
invests primarily in equity securities of companies located in, or whose
business relates to, emerging markets. The Portfolio Manager will identify
those markets that it considers to be emerging markets, relying primarily on
those countries listed on the International Finance Corporation Investable
Composite Index (the "IFC Investable Index"). However, the Portfolio Manager
has discretion in identifying other countries that qualify as emerging markets
on the basis of market capitalization and liquidity, as well as their
inclusion, or consideration for inclusion, as emerging market countries in
other broad-based market indexes. The Fund seeks to achieve its objective by
following a disciplined and systematic methodology for selecting and weighting
countries, industries, and stocks. Diversification and consistent exposure to
opportunity are emphasized over tactical timing decisions with regard to
countries, industries, or stocks. A disciplined methodology for maintaining
the allocation to countries, industries, and stocks is utilized in portfolio
composition, rather than discretionary shifting in country and industry
concentration levels. First, countries are selected based upon their level of
development and equity market institutions. GNP per capita, local economic
diversification, and freedom of investment flows are the primary
considerations in country selection decisions. Most countries are assigned an
equal weight in the Fund unless the size of their equity market is
prohibitive; countries with smaller markets (i.e., less than $5 billion of
market capitalization) are assigned one-half of the weight assigned to
countries with larger markets. Second, all stocks in each eligible country are
divided into five broad economic sector groups: financial, industrial,
consumer, utilities, and natural resources. The Portfolio Manager will
generally endeavor to maintain exposure across all five sectors in each
country. Finally, stocks are selected and purchased to fill out the country
and industry structure. Stock purchase candidates are examined for liquidity,
industry representation, performance relative to industry, and long-term
profitability. Under normal market conditions and assuming Fund size of at
least $5 million, the Portfolio Manager will endeavor to maintain investment
exposure to roughly 20 countries and hold in excess of 200 securities in the
Fund. The allocation methodology described above may be changed from time to
time based on evaluations of economic trends by the Portfolio Manager,
consistent with the principles of broad country and company diversification of
the Fund's investments.
                                                  April  , 1999 Prospectus   27
<PAGE>
 
  For purposes of implementing its investment objective, the Fund invests
primarily in some or all of the following emerging market countries (this list
is not exclusive):
 
  Argentina             Greece              Mexico               Slovenia
  Botswana              Hungary             Morocco              South Africa
  Brazil                India               Pakistan             South Korea
  Chile                 Indonesia           Peru                 Taiwan
  China                 Israel              Philippines          Thailand
  Colombia              Kenya               Poland               Turkey
  Czech Republic        Latvia              Portugal             Venezuela
  Egypt                 Lithuania           Romania              Zimbabwe
  Estonia               Mauritius           Russia
  Ghana                 Malaysia            Slovak Republic
 
  For purposes of allocating the Fund's investments, a company is considered
to be located in the country in which the company is domiciled, and a
company's business "relates to" any emerging market country in which the
company's securities are primarily traded, from which the company derives a
significant portion of its revenues, or in which a significant portion of the
company's goods or services are produced.
   
  Most of the foreign securities in which the Fund invests will be denominated
in foreign currencies. The Fund may engage in foreign currency transactions to
protect itself against fluctuations in currency exchange rates in relation to
the U.S. dollar or to the weighting of a particular foreign currency on the
IFC Investable Index. Such foreign currency transactions may include forward
foreign currency contracts, foreign exchange futures contracts, and options
thereon, currency exchange transactions on a spot (i.e., cash) basis, and put
and call options on foreign currencies. The Fund may sell (write) call and put
options. The Fund may utilize stock index futures contracts and options
thereon for hedging purposes and also for investment purposes. For instance,
the Fund may invest in stock index futures contracts and related options as an
alternative to purchasing individual stocks to adjust its exposure to a
particular foreign market. See "Characteristics and Risks of Securities and
Investment Techniques--Derivative Instruments--Index Futures." The Fund may
also engage in equity index swap transactions. The Fund may also invest up to
5% of its assets in debt securities of issuers located in emerging market
countries, including corporate debt securities and obligations issued or
guaranteed by a foreign government or its agencies, authorities or
instrumentalities.     
 
  Investing in securities of foreign issuers, and particularly emerging market
issuers, involves special risks and considerations not typically associated
with investing in U.S. companies. For a discussion of such risks, see
"Characteristics and Risks of Securities and Investment Techniques--Foreign
Securities." The Portfolio Manager for the Structured Emerging Markets Fund is
Parametric.
 
  Tax-Efficient Structured Emerging Markets Fund has the same investment
objective and policies as the Structured Emerging Markets Fund, except that
the Fund seeks to achieve superior after-tax returns for its shareholders in
part by minimizing the taxes they incur in connection with the Fund's
investment income and realized capital gains by using the strategies described
under "Tax-Efficient Management Strategies" below. While the Fund seeks to
minimize investor taxes associated with the Fund's investment income and
realized capital gains, the Fund may have taxable investment income and may
realize taxable gains from time to time.
 
  Investing in securities of foreign issuers, and particularly emerging market
issuers, involves special risks and considerations not typically associated
with investing in U.S. companies. For a discussion of such risks, see
"Characteristics and Risk of Securities and Investment Techniques--Foreign
Securities." The Portfolio Manager for the Tax-Efficient Structured Emerging
Markets Fund is Parametric.

 
28   PIMCO Funds: Multi-Manager Series
<PAGE>
 
  Tax-Efficient Equity Fund seeks maximum after-tax growth of capital. The
Fund attempts to provide a total return which exceeds the return of the S&P
500. In addition, the Fund seeks to achieve superior after-tax returns for its
shareholders in part by minimizing the taxes they incur in connection with the
Fund's investment income and realized capital gains by using the strategies
described under "Tax-Efficient Management Strategies" below. Notwithstanding
these strategies, the Fund may have taxable investment income and may realize
taxable gains from time to time.
   
  The Fund invests primarily in a broadly diversified portfolio of at least
200 common stocks. Normally, at least 95% of the Fund's assets will be
invested in stocks represented in the S&P 500 and the Fund's portfolio is
designed to have certain characteristics that are similar to those of the
index. These characteristics include such measures as dividend yield, P/E
ratio, relative volatility, economic sector exposure, return on equity and
market price-to-book value ratio. However, the Portfolio Manager attempts to
construct a portfolio that produces a higher total return than the S&P 500 by
using the quantitative security selection techniques described below. Of
course, there can be no assurance that the Fund's investment performance will
equal or exceed that of the S&P 500.     
   
  In selecting specific securities, the Portfolio Manager uses a proprietary
quantitative model that ranks companies based on long-term (5-10 years) price
appreciation potential through analysis of such factors as growth of
sustainable earnings and dividend behavior. Securities in the top 50% of the
model's ranking are considered for purchase. The Portfolio Manager's sell
discipline incorporates a focus on reducing the realization of capital gains.
Each sell candidate is evaluated based on its cost, current market value, and
anticipated benefit of replacement. Securities in the bottom 20% of the
model's ranking are considered for sale. The Fund may engage in the purchase
and writing of options on securities indexes and may also invest in stock
index futures contracts and options thereon. The Portfolio Manager for the
Tax-Efficient Equity Fund is Parametric.     
 
  Tax-Efficient Management Strategies The Portfolio Manager for the Tax-
Efficient Structured Emerging Markets and Tax-Efficient Equity Funds utilizes
a range of active tax management techniques to minimize taxable distributions
for these Funds, including: low portfolio turnover; emphasis towards low-
dividend, growth-oriented companies; tax lot accounting (identification of
specific shares of securities being sold that have the lowest tax cost); and
regular rebalancing to capture available tax credits. The Tax-Efficient
Structured Emerging Markets and Tax-Efficient Equity Funds will generally seek
to avoid realizing net short-term capital gains and, when realizing gains,
will attempt to realize long-term gains (i.e., gains on securities held for
more than 12 months). The Funds intend to notify each shareholder as to that
portion of his or her capital gain dividends which qualifies for a long-term
tax rate of 20% in the hands of the shareholder. Net short-term capital gains,
when distributed, will be taxed as ordinary income, at graduated rates of up
to 39.6%. When these Funds decide to sell a particular appreciated security,
they will normally select for sale first those share lots with holding periods
exceeding 12 months and among those, the share lots with the highest cost
basis. The Funds may, when prudent, sell securities to realize capital losses
that can be used to offset realized capital gains.
 
  To protect against price declines in securities holdings with large
accumulated capital gains, the Tax-Efficient Structured Emerging Markets and
Tax-Efficient Equity Funds may, to the extent permitted by law, use hedging
techniques such as the purchase of put options, the sale of stock index
futures contracts, and equity swaps. By using these techniques rather than
selling such securities, the Funds can reduce their exposure to price declines
in the securities without realizing substantial capital gains. In limited
circumstances, the Funds may follow the practice of distributing selected
appreciated securities to meet redemptions of certain investors and may,
within certain limits, use the selection of securities distributed to meet
such redemptions as a management tool. By distributing appreciated securities
the Funds can reduce their position in such securities without realizing
capital gains. During periods of net withdrawals by investors, using
distributions of securities could enable the Funds to avoid the forced sale of
securities to raise cash for meeting redemptions.
                                                    April  , 1999 Prospectus  29
<PAGE>
 
  It is expected that by employing the various tax-efficient management
strategies described above, the Tax-Efficient Structured Emerging Markets and
Tax-Efficient Equity Funds can minimize the extent to which shareholders incur
taxes as a result of realized capital gains. The Funds may nevertheless
realize gains and shareholders will incur tax liability from time to time.
 
  Balanced Fund seeks total return consistent with prudent investment
management. The Fund attempts to achieve this objective through a management
policy of investing in the following asset classes: common stock, fixed income
securities, and money market instruments. The proportion of the Fund's total
assets allocated among common stocks, fixed income securities, and money
market instruments will vary from time to time and will be determined by the
Adviser. In determining the allocation of the Fund's assets among the three
asset classes, the Adviser will employ asset allocation principles which take
into account certain economic factors, market conditions, and the expected
relative total return and risk of the various asset classes. Under normal
circumstances, it is anticipated that the Fund will generally maintain a
balance among the types of securities in which it invests. Thus, the Fund will
normally maintain 40% to 65% of its assets in common stock, at least 25% of
its assets in fixed income securities, and less than 10% of its assets in
money market instruments. However, in no event would the Fund invest in any
common stock if, at the time of investment, more than 80% of the Fund's assets
would be invested in common stock; in no event would the Fund invest in a
fixed income security (other than a short-term instrument) if, at the time of
investment, more than 80% of the Fund's assets would be invested in fixed
income securities; nor would the Fund invest in a money market instrument if,
at the time of investment, more than 60% of its assets would be invested in
money market instruments.
 
  In managing the Fund, the Adviser uses a specialist approach and has engaged
three of the Trust's Portfolio Managers to manage certain portions of the
Fund's assets. The portion of the assets of the Fund allocated by the Adviser
for investment in common stock (the "Common Stock Segment") will be further
allocated by the Adviser for investment by Cadence and NFJ. The portion of the
Common Stock Segment allocated to Cadence will be managed in accordance with
the investment policies of the Capital Appreciation Fund; the portion
allocated to NFJ will be managed in accordance with the investment policies of
the Value Fund. Allocations of the Common Stock Segment to Cadence and NFJ
will vary from time to time as determined by the Adviser.
 
  The portion of the assets of the Fund allocated by the Adviser for
investment in fixed income securities (the "Fixed Income Securities Segment")
will be managed by Pacific Investment Management. The Fund may invest the
Fixed Income Securities Segment in the following types of securities:
securities issued or guaranteed by the U.S. Government, its agencies or
instrumentalities; corporate debt securities, including convertible securities
and corporate commercial paper; mortgage-related and other asset-backed
securities; inflation-indexed bonds issued by both governments and
corporations; structured notes, including hybrid or "indexed" securities,
catastrophe bonds and loan participations; delayed funding loans and revolving
credit facilities; bank certificates of deposit, fixed time deposits and
bankers' acceptances; repurchase agreements and reverse repurchase agreements;
obligations of foreign governments or their subdivisions, agencies and
instrumentalities; and obligations of international agencies or supranational
entities. Fixed income securities may have fixed, variable, or floating rates
of interest.
 
  The Fund invests the Fixed Income Securities Segment in fixed income
securities of varying maturities. Portfolio holdings will be concentrated in
areas of the bond market (based on quality, sector, coupon or maturity) that
the Portfolio Manager believes to be relatively undervalued. Fixed income
securities in which the Fund may invest will, at the time of investment, be
rated Baa or better by Moody's, BBB or better by S&P or, if not rated by
Moody's or S&P, will be of comparable quality as determined by the Portfolio
Manager, except that up to 10% of the Fixed Income Securities Segment may be
invested in lower rated securities that are rated B or higher by Moody's or
S&P or, if not
 
30  PIMCO Funds: Multi-Manager Series
<PAGE>
 
rated by Moody's or S&P, determined by the Portfolio Manager to be of
comparable quality. High yield fixed income securities rated lower than Baa by
Moody's or BBB by S&P, or of equivalent quality, are not considered to be
investment grade, and are commonly referred to as "junk bonds." Securities
rated below investment grade and comparable unrated securities are subject to
greater risks than higher quality fixed income securities. See
"Characteristics and Risks of Securities and Investment Techniques--High Yield
Securities ("Junk Bonds")." The Fund also may invest up to 20% of the Fixed
Income Securities Segment in securities denominated in foreign currencies, and
may invest beyond this limit in U.S. dollar-denominated securities of foreign
issuers. Investing in securities denominated in foreign currencies and
securities of foreign issuers involves special risks and considerations not
typically associated with investing in U.S. securities. For a discussion of
such risks, see "Characteristics and Risks of Securities and Investment
Techniques--Foreign Securities."
 
  Each Portfolio Manager generally invests a portion of its allocation in
liquid securities to facilitate redemptions. In addition, PIMCO Advisors
reserves the right to allocate a portion of the Fund's assets (the "Money
Market Segment") for investment in money market instruments and reserves the
right to manage the investment of such assets. Because of the Fund's flexible
investment policy, portfolio turnover may be greater than for a fund that does
not allocate assets among various types of securities. See "Portfolio
Transactions."
 
  The Fund may engage in the purchase and writing of put and call options on
debt securities and securities indexes and may also purchase or sell interest
rate futures contracts, stock index futures contracts, and options thereon.
The Fund also may enter into swap agreements with respect to foreign
currencies, interest rates, and securities indexes. With respect to securities
of the Fixed Income Securities Segment denominated in foreign currencies, the
Fund may engage in foreign currency exchange transactions by means of buying
or selling foreign currencies on a spot basis, entering into forward foreign
currency contracts, and buying and selling foreign currency options, foreign
currency futures, and options on foreign currency futures. Foreign currency
exchange transactions may be entered into for the purpose of hedging against
foreign currency exchange risk arising from the Fund's investment or
anticipated investment in securities denominated in foreign currencies and for
purposes of increasing exposure to a particular foreign currency or to shift
exposure to foreign currency fluctuations from one country to another.
 
  Duration  Under normal circumstances, the average portfolio duration of the
Fixed Income Securities Segment of the Balanced Fund will vary within a three-
to six-year time frame, based on the Portfolio Manager's forecast for interest
rates. Duration is a measure of the expected life of a fixed income security
that was developed as a more precise alternative to the concept of "term to
maturity." Traditionally, a fixed income security's "term to maturity" has
been used as proxy for the sensitivity of the security's price to changes in
interest rates (which is the "interest rate risk" or "volatility" of the
security). However, "term to maturity" measures only the time until a fixed
income security provides its final payment, taking no account of the pattern
of the security's payments prior to maturity. In contrast, duration
incorporates a bond's yield, coupon interest payments, final maturity and call
features into one measure of the average life of a fixed income security on a
present value basis. Duration management is one of the fundamental tools used
by the Portfolio Manager for the Fixed Income Securities Segment of the
Balanced Fund. For more information on investments in fixed income securities,
see "Characteristics and Risks of Securities and Investment Techniques" in
this Prospectus and "Investment Objectives and Policies" in the Statement of
Additional Information.

                                                    April  , 1999 Prospectus  31
<PAGE>
 
Stock Funds
   
  The Emerging Markets, International Developed, Capital Appreciation, Mid-Cap
Growth, Micro-Cap Growth, Small-Cap Growth, Core Equity, Mid-Cap Equity,
Equity Income, Value, Value 25, Small-Cap Value, Enhanced Equity, Structured
Emerging Markets, Tax-Efficient Structured Emerging Markets, and Tax-Efficient
Equity Funds will each invest primarily (normally at least 65% of its assets)
in common stock. Each of these Funds may maintain a portion of its assets,
which will usually not exceed 10%, in U.S. Government securities, high quality
debt securities (whose maturity or remaining maturity will not exceed five
years), money market obligations, and in cash to provide for payment of the
Fund's expenses and to meet redemption requests. It is the policy of these
Funds to be as fully invested in common stocks as practicable at all times,
except that the Structured Emerging Markets and Tax-Efficient Structured
Emerging Markets Funds may invest up to 5% of their respective net assets in
debt securities of emerging market issuers. This policy precludes these Funds
from investing in debt securities as a defensive investment posture (although
these Funds may invest in such securities to provide for payment of expenses
and to meet redemption requests). Accordingly, investors in these Funds bear
the risk of general declines in stock prices and the risk that a Fund's
exposure to such declines cannot be lessened by investment in debt securities.
The Funds may also invest in convertible securities, preferred stock, and
warrants, subject to certain limitations.     
   
  The Growth, Target, Opportunity, Innovation, International, Renaissance, and
International Growth Funds will each invest primarily (normally at least 65%
of its assets) in common stocks, and may also invest in other equity
securities, including preferred stocks and securities (including debt
securities and warrants) convertible into or exercisable for common stocks.
The International Growth Fund will invest primarily in equity and equity-
related securities. Each of these Funds may invest a portion or, for temporary
defensive purposes, up to 100% of its assets in short-term U.S. Government
securities and other money market instruments.     
 
  One or more of the Stock Funds may temporarily not be invested primarily in
equity securities immediately following the commencement of operations or
after receipt of significant new monies. While attempting to identify suitable
investments, the Funds may hold assets in cash, short-term U.S. Government
securities, and other money market instruments. Any of the Stock Funds may
temporarily not contain the number of securities in which the Fund normally
invests if the Fund does not have sufficient assets to be fully invested, or
pending the Portfolio Manager's ability to prudently invest new monies.
   
  The Stock Funds may also lend portfolio securities; enter into repurchase
agreements and reverse repurchase agreements (subject to the Funds' investment
limitations described below); purchase and sell securities on a when-issued or
delayed delivery basis; and enter into forward commitments to purchase
securities. All of the Stock Funds may invest in American Depository Receipts
("ADRs"). In addition, the Growth, Target, Opportunity, Innovation, Emerging
Markets, International Developed, International, Renaissance, Core Equity,
Mid-Cap Equity, International Growth, Structured Emerging Markets, and Tax-
Efficient Structured Emerging Markets Funds may invest in European Depository
Receipts ("EDRs") and Global Depository Receipts ("GDRs"). The Stock Funds
that invest primarily in securities of foreign issuers may invest a portion of
their assets in debt securities and money market obligations issued by U.S.
and foreign issuers that are either U.S. dollar-denominated or denominated in
foreign currency. For more information on these and other investment
practices, see "Characteristics and Risks of Securities and Investment
Techniques" in this Prospectus and "Investment Objectives and Policies" in the
Statement of Additional Information.     
 
 
32   PIMCO Funds: Multi-Manager Series
<PAGE>
 
                            INVESTMENT RESTRICTIONS
   
  The investment restrictions set forth below are fundamental policies of the
Growth, Target, Opportunity, Innovation, International, Renaissance, and
International Growth Funds and may not be changed with respect to any such
Fund without shareholder approval by vote of a majority of the outstanding
voting securities of that Fund. The investment objective of each of these
Funds and the Value 25, Tax-Efficient Structured Emerging Markets, and Tax-
Efficient Equity Funds is non-fundamental and may be changed with respect to
each such Fund by the Trustees without shareholder approval. Under the
following fundamental restrictions, none of the Growth, Target, Opportunity,
Innovation, International, Renaissance, and International Growth Funds may:
    
  (1)  Borrow money in excess of 10% of the value (taken at the lower of cost
       or current value) of such Fund's total assets (not including the
       amount borrowed) at the time the borrowing is made, and then only from
       banks as a temporary measure to facilitate the meeting of redemption
       requests (not for leverage) which might otherwise require the untimely
       disposition of portfolio investments or for extraordinary or emergency
       purposes. Such borrowings will be repaid before any additional
       investments are purchased.
 
  (2)  Pledge, hypothecate, mortgage or otherwise encumber its assets in
       excess of 10% of such Fund's total assets (taken at cost) and then
       only to secure borrowings permitted by Restriction (1) above. (The
       deposit of securities or cash or cash equivalents in escrow in
       connection with the writing of covered call or put options,
       respectively, is not deemed to be pledges or other encumbrances.) (For
       the purpose of this restriction, collateral arrangements with respect
       to the writing of options, futures contracts, options on futures
       contracts, and collateral arrangements with respect to initial and
       variation margin are not deemed to be a pledge of assets and neither
       such arrangements nor the purchase or sale of futures or related
       options are deemed to be the issuance of a senior security).
 
  (3)  Underwrite securities issued by other persons except to the extent
       that, in connection with the disposition of its portfolio investments,
       it may be deemed to be an underwriter under federal securities laws.
 
  (4)  Purchase or sell real estate, although it may purchase securities of
       issuers which deal in real estate, including securities of real estate
       investment trusts, and may purchase securities which are secured by
       interests in real estate.
 
  (5)  Acquire more than 10% of the voting securities of any issuer, both
       with respect to any such Fund and to the Funds to which this policy
       relates in the aggregate.
 
  (6)  Concentrate more than 25% of the value of its total assets in any one
       industry; except that the Innovation Fund will concentrate more than
       25% of its assets in companies which use innovative technologies to
       gain a strategic, competitive advantage in their industry as well as
       companies that provide and service those technologies.
 
  The investment restrictions set forth below are fundamental policies of each
of the Emerging Markets, International Developed, Capital Appreciation, Mid-
Cap Growth, Micro-Cap Growth, Small-Cap Growth, Core Equity, Mid-Cap Equity,
Equity Income, Value, Value 25, Small-Cap Value, Enhanced Equity, Structured
Emerging Markets, Tax-Efficient Structured Emerging Markets, Tax-Efficient
Equity, and Balanced Funds and may not be changed with respect to any such
Fund without shareholder approval by vote of a majority of the outstanding
shares of that Fund. The investment objective of each of these Funds (with the
exception of the Value 25, Tax-Efficient Structured Emerging Markets, and Tax-
Efficient Equity Funds) is also fundamental and may not be changed without
such shareholder approval. Under the following fundamental restrictions, none
of the above-referenced Funds may:
 
                                                  April  , 1999 Prospectus   33
<PAGE>
 
  (1)  Invest in a security if, as a result of such investment, more than 25%
       of its total assets (taken at market value at the time of such
       investment) would be invested in the securities of issuers in any
       particular industry, except that this restriction does not apply to
       securities issued or guaranteed by the U.S. Government or its agencies
       or instrumentalities (or repurchase agreements with respect thereto).
 
  (2)  With respect to 75% of its assets, invest in a security if, as a
       result of such investment, more than 5% of its total assets (taken at
       market value at the time of such investment) would be invested in the
       securities of any one issuer, except that this restriction does not
       apply to securities issued or guaranteed by the U.S. Government or its
       agencies or instrumentalities.
 
  (3)  With respect to 75% of its assets, invest in a security if, as a
       result of such investment, it would hold more than 10% (taken at the
       time of such investment) of the outstanding voting securities of any
       one issuer, except that this restriction does not apply to securities
       issued or guaranteed by the U.S. Government or its agencies or
       instrumentalities.
 
  (4)  Purchase or sell real estate, although it may purchase securities
       secured by real estate or interests therein, or securities issued by
       companies in the real estate industry or which invest in real estate
       or interests therein.
 
  (5)  Purchase or sell commodities or commodities contracts (which, for the
       purpose of this restriction, shall not include foreign currency or
       forward foreign currency contracts or swap agreements), except that
       any such Fund may engage in interest rate futures contracts, stock
       index futures contracts, futures contracts based on other financial
       instruments or one or more groups of instruments, and on options on
       such futures contracts.
 
  (6)  Purchase securities on margin, except for use of short-term credit
       necessary for clearance of purchases and sales of portfolio
       securities, but it may make margin deposits in connection with
       transactions in options, futures, and options on futures, and except
       that effecting short sales will be deemed not to constitute a margin
       purchase for purposes of this restriction.
 
  (7)  Borrow money, or pledge, mortgage or hypothecate its assets, except
       that a Fund may (i) borrow from banks or enter into reverse repurchase
       agreements, or employ similar investment techniques, and pledge its
       assets in connection therewith, but only if immediately after each
       borrowing and continuing thereafter, there is asset coverage of 300%
       and (ii) enter into reverse repurchase agreements and transactions in
       options, futures, options on futures, and forward foreign currency
       contracts as described in this Prospectus and in the Statement of
       Additional Information (the deposit of assets in escrow in connection
       with the writing of covered put and call options and the purchase of
       securities on a when-issued or delayed delivery basis and collateral
       arrangements with respect to initial or variation margin deposits for
       futures contracts, options on futures contracts, and forward foreign
       currency contracts will not be deemed to be pledges of such Fund's
       assets).
 
  (8)  Issue senior securities, except insofar as such Fund may be deemed to
       have issued a senior security by reason of borrowing money in
       accordance with the Fund's borrowing policies, and except for purposes
       of this investment restriction, collateral, escrow, or margin or other
       deposits with respect to the making of short sales, the purchase or
       sale of futures contracts or related options, purchase or sale of
       forward foreign currency contracts, and the writing of options on
       securities are not deemed to be an issuance of a senior security.
 
  (9)  Lend any funds or other assets, except that such Fund may, consistent
       with its investment objective and policies: (a) invest in debt
       obligations, including bonds, debentures, or other debt securities,
       bankers' acceptances and commercial paper, even though the purchase of
       such obligations may be deemed to be the making of loans, (b) enter
       into repurchase agreements and reverse repurchase agreements, and (c)
       lend its portfolio securities in an amount not to exceed one-third of
       the value of its total assets, provided such loans
 
34   PIMCO Funds: Multi-Manager Series
<PAGE>
 
        are made in accordance with applicable guidelines established by the
        Securities and Exchange Commission ("SEC") and the Trustees of the
        Trust.
 
  (10)  Act as an underwriter of securities of other issuers, except to the
        extent that in connection with the disposition of portfolio
        securities, it may be deemed to be an underwriter under the federal
        securities laws.
 
  Unless otherwise noted, the remaining restrictions and policies of each Fund
relating to the investment of its assets and activities are non-fundamental
and may be changed without shareholder approval. As indicated above, certain
fundamental investment restrictions do not apply to certain Funds. However,
certain non-fundamental restrictions, set forth in the Statement of Additional
Information, place comparable limitations on these Funds. See "Investment
Restrictions" in the Statement of Additional Information.
 
  Unless otherwise indicated, all limitations applicable to Fund investments
apply only at the time a transaction is entered into. Any subsequent change in
a rating assigned by any rating service to a security (or, if unrated, deemed
to be of comparable quality), or change in the percentage of Fund assets
invested in certain securities or other instruments resulting from market
fluctuations or other changes in a Fund's total assets will not require a Fund
to dispose of an investment until the Adviser or Portfolio Manager determines
that it is practicable to sell or close out the investment without undue
market or tax consequences to the Fund. In the event that ratings services
assign different ratings to the same security, the Adviser or Portfolio
Manager will determine which rating it believes best reflects the security's
quality and risk at that time, which may be the higher of the several assigned
ratings.
 
                   CHARACTERISTICS AND RISKS OF SECURITIES 
                           AND INVESTMENT TECHNIQUES
 
  The different types of securities and investment techniques used by the
individual Funds all have attendant risks of varying degrees. For example,
with respect to common stock, there can be no assurance of capital
appreciation, and there is a risk of market decline. With respect to debt
securities, including money market instruments, there is the risk that the
issuer of a security may not be able to meet its obligation to make scheduled
interest or principal payments. Because each Fund seeks a different investment
objective and has different investment policies, each is subject to varying
degrees of financial, market, and credit risks. Therefore, investors should
carefully consider the investment objective, investment policies, and
potential risks of any Fund or Funds before investing.
 
  The following describes potential risks associated with different types of
investment techniques that may be used by the individual Funds. For more
detailed information on these investment techniques, as well as information on
the types of securities in which some or all of the Funds may invest, see the
Statement of Additional Information.
 
Small and Medium Capitalization Stocks
   
  Certain of the Funds may invest in common stock of companies with market
capitalizations that are small compared to those of other publicly traded
companies. Generally, small market capitalization is considered to be less
than $1.5 billion and large market capitalization is considered to be more
than $5 billion. Under normal market conditions, the Opportunity Fund will
invest primarily in companies with market capitalizations of less than $2
billion, the Small-Cap Growth and Small-Cap Value Funds will invest primarily
in companies with market capitalizations of between $50 million and $1
billion, and the Micro-Cap Growth Fund will invest primarily in companies with
market capitalizations of less than $100 million. Investments in larger
companies present certain advantages in that such companies generally have
greater financial resources, more extensive research and development,
manufacturing, marketing and service capabilities, and more stability and
greater depth of management and technical personnel. Investments in smaller,
less seasoned     

                                                  April  , 1999 Prospectus   35
<PAGE>
 
companies may present greater opportunities for growth but also may involve
greater risks than customarily are associated with more established companies.
The securities of smaller companies may be subject to more abrupt or erratic
market movements than larger, more established companies. These companies may
have limited product lines, markets or financial resources, or they may be
dependent upon a limited management group. Their securities may be traded in
the over-the-counter market or on a regional exchange, or may otherwise have
limited liquidity. As a result of owning large positions in this type of
security, a Fund is subject to the additional risk of possibly having to sell
portfolio securities at disadvantageous times and prices if redemptions
require the Fund to liquidate its securities positions. In addition, it may be
prudent for a Fund with a relatively large asset size to limit the number of
relatively small positions it holds in securities having limited liquidity in
order to minimize its exposure to such risks, to minimize transaction costs,
and to maximize the benefits of research. As a consequence, as a Fund's asset
size increases, the Fund may reduce its exposure to illiquid small
capitalization securities, which could adversely affect performance.
 
  Many of the Funds may also invest in stocks of companies with medium market
capitalizations. Whether a U.S. issuer's market capitalization is medium is
determined by reference to the capitalization for all issuers whose equity
securities are listed on a United States national securities exchange or which
are reported on NASDAQ. Issuers with market capitalizations within the range
of capitalization of companies included in the S&P Mid Cap 400 Index may be
regarded as being issuers with medium market capitalizations. Such investments
share some of the risk characteristics of investments in stocks of companies
with small market capitalizations described above, although such companies
tend to have longer operating histories, broader product lines and greater
financial resources, and their stocks tend to be more liquid and less volatile
than those of smaller capitalization issuers.
 
Repurchase Agreements
 
  For the purposes of maintaining liquidity and achieving income, each Fund
may enter into repurchase agreements, which entail the purchase of a
portfolio-eligible security from a bank or broker-dealer that agrees to
repurchase the security at the Fund's cost plus interest within a specified
time (normally one day). If the party agreeing to repurchase should default,
as a result of bankruptcy or otherwise, the Fund will seek to sell the
securities which it holds, which action could involve procedural costs or
delays in addition to a loss on the securities if their value should fall
below their repurchase price. Those Funds whose investment objectives do not
include the earning of income will invest in repurchase agreements only as a
cash management technique with respect to that portion of the portfolio
maintained in cash. Each Fund will limit its investment in repurchase
agreements maturing in more than seven days consistent with the Fund's policy
on investment in illiquid securities.
 
Reverse Repurchase Agreements and Other Borrowings
 
  A reverse repurchase agreement may for some purposes be considered borrowing
that involves the sale of a security by a Fund and its agreement to repurchase
the instrument at a specified time and price. The Fund will segregate assets
determined to be liquid by the Adviser or a Portfolio Manager in accordance
with procedures established by the Board of Trustees to cover its obligations
under reverse repurchase agreements. Reverse repurchase agreements will be
subject to the Funds' limitations on borrowings. A Fund also may borrow money
for investment purposes subject to any policies of the Fund currently
described in this Prospectus or in the Statement of Additional Information.
Such a practice will result in leveraging of a Fund's assets. Leverage will
tend to exaggerate the effect on net asset value of any increase or decrease
in the value of a Fund's portfolio and may cause a Fund to liquidate portfolio
positions when it would not be advantageous to do so.
 
 
36   PIMCO Funds: Multi-Manager Series
<PAGE>
 
Loans of Portfolio Securities
 
  For the purpose of achieving income, each Fund may lend its portfolio
securities to brokers, dealers, and other financial institutions, provided:
 
  (i)    the loan is secured continuously by collateral consisting of U.S.
         Government securities, cash or cash equivalents (negotiable
         certificates of deposit, bankers' acceptances or letters of credit)
         maintained on a daily mark-to-market basis in an amount at least equal
         to the current market value of the securities loaned;
 
  (ii)   the Fund may at any time call the loan and obtain the return of the
         securities loaned;
 
  (iii)  the Fund will receive any interest or dividends paid on the loaned
         securities; and
 
  (iv)   the aggregate market value of securities loaned will not at any time
         exceed the Fund's limitation on lending its portfolio securities.
 
  Each Fund's performance will continue to reflect changes in the value of the
securities loaned and will also reflect the receipt of either interest,
through investment of cash collateral by the Fund in permissible investments,
or a fee, if the collateral is U.S. Government securities. Securities lending
involves the risk of loss of rights in the collateral or delay in recovery of
the collateral should the borrower fail to return the security loaned or
become insolvent. The Funds may pay lending fees to the party arranging the
loan.
 
Foreign Securities
   
  The Emerging Markets, International Developed, International, International
Growth, Structured Emerging Markets, and Tax-Efficient Structured Emerging
Markets Funds may invest directly in foreign equity securities; U.S. dollar-
or foreign currency-denominated foreign corporate debt securities; foreign
preferred securities; certificates of deposit, fixed time deposits and
bankers' acceptances issued by foreign banks; and obligations of foreign
governments or their subdivisions, agencies and instrumentalities,
international agencies and supranational entities. The Growth, Target,
Opportunity, Innovation, Renaissance, Core Equity, and Mid-Cap Equity Funds
may invest up to 15% of their respective net assets in securities which are
traded principally in securities markets outside the United States (Eurodollar
certificates of deposit are excluded for purposes of these limitations). The
Growth, Target, Opportunity, Innovation, and Renaissance Funds may invest
without limit in securities of foreign issuers that are traded in U.S.
markets. The Enhanced Equity Fund may invest in common stock of foreign
issuers if included in the index from which stocks are selected. The Balanced
Fund may invest up to 20% of its Fixed Income Securities Segment in securities
denominated in foreign currencies, and may invest beyond this limit in U.S.
dollar-denominated securities of foreign issuers.     
   
  All of the Funds may invest in ADRs. In addition, the Growth, Target,
Opportunity, Innovation, Emerging Markets, International Developed,
International, Renaissance, Core Equity, Mid-Cap Equity, International Growth,
Structured Emerging Markets, and Tax-Efficient Structured Emerging Markets
Funds may invest in EDRs and GDRs. ADRs are dollar-denominated receipts issued
generally by domestic banks and representing the deposit with the bank of a
security of a foreign issuer, and are publicly traded on exchanges or over-
the-counter in the United States. EDRs are receipts similar to ADRs and are
issued and traded in Europe. GDRs may be offered privately in the United
States and also trade in public or private markets in other countries.     
 
  Investing in the securities of issuers in any foreign country involves
special risks and considerations not typically associated with investing in
U.S. companies. Shareholders should consider carefully the substantial risks
involved in investing in securities issued by companies and governments of
foreign nations. These risks include: differences in accounting, auditing and
financial reporting standards; generally higher commission rates on foreign
portfolio

                                                  April  , 1999 Prospectus   37
<PAGE>
 
transactions; the possibility of nationalization, expropriation or
confiscatory taxation; adverse changes in investment or exchange control
regulations (which may include suspension of the ability to transfer currency
from a country); and political instability which could affect U.S. investments
in foreign countries. Individual foreign economies may differ favorably or
unfavorably from the U.S. economy in such respects as growth of gross domestic
product, rate of inflation, capital reinvestment, resources, self-sufficiency,
and balance of payments position. The securities markets, values of
securities, yields, and risks associated with securities markets may change
independently of each other. Additionally, foreign securities and dividends
and interest payable on those securities may be subject to foreign taxes,
including taxes withheld from payments on those securities. Foreign securities
often trade with less frequency and volume than domestic securities and
therefore may exhibit greater price volatility. Additional costs associated
with an investment in foreign securities may include higher custodial fees
than apply to domestic custodial arrangements and transaction costs of foreign
currency conversions. Changes in foreign exchange rates also will affect the
value of securities denominated or quoted in currencies other than the U.S.
dollar.
 
  A Fund's investments in foreign currency denominated debt obligations and
hedging activities will likely produce a difference between its book income
and its taxable income. This difference may cause a portion of the Fund's
income distributions to constitute returns of capital for tax purposes or
require the Fund to make distributions exceeding book income to qualify as a
regulated investment company for federal tax purposes.
 
  Certain of the Funds and, in particular, the Emerging Markets, Structured
Emerging Markets, and Tax-Efficient Structured Emerging Markets Funds, may
invest in the securities of issuers based in countries with developing
economies. Investing in developing (or "emerging market") countries involves
certain risks not typically associated with investing in U.S. securities, and
imposes risks greater than, or in addition to, risks of investing in foreign,
developed countries. A number of emerging market countries restrict, to
varying degrees, foreign investment in securities. Repatriation of investment
income, capital, and the proceeds of sales by foreign investors may require
governmental registration and/or approval in some emerging market countries. A
number of the currencies of emerging market countries have experienced
significant declines against the U.S. dollar in recent years, and devaluation
may occur subsequent to investments in these currencies by a Fund. Inflation
and rapid fluctuations in inflation rates have had, and may continue to have,
negative effects on the economies and securities markets of certain emerging
market countries. Many of the emerging securities markets are relatively
small, have low trading volumes, suffer periods of relative illiquidity, and
are characterized by significant price volatility. There is a risk in emerging
market countries that a future economic or political crisis could lead to
price controls, forced mergers of companies, expropriation or confiscatory
taxation, seizure, nationalization, or creation of government monopolies, any
of which may have a detrimental effect on a Fund's investment.
 
  Additional risks of investing in emerging market countries may include:
currency exchange rate fluctuations; greater social, economic and political
uncertainty and instability (including the risk of war); more substantial
governmental involvement in the economy; less governmental supervision and
regulation of the securities markets and participants in those markets;
unavailability of currency hedging techniques in certain emerging market
countries; the fact that companies in emerging market countries may be newly
organized and may be smaller and less seasoned companies; the difference in,
or lack of, auditing and financial reporting standards, which may result in
unavailability of material information about issuers; the risk that it may be
more difficult to obtain and/or enforce a judgment in a court outside the
United States; and significantly smaller market capitalization of securities
markets. Also, any change in the leadership or politics of emerging market
countries, or the countries that exercise a significant influence over those
countries, may halt the expansion of or reverse the liberalization of foreign
investment policies now occurring and adversely affect existing investment
opportunities.
 
 
38   PIMCO Funds: Multi-Manager Series
<PAGE>
 
  In addition, emerging securities markets may have different clearance and
settlement procedures, which may be unable to keep pace with the volume of
securities transactions or otherwise make it difficult to engage in such
transactions. Settlement problems may cause a Fund to miss attractive
investment opportunities, hold a portion of its assets in cash pending
investment, or delay in disposing of a portfolio security. Such a delay could
result in possible liability to a purchaser of the security.
 
  Special Risks of Investing in Russian and Other Eastern European Securities
The Emerging Markets, International, International Growth, Structured Emerging
Markets, and Tax-Efficient Structured Emerging Markets Funds may invest a
portion of their assets in securities of issuers located in Russia and in
other Eastern European countries. While investments in securities of such
issuers are subject generally to the same risks associated with investments in
other emerging market countries described above, the political, legal and
operational risks of investing in Russian and other Eastern European issuers,
and of having assets custodied within these countries, may be particularly
acute. A risk of particular note with respect to direct investment in Russian
securities is the way in which ownership of shares of companies is normally
recorded. When a Fund invests in a Russian issuer, it will normally receive a
"share extract," but that extract is not legally determinative of ownership.
The official record of ownership of a company's share is maintained by the
company's share registrar. Such share registrars are completely under the
control of the issuer, and investors are provided with few legal rights
against such registrars. Please refer to "Investment Objectives and Policies--
Foreign Securities" in the Statement of Additional Information for a more
complete description of these and other risks associated with investments in
securities of Russian and other Eastern European issuers.
 
Foreign Currency Transactions
 
  Foreign currency exchange rates may fluctuate significantly over short
periods of time. They generally are determined by the forces of supply and
demand in the foreign exchange markets and the relative merits of investments
in different countries, actual or perceived changes in interest rates and
other complex factors, as seen from an international perspective. Currency
exchange rates also can be affected unpredictably by intervention (or the
failure to intervene) by U.S. or foreign governments or central banks, or by
currency controls or political developments in the U.S. or abroad. For
example, significant uncertainty surrounds the proposed introduction of the
euro (a common currency unit for the European Union) in January 1999 and its
effect on the value of securities denominated in local European currencies.
These and other currencies in which the Funds' assets are denominated may be
devalued against the U.S. dollar, resulting in a loss to the Funds. For a more
complete discussion of foreign currency risks (including those associated with
the euro), please see "Investment Objectives and Policies--Foreign Currencies"
in the Statement of Additional Information.
   
  The Growth, Target, Opportunity, Innovation, Emerging Markets, International
Developed, International, Renaissance, Core Equity, Mid-Cap Equity,
International Growth, Structured Emerging Markets, Tax-Efficient Structured
Emerging Markets, and Balanced Funds may enter into forward foreign currency
exchange contracts to reduce the risks of adverse changes in foreign exchange
rates. In addition, the Emerging Markets, International Developed,
International, International Growth, Structured Emerging Markets, Tax-
Efficient Structured Emerging Markets, and Balanced Funds may buy and sell
foreign currency futures contracts and options on foreign currencies and
foreign currency futures. A forward foreign currency exchange contract
involves an obligation to purchase or sell a specific currency at a future
date, which may be any fixed number of days from the date of the contract
agreed upon by the parties, at a price set at the time of the contract. By
entering into a forward foreign currency exchange contract, the Fund "locks
in" the exchange rate between the currency it will deliver and the currency it
will receive for the duration of the contract. As a result, a Fund reduces its
exposure to changes in the value of the currency it will deliver and increases
its exposure to changes in the value of the currency it     


                                                  April  , 1999 Prospectus   39
<PAGE>
 
will exchange into. The effect on the value of a Fund is similar to selling
securities denominated in one currency and purchasing securities denominated
in another. Contracts to sell foreign currency would limit any potential gain
which might be realized by a Fund if the value of the hedged currency
increases. A Fund may enter into these contracts for the purpose of hedging
against foreign exchange risk arising from the Fund's investment or
anticipated investment in securities denominated in foreign currencies.
Suitable hedging transactions may not be available in all circumstances and
there can be no assurance that a Fund will engage in such transactions at any
given time or from time to time. Also, such transactions may not be successful
and may eliminate any chance for a Fund to benefit from favorable fluctuations
in relevant foreign currencies. The Emerging Markets, International Developed,
International, International Growth, Structured Emerging Markets, and Tax-
Efficient Structured Emerging Markets Funds also may enter into these
contracts for purposes of increasing exposure to a foreign currency or to
shift exposure to foreign currency fluctuations from one country to another.
To the extent that they do so, the Emerging Markets, International Developed,
International, International Growth, Structured Emerging Markets, and Tax-
Efficient Structured Emerging Markets Funds will be subject to the additional
risk that the relative value of currencies will be different than anticipated
by the particular Fund's Portfolio Manager. These Funds may use one currency
(or a basket of currencies) to hedge against adverse changes in the value of
another currency (or a basket of currencies) when exchange rates between the
two currencies are positively correlated. Each Fund will segregate assets
determined to be liquid by the Adviser or a Portfolio Manager in accordance
with procedures established by the Board of Trustees to cover its obligations
under forward foreign currency exchange contracts entered into for non-hedging
purposes.
 
High Yield Securities ("Junk Bonds")
   
  The Growth, Renaissance and Balanced Funds may invest a portion of their
assets in fixed income securities rated lower than Baa by Moody's or lower
than BBB by S&P but rated at least B by Moody's or S&P or, if not rated,
determined by the Portfolio Manager to be of comparable quality. In addition,
the Renaissance Fund may invest in convertible securities rated below B by
Moody's or S&P (or, if unrated, considered by the Portfolio Manager to be of
comparable quality). Securities rated lower than Baa by Moody's or lower than
BBB by S&P are sometimes referred to as "high yield" or "junk" bonds.
Investors should consider the risks associated with high yield securities
before investing in these Funds. Although each of the Growth and Renaissance
Funds reserves the right to do so at any time, as of the date of this
Prospectus, neither Fund invests nor has the present intention to invest more
than 5% of its assets in high yield securities or junk bonds.     
 
  Investing in high yield securities involves special risks in addition to the
risks associated with investments in higher rated fixed income securities.
While offering a greater potential opportunity for capital appreciation and
higher yields than investments in higher rated debt securities, high yield
securities typically entail greater potential price volatility and may be less
liquid than investment grade debt. High yield securities may be regarded as
predominately speculative with respect to the issuer's continuing ability to
meet principal and interest payments. Analysis of the creditworthiness of
issuers of high yield securities may be more complex than for issuers of
higher quality debt securities, and achievement of a Fund's investment
objective may, to the extent of its investments in high yield securities,
depend more heavily on the Portfolio Manager's creditworthiness analysis than
would be the case if the Fund were investing in higher quality securities.
High yield securities may be more susceptible to real or perceived adverse
economic and competitive industry conditions than higher grade securities.
 
  For additional discussion of the characteristics of lower rated fixed income
securities, see the Statement of Additional Information. Ratings assigned to
fixed income securities are described in the Appendix to the Statement of
Additional Information.
 
 
40   PIMCO Funds: Multi-Manager Series
<PAGE>
 
Derivative Instruments
   
  To the extent permitted by the investment objective and policies of each
Fund, a Fund may purchase and write call and put options on securities,
securities indexes and foreign currencies, and enter into futures contracts
and use options on futures contracts as further described below. In pursuit of
their investment objectives, the Growth, Target, Opportunity, Innovation,
Emerging Markets, International Developed, International, Renaissance, Core
Equity, Mid-Cap Equity, International Growth, Structured Emerging Markets,
Tax-Efficient Structured Emerging Markets, Tax-Efficient Equity, and Balanced
Funds may engage in the purchase and writing of call and put options on
securities and enter into futures contracts and options thereon; each of these
Funds, along with the Enhanced Equity Fund, may engage in the purchase and
writing of options on securities indexes and enter into securities index
futures contracts and options thereon. The Funds that may invest in foreign
currency denominated securities may engage in the purchase and writing of call
and put options on foreign currencies. The Emerging Markets, International
Developed, Structured Emerging Markets, Tax-Efficient Structured Emerging
Markets, Tax-Efficient Equity, and Balanced Funds also may enter into swap
agreements with respect to securities indexes. The Balanced Fund may also
enter into swap agreements with respect to foreign currencies and interest
rates. The Funds may (but are not required to) use these techniques to hedge
against changes in interest rates, foreign currency exchange rates or
securities prices; and for the Emerging Markets, International Developed,
International, International Growth, Structured Emerging Markets, and Tax-
Efficient Structured Emerging Markets Funds, to increase exposure to a foreign
currency, to shift exposure to foreign currency fluctuations from one country
to another, or as part of their overall investment strategies. Each Fund will
segregate assets determined to be liquid by the Adviser or a Portfolio Manager
in accordance with procedures established by the Board of Trustees (or, as
permitted by applicable regulation, enter into certain offsetting positions)
to cover its obligations under options, futures, and swaps to limit leveraging
of the Fund.     
 
  Derivative instruments are considered for these purposes to consist of
securities or other instruments whose value is derived from or related to the
value of some other instrument or asset, and not to include those securities
whose payment of principal and/or interest depends upon cash flows from
underlying assets, such as mortgage-related or asset-backed securities. See
"Mortgage-Related and Other Asset-Backed Securities." The value of some
derivative instruments in which the Funds may invest may be particularly
sensitive to changes in prevailing interest rates, and, like the other
investments of the Funds, the ability of a Fund to successfully utilize these
instruments may depend in part upon the ability of the Portfolio Manager to
forecast interest rates and other economic factors correctly. If the Portfolio
Manager incorrectly forecasts such factors and has taken positions in
derivative instruments contrary to prevailing market trends, the Funds could
be exposed to the risk of loss.
 
  The Funds might not employ any of the strategies described below, and no
assurance can be given that any strategy used will succeed. If the Portfolio
Manager incorrectly forecasts interest rates, market values or other economic
factors in utilizing a derivatives strategy for a Fund, the Fund might have
been in a better position if it had not entered into the transaction at all.
Also, suitable derivative transactions may not be available in all
circumstances. The use of these strategies involves certain special risks,
including a possible imperfect correlation, or even no correlation, between
price movements of derivative instruments and price movements of related
investments. While some strategies involving derivative instruments can reduce
the risk of loss, they can also reduce the opportunity for gain or even result
in losses by offsetting favorable price movements in related investments or
otherwise, due to the possible inability of a Fund to purchase or sell a
portfolio security at a time that otherwise would be favorable or the possible
need to sell a portfolio security at a disadvantageous time because the Fund
is required to maintain asset coverage or offsetting positions in connection
with transactions in derivative instruments, and the possible inability of a
Fund to close out or to liquidate

                                                  April  , 1999 Prospectus   41
<PAGE>
 
its derivatives positions. In addition, a Fund's use of such instruments may
cause the Fund to realize higher amounts of short-term capital gains
(generally taxed at ordinary income tax rates) than if the Fund had not used
such instruments.
 
  Options on Securities, Securities Indexes, and Currencies Certain Funds may
purchase put options on securities. One purpose of purchasing put options is
to protect holdings in an underlying or related security against a substantial
decline in market value. These Funds may also purchase call options on
securities. One purpose of purchasing call options is to protect against
substantial increases in prices of securities the Fund intends to purchase
pending its ability to invest in such securities in an orderly manner. A Fund
may sell put or call options it has previously purchased, which could result
in a net gain or loss depending on whether the amount realized on the sale is
more or less than the premium and other transaction costs paid on the put or
call option which is sold. A Fund may write a call or put option only if the
option is "covered" by the Fund holding a position in the underlying
securities or by other means which would permit immediate satisfaction of the
Fund's obligation as writer of the option. Prior to exercise or expiration, an
option may be closed out by an offsetting purchase or sale of an option of the
same series.
 
  The purchase and writing of options involves certain risks. During the
option period, the covered call writer has, in return for the premium on the
option, given up the opportunity to profit from a price increase in the
underlying security above the exercise price, but, as long as its obligation
as a writer continues, has retained the risk of loss should the price of the
underlying security decline. The writer of an option has no control over the
time when it may be required to fulfill its obligation as a writer of the
option. Once an option writer has received an exercise notice, it cannot
effect a closing purchase transaction in order to terminate its obligation
under the option and must deliver the underlying security at the exercise
price. If a put or call option purchased by the Fund is not sold when it has
remaining value, and if the market price of the underlying security remains
equal to or greater than the exercise price (in the case of a put), or remains
less than or equal to the exercise price (in the case of a call), the Fund
will lose its entire investment in the option. Also, where a put or call
option on a particular security is purchased to hedge against price movements
in a related security, the price of the put or call option may move more or
less than the price of the related security. There can be no assurance that a
liquid market will exist when a Fund seeks to close out an option position.
Furthermore, if trading restrictions or suspensions are imposed on the options
markets, a Fund may be unable to close out a position.
   
  For each of the Growth, Target, Opportunity, Innovation, International,
Renaissance, and International Growth Funds, in the case of a written call
option on a securities index, the Fund will own corresponding securities whose
historic volatility correlates with that of the index.     
 
  The Emerging Markets, International Developed, International, Core Equity,
Mid-Cap Equity, International Growth, Structured Emerging Markets, Tax-
Efficient Structured Emerging Markets, and Balanced Funds may buy or sell put
and call options on foreign currencies as a hedge against changes in the value
of the U.S. dollar (or another currency) in relation to a foreign currency in
which a Fund's securities may be denominated. Currency options traded on U.S.
or other exchanges may be subject to position limits which may limit the
ability of a Fund to reduce foreign currency risk using such options.
 
  Over-the-counter options in which certain Funds may invest differ from
traded options in that they are two-party contracts, with price and other
terms negotiated between buyer and seller, and generally do not have as much
market liquidity as exchange-traded options. The Funds may be required to
treat as illiquid over-the-counter options purchased and securities being used
to cover certain written over-the-counter options.
 
  Swap Agreements The Emerging Markets, International Developed, Structured
Emerging Markets, Tax-Efficient Structured Emerging Markets, and Tax-Efficient
Equity Funds may enter into equity index swap agreements for purposes of

 
42   PIMCO Funds: Multi-Manager Series
<PAGE>
 
gaining exposure to the stocks making up an index of securities without
actually purchasing those stocks. The Balanced Fund may enter into swap
agreements to hedge against changes in interest rates, foreign currency
exchange rates or securities prices. Swap agreements are two-party contracts
entered into primarily by institutional investors for periods ranging from a
few weeks to more than one year. In a standard swap transaction, two parties
agree to exchange the returns (or differentials in rates of return) earned or
realized on particular predetermined investments or instruments, which may be
adjusted for an interest factor. The gross returns to be exchanged or
"swapped" between the parties are generally calculated with respect to a
"notional amount," i.e., the return on or increase in value of a particular
dollar amount invested at a particular interest rate, or in a "basket" of
securities representing a particular index.
 
  Most swap agreements entered into by the Funds calculate the obligations of
the parties to the agreement on a "net basis." Consequently, a Fund's current
obligations (or rights) under a swap agreement will generally be equal only to
the net amount to be paid or received under the agreement based on the
relative values of the positions held by each party to the agreement (the "net
amount"). A Fund's current obligations under a swap agreement will be accrued
daily (offset against amounts owed to the Fund), and any accrued but unpaid
net amounts owed to a swap counterparty will be covered by the segregation of
assets determined to be liquid by the Portfolio Manager in accordance with
procedures established by the Board of Trustees to limit any potential
leveraging of the Fund's portfolio. Obligations under swap agreements so
covered will not be construed to be "senior securities" for purposes of a
Fund's investment restriction concerning senior securities. A Fund will not
enter into a swap agreement with any single party if the net amount owed or to
be received under existing contracts with that party would exceed 5% of the
Fund's assets.
 
  Whether a Fund's use of swap agreements will be successful in furthering its
investment objective will depend on the Portfolio Manager's ability to predict
correctly whether certain types of investments are likely to produce greater
returns than other investments. Because they are two-party contracts and
because they may have terms of greater than seven days, swap agreements may be
considered to be illiquid investments. Moreover, a Fund bears the risk of loss
of the amount expected to be received under a swap agreement in the event of
the default or bankruptcy of a swap agreement counterparty. The Funds will
enter into swap agreements only with counterparties that meet certain
standards for creditworthiness (generally, such counterparties would have to
be eligible counterparties under the terms of the Funds' repurchase agreement
guidelines). The swaps market is a relatively new market and is largely
unregulated. It is possible that developments in the swaps market, including
potential government regulation, could adversely affect a Fund's ability to
terminate existing swap agreements or to realize amounts to be received under
such agreements.
 
  Futures Contracts and Options on Futures Contracts Certain Funds may enter
into futures contracts and options thereon. The Balanced Fund may invest in
interest rate futures contracts and options thereon. The Emerging Markets,
International Developed, International, Core Equity, Mid-Cap Equity,
International Growth, Structured Emerging Markets, Tax-Efficient Structured
Emerging Markets, and Balanced Funds may invest in foreign exchange futures
contracts and options thereon ("futures options") that are traded on a U.S. or
foreign exchange or board of trade, or similar entity, or quoted on an
automated quotation system. These Funds may engage in such futures
transactions as an adjunct to their securities activities.
 
  There are several risks associated with the use of futures and futures
options for hedging purposes. There can be no guarantee that there will be a
correlation between price movements in the hedging vehicle and in the
portfolio securities being hedged. An incorrect correlation could result in a
loss on both the hedged securities in a Fund and the hedging vehicle, so that
the portfolio return might have been greater had hedging not been attempted.
There can be no assurance that a liquid market will exist at a time when a
Fund seeks to close out a futures contract or a futures option position. Most
futures exchanges and boards of trade limit the amount of fluctuation
permitted in futures contract prices during a

                                                  April  , 1999 Prospectus   43
<PAGE>
 
single day; once the daily limit has been reached on a particular contract, no
trades may be made that day at a price beyond that limit. In addition, certain
of these instruments are relatively new and without a significant trading
history. As a result, there is no assurance that an active secondary market
will develop or continue to exist. Lack of a liquid market for any reason may
prevent a Fund from liquidating an unfavorable position, and the Fund would
remain obligated to meet margin requirements until the position is closed.
   
  Index Futures The Growth, Target, Opportunity, Innovation, Emerging Markets,
International Developed, International, Renaissance, Core Equity, Mid-Cap
Equity, International Growth, Enhanced Equity, Structured Emerging Markets,
Tax-Efficient Structured Emerging Markets, Tax-Efficient Equity, and Balanced
Funds may purchase and sell futures contracts on various securities indexes
("Index Futures") and related options for hedging purposes and for investment
purposes. A Fund's purchase and sale of Index Futures is limited to contracts
and exchanges which have been approved by the Commodity Futures Trading
Commission ("CFTC").     
 
  Each of the Emerging Markets, International Developed, International,
International Growth, Structured Emerging Markets, and Tax-Efficient
Structured Emerging Markets Funds may invest to a significant degree in Index
Futures on stock indexes and related options (including those which may trade
outside of the United States) as an alternative to purchasing individual
stocks in order to adjust the Fund's exposure to a particular market. These
Funds may invest in Index Futures and related options when a Portfolio Manager
believes that there are not enough attractive securities available to maintain
the standards of diversification and liquidity set for a Fund pending
investment in such securities if or when they do become available. Through the
use of Index Futures and related options, a Fund may diversify risk in its
portfolio without incurring the substantial brokerage costs which may be
associated with investment in the securities of multiple issuers. A Fund may
also avoid potential market and liquidity problems which may result from
increases in positions already held by the Fund.
 
  A Fund may close open positions on the futures exchanges on which Index
Futures are traded at any time up to and including the expiration day. All
positions which remain open at the close of the last business day of the
contract's life are required to settle on the next business day (based upon
the value of the relevant index on the expiration day), with settlement made
with the appropriate clearing house. Because the specific procedures for
trading foreign stock Index Futures on futures exchanges are still under
development, additional or different margin requirements as well as settlement
procedures may be applicable to foreign stock Index Futures at the time a Fund
purchases such instruments.
 
  Positions in Index Futures may be closed out by a Fund only on the futures
exchanges upon which the Index Futures are then traded. There can be no
assurance that a liquid market will exist for any particular contract at any
particular time. Also, the price of Index Futures may not correlate perfectly
with movement in the relevant index due to certain market distortions. First,
all participants in the futures market are subject to margin deposit and
maintenance requirements. Rather than meeting additional margin deposit
requirements, investors may close futures contracts through offsetting
transactions which could distort the normal relationship between the index and
futures markets. Second, the deposit requirements in the futures market are
less onerous than margin requirements in the securities market, and as a
result, the futures market may attract more speculators than does the
securities market. Increased participation by speculators in the futures
market may also cause temporary price distortions. In addition, trading hours
for foreign stock Index Futures may not correspond perfectly to hours of
trading on the foreign exchange to which a particular foreign stock Index
Future relates. This may result in a disparity between the price of Index
Futures and the value of the relevant index due to the lack of continuous
arbitrage between the Index Futures price and the value of the underlying
index.
 
 
44   PIMCO Funds: Multi-Manager Series
<PAGE>
 
  The Funds may only enter into futures contracts or futures options which are
standardized and traded on a U.S. or foreign exchange or board of trade, or
similar entity, or quoted on an automated quotation system. Each Fund may use
futures contracts and related options for "bona fide hedging" purposes, as
such term is defined in applicable regulations of the CFTC, or, with respect
to positions in futures and related options that do not qualify as "bona fide
hedging" positions, may enter such positions only to the extent that aggregate
initial margin deposits plus premiums paid by it for open futures option
positions, less the amount by which any such positions are "in-the-money,"
would not exceed 5% of the Fund's net assets.
 
Short Sales
 
  Each Fund may from time to time make short sales involving securities held
in the Fund's portfolio or which the Fund has the right to acquire without the
payment of further consideration. For these purposes, a Fund may also hold or
have the right to acquire securities which, without the payment of any further
consideration, are convertible into or exchangeable for the securities sold
short. Short sales expose the Fund to the risk that it will be required to
acquire, convert or exchange securities to cover its short position at a time
when the securities sold short have appreciated in value, thus resulting in a
loss to the Fund.
 
When-Issued, Delayed Delivery and Forward Commitment Transactions
 
  Each Fund may purchase securities which it is eligible to purchase on a
when-issued basis, may purchase and sell such securities for delayed delivery
and may make contracts to purchase securities for a fixed price at a future
date beyond normal settlement time (forward commitments). When-issued
transactions, delayed delivery purchases and forward commitments involve a
risk of loss if the value of the securities declines prior to the settlement
date, which risk is in addition to the risk of decline in the value of the
Fund's other assets. Typically, no income accrues on securities a Fund has
committed to purchase prior to the time delivery of the securities is made,
although a Fund may earn income on securities it has segregated.
 
Mortgage-Related and Other Asset-Backed Securities
 
  All Funds that may purchase debt securities for investment purposes (and in
particular the Balanced Fund) may invest in mortgage-related securities, and
in other asset-backed securities (unrelated to mortgage loans) that are
offered to investors currently or in the future. The value of some mortgage-
related or asset-backed securities in which the Funds invest may be
particularly sensitive to changes in prevailing interest rates, and, like
other fixed income investments, the ability of a Fund to successfully utilize
these instruments may depend in part upon the ability of the Portfolio Manager
to forecast interest rates and other economic factors correctly.
 
  Mortgage Pass-Through Securities are securities representing interests in
"pools" of mortgage loans secured by residential or commercial real property
in which payments of both interest and principal on the securities are
generally made monthly, in effect "passing through" monthly payments made by
the individual borrowers on the mortgage loans which underlie the securities
(net of fees paid to the issuer or guarantor of the securities). Early
repayment of principal on some mortgage-related securities (arising from
prepayments of principal due to sale of the underlying property, refinancing,
or foreclosure, net of fees and costs which may be incurred) may expose a Fund
to a lower rate of return upon reinvestment of principal. Also, if a security
subject to prepayment has been purchased at a premium, the value of the
premium would be lost in the event of prepayment. Like other fixed income
securities, when interest rates rise, the value of a mortgage-related security
generally will decline; however, when interest rates are declining, the value
of mortgage-related securities with prepayment features may not increase as
much as other fixed income securities. The rate of prepayments on underlying
mortgages will affect the price and volatility of a mortgage-related security,
and may have

                                                  April  , 1999 Prospectus   45
<PAGE>
 
the effect of shortening or extending the effective maturity of the security
beyond what was anticipated at the time of purchase. To the extent that
unanticipated rates of prepayment on underlying mortgages increase the
effective maturity of a mortgage-related security, the volatility of such
security can be expected to increase.
 
  Payment of principal and interest on some mortgage pass-through securities
(but not the market value of the securities themselves) may be guaranteed by
the full faith and credit of the U.S. Government (in the case of securities
guaranteed by the Government National Mortgage Association ("GNMA")); or
guaranteed by agencies or instrumentalities of the U.S. Government (in the
case of securities guaranteed by the Federal National Mortgage Association
("FNMA") or the Federal Home Loan Mortgage Corporation ("FHLMC"), which are
supported only by the discretionary authority of the U.S. Government to
purchase the agency's obligations). Mortgage-related securities created by
non-governmental issuers (such as commercial banks, savings and loan
institutions, private mortgage insurance companies, mortgage bankers and other
secondary market issuers) may be supported by various forms of insurance or
guarantees, including individual loan, title, pool and hazard insurance and
letters of credit, which may be issued by governmental entities, private
insurers or the mortgage poolers.
 
  Collateralized Mortgage Obligations ("CMOs") are hybrid mortgage-related
instruments. Similar to a bond, interest and pre-paid principal on a CMO are
paid, in most cases, on a monthly basis. CMOs may be collateralized by whole
mortgage loans but are more typically collateralized by portfolios of mortgage
pass-through securities guaranteed by GNMA, FHLMC, or FNMA. CMOs are
structured into multiple classes, with each class bearing a different stated
maturity. Monthly payments of principal, including prepayments, are first
returned to investors holding the shortest maturity class; investors holding
the longer maturity classes receive principal only after the first class has
been retired. CMOs that are issued or guaranteed by the U.S. Government or by
any of its agencies or instrumentalities will be considered U.S. Government
securities by a Fund, while other CMOs, even if collateralized by U.S.
Government securities, will have the same status as other privately issued
securities for purposes of applying a Fund's diversification tests.
 
  Commercial Mortgage-Backed Securities include securities that reflect an
interest in, and are secured by, mortgage loans on commercial real property.
The market for commercial mortgage-backed securities developed more recently
and in terms of total outstanding principal amount of issues is relatively
small compared to the market for residential single-family mortgage-backed
securities. Many of the risks of investing in commercial mortgage-backed
securities reflect the risks of investing in the real estate securing the
underlying mortgage loans. These risks reflect the effects of local and other
economic conditions on real estate markets, the ability of tenants to make
loan payments, and the ability of a property to attract and retain tenants.
Commercial mortgage-backed securities may be less liquid and exhibit greater
price volatility than other types of mortgage-related or asset-backed
securities.
 
  Mortgage-Related Securities include securities other than those described
above that directly or indirectly represent a participation in, or are secured
by and payable from, mortgage loans on real property, such as CMO residuals or
stripped mortgage-backed securities ("SMBS"), and may be structured in classes
with rights to receive varying proportions of principal and interest.
 
  A common type of SMBS will have one class receiving some of the interest and
most of the principal from the mortgage assets, while the other class will
receive most of the interest and the remainder of the principal. In the most
extreme case, one class will receive all of the interest (the interest-only,
or "IO" class), while the other class will receive all of the principal (the
principal-only, or "PO" class). The yield to maturity on an IO class is
extremely sensitive to the rate of principal payments (including prepayments)
on the related underlying mortgage assets, and a rapid rate of

 
46   PIMCO Funds: Multi-Manager Series
<PAGE>
 
principal payments may have a material adverse effect on a Fund's yield to
maturity from these securities. For a discussion of the characteristics of
some of these instruments, see the Statement of Additional Information.
 
Convertible Securities
 
  Many of the Funds may invest in convertible securities. Convertible
securities are generally preferred stocks or fixed income securities that are
convertible into common stock at either a stated price or a stated rate. The
price of the convertible security will normally vary in some proportion to
changes in the price of the underlying common stock because of this conversion
feature. A convertible security will normally also provide a fixed income
stream. For this reason, the convertible security may not decline in price as
rapidly as the underlying common stock.
 
  A Fund's Portfolio Manager will select convertible securities to be
purchased by the Fund based primarily upon its evaluation of the fundamental
investment characteristics and growth prospects of the issuer of the security.
As a fixed income security, a convertible security tends to increase in market
value when interest rates decline and to decrease in value when interest rates
rise. While convertible securities generally offer lower interest or dividend
yields than non-convertible fixed income securities of similar quality, their
value tends to increase as the market value of the underlying stock increases
and to decrease when the value of the underlying stock decreases.
 
  The Renaissance Fund may invest in so-called "synthetic convertible
securities," which are composed of two or more different securities whose
investment characteristics, taken together, resemble those of convertible
securities. For example, the Renaissance Fund may purchase a non-convertible
debt security and a warrant or option. The synthetic convertible differs from
the true convertible security in several respects. Unlike a true convertible
security, which is a single security having a unitary market value, a
synthetic convertible comprises two or more separate securities, each with its
own market value. Therefore, the "market value" of a synthetic convertible is
the sum of the values of its fixed income component and its convertible
component. For this reason, the values of a synthetic convertible and a true
convertible security may respond differently to market fluctuations.
 
Investment in Investment Companies
 
  The Emerging Markets, International Developed, International, and
International Growth Funds may each invest up to 10% of its assets in
securities of other investment companies, such as closed-end management
investment companies, or in pooled accounts or other investment vehicles which
invest in foreign markets. As a shareholder of an investment company, these
Funds may indirectly bear service and other fees which are in addition to the
fees the Funds pay their service providers.
 
Credit and Market Risk of Fixed Income Securities
 
  All fixed income securities are subject to market risk and credit risk.
Market risk relates to market-induced changes in a security's value, usually
as a result of changes in interest rates. The value of a Fund's investments in
fixed income securities will change as the general level of interest rates
fluctuate. During periods of falling interest rates, the value of a Fund's
fixed income securities generally rise. Conversely, during periods of rising
interest rates, the value of a Fund's fixed income securities generally
decline. Credit risk relates to the ability of the issuer to make payments of
principal and interest.
 
                                                  April  , 1999 Prospectus   47
<PAGE>
 
Money Market Instruments
 
  Each of the Funds may invest at least a portion of its assets in the
following kinds of money market instruments:
 
    (1) short-term U.S. Government securities;
 
    (2) certificates of deposit, bankers' acceptances and other bank
        obligations rated in the two highest rating categories by at least
        two NRSROs, or, if rated by only one NRSRO, in such agency's two
        highest grades, or, if unrated, determined to be of comparable
        quality by the Adviser or a Portfolio Manager. Bank obligations
        must be those of a bank that has deposits in excess of $2 billion
        or that is a member of the Federal Deposit Insurance Corporation. A
        Fund may invest in obligations of U.S. branches or subsidiaries of
        foreign banks ("Yankee dollar obligations") or foreign branches of
        U.S. banks ("Eurodollar obligations");
 
    (3) commercial paper rated in the two highest rating categories by at
        least two NRSROs, or, if rated by only one NRSRO, in such agency's
        two highest grades, or, if unrated, determined to be of comparable
        quality by the Adviser or a Portfolio Manager;
 
    (4) corporate obligations with a remaining maturity of 397 days or less
        whose issuers have outstanding short-term debt obligations rated in
        the highest rating category by at least two NRSROs, or, if rated by
        only one NRSRO, in such agency's highest grade, or, if unrated,
        determined to be of comparable quality by the Adviser or a
        Portfolio Manager; and
 
    (5) repurchase agreements with domestic commercial banks or registered
        broker-dealers.
 
Illiquid Securities
 
  Each Fund may invest in securities that are illiquid so long as no more than
15% of the net assets of the Fund (taken at market value at the time of
investment) would be invested in such securities. Certain illiquid securities
may require pricing at fair value as determined in good faith under the
supervision of the Board of Trustees. A Portfolio Manager may be subject to
significant delays in disposing of illiquid securities, and transactions in
illiquid securities may entail registration expenses and other transaction
costs that are higher than those for transactions in liquid securities.
 
  The term "illiquid securities" for this purpose means securities that cannot
be disposed of within seven days in the ordinary course of business at
approximately the amount at which a Fund has valued the securities. Illiquid
securities are considered to include, among other things, written over-the-
counter options, securities or other liquid assets being used as cover for
such options, repurchase agreements with maturities in excess of seven days,
certain loan participation interests, fixed time deposits which are not
subject to prepayment or provide for withdrawal penalties upon prepayment
(other than overnight deposits), securities that are subject to legal or
contractual restrictions on resale (such as privately placed debt securities),
and other securities which legally or in the Adviser's or a Portfolio
Manager's opinion may be deemed illiquid (not including securities issued
pursuant to Rule 144A under the Securities Act of 1933 and certain commercial
paper that the Adviser or a Portfolio Manager has determined to be liquid
under procedures approved by the Board of Trustees).
 
Service Systems -- Year 2000 Problem
 
  Many of the services provided to the Funds depend on the smooth functioning
of computer systems. Many systems in use today cannot distinguish between the
year 1900 and the year 2000. Should any of the service systems fail to process
information properly, that could have an adverse impact on the Funds'
operations and services provided to shareholders. The Adviser, Distributor,
Shareholder Servicing and Transfer Agent, Custodian, and certain other service
providers to the Funds have reported that each is working toward mitigating
the risks associated with the so-called "year 2000

 
48   PIMCO Funds: Multi-Manager Series
<PAGE>
 
problem." However, there can be no assurance that the problem will be
corrected in all respects and that the Funds' operations and services provided
to shareholders will not be adversely affected, nor can there be any assurance
that the year 2000 problem will not have an adverse effect on the entities
whose securities are held by the Funds or on domestic or global equity markets
or economies, generally.
 
"Fundamental" Policies
   
  The investment objective of each of the Growth, Target, Opportunity,
Innovation, International, Renaissance, International Growth, Value 25, Tax-
Efficient Structured Emerging Markets, and Tax-Efficient Equity Funds
described in this Prospectus may be changed by the Board of Trustees without
shareholder approval. The investment objective of each other Fund is
fundamental and may not be changed without shareholder approval by vote of a
majority of the outstanding shares of that Fund. If there is a change in a
Fund's investment objective, including a change approved by shareholder vote,
shareholders should consider whether the Fund remains an appropriate
investment in light of their then current financial position and needs.     
 
                            MANAGEMENT OF THE TRUST
 
  The business affairs of the Trust are managed under the direction of the
Board of Trustees. Information about the Trustees and the Trust's executive
officers may be found in the Statement of Additional Information under the
heading "Management of the Trust."
 
Investment Adviser
   
  PIMCO Advisors serves as investment adviser to the Funds pursuant to an
investment advisory agreement with the Trust. PIMCO Advisors is a Delaware
limited partnership organized in 1987. PIMCO Advisors provides investment
management and advisory services to private accounts of institutional and
individual clients and to mutual funds. Total assets under management by PIMCO
Advisors and its subsidiary partnerships as of December 31, 1998 were
approximately $244.2 billion.     
 
  The general partners of PIMCO Advisors are PIMCO Partners, G.P. and PIMCO
Advisors Holdings L.P. ("PAH"). PIMCO Partners, G.P. is a general partnership
between PIMCO Holding LLC, a Delaware limited liability company and an
indirect wholly-owned subsidiary of Pacific Life Insurance Company, and PIMCO
Partners LLC, a California limited liability company controlled by the current
Managing Directors and two former Managing Directors of Pacific Investment
Management. PIMCO Partners, G.P. is the sole general partner of PAH. PIMCO
Advisors is governed by a Management Board, which exercises substantially all
of the governance powers of the general partner and serves as the functional
equivalent of a board of directors.
   
  PIMCO Advisors' address is 800 Newport Center Drive, Newport Beach,
California 92660. PIMCO Advisors is registered as an investment adviser with
the SEC. PIMCO Advisors currently has seven subsidiary investment adviser
partnerships, the following six of which manage one or more of the Funds:
Blairlogie, Cadence, Columbus Circle, NFJ, Pacific Investment Management, and
Parametric. [On or about March 31, 1999, it is anticipated that PIMCO Advisors
will sell substantially all of its ownership interest in Blairlogie. See
"Portfolio Managers--Blairlogie" below.]     
 
  Under the investment advisory agreement, PIMCO Advisors, subject to the
supervision of the Board of Trustees, is responsible for providing advice and
guidance with respect to the Funds and for managing, either directly or
through others selected by the Adviser, the investment of the Funds. PIMCO
Advisors also furnishes to the Board of Trustees periodic reports on the
investment performance of each Fund.
 
                                                  April  , 1999 Prospectus   49
<PAGE>
 
Portfolio Managers
   
  Pursuant to portfolio management agreements, PIMCO Advisors employs
affiliated firms to serve as Portfolio Managers for the Funds, except that the
PIMCO Equity Advisors Division of PIMCO Advisors (also referred to as a
"Portfolio Manager") manages the Growth, Target, Opportunity and Innovation
Funds. PIMCO Advisors (and not the Funds or the Trust) compensates the
Portfolio Managers it retains from its advisory fee. Each Portfolio Manager
has full investment discretion and makes all determinations with respect to
the investment of a Fund's assets, or, for the Balanced Fund, with respect to
the portion of the Fund's assets allocated to the Portfolio Manager for
investment, and makes all determinations respecting the purchase and sale of a
Fund's securities and other investments. If a separate firm ceases to serve as
Portfolio Manager for a Fund, PIMCO Advisors will either assume full
responsibility for the management of that Fund, or retain a new portfolio
manager subject to the approval of the Trustees and, if required, the Fund's
shareholders.     
   
  PIMCO Equity Advisors Division of PIMCO Advisors manages the Growth, Target,
Innovation, and Opportunity Funds. Information about PIMCO Advisors is
provided above under "Investment Adviser."     
   
  Kenneth W. Corba, the Chief Investment Officer of the PIMCO Equity Advisors
Division, is primarily responsible for the day-to-day portfolio management of
the Growth and Target Funds. Mr. Corba has 14 years' investment management
experience. Mr. Corba was most recently Chief Investment Officer of Eagle
Asset Management, and prior to that he was a principal and a Senior Vice
President at Stein Roe and Farnham. Mr. Corba received his bachelor's degree
and MBA from the University of Michigan. He is a chartered financial analyst.
Michael F. Gaffney, the Managing Director of the PIMCO Equity Advisors
Division, is primarily responsible for the day-to-day management of the
Opportunity Fund. He has [ ] years' investment management experience. Mr.
Gaffney previously served as a Senior Vice President of Alliance Capital
Management L.P. He received his bachelor's degree from St. John's University
and his MBA from New York University. Dennis P. McKechnie, a Portfolio Manager
at the PIMCO Equity Advisors Division, has primary responsibility for the day-
to-day portfolio management of the Innovation Fund. He previously shared
responsibility for the Fund as a Portfolio Manager at Columbus Circle. Mr.
McKechnie has 8 years' investment management experience. He received his
bachelor's degree from Purdue University and his MBA from Columbia University.
       
  Blairlogie manages the Emerging Markets, International Developed, and
International Funds (the "Blairlogie Funds"). Blairlogie is an investment
management firm, organized as a limited partnership under the laws of the
United Kingdom, with two general partners and one limited partner. The general
partners are PIMCO Advisors, which serves as the supervisory partner, and
Blairlogie Holdings Limited, a wholly owned subsidiary of PIMCO Advisors,
which serves as the managing partner. The limited partner is Blairlogie
Partners L.P., a limited partnership, the general partner of which is Pacific
Asset Management LLC (a subsidiary of Pacific Life Insurance Company), and the
limited partners of which are the principal executive officers of Blairlogie
Capital Management. Blairlogie Capital Management Ltd., the predecessor
investment adviser to Blairlogie, commenced operations in 1992. Accounts
managed by Blairlogie had combined assets as of December 31, 1998 of
approximately $900 million. Blairlogie's address is 4th Floor, 125 Princes
Street, Edinburgh EH2 4AD, Scotland. Blairlogie is registered as an investment
adviser with the SEC in the United States and with the Investment Management
Regulatory Organisation ("IMRO") in the United Kingdom.     
 
  James Smith is primarily responsible for the day-to-day management of the
Blairlogie Funds. Mr. Smith is a Managing Director and the Chief Investment
Officer of Blairlogie and is responsible for managing an investment team of
six professionals who, in turn, specialize in selection of stocks within
Europe, Asia, and the Americas, and in currency and derivatives. He previously
served as a Senior Portfolio Manager at Murray Johnstone in Glasgow, Scotland,
responsible for international investment management for North American
clients, and at Schroder Investment Management in
 
50 PIMCO Funds: Multi-Manager Series
 
<PAGE>
 
London. Mr. Smith received his bachelor's degree in Economics from London
University and his MBA from Edinburgh University. He is an Associate of the
Institute of Investment Management and Research.
   
  [It is anticipated that PIMCO Advisors will sell substantially all of its
ownership interest in Blairlogie to Alleghany Asset Management, Inc. on or
about March 31, 1999 (the "Blairlogie Transaction"). The Blairlogie
Transaction is subject to a number of conditions, including approval by the
shareholders of the Emerging Markets and International Developed Funds.     
 
  In connection with the anticipated Blairlogie Transaction, it is proposed
that the Emerging Markets and International Developed Funds (the "Transferring
Funds") will transfer all of their assets and liabilities to newly formed
series of Alleghany Funds to be managed by Blairlogie (the proposed
transactions are referred to as "Reorganizations"). The proposed
Reorganizations are subject to a number of conditions, including approval by
the Trust's Board of Trustees and the shareholders of the Transferring Funds.
   
  Subject to the approval of the shareholders of the International Fund, PIMCO
Advisors has determined to continue to retain Blairlogie as the Portfolio
Manager of the Fund subsequent to the Blairlogie Transaction pursuant to a new
portfolio management agreement between PIMCO Advisors and Blairlogie.]     
 
  This Prospectus will be supplemented or revised if any of these events
involving Blairlogie and the Blairlogie Funds do not occur substantially in
accordance with the schedule outlined above.
   
  Cadence manages the Capital Appreciation, Mid-Cap Growth, Micro-Cap Growth,
and Small-Cap Growth Funds, as well as a portion of the Common Stock Segment
of the Balanced Fund (the "Cadence Funds"). Cadence is an investment
management firm organized as a general partnership. Cadence has two partners:
PIMCO Advisors as the supervisory partner, and Cadence Capital Management Inc.
as the managing partner. Cadence Capital Management Corporation, the
predecessor investment adviser to Cadence, commenced operations in 1988.
Accounts managed by Cadence had combined assets as of December 31, 1998 of
approximately $7.4 billion. Cadence's address is Exchange Place, 53 State
Street, Boston, Massachusetts 02109. Cadence is registered as an investment
adviser with the SEC.     
 
  David B. Breed, William B. Bannick, Katherine A. Burdon, and Peter B.
McManus are primarily responsible for the day-to-day management of the Cadence
Funds. Mr. Breed is a Managing Director, the Chief Executive Officer, and a
founding partner of Cadence, and has 25 years' investment management
experience. He has been the driving force in developing the firm's growth-
oriented stock screening and selection process and has been with Cadence (or
its predecessor) since its inception. Mr. Breed graduated from the University
of Massachusetts and received his MBA from the Wharton School of Business. He
is a Chartered Financial Analyst. Mr. Bannick is a Managing Director and
Executive Vice President of Cadence and has 13 years' investment management
experience. He previously served as Executive Vice President of George D.
Bjurman & Associates and as Supervising Portfolio Manager of Trinity
Investment Management Corporation. Mr. Bannick joined the predecessor of
Cadence in 1992. He graduated from the University of Massachusetts and
received his MBA from Boston University. Mr. Bannick is a Chartered Financial
Analyst. Ms. Burdon is a Managing Director and Portfolio Manager of Cadence
and has 10 years' investment management experience. She previously served as a
Vice President and Portfolio Manager of The Boston Company. Ms. Burdon joined
the predecessor of Cadence in 1993. She graduated from Stanford University and
received a Master of Science degree from Northeastern University. Ms. Burdon
is a Chartered Financial Analyst and Certified Public Accountant. Mr. McManus
is Director of Fund Management of Cadence and has 21 years' investment
management experience. He previously served as a Vice President of Bank of
Boston. Mr. McManus joined Cadence in 1994. He graduated from the University
of Massachusetts, and he is certified as a Financial Planner.

                                                  April  , 1999 Prospectus   51
<PAGE>
 
   
  Columbus Circle manages the Renaissance, Core Equity, Mid-Cap Equity, and
International Growth Funds (the "Columbus Circle Funds"). Columbus Circle is
an investment management firm organized as a general partnership. Columbus
Circle has two partners: PIMCO Advisors as the supervisory partner, and
Columbus Circle Investors Management Inc. as the managing partner. Columbus
Circle Investors Division of Thomson Advisory Group L.P. ("TAG"), the
predecessor investment adviser to Columbus Circle, commenced operations in
1975. Accounts managed by Columbus Circle had combined assets as of December
31, 1998 of approximately $9.6 billion. Columbus Circle's address is Metro
Center, One Station Place, 8th Floor, Stamford, Connecticut 06902. Columbus
Circle is registered as an investment adviser with the SEC.     
 
  At the center of Columbus Circle's equity investment strategy is its theory
of Positive Momentum & Positive Surprise. This theory asserts that a good
company doing better than generally expected will experience a rise in its
stock price. And, conversely, a company falling short of expectations will
experience a drop in its stock price. Based on this theory, Columbus Circle
attempts to manage the Columbus Circle Funds with a view to investing in
growing companies that are surprising the market with business results that
are better than anticipated.
   
  Investment decisions made by Columbus Circle are generally made by one or
more committees, although the following individuals have primary
responsibility for the noted Columbus Circle Funds. Clifford G. Fox is
primarily responsible for the day-to-day management of the Renaissance and
International Growth Funds. Mr. Fox, a Managing Director of Columbus Circle,
has 17 years of investment management experience. He received his bachelor's
degree from the University of Pennsylvania and his MBA from New York
University, and he is a Chartered Financial Analyst. Anthony Rizza is
primarily responsible for the day-to-day management of the Core Equity Fund.
Mr. Rizza, a Managing Director of Columbus Circle, has 12 years of investment
management experience. He received his bachelor's degree from the University
of Connecticut, and he is a Chartered Financial Analyst. Amy H. Hogan is
primarily responsible for the day-to-day management of the Mid-Cap Equity
Fund. Ms. Hogan, a Managing Director of Columbus Circle, has 13 years of
investment management experience. She received her bachelor's degree and MBA
from the University of Wisconsin, and she is a Chartered Financial Analyst.
       
  NFJ manages the Equity Income, Value, Value 25, and Small-Cap Value Funds,
as well as a portion of the Common Stock Segment of the Balanced Fund. NFJ is
an investment management firm organized as a general partnership. NFJ has two
partners: PIMCO Advisors as the supervisory partner, and NFJ Management Inc.
as the managing partner. NFJ Investment Group, Inc., the predecessor
investment adviser to NFJ, commenced operations in 1989. Accounts managed by
NFJ had combined assets as of December 31, 1998 of approximately $2.4 billion.
NFJ's address is 2121 San Jacinto, Suite 1840, Dallas, Texas 75201. NFJ is
registered as an investment adviser with the SEC.     
 
  Chris Najork and Benjamin Fischer are responsible for the day-to-day
management of the Equity Income Fund, and the portion of the Common Stock
Segment of the Balanced Fund allocated to NFJ. Mr. Najork is a Managing
Director and a founding partner of NFJ and has 30 years' experience
encompassing equity research and portfolio management. He received his
bachelor's degree and MBA from Southern Methodist University, and he is a
Chartered Financial Analyst. Mr. Fischer is a Managing Director and a founding
partner of NFJ and has 32 years' experience encompassing equity research and
portfolio management. He received his bachelor's degree from Oklahoma
University and his MBA from the New York University Graduate School of
Business. He is a Chartered Financial Analyst. Messrs. Najork, Fischer and
Paul A. Magnuson are primarily responsible for the day-to-day management of
the Value Fund and the Small-Cap Value Fund. Mr. Magnuson, a research analyst
at NFJ, has 13 years' experience in equity research and portfolio management.
He received his bachelor's degree in Finance from the University of Nebraska-
Lincoln. Messrs. Najork, Fischer, and Cliff Hoover are primarily responsible
for the day-to-day management of the Value 25 Fund. Mr. Hoover is a principal
at NFJ and has 24 years' experience in portfolio management and banking. He
received his bachelor's degree and MBA from Texas Tech University. He is a
Chartered Financial Analyst.
 
 PIMCO Funds: Multi-Manager Series
<PAGE>
 
   
  Pacific Investment Management manages the Fixed Income Securities Segment of
the Balanced Fund. Pacific Investment Management is an investment management
firm organized as a general partnership. Pacific Investment Management has two
partners: PIMCO Advisors as the supervisory partner, and PIMCO Management,
Inc. as the managing partner. Pacific Investment Management Company, the
predecessor investment adviser to Pacific Investment Management, commenced
operations in 1971. Pacific Investment Management had approximately $157.7
billion of assets under management as of December 31, 1998. Pacific Investment
Management's address is 840 Newport Center Drive, Suite 300, Newport Beach,
California 92660. Pacific Investment Management is registered as an investment
adviser with the SEC and as a commodity trading advisor with the CFTC.     
 
  William H. Gross is responsible for the day-to-day management of the Fixed
Income Securities Segment of the Balanced Fund. Mr. Gross is a founder and a
Managing Director of Pacific Investment Management and has been associated
with Pacific Investment Management or its predecessor for more than 28 years.
He has extensive investment experience in both credit research and fixed
income portfolio management. He received his bachelor's degree from Duke
University and his MBA from UCLA Graduate School of Business. Mr. Gross is a
Chartered Financial Analyst and a member of The Los Angeles Society of
Financial Analysts.
   
  Parametric manages the Enhanced Equity, Structured Emerging Markets, Tax-
Efficient Structured Emerging Markets, and Tax-Efficient Equity Funds (the
"Parametric Funds"). Parametric is an investment management firm organized as
a general partnership. Parametric has two partners: PIMCO Advisors as the
supervisory partner, and Parametric Management Inc. as the managing partner.
Parametric Portfolio Associates, Inc., the predecessor investment adviser to
Parametric, commenced operations in 1987. Accounts managed by Parametric had
combined assets as of December 31, 1998 of approximately $3.4 billion.
Parametric's address is 7310 Columbia Center, 701 Fifth Avenue, Seattle,
Washington 98104-7090. Parametric is registered as an investment adviser with
the SEC and as a commodity trading advisor with the CFTC.     
   
  David Stein, Tom Seto, and Cliff Quisenberry are primarily responsible for
the day-to-day management of the Parametric Funds. Mr. Stein is a Managing
Director of Parametric and has been associated with Parametric since June,
1996. He also directs research and product development for Parametric. Mr.
Stein graduated with bachelor's and master's degrees in Applied Mathematics
from the University of Witwatersrand, South Africa, and received a Ph.D. in
Applied Mathematics from Harvard University. Prior to joining Parametric, Mr.
Stein served as the Director of Investment Research at GTE Investment
Management, Director of Active Equity Strategies at the Vanguard Group, and
Director of Quantitative Portfolio Management and Research at IBM. Mr. Seto is
a Vice President of Parametric and has 7 years of experience in managing
structured equity portfolios. Prior to joining Parametric, he served as the
Head of U.S. Equity Index Investments at Barclays Global Investors. Mr. Seto
graduated from the University of Washington with a bachelor's degree in
Electrical Engineering, and from the University of Chicago with an MBA in
Finance. Mr. Quisenberry, a Vice President of Parametric, has 9 years'
experience as a Portfolio Manager and has been with Parametric since 1994. He
previously served as a Vice President and Portfolio Manager at Cutler & Co.,
and as a Security Analyst and Portfolio Manager at Fred Alger Management.
Mr. Quisenberry graduated from Yale University with a bachelor's degree in
Economics. He is a Chartered Financial Analyst.     
 
  Registration as an investment adviser with the SEC does not involve
supervision by the SEC over investment advice, and registration with the CFTC
as a commodity trading adviser does not involve supervision by the CFTC over
commodities trading. The portfolio management agreements are not exclusive,
and Blairlogie, Cadence, Columbus Circle, NFJ, Parametric, and Pacific
Investment Management may provide, and currently are providing, investment
management services to other clients, including other investment companies.
                                                   April  , 1999 Prospectus   53
                                                                             
<PAGE>
 
Fund Administrator
 
  PIMCO Advisors also serves as administrator (the "Administrator") for the
Funds' Institutional Class and Administrative Class shares pursuant to an
administration agreement with the Trust. The Administrator provides or
procures administrative services for Institutional Class and Administrative
Class shareholders of the Funds, which include clerical help and accounting,
bookkeeping, internal audit services and certain other services required by
the Funds, and preparation of reports to the Funds' shareholders and
regulatory filings. The Administrator has retained Pacific Investment
Management to provide such services as sub-administrator. The Administrator
and/or the sub-administrator may also retain other affiliates to provide
certain of these services. In addition, the Administrator, at its own expense,
arranges for the provision of legal, audit, custody, transfer agency
(including sub-transfer agency and other administrative services) and other
services necessary for the ordinary operation of the Funds, and is responsible
for the costs of registration of the Trust's shares and the printing of
prospectuses and shareholder reports for current shareholders.
 
  The Funds (and not the Administrator) are responsible for the following
expenses: (i) salaries and other compensation of any of the Trust's executive
officers and employees who are not officers, directors, stockholders, or
employees of PIMCO Advisors, Pacific Investment Management, or their
subsidiaries or affiliates; (ii) taxes and governmental fees; (iii) brokerage
fees and commissions and other portfolio transaction expenses; (iv) the costs
of borrowing money, including interest expenses; (v) fees and expenses of the
Trustees who are not "interested persons" of the Adviser, any Portfolio
Manager, or the Trust, and any counsel retained exclusively for their benefit;
(vi) extraordinary expenses, including costs of litigation and indemnification
expenses; (vii) expenses which are capitalized in accordance with generally
accepted accounting principles; and (viii) any expenses allocated or allocable
to a specific class of shares, which include service and/or distribution fees
payable with respect to the Administrative Class shares, and may include
certain other expenses as permitted by the Trust's Multiple Class Plan adopted
pursuant to Rule 18f-3 under the Investment Company Act of 1940 (the "1940
Act"), subject to review and approval by the Trustees.
 
Advisory and Administrative Fees
 
  The Funds feature fixed advisory and administrative fees. For providing or
arranging for the provision of investment advisory services to the Funds as
described above, PIMCO Advisors receives monthly fees from each Fund at an
annual rate based on the average daily net assets of the Fund as follows:
 
<TABLE>   
<CAPTION>
                                                                      Advisory
   Fund                                                               Fee Rate
   ----                                                               --------
   <S>                                                                <C>
   Capital Appreciation, Mid-Cap Growth, Equity Income, Value,
    Enhanced Equity, Structured Emerging Markets, Tax-Efficient
    Structured Emerging Markets, Tax-Efficient Equity, and
    Balanced Funds...................................................    .45%
   Growth and Value 25 Funds.........................................    .50%
   Target and International Funds....................................    .55%
   Core Equity Fund..................................................    .57%
   International Developed, Renaissance, and Small-Cap Value Funds...    .60%
   Mid-Cap Equity Fund...............................................    .63%
   Opportunity and Innovation Funds..................................    .65%
   Emerging Markets and International Growth Funds...................    .85%
   Small-Cap Growth Fund.............................................   1.00%
   Micro-Cap Growth Fund.............................................   1.25%
</TABLE>    
 
 
54   PIMCO Funds: Multi-Manager Series
<PAGE>
 
  For providing or procuring administrative services for the Funds as
described above, the Administrator receives monthly fees from each Fund at an
annual rate based on the average daily net assets attributable in the
aggregate to the Fund's Institutional Class and Administrative Class shares as
follows:
 
<TABLE>
<CAPTION>
                                                                 Administrative
   Fund                                                             Fee Rate
   ----                                                          --------------
   <S>                                                           <C>
   Emerging Markets, International Developed, International,
    International Growth, Structured Emerging Markets, and
    Tax-Efficient Structured Emerging Markets Funds.............      .50%
   All Other Funds..............................................      .25%
</TABLE>
   
  The investment advisory, administration, and sub-administration agreements
for the Funds may be terminated by the Trustees, PIMCO Advisors or Pacific
Investment Management (as the case may be) on 60 days' written notice. In
addition, these agreements may be terminated with regard to the Growth,
Target, Opportunity, Innovation, International and Renaissance Funds by a
majority of the Trustees that are not interested persons of the Trust, PIMCO
Advisors, or Pacific Investment Management (as the case may be), on 60 days'
written notice. Following their initial terms, the agreements will continue
from year to year if approved by the Trustees.     
   
  Pursuant to the portfolio management agreements between the Adviser and the
Portfolio Managers listed below, PIMCO Advisors (and not the Funds or the
Trust) pays each Portfolio Manager a fee based on a percentage of the average
daily net assets of the noted Funds as follows: Blairlogie--.40% for the
International Fund, .50% for the International Developed Fund, and .75% for
the Emerging Markets Fund; Cadence--.35% for the Capital Appreciation Fund,
 .35% for the Mid-Cap Growth Fund, .35% for the portion of the Common Stock
Segment of the Balanced Fund allocated to Cadence, .90% for the Small-Cap
Growth Fund, and 1.15% for the Micro-Cap Growth Fund; Columbus Circle--.38%
for the Renaissance Fund, .47% for the Core Equity Fund, .53% for the Mid-Cap
Equity Fund, and .75% for the International Growth Fund; NFJ--.35% for the
Equity Income Fund, .35% for the Value Fund, .35% for the portion of the
Common Stock Segment of the Balanced Fund allocated to NFJ, .40% for the Value
25 Fund, and .50% for the Small-Cap Value Fund; Pacific Investment
Management--.25% for the Fixed Income Securities Segment of the Balanced Fund;
and Parametric--.35% for the Enhanced Equity Fund, .35% for the Structured
Emerging Markets Fund, .35% for the Tax-Efficient Structured Emerging Markets
Fund, and .35% for the Tax-Efficient Equity Fund. PIMCO Advisors does not
retain a separate firm to serve as Portfolio Manager for the Growth, Target,
Opportunity, and Innovation Funds and retains all of the advisory fees it
earns from those Funds.     
 
Service and Distribution Fees
 
  The Trust has adopted an Administrative Services Plan and a Distribution
Plan (the "Plans") with respect to the Administrative Class shares of each
Fund except for the Emerging Markets, Capital Appreciation, and Small-Cap
Growth Funds, for which the Trust has adopted only an Administrative Services
Plan. Under the terms of the Plans, the Trust is permitted to reimburse, out
of the Administrative Class assets of each Fund, in an amount up to .25% on an
annual basis of the average daily net assets of that class, financial
intermediaries that provide services in connection with the distribution and
marketing of shares and/or the provision of certain shareholder services (in
the case of the Distribution Plan) or the administration of plans or programs
that use Fund shares as their funding medium (in the case of the
Administrative Services Plan), and to reimburse certain other related
expenses. Total reimbursements under the Plans may be paid in an amount up to
 .25% on an annual basis of the average daily net assets attributable to the
Administrative Class shares of each Fund. The same entity may not receive both
distribution and administrative services fees with respect to the same assets
but may with respect to separate assets receive fees under each Plan. Fees
paid pursuant to either Plan may be paid for shareholder services and the
maintenance of accounts, and therefore may constitute "service fees" for


                                                  April  , 1999 Prospectus   55
<PAGE>
 
purposes of applicable rules of the National Association of Securities
Dealers, Inc. Each Plan has been adopted in accordance with the requirements
of Rule 12b-1 under the 1940 Act and will be administered in accordance with
the provisions of that rule, except that shareholders will not have the voting
rights set forth in Rule 12b-1 with respect to the Administrative Services
Plan that they will have with respect to the Distribution Plan. For more
complete disclosure regarding the Plans and their terms, see the Statement of
Additional Information.
 
  Institutional and Administrative Class shares of the Trust may also be
offered through certain brokers and financial intermediaries ("service
agents") that have established a shareholder servicing relationship with the
Trust on behalf of their customers. The Trust pays no compensation to such
entities other than service fees paid with respect to Administrative Class
shares. Service agents may impose additional or different conditions on the
purchase or redemption of Fund shares by their customers and may charge their
customers transaction or other account fees on the purchase and redemption of
Fund shares. Each service agent is responsible for transmitting to its
customers a schedule of any such fees and information regarding any additional
or different conditions regarding purchases and redemptions. Shareholders who
are customers of service agents should consult their service agents for
information regarding these fees and conditions.
 
Distributor
 
  Shares of the Trust are distributed through PIMCO Funds Distributors LLC
(the "Distributor"), a wholly owned subsidiary of PIMCO Advisors. The
Distributor, located at 2187 Atlantic Street, Stamford, Connecticut 06902, is
a broker-dealer registered with the SEC.
 
                              PURCHASE OF SHARES
 
  With certain exceptions, each Fund may offer its shares in up to six
classes: Institutional Class, Administrative Class, Class A, Class B, Class C,
and Class D. This Prospectus relates only to the Institutional Class shares
and Administrative Class shares of the Funds. For information regarding Class
A, Class B, Class C, and Class D shares, see "Other Information--Multiple
Classes of Shares" below.
 
  Shares of the Institutional Class are offered primarily for direct
investment by investors such as pension and profit sharing plans, employee
benefit trusts, endowments, foundations, corporations, and high net worth
individuals (Institutional Class shares may also be offered through certain
financial intermediaries that charge their customers transaction or other fees
with respect to their customers' investments in the Funds). Shares of the
Administrative Class are offered primarily through employee benefit plan
alliances, broker-dealers, and other intermediaries, and each Fund pays
service and/or distribution fees to such entities for services they provide to
shareholders of that class.
 
  Except as described below under "Fund Reimbursement Fees," shares of either
the Institutional Class or the Administrative Class of the Funds may be
purchased at the relevant net asset value of that class without a sales charge
or other fee. The minimum initial investment for shares of either class is $5
million, except that the minimum initial investment for a registered
investment adviser purchasing Institutional Class shares for its clients
through omnibus accounts is $250,000 per Fund. Shares may also be offered to
clients of Blairlogie, Cadence, Columbus Circle, NFJ, Pacific Investment
Management, Parametric, and their affiliates, and to the benefit plans of
PIMCO Advisors and its affiliates. In addition, the minimum initial investment
does not apply to shares of the Institutional Class offered through fee-based
programs sponsored and maintained by a registered broker-dealer and approved
by the Distributor pursuant to which each investor pays an asset based fee at
an annual rate of at least .50% of the assets in the account to a financial
intermediary for investment advisory and/or administrative services.
 
 
56   PIMCO Funds: Multi-Manager Series
<PAGE>
 
  Pension and profit-sharing plans, employee benefit trusts and employee
benefit plan alliances and "wrap account" programs established with broker-
dealers or financial intermediaries may purchase shares of either class only
if the plan or program for which the shares are being acquired will maintain
an omnibus or pooled account for each Fund and will not require a Fund to pay
any type of administrative payment per participant account to any third party.
 
  The investment minimums discussed in this section and the limitations set
forth in "Investment Limitations" below do not apply to participants in PIMCO
Advisors Portfolio Strategies, a managed product sponsored by PIMCO Advisors.
 
Initial Investment
 
  An account may be opened by completing and signing a Client Registration
Application and mailing it to PIMCO Funds at the following address: 840
Newport Center Drive, Suite 300, Newport Beach, California 92660. A Client
Registration Application may be obtained by calling 1-800-800-0952.
 
  Except as provided below, purchases of Institutional Class and
Administrative Class shares can only be made by wiring federal funds to
Investors Fiduciary Trust Company (the "Transfer Agent"), 801 Pennsylvania,
Kansas City, Missouri 64105. Before wiring federal funds, the investor must
first telephone the Trust at 1-800-927-4648 to receive instructions for wire
transfer, and the following information will be requested: name of authorized
person; shareholder name; shareholder account number; name of Fund and share
class; amount being wired; and wiring bank name.
 
  Shares may be purchased without first wiring federal funds if the proceeds
of the investment are derived from an advisory account maintained by the
investor with PIMCO Advisors or one of its affiliates; from surrender or other
payment from an annuity, insurance, or other contract held by Pacific Life
Insurance Company; or from an investment by broker-dealers, institutional
clients or other financial intermediaries which have established a shareholder
servicing relationship with the Trust on behalf of their customers.
 
  A purchase order, together with payment in proper form, received by the
Transfer Agent prior to the close of regular trading (normally 4:00 p.m.,
Eastern time) on the New York Stock Exchange (the "Exchange"), on a day the
Trust is open for business, will be effected at that day's net asset value. An
order received after the close of regular trading on the Exchange will be
effected at the net asset value determined on the next business day. However,
orders received by certain retirement plans and other financial intermediaries
on a business day prior to the close of regular trading on the Exchange and
communicated to the Transfer Agent prior to 9:00 a.m., Eastern time, on the
following business day will be effected at the net asset value determined on
the prior business day. The Trust is "open for business" on each day the
Exchange is open for trading, which excludes the following holidays: New
Year's Day, Martin Luther King, Jr. Day, Presidents' Day, Good Friday,
Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.
Purchase orders will be accepted only on days on which the Trust is open for
business.
 
Additional Investments
 
  Additional investments may be made at any time at the relevant net asset
value for the particular class by calling the Trust and wiring federal funds
to the Transfer Agent as outlined above.
 
Fund Reimbursement Fees
 
  Investors in Institutional Class and Administrative Class shares of the
Structured Emerging Markets and Tax-Efficient Structured Emerging Markets
Funds are subject to a fee ("Fund Reimbursement Fee"), both at the time of
purchase and at the time of redemption, equal to 1.00% of the net asset value
of the shares purchased or redeemed. Fund Reimbursement


                                                  April  , 1999 Prospectus   57
<PAGE>
 
Fees are deducted automatically from the amount invested or the amount to be
received in connection with a redemption; the fees are not paid separately.
Fund Reimbursement Fees are paid to and retained by the Funds to defray
certain costs described below and no portion of such fees are paid to or
retained by the Adviser, the Distributor, or the Portfolio Manager. Fund
Reimbursement Fees are not sales loads or contingent deferred sales charges.
Reinvestment of dividends and capital gains distributions paid to shareholders
by the Funds are not subject to Fund Reimbursement Fees, but redemptions of
shares acquired by such reinvestments are subject to Fund Reimbursement Fees.
 
  The purpose of Fund Reimbursement Fees is to defray the costs associated
with investing the proceeds of the sale of shares to investors (in the case of
purchases) or the costs associated with the sale of portfolio securities to
satisfy redemption requests (in the case of redemptions), thus insulating
existing shareholders from such costs. The amount of a Fund Reimbursement Fee
represents the Portfolio Manager's estimate of the costs reasonably
anticipated to be incurred by the Funds in connection with the purchase or
sale of portfolio securities, including international stocks, associated with
an investor's purchase or redemption proceeds. These costs include brokerage
costs, market impact costs (i.e., the increase in market prices which may
result when a Fund purchases or sells thinly traded stocks), and the effect of
"bid/asked" spreads in international markets. Transaction costs incurred when
purchasing or selling stocks of companies in foreign countries, and
particularly emerging market countries, may be significantly higher than those
in more developed countries. This is due, in part, to less competition among
brokers, underutilization of technology on the part of foreign exchanges and
brokers, the lack of less expensive investment options (such as derivative
instruments), and lower levels of liquidity in foreign and underdeveloped
markets.
 
  On July 1, 1998, the Structured Emerging Markets and Tax-Efficient
Structured Emerging Markets Funds commenced investment operations immediately
following a transaction (the "Transaction") in which each Fund issued
Institutional Class shares to unit holders of the Parametric Portfolio
Associates Emerging Markets Trust, a separate account managed by Parametric
(the "EM Trust"), in exchange for the EM Trust's assets. The EM Trust's unit
holders were divided into two categories: participants who pay taxes ("Taxable
Participants") and participants that are non-taxable entities ("Non-Taxable
Participants"; together with the Taxable Participants, the "Participants").
Assets in the EM Trust equal in value to the value of the Taxable
Participants' participation in the EM Trust were transferred to the Tax-
Efficient Structured Emerging Markets Fund in exchange for Institutional Class
shares of that Fund. Assets in the EM Trust equal in value to the value of the
Non-Taxable Participants' participation in the EM Trust were transferred to
the Structured Emerging Markets Fund in exchange for Institutional Class
shares of that Fund. The Participants' interests in the EM Trust were then
terminated and Institutional Class shares of the Tax-Efficient Structured
Emerging Markets Fund were distributed to the Taxable Participants and
Institutional Class shares of the Structured Emerging Markets Fund were
distributed to the Non-Taxable Participants, in each case in proportion to
each Participant's interest in the EM Trust. After the completion of the
Transaction, the portfolio securities which were owned by the EM Trust became
portfolio securities of the Funds (allocated to the Funds on a substantially
pro-rata basis), to be held or sold as Parametric deems appropriate.
 
  Portfolio securities transferred to the Funds pursuant to the Transaction
will have the same tax basis as they had when held by the EM Trust. Such
securities have "built-in" capital gains if their market value at the time of
the Transaction was greater than their tax basis (other securities may have
"built-in" capital losses for tax purposes if their market value at the time
of the Transaction was less than their tax basis). Built-in capital gains
realized upon the disposition of these securities will be distributed to all
Fund shareholders who are shareholders of record on the record date for the
distribution, even if such shareholders were not Participants in the EM Trust
prior to the Transaction. This means that investors purchasing Fund shares
after the date of this Prospectus may be required to pay taxes on
distributions that economically represent a return of a portion of the amount
invested. For further information, see "Dividends, Distributions and Taxes"
below and "Taxation--Distributions" in the Statement of Additional
Information.
 
 
58   PIMCO Funds: Multi-Manager Series
<PAGE>
 
  In connection with the Transaction, the Participants in the EM Trust will
not be subject to Fund Reimbursement Fees with respect to any shares of these
Funds they acquired through June 30, 1998, and will not be subject to Fund
Reimbursement Fees upon the subsequent redemption (including any redemption in
connection with an exchange) of any shares acquired by any such Participant
through June 30, 1998. Such Participants will be subject to such Fund
Reimbursement Fees to the same extent as any other shareholder on any shares
of either Fund acquired (whether by reinvestment of dividends or capital gain
distributions or otherwise) after June 30, 1998.
 
Other Purchase Information
 
  Purchases of a Fund's Institutional Class and Administrative Class shares
will be made in full and fractional shares. In the interest of economy and
convenience, certificates for shares will not be issued.
 
  The Trust and the Distributor each reserves the right, in its sole
discretion, to suspend the offering of shares of the Funds or to reject any
purchase order, in whole or in part, when, in the judgment of management, such
suspension or rejection is in the best interests of the Trust. The Trust and
the Distributor may also waive the minimum initial investment for certain
investors.
 
  Purchases and sales should be made for long-term investment purposes only.
The Trust and Adviser each reserves the right to restrict purchases of Fund
shares (including exchanges) when a pattern of frequent purchases and sales
made in response to short-term fluctuations in share price appears evident.
 
  Institutional Class and Administrative Class shares of the Trust are not
qualified or registered for sale in all states. Prospective investors should
inquire as to whether shares of a particular Fund are available for offer and
sale in their state of residence. Shares of the Trust may not be offered or
sold in any state unless registered or qualified in that jurisdiction or
unless an exemption from registration or qualification is available.
 
  Investors may, subject to the approval of the Trust, purchase shares of a
Fund with liquid securities that are eligible for purchase by the Fund
(consistent with such Fund's investment policies and restrictions) and that
have a value that is readily ascertainable in accordance with the Trust's
valuation policies. These transactions will be effected only if the Portfolio
Manager intends to retain the security in the Fund as an investment. Assets so
purchased by a Fund will be valued in generally the same manner as they would
be valued for purposes of pricing the Fund's shares, if such assets were
included in the Fund's assets at the time of purchase. The Trust reserves the
right to amend or terminate this practice at any time.
 
Investment Limitations
   
  Shares of the Micro-Cap Growth and Small-Cap Growth Funds are normally not
available for purchase by new investors, although purchase orders may be
accepted in certain circumstances. Existing shareholders may continue to
invest in these Funds. These restrictions may be changed or eliminated at any
time at the discretion of the Trust's Board of Trustees. [Also, it is
anticipated that the Emerging Markets and International Developed Funds will
reorganize as series of another mutual fund family on or about March 31, 1999
and thereafter would not be available for purchase from the Trust. See
"Management of the Trust--Portfolio Managers--Blairlogie."]     
 
Retirement Plans
 
  Shares of the Funds are available for purchase by retirement and savings
plans, including Keogh plans, 401(k) plans, 403(b) custodial accounts, and
Individual Retirement Accounts. The administrator of a plan or employee
benefits office can provide participants or employees with detailed
information on how to participate in the plan and how to elect a


                                                  April  , 1999 Prospectus   59
<PAGE>
 
Fund as an investment option. Participants in a retirement or savings plan may
be permitted to elect different investment options, alter the amounts
contributed to the plan, or change how contributions are allocated among
investment options in accordance with the plan's specific provisions. The plan
administrator or employee benefits office should be consulted for details. For
questions about participant accounts, participants should contact their
employee benefits office, the plan administrator, or the organization that
provides recordkeeping services for the plan. Investors who purchase shares
through retirement plans should be aware that plan administrators may
aggregate purchase and redemption orders for participants in the plan.
Therefore, there may be a delay between the time the investor places an order
with the plan administrator and the time the order is forwarded to the
Transfer Agent for execution.
 
                             REDEMPTION OF SHARES
 
Redemptions by Mail
 
  Institutional Class and Administrative Class shares may be redeemed by
submitting a written request to PIMCO Funds, 840 Newport Center Drive, Suite
300, Newport Beach, California 92660, stating the Fund from which the shares
are to be redeemed, the class of shares, the number or dollar amount of the
shares to be redeemed and the account number. The request must be signed
exactly as the names of the registered owners appear on the Trust's account
records, and the request must be signed by the minimum number of persons
designated on the Client Registration Application that are required to effect
a redemption.
 
Redemptions by Telephone or Other Wire Communication
 
  If an election is made on the Client Registration Application (or
subsequently in writing), redemptions of shares may be requested by calling
the Trust at 1-800-927-4648, by sending a facsimile to 1-949-760-4456, or by
other means of wire communication. Investors should state the Fund and class
from which the shares are to be redeemed, the number or dollar amount of the
shares to be redeemed and the account number. Redemption requests of an amount
of $10 million or more may be initiated by telephone, but must be confirmed in
writing by an authorized party prior to processing.
 
  In electing a telephone redemption, the investor authorizes Pacific
Investment Management and the Transfer Agent to act on telephone instructions
from any person representing himself to be the investor, and reasonably
believed by Pacific Investment Management and the Transfer Agent to be
genuine. Neither the Trust nor its Transfer Agent may be liable for any loss,
cost or expense for acting on instructions (whether in writing or by
telephone) believed by the party receiving such instructions to be genuine and
in accordance with the procedures described in this Prospectus. Shareholders
should realize that by electing the telephone or wire redemption option, they
may be giving up a measure of security that they might have if they were to
redeem their shares in writing. Furthermore, interruptions in telephone
service may mean that a shareholder will be unable to effect a redemption by
telephone when desired. The Transfer Agent also provides written confirmation
of transactions initiated by telephone as a procedure designed to confirm that
telephone instructions are genuine (written confirmation is also provided for
redemption requests received in writing). All telephone transactions are
recorded, and Pacific Investment Management or the Transfer Agent may request
certain information in order to verify that the person giving instructions is
authorized to do so. If the Trust or Transfer Agent fails to employ reasonable
procedures to confirm that instructions communicated by telephone are genuine,
it may be liable for any losses due to unauthorized or fraudulent telephone
transactions. All redemptions, whether initiated by letter or telephone, will
be processed in a timely manner, and proceeds will be forwarded by wire in
accordance with the redemption policies of the Trust detailed below. See
"Redemption of Shares--Other Redemption Information."
 
 
60   PIMCO Funds: Multi-Manager Series
<PAGE>
 
  Shareholders may decline telephone exchange or redemption privileges after
an account is opened by instructing the Transfer Agent in writing at least
seven business days prior to the date the instruction is to be effective.
Shareholders may experience delays in exercising telephone redemption
privileges during periods of abnormal market activity. During periods of
volatile economic or market conditions, shareholders may wish to consider
transmitting redemption orders by telegram, facsimile or overnight courier.
 
  Defined contribution plan participants may request redemptions by contacting
the employee benefits office, the plan administrator or the organization that
provides recordkeeping services for the plan.
 
Other Redemption Information
 
  Redemption requests for Fund shares are effected at the net asset value per
share next determined after receipt in good order of the redemption request by
the Trust or its designee. A redemption request received by the Trust or its
designee prior to the close of regular trading on the Exchange (normally 4:00
p.m., Eastern time), on a day the Trust is open for business, is effective on
that day. A redemption request received after that time becomes effective on
the next business day.
 
  Unless eligible for a waiver, shareholders of the Structured Emerging
Markets and Tax-Efficient Structured Emerging Markets Funds who redeem their
shares will pay a Fund Reimbursement Fee equal to 1.00% of the net asset value
of the shares redeemed. See "Purchase of Shares--Fund Reimbursement Fees."
 
  Payment of the redemption price will ordinarily be wired to the investor's
bank within three business days after the redemption request, but may take up
to seven business days. Redemption proceeds will be sent by wire only to the
bank name designated on the Client Registration Application. The Trust may
suspend the right of redemption or postpone the payment date at times when the
Exchange is closed, or during certain other periods as permitted under the
federal securities laws.
 
  For shareholder protection, a request to change information contained in an
account registration (for example, a request to change the bank designated to
receive wire redemption proceeds) must be received in writing, signed by the
minimum number of persons designated on the Client Registration Application
that are required to effect a redemption, and accompanied by a signature
guarantee from any eligible guarantor institution, as determined in accordance
with the Trust's procedures. Shareholders should inquire as to whether a
particular institution is an eligible guarantor institution. A signature
guarantee cannot be provided by a notary public. In addition, corporations,
trusts, and other institutional organizations are required to furnish evidence
of the authority of the persons designated on the Client Registration
Application to effect transactions for the organization.
 
  Due to the relatively high cost of maintaining small accounts, the Trust
reserves the right to redeem Institutional Class and Administrative Class
shares in any account for their then-current value (which will be promptly
paid to the investor) if at any time, due to redemption by the investor, the
shares in the account do not have a value of at least $100,000. A shareholder
will receive advance notice of a mandatory redemption and will be given at
least 30 days to bring the value of its account up to at least $100,000. This
mandatory redemption policy does not apply to participants in PIMCO Advisors
Portfolio Strategies, a managed product sponsored by PIMCO Advisors.
 
  The Trust agrees to redeem shares of each Fund solely in cash up to the
lesser of $250,000 or 1% of the Fund's net assets during any 90-day period for
any one shareholder. In consideration of the best interests of the remaining
shareholders, the Trust reserves the right to pay any redemption proceeds
exceeding this amount in whole or in part by a distribution in kind of
securities held by a Fund in lieu of cash. Except for Funds with a tax-
efficient management strategy,

                                                  April  , 1999 Prospectus   61
<PAGE>
 
it is highly unlikely that shares would ever be redeemed in kind. When shares
are redeemed in kind, the redeeming shareholder should expect to incur
transaction costs upon the disposition of the securities received in the
distribution.
 
Exchange Privilege
 
  Shares of a Fund may be exchanged for shares of the same class of any other
Fund or other series of the Trust based on the respective net asset values of
the shares involved. An exchange may be made by following the redemption
procedure described above under "Redemptions by Mail" or, if the telephone
redemption option has been elected, by calling the Trust at 1-800-927-4648.
Shares of a Fund may also be exchanged for shares of the same class of a
series of PIMCO Funds: Pacific Investment Management Series, an affiliated
mutual fund family composed primarily of fixed income portfolios managed by
Pacific Investment Management. Shareholders interested in such an exchange may
request a prospectus for these other series by contacting PIMCO Funds: Pacific
Investment Management Series at the same address and telephone number as the
Trust.
 
  Unless eligible for a waiver, shareholders who exchange their Institutional
Class or Administrative Class shares of any PIMCO Fund for the same class of
shares of the Structured Emerging Markets Fund or Tax-Efficient Structured
Emerging Markets Fund will be subject to a Fund Reimbursement Fee of 1.00% of
the net asset value of the shares of these Funds acquired in connection with
the exchange. Also, shareholders who exchange their shares of the Structured
Emerging Markets Fund or Tax-Efficient Structured Emerging Markets Fund for
shares of any other PIMCO Fund will be subject to a Fund Reimbursement Fee of
1.00% of the net asset value of the shares of these Funds redeemed in
connection with the exchange. See "Purchase of Shares--Fund Reimbursement
Fees."
 
  Exchanges may be made only with respect to Funds or other eligible series
that are registered in the state of residence of the investor or where an
exemption from registration is available. An exchange order is treated the
same for tax purposes as a redemption followed by a purchase and may result in
a capital gain or loss, and special rules may apply in computing tax basis
when determining gain or loss. See "Taxation" in the Statement of Additional
Information.
   
  [It is anticipated that the Emerging Markets and International Developed
Funds will reorganize as series of another mutual fund family on or about
March 31, 1999 and thereafter would not be eligible for exchanges involving
other PIMCO Funds. See "Management of the Trust--Portfolio Managers--
Blairlogie."]     
 
  The Trust reserves the right to refuse exchange purchases if, in the
judgment of the Adviser, the purchase would adversely affect a Fund and its
shareholders. In particular, a pattern of exchanges characteristic of "market-
timing" strategies may be deemed by the Adviser to be detrimental to the Trust
or a particular Fund. Currently, the Trust limits the number of "round trip"
exchanges an investor may make. An investor makes a "round trip" exchange when
the investor purchases shares of a particular Fund, subsequently exchanges
those shares for shares of a different Fund, and then exchanges back into the
originally purchased Fund. The Trust has the right to refuse any exchange for
any investor who completes (by making the exchange back into the shares of the
originally purchased Fund) more than six round trip exchanges in any twelve-
month period. Although the Trust will attempt to give shareholders prior
notice whenever it is reasonably able to do so, it may impose additional
restrictions on exchanges at any time.
 
                            PORTFOLIO TRANSACTIONS
   
  The Adviser or, pursuant to the portfolio management agreements, a Portfolio
Manager, places orders for the purchase and sale of portfolio investments for
a Fund's accounts with brokers or dealers selected by it in its discretion. In
effecting purchases and sales of portfolio securities for the accounts of the
Funds, the Adviser and the Portfolio Managers     

 
62   PIMCO Funds: Multi-Manager Series
<PAGE>
 
   
will seek the best price and execution of the Funds' orders. In doing so, a
Fund may pay higher commission rates than the lowest available when the
Adviser or Portfolio Manager believes it is reasonable to do so in light of
the value of the brokerage and research services provided by the broker
effecting the transaction. The Adviser and Portfolio Managers also may
consider sales of shares of the Trust as a factor in the selection of broker-
dealers to execute portfolio transactions for the Trust.     
   
  Some securities considered for investment by the Funds may also be
appropriate for other clients served by the Adviser or a Portfolio Manager. If
a purchase or sale of securities consistent with the investment policies of a
Fund and one or more of these clients is considered at or about the same time,
transactions in such securities will be allocated among the Fund and clients
in a manner deemed fair and reasonable by the Adviser or Portfolio Manager.
Particularly when investing in less liquid or illiquid securities of smaller
capitalization companies, such allocation may take into account the asset size
of a Fund in determining whether the allocation of an investment is suitable.
As a result, larger Funds may become more concentrated in more liquid
securities than smaller Funds or private accounts of the Adviser or a
Portfolio Manager pursuing a small capitalization investment strategy, which
could adversely affect performance. The Adviser or a Portfolio Manager may
aggregate orders for the Funds with simultaneous transactions entered into on
behalf of its other clients so long as price and transaction expenses are
averaged either for the portfolio transaction or for that day.     
   
  A change in the securities held by a Fund is known as "portfolio turnover."
With the exception of the Tax-Efficient Structured Emerging Markets and Tax-
Efficient Equity Funds (which may attempt to minimize portfolio turnover as a
tax-efficient management strategy), the Portfolio Managers manage the Funds
without regard generally to restrictions on portfolio turnover, except those
imposed on their ability to engage in short-term trading by provisions of the
federal tax laws. The use of futures contracts and other derivative
instruments with relatively short maturities may tend to exaggerate the
portfolio turnover rate for some of the Funds. The use of futures contracts
may involve the payment of commissions to futures commission merchants. High
portfolio turnover (e.g., over 100%) involves correspondingly greater expenses
to a Fund, including brokerage commissions or dealer mark-ups and other
transaction costs on the sale of securities and reinvestments in other
securities. Such sales may result in realization of taxable capital gains
(including short-term capital gains which are generally taxed at ordinary
income tax rates). See "Dividends, Distributions and Taxes." Portfolio
turnover rates for each Fund for which financial highlights for at least the
past two fiscal years are provided in this Prospectus are set forth under
"Financial Highlights." Portfolio turnover rates for the remaining Funds which
have not recently commenced operations were as follows for the fiscal years
ended June 30, 1998 and 1997, respectively: Growth--123% and 94%; Target--226%
and 145%; Opportunity--86% and 69%; Innovation--100% and 80%; International--
60% and 59%; and Renaissance--192% and 131%. The annual portfolio turnover
rate for each of the Tax-Efficient Structured Emerging Markets and Tax-
Efficient Equity Funds is expected to be less than 40%. The annual portfolio
turnover rate for the Structured Emerging Markets and International Growth
Funds is expected to be less than 100% and for the Value 25 Fund is expected
to be less than 150%.     
       
                                NET ASSET VALUE
 
  The net asset values of Institutional and Administrative Class shares of
each Fund will be determined once on each day on which the Exchange is open (a
"Business Day"), as of the close of regular trading (normally 4:00 p.m.,
Eastern time) on the Exchange. Net asset value will not be determined on days
on which the Exchange is closed.
 
  Portfolio securities and other assets for which market quotations are
readily available are stated at market value. Fixed income securities are
normally valued on the basis of quotations obtained from brokers and dealers
or pricing services, which take into account appropriate factors such as
institutional-sized trading in similar groups of securities, yield, quality,
coupon rate, maturity, type of issue, trading characteristics, and other
market data. Certain fixed income

                                                   April  , 1999 Prospectus   63
<PAGE>
 
securities for which daily market quotations are not readily available may be
valued, pursuant to guidelines established by the Board of Trustees, with
reference to fixed income securities whose prices are more readily obtainable
and whose durations are comparable to the securities being valued. Short-term
investments having a maturity of 60 days or less are valued at amortized cost,
when the Board of Trustees determines that amortized cost is their fair value.
Exchange-traded options, futures and options on futures are valued at the
settlement price as determined by the appropriate clearing corporation. All
other securities and assets are valued at their fair value as determined in
good faith by the Trustees or by persons acting at their direction.
 
  Quotations of foreign securities in foreign currency are converted to U.S.
dollar equivalents using foreign exchange quotations received from independent
dealers. The calculation of the net asset value of the Emerging Markets,
International Developed, International, International Growth, Structured
Emerging Markets, and Tax-Efficient Structured Emerging Markets Funds may not
take place contemporaneously with the determination of the prices of certain
portfolio securities of foreign issuers used in such calculation. Further,
under the Trust's procedures, the prices of foreign securities are determined
using information derived from pricing services and other sources. Information
that becomes known to the Trust or its agents after the time that net asset
value is calculated on any Business Day may be assessed in determining net
asset value per share after the time of receipt of the information, but will
not be used to retroactively adjust the price of the security so determined
earlier or on a prior day. Events affecting the values of portfolio securities
that occur between the time their prices are determined and the close of
regular trading on the Exchange (normally 4:00 p.m., Eastern time) may not be
reflected in the calculation of net asset value. If events materially
affecting the value of such securities occur during such period, then these
securities may be valued at fair value as determined by the Adviser or a
Portfolio Manager and approved in good faith by the Board of Trustees.
 
  Each Fund's liabilities are allocated among its classes. The total of such
liabilities allocated to a class plus that class's distribution and/or
servicing fees and any other expenses specially allocated to that class are
then deducted from the class's proportionate interest in the Fund's assets,
and the resulting amount for each class is divided by the number of shares of
that class outstanding to produce the class's "net asset value" per share.
Under certain circumstances, the per share net asset value of the
Administrative Class shares of the Funds may be lower than the per share net
asset value of the Institutional Class shares as a result of the daily expense
accruals of the service and/or distribution fees applicable to the
Administrative Class shares. Generally, for Funds that pay income dividends,
those dividends are expected to differ over time by approximately the amount
of the expense accrual differential between a particular Fund's classes.
 
                      DIVIDENDS, DISTRIBUTIONS AND TAXES
 
  Shares begin earning dividends on the effective date of purchase, provided
notification deadlines are met. See "Purchase of Shares." Net investment
income from interest and dividends, if any, will be declared and paid
quarterly to shareholders of record by the Renaissance, Equity Income, Value,
and Balanced Funds. Net investment income from interest and dividends, if any,
will be declared and paid at least annually to shareholders of record by the
other Funds. Any net capital gains from the sale of portfolio securities will
be distributed no less frequently than once annually. Net short-term capital
gains may be paid more frequently. Dividend and capital gain distributions of
a Fund will be reinvested in additional shares of that Fund unless the
shareholder elects to have them paid in cash. Dividends from net investment
income with respect to Administrative Class shares will be lower than those
paid with respect to Institutional Class shares, reflecting the payment of
service and/or distribution fees by that class.
 
  Each Fund intends to qualify as a regulated investment company annually and
to elect to be treated as a regulated investment company under the Internal
Revenue Code of 1986, as amended (the "Code"). As such, a Fund generally

 
64   PIMCO Funds: Multi-Manager Series
<PAGE>
 
will not pay federal income tax on the income and gains it pays as dividends
to its shareholders. In order to avoid a 4% federal excise tax, each Fund
intends to distribute each year substantially all of its net income and gains.
 
  Shareholders subject to U.S. federal income tax will be subject to tax on
dividends received from a Fund, regardless of whether received in cash or
reinvested in additional shares. Distributions received by tax-exempt
shareholders generally will not be subject to federal income tax to the extent
permitted under applicable tax law. All shareholders must treat dividends,
other than capital gain dividends, exempt-interest dividends, and dividends
that represent a return of capital to shareholders, as ordinary income. In
particular, distributions derived from short-term gains will be treated as
ordinary income. Dividends derived from interest on certain U.S. Government
securities may be exempt from state and local taxes, although interest on
mortgage-backed U.S. Government securities is generally not so exempt. While
the Tax-Efficient Structured Emerging Markets and Tax-Efficient Equity Funds
seek to minimize taxable distributions, the Funds may be expected to earn and
distribute taxable income and may also be expected to realize and distribute
capital gains from time to time.
 
  Dividends designated by a Fund as capital gain dividends derived from the
Fund's net capital gains (that is, the excess of its net long-term capital
gains over its net short-term capital losses) are taxable to shareholders as
long-term capital gain (generally subject to a 20% tax rate) except as
provided by an applicable tax exemption. Any distributions that are not from a
Fund's net investment income or net capital gain may be characterized as a
return of capital to shareholders or, in some cases, as capital gain. Certain
dividends declared in October, November or December of a calendar year are
taxable to shareholders (who otherwise are subject to tax on dividends) as
though received on December 31 of that year if paid to shareholders during
January of the following calendar year. Each Fund will advise shareholders
annually of the amount and nature of the dividends paid to them.
 
  Current federal tax law requires the holder of a U.S. Treasury or other
fixed income zero coupon security to accrue as income each year a portion of
the discount at which the security was purchased, even though the holder
receives no interest payment in cash on the security during the year. In
addition, pay-in-kind securities will give rise to income which is required to
be distributed and is taxable even though the Fund holding the security
receives no interest payment in cash on the security during the year. Also, a
portion of the yield on certain high yield securities (including certain pay-
in-kind securities) issued after July 10, 1989 may be treated as dividends.
Accordingly, each Fund that holds the foregoing kinds of securities may be
required to pay out as an income distribution each year an amount which is
greater than the total amount of cash interest the Fund actually received.
Such distributions may be made from the cash assets of the Fund or by
liquidation of portfolio securities, if necessary. The Fund may realize gains
or losses from such liquidations. In the event the Fund realizes net capital
gains from such transactions, its shareholders may receive a larger capital
gain distribution, if any, than they would in the absence of such
transactions.
 
  Taxable shareholders should note that the timing of their investment or
redemptions could have undesirable tax consequences. Dividends and
distributions on a Fund's shares are generally subject to federal income tax
as described herein to the extent they do not exceed the Fund's realized
income and gains, even though such dividends and distributions may
economically represent a return of a particular shareholder's investment. Such
distributions are likely to occur in respect of shares purchased at a time
when the Fund's net asset value reflects gains that are either unrealized or
realized but not distributed. Such realized gains may be required to be
distributed even when a Fund's net asset value also reflects unrealized
losses.
 
  The preceding discussion relates only to federal income tax; the
consequences under other tax laws may differ. Shareholders should consult
their tax advisers as to the possible application of foreign, state and local
income tax laws to

                                                  April  , 1999 Prospectus   65
<PAGE>
 
Trust dividends and capital gain distributions. For additional information
relating to the tax aspects of investing in a Fund, see the Statement of
Additional Information.
 
                               OTHER INFORMATION
 
Capitalization
   
  The Trust was organized as a Massachusetts business trust on August 24,
1990, and currently consists of twenty-eight portfolios that are operational,
twenty-four of which are described in this Prospectus. Other portfolios may be
offered by means of a separate prospectus. The Board of Trustees may establish
additional portfolios in the future. The capitalization of the Trust consists
of an unlimited number of shares of beneficial interest. When issued, shares
of the Trust are fully paid, non-assessable and freely transferable.     
 
  Under Massachusetts law, shareholders could, under certain circumstances, be
held liable for the obligations of the Trust. However, the Second Amended and
Restated Agreement and Declaration of Trust (the "Declaration of Trust") of
the Trust disclaims shareholder liability for acts or obligations of the Trust
and requires that notice of such disclaimer be given in each agreement,
obligation or instrument entered into or executed by the Trust or the
Trustees. The Declaration of Trust also provides for indemnification out of a
Fund's property for all loss and expense of any shareholder of that Fund held
liable on account of being or having been a shareholder. Thus, the risk of a
shareholder incurring financial loss on account of shareholder liability is
limited to circumstances in which such disclaimer is inoperative or the Fund
of which he or she is or was a shareholder is unable to meet its obligations,
and thus should be considered remote.
 
Multiple Classes of Shares
 
  In addition to Institutional Class shares and Administrative Class shares,
certain Funds also offer up to four additional classes of shares, Class A,
Class B, Class C and Class D, through separate prospectuses. This Prospectus
relates only to Institutional Class and Administrative Class shares of the
Funds. The other classes of the Funds have different sales charges and expense
levels, which will affect performance accordingly. To obtain more information
about the other classes of shares, please call the Distributor at 1-800-426-
0107 (for Class A, Class B, and Class C) or 1-888-87-PIMCO (for Class D).
 
  Institutional Class and Administrative Class shares of each Fund represent
interests in the assets of that Fund, and each class has identical dividend,
liquidation and other rights and the same terms and conditions, except that
expenses related to the distribution and/or shareholder servicing of
Administrative Class shares are borne solely by such class, and each class
may, at the Trustees' discretion, also pay a different share of other
expenses, not including advisory or custodial fees or other expenses related
to the management of the Trust's assets, if these expenses are actually
incurred in a different amount by that class, or if the class receives
services of a different kind or to a different degree than the other classes.
All other expenses are allocated to each class on the basis of the net asset
value of that class in relation to the net asset value of the particular Fund.
 
Voting
 
  Each class of shares of each Fund has identical voting rights, except that
each class of shares has exclusive voting rights on any matter submitted to
shareholders that relates solely to that class, and has separate voting rights
on any matter submitted to shareholders in which the interests of one class
differ from the interests of any other class. The Administrative Class shares
have exclusive voting rights with respect to matters pertaining to any
Distribution Plan

 
66   PIMCO Funds: Multi-Manager Series
<PAGE>
 
applicable to that class. These shares are entitled to vote at meetings of
shareholders. Matters submitted to shareholder vote must be approved by each
Fund separately except (i) when required by the 1940 Act, shares shall be
voted together, and (ii) when the Trustees have determined that the matter
does not affect all Funds, then only shareholders of the Fund or Funds
affected shall be entitled to vote on the matter. All classes of shares of a
Fund will vote together, except with respect to a Distribution Plan or
agreement applicable to a class of shares or when a class vote is required as
specified above or otherwise by the 1940 Act. Shares are freely transferable,
are entitled to dividends as declared by the Trustees and, in liquidation of
the Trust, are entitled to receive the net assets of their Fund, but not of
the other Funds. The Trust does not generally hold annual meetings of
shareholders and will do so only when required by law. Shareholders may remove
Trustees from office by votes cast in person or by proxy at a meeting of
shareholders or by written consent. Such a meeting will be called at the
written request of the holders of 10% of the Trust's outstanding shares.
   
  Shares entitle their holders to one vote per share (with proportionate
voting for fractional shares). As of March  , 1999, the following were
shareholders of record of at least 25% of the outstanding voting securities of
the indicated Funds: [Note: To be updated in a Post-Effective amendment filed
prior to the effective date of this Amendment.] The Bank of New York as
Trustee for Melville Corporation (New York, New York) with respect to the Core
Equity Fund; Pacific Mutual Life Insurance Company Employee's Retirement Plan
Trust (Newport Beach, California) with respect to the Enhanced Equity Fund;
Pacific Mutual Life Insurance Company (Newport Beach, California) with respect
to the Mid-Cap Equity Fund; Pacific Asset Management LLC (Newport Beach,
California) with respect to the International Growth Fund; and PIMCO Advisors
L.P. (Newport Beach, California), the Trust's investment adviser and
administrator, with respect to the Value 25 and Tax-Efficient Equity Funds. To
the extent such shareholders are also the beneficial owners of such
securities, they may be deemed to control (as that term is defined in the 1940
Act) the relevant Fund. As used in this Prospectus, the phrase "vote of a
majority of the outstanding shares" of a Fund (or the Trust) means the vote of
the lesser of: (1) 67% of the shares of the Fund (or the Trust) present at a
meeting, if the holders of more than 50% of the outstanding shares are present
in person or by proxy; or (2) more than 50% of the outstanding shares of the
Fund (or the Trust).     
 
Performance Information
 
  From time to time the Trust may make available certain information about the
performance of the Institutional Class and Administrative Class shares of some
or all of the Funds. Information about a Fund's performance is based on that
Fund's (or its predecessor's) record to a recent date and is not intended to
indicate future performance. Performance information is computed separately
for each Fund's Institutional Class and Administrative Class shares in
accordance with the formulas described below. Because Administrative Class
shares bear the expense of service and/or distribution fees, it is expected
that, under normal circumstances, the level of performance of a Fund's
Administrative Class shares will be lower than that of the Fund's
Institutional Class shares.
 
  The total return of Institutional Class and Administrative Class shares of
all Funds may be included in advertisements or other written material. When a
Fund's total return is advertised with respect to its Institutional Class and
Administrative Class shares, it will be calculated for the past year, the past
five years, and the past ten years (or if the Fund has been offered for a
period shorter than one, five or ten years, that period will be substituted)
since the establishment of the Fund or its predecessor series of PIMCO
Advisors Funds, as more fully described in the Statement of Additional
Information. For periods prior to the initial offering date of Institutional
Class or Administrative Class shares, total return presentations for a class
will be based on the historical performance of an older class of the Fund (if
any) restated, as necessary, to reflect that there are no sales charges
associated with Institutional Class or Administrative Class shares. The older
class to be used in each case is set forth in the Statement of Additional
Information. For these

                                                  April  , 1999 Prospectus   67
<PAGE>
 
purposes, the performance of the older class will also be restated to reflect
any different operating expenses (such as different administrative fees and/or
12b-1/servicing fee charges) associated with the newer class. In certain
cases, such a restatement will result in Institutional Class or Administrative
Class performance which is higher than if the performance of the older class
were not restated to reflect the different operating expenses of the newer
class. In such cases, the Trust's advertisements will also, to the extent
appropriate, show the lower performance figure reflecting the actual operating
expenses incurred by the older class for periods prior to the initial offering
date of the newer class. Total return for each class is measured by comparing
the value of an investment in the Fund at the beginning of the relevant period
to the redemption value of the investment in the Fund at the end of the period
(assuming immediate reinvestment of any dividends or capital gains
distributions at net asset value). Total return may be advertised using
alternative methods that reflect all elements of return, but that may be
adjusted to reflect the cumulative impact of alternative fee and expense
structures.
 
  Quotations of yield for a Fund or class will be based on the investment
income per share (as defined by the SEC) during a particular 30-day (or one-
month) period (including dividends and interest), less expenses accrued during
the period ("net investment income"), and will be computed by dividing net
investment income by the maximum public offering price per share on the last
day of the period.
 
  The Funds may also provide current distribution information to their
shareholders in shareholder reports or other shareholder communications, or in
certain types of sales literature provided to prospective investors. Current
distribution information for a particular class of a Fund will be based on
distributions for a specified period (i.e., total dividends from net
investment income), divided by the relevant class net asset value per share on
the last day of the period and annualized. The rate of current distributions
does not reflect deductions for unrealized losses from transactions in
derivative instruments such as options and futures, which may reduce total
return. Current distribution rates differ from standardized yield rates in
that they represent what a class of a Fund has declared and paid to
shareholders as of the end of a specified period rather than the Fund's actual
net investment income for that period.
 
  The Adviser and each Portfolio Manager may also report to shareholders or to
the public in advertisements concerning its performance as adviser to clients
other than the Funds, and on its comparative performance or standing in
relation to other money managers. Such comparative information may be compiled
or provided by independent ratings services or by news organizations. Any
performance information, whether related to the Funds, the Adviser or the
Portfolio Managers, should be considered in light of the Fund's investment
objectives and policies, characteristics and quality of the Funds, and the
market conditions during the time period indicated, and should not be
considered to be representative of what may be achieved in the future.
 
  Investment results of the Funds will fluctuate over time, and any
representation of the Funds' total return or yield for any prior period should
not be considered as a representation of what an investor's total return or
yield may be in any future period. The Trust's Annual and Semi-Annual Reports
contain additional performance information for the Funds and are available
upon request, without charge, by calling 1-800-927-4648 (Current
Shareholders), or 1-800-800-0952 (New Accounts).

 
68   PIMCO Funds: Multi-Manager Series
<PAGE>
 
 
                ----------------------------------------------------------------
PIMCO Funds:    INVESTMENT ADVISER AND ADMINISTRATOR
Multi-Manager   PIMCO Advisors L.P., 800 Newport Center Drive, Newport Beach, 
Series          CA 92660
                ----------------------------------------------------------------
                CUSTODIAN AND TRANSFER AGENT
                Investors Fiduciary Trust Company, 801 Pennsylvania, 
                Kansas City, MO 64105
                ----------------------------------------------------------------
                INDEPENDENT ACCOUNTANTS
                PricewaterhouseCoopers LLP, 1055 Broadway, Kansas City, MO 64105
                ----------------------------------------------------------------
                LEGAL COUNSEL
                Ropes & Gray, One International Place, Boston, MA 02110
                ----------------------------------------------------------------
<PAGE>
 
<TABLE> 
<S>                                      <C>                                     <C> 
 
For More Information                     To request a free copy of these doc-    Information about the Trust 
                                         uments or to make inquiries about       (including the SAI) can be 
The following documents are              the Funds, please write or call:        reviewed and copied at the 
available that offer further infor-                                              Securities and Exchange         
mation on the Funds of PIMCO             PIMCO Funds:                            Commission's Public Reference 
Funds: Multi-Manager Series.             Multi-Manager Series                    Room in Washington, D.C.                  
                                         840 Newport Center Drive                Information on the operation 
Annual/Semi-Annual Reports to            Suite 300                               of the public reference room 
Shareholders The Trust's annual          Newport Beach, CA 92660                 may be obtained by calling the          
and semi-annual reports include a                                                obtained by calling the          
discussion of the market condi-          Telephone:                              Commission at 1-800-SEC-0330.              
tions and investment strategies          1-800-927-4648                          Reports and other information     
that significantly affected the          1-800-987-4626 (PIMCO                   about the Trust are available    
Funds' performance during its last       Infolink Audio Response                 on the Commission's Internet     
fiscal year or other period.             Network)                                site at www.sec.gov, and         
                                                                                 copies of that information       
Statement of Additional Information                                              may be obtained, upon payment    
(SAI) The SAI contains additional                                                of a duplicating fee, by         
information about the Funds. A                                                   writing the Public Reference     
current SAI has been filed with                                                  Section of the Commission,   
the Securities and Exchange                                                      Washington, D.C. 20549-6009.    
Commission, and is incorporated                                                  
into this prospectus by reference.
</TABLE> 

SEC File Number: 811-06161

     PIMCO
- -----------------
            FUNDS

PIMCO FUNDS

840 Newport Center Drive
Suite 300
Newport Beach, CA 92660

<PAGE>
 
                       PIMCO FUNDS: MULTI-MANAGER SERIES
    
                       Supplement Dated _________, 1999
                                    to the
               Prospectus for Institutional Class and Administrative
                   Class Shares Dated April __, 1999     

                            Disclosure relating to:

                          PIMCO Precious Metals Fund

- --------------------------------------------------------------------------------
    
Note: This document supplements the PIMCO Funds: Multi-Manager Series (the
- ----
"Trust") Prospectus for Institutional Class and Administrative Class shares
dated April __, 1999 (the "Institutional Prospectus") which is included in
Part A of this Registration Statement.       
- --------------------------------------------------------------------------------
    
       The Trust intends to offer Institutional Class and Administrative Class
shares of PIMCO Precious Metals Fund (the "Fund").    

1.     Expense Information.

Shareholder Transaction Expenses - All Funds (Institutional and Administrative
- ----------------------------------
Class):

Sales Load Imposed on Purchases                                        None
Sales Load Imposed on Reinvested Dividends                             None
Redemption Fees                                                        None
Exchange Fee                                                           None
 
<TABLE>     
<CAPTION> 
Annual Fund Operating Expenses
- -------------------------------
                                                            Example: You would pay the
                                                            following expenses on a
Institutional Class        Annual Fund                      $1,000 investment assuming
Shares                     Operating Expenses               (1) 5% annual return and (2)
                           (As a percentage of              redemption at the end of each
                           average net assets):             time period:
- -----------------------------------------------------------------------------------------
                                      Admini-
                           Advisory  strative   Total
Fund                          Fee      Fee     Expenses     1         3       5      10
                                                          Year     Years    Years   Years
- -----------------------------------------------------------------------------------------
<S>                        <C>        <C>       <C>       <C>      <C>      <C>     <C> 
Precious Metals Fund          .60      .30       .90       $9       $29      $50    $111 
- -----------------------------------------------------------------------------------------
</TABLE>      
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                                          Example: You would pay the
                                                                          following expenses on a
Administrative Class              Annual Fund                             $1,000 investment assuming
Shares                            Operating Expenses                      (1) 5% annual return and (2)
                                  (As a percentage of                     redemption at the end of each
                                  average net assets):                    time period:
- ----------------------------------------------------------------------------------------------------------
                                             Admini-  Service/ 
                                  Advisory  strative   12b-1    Total       1         3       5      10     
Fund                                 Fee      Fee       Fee     Expenses  Year     Years    Years   Years 
- ----------------------------------------------------------------------------------------------------------
<S>                               <C>        <C>       <C>       <C>      <C>      <C>     <C> 
Precious Metals Fund                .60       .30      .25       1.15      $12      $37     $63      $140
- ----------------------------------------------------------------------------------------------------------
</TABLE>      
    
     The above tables are provided to assist investors in understanding the
various expenses which may be borne directly or indirectly in connection with an
investment in the Fund. The information has been restated as appropriate to
reflect the Fund's current fees and expenses. This Example should not be
considered a representation of past or future expenses or performance. Actual
expenses may be higher or lower than those shown.     

2.  Investment Objectives and Policies.
    
    The investment objective and general investment policies of the Fund is
described or incorporated below. There can be no assurance that the investment
objective of the Fund will be achieved. Because the market value of the Fund's
investments will change, the net asset value per share of the Fund also will
vary.     

                                      -2-
<PAGE>
     
    Precious Metals Fund
    --------------------     
    
    The investment objective and general investment policies of the Precious
Metals Fund and related risks of securities and investment techniques are
described in the corresponding sections of the Trust's Prospectus for Class A,
Class B and Class C shares, dated April __, 1999 (the " Retail Prospectus"),
which is included in Part A of this Registration Statement. The relevant
disclosure in the Retail Prospectus is incorporated herein by reference.     


                                      -3-
<PAGE>
 
3.  Management of the Trust.
    
    Disclosure relating to the Investment Adviser and Portfolio Manager of the
Fund (including advisory and portfolio management fees) and the Administrator
for the Fund is incorporated herein by reference to the corresponding
sub-sections of "Management of the Trust" in the Retail and Institutional
Prospectuses.     

Administrative Fees
- -------------------
    
    For providing or procuring administrative services for the Fund, PIMCO
Advisors L.P. (in its capacity as Administrator) receives monthly Administrative
Fees from the Fund at the following annual rates, each based on the average
daily net assets attributable in the aggregate to the Fund's Institutional Class
and Administrative Class shares: .30%.     

4.  Dividends, Distributions and Taxes.
    
    Disclosure relating to dividends, distributions and taxes with respect to
the Fund is incorporated herein by reference to "Distributions" and "Taxes" in
the Retail Prospectus.      

                                      -4-
<PAGE>
 
                                                         CLASS A, B AND C SHARES

                      PIMCO FUNDS ASSET ALLOCATION SERIES

                                  PROSPECTUS

               Actively managed portfolios of select PIMCO Funds

PIMCO Funds Asset Allocation Series consists of three actively managed mutual
funds that invest in a diversified portfolio of PIMCO Funds. In addition to
broad diversification, each Portfolio provides access to the extensive asset
allocation and investment management capabilities of PIMCO Advisors L.P. and its
affiliates.

<TABLE> 
<CAPTION> 
90/10 Portfolio                      60/40 Portfolio               30/70 Portfolio 
<S>                                  <C>                           <C> 
Seeks long-term capital              Seeks long-term capital       Seeks current income, with  
appreciation. The Portfolio          appreciation and current      long-term capital
normally invests approximately       income. The portfolio         appreciation as a secondary
90% of its assets                    normally invests              objective. The Portfolio
in PIMCO Stock Funds                 approximately 60% of its      normally invests
and 10% in PIMCO                     assets in PIMCO Stock         approximately 30% of its
Bond Funds.                          Funds and 40% in PIMCO        assets in PIMCO Stock
                                     Bond Funds.                   Funds and 70% in PIMCO
                                                                   Bond Funds.
</TABLE> 


                                                                           PIMCO
                                                                           -----
                                                                           FUNDS




                                                                  APRIL   , 1999
                                                                        --

<PAGE>
 
                 PIMCO Funds Asset Allocation Series
                 PIMCO Funds: Multi-Manager Series
                 Prospectus
               
                 April  , 1999     
  
                 PIMCO Funds Asset Allocation Series
 
90/10 Portfolio  PIMCO Funds: Multi-Manager Series (the "Trust") is an open-end 
60/40 Portfolio  series management investment company offering three diversified
30/70 Portfolio  investment portfolios (each a "Portfolio") in this Prospectus, 
                 each with different investment objectives and strategies. The  
                 Portfolios are professionally-managed series of the Trust      
                 designed to take advantage of the benefits of asset allocation.
                 Each Portfolio seeks to achieve its particular investment      
                 objective by investing within specified equity and fixed income
                 ranges among a number of other mutual funds in the PIMCO Funds 
                 family ("Underlying Funds" or "Funds"). The address of PIMCO   
                 Funds: Multi-Manager Series is 840 Newport Center Drive, Suite 
                 300, Newport Beach, CA 92660.                                  
                                                                                
                 PIMCO Advisors L.P. ("PIMCO Advisors" or the "Adviser") serves
                 as investment adviser to the Portfolios and determines how the
                 assets of each Portfolio are allocated among the Underlying
                 Funds. PIMCO Advisors and its affiliates also provide advisory
                 services to the Underlying Funds. See "Management of the
                 Portfolios."
 
                 Each Portfolio offers three classes of shares in this
                 Prospectus: Class A shares (generally sold subject to an
                 initial sales charge), Class B shares (sold subject to a
                 contingent deferred sales charge) and Class C shares (sold
                 subject to an asset based sales charge).
 
                 This Prospectus concisely describes the information investors
                 should know before investing in Class A, Class B and Class C
                 shares of the Portfolios. Please read this Prospectus carefully
                 and keep it for further reference.
 
                 Information about the investment objective of each Portfolio
                 and of the investment policies and restrictions applicable to
                 each Portfolio are set forth in this Prospectus. There can be
                 no assurance that the investment objective of any Portfolio
                 will be achieved. Because the market value of each Portfolio's
                 investments will change, the investment returns and net asset
                 value per share of each Portfolio will vary.
               
                 A Statement of Additional Information, dated April , 1999, as
                 amended or supplemented from time to time, is available free of
                 charge by writing to PIMCO Funds Distributors LLC (the
                 "Distributor"), 2187 Atlantic Street, Stamford, Connecticut
                 06902, or by telephoning 1-800-426-0107. In addition, a Trust
                 Prospectus dated April , 1999 and a Prospectus of PIMCO Funds:
                 Pacific Investment Management Series dated April , 1999, each
                 as amended or supplemented from time to time (together, the
                 "Underlying Fund Prospectuses"), relating to Institutional
                 Class shares of the Underlying Funds, are available free of
                 charge from the Distributor. The Statement of Additional
                 Information and the Underlying Fund Prospectuses, which contain
                 more detailed information about the Trust, the Portfolios
                 and/or the Underlying Funds, have each been filed with the
                 Securities and Exchange Commission and are incorporated by
                 reference in this Prospectus. The Securities and Exchange
                 Commission maintains an Internet World Wide Web site (at
                 www.sec.gov) which contains the Statement of Additional
                 Information and materials that are incorporated by reference
                 into this Prospectus and the Statement of Additional
                 Information, the Underlying Fund Prospectuses, and other
                 information about the Trust, the Portfolios and the Underlying
                 Funds.     
 
                 These securities have not been approved or disapproved by the
                 Securities and Exchange Commission or any state securities
                 commission, nor has the Securities and Exchange Commission or
                 any state securities commission passed upon the accuracy or
                 adequacy of this Prospectus. Any representation to the contrary
                 is a criminal offense.
 
                 Shares of the Portfolios are not deposits or obligations of, or
                  guaranteed or endorsed by, any financial institution, and the
                  shares are not federally insured by the Federal Deposit
                  Insurance Corporation, the Federal Reserve Board or any other
                  agency, and involve risk, including the possible loss of
                  principal.
 
                  TABLE OF CONTENTS
 
<TABLE>
                   <S>                                   <C> 
                   How to Redeem.........................30
                   Distributor and Distribution and
                   Servicing Plans.......................34
                   How Net Asset Value Is Determined.....36
                   Distributions.........................36
                   Taxes.................................37
                   Management of the Portfolios..........38
                   Description of the Trust..............43
                   Mailings to Shareholders..............44
                   Overview...............................3
                   Schedule of Fees.......................4
                   Investment Objectives and Policies.....6
                   Underlying Funds......................10
                   Performance Information...............16
                   How to Buy Shares.....................17
                   Alternative Purchase Arrangements.....21
                   Exchange Privilege....................29
</TABLE>
                                       2
<PAGE>
 
            Overview
 
            PIMCO Funds: Multi-Manager Series (the "Trust") is an open-end se-
            ries management investment company organized as a Massachusetts
            business trust on August 24, 1990. This Prospectus describes three
            separate diversified investment portfolios (the "Portfolios") of-
            fered by the Trust, PIMCO Funds Asset Allocation Series--90/10
            Portfolio (the "90/10 Portfolio"), PIMCO Funds Asset Allocation
            Series--60/40 Portfolio (the "60/40 Portfolio") and PIMCO Funds
            Asset Allocation Series--30/70 Portfolio (the "30/70 Portfolio").
 
               The Portfolios are intended for investors who prefer to have
            their asset allocation decisions made by professional money manag-
            ers. Each Portfolio has a distinct investment objective which it
            seeks to achieve by investing within specified equity and fixed
            income ranges among certain series ("Underlying Funds" or "Funds")
            of the Trust and PIMCO Funds: Pacific Investment Management Se-
            ries. PIMCO Advisors serves as investment adviser for each Fund of
            the Trust and its affiliate, Pacific Investment Management Company
            ("Pacific Investment Management"), serves as investment adviser
            for each Fund of PIMCO Funds: Pacific Investment Management Se-
            ries. Some of the Underlying Funds invest primarily in equity se-
            curities ("Underlying Stock Funds"); other Funds invest primarily
            in fixed income securities, including money market instruments
            ("Underlying Bond Funds"). The Portfolios are named in accordance
            with their equity/fixed income allocation targets. For instance,
            the 90/10 Portfolio will normally invest approximately 90% of its
            assets in Underlying Stock Funds and 10% of its assets in Under-
            lying Bond Funds. The following summarizes certain key information
            relating to the Portfolios and is qualified in its entirety by the
            more detailed information contained elsewhere in this Prospectus.
 
Portfolio
Profiles
<TABLE>
<CAPTION>
           PIMCO Funds
           Asset Allocation Series Investment Objective                              Allocation Strategy
           --------------------------------------------------------------------------------------------------
           <C>                     <C>                                               <S>
           90/10 Portfolio         Long-term capital appreciation                    Under normal conditions,
                                                                                     approximately 90% of the
                                                                                     Portfolio's assets will
                                                                                     be allocated among
                                                                                     Underlying Stock Funds
                                                                                     and 10% among Underlying
                                                                                     Bond Funds.
           --------------------------------------------------------------------------------------------------
           60/40 Portfolio         Long-term capital appreciation and current income Under normal conditions,
                                                                                     approximately 60% of the
                                                                                     Portfolio's assets will
                                                                                     be allocated among
                                                                                     Underlying Stock Funds
                                                                                     and 40% among Underlying
                                                                                     Bond Funds.
           --------------------------------------------------------------------------------------------------
           30/70 Portfolio         Current income, with long-term                    Under normal conditions,
                                   capital appreciation as a secondary objective     approximately 30% of the
                                                                                     Portfolio's assets will
                                                                                     be allocated among
                                                                                     Underlying Stock Funds
                                                                                     and 70% among Underlying
                                                                                     Bond Funds.
</TABLE>
 
 
               The Underlying Funds have different investment objectives and
            policies and different degrees of potential investment risk and
            reward. Based on the allocation strategies listed above, an in-
            vestor should choose among the Portfolios based on personal objec-
            tives, investment time horizon, tolerance for risk and personal
            financial circumstances. For example, because the 90/10 Portfolio
            will normally invest approximately 90% of its assets in Underlying
            Stock Funds, this Portfolio might be suitable for an investor with
            a relatively long time horizon who seeks long-term capital appre-
            ciation potential and has a fairly high tolerance for risk and
            volatility. An investor with a shorter time horizon who seeks a
            balance of income and long-term capital appreciation and has less
            tolerance for risk and volatility might choose the 60/40 Portfo-
            lio, which invests in a fairly balanced portfolio of Underlying
            Stock and Bond Funds. An investor who seeks a higher level of cur-
            rent income combined with some potential for long-term capital ap-
            preciation and has a lower tolerance for risk and volatility might
            choose the 30/70 Portfolio, which will normally invest approxi-
            mately 70% of its assets in Underlying Bond Funds. While each
            Portfolio provides a relatively high level of diversification in
            comparison to most mutual funds, a single Portfolio may not be
            suitable as a complete investment program. For a more complete de-
            scription of the investment objectives and policies of the Portfo-
            lios, please see "Investment Objectives and Policies."
 
               Because each Portfolio will invest all of its assets in the Un-
            derlying Funds, each Portfolio's investment performance is di-
            rectly related to the investment performance of the Underlying
            Funds in which it invests. The ability of a Portfolio to realize
            its investment objective will depend upon the extent to which the
            Underlying Funds realize their objectives. The value of the Under-
            lying Funds' investments, and the net asset values of the shares
            of both the Underlying Funds and the Portfolios, will fluctuate in
            response to changes in market and economic conditions, as well as
            the financial condition and prospects of issuers in which the Un-
            derlying Funds invest.
 
                                                November 1, 1998 Prospectus 3

<PAGE>
 
 
               The possible use of certain investment techniques by an Under-
            lying Fund, including various derivative instruments such as
            futures contracts, options and swap agreements, will subject the
            Fund to greater risk than Funds that do not employ such tech-
            niques. In addition, investments by certain Underlying Funds in
            small market capitalization companies, foreign issuers (including
            emerging market issuers) and foreign currencies, illiquid securi-
            ties and other instruments will expose those Funds to a higher de-
            gree of risk and price volatility. Some Underlying Funds may also
            invest in fixed income securities rated below investment grade
            (commonly referred to as "high yield" securities or "junk" bonds),
            which are considered to be speculative by traditional investment
            standards. Each Portfolio may be subject to these and other risks
            associated with investments in the Underlying Funds depending upon
            the Portfolio's asset allocation strategy. For a description of
            the various risks associated with the Portfolios and the Under-
            lying Funds, see "Investment Objectives and Policies" and "Under-
            lying Funds" in this Prospectus, "Investment Objectives and Poli-
            cies" in the Statement of Additional Information and "Characteris-
            tics and Risks of Securities and Investment Techniques" in the Un-
            derlying Fund Prospectuses, which are incorporated herein by ref-
            erence and are available free of charge by telephoning the Dis-
            tributor at 1-800-426-0107.
 
               Potential investors in the Portfolios should realize that they
            may invest directly in the Underlying Funds and make their own as-
            set allocation decisions. By investing in a Portfolio, an investor
            will incur not only a proportionate share of the expenses of the
            Portfolio but also a portion of the expenses of the Underlying
            Funds in which the Portfolio invests (including investment advi-
            sory and administrative fees charged at the Underlying Fund lev-
            el).  See "Schedule of Fees" and "Management of the Portfolios--
            Underlying Fund Expenses."
 
            Schedule of Fees
 
            Expenses are one of several factors to consider when investing in
            Class A, Class B or Class C shares of the Portfolios. The follow-
            ing tables and Examples summarize the expenses of each Portfolio
            that are borne by its Class A, Class B and Class C shareholders
            based on estimated expenses for the Portfolio's current fiscal
            year.
               You should bear in mind that shareholders of each Portfolio
            bear indirectly the expenses of the Underlying Funds in which the
            Portfolio invests. The Portfolios will invest only in Institu-
            tional Class shares of the Underlying Funds and will not pay any
            sales charges or 12b-1 fees in connection with their investments
            in the Underlying Funds. The Portfolios will, however, indirectly
            bear their pro rata share of the fees and expenses (including ad-
            visory and administrative fees) incurred by the Underlying Funds
            that are borne by all Institutional Class shareholders. Because
            the Underlying Funds have varied fee and expense levels and the
            Portfolios will own different proportions of the Underlying Funds
            at different times, the actual fees and expenses indirectly in-
            curred by the Portfolios will vary.
  
<TABLE>
<CAPTION>
                                              Class A     Class B     Class C
                                              Shares      Shares      Shares
            --------------------------------------------------------------------
           <S>                                <C>         <C>         <C>
            Maximum initial sales charge im-
            posed on purchases
            (as a percentage of offering
            price at time of purchase)
             90/10 Portfolio and 60/40 Port-
              folio                            5.50%       None        None
             30/70 Portfolio                   4.50%       None        None
            --------------------------------------------------------------------
            Maximum sales charge imposed on
            reinvested dividends
            (as a percentage of net asset
            value at time of purchase)          None       None        None
            --------------------------------------------------------------------
            Maximum contingent deferred sales
            charge ("CDSC")
            (as a percentage of original
            purchase price)                       1%(/1/)    5%(/2/)     1%(/3/)
            --------------------------------------------------------------------
            Exchange Fee                         None       None        None
</TABLE>
 
Shareholder
Transaction
Expenses
 
            1. Imposed only in certain circumstances where Class A shares are
            purchased without a front-end sales charge at the time of pur-
            chase. See "Alternative Purchase Arrangements."
            2. The maximum CDSC is imposed on shares redeemed in the first
            year. For shares held longer than one year, the CDSC declines ac-
            cording to the schedule set forth under "Alternative Purchase Ar-
            rangements--Deferred Sales Charge Alternative--Class B Shares."
            3. The CDSC on Class C shares is imposed only on shares redeemed
            in the first year.
 
4 PIMCO Funds Asset Allocation Series
                                       
<PAGE>

<TABLE>
<CAPTION>
                                                                                       Example: You  Example: You
                                                                                       would pay     would pay
                                                                                       the           the
                                                                                       following     following
                                                                                       expenses on   expenses on
                                                                                       a $1,000      a $1,000
                                                                                       investment    investment
                                                                                       assuming      assuming (1)
                                                                                       (1) 5%        5% annual
                                                                                       annual        return and
                                                                                       return and    (2) no
                                                                                       (2)           redemption:
                                                                                       redemption
                                                                                       at the end
                              Annual Portfolio Operating Expenses                      of each time
                              (As a percentage of average net assets):                 period:
                                                                         Total
           PIMCO Funds                 Admini-             Underlying    Portfolio
           Asset Allocation   Advisory strative  12b-1     Fund          Operating     One    Three  One    Three
           Series             Fees     Fees(/1/) Fees(/2/) Expenses(/3/) Expenses(/3/) Year   Years  Year   Years
           -------------------------------------------------------------------------------------------------------
           <S>                <C>      <C>       <C>       <C>           <C>           <C>    <C>    <C>    <C>
Class A    90/10 Portfolio    None     .40%       .25%     .79%          1.44%         $   69 $   98 $   69 $   98
Shares     -------------------------------------------------------------------------------------------------------
           60/40 Portfolio    None     .40        .25      .67           1.32              68     95     68     95
           -------------------------------------------------------------------------------------------------------
           30/70 Portfolio    None     .40        .25      .55           1.20              57     81     57     81
Class B    90/10 Portfolio    None     .40       1.00      .79           2.19              72     99     22     69
Shares     -------------------------------------------------------------------------------------------------------
           60/40 Portfolio    None     .40       1.00      .67           2.07              71     95     21     65
           -------------------------------------------------------------------------------------------------------
           30/70 Portfolio    None     .40       1.00      .55           1.95              70     91     20     61
Class C    90/10 Portfolio    None     .40       1.00      .79           2.19              32     69     22     69
Shares     -------------------------------------------------------------------------------------------------------
           60/40 Portfolio    None     .40       1.00      .67           2.07              31     65     21     65
           -------------------------------------------------------------------------------------------------------
           30/70 Portfolio    None     .40       1.00      .55           1.95              30     61     20     61
</TABLE>

            1. The Administrative Fees for each Portfolio are subject to re-
            duction to the extent that the average net assets attributable in
            the aggregate to the Portfolio's Class A, Class B and Class C
            shares exceed $2.5 billion. See "Management of the Portfolios--Ad-
            ministrative Fees."
            2. 12b-1 fees which are equal to .25% represent servicing fees
            which are paid annually to the Distributor and repaid to partici-
            pating brokers, certain banks and other financial intermediaries.
            12b-1 fees which exceed .25% represent aggregate distribution and
            servicing fees. See "Distributor and Distribution and Servicing
            Plans."
            3. Based on estimated expenses for the current fiscal year. Under-
            lying Fund Expenses for each Portfolio are estimated based upon
            the initial allocation of each Portfolio's assets among the Under-
            lying Funds and upon the total annual operating expenses of each
            Underlying Fund. For a listing of the expenses associated with
            each Underlying Fund, please see "Management of the Portfolios--
            Underlying Fund Expenses." Total Portfolio Operating Expenses and
            the Examples set forth above are based on estimates of the Under-
            lying Fund Expenses each Portfolio will incur. Actual Underlying
            Fund Expenses for each Portfolio are expected to vary with changes
            in the allocation of the Portfolio's assets, and may be higher or
            lower than those shown above.
 
            The purpose of the foregoing tables is to assist investors in un-
            derstanding the various costs and expenses of the Trust that are
            borne directly or indirectly by Class A, Class B and Class C
            shareholders of the Portfolios. The Examples for Class A shares
            assume payment of the current maximum applicable sales load. Due
            to the 12b-1 distribution fee imposed on Class B and Class C
            shares, a Class B or Class C shareholder of a Portfolio may, de-
            pending on the length of time the shares are held, pay more than
            the economic equivalent of the maximum front-end sales charges
            permitted by relevant rules of the National Association of Securi-
            ties Dealers, Inc.
 
            NOTE: The figures shown in the Examples are entirely hypothetical.
            They are not representations of past or future performance or ex-
            penses; actual performance and/or expenses may be more or less
            than shown.
 
                                               November 1, 1998 Prospectus 5
<PAGE>
 
            Investment Objectives and Policies

            The investment objective and general investment policies of each
            Portfolio are described below. There can be no assurance that the
            investment objective of any Portfolio will be achieved. Because
            the market value of each Portfolio's investments will change, the
            net asset value per share of each Portfolio will also vary.
               The Portfolios are intended for investors who prefer to have
            their asset allocation decisions made by professional money manag-
            ers. Each Portfolio seeks to achieve its investment objective by
            investing within specified equity and fixed income ranges among
            the Underlying Funds. Each Underlying Fund is a series of the
            Trust or PIMCO Funds: Pacific Investment Management Series and is
            managed by PIMCO Advisors and/or its affiliates. The Portfolios
            have different investment objectives and policies and degrees of
            potential investment risk and reward depending upon their alloca-
            tion strategies. An investor should choose a Portfolio based on
            personal objectives, investment time horizon, tolerance for risk
            and personal financial circumstances.
 
Descriptions
Portfolio    
            90/10 Portfolio seeks long-term capital appreciation. Under normal
            conditions, approximately 90% of the Portfolio's assets will be
            allocated among Underlying Stock Funds and 10% among Underlying
            Bond Funds.
 
            60/40 Portfolio seeks long-term capital appreciation and current
            income. Under normal conditions, approximately 60% of the Portfo-
            lio's assets will be allocated among Underlying Stock Funds and
            40% among Underlying Bond Funds.
 
            30/70 Portfolio seeks current income. Long-term capital apprecia-
            tion is a secondary objective. Under normal conditions, approxi-
            mately 30% of the Portfolio's assets will be allocated among Un-
            derlying Stock Funds and 70% among Underlying Bond Funds.
               Unless otherwise noted, each Portfolio's investment objective
            and its restrictions and policies relating to the investment of
            its assets are non-fundamental and may be changed without share-
            holder approval.
 
               PIMCO Advisors serves as the investment adviser to the Portfo-
            lios and determines how each Portfolio's assets are allocated
            among the Underlying Funds. Each Portfolio invests in particular
            Underlying Funds (which may differ from time to time) based on
            various criteria observed by PIMCO Advisors. Among other things,
            PIMCO Advisors analyses the various investment objectives, poli-
            cies and strategies of the Underlying Funds to determine which
            Funds, in combination with others, are appropriate in light of a
            Portfolio's investment objective. PIMCO Advisors then makes allo-
            cation decisions among these Underlying Funds in an attempt to
            achieve the Portfolio's objective. The table below illustrates the
            initial equity and fixed income allocation targets and typical
            ranges for each Portfolio under normal market conditions.
 
            Equity and Fixed Income Ranges
            (as a percentage of each Portfolio's average net assets)
 
<TABLE>
<CAPTION>
                                                                Typical
           PIMCO Funds                               Target     Allocation
           Asset Allocation Series                   Allocation Range*
           ---------------------------------------------------------------
           <S>                                       <C>        <C>
           90/10 Portfolio
            Equity                                   90%        80% - 100%
            Fixed Income (including money market**)  10%         0% -  20%
           ---------------------------------------------------------------
           60/40 Portfolio
            Equity                                   60%        50% -  70%
            Fixed Income (including money market**)  40%        30% -  50%
           ---------------------------------------------------------------
           30/70 Portfolio
            Equity                                   30%        25% -  35%
            Fixed Income (including money market**)  70%        65% -  75%
</TABLE>
 
             * Each Portfolio may temporarily deviate from its asset alloca-
            tion range for defensive purposes.
            ** Each Portfolio may hold a portion of its assets in PIMCO Money
             Market Fund, in part, so that it can readily sell the securities
             and have cash available to pay Portfolio expenses without incur-
             ring capital gains.
 
6 PIMCO Funds Asset Allocation Series

<PAGE>
 
 
               Each Portfolio is authorized to invest in any or all of the Un-
            derlying Funds. However, it is expected that a Portfolio will in-
            vest in only some of the Underlying Funds at any particular time.
            A Portfolio's investment in a particular Underlying Fund may and
            in some cases is expected to exceed 25% of its total assets. To
            the extent that a Portfolio invests a significant portion of its
            assets in an Underlying Fund, it will be particularly sensitive to
            the risks associated with that Fund. Please see "Underlying Funds"
            and "Principal Risks of the Underlying Funds" below for a descrip-
            tion of the Underlying Funds and their attendant risks. The par-
            ticular Underlying Funds in which each Portfolio may invest, the
            equity and fixed income allocation targets and ranges specified
            above, and the percentage of each Portfolio's assets invested from
            time to time in any Underlying Fund or combination of Funds may be
            changed from time to time without the approval of the Portfolio's
            shareholders.
               Each Portfolio's net asset value will fluctuate in response to
            changes in the net asset values of the Underlying Funds in which
            it invests. Each Portfolio will invest all of its assets in Under-
            lying Funds, and may invest up to 100% of its assets in PIMCO
            Money Market Fund (and thereby deviate from its asset allocation
            range) for temporary defensive purposes. A Portfolio may also bor-
            row money for temporary or emergency purposes.
               Each Portfolio is also subject to certain investment restric-
            tions that are described under "Investment Restrictions" in the
            Statement of Additional Information.

Overview of 
Asset       
Allocation   
 
            PIMCO Advisors' Asset Allocation Committee determines how the
            Portfolios' assets are allocated and reallocated from time to time
            among the Underlying Funds. The individuals who constitute the As-
            set Allocation Committee and are primarily responsible for making
            asset allocation and other investment decisions for the Portfolios
            are William D. Cvengros, Timothy R. Clark, Robert S. Venable, Da-
            vid Young and Edward P. Rennie. Please see "Management of the
            Portfolios" for a description of PIMCO Advisors and the individu-
            als on the Asset Allocation Committee.
               PIMCO Advisors' approach to asset allocation encompasses both
            quantitative and qualitative processes designed to allocate the
            Portfolios' assets among multiple Underlying Funds in order to
            achieve broadly diversified Portfolios. The Asset Allocation
            Com-mittee meets regularly to analyze various economic and
            market da-ta. The Committee also collects and synthesizes
            multiple proprie-tary models maintained by the Portfolio
            Managers of the Underlying Funds, each of which is an affiliate
            of PIMCO Advisors. See "Man-agement of the Portfolios--
            Portfolio Managers for the Underlying Funds." These models are
            quantitatively compiled by the Committee to provide a framework
            for developing PIMCO Advisors' allocation strategies with
            respect to the major asset classes and sub-classes held by the
            Underlying Funds.
               The resulting framework assists the Asset Allocation Committee
            in the following ways: (1) it identifies the desired tactical al-
            location ranges for the Portfolios around long-term strategic
            broad asset class and sub-class targets, (2) it identifies indi-
            vidual Funds among the Underlying Funds that are expected to pro-
            vide consistent, quality performance in the various asset classes
            and sub-classes identified for the Portfolios, and (3) it is used
            by the Committee in its on-going evaluation of the equity and
            fixed income markets in an attempt to identify and implement val-
            ue-added tactical shifts for the Portfolios. These tactical shifts
            and resulting reallocations of Portfolio assets are not expected
            to be large or frequent in nature, and should result in modest
            levels of portfolio turnover for the Portfolios. See "Portfolio
            Turnover."
 
 
Equity
Portion of  The equity portion of each Portfolio will be allocated among a
the         number of Underlying Stock Funds which provide a broad range of
Portfolios  equity-based investment objectives and strategies. By allocating
            assets among these Funds, the equity portions of the Portfolios
            can be diversified in multiple ways, including the following:
 
            By Region
                [ ] U.S. Equities
                [ ] International Developed Markets Equities
                [ ] International Emerging Markets Equities
 
                                               November 1, 1998 Prospectus 7
<PAGE>
 
 
            By Investment Style
                [ ] Blend (Broad Market)
                [ ] Value
                [ ] Growth
 
            By Size
                [ ] Large-Cap
                [ ] Mid-Cap
                [ ] Small-Cap
 
               For a description of the Underlying Stock Funds and their in-
            vestment objectives and strategies, please see "Underlying Funds."
            The Portfolio Managers for the Underlying Stock Funds each have
            different investment philosophies and processes which are re-
            flected in the Funds they manage. Through asset allocation, PIMCO
            Advisors can take advantage of the expertise of each Portfolio
            Manager and combine the investment styles set forth above in pro-
            viding broadly diversified Portfolios. For a description of each
            Portfolio Manager and its particular investment philosophy and
            process, please see "Management of the Portfolios--Portfolio Man-
            agers for the Underlying Funds."
 
 
Fixed       The fixed income portion of each Portfolio will be allocated among
Income      a number of Underlying Bond Funds which provide a broad range of
Portion of  fixed income-based investment objectives and strategies. By allo-
the         cating assets among these Funds, the fixed income portions of the
Portfolios  Portfolios can be diversified in multiple ways, including the fol-
            lowing:
 
            By Region
                [ ] U.S. Fixed Income
                [ ] Foreign Fixed Income
 
            By Sector/Investment Specialty
                [ ] Governments
                [ ] Mortgages
                [ ] Corporate
                   
                [ ] Inflation-Indexed     
 
            By Credit Quality
                [ ] Investment Grade/Money Market
                [ ] Medium Grade
                [ ] High Yield
 
            By Duration
                [ ] Long-Term
                [ ] Intermediate-Term
                [ ] Short-Term
 
               For a description of the Underlying Bond Funds and their in-
            vestment objectives and strategies, please see "Underlying
            Funds." Pacific Investment Management is the investment adviser
            and Port-folio Manager for each Underlying Bond Fund. Through
            asset alloca-tion, PIMCO Advisors can take advantage of the
            broad fixed income expertise of Pacific Investment Management
            and combine the invest-ment styles set forth above in providing
            broadly diversified Port-folios. For a description of Pacific
            Investment Management and its investment philosophy and
            process, please see "Management of the Portfolios--Portfolio
            Managers for the Underlying Funds."
 
8 PIMCO Funds Asset Allocation Series

<PAGE>
 
 
Potential   As described above, PIMCO Advisors has broad discretion to allo-
Conflicts   cate and reallocate the Portfolios' assets among the Underlying
of Interest Funds consistent with the Portfolios' investment objectives and
            policies and the asset allocation ranges specified above. Although
            PIMCO Advisors does not charge an investment advisory fee for its
            asset allocation services, PIMCO Advisors and its affiliates indi-
            rectly receive fees (including investment advisory and administra-
            tive fees) from the Underlying Funds in which the Portfolios in-
            vest. In this regard, PIMCO Advisors has a financial incentive to
            invest a Portfolio's assets in Underlying Funds with higher fees
            than other Funds, even if it believes that alternate investments
            would better serve the Portfolio's investment program. PIMCO Advi-
            sors is legally obligated to disregard that incentive in making
            asset allocation decisions for the Portfolios. The Trustees and
            officers of the Trust may also have conflicting interests in ful-
            filling their fiduciary duties to both the Portfolios and the Un-
            derlying Funds.
 
 
General     Because the Portfolios invest all of their assets in the Under-
Risks of    lying Funds, the risks associated with investing in the Portfolios
Investing   are closely related to the risks associated with the securities
in the      held by the Underlying Funds. The ability of a Portfolio to
Portfolios  achieve its investment objective will depend upon the ability of
            the Underlying Funds to achieve their objectives. Of course, the
            extent to which the investment performance and risks associated
            with a particular Portfolio correlate to those of a particular Un-
            derlying Fund will depend upon the extent to which the Portfolio's
            assets are allocated from time to time for investment in the Un-
            derlying Fund. For a description of the principal risks associated
            with investments in the Underlying Funds, please see "Underlying
            Funds--Principal Risks of the Underlying Funds" in this Prospec-
            tus, "Investment Objectives and Policies" in the Statement of Ad-
            ditional Information and "Characteristics and Risks of Securities
            and Investment Techniques" in the Underlying Fund Prospectuses,
            which are incorporated herein by reference and are available free
            of charge by telephoning the Distributor at 1-800-426-0107.
 
 
Portfolio   A change in the securities held by a Portfolio is known as "port-
Turnover    folio turnover." Because PIMCO Advisors does not expect to reallo-
            cate the Portfolios' assets among the Underlying Funds on a fre-
            quent basis, the portfolio turnover rates for the Portfolios are
            expected to be modest (i.e., less than 25%) in comparison to most
            mutual funds. However, the Portfolios' indirectly bear the ex-
            penses associated with portfolio turnover of the Underlying Funds,
            a number of which have fairly high portfolio turnover rates (i.e.,
            in excess of 100%). High portfolio turnover involves correspond-
            ingly greater expenses to an Underlying Fund, including brokerage
            commissions or dealer mark-ups and other transaction costs on the
            sale of securities and reinvestments in other securities. Share-
            holders in the Portfolios may also bear expenses directly or indi-
            rectly through sales of securities held by the Portfolios and the
            Underlying Funds which result in realization of ordinary income or
            taxable capital gains (including short-term capital gains which
            are generally taxed at ordinary income tax rates). See "Taxes."
 
 
Service     Many of the services provided to the Portfolios depend on the
Systems --  smooth functioning of computer systems. Many systems in use today
Year 2000   cannot distinguish between the year 1900 and the year 2000. Should
Problem     any of the service systems fail to process information properly,
            that could have an adverse impact on the Portfolios' operations
            and services provided to shareholders. The Adviser, Distributor,
            Shareholder Servicing and Transfer Agent, Custodian, and certain
            other service providers to the Portfolios have reported that each
            is working toward mitigating the risks associated with the so-
            called "year 2000 problem." However, there can be no assurance
            that the problem will be corrected in all respects and that the
            Portfolios' operations and services provided to shareholders will
            not be adversely affected, nor can there be any assurance that the
            year 2000 problem will not have an adverse effect on the entities
            whose securities are held by the Underlying Funds or on domestic
            or global equity markets or economies, generally.
  
"Fundamental"
Policies
            The investment objective of each Portfolio described in this
            Prospectus may be changed by the Board of Trustees without
            shareholder approval. If there is a change in a Portfolio's
            investment objective, shareholders should consider whether the
            Portfolio remains an appropriate investment in light of their
            then current financial positions and needs.
 
                                               November 1, 1998 Prospectus 9
<PAGE>
 
            Underlying Funds

            Each Portfolio invests all of its assets in Underlying Funds. Ac-
            cordingly, each Portfolio's investment performance depends upon a
            favorable allocation among the Underlying Funds as well as the
            ability of the Underlying Funds to meet their objectives. There
            can be no assurance that the investment objective of any Under-
            lying Fund will be achieved. Shares of the Underlying Funds are
            not offered in this Prospectus.
 
 
Portfolio      
Managers    PIMCO Advisors serves as investment adviser for each of the Under-
            lying Stock Funds. The PIMCO Equity Advisors Division of PIMCO Ad-
            visors manages the investments of PIMCO Innovation Fund. Affili-
            ates of PIMCO Advisors serve as sub-advisers for the remaining Un-
            derlying Stock Funds, except that another affiliate, Pacific In-
            vestment Management, is the sole investment adviser to PIMCO
            StocksPLUS Fund. Under these arrangements, the sub-advisers, the
            PIMCO Equity Advisors Division and Pacific Investment Management
            (referred to collectively as "Portfolio Managers") have full in-
            vestment discretion and make all determinations with respect to
            the investment of the assets of these Funds. Pacific Investment
            Management is also the sole investment adviser to each Underlying
            Bond Fund. The Portfolio Managers and their investment specialties
            are listed below.     
 
 
<TABLE>   
<CAPTION>
           Portfolio Manager                                  Investment Specialty
           ---------------------------------------------------------------------------
           <C>                                                <S>
           PIMCO Equity Advisors Division of PIMCO Advisors   [to be provided]
                                                              ------------------------
           Pacific Investment Management                      All sectors of the bond
                                                              market using its total
                                                              return philosophy--
                                                              seeking both yield and
                                                              capital appreciation
                                                              ------------------------
           Cadence Capital Management ("Cadence")             Stocks of growth
                                                              companies that the
                                                              Portfolio Manager
                                                              believes are trading at
                                                              a reasonable price
                                                              ------------------------
           Columbus Circle Investors ("Columbus Circle")      Stocks, using its
                                                              "Positive Momentum &
                                                              Positive Surprise"
                                                              discipline
                                                              ------------------------
           NFJ Investment Group ("NFJ")                       Value stocks that the
                                                              Portfolio Manager
                                                              believes are undervalued
                                                              and/or offer above-
                                                              average dividend yields
                                                              ------------------------
           Blairlogie Capital Management ("Blairlogie") (/1/) International stocks
                                                              using Scottish standards
                                                              of prudent investment
                                                              management with modern
                                                              quantitative analytical
                                                              tools
                                                              ------------------------
           Parametric Portfolio Associates ("Parametric")     Stocks, using
                                                              quantitatively-driven
                                                              fundamental analysis and
                                                              economic methods, with
                                                              specialties in emerging
                                                              markets and tax-
                                                              efficient products
</TABLE>    
               
            1. On or before March 31, 1999, it is anticipated that PIMCO
               Advisors will sell substantially all of its ownership interest
               in Blairlogie. See "Management of the Portfolios--Portfolio
               Managers for the Underlying Funds--Blairlogie."     
 
10 PIMCO Funds Asset Allocation Series

<PAGE>
 
Underlying  The following provides a concise description of the investment ob-
Stock Funds jective and primary investments of each Underlying Stock Fund and
            lists the Fund's Portfolio Manager. For a complete description of
            these Funds, please see the Underlying Fund Prospectuses, which
            are incorporated herein by reference and are available free of
            charge by telephoning the Distributor at 1-800-426-0107.
 
 
 
<TABLE>   
<CAPTION>

                         Fund Name              Investment Objective     Primary Investments         Portfolio Manager
          ------------------------------------------------------------------------------------------------------------
          <S>            <C>                    <C>                      <C>                         <C>
          Stock Funds    PIMCO Equity Income    Current income as a      Common stocks with below-   NFJ
                                                primary objective; long- average price to earnings
                                                term growth of capital   ratios and higher dividend
                                                as a secondary objective yields relative to their
                                                                         industry groups
                         ----------------------------------------------------------------------------------------
                         PIMCO Renaissance      Long-term growth of      Common stocks with below-   Columbus Circle
                                                capital and income       average valuations that
                                                                         have improving business
                                                                         fundamentals
                         ----------------------------------------------------------------------------------------
                         PIMCO Core Equity      Long-term growth of      Common stocks of companies  Columbus Circle
                                                capital; income as a     with market
                                                secondary objective      capitalizations in excess
                                                                         of $3 billion
                         ----------------------------------------------------------------------------------------
                         PIMCO Mid-Cap Equity   Long-term growth of      Common stocks of companies  Columbus Circle
                                                capital                  with market
                                                                         capitalizations between
                                                                         $800 million and $3
                                                                         billion
                         ----------------------------------------------------------------------------------------
                         PIMCO Value            Long-term growth of      Common stocks with below-   NFJ
                                                capital and income       average price to earnings
                                                                         ratios relative to their
                                                                         industry groups
                         ----------------------------------------------------------------------------------------
                         PIMCO Value 25         Long-term growth of      Approximately 25 common     NFJ
                                                capital and income       stocks of companies with
                                                                         medium market
                                                                         capitalizations and below-
                                                                         average price to earnings
                                                                         ratios relative to their
                                                                         industry groups
                         ----------------------------------------------------------------------------------------
                         PIMCO Capital          Growth of capital        Common stocks of companies  Cadence
                         Appreciation                                    with market
                                                                         capitalizations of at
                                                                         least $1 billion that have
                                                                         improving fundamentals and
                                                                         whose stock is reasonably
                                                                         valued by the market
                         ----------------------------------------------------------------------------------------
                         PIMCO Mid-Cap Growth   Growth of capital        Common stocks of companies  Cadence
                                                                         with market
                                                                         capitalizations in excess
                                                                         of $500 million that have
                                                                         improving fundamentals and
                                                                         whose stock is reasonably
                                                                         valued by the market
                         ----------------------------------------------------------------------------------------
                         PIMCO Enhanced Equity  Total return which       Commons stocks represented  Parametric
                                                equals or exceeds the    in the S&P 500
                                                total return performance
                                                of an index representing
                                                the performance of a
                                                reasonably broad
                                                spectrum of common
                                                stocks (currently the
                                                S&P 500 (/2/))
                         ----------------------------------------------------------------------------------------
                         PIMCO Tax-Efficient    Maximum after-tax growth A broadly diversified       Parametric
                         Equity                 of capital               portfolio of at least 200
                                                                         common stocks of companies
                                                                         with larger
                                                                         market capitalizations
          ------------------------------------------------------------------------------------------------------------
          Aggressive     PIMCO Small-Cap Value  Long-term growth of      Common stocks of companies  NFJ
          Stock Funds                           capital and income       with market
                                                                         capitalizations between
                                                                         $50 million and $1 billion
                                                                         and below-average price to
                                                                         earnings ratios relative
                                                                         to their industry groups
                         ----------------------------------------------------------------------------------------
                         PIMCO Small-Cap Growth Growth of capital        Common stocks of companies  Cadence
                                                                         with market
                                                                         capitalizations between
                                                                         $50 million and $1 billion
                                                                         that have improving
                                                                         fundamentals and whose
                                                                         stock is reasonably valued
                                                                         by the market
                         ----------------------------------------------------------------------------------------
                         PIMCO Micro-Cap Growth Long-term growth of      Common stocks of companies  Cadence
                                                capital                  with market
                                                                         capitalizations of less
                                                                         than $100 million that
                                                                         have improving
                                                                         fundamentals and whose
                                                                         stock is reasonably valued
                                                                         by the market
          ------------------------------------------------------------------------------------------------------------
          International  PIMCO International    Capital appreciation;    Non-U.S. stocks of          Blairlogie (/1/)
          Stock Funds                           income is incidental     companies with small,
                                                                         medium and large market
                                                                         capitalizations (developed
                                                                         and emerging markets)
                         ----------------------------------------------------------------------------------------
                         PIMCO International    Long-term capital        An international portfolio  Columbus Circle
                         Growth                 appreciation             of equity and equity-
                                                                         related securities
                         ----------------------------------------------------------------------------------------
                         PIMCO Structured       Long-term growth of      Common stocks of companies  Parametric
                         Emerging Markets       capital                  located in emerging market
                                                                         countries
                         ----------------------------------------------------------------------------------------
                         PIMCO Tax-Efficient    Same as PIMCO Structured Common stocks of companies  Parametric
                         Structured             Emerging Markets Fund,   located in emerging market
                         Emerging Markets       except that the Fund     countries
                                                seeks to achieve
                                                superior after-tax
                                                returns by employing a
                                                variety of tax-efficient
                                                management strategies
          ------------------------------------------------------------------------------------------------------------
          Specialized    PIMCO Innovation       Capital appreciation; no Common stocks of companies  PIMCO Equity
          Stock Funds                           consideration            with small, medium and      Advisors Division
                                                given to income          large market
                                                                         capitalizations
                                                                         (technology-related stocks)
                         ----------------------------------------------------------------------------------------
                         PIMCO StocksPLUS       Total return which       S&P 500 stock index         Pacific
                                                exceeds the total        derivatives backed by       Investment
                                                return performance of    a portfolio of fixed        Management
                                                the S&P 500              income securities
</TABLE>    
               
            1. [On or before March 31, 1999, it is anticipated that PIMCO Ad-
               visors will sell substantially all of its ownership interest in
               Blairlogie and assume full portfolio management responsibility
               for PIMCO International Fund.]     
            2. The Standard & Poor's 500 Composite Stock Price Index.
 
                                              November 1, 1998 Prospectus 11
<PAGE>

Underlying Bond
Funds
            Pacific Investment Management has full investment discretion and
            makes all determinations with respect to the investment of the as-
            sets of each Underlying Bond Fund.
               The investment objective of each Underlying Bond Fund (except
            as provided below) is to seek to realize maximum total return,
            consistent with preservation of capital and prudent investment
            management. The "total return" sought by most of the Underlying
            Bond Funds will consist of interest and dividends from underlying
            securities and capital appreciation or depreciation reflected in
            changes in the value of portfolio securities. The investment ob-
            jective of PIMCO Real Return Bond Fund is to seek to realize maxi-
            mum real return, consistent with preservation of real capital and
            prudent investment management. "Real return" is total return ad-
            justed for inflation. The investment objective of each of PIMCO
            Money Market Fund and PIMCO Short-Term Fund is to seek to obtain
            maximum current income consistent with preservation of capital and
            daily liquidity. PIMCO Money Market Fund also attempts to maintain
            a stable net asset value of $1.00 per share, although there can be
            no assurance that it will be successful in doing so.
               The following provides a concise description of the primary in-
            vestments of and other information relating to each Underlying
            Bond Fund. For a complete description of these Funds, please see
            the Underlying Fund Prospectus for PIMCO Funds: Pacific Investment
            Management Series, which is incorporated herein by reference and
            is available free of charge by telephoning the Distributor at 1-
            800-426-0107.
 
<TABLE>
<CAPTION>
                Fund Name                       Primary Investments          Duration         Credit Quality(/1/)       Foreign(/2/)
 -----------------------------------------------------------------------------------------------------------------------------------
 <C>            <C>                             <S>                          <C>              <C>                       <C> 
 Short-Term     PIMCO Money Market              Money market instruments     (less than or     Min 95% Aaa or Prime 1;  0%
 Bond                                                                        equal to) 90 days (less than or equal to)
 Funds                                                                       dollar-weighted   5% Aa or Prime 2
                                                                             average maturity
                --------------------------------------------------------------------------------------------------------------------
                PIMCO Short-Term                Money market instruments     0-1 yr           B to Aaa; max 10%         0-5%
                                                and short maturity                            below Baa
                                                fixed                      
                                                income securities          
                --------------------------------------------------------------------------------------------------------------------
                PIMCO Low Duration              Short and intermediate       1-3 yrs          B to Aaa; max 10%         0-20%
                                                maturity fixed income                         below Baa
                                                securities                 
 -----------------------------------------------------------------------------------------------------------------------------------
 Intermediate-  PIMCO Moderate Duration         Short and intermediate       2-5 yrs          B to Aaa; max 10%         0-20%
 Term                                           maturity fixed income                         below Baa
 Bond Funds                                     securities                 
                --------------------------------------------------------------------------------------------------------------------
                PIMCO Real Return Bond          Inflation-indexed fixed      N/A              B to Aaa; max 10%         0-35%
                                                income securities                             below Baa
                --------------------------------------------------------------------------------------------------------------------
                PIMCO Total Return              Intermediate maturity        3-6 yrs          B to Aaa; max 10%         0-20%
                                                fixed income securities                       below Baa
                --------------------------------------------------------------------------------------------------------------------
                PIMCO Total Return II           Same as PIMCO Total Return   3-6 yrs          Baa to Aaa                0%
                                                Fund, except that the      
                                                Fund is subject to         
                                                credit quality and         
                                                foreign issuer             
                                                restrictions               
                --------------------------------------------------------------------------------------------------------------------
                PIMCO High Yield                Higher yielding fixed        2-6 yrs          B to Aaa; min 65%         0%
                                                income securities                             below Baa
- ------------------------------------------------------------------------------------------------------------------------------------
 Long-Term      PIMCO Long-Term U.S. Government Long-term maturity           (greater than     A to Aaa                 0%
 Bond                                           fixed income securities      or equal to)
 Funds                                                                       8 yrs
 -----------------------------------------------------------------------------------------------------------------------------------
 International  PIMCO Global Bond               Intermediate maturity        3-7 yrs          B to Aaa; max 10%         25-75%
 Bond                                           U.S. and foreign fixed                        below Baa
 Funds                                          income                     
                                                securities                 
                --------------------------------------------------------------------------------------------------------------------
                PIMCO Foreign Bond              Intermediate maturity        3-7 yrs          B to Aaa; max 10%         (greater 
                                                hedged foreign fixed                          below Baa                 than or  
                                                income                                                                  equal to)
                                                securities                                                              85%       
                --------------------------------------------------------------------------------------------------------------------
                PIMCO Emerging Markets Bond     Emerging market fixed        0-8 yrs          B to Aaa                  (greater 
                                                income securities                                                       than or  
                                                                                                                        equal to)
                                                                                                                        80%       
</TABLE>
            1. As rated by Moody's Investors Service, Inc., or if unrated, de-
            termined by Pacific Investment Management to be of comparable
            quality.
            2. Percentage limitations relate to foreign currency-denominated
            securities for all Underlying Bond Funds except PIMCO Foreign
            Bond, Global Bond and Emerging Markets Bond Funds. Percentage lim-
            itations for these three Funds relate to securities of foreign is-
            suers, denominated in any currency. Each Underlying Bond Fund (ex-
            cept PIMCO Long-Term U.S. Government Fund) may invest beyond these
            limits in U.S. dollar-denominated securities of foreign issuers.
            PIMCO Long-Term U.S. Government Fund may not invest in any securi-
            ties of foreign issuers.
 
12 PIMCO Funds Asset Allocation Series
 
 
<PAGE>

 
               Each Underlying Bond Fund will normally invest at least 65% of
            its assets in the following types of securities, which, unless
            provided above, may be issued by domestic or foreign entities and
            denominated in U.S. dollars or foreign currencies: securities is-
            sued or guaranteed by the U.S. Government, its agencies or instru-
            mentalities ("U.S. Government securities"); corporate debt securi-
            ties, including convertible securities and corporate commercial
            paper; mortgage-backed and other asset-backed securities; infla-
            tion-indexed bonds issued by both governments and corporations;
            structured notes, including hybrid or "indexed" securities, catas-
            trophe bonds and loan participations; delayed funding loans and
            revolving credit facilities; bank certificates of deposit, fixed
            time deposits and bankers' acceptances; repurchase agreements and
            reverse repurchase agreements; debt securities issued by states or
            local governments and their agencies, authorities and instrumen-
            talities; obligations of foreign governments or their subdivi-
            sions, agencies and instrumentalities; and obligations of interna-
            tional agencies or supranational entities. Fixed income securities
            may have fixed, variable, or floating rates of interest, including
            rates of interest that vary inversely at a multiple of a desig-
            nated or floating rate, or that vary according to changes in rela-
            tive values of currencies. Most of the Underlying Bond Funds may
            (but are not required to) make substantial use of derivative in-
            struments or use a series of purchase and sale contracts or other
            investment techniques to obtain market exposure to the securities
            in which they primarily invest.

Additional
Underlying Funds
            In addition to the Funds listed above, a Portfolio may invest in
            additional Underlying Funds, including those that may become
            available for investment in the future, at the discretion of PIMCO
            Advisors and without shareholder approval.

Principal Risks of the        
Underlying Funds      
            There can be no assurance that the investment objectives of any of
            the Underlying Funds will be achieved. The following summarizes
            principal risks associated with investments in the Underlying
            Funds. The summary is not intended to be exhaustive. For a more
            complete description of these risks, please refer to "Investment
            Objectives and Policies" in the Statement of Additional Informa-
            tion and "Characteristics and Risks of Securities and Investment
            Techniques" in the Underlying Fund Prospectuses, which are incor-
            porated herein by reference and are available free of charge by
            telephoning the Distributor at 1-800-426-0107.
 
            Market Risk Most securities in which the Underlying Funds invest
            are subject to some degree of market risk, which is the risk of
            unfavorable market-induced changes in the value of a security. The
            following summarizes general market risks associated with invest-
            ments in fixed income and equity securities.
               Fixed Income Securities Changes in the market values of fixed
            income securities (i.e., capital appreciation or depreciation) are
            largely a function of changes in the current level of interest
            rates. The value of an Underlying Fund's investments in fixed in-
            come securities will typically change as the level of interest
            rates fluctuate. During periods of falling interest rates, the
            value of fixed income securities generally rise. Conversely, dur-
            ing periods of rising interest rates, the value of fixed income
            securities generally decline.
               "Duration" is one measure of the expected life of a fixed in-
            come security. When interest rates are falling, a portfolio with a
            shorter duration will generally not generate as high a level of
            total return as a portfolio with a longer duration. When interest
            rates are rising, a portfolio with a shorter duration will gener-
            ally outperform a longer duration portfolio. When interest rates
            are flat, shorter duration portfolios generally will not generate
            as high a level of total return as longer duration portfolios (as-
            suming that long-term interest rates are higher than short-term
            rates, which is commonly the case). Accordingly, longer duration
            portfolios generally have a greater potential for total return
            than shorter duration portfolios, but are also subject to greater
            levels of market risk and price volatility. Therefore, Underlying
            Bond Funds with longer average portfolio durations (e.g., PIMCO
            Long-Term U.S. Government Fund) are generally subject to higher
            levels of market risk than Funds with shorter durations (e.g.,
            PIMCO Money Market, Short-Term and Low Duration Funds). Also, some
            portfolios (e.g., those with mortgage-backed and other prepayable
            securities) have changing durations and may have increasing dura-
            tions precisely when that is least advantageous (i.e., when inter-
            est rates are rising).
               Certain types of securities in which the Underlying Bond Funds
            may invest are particularly sensitive to fluctuations in
            prevailing interest rates and have relatively high levels of
            market risk. These include various mortgage- related securities
            (for instance, the interest-only or "IO" class of a stripped
            mortgage-backed security) and "zero
 

                                                 November 1, 1998 Prospectus  13

<PAGE>


            coupon" securities (fixed income securities, including certain
            U.S. Government securities, that do not make periodic interest
            payments and are purchased at a discount from their value at
            maturity). Please see "Investment Objectives and Policies" in the
            Statement of Additional Information for a description of these and
            other fixed income securities that are particularly sensitive to
            market risk.
               Equity Securities Changes in the market values of equity secu-
            rities (i.e., capital appreciation or depreciation) may depend
            upon a number of factors, including: general economic and market
            conditions, prospects of the security's issuer, changing interest
            rates, real or perceived economic and competitive industry condi-
            tions, and currency exchange rates. Generally, over the long term,
            the total return obtained by a portfolio that invests primarily in
            equity securities has historically been greater than that obtained
            by a portfolio that invests primarily in fixed income securities.
            However, an equity portfolio is generally subject to greater mar-
            ket risk and price volatility than a fixed income portfolio and is
            considered to be a more aggressive investment.
 
            Credit Risk of Fixed Income Securities Credit risk associated with
            investments in fixed income securities relates to the ability of
            the issuer to make scheduled payments of principal and interest on
            an obligation. The Underlying Funds that invest in fixed income
            securities are subject to varying degrees of risk that the issuers
            of the securities will have their credit ratings downgraded or
            will default, potentially reducing the Underlying Fund's share
            price and income level. Nearly all fixed income securities are
            subject to some credit risk, whether the issuers of the securities
            are corporations, states and local governments or foreign govern-
            ments. Even certain U.S. Government securities are subject to
            credit risk.
               Credit risk is particularly acute for Underlying Funds which
            invest in so-called "high-yield" securities or "junk" bonds, which
            are fixed income securities rated lower than Baa by Moody's In-
            vestors Service, Inc. ("Moody's") or BBB by Standard & Poor's Rat-
            ings Services ("S&P"), or are determined to be of comparable qual-
            ity to securities so rated. While such securities offer the poten-
            tial for higher investment returns than higher-rated securities,
            they carry a high degree of credit risk and are considered predom-
            inantly speculative with respect to the issuer's continuing abil-
            ity to meet principal and interest payments. High yield securities
            may also be more susceptible to real or perceived adverse economic
            and competitive industry conditions and may be less liquid than
            higher-rated securities. Accordingly, Underlying Funds which in-
            vest a significant portion of their assets in high yield securi-
            ties (e.g., PIMCO High Yield and Emerging Markets Bond Funds) are
            subject to substantial credit risk, while Funds that invest in
            higher quality securities (e.g., PIMCO Money Market and Long-Term
            U.S. Government Funds) are subject to less credit risk.
 
            Investments in Companies with Small Market Capitalizations Certain
            Underlying Stock Funds (in particular, PIMCO Micro-Cap Growth,
            Small-Cap Value and Small-Cap Growth Funds) invest in common stock
            of companies with market capitalizations that are small compared
            to other publicly traded companies. Investments in smaller, less
            seasoned companies may present greater opportunities for growth
            and capital appreciation, but also involve greater risks than cus-
            tomarily are associated with larger, more established companies.
            These companies may have limited product lines, markets or finan-
            cial resources, or they may be dependent upon a limited management
            group. In addition, their securities may be traded in the over-
            the-counter market or on a regional exchange, or may otherwise
            have limited liquidity.
 
            Foreign Securities and Currencies Many Underlying Funds (in par-
            ticular, PIMCO International, International Growth, Structured
            Emerging Markets, Tax-Efficient Structured Emerging Markets,
            Global Bond, Foreign Bond and Emerging Markets Bond Funds) invest
            in securities of foreign issuers, securities traded principally in
            securities markets outside the United States and/or securities de-
            nominated in foreign currencies (together, "foreign securities").
               Investing in foreign securities involves special risks not typ-
            ically associated with investing in U.S. securities. These risks
            include: differences in accounting, auditing and financial report-
            ing standards; generally higher commission rates on foreign port-
            folio transactions; higher custodial costs; the possibility that
            foreign taxes will be charged on dividends and interest payable on
            foreign securities; the possibility of nationalization, expropria-
            tion or confiscatory
 
14  PIMCO Funds Asset Allocation Series


<PAGE>

 
            taxation; adverse changes in investment or exchange control regu-
            lations (which may include suspension of the ability to transfer
            currency from a country); political instability; the possibility
            of unfavorable foreign economic factors; and greater price vola-
            tility.
               Certain Underlying Funds (in particular, PIMCO Structured
            Emerging Markets, Tax-Efficient Structured Emerging Markets and
            Emerging Markets Bond Funds) may invest in the securities of is-
            suers based in countries with developing or "emerging market"
            economies. These securities may present market, credit, currency,
            liquidity, legal, political and other risks greater than, or in
            addition to, risks of investing in developed foreign countries.
            These risks include: high currency exchange rate fluctuations;
            greater social, economic and political uncertainty and instability
            (including the risk of war); more substantial governmental in-
            volvement in the economy; less governmental supervision and regu-
            lation of the securities markets and participants in those mar-
            kets; unavailability of currency hedging techniques in certain
            emerging market countries; the fact that companies in emerging
            market countries may be newly organized and may be smaller and
            less seasoned companies; the difference in, or lack of, auditing
            and financial reporting standards, which may result in unavaila-
            bility of material information about issuers; different clearance
            and settlement procedures, which may be unable to keep pace with
            the volume of securities transactions or otherwise make it diffi-
            cult to engage in such transactions; the risk that it may be more
            difficult to obtain and/or enforce legal judgments in foreign ju-
            risdictions; and significantly smaller market capitalizations of
            emerging market issuers.
               Underlying Funds that invest in fixed income securities denomi-
            nated in foreign currencies or in foreign currencies and related
            derivative instruments (in particular, PIMCO Global Bond, Foreign
            Bond and Emerging Markets Bond Funds) and Underlying Funds that
            invest in equity securities traded principally in foreign curren-
            cies, may be adversely affected by changes in foreign currency ex-
            change rates. Those rates may fluctuate significantly over short
            periods of time for a number of reasons, including the forces of
            supply and demand in the foreign exchange markets, actual or per-
            ceived changes in interest rates, and intervention (or the failure
            to intervene) by U.S. or foreign governments or central banks, or
            by currency controls or political developments in the U.S. or
            abroad. For example, significant uncertainty surrounds the pro-
            posed introduction of the euro (a common currency unit for the Eu-
            ropean Union) in January 1999 and its effect on the value of secu-
            rities denominated in local European currencies. For a more com-
            plete discussion of foreign currency risks (including those asso-
            ciated with the euro), please see "Investment Objectives and Poli-
            cies--Foreign Currencies" in the Statement of Additional Informa-
            tion.
 
            Derivative Instruments The Underlying Funds (with the exception of
            PIMCO Money Market Fund) may (but are not required to) utilize a
            number of derivative instruments for risk management purposes or
            as part of their investment strategies. These include futures con-
            tracts, options contracts, options on futures contracts, forward
            contracts and swap agreements. Generally, derivatives are finan-
            cial contracts whose value depends upon, or is derived from, the
            value of an underlying asset, reference rate or index, and may re-
            late to stocks, bonds, interest rates, currencies or currency ex-
            change rates, commodities, and related indexes. For a description
            of the various derivative instruments that may be utilized by the
            Underlying Funds, please see "Investment Objectives and Policies"
            in the Statement of Additional Information.
               The use of derivatives instruments involves risks different
            from, or greater than, the risks associated with investing di-
            rectly in securities and other more traditional investments. The
            following provides a general discussion of important risk factors
            relating to the use of derivative instruments by the Underlying
            Funds.
               Management Risk Derivative products are highly specialized in-
            struments that require investment techniques and risk analyses
            different from those associated with stocks and bonds. The use of
            a derivative requires an understanding not only of the underlying
            instrument but also of the derivative itself, without the benefit
            of observing the performance of the derivative under all possible
            market conditions.
               Credit Risk The use of a derivative involves the risk that a
            loss may be sustained as a result of the failure of another party
            to the contract (usually referred to as a "counterparty") to make
            required payments or otherwise comply with the contract's terms.
               Liquidity Risk Liquidity risk exists when a particular deriva-
            tive instrument is difficult to purchase or sell. If a derivative
            transaction is particularly large or if the relevant market is il-
            liquid (as is the case with many privately
 

                                                 November 1, 1998 Prospectus  15


<PAGE>

            negotiated derivatives), it may not be possible to initiate a
            transaction or liquidate a position at an advantageous time or
            price.
               Leverage Risk Because many derivatives have a leverage compo-
            nent, adverse changes in the value or level of the underlying as-
            set, reference rate or index can result in a loss substantially
            greater than the amount invested in the derivative itself. Certain
            derivatives have the potential for unlimited loss, regardless of
            the size of the initial investment. When an Underlying Fund uses
            derivatives for leverage, investments in that Fund will tend to be
            more volatile, resulting in larger gains or losses in response to
            market changes.
               Market and Other Risks Like most other investments, derivative
            instruments are subject to the general risk that the market value
            of the instrument will change in a way detrimental to the invest-
            or's interest. Other risks in using derivatives include the risk
            of mispricing or improper valuation of derivatives and the inabil-
            ity of derivatives to correlate perfectly with underlying assets,
            rates and indexes. Many derivatives, in particular privately nego-
            tiated derivatives, are complex and often valued subjectively. Im-
            proper valuations can result in increased cash payment require-
            ments to counterparties or a loss of value to an Underlying Fund.
            Also, the value of derivatives may not correlate perfectly, or at
            all, with the value of the assets, reference rates or indices they
            are designed to closely track. Consequently, an Underlying Fund's
            use of derivatives may not always be an effective means of, and
            sometimes could be counterproductive to, furthering the Fund's in-
            vestment objective or risk management strategy. In addition, suit-
            able derivative transactions may not be available in all circum-
            stances and there can be no assurance that an Underlying Fund will
            engage in such transactions at any given time or from time to
            time.
 
            A Note on PIMCO StocksPLUS Fund While the objective of PIMCO
            StocksPLUS Fund is to achieve a total return which exceeds the to-
            tal return performance of the S&P 500, it does so by investing
            substantially all of its assets in a combination of equity-based
            derivative instruments and a portfolio of fixed income securities.
            Consequently, the risks of investing in the Fund include the risks
            of derivatives and the risks generally associated with the Under-
            lying Bond Funds. To the extent that the Fund invests in S&P 500
            derivatives backed by a portfolio of fixed income securities, un-
            der certain conditions, generally in a market where the value of
            both S&P 500 derivatives and fixed income securities are declin-
            ing, the Fund may experience greater losses than would be the case
            if it were to invest directly in a portfolio of S&P 500 stocks.
 
            Certain Other Miscellaneous Investment Practices In addition to
            investing in the securities listed above under "Primary Invest-
            ments," some or all of the Underlying Funds may to varying
            extents: lend portfolio securities; enter into repurchase agree-
            ments and reverse repurchase agreements; purchase and sell securi-
            ties on a when-issued or delayed delivery basis; enter into for-
            ward commitments to purchase securities; purchase and write call
            and put options on securities and securities indexes; enter into
            futures contracts, options on futures contracts and swap agree-
            ments; invest in foreign securities; and buy or sell foreign cur-
            rencies and enter into forward foreign currency contracts. These
            and the other types of securities and investment techniques used
            by the Underlying Funds all have attendant risks. The Portfolios
            are indirectly subject to some or all of these risks to varying
            degrees because they invest all of their assets in the Underlying
            Funds. For further information concerning the investment practices
            of and risks associated with the Underlying Funds, please see "In-
            vestment Objectives and Policies" in the Statement of Additional
            Information and the Underlying Fund Prospectuses, which are incor-
            porated herein by reference and are available free of charge by
            telephoning the Distributor at 1-800-426-0107.
 
            Performance Information
 
            From time to time the Trust may make available certain information
            about the performance of the Class A, Class B and Class C shares
            of some or all of the Portfolios. Information about a Portfolio's
            performance is based on that Portfolio's record to a recent date
            and is not intended to indicate future performance. Performance
            information is computed separately for each Portfolio's Class A,
            Class B and Class C shares in accordance with the formulas de-
            scribed below. Because Class B and Class C shares bear the expense
            of the distribution fee attending the deferred sales

 
16  PIMCO Funds Asset Allocation Series


<PAGE>
 
            charge (Class B) and asset based sales charge (Class C) alterna-
            tives and certain other expenses, it is expected that, under nor-
            mal circumstances, the level of performance of a Portfolio's Class
            B and Class C shares will be lower than that of the Portfolio's
            Class A shares, although an investment in Class B or Class C
            shares is not reduced by the front-end sales charge generally ap-
            plicable to an investment in Class A shares.
               The total return of Class A, Class B and/or Class C shares of
            all Portfolios may be included in advertisements or other written
            material. When a Portfolio's total return is advertised with re-
            spect to its Class A, Class B and/or Class C shares, it will be
            calculated for the past year, the past five years, and the past
            ten years (or if the Portfolio has been offered for a period
            shorter than one, five or ten years, that period will be substi-
            tuted) since the establishment of the Portfolio, as more fully de-
            scribed in the Statement of Additional Information. Total return
            for each class is measured by comparing the value of an investment
            in the Portfolio at the beginning of the relevant period (in the
            case of Class A shares, giving effect to the maximum initial sales
            charge) to the redemption value of the investment in the Portfolio
            at the end of the period (assuming immediate reinvestment of any
            dividends or capital gains distributions at net asset value and
            giving effect to the deduction of the maximum CDSC which would be
            payable). Total return may be advertised using alternative methods
            that reflect all elements of return.
               Quotations of yield for a Portfolio or class will be based on
            the investment income per share (as defined by the Securities and
            Exchange Commission) during a particular 30-day (or one-month) pe-
            riod (including dividends and interest), less expenses accrued
            during the period ("net investment income"), and will be computed
            by dividing net investment income by the maximum public offering
            price per share on the last day of the period.
               The Portfolios may also provide current distribution informa-
            tion to their shareholders in shareholder reports or other share-
            holder communications, or in certain types of sales literature
            provided to prospective investors. Current distribution informa-
            tion for a particular class of a Portfolio will be based on dis-
            tributions for a specified period (i.e., total dividends from net
            investment income), divided by the relevant class net asset value
            per share on the last day of the period and annualized. Current
            distribution rates differ from standardized yield rates in that
            they represent what a class of a Portfolio has declared and paid
            to shareholders as of the end of a specified period rather than
            the Portfolio's actual net investment income for that period.
               The Adviser may also report to shareholders or to the public in
            advertisements concerning its performance as adviser to clients
            other than the Portfolios, and on its comparative performance or
            standing in relation to other money managers. Such comparative in-
            formation may be compiled or provided by independent ratings serv-
            ices or by news organizations. Any performance information,
            whether related to the Portfolios, the Adviser or an advisory af-
            filiate of the Adviser, should be considered in light of the Port-
            folios' investment objectives and policies, characteristics and
            quality of the Portfolios' investments, and the market conditions
            during the time period indicated, and should not be considered to
            be representative of what may be achieved by the Portfolios in the
            future.
               Investment results of the Portfolios will fluctuate over time,
            and any representation of the Portfolios' total return or yield
            for any prior period should not be considered as a representation
            of what an investor's total return or yield may be in any future
            period.
 
            How to Buy Shares
 
            Class A, Class B and Class C shares of each Portfolio are continu-
            ously offered through the Trust's principal underwriter, PIMCO
            Funds Distributors LLC (the "Distributor"), and through other
            firms which have dealer agreements with the Distributor ("partici-
            pating brokers") or which have agreed to act as introducing bro-
            kers for the Distributor ("introducing brokers").
               There are two ways to purchase Class A, Class B or Class C
            shares: either 1) through your dealer or broker which has a dealer
            agreement with the Distributor; or 2) directly by mailing a PIMCO
            Funds account application (an "account application") with payment,
            as described below under the heading Direct Investment, to the
            Distributor (if no dealer is named in the account application, the
            Distributor may act as dealer).
 

                                                 November 1, 1998 Prospectus  17

<PAGE>
 
 
               Each Portfolio currently offers and sells three classes of
            shares in this Prospectus (Class A, Class B and Class C). Shares
            may be purchased at a price equal to their net asset value per
            share next determined after receipt of an order, plus a sales
            charge which, at the election of the purchaser, may be imposed ei-
            ther (i) at the time of the purchase in the case of Class A shares
            (the "initial sales charge alternative"), (ii) on a contingent de-
            ferred basis in the case of Class B shares (the "deferred sales
            charge alternative"), or (iii) by the deduction of an ongoing as-
            set based sales charge in the case of Class C shares (the "asset
            based sales charge alternative"). In certain circumstances, Class
            A and Class C shares are also subject to a CDSC. See "Alternative
            Purchase Arrangements." Purchase payments for Class B and Class C
            shares are fully invested at the net asset value next determined
            after acceptance of the trade. Purchase payments for Class A
            shares, less the applicable sales charge, are invested at the net
            asset value next determined after acceptance of the trade.
               All purchase orders received by the Distributor prior to the
            close of regular trading (normally 4:00 p.m., Eastern time) on the
            New York Stock Exchange (the "Exchange"), on a regular business
            day, are processed at that day's offering price. However, orders
            received by the Distributor from dealers or brokers after the of-
            fering price is determined that day will receive such offering
            price if the orders were received by the dealer or broker from its
            customer prior to such determination and were transmitted to and
            received by the Distributor prior to its close of business that
            day (normally 5:00 p.m., Eastern time) or, in the case of certain
            retirement plans, received by the Distributor prior to 9:30 a.m.,
            Eastern time on the next business day. Purchase orders received on
            other than a regular business day will be executed on the next
            succeeding regular business day. The Distributor, in its sole dis-
            cretion, may accept or reject any order for purchase of Portfolio
            shares. The sale of shares will be suspended during any period in
            which the Exchange is closed for other than weekends or holidays,
            or if permitted by the rules of the Securities and Exchange Com-
            mission, when trading on the Exchange is restricted or during an
            emergency which makes it impracticable for the Portfolios to dis-
            pose of their securities or to determine fairly the value of their
            net assets, or during any other period as permitted by the Securi-
            ties and Exchange Commission for the protection of investors.
               Except for purchases through the PIMCO Funds Auto-Invest plan,
            the PIMCO Funds Auto-Exchange plan, investments pursuant to the
            Uniform Gifts to Minors Act, and tax-qualified and wrap programs
            referred to below under "Tax-Qualified Retirement Plans" and
            "Sales at Net Asset Value," the minimum initial investment in
            Class A, Class B or Class C shares of any Portfolio or other se-
            ries of the Trust or any series of PIMCO Funds: Pacific Investment
            Management Series is $2,500, and the minimum additional investment
            is $100 per Portfolio. For information about dealer commissions,
            see "Alternative Purchase Arrangements" below. Persons selling
            Portfolio shares may receive different compensation for selling
            Class A, Class B or Class C shares. Normally, Portfolio shares
            purchased through participating brokers are held in the investor's
            account with that broker. No share certificates will be issued un-
            less specifically requested in writing by an investor or broker-
            dealer.
 
 
Direct      Investors who wish to invest in Class A, Class B or Class C shares
Investment  of the Portfolios directly, rather than through a participating
            broker, may do so by opening an account with the Distributor. To
            open an account, an investor should complete the account applica-
            tion. All shareholders who open direct accounts with the Distribu-
            tor will receive from the Distributor individual confirmations of
            each purchase, redemption, dividend reinvestment, exchange or
            transfer of Trust shares, including the total number of Trust
            shares owned as of the confirmation date, except that purchases
            which result from the reinvestment of daily-accrued dividends
            and/or distributions will be confirmed once each calendar quarter.
            See "Distributions" below. Information regarding direct investment
            or any other features or plans offered by the Trust may be ob-
            tained by calling the Distributor at 1-800-426-0107 or by calling
            your broker.
 
 
Purchase by
Mail        Investors who wish to invest directly may send a check payable to
            PIMCO Funds Distributors LLC, along with a completed application
            form to:
 
               PIMCO Funds Distributors LLC
               P.O. Box 5866
                  
               Providence, RI 02940-0926      

 
18   PIMCO Funds Asset Allocation Series

<PAGE>
 
 
               Purchases are accepted subject to collection of checks at full
            value and conversion into federal funds. Payment by a check drawn
            on any member of the Federal Reserve System can normally be con-
            verted into federal funds within two business days after receipt
            of the check. Checks drawn on a non-member bank may take up to 15
            days to convert into federal funds. In all cases, the purchase
            price is based on the net asset value next determined after the
            purchase order and check are accepted, even though the check may
            not yet have been converted into federal funds.
 
 
Subsequent  Subsequent purchases of Class A, Class B or Class C shares can be
Purchases   made as indicated above by mailing a check with a letter describ-
of          ing the investment or with the additional investment portion of a
Shares      confirmation statement. Except for subsequent purchases through
            the PIMCO Funds Auto-Invest plan, the PIMCO Funds Auto-Exchange
            plan, tax-qualified programs and PIMCO Funds Fund Link referred to
            below, and except during periods when an Automatic Withdrawal Plan
            is in effect, the minimum subsequent purchase is $100 in any Port-
            folio. All payments should be made payable to PIMCO Funds Distrib-
            utors LLC and should clearly indicate the shareholder's account
            number. Checks should be mailed to the address above under "Pur-
            chase by Mail."
 
 
Tax-           
Qualified   The Distributor makes available retirement plan services and docu-
Retirement  ments for Individual Retirement Accounts (IRAs), including Roth
Plans       IRAs, for which Boston Safe Deposit & Trust Company (see "Change
            in Transfer Agent" below) serves as trustee and for IRA Accounts
            established with Form 5305-SIMPLE under the Internal Revenue Code
            of 1986, as amended (the "Code"). These accounts include Simpli-
            fied Employee Pension Plan (SEP) and Salary Reduction Simplified
            Employee Pension Plan (SAR/SEP) IRA accounts and prototype docu-
            ments. In addition, prototype documents are available for estab-
            lishing 403(b)(7) custodial accounts with Boston Safe Deposit &
            Trust Company as custodian. This type of plan is available to em-
            ployees of certain non-profit organizations.     
               The Distributor also makes available prototype documents for
            establishing Money Purchase and/or Profit Sharing plans and 401(k)
            Retirement Savings Plans. These prototype plans require certain
            minimum per participant account sizes and certain minimum aggre-
            gate investments in the Trust, but are not subject to the small
            account fees described below that will apply to other plans. In-
            vestors should call the Distributor at 1-800-426-0107 for further
            information about these plans and should consult with their own
            tax advisers before establishing any retirement plan. Investors
            who maintain their accounts with participating brokers should con-
            sult their broker about similar types of accounts that may be of-
            fered through the broker. The minimum initial investment for all
            tax-qualified plans (except for employer-sponsored plans, SIMPLE
            IRAs, SEPs and SAR/SEPs) is $1,000 per Portfolio and the minimum
            subsequent investment is $100. The minimum initial investment for
            employer-sponsored plans, SIMPLE IRAs, SEPs and SAR/SEPs and the
            minimum subsequent investment per Portfolio for all such plans is
            $50.
 
 
PIMCO Funds The PIMCO Funds Auto-Invest plan provides for periodic investments
Auto-Invest into the shareholder's account with the Trust by means of auto-
            matic transfers of a designated amount from the shareholder's bank
            account. The minimum investment for eligibility in the PIMCO Funds
            Auto-Invest plan is $1,000 per Portfolio. Investments may be made
            monthly or quarterly, and may be in any amount subject to a mini-
            mum of $50 per month for each Portfolio in which shares are pur-
            chased through the plan. Further information regarding the PIMCO
            Funds Auto-Invest plan is available from the Distributor or par-
            ticipating brokers. You may enroll by completing the appropriate
            section on the account application, or you may obtain an Auto-In-
            vest application by calling the Distributor or your broker.
 
 
PIMCO Funds
Auto-Exchange
            The PIMCO Funds Auto-Exchange plan establishes regular, periodic
            exchanges from one Portfolio to another Portfolio or other series
            of the Trust or PIMCO Funds: Pacific Investment Management Series
            which offers Class A, Class B or Class C shares. The plan provides
            for regular investments into a shareholder's account in a specific
            Portfolio by means of automatic exchanges of a designated amount
            from an account for another Portfolio or other series of the same
            class of shares and with identical account registration.
               Exchanges may be made monthly or quarterly, and may be in any
            amount subject to a minimum of $1,000 to open a new Portfolio ac-
            count and of $50 for any existing Portfolio account for which
            shares are purchased through the
 
                                              November 1, 1998 Prospectus  19
<PAGE>
 
            plan. Further information regarding the PIMCO Funds Auto-Exchange
            plan is available from the Distributor at 1-800-426-0107 or par-
            ticipating brokers. You may enroll by completing an application
            which may be obtained from the Distributor or by telephone request
            at 1-800-426-0107. For more information on exchanges, see "Ex-
            change Privilege."
 
 
PIMCO Funds    
Fund Link   PIMCO Funds Fund Link ("Fund Link") connects your Portfolio ac-
            count with a bank account. Fund Link may be used for subsequent
            purchases and for redemptions and other transactions described un-
            der "How to Redeem." Purchase transactions are effected by elec-
            tronic funds transfers from the shareholder's account at a U.S.
            bank or other financial institution that is an Automated Clearing
            House ("ACH") member. Investors may use Fund Link to make subse-
            quent purchases of shares in amounts from $50 to $10,000. To ini-
            tiate such purchases, call 1-800-426-0107. All such calls will be
            recorded. Fund Link is normally established within 45 days of re-
            ceipt of a Fund Link application by First Data Investor Services
            Group, Inc. (the "Transfer Agent"). The minimum investment by Fund
            Link is $50 per Portfolio. Shares will be purchased on the regular
            business day the Distributor receives the funds through the ACH
            system, provided the funds are received before the close of regu-
            lar trading on the Exchange. If the funds are received after the
            close of regular trading, the shares will be purchased on the next
            regular business day.     
               Fund Link privileges must be requested on the account applica-
            tion. To establish Fund Link on an existing account, complete a
            Fund Link application, which is available from the Distributor or
            your broker, with signatures guaranteed from all shareholders of
            record for the account. See "Signature Guarantee" below. Such
            privileges apply to each shareholder of record for the account un-
            less and until the Distributor receives written instructions from
            a shareholder of record canceling such privileges. Changes of bank
            account information must be made by completing a new Fund Link ap-
            plication signed by all owners of record of the account, with all
            signatures guaranteed. The Distributor, the Transfer Agent and the
            Trust may rely on any telephone instructions believed to be genu-
            ine and will not be responsible to shareholders for any damage,
            loss or expenses arising out of such instructions. The Trust re-
            serves the right to amend, suspend or discontinue Fund Link privi-
            leges at any time without prior notice. Fund Link does not apply
            to shares held in broker "street name" accounts.
 
 
Signature   When a signature guarantee is called for, the shareholder should
Guarantee   have "Signature Guaranteed" stamped under his signature and guar-
            anteed by any of the following entities: U.S. banks, foreign banks
            having a U.S. correspondent bank, credit unions, savings associa-
            tions, U.S. registered dealers and brokers, municipal securities
            dealers and brokers, government securities dealers and brokers,
            national securities exchanges, registered securities associations
            and clearing agencies (each an "Eligible Guarantor Institution").
            The Distributor reserves the right to reject any signature guaran-
            tee pursuant to its written signature guarantee standards or pro-
            cedures, which may be revised in the future to permit it to reject
            signature guarantees from Eligible Guarantor Institutions that do
            not, based on credit guidelines, satisfy such written standards or
            procedures. The Trust may change the signature guarantee require-
            ments from time to time upon notice to shareholders, which may be
            given by means of a new or supplemented Prospectus.
 
 
Account     Changes in registration or account privileges may be made in writ-
Registrationing to the Transfer Agent. Signature guarantees may be required.
Changes     See "Signature Guarantee" above. All correspondence must include
            the account number and must be sent to:
 
               PIMCO Funds Distributors LLC
               P.O. Box 5866
                  
               Providence, RI 02940-0926     
 
 
Small
Account     Because of the disproportionately high costs of servicing accounts
Fee         with low balances, a fee at an annual rate of $16, paid to PIMCO
            Advisors, the Portfolios' administrator, will automatically be de-
            ducted from direct accounts with balances falling below a minimum
            level. The valuation of accounts and the deduction are expected to
            take place during the last five business days of each calendar
            quarter. The fee will be deducted in quarterly installments from
 
20  PIMCO Funds Asset Allocation Series

<PAGE>

            accounts with balances below $2,500 except for Uniform Gift to Mi-
            nors, IRA, Roth IRA and Auto-Invest accounts, for which the limit
            is $1,000. Effective April 1, 1999, except for prototype plans de-
            scribed above, the fee will apply to employer-sponsored retirement
            plan accounts, Money Purchase and/or Profit Sharing plans, 401(k)
            plans, 403(b)(7) custodial accounts, SIMPLE IRAs, SEPs and
            SAR/SEPs. (A separate custodial fee may apply to IRAs, Roth IRAs
            and other retirement accounts.) No fee will be charged on any ac-
            count of a shareholder if the aggregate value of all of the share-
            holder's accounts is at least $50,000. No small account fee will
            be charged to employee and employee-related accounts of PIMCO Ad-
            visors and/or its affiliates.
 
 
Minimum     Due to the relatively high cost to the Portfolios of maintaining
Account     small accounts, you are asked to maintain an account balance of at
Size        least the amount necessary to open the type of account involved.
            If your balance is below such minimum for three months or longer,
            the Portfolios' administrator shall have the right (except in the
            case of employer-sponsored retirement accounts) to close your ac-
            count after giving you 60 days in which to increase your balance.
            Your account will not be liquidated if the reduction in size is
            due solely to market decline in the value of your Portfolio shares
            or if the aggregate value of all your accounts in PIMCO Funds ex-
            ceeds $50,000.
 
            Alternative Purchase Arrangements
 
            The Trust offers investors three classes of shares in this Pro-
            spectus (Class A, Class B and Class C) which bear sales charges in
            different forms and amounts and which bear different levels of ex-
            penses. The alternative purchase arrangements offered in this Pro-
            spectus are designed to enable a retail investor to choose the
            method of purchasing Portfolio shares that is most beneficial to
            the investor based on all factors to be considered, which include:
            the amount and intended length of the investment; the particular
            Portfolio; and whether the investor intends to exchange shares for
            shares of other PIMCO Funds. Generally, when making an investment
            decision, investors should consider the anticipated life of an in-
            tended investment in the Portfolios, the accumulated distribution
            and servicing fees plus CDSCs on Class B or Class C shares, the
            initial sales charge plus accumulated servicing fees on Class A
            shares (plus a CDSC in certain circumstances), the possibility
            that the anticipated higher return on Class A shares due to the
            lower ongoing charges will offset the initial sales charge paid on
            such shares, the automatic conversion of Class B shares to Class A
            shares and the difference in the CDSCs applicable to Class A,
            Class B and Class C shares.
 
            Class A The initial sales charge alternative (Class A) might be
            preferred by investors purchasing shares of sufficient aggregate
            value to qualify for reductions in the initial sales charge appli-
            cable to such shares. Similar reductions are not available on the
            contingent deferred sales charge alternative (Class B) or the as-
            set based sales charge alternative (Class C). Class A shares are
            subject to a servicing fee but are not subject to a distribution
            fee and, accordingly, such shares are expected to pay correspond-
            ingly higher dividends on a per share basis. However, because ini-
            tial sales charges are deducted at the time of purchase, not all
            of the purchase payment for Class A shares is invested initially.
            Class B and Class C shares might be preferable to investors who
            wish to have all purchase payments invested initially, although
            remaining subject to higher distribution and servicing fees and,
            for certain periods, being subject to a CDSC. An investor who
            qualifies for an elimination of the Class A initial sales charge
            should also consider whether he or she anticipates redeeming
            shares in a time period which will subject such shares to a CDSC
            as described below. See "Initial Sales Charge Alternative--Class A
            Shares--Class A Deferred Sales Charge" below.
 
            Class B Class B shares might be preferred by investors who intend
            to invest in the Portfolios for longer periods and who do not in-
            tend to purchase shares of sufficient aggregate value to qualify
            for sales charge reductions applicable to Class A shares. Both
            Class B and Class C shares can be purchased at net asset value
            without an initial sales charge. However, unlike Class C shares,
            Class B shares convert into Class A shares after the shares have
            been held for seven years. After the conversion takes place, the
            shares will no longer be subject to a CDSC, and will be subject to
            the servicing fees charged for Class A shares which are lower than
            the distribution and servicing fees charged on either
 
                                               November 1, 1998 Prospectus   21


<PAGE>
 
            Class B or Class C shares. See "Deferred Sales Charge Alterna-
            tive--Class B Shares" below. Class B shares are not available for
            purchase by employer sponsored retirement plans.
 
            Class C Class C shares might be preferred by investors who intend
            to purchase shares which are not of sufficient aggregate value to
            qualify for Class A sales charges of 1% or less and who wish to
            have all purchase payments invested initially. Class C shares are
            preferable to Class B shares for investors who intend to maintain
            their investment for intermediate periods and therefore may also
            be preferable for investors who are unsure of the intended length
            of their investment. Unlike Class B shares, Class C shares are not
            subject to a CDSC after they have been held for one year and are
            subject to only a 1% CDSC during the first year. However, because
            Class C shares do not convert into Class A shares, Class B shares
            are preferable to Class C shares for investors who intend to main-
            tain their investment in the Portfolios for long periods. See "As-
            set Based Sales Charge Alternative--Class C Shares" below.
               In determining which class of shares to purchase, an investor
            should always consider whether any waiver or reduction of a sales
            charge or a CDSC is available. See generally "Initial Sales Charge
            Alternative--Class A Shares" and "Waiver of Contingent Deferred
            Sales Charges" below.
               The maximum single purchase of Class B shares of the Portfolios
            and other series of the Trust and PIMCO Funds: Pacific Investment
            Management Series accepted is $249,999. The maximum single pur-
            chase of Class C shares of the Portfolios and other series of the
            Trust and PIMCO Funds: Pacific Investment Management Series ac-
            cepted is $999,999. The Portfolios may refuse any order to pur-
            chase shares.
               For a description of the Distribution and Servicing Plans and
            distribution and servicing fees payable thereunder with respect to
            Class A, Class B and Class C shares, see "Distributor and Distri-
            bution and Servicing Plans" below.
 
            Waiver of Contingent Deferred Sales Charges The CDSC applicable to
            Class A and Class C shares is currently waived for (i) any partial
            or complete redemption in connection with (a) required minimum
            distributions to IRA account owners or beneficiaries who are age
            70 1/2 or older or (b) distributions to participants in employer-
            sponsored retirement plans upon attaining age 59 1/2 or on account
            of death or disability;* (ii) any partial or complete redemption
            in connection with a qualifying loan or hardship withdrawal from
            an employer sponsored retirement plan; (iii) any
            complete redemption in connection with a distribution from a qual-
            ified employer retirement plan in connection with termination of
            employment or termination of the employer's plan and the transfer
            to another employer's plan or to an IRA (with the exception of a
            Roth IRA); (iv) any partial or complete redemption following death
            or disability (as defined in the Code) of a shareholder (including
            one who owns the shares as joint tenant with his or her spouse)
            from an account in which the deceased or disabled is named, pro-
            vided the redemption is requested within one year of the death or
            initial determination of disability; (v) any redemption resulting
            from a return of an excess contribution to a qualified employer
            retirement plan or an IRA (with the exception of a Roth IRA); (vi)
            up to 10% per year of the value of an account which (a) has the
            value of at least $10,000 at the start of such year and (b) is
            subject to an Automatic Withdrawal Plan; (vii) redemptions by
            Trustees, officers and employees of the Trust, and by directors,
            officers and employees of the Distributor and the Adviser; (viii)
            redemptions effected pursuant to a Portfolio's right to involun-
            tarily redeem a shareholder's account if the aggregate net asset
            value of shares held in such shareholder's account is less than a
            minimum account size specified in such Portfolio's prospectus;
            (ix) involuntary redemptions caused by operation of law; (x) re-
            demption of shares of any Portfolio that is combined with another
            Portfolio or other series of the Trust or another investment com-
            pany, or a personal holding company by virtue of a merger, acqui-
            sition or other similar reorganization transaction; (xi) redemp-
            tions by a shareholder who is a participant making periodic
            ------
            * This subsection (i) shall read as follows until December 31,
              1998: "(i) any partial or complete redemption in connection with
              any of the following distributions from a retirement plan,
              including a 403(b)(7) custodial account or an IRA (with the
              exception of a Roth IRA), that qualify for exemption from the
              additional tax on early distributions under Section 72(t) of the
              Code: (a) upon attaining age 59 1/2, (b) on account of death or
              disability, (c) as part of a series of substantially equal
              periodic payments, (d) in the case of an IRA (with the exception
              of a Roth IRA), attributable to qualified higher education
              expenses or to qualified first-time home-buyer expenses or (e)
              in the case of a retirement plan other than an IRA, upon
              separation from service after attaining age 55;"
 

22   PIMCO Funds Asset Allocation Series


<PAGE>
 
            purchases of not less than $50 through certain employer sponsored
            savings plans that are clients of a broker-dealer with which the
            Distributor has an agreement with respect to such purchases; 
            (xii) redemptions effected by trustees or other fiduciaries who
            have purchased shares for employer sponsored plans, the trustee,
            admin-istrator, fiduciary, broker, trust company or registered
            invest-ment adviser for which has an agreement with the Distributor
            with respect to such purchases; or (xiii) redemptions in connection
            with IRA accounts established with Form 5305-SIMPLE under the Code
            for which the Trust is the designated financial institution. The
            CDSC applicable to Class B shares is currently waived for any
            partial or complete redemption in each of the following cases: 
            (a) in connection with required minimum distributions to IRA ac-
            count owners or to plan participants or beneficiaries who are age
            70 1/2 or older; (b) following death or disability (as defined in
            the Code) of a shareholder (including one who owns the shares as
            joint tenant with his or her spouse) from an account in which the
            deceased or disabled is named, provided the redemption is re-
            quested within one year of the death or initial determination of
            disability; and (c) up to 10% per year of the value of an account
            which (i) has a value of at least $100,000 at the start of such
            year and (ii) is subject to an Automatic Withdrawal Plan. See "How
            to Redeem--Automatic Withdrawal Plan." The Distributor may require
            documentation prior to waiver of the CDSC for any class, including
            distribution letters, certifica-tion by plan administrators,
            applicable tax forms, death certifi-cates, physicians'
            certificates, etc.

                                               November 1, 1998 Prospectus   23


<PAGE>
 
Initial Sales Charge
Alternative --
Class A Shares
            Class A shares are sold at a public offering price equal to their
            net asset value per share plus a sales charge, as set forth below.
            As indicated below under "Class A Deferred Sales Charge," certain
            investors that purchase $1,000,000 or more of any Portfolio's
            Class A shares (and thus pay no initial sales charge) may be sub-
            ject to a 1% CDSC if they redeem such shares during the first 18
            months after their purchase.
 
 
           90/10 Portfolio and 60/40 Portfolio
<TABLE>
<CAPTION>
                                                               Discount or
                                Sales Charge as Sales Charge   Commission to
           Amount of            % of Net        as % of Public Dealers as % of
           Purchase             Amount Invested Offering Price Public Offering Price
           -------------------------------------------------------------------------
           <S>                  <C>             <C>            <C>
           $0 - $49,999         5.82%           5.50%          4.75%
           -------------------------------------------------------------------------
           $50,000 - $99,999    4.71%           4.50%          4.00%
           -------------------------------------------------------------------------
           $100,000 - $249,999  3.63%           3.50%          3.00%
           -------------------------------------------------------------------------
           $250,000 - $499,999  2.56%           2.50%          2.00%
           -------------------------------------------------------------------------
           $500,000 - $999,999  2.04%           2.00%          1.75%
           -------------------------------------------------------------------------
           $1,000,000+          0.00%(/1/)      0.00%(/1/)     0.75%(/2/)
</TABLE>
 
           30/70 Portfolio
<TABLE>
<CAPTION>
                                                               Discount or
                                Sales Charge as Sales Charge   Commission to
           Amount of            % of Net        as % of Public Dealers as % of
           Purchase             Amount Invested Offering Price Public Offering Price
           -------------------------------------------------------------------------
           <S>                  <C>             <C>            <C>
           $0 - $49,999         4.71%           4.50%          4.00%
           -------------------------------------------------------------------------
           $50,000 - $99,999    4.17%           4.00%          3.50%
           -------------------------------------------------------------------------
           $100,000 - $249,999  3.63%           3.50%          3.00%
           -------------------------------------------------------------------------
           $250,000 - $499,999  2.56%           2.50%          2.00%
           -------------------------------------------------------------------------
           $500,000 - $999,999  2.04%           2.00%          1.75%
           -------------------------------------------------------------------------
           $1,000,000+          0.00%(/1/)      0.00%(/1/)     0.50%(/2/)
</TABLE>
 
            1. As shown, investors that purchase more than $1,000,000 of any
            Portfolio's Class A shares will not pay any initial sales charge
            on such purchase. However, purchasers of $1,000,000 or more of
            Class A shares (other than those purchasers described below under
            "Sales at Net Asset Value" where no commission is paid) will be
            subject to a CDSC of 1% if such shares are redeemed during the
            first 18 months after such shares are purchased unless such pur-
            chaser is eligible for a waiver of the CDSC as described under
            "Waiver of Contingent Deferred Sales Charges" above. See "Class A
            Deferred Sales Charge" below.
            2. The Distributor will pay a commission to dealers who sell
            amounts of $1,000,000 or more of Class A shares (or who sell Class
            A shares at net asset value to certain employer-sponsored plans as
            outlined in "Sales at Net Asset Value" below) of the 90/10 Portfo-
            lio and the 60/40 Portfolio according to the following schedule:
            0.75% of the first $2,000,000, 0.50% of amounts from $2,000,001 to
            $5,000,000, and 0.25% of amounts over $5,000,000; and of the 30/70
            Portfolio according to the following schedule: 0.50% of the first
            $2,000,000, and 0.25% of amounts over $2,000,000.
 
               Each Portfolio receives the entire net asset value of its Class
            A shares purchased by investors. The Distributor receives the
            sales charge shown above less any applicable discount or commis-
            sion "reallowed" to participating brokers in the amounts indicated
            in the table above. The Distributor may, however, elect to reallow
            the entire sales charge to participating brokers for all sales
            with respect to which orders are placed with the Distributor for
            any particular Portfolio during a particular period. During such
            periods as may from time to time be designated by the Distributor,
            the Distributor will pay an additional amount of up to 0.50% of
            the purchase price on sales of Class A shares of all or selected
            Portfolios purchased to each participating broker which obtains
            purchase orders in amounts exceeding thresholds established from
            time to time by the Distributor. From time to time, the Distribu-
            tor, its parent and/or its affiliates may make additional payments
            to one or more participating brokers based upon factors such as
            the level of sales or the length of time clients' assets have re-
            mained in the Trust.
               Shares issued pursuant to the automatic reinvestment of income
            dividends or capital gains distributions are issued at net asset
            value and are not subject to any sales charges.

 
24  PIMCO Funds Asset Allocation Series


<PAGE>

               Under the circumstances described below, investors may be enti-
            tled to pay reduced sales charges for Class A shares.
 
            Combined Purchase Privilege Investors may qualify for a reduced
            sales charge by combining purchases of the Class A shares of one
            or more Portfolios or other series of the Trust or PIMCO Funds:
            Pacific Investment Management Series which offer Class A shares
            (together, "eligible PIMCO Funds") into a "single purchase," if
            the resulting purchase totals at least $50,000. The term "single
            purchase" refers to:
                (i) a single purchase by an individual, or concurrent pur-
                    chases, which in the aggregate are at least equal to the
                    prescribed amounts, by an individual, his or her spouse
                    and their children under the age of 21 years purchasing
                    Class A shares of the eligible PIMCO Funds for his, her or
                    their own account;
                (ii) a single purchase by a trustee or other fiduciary pur-
                     chasing shares for a single trust, estate or fiduciary
                     account although more than one beneficiary is involved;
                     or
                (iii) a single purchase for the employee benefit plans of a
                      single employer.
               For further information, call the Distributor at 1-800-426-0107
            or your broker.
 
            Cumulative Quantity Discount (Right of Accumulation) A purchase of
            additional Class A shares of any eligible PIMCO Fund may qualify
            for a Cumulative Quantity Discount at the rate applicable to the
            discount bracket obtained by adding:
                (i) the investor's current purchase;
                (ii) the value (at the close of business on the day of the
                     current purchase) of all Class A shares of any eligible
                     PIMCO Fund held by the investor computed at the maximum
                     offering price; and
                (iii) the value of all shares described in paragraph (ii)
                      owned by another shareholder eligible to be combined
                      with the investor's purchase into a "single purchase" as
                      defined above under "Combined Purchase Privilege."
               For example, if you owned Class A shares of the 90/10 Portfolio
            worth $25,000 at the current maximum offering price and wished to
            purchase Class A shares of the 60/40 Portfolio worth an additional
            $30,000, the sales charge for the $30,000 purchase would be at the
            4.50% rate applicable to a single $55,000 purchase of shares of
            the 90/10 Portfolio, rather than the 5.50% rate.
 
            Letter of Intent An investor may also obtain a reduced sales
            charge by means of a written Letter of Intent, which expresses an
            intention to invest not less than $50,000 within a period of 13
            months in Class A shares of any eligible PIMCO Fund(s). Each pur-
            chase of shares under a Letter of Intent will be made at the pub-
            lic offering price or prices applicable at the time of such pur-
            chase to a single transaction of the dollar amount indicated in
            the Letter. At the investor's option, a Letter of Intent may in-
            clude purchases of Class A shares of any eligible PIMCO Fund made
            not more than 90 days prior to the date the Letter of Intent is
            signed; however, the 13-month period during which the Letter is in
            effect will begin on the date of the earliest purchase to be in-
            cluded and the sales charge on any purchases prior to the Letter
            will not be adjusted.
               Investors qualifying for the Combined Purchase Privilege de-
            scribed above may purchase shares of the eligible PIMCO Funds un-
            der a single Letter of Intent. For example, if at the time you
            sign a Letter of Intent to invest at least $100,000 in Class A
            shares of any Portfolio, you and your spouse each purchase Class A
            shares of the 90/10 Portfolio worth $30,000 (for a total of
            $60,000), it will only be necessary to invest a total of $40,000
            during the following 13 months in Class A shares of any of the
            Portfolios to qualify for the 3.50% sales charge on the total
            amount being invested (the sales charge applicable to an invest-
            ment of $100,000 in any of the Portfolios).
               A Letter of Intent is not a binding obligation to purchase the
            full amount indicated. The minimum initial investment under a Let-
            ter of Intent is 5% of such amount. Shares purchased with the
            first 5% of such amount will be held in escrow (while remaining
            registered in your name) to secure payment of the higher sales
            charge applicable to the shares actually purchased in the event
            the full intended amount is not purchased. If the full amount in-
            dicated is not purchased, a sufficient amount of such escrowed
            shares will be involuntarily redeemed to pay the additional sales
            charge applicable to the amount actually purchased, if necessary.
            Dividends on escrowed shares, whether paid in cash
 

                                                 November 1, 1998 Prospectus  25


<PAGE>

            or reinvested in additional eligible PIMCO Fund shares, are not
            subject to escrow. When the full amount indicated has been pur-
            chased, the escrow will be released. If you wish to enter into a
            Letter of Intent in conjunction with your initial investment in
            Class A shares of a Portfolio, you should complete the appropriate
            portion of the account application. If you are a current Class A
            shareholder desiring to do so you may obtain a form of Letter of
            Intent by contacting the Distributor at 1-800-426-0107 or any bro-
            ker participating in this program.
 
            Reinstatement Privilege A Class A shareholder who has caused any
            or all of his shares to be redeemed may reinvest all or any por-
            tion of the redemption proceeds in Class A shares of any eligible
            PIMCO Fund at net asset value without any sales charge, provided
            that such reinvestment is made within 120 calendar days after the
            redemption or repurchase date. Shares are sold to a reinvesting
            shareholder at the net asset value next determined. See "How Net
            Asset Value is Determined." A reinstatement pursuant to this priv-
            ilege will not cancel the redemption transaction and, consequent-
            ly, any gain or loss so realized may be recognized for federal tax
            purposes except that no loss may be recognized to the extent that
            the proceeds are reinvested in shares of the same Portfolio within
            30 days. The reinstatement privilege may be utilized by a share-
            holder only once, irrespective of the number of shares redeemed,
            except that the privilege may be utilized without limit in connec-
            tion with transactions whose sole purpose is to transfer a share-
            holder's interest in a Portfolio to his Individual Retirement Ac-
            count or other qualified retirement plan account. An investor may
            exercise the reinstatement privilege by written request sent to
            the Distributor or to the investor's broker.
 
            Sales at Net Asset Value Each Portfolio may sell its Class A
            shares at net asset value without a sales charge to (a) current or
            retired officers, trustees, directors or employees of the Trust,
            the Adviser or the Distributor, a parent, brother or sister of any
            such officer, trustee, director or employee or a spouse or child
            of any of the foregoing persons, or any trust, profit sharing or
            pension plan for the benefit of any such person and to any other
            person if the Distributor anticipates that there will be minimal
            sales expenses associated with the sale, (b) current or retired
            trustees of PIMCO Funds: Pacific Investment Management Series, (c)
            current registered representatives and other full-time employees
            of participating brokers or such persons' spouses or for trust or
            custodial accounts for their minor children, (d) trustees or other
            fiduciaries purchasing shares for certain plans sponsored by em-
            ployers, professional organizations or associations or charitable
            organizations, the trustee, administrator, fiduciary, broker,
            trust company or registered investment adviser for which has an
            agreement with the Distributor with respect to such purchases (in-
            cluding provisions related to minimum levels of investment in the
            Trust), and to participants in such plans and their spouses pur-
            chasing for their account(s) or IRAs (with the exception of Roth
            IRAs), (e) participants investing through accounts known as "wrap
            accounts" established with brokers or dealers approved by the Dis-
            tributor where such brokers or dealers are paid a single, inclu-
            sive fee for brokerage and investment management services, (f)
            client accounts of broker-dealers or registered investment advis-
            ers affiliated with such broker-dealers with which the Distributor
            has an agreement for the use of PIMCO Funds: Multi-Manager Series
            in particular investment products or programs, and (g) accounts
            for which a trust company affiliated with the Trust or the Adviser
            serves as trustee or custodian. As described above, the Distribu-
            tor will not pay any initial commission to dealers upon the sale
            of Class A shares to the purchasers described in this paragraph
            except for sales to purchasers described under (d) in this para-
            graph.
 
            Notification of Distributor An investor or participating broker
            must notify the Distributor whenever a quantity discount or re-
            duced sales charge is applicable to a purchase and must provide
            the Distributor with sufficient information at the time of pur-
            chase to verify that each purchase qualifies for the privilege or
            discount. Upon such notification, the investor will receive the
            lowest applicable sales charge. The quantity discounts described
            above may be modified or terminated at any time.
 
            Class A Deferred Sales Charge For all Portfolios, investors who
            purchase $1,000,000 or more of Class A shares (and, thus, purchase
            such shares without any initial sales charge) may be subject to a
            1% CDSC (the "Class A CDSC") if such shares are redeemed within 18
            months of their purchase. The Class A CDSC does not apply to in-
            vestors purchasing $1,000,000 or more of any Portfolio's Class A
            shares if such investors are otherwise eligible to purchase Class
            A shares without any sales charge because they are described under
            "Sales at Net Asset Value" above.
 
26  PIMCO Funds Asset Allocation Series


<PAGE>
 
               For purchases subject to the Class A CDSC, a 1% CDSC will apply
            for any redemption of such Class A shares that occurs within 18
            months of their purchase. No CDSC will be imposed if the shares
            redeemed have been acquired through the reinvestment of dividends
            or capital gains distributions or if the amount redeemed is de-
            rived from increases in the value of the account above the amount
            of purchase payments subject to the CDSC. In determining whether a
            CDSC is payable, it is assumed that Class A shares acquired
            through the reinvestment of dividends and distributions are re-
            deemed first, and thereafter that Class A shares that have been
            held by an investor for the longest period of time are redeemed
            first.
               The Class A CDSC is currently waived in connection with certain
            redemptions as described above under "Alternative Purchase Ar-
            rangements--Waiver of Contingent Deferred Sales Charges." For more
            information about the Class A CDSC, call the Distributor at 1-800-
            426-0107.
 
            Participating Brokers Investment dealers and other financial in-
            termediaries provide varying arrangements for their clients to
            purchase and redeem Portfolio shares. Some may establish higher
            minimum investment requirements than set forth above. Firms may
            arrange with their clients for other investment or administrative
            services and may independently establish and charge transaction
            fees and/or other additional amounts to their clients for such
            services, which charges would reduce clients' return. Firms also
            may hold Portfolio shares in nominee or street name as agent for
            and on behalf of their customers. In such instances, the Trust's
            transfer agent will have no information with respect to or control
            over accounts of specific shareholders. Such shareholders may ob-
            tain access to their accounts and information about their accounts
            only from their broker. In addition, certain privileges with re-
            spect to the purchase and redemption of shares or the reinvestment
            of dividends may not be available through such firms. Some firms
            may participate in a program allowing them access to their cli-
            ents' accounts for servicing including, without limitation, trans-
            fers of registration and dividend payee changes; and may perform
            functions such as generation of confirmation statements and dis-
            bursement of cash dividends. This Prospectus should be read in
            connection with such firms' material regarding their fees and
            services.
 
 
Deferred    Class B shares are sold at their current net asset value without
Sales       any initial sales charge. The full amount of an investor's pur-
Charge      chase payment will be invested in shares of the Portfolio(s) se-
Alternative lected. A CDSC will be imposed on Class B shares if an investor
- -- Class B  redeems an amount which causes the current value of the investor's
Shares      account for a Portfolio to fall below the total dollar amount of
            purchase payments subject to the CDSC, except that no CDSC is im-
            posed if the shares redeemed have been acquired through the rein-
            vestment of dividends or capital gains distributions or if the
            amount redeemed is derived from increases in the value of the ac-
            count above the amount of purchase payments subject to the CDSC.
               Whether a CDSC is imposed and the amount of the CDSC will de-
            pend on the number of years since the investor made a purchase
            payment from which an amount is being redeemed. Purchases are sub-
            ject to the CDSC according to the following schedule:
 
 
<TABLE>
<CAPTION>
           Year Since Purchase   Percentage Contingent
           Payment was Made      Deferred Sales Charge
           -------------------------------------------
           <S>                   <C>
           First                   5
           -------------------------------------------
           Second                  4
           -------------------------------------------
           Third                   3
           -------------------------------------------
           Fourth                  3
           -------------------------------------------
           Fifth                   2
           -------------------------------------------
           Sixth                   1
           -------------------------------------------
           Seventh                 0*
</TABLE>
 
            *After the seventh year, Class B shares convert into Class A
            shares as described below.
 
                                                 November 1, 1998 Prospectus  27


<PAGE>
 
               In determining whether a CDSC is payable, it is assumed that
            the purchase payment from which a redemption is made is the earli-
            est purchase payment from which a redemption or exchange has not
            already been fully effected.
               The following example will illustrate the operation of the
            Class B CDSC:
               Assume that an individual opens an account and makes a purchase
            payment of $10,000 for Class B shares of a Portfolio and that six
            months later the value of the investor's account for that Portfo-
            lio has grown through investment performance and reinvestment of
            distributions to $11,000. The investor then may redeem up to
            $1,000 from that Portfolio ($11,000 minus $10,000) without incur-
            ring a CDSC. If the investor should redeem $3,000, a CDSC would be
            imposed on $2,000 of the redemption (the amount by which the in-
            vestor's account for the Portfolio was reduced below the amount of
            the purchase payment). At the rate of 5%, the Class B CDSC would
            be $100.
               In determining whether an amount is available for redemption
            without incurring a CDSC, the purchase payments made for all Class
            B shares in the shareholder's account with the particular Portfo-
            lio are aggregated, and the current value of all such shares is
            aggregated. Any CDSC imposed on a redemption of Class B shares is
            paid to the Distributor.
               Class B shares are subject to higher distribution fees than
            Class A shares for a fixed period after their purchase, after
            which they automatically convert to Class A shares and are no
            longer subject to such higher distribution fees. Class B shares of
            each Portfolio automatically convert into Class A shares after
            they have been held for seven years.
               For sales of Class B shares made and services rendered to Class
            B shareholders, the Distributor intends to make payments to par-
            ticipating brokers, at the time a shareholder purchases Class B
            shares, of 4.00% of the purchase amount for each of the Portfo-
            lios. During such periods as may from time to time be designated
            by the Distributor, the Distributor will pay selected participat-
            ing brokers an additional amount of up to .50% of the purchase
            price on sales of Class B shares of all or selected Portfolios
            purchased to each participating broker which obtains purchase or-
            ders in amounts exceeding thresholds established from time to time
            by the Distributor.
               The Class B CDSC is currently waived in connection with certain
            redemptions as described above under "Alternative Purchase Ar-
            rangements--Waiver of Contingent Deferred Sales Charges." For more
            information about the Class B CDSC, call the Distributor at 1-800-
            426-0107.
 
 
Asset Based Class C shares are sold at their current net asset value without
Sales       any initial sales charge. A CDSC is imposed on Class C shares if
Charge      an investor redeems an amount which causes the current value of
Alternative the investor's account for a Portfolio to fall below the total
- -- Class C  dollar amount of purchase payments subject to the CDSC, except
Shares      that no CDSC is imposed if the shares redeemed have been acquired
            through the reinvestment of dividends or capital gains distribu-
            tions or if the amount redeemed is derived from increases in the
            value of the account above the amount of purchase payments subject
            to the CDSC. All of an investor's purchase payments are invested
            in shares of the Portfolio(s) selected.
               Whether a CDSC is imposed and the amount of the CDSC will de-
            pend on the number of years since the investor made a purchase
            payment from which an amount is being redeemed. Purchases are sub-
            ject to the CDSC according to the following schedule:
 
 
<TABLE>
<CAPTION>
           Year Since Purchase   Percentage Contingent
           Payment was Made      Deferred Sales Charge
           -------------------------------------------
           <S>                   <C>
           First                   1
           -------------------------------------------
           Thereafter              0
</TABLE>
 
 
               In determining whether a CDSC is payable, it is assumed that
            the purchase payment from which the redemption is made is the ear-
            liest purchase payment (from which a redemption or exchange has
            not already been effected).
 
28  PIMCO Funds Asset Allocation Series


<PAGE>
 

               The following example will illustrate the operation of the
            Class C CDSC:
               Assume that an individual opens an account and makes a purchase
            payment of $10,000 for Class C shares of a Portfolio and that six
            months later the value of the investor's account for that Portfo-
            lio has grown through investment performance and reinvestment of
            distributions to $11,000. The investor then may redeem up to
            $1,000 from that Portfolio ($11,000 minus $10,000) without incur-
            ring a CDSC. If the investor should redeem $3,000, a CDSC would be
            imposed on $2,000 of the redemption (the amount by which the in-
            vestor's account for the Portfolio was reduced below the amount of
            the purchase payment). At the rate of 1%, the Class C CDSC would
            be $20.
               In determining whether an amount is available for redemption
            without incurring a CDSC, the purchase payments made for all Class
            C shares in the shareholder's account with the particular Portfo-
            lio are aggregated, and the current value of all such shares is
            aggregated. Any CDSC imposed on a redemption of Class C shares is
            paid to the Distributor. Unlike Class B shares, Class C shares do
            not automatically convert to any other class of shares of the
            Portfolios.
               Except as described below, for sales of Class C shares made and
            services rendered to Class C shareholders, the Distributor expects
            to make payments to participating brokers, at the time the share-
            holder purchases Class C shares, of 1.00% (representing .75% dis-
            tribution fees and .25% servicing fees) of the purchase amount for
            all Portfolios. For sales of Class C shares made to participants
            making periodic purchases of not less than $50 through certain em-
            ployer sponsored savings plans which are clients of a broker-
            dealer with which the Distributor has an agreement with respect to
            such purchases, no payments are made at the time of purchase. Dur-
            ing such periods as may from time to time be designated by the
            Distributor, the Distributor will pay an additional amount of up
            to .50% of the purchase price on sales of Class C shares of all or
            selected Portfolios purchased to each participating broker which
            obtains purchase orders in amounts exceeding thresholds estab-
            lished from time to time by the Distributor.
               The Class C CDSC is currently waived in connection with certain
            redemptions as described above under "Alternative Purchase Ar-
            rangements--Waiver of Contingent Deferred Sales Charges." For more
            information about the Class C CDSC, contact the Distributor at 1-
            800-426-0107.
 
            Exchange Privilege
 
            A shareholder may exchange Class A, Class B and Class C shares of
            any Portfolio for the same Class of shares of any other Portfolio
            or other series of the Trust in an account with identical regis-
            tration on the basis of their respective net asset values. Class
            A, Class B and Class C shares of each Portfolio may also be ex-
            changed for shares of the same class of a series of PIMCO Funds:
            Pacific Investment Management Series. There are currently no ex-
            change fees or charges. Exchanges of shares outstanding on Septem-
            ber 30, 1998 may be made in any amount through December 31, 1998
            into any other Portfolio. All other exchanges, including exchanges
            from a Portfolio into another series of the Trust or of PIMCO
            Funds: Pacific Investment Management Series, are subject to the
            $2,500 minimum initial purchase requirement for each Portfolio,
            except with respect to tax-qualified programs and exchanges ef-
            fected through the PIMCO Funds Auto-Exchange plan. An exchange
            will constitute a taxable sale for federal income tax purposes.
               
               Investors who maintain their account with the Distributor may
            exchange shares by a written exchange request sent to PIMCO Funds
            Distributors LLC, P.O. Box 9688, Providence, RI 02940-0926 or, un-
            less the investor has specifically declined telephone exchange
            privileges on the account application or elected in writing not to
            utilize telephone exchanges, by a telephone request to the Trans-
            fer Agent at 1-800-426-0107. The Trust will employ reasonable pro-
            cedures to confirm that instructions communicated by telephone are
            genuine, and may be liable for any losses due to unauthorized or
            fraudulent instructions if it fails to employ such procedures. The
            Trust will require a form of personal identification prior to act-
            ing on a caller's telephone instructions, will provide written
            confirmations of such transactions and will record telephone in-
            structions. Exchange forms are available from the Distributor at
            1-800-426-0107 and may be used if there will be no change in the
            registered name or address of the shareholder. Changes in regis-
            tration information or account privileges may be made in writing
            to the Transfer Agent, First Data Investor     
 

                                                November 1, 1998 Prospectus   29
<PAGE>
 
               
            Services Group, Inc., Inc., P.O. Box 9688, Providence, RI 02940-
            0926, or by use of forms which are available from the Distributor.
            A signature guarantee is required. See "How to Buy Shares--Signa-
            ture Guarantee." Telephone exchanges may be made between
            9:00 a.m., Eastern time and the close of regular trading (normally
            4:00 p.m., Eastern time) on the Exchange on any day the Exchange
            is open (generally weekdays other than normal holidays). The Trust
            reserves the right to refuse exchange purchases if, in the judg-
            ment of the Adviser, the purchase would adversely affect the Port-
            folio and its shareholders. In particular, a pattern of exchanges
            characteristic of "market-timing" strategies may be deemed by the
            Adviser to be detrimental to the Trust or a particular Portfolio.
                
                   
               Currently, the Trust limits the number of "round trip" ex-
            changes an investor may make. An investor makes a "round trip" ex-
            change when the investor purchases shares of a particular Portfo-
            lio, subsequently exchanges those shares for shares of a different
            Portfolio or other PIMCO Fund and then exchanges back into the
            originally purchased Portfolio. The Trust has the right to refuse
            any exchange for any investor who completes (by making the ex-
            change back into the shares of the originally purchased Portfolio)
            more than six round trip exchanges in any twelve-month period. Al-
            though the Trust has no current intention of terminating or modi-
            fying the exchange privilege other than as set forth in the pre-
            ceding sentence, it reserves the right to do so at any time. Ex-
            cept as otherwise permitted by Securities and Exchange Commission
            regulations, the Trust will give 60 days' advance notice to share-
            holders of any termination or material modification of the ex-
            change privilege. For further information about exchange privi-
            leges, contact your participating broker or call the Transfer
            Agent at 1-800-426-0107.
               With respect to Class B and Class C shares, or Class A shares
            subject to a CDSC, if less than all of an investment is exchanged
            out of a Portfolio, any portion of the investment attributable to
            capital appreciation and/or reinvested dividends or capital gains
            distributions will be exchanged first, and thereafter any portions
            exchanged will be from the earliest investment made in the Portfo-
            lio from which the exchange was made. Shareholders should take
            into account the effect of any exchange on the applicability of
            any CDSC that may be imposed upon any subsequent redemption.
               Investors may also select the PIMCO Funds Auto-Exchange plan
            which establishes automatic periodic exchanges. For further infor-
            mation on automatic exchanges, see "How to Buy Shares--PIMCO Funds
            Auto-Exchange" above.
 
            How to Redeem
 
            Class A, Class B or Class C shares may be redeemed through a par-
            ticipating broker, by telephone, by submitting a written redemp-
            tion request directly to the Transfer Agent (for non-broker ac-
            counts), or through an Automatic Withdrawal Plan or PIMCO Funds
            Fund Link.
 
               A CDSC may apply to a redemption of Class A, Class B or Class C
            shares. See "Alternative Purchase Arrangements" above. Shares are
            redeemed at their net asset value next determined after a proper
            redemption request has been received, less any applicable CDSC.
            There is no charge by the Distributor (other than an applicable
            CDSC) with respect to a redemption; however, a participating bro-
            ker who processes a redemption for an investor may charge custom-
            ary commissions for its services. Dealers and other financial
            services firms are obligated to transmit orders promptly. Requests
            for redemption received by dealers or other firms prior to the
            close of regular trading (normally 4:00 p.m., Eastern time) on the
            Exchange on a regular business day and received by the Distributor
            prior to the close of the Distributor's business day will be con-
            firmed at the net asset value effective as of the closing of the
            Exchange on that day, less any applicable CDSC.
 
 
Direct
Redemption  A shareholder's original account application permits the share-
            holder to redeem by written request and by telephone (unless the
            shareholder specifically elects not to utilize telephone redemp-
            tions) and to elect one or more of the additional redemption pro-
            cedures described below. A shareholder may change the instructions
            indicated on his original account application, or may request ad-
            ditional redemption options, only by transmitting a written direc-
            tion to the
 
30  PIMCO Funds Asset Allocation Series

<PAGE>
 
            Transfer Agent. Requests to institute or change any of the addi-
            tional redemption procedures will require a signature guarantee.
               Redemption proceeds will normally be mailed to the redeeming
            shareholder within seven days or, in the case of wire transfer or
            Fund Link redemptions, sent to the designated bank account within
            one business day. Fund Link redemptions may be received by the
            bank on the second or third business day. In cases where shares
            have recently been purchased by personal check, redemption pro-
            ceeds may be withheld until the check has been collected, which
            may take up to 15 days. To avoid such withholding, investors
            should purchase shares by certified or bank check or by wire
            transfer.
 
 
Written        
Requests    To redeem shares in writing (whether or not represented by certif-
            icates), a shareholder must send the following items to the
            Trans-fer Agent, First Data Services Group, Inc., P.O. Box
            9688, Provi-dence, RI 02940-0926:     
                (1) a written request for redemption signed by all registered
                    owners exactly as the account is registered on the Trans-
                    fer Agent's records, including fiduciary titles, if any,
                    and specifying the account number and the dollar amount or
                    number of shares to be redeemed;
                (2) for certain redemptions described below, a guarantee of
                    all signatures on the written request or on the share cer-
                    tificate or accompanying stock power, if required, as de-
                    scribed under "How to Buy Shares--Signature Guarantee";
                (3) any share certificates issued for any of the shares to be
                    redeemed (see "Certificated Shares" below); and
                (4) any additional documents which may be required by the
                    Transfer Agent for redemption by corporations, partner-
                    ships or other organizations, executors, administrators,
                    trustees, custodians or guardians, or if the redemption is
                    requested by anyone other than the shareholder(s) of rec-
                    ord.
               Transfers of shares are subject to the same requirements. A
            signature guarantee is not required for redemptions of $50,000 or
            less, requested by and payable to all shareholders of record for
            the account, to be sent to the address of record for that account.
            To avoid delay in redemption or transfer, shareholders having any
            questions about these requirements should contact the Transfer
            Agent in writing or call 1-800-426-0107 before submitting a re-
            quest. Redemption or transfer requests will not be honored until
            all required documents in the proper form have been received by
            the Transfer Agent. This redemption option does not apply to
            shares held in broker "street name" accounts.
               If the proceeds of the redemption (i) exceed $50,000, (ii) are
            to be paid to a person other than the record owner, (iii) are to
            be sent to an address other than the address of the account on the
            Transfer Agent's records, or (iv) are to be paid to a corporation,
            partnership, trust or fiduciary, the signature(s) on the redemp-
            tion request and on the certificates, if any, or stock power must
            be guaranteed as described above, except that the Distributor may
            waive the signature guarantee requirement for redemptions up to
            $2,500 by a trustee of a qualified retirement plan, the adminis-
            trator for which has an agreement with the Distributor.
 
 
Telephone   The Trust accepts telephone requests for redemption of
Redemptions uncertificated shares for amounts up to $50,000 within any seven
            calendar day period, except for investors who have specifically
            declined telephone redemption privileges on the account applica-
            tion or elected in writing not to utilize telephone redemptions.
            The proceeds of a telephone redemption will be sent to the record
            shareholder at his record address. Changes in account information
            must be made in a written authorization with a signature guaran-
            tee. See "How to Buy Shares--Signature Guarantee." Telephone re-
            demptions will not be accepted during the 30-day period following
            any change in an account's record address. This redemption option
            does not apply to shares held in broker "street name" accounts.
               By completing an account application, an investor agrees that
            the Trust, the Distributor and the Transfer Agent shall not be li-
            able for any loss incurred by the investor by reason of the Trust
            accepting unauthorized telephone redemption requests for his ac-
            count if the Trust reasonably believes the instructions to be gen-
            uine. Thus, shareholders risk possible losses in the event of a
            telephone redemption not authorized by them. The Trust may accept
            telephone redemption instructions from any person identifying him-
            self as the owner of an account or the owner's broker where the
            owner has not declined in writing to utilize this service. The
            Trust will employ reasonable procedures to confirm
 
                                            November 1, 1998 Prospectus  31
<PAGE>


            that instructions communicated by telephone are genuine, and may
            be liable for any losses due to unauthorized or fraudulent in-
            structions if it fails to employ such procedures. The Trust will
            require a form of personal identification prior to acting on a
            caller's telephone instructions, will provide written confirma-
            tions of such transactions and will record telephone instructions.
               A shareholder making a telephone redemption should call the
            Transfer Agent at 1-800-426-0107 and state (i) the name of the
            shareholder as it appears on the Transfer Agent's records, (ii)
            his account number with the Trust, (iii) the amount to be with-
            drawn and (iv) the name of the person requesting the redemption.
            Usually the proceeds are sent to the investor on the next Trust
            business day after the redemption is effected, provided the re-
            demption request is received prior to the close of regular trading
            (normally 4:00 p.m., Eastern time) on the Exchange that day. If
            the redemption request is received after the close of the Ex-
            change, the redemption is effected on the following Trust business
            day at that day's net asset value and the proceeds are usually
            sent to the investor on the second following Trust business day.
            The Trust reserves the right to terminate or modify the telephone
            redemption service at any time. During times of severe disruptions
            in the securities markets, the volume of calls may make it diffi-
            cult to redeem by telephone, in which case a shareholder may wish
            to send a written request for redemption as described under "Writ-
            ten Requests" above. Telephone communications may be recorded by
            the Distributor or the Transfer Agent.
 
 
Fund Link   If a shareholder has established Fund Link, the shareholder may
Redemptions redeem shares by telephone and have the redemption proceeds sent
            to a designated account at a financial institution. Fund Link is
            normally established within 45 days of receipt of a Fund Link ap-
            plication by the Transfer Agent. To use Fund Link for redemptions,
            call the Transfer Agent at 1-800-426-0107. Subject to the limita-
            tions set forth above under "Telephone Redemptions," the Distribu-
            tor, the Trust and the Transfer Agent may rely on instructions by
            any registered owner believed to be genuine and will not be re-
            sponsible to any shareholder for any loss, damage or expense aris-
            ing out of such instructions. Requests received by the Transfer
            Agent prior to the close of regular trading (normally 4:00 p.m.,
            Eastern time) on the Exchange on a business day will be processed
            at the net asset value on that day and the proceeds (less any
            CDSC) will normally be sent to the designated bank account on the
            following business day and received by the bank on the second or
            third business day. If the redemption request is received after
            the close of regular trading on the Exchange, the redemption is
            effected on the following business day. Shares purchased by check
            may not be redeemed through Fund Link until such shares have been
            owned (i.e., paid for) for at least 15 days. Fund Link may not be
            used to redeem shares held in certificated form.
               Changes in bank account information must be made by completing
            a new Fund Link application, signed by all owners of record of the
            account, with all signatures guaranteed. See "How to Buy Shares--
            Signature Guarantee." See "How to Buy Shares--PIMCO Funds Fund
            Link" for information on establishing the Fund Link privilege. The
            Trust may terminate the Fund Link program at any time without no-
            tice to shareholders. This redemption option does not apply to
            shares held in broker "street name" accounts.
 
 
PIMCO Funds PIMCO Funds Automated Telephone System ("ATS") is an automated
Automated   telephone system that enables shareholders to perform a number of
Telephone   account transactions automatically using a touch-tone telephone.
System      ATS may be used on already- established Portfolio accounts after
            you obtain a Personal Identification Number (PIN) by calling the
            special ATS number: 1-800-223-2413.
            Purchasing Shares. You may purchase shares in amounts up to
            $100,000 by telephone by calling 1-800-223-2413. You must have es-
            tablished ATS privileges to link your bank account with the Port-
            folio to pay for these purchases.
            Exchanging Shares. With the PIMCO Funds Exchange Privilege, you
            can exchange shares automatically by telephone from your Fund Link
            Account to another PIMCO Funds account you have already estab-
            lished by calling 1-800-223-2413. Please refer to "Exchange Privi-
            lege" for details.
            Redemptions. You may redeem shares by telephone automatically by
            calling 1-800-223-2413 and the Portfolio will send the proceeds
            directly to your Portfolio bank account. Please refer to "How to
            Redeem" for details.
 
32  PIMCO Funds Asset Allocation Series

<PAGE>
 
Expedited      
Wire        If a shareholder has given authorization for expedited wire re-
Transfer    demption, shares can be redeemed and the proceeds sent by federal
Redemptions wire transfer to a single previously designated bank account. Re-
            quests received by the Trust prior to the close of the Exchange
            will result in shares being redeemed that day at the next deter-
            mined net asset value (less any CDSC) and normally the proceeds
            being sent to the designated bank account the following business
            day. The bank must be a member of the Federal Reserve wire system.
            Delivery of the proceeds of a wire redemption request may be de-
            layed by the Trust for up to 7 days if the Distributor deems it
            appropriate under then current market conditions. Once authoriza-
            tion is on file, the Trust will honor requests by any person iden-
            tifying himself as the owner of an account or the owner's broker
            by telephone at 1-800-426-0107 or by written instructions. The
            Trust cannot be responsible for the efficiency of the Federal Re-
            serve wire system or the shareholder's bank. The Trust does not
            currently charge for wire transfers. The shareholder is responsi-
            ble for any charges imposed by the shareholder's bank. The minimum
            amount that may be wired is $2,500. The Trust reserves the right
            to change this minimum or to terminate the wire redemption privi-
            lege. Shares purchased by check may not be redeemed by wire trans-
            fer until such shares have been owned (i.e., paid for) for at
            least 15 days. Expedited wire transfer redemptions may be autho-
            rized by completing a form available from the Distributor. Wire
            redemptions may not be used to redeem shares in certificated form.
            To change the name of the single bank account designated to re-
            ceive wire redemption proceeds, it is necessary to send a written
            request with signatures guaranteed to PIMCO Funds Distributors
            LLC, P.O. Box 9688, Providence, RI 02940-0926. See "How to Buy
            Shares--Signature Guarantee." This redemption option does not ap-
            ply to shares held in broker "street name" accounts.     
 
 
Certificated
Shares       

            To redeem shares for which certificates have been issued, the cer-
            tificates must be mailed to or deposited with the Trust, duly 
            endorsed or accompanied by a duly endorsed stock power or by a 
            written request for redemption. Signatures must be guaranteed as de-
            scribed under "How to Buy Shares--Signature Guarantee." Further
            documentation may be requested from institutions or fiduciary ac-
            counts, such as corporations, custodians (e.g., under the Uniform
            Gifts to Minors Act), executors, administrators, trustees or
            guardians ("institutional account owners"). The redemption request
            and stock power must be signed exactly as the account is regis-
            tered, including indication of any special capacity of the regis-
            tered owner.
 
Automatic   An investor who owns or buys shares of a Portfolio having a net
Withdrawal  asset value of $10,000 or more may open an Automatic Withdrawal
Plan        Plan and have a designated sum of money (not less than $100 per
            Portfolio) paid monthly (or quarterly) to the investor or another
            person. Such a plan may be established by completing the appropri-
            ate section of the account application or you may obtain an Auto-
            matic Withdrawal Plan application from the Distributor or your
            broker. If an Automatic Withdrawal Plan is set up after the ac-
            count is established providing for payment to a person other than
            the record shareholder or to an address other than the address of
            record, a signature guarantee is required. See "How to Buy
            Shares--Signature Guarantee." Class A, Class B and Class C shares
            of any Portfolio are deposited in a plan account and all distribu-
            tions are reinvested in additional shares of the particular class
            of the Portfolio at net asset value. Shares in a plan account are
            then redeemed at net asset value (less any applicable CDSC) to
            make each withdrawal payment. Any applicable CDSC may be waived
            for certain redemptions under an Automatic Withdrawal Plan. See
            "Alternative Purchase Arrangements--Waiver of Contingent Deferred
            Sales Charges."
               Redemptions for the purpose of withdrawals are ordinarily made
            on the business day preceding the day of payment at that day's
            closing net asset value and checks are mailed on the day of pay-
            ment selected by the shareholder. The Transfer Agent may acceler-
            ate the redemption and check mailing date by one day to avoid
            weekend delays. Payment will be made to any person the investor
            designates; however, if the shares are registered in the name of a
            trustee or other fiduciary, payment will be made only to the fidu-
            ciary, except in the case of a profit-sharing or pension plan
            where payment will be made to the designee. As withdrawal payments
            may include a return of principal, they cannot be considered a
            guaranteed annuity or actual yield of income to the investor. The
            redemption of shares in connection with an Automatic Withdrawal
            Plan may result in a gain or loss for tax purposes. Continued
            withdrawals
 
                                             November 1, 1998 Prospectus  33
<PAGE>
 
            in excess of income will reduce and possibly exhaust invested
            principal, especially in the event of a market decline. The main-
            tenance of an Automatic Withdrawal Plan concurrently with pur-
            chases of additional shares of the Portfolio would be disadvanta-
            geous to the investor because of the CDSC that may become payable
            on such withdrawals in the case of Class A, Class B or Class C
            shares and because of the initial sales charge in the case of
            Class A shares. For this reason, the minimum investment accepted
            for a Portfolio while an Automatic Withdrawal Plan is in effect
            for that Portfolio is $1,000, and an investor may not maintain a
            plan for the accumulation of shares of the Portfolio (other than
            through reinvestment of distributions) and an Automatic Withdrawal
            Plan at the same time. The Trust or the Distributor may terminate
            or change the terms of the Automatic Withdrawal Plan at any time.
               Because the Automatic Withdrawal Plan may involve invasion of
            capital, investors should consider carefully with their own finan-
            cial advisors whether the plan and the specified amounts to be
            withdrawn are appropriate in their circumstances. The Trust and
            the Distributor make no recommendations or representations in this
            regard.
 
 
Redemptions The Trust agrees to redeem shares of each Portfolio solely in cash
in Kind     up to the lesser of $250,000 or 1% of the Portfolio's net assets
            during any 90-day period for any one shareholder. In consideration
            of the best interests of the remaining shareholders, the Trust re-
            serves the right to pay any redemption proceeds exceeding this
            amount in whole or in part by a distribution in kind of securities
            held by a Portfolio in lieu of cash. When shares are redeemed in
            kind, the redeeming shareholder may incur transaction costs upon
            the disposition of the securities received in the distribution.
 
            Distributor and Distribution and Servicing Plans
 
            PIMCO Funds Distributors LLC (the "Distributor"), a wholly owned
            subsidiary of the Adviser, is the principal underwriter of the
            Trust's shares and in that connection makes distribution and ser-
            vicing payments to participating brokers and servicing payments to
            certain banks and other financial intermediaries in connection
            with the sale of Class B and Class C shares and servicing payments
            to participating brokers, certain banks and other financial inter-
            mediaries in connection with the sale of Class A shares. In the
            case of Class A shares, these parties are also compensated based
            on the amount of the front-end sales charge reallowed by the Dis-
            tributor, except in cases where Class A shares are sold without a
            front-end sales charge (although the Distributor may pay brokers
            additional compensation in connection with sales of Class A shares
            without a sales charge). In the case of Class B shares, partici-
            pating brokers and other financial intermediaries are compensated
            by an advance of a sales commission by the Distributor. In the
            case of Class C shares, part or all of the first year's distribu-
            tion and servicing fee is generally paid at the time of sale.
               Pursuant to a Distribution Agreement with the Trust, with re-
            spect to each Portfolio's Class A, Class B and Class C shares, the
            Distributor bears various other promotional and sales related ex-
            penses, including the cost of printing and mailing prospectuses to
            persons other than current shareholders. The Distributor, located
            at 2187 Atlantic Street, Stamford, Connecticut 06902, is a broker-
            dealer registered with the Securities and Exchange Commission.
 
            Class A Servicing Fees As compensation for services rendered and
            expenses borne by the Distributor in connection with personal
            services rendered to Class A shareholders of the Trust and the
            maintenance of Class A shareholder accounts, the Trust pays the
            Distributor servicing fees up to the annual rate of .25% (calcu-
            lated as a percentage of each Portfolio's average daily net assets
            attributable to Class A shares).
 
            Class B and Class C Distribution and Servicing Fees As compensa-
            tion for services rendered and expenses borne by the Distributor
            in connection with the distribution of Class B and Class C shares
            of the Trust, and in connection with personal services rendered to
            Class B and Class C shareholders of the Trust and the maintenance
            of Class B and Class C shareholder accounts, the Trust pays the
            Distributor servicing and distribution fees up to the annual rates
            set
 
34  PIMCO Funds Asset Allocation Series



<PAGE>

            forth below (calculated as a percentage of each Portfolio's aver-
            age daily net assets attributable to Class B and Class C shares,
            respectively):
 
 
<TABLE>
<CAPTION>
                           Servicing Distribution
                           Fee       Fee
           --------------------------------------
           <S>             <C>       <C>
           All Portfolios  .25%      .75%
</TABLE>
 
 
               The Class A servicing fees and Class B and Class C distribution
            and servicing fees paid to the Distributor are made under Distri-
            bution and Servicing Plans adopted pursuant to Rule 12b-l under
            the Investment Company Act of 1940, as amended (the "1940 Act"),
            and are of the type known as "compensation" plans. This means
            that, although the Trustees of the Trust are expected to take into
            account the expenses of the Distributor and its predecessors in
            their periodic review of the Distribution and Servicing Plans, the
            fees are payable to compensate the Distributor for services ren-
            dered even if the amount paid exceeds the Distributor's expenses.
               The distribution fee applicable to Class B and Class C shares
            may be spent by the Distributor on any activities or expenses pri-
            marily intended to result in the sale of Class B or Class C
            shares, respectively, including compensation to, and expenses (in-
            cluding overhead and telephone expenses) of, financial consultants
            or other employees of the Distributor or of participating or in-
            troducing brokers who engage in distribution of Class B or Class C
            shares, printing of prospectuses and reports for other than exist-
            ing Class B or Class C shareholders, advertising, and preparation,
            printing and distribution of sales literature. The servicing fee,
            applicable to Class A, Class B and Class C shares of the Trust,
            may be spent by the Distributor on personal services rendered to
            shareholders of the Trust and the maintenance of shareholder ac-
            counts, including compensation to, and expenses (including tele-
            phone and overhead expenses) of, financial consultants or other
            employees of participating or introducing brokers, certain banks
            and other financial intermediaries who aid in the processing of
            purchase or redemption requests or the processing of dividend pay-
            ments, who provide information periodically to shareholders show-
            ing their positions in a Portfolio's shares, who forward communi-
            cations from the Trust to shareholders, who render ongoing advice
            concerning the suitability of particular investment opportunities
            offered by the Trust in light of the shareholders' needs, who re-
            spond to inquiries from shareholders relating to such services, or
            who train personnel in the provision of such services. Distribu-
            tion and servicing fees may also be spent on interest relating to
            unreimbursed distribution or servicing expenses from prior years.
               Many of the Distributor's sales and servicing efforts involve
            the Trust as a whole, so that fees paid by Class A, Class B or
            Class C shares of any Portfolio may indirectly support sales and
            servicing efforts relating to other shares of the same class of
            the Portfolios or other series of the Trust. In reporting its ex-
            penses to the Trustees, the Distributor itemizes expenses that re-
            late to the distribution and/or servicing of a single Portfolio's
            shares, and allocates other expenses among the Portfolios and
            other series of the Trust based on their relative net assets. Ex-
            penses allocated to each Portfolio are further allocated among its
            classes of shares annually based on the relative sales of each
            class, except for any expenses that relate only to the sale or
            servicing of a single class. The Distributor may make payments to
            brokers (and with respect to servicing fees only, to certain banks
            and other financial intermediaries) of up to the following per-
            centages annually of the average daily net assets attributable to
            shares in the accounts of their customers or clients:
 
 
              All Portfolios
 
<TABLE>
<CAPTION>
                          Servicing Distribution
                          Fee       Fee
           -------------------------------------
           <S>            <C>       <C>
           Class A        .25%      N/A
           -------------------------------------
           Class B (/1/)  .25%      None
           -------------------------------------
           Class C (/2/)  .25%      .65%
</TABLE>
 
            1. Payable only with respect to shares outstanding for one year or
            more.
            2. Payable only with respect to shares outstanding for one year or
            more except in the case of shares for which no payment is made to
            the party at the time of sale.
 
                                                 November 1, 1998 Prospectus  35


<PAGE>

               The Distributor may from time to time pay additional cash bo-
            nuses or other incentives to selected participating brokers in
            connection with the sale or servicing of Class A, Class B and
            Class C shares of the Portfolios. On some occasions, such bonuses
            or incentives may be conditioned upon the sale of a specified min-
            imum dollar amount of the shares of a Portfolio and/or all of the
            Portfolios or other series of the Trust together, or a particular
            class of shares, during a specific period of time. The Distributor
            currently expects that such additional bonuses or incentives will
            not exceed .50% of the amount of any sale. In its capacity as ad-
            ministrator for the Portfolios, PIMCO Advisors may pay participat-
            ing brokers and other intermediaries for sub-transfer agency and
            other services.
               If in any year the Distributor's expenses incurred in connec-
            tion with the distribution of Class B and Class C shares and, for
            Class A, Class B and Class C shares, in connection with the ser-
            vicing of shareholders and the maintenance of shareholder ac-
            counts, exceed the distribution and/or servicing fees paid by the
            Trust, the Distributor would recover such excess only if the Dis-
            tribution and Servicing Plan with respect to such class of shares
            continues to be in effect in some later year when the distribution
            and/or servicing fees exceed the Distributor's expenses. The Trust
            is not obligated to repay any unreimbursed expenses that may exist
            at such time, if any, as the relevant Distribution and Servicing
            Plan terminates.
               From time to time, expenses of principal underwriters incurred
            in connection with the distribution of Class B and Class C shares
            of the Portfolios, and in connection with the servicing of Class
            A, Class B and Class C shareholders of the Portfolios and the
            maintenance of Class A, Class B and Class C shareholder accounts,
            may exceed the distribution and/or servicing fees collected by the
            Distributor.
 
            How Net Asset Value Is Determined
 
            The net asset values of Class A, Class B and Class C shares of
            each Portfolio of the Trust will be determined once on each day on
            which the Exchange is open (a "Business Day"), as of the close of
            regular trading (normally 4:00 p.m., Eastern time) on the Ex-
            change. Net asset value will not be determined on days on which
            the Exchange is closed.
               The market values of the shares of the Underlying Funds held by
            the Portfolios are determined once each Business Day in the same
            manner as the net asset values of the Portfolios' shares are de-
            termined as described below.
               Each Portfolio's liabilities are allocated among its classes.
            The total of such liabilities allocated to a class plus that
            class's distribution and/or servicing fees and any other expenses
            specially allocated to that class are then deducted from the
            class's proportionate interest in the Portfolio's assets, and the
            resulting amount for each class is divided by the number of shares
            of that class outstanding to produce the class's "net asset value"
            per share. Under certain circumstances, the per share net asset
            value of the Class B and Class C shares of the Portfolios that do
            not declare regular income dividends on a daily basis may be lower
            than the per share net asset value of the Class A shares as a re-
            sult of the daily expense accruals of the distribution fee appli-
            cable to the Class B and Class C shares. Generally, for Portfolios
            that pay income dividends, those dividends are expected to differ
            over time by approximately the amount of the expense accrual dif-
            ferential between a particular Portfolio's classes.
 
            Distributions
 
            Shares begin earning dividends on the day after the date that
            funds are received by the Trust for the purchase of Class A, Class
            B and Class C shares. Net investment income from interest and div-
            idends, if any, will be declared and paid to shareholders of rec-
            ord at least monthly by the 30/70 Portfolio, at least quarterly by
            the 60/40 Portfolio and at least annually by the 90/10 Portfolio.
            Any net capital gains from the sale of portfolio securities will
            be distributed no less frequently than once annually. Net short-
            term capital gains may be paid more frequently.
               All dividends and/or distributions will be paid in the form of
            additional shares of the class of shares of the Portfolio to which
            the dividends and/or distributions relate or, at the election of
            the shareholder, of another series of the Trust or PIMCO Funds:
            Pacific Investment Management Series as described below, at net
            asset value, unless the shareholder elects to receive cash (either
            paid to shareholders directly or credited to their account with
            their participat-
 
36  PIMCO Funds Asset Allocation Series


<PAGE>
 
            ing broker). If a shareholder has elected to receive dividends
            and/or capital gain distributions in cash and the postal or other
            delivery service is unable to deliver checks to the shareholder's
            address of record, such shareholder's distributions will automati-
            cally be invested in PIMCO Money Market Fund until such share-
            holder is located. Dividends paid by each Portfolio with respect
            to each class of shares are calculated in the same manner and at
            the same time, but dividends on Class B and Class C shares are ex-
            pected to be lower than dividends on Class A shares as a result of
            the distribution fee applicable to Class B and Class C shares.
            There are no sales charges on reinvested dividends.
               Class A, Class B and Class C shareholders of the Portfolios may
            elect to invest dividends and/or distributions paid by any Portfo-
            lio in shares of the same class of any other series of the Trust
            or PIMCO Funds: Pacific Investment Management Series which offers
            such class of shares at net asset value. The shareholder must have
            an account existing in the PIMCO series selected for investment
            with the identical registered name and address and must elect this
            option on the account application, on a form provided for that
            purpose or by a telephone request to the Transfer Agent at 1-800-
            426-0107. For further information on this option, contact your
            broker or call the Distributor at 1-800-426-0107.
 
            Taxes
 
            Each Portfolio intends to qualify as a regulated investment com-
            pany annually and to elect to be treated as a regulated investment
            company under the Internal Revenue Code of 1986, as amended (the
            "Code"). As such, a Portfolio generally will not pay federal in-
            come tax on the income and gains it pays as dividends to its
            shareholders. In order to avoid a 4% federal excise tax, each
            Portfolio intends to distribute each year substantially all of its
            net income and gains.
 
               Shareholders subject to U.S. federal income tax will be subject
            to tax on dividends received from a Portfolio, regardless of
            whether received in cash or reinvested in additional shares. Dis-
            tributions received by tax-exempt shareholders will not be subject
            to federal income tax to the extent permitted under applicable tax
            law. All shareholders must treat dividends, other than capital
            gain dividends and dividends that represent a return of capital to
            shareholders, as ordinary income. In particular, distributions de-
            rived from short-term gains will be treated as ordinary income.
            Dividends designated by a Portfolio as capital gain dividends de-
            rived from the Portfolio's net capital gains (that is, the excess
            of its net long-term capital gains over its net short-term capital
            losses) are taxable to shareholders as long-term capital gain
            (generally subject to a 20% tax rate) except as provided by an ap-
            plicable tax exemption. Any distributions that are not from a
            Portfolio's net investment income or net capital gain may be char-
            acterized as a return of capital to shareholders or, in some
            cases, as capital gain. Certain dividends declared in October, No-
            vember or December of a calendar year are taxable to shareholders
            (who otherwise are subject to tax on dividends) as though received
            on December 31 of that year if paid to shareholders during January
            of the following calendar year. Each Portfolio will advise share-
            holders annually of the amount and nature of the dividends paid to
            them.
               Taxable shareholders should note that the timing of their in-
            vestment or redemptions could have undesirable tax consequences.
            Dividends and distributions on a Portfolio's shares are generally
            subject to federal income tax as described herein to the extent
            they do not exceed the Portfolio's realized income and gains, even
            though such dividends and distributions may economically represent
            a return of a particular shareholder's investment. Such distribu-
            tions are likely to occur in respect of shares purchased at a time
            when the Portfolio's net asset value reflects gains that are ei-
            ther unrealized, or realized but not distributed. Such realized
            gains may be required to be distributed even when a Portfolio's
            net asset value also reflects unrealized losses.
               A Portfolio's use of a fund-of-funds structure could affect the
            amount, timing and character of distributions to shareholders. See
            "Taxation" in the Statement of Additional Information.
               The preceding discussion relates only to federal income tax;
            the consequences under other tax laws may differ. Shareholders
            should consult their tax advisers as to the possible application
            of foreign, state and local income tax laws to Trust dividends and
            capital gain distributions. For additional information relating to
            the tax aspects of investing in a Portfolio, see the Statement of
            Additional Information.
 
                                                 November 1, 1998 Prospectus  37


<PAGE>
 
 
            Management of the Portfolios
 
            The business affairs of the Trust are managed under the direction
            of the Board of Trustees. Information about the Trustees and the
            Trust's executive officers may be found in the Statement of Addi-
            tional Information under the heading "Management of the Trust."
 
 
Investment  PIMCO Advisors serves as investment adviser to the Portfolios pur-
Adviser     suant to an investment advisory agreement with the Trust. PIMCO
            Advisors is a Delaware limited partnership organized in 1987.
            PIMCO Advisors provides investment management and advisory serv-
            ices to private accounts of institutional and individual clients
            and to mutual funds. Total assets under management by PIMCO Advi-
            sors and its subsidiary partnerships as of September 30, 1998 were
            approximately $225.9 billion. The general partners of PIMCO Advi-
            sors are PIMCO Partners, G.P. and PIMCO Advisors Holdings L.P.
            ("PAH"). PIMCO Partners, G.P. is a general partnership between
            PIMCO Holding LLC, a Delaware limited liability company and an in-
            direct wholly-owned subsidiary of Pacific Life Insurance Company,
            and PIMCO Partners LLC, a California limited liability company
            controlled by the current Managing Directors and two former Manag-
            ing Directors of Pacific Investment Management. PIMCO Partners,
            G.P. is the sole general partner of PAH. PIMCO Advisors is gov-
            erned by a Management Board, which exercises substantially all of
            the governance powers of the general partner and serves as the
            functional equivalent of a board of directors. PIMCO Advisors' ad-
            dress is 800 Newport Center Drive, Newport Beach, California
            92660. PIMCO Advisors is registered as an investment adviser with
            the Securities and Exchange Commission. PIMCO Advisors currently
            has seven subsidiary investment adviser partnerships, the follow-
            ing six of which manage one or more of the Underlying Funds:
            Blairlogie, Cadence, Columbus Circle, NFJ, Pacific Investment Man-
            agement and Parametric. On or before March 31, 1999, it is antici-
            pated that PIMCO Advisers will sell substantially all of its own-
            ership interest in Blairlogie. See "Portfolio Managers for the Un-
            derlying Funds--Blairlogie" below.
               
               PIMCO Advisors' Asset Allocation Committee is responsible for
            determining how the Portfolios' assets are allocated and reallo-
            cated from time to time among the Underlying Funds. Individuals
            who determine general investment advice and constitute the Asset
            Allocation Committee for PIMCO Advisors are William D. Cvengros,
            Timothy R. Clark, Robert S. Venable and David Young.     
               
               William D. Cvengros is the Chief Executive Officer, President
            and a Member of the Management Board of PIMCO Advisors and a
            Trustee of the Trust. He was formerly President of the Trust and a
            Director and the Vice Chairman and Chief Investment Officer of Pa-
            cific Life Insurance Company. He received a B.A. in Economics from
            the University of Notre Dame and an M.B.A. from Northwestern Uni-
            versity and he is a Chartered Financial Analyst. Timothy R. Clark
            is a Vice President of PIMCO Advisors and a Senior Vice President
            of the Distributor. He previously served as President of Katonah
            Capital Management, Inc. Prior to that, he was with Zweig Advisors
            Inc. and its affiliates serving in various capacities, including
            portfolio manager for various open- and closed-end funds. He re-
            ceived a B.A. in Economics from Harvard University and an M.B.A.
            from New York University. Robert S. Venable is a Vice President of
            PIMCO Advisors. He previously served as a Vice President and port-
            folio manager at Pacific Investment Management. Mr. Venable has a
            B.S. from the University of California, Berkeley and an M.B.A.
            from the Wharton School of Business and he is a Chartered Finan-
            cial Analyst. David Young is a Vice President in Account Manage-
            ment at Pacific Investment Management. Previously, he was a Vice
            President--Client Relations and Marketing of a former division of
            PIMCO Advisors, a Director--Client Relations with Pacific Finan-
            cial Asset Management Company and a Vice President and portfolio
            manager with Analytic Investment Management, Inc. He received a
            B.A. in Economics and Political Science and an M.B.A. from the
            University of California, Irvine and he is a Chartered Financial
            Analyst.     
               Under the investment advisory agreement, PIMCO Advisors, sub-
            ject to the supervision of the Board of Trustees, is responsible
            for providing advice and guidance with respect to the Portfolios
            and for managing, either directly or through others selected by
            the Adviser, the investment of the Portfolios. PIMCO Advisors also
            furnishes to the Board of Trustees periodic reports on the invest-
            ment performance of each Portfolio.
 
 
38  PIMCO Funds Asset Allocation Series
                                      
<PAGE>
 

               
            The PIMCO Equity Advisers Division of PIMCO Advisers manages the
            investments of PIMCO Innovation Fund, an Underlying Stock Fund.
            Pursuant to portfolio management agreements, PIMCO Advisors em-
            ploys Portfolio Managers to manage the portfolios of all of the
            other Underlying Stock Funds with the exception of PIMCO
Portfolio   StocksPLUS Fund, for which Pacific Investment Management serves as
Managers    investment adviser and Portfolio Manager. Pacific Investment Man-
for the     agement also serves as investment adviser and Portfolio Manager of
Underlying  each Underlying Bond Fund. The Portfolio Managers have full in-
Funds       vestment discretion and make all determinations with respect to
            the investment of the assets of the Underlying Funds they manage.
            If a Portfolio Manager retained by PIMCO Advisers ceases to manage
            the portfolio of an Underlying Stock Fund, PIMCO Advisors will ei-
            ther assume full responsibility for the management of that Fund,
            or retain a new portfolio manager subject to the approval of the
            Trustees and, if necessary, the shareholders of the Fund.     
               
            PIMCO Equity Advisors Division of PIMCO Advisors manages PIMCO In-
            novation Fund. Information about PIMCO Advisors is provided above
            under "Investment Adviser."     
               
              The PIMCO Equity Advisors Division provides equity-related serv-
            ices to mutual funds and institutional accounts. [Additional in-
            formation about the Division to be provided].     
 
            Pacific Investment Management manages each Underlying Bond Fund
            and PIMCO StocksPLUS Fund, each of which is a series of PIMCO
            Funds: Pacific Investment Management Series. Pacific Investment
            Management is an investment management firm organized as a general
            partnership. Pacific Investment Management has two partners: PIMCO
            Advisors as the supervisory partner, and PIMCO Management, Inc. as
            the managing partner. Pacific Investment Management Company, the
            predecessor investment adviser to Pacific Investment Management,
            commenced operations in 1971. Pacific Investment Management had
            approximately $148.1 billion of assets under management as of Sep-
            tember 30, 1998. Pacific Investment Management's address is 840
            Newport Center Drive, Suite 300, Newport Beach, California 92660.
            Pacific Investment Management is registered as an investment ad-
            viser with the Securities and Exchange Commission and as a commod-
            ity trading adviser with the CFTC.
               Pacific Investment Management specializes in all sectors of the
            fixed income market using its total return philosophy--seeking
            both yield and capital appreciation. Pacific Investment Manage-
            ment's total return philosophy revolves around the principle of
            diversification and that no single risk should dominate returns.
            By diversifying strategies, or relying on multiple sources of val-
            ue, Pacific Investment Management attempts to generate a solid
            track record with a high degree of consistency. Pacific Investment
            Management seeks to add value through the use of "top down" strat-
            egies such as its exposure to interest rates, or duration, chang-
            ing volatility, yield curve positioning and sector rotation. "Bot-
            tom up" strategies are also employed involving analysis and selec-
            tion of specific securities.
               
            Columbus Circle manages PIMCO Renaissance, Core Equity, Mid-Cap
            Equity and International Growth Funds (the "Columbus Circle
            Funds"). Columbus Circle is an investment management firm orga-
            nized as a general partnership. Columbus Circle has two partners:
            PIMCO Advisors as the supervisory partner, and Columbus Circle In-
            vestors Management Inc. as the managing partner. Columbus Circle
            Investors Division of Thomson Advisory Group L.P. ("TAG"), the
            predecessor investment adviser to Columbus Circle, commenced oper-
            ations in 1975. Accounts managed by Columbus Circle had combined
            assets as of September 30, 1998 of approximately $7.8 billion. Co-
            lumbus Circle's address is Metro Center, One Station Place, 8th
            Floor, Stamford, Connecticut 06902. Columbus Circle is registered
            as an investment adviser with the Securities and Exchange Commis-
            sion.     
               At the center of Columbus Circle's equity investment strategy
            is its theory of Positive Momentum & Positive Surprise. This the-
            ory asserts that a good company doing better than generally ex-
            pected will experience a rise in its stock price, and conversely,
            a company falling short of expectations will experience a drop in
            its stock price. Based on this theory, Columbus Circle attempts to
            manage the Columbus Circle Funds with a view to investing in grow-
            ing companies that are surprising the market with business results
            that are better than anticipated.
 
            Cadence manages PIMCO Capital Appreciation, Mid-Cap Growth, Small-
            Cap Growth, and Micro-Cap Growth Funds (the "Cadence Funds"). Ca-
            dence is an investment management firm organized as a general
            partnership. Ca-
 

                                                 November 1, 1998 Prospectus  39
<PAGE>


            dence has two partners: PIMCO Advisors as the supervisory partner,
            and Cadence Capital Management Inc. as the managing partner. Ca-
            dence Capital Management Corporation, the predecessor investment
            adviser to Cadence, commenced operations in 1988. Accounts managed
            by Cadence had combined assets as of September 30, 1998 of approx-
            imately $6.1 billion. Cadence's address is Exchange Place, 53
            State Street, Boston, Massachusetts 02109. Cadence is registered
            as an investment adviser with the Securities and Exchange Commis-
            sion.
               Cadence utilizes an equity investment strategy that focuses on
            both growth (evaluating securities on the basis of their potential
            earnings growth) and value (evaluating securities based on their
            price) characteristics, and attempts to identify reasonably priced
            securities that offer rapid prospective earnings growth potential.
            Cadence utilizes a quantitative screening process in selecting
            stocks. Distinct computerized models are used to screen and rank
            each issue in a selected universe according to growth and price
            considerations. Cadence believes that the models identify the
            stocks in the universe exhibiting growth characteristics with rea-
            sonable valuations. Stocks are then selected for a portfolio using
            qualitative research, and are replaced when they score worse-than-
            median screen ranks, have negative earnings surprises or show poor
            relative performance. The universes are rescreened frequently to
            obtain a favorable composition of growth and value characteristics
            for the Cadence Funds.
 
            NFJ manages PIMCO Equity Income, Value, Value 25, and Small-Cap
            Value Funds (the "NFJ Funds"). NFJ is an investment management
            firm organized as a general partnership. NFJ has two partners:
            PIMCO Advisors as the supervisory partner, and NFJ Management Inc.
            as the managing partner. NFJ Investment Group, Inc., the predeces-
            sor investment adviser to NFJ, commenced operations in 1989. Ac-
            counts managed by NFJ had combined assets as of September 30, 1998
            of approximately $2.2 billion. NFJ's address is 2121 San Jacinto,
            Suite 1840, Dallas, Texas 75201. NFJ is registered as an invest-
            ment adviser with the Securities and Exchange Commission.
               In managing the NFJ Funds, NFJ uses a value-based philosophy
            and investment process. NFJ adheres to the traditional value phi-
            losophy that stocks priced lower than the true value of the issu-
            ing company will increase in value, but differs from many value
            managers by also considering industry diversification and the ben-
            efits it affords a portfolio. NFJ classifies stock universes by
            industry and according to market capitalization. Stocks are se-
            lected from a universe using screening processes that focus on low
            P/E ratios and/or high yields within each industry, subject to
            quality and price momentum screens. Although quarterly rebalancing
            is a general rule, NFJ will replace stocks when an alternate stock
            within the same industry has a significantly better characteris-
            tics than the current NFJ Fund holdings.
 
            Blairlogie manages PIMCO International Fund. Blairlogie is an in-
            vestment management firm, organized as a limited partnership under
            the laws of the United Kingdom, with two general partners and one
            limited partner. Currently, the general partners are PIMCO Advi-
            sors, which serves as the supervisory partner, and Blairlogie
            Holdings Limited, a wholly owned subsidiary of PIMCO Advisors,
            which serves as the managing partner. Blairlogie Capital Manage-
            ment Ltd., the predecessor investment adviser to Blairlogie, com-
            menced operations in 1992. Accounts managed by Blairlogie had com-
            bined assets as of September 30, 1998 of approximately $700 mil-
            lion. Blairlogie's address is 4th Floor, 125 Princes Street, Edin-
            burgh EH2 4AD, Scotland. Blairlogie is registered as an investment
            adviser with the Securities and Exchange Commission in the United
            States and with the Investment Management Regulatory Organisation
            in the United Kingdom.
               Blairlogie has more than 50 years of experience in the highly
            specialized field of international investing. Its investment phi-
            losophy combines traditional Scottish standards of prudent invest-
            ment management with modern quantitative analytical tools. In man-
            aging PIMCO International Fund, Blairlogie employs sophisticated
            analytical tools to attain specific information on each country
            considered for investment and conducts personal visits to numerous
            geographical regions, using the information to determine country
            allocations. It then selects what it believes to be the best
            stocks within each country according to growth, quality and value
            characteristics. Through continued monitoring, sell decisions are
            influenced by changes in country weightings or changes in a par-
            ticular security's attractiveness.
               It is anticipated that PIMCO Advisors will sell substantially
            all of its ownership interest in Blairlogie to Alleghany Asset
            Management, Inc. on or before March 31, 1999 (the "Blairlogie
            Transaction"). The Blairlogie Transac-
 
40  PIMCO Funds Asset Allocation Series

<PAGE>
 
            tion is subject to a number of conditions. PIMCO Advisors has de-
            termined to terminate its portfolio management agreement with
            Blairlogie with respect to the International Fund, effective on or
            about the date of the Blairlogie Transaction. Under the Trust's
            investment advisory agreement, PIMCO Advisors would then assume
            full responsibility for managing the International Fund's portfo-
            lio. This Prospectus will be supplemented or revised if these
            events do not occur substantially in accordance with the schedule
            outlined above.
 
            Parametric manages PIMCO Enhanced Equity, Tax-Efficient Equity,
            Structured Emerging Markets, and Tax-Efficient Structured Emerging
            Markets Funds (the "Parametric Funds"). Parametric is an invest-
            ment management firm organized as a general partnership. Paramet-
            ric has two partners: PIMCO Advisors as the supervisory partner,
            and Parametric Management Inc. as the managing partner. Parametric
            Portfolio Associates, Inc., the predecessor investment adviser to
            Parametric, commenced operations in 1987. Accounts managed by Par-
            ametric had combined assets as of September 30, 1998 of approxi-
            mately $2.8 billion. Parametric's address is 7310 Columbia Center,
            701 Fifth Avenue, Seattle, Washington 98104-7090. Parametric is
            registered as an investment adviser with the SEC and as a commod-
            ity trading adviser with the CFTC.
               Parametric has developed a structured, long-term investment
            process that combines quantitatively-driven fundamental analysis
            and economic methods. Parametric attempts to build risk-controlled
            portfolios of equity securities that are both reasonably priced
            and poised to benefit from investor sentiment by combining its un-
            derstanding of the financial markets and investment behavior with
            extensive quantitative research and modeling. This investment phi-
            losophy is applied for each Parametric Fund, including those with
            an emerging markets or tax-efficient focus.
 
 
Fund
Administrator
            PIMCO Advisors also serves as administrator (the "Administrator")
            for the Portfolios' Class A, Class B and Class C shares pursuant
            to an administration agreement with the Trust. The Administrator
            provides or procures administrative services for Class A, Class B
            and Class C shareholders of the Portfolios, which include clerical
            help and accounting, bookkeeping, internal audit services and cer-
            tain other services required by the Portfolios, and preparation of
            reports to the Portfolios' shareholders and regulatory filings.
            The Administrator has retained Pacific Investment Management to
            provide such services as sub-administrator. The Administrator
            and/or the sub-administrator may also retain other affiliates to
            provide certain of these services. In addition, the Administrator,
            at its own expense, arranges for the provision of legal, audit,
            custody, transfer agency (including sub-transfer agency and other
            administrative services) and other services necessary for the or-
            dinary operation of the Portfolios, and is responsible for the
            costs of registration of the Trust's shares and the printing of
            prospectuses and shareholder reports for current shareholders.
               The Portfolios (and not the Administrator) are responsible for
            the following expenses: (i) salaries and other compensation of any
            of the Trust's executive officers and employees who are not offi-
            cers, directors, stockholders, or employees of PIMCO Advisors, Pa-
            cific Investment Management, or their subsidiaries or affiliates;
            (ii) taxes and governmental fees; (iii) brokerage fees and commis-
            sions and other portfolio transaction expenses; (iv) the costs of
            borrowing money, including interest expenses; (v) fees and ex-
            penses of the Trustees who are not "interested persons" of the Ad-
            viser, any Portfolio Manager, or the Trust, and any counsel re-
            tained exclusively for their benefit; (vi) extraordinary expenses,
            including costs of litigation and indemnification expenses; (vii)
            expenses which are capitalized in accordance with generally ac-
            cepted accounting principles; and (viii) any expenses allocated or
            allocable to a specific class of shares, which include distribu-
            tion and/or service fees payable with respect to Class A, Class B
            and Class C shares, and may include certain other expenses as per-
            mitted by the Trust's Multiple Class Plan adopted pursuant to Rule
            18f-3 under the 1940 Act, subject to review and approval by the
            Trustees. The Portfolios also indirectly pay their proportionate
            share of the expenses of the Underlying Funds (including advisory
            and administrative fees) in which they invest. See "Underlying
            Fund Expenses" below.
 
                                             November 1, 1998 Prospectus  41
<PAGE>
 
 
Advisory    The Portfolios do not pay any fees to PIMCO Advisors under the
Fees        Trust's investment advisory agreement in return for the advisory
            and asset allocation services provided by PIMCO Advisors. The
            Portfolios do, however, indirectly pay a proportionate share of
            the advisory fees paid to PIMCO Advisors and Pacific Investment
            Management by the Underlying Funds in which the Portfolios invest.
            See "Underlying Fund Expenses" below.
 
 
Administrative
Fees
            The Portfolios feature fixed administrative fees. For providing or
            procuring administrative services to the Portfolios as described
            above, the Administrator receives monthly fees from each Portfolio
            at the annual rate of 0.40% based on the average daily net assets
            attributable in the aggregate to the Portfolio's Class A, Class B
            and Class C shares up to and including $2.5 billion, and .35%
            based on such net assets in excess of $2.5 billion. The Portfolios
            also indirectly pay a proportionate share of the administrative
            fees charged by PIMCO Advisors and Pacific Investment Management
            to the Underlying Funds in which the Portfolios invest. See "Un-
            derlying Fund Expenses" below. The administration and sub-
            administration agreements for the Portfolios may be terminated by
            the Trustees, or by PIMCO Advisors or Pacific Investment Manage-
            ment (as the case may be) on 60 days' written notice. Following
            their initial terms, the agreements will continue from year-to-
            year if approved by the Trustees.
 
 
Underlying  The expenses associated with investing in a "fund of funds," such
Fund        as the Portfolios, are generally higher than those for mutual
Expenses    funds that do not invest primarily in other mutual funds. This is
            because shareholders in a "fund of funds" indirectly pay a portion
            of the fees and expenses charged at the underlying fund level.
               The Trust has structured the Portfolios to reduce expenses in-
            curred at the Underlying Fund level as follows: (a) the Portfolios
            do not pay any fees for asset allocation or advisory services un-
            der the Trust's investment advisory agreement; and (b) the Portfo-
            lios invest in Institutional Class shares of the Underlying Funds,
            which are not subject to any sales charges or 12b-1 fees.
               The table on the following page sets forth annual advisory fee
            and total operating expense information for Institutional Class
            shares of the Underlying Funds. Shareholders of each Portfolio in-
            directly bear a proportionate share of these expenses depending
            upon how the Portfolio's assets are allocated from time to time
            among the Underlying Funds. See "Schedule of Fees."
 
 
42  PIMCO Funds Asset Allocation Series

<PAGE>

<TABLE>
<CAPTION>
                                      Annual Underlying Fund Expenses
                                      (Based on the average daily net assets
                                      attributable to a Fund's Institutional
                                      Class shares):

                                      Advisory Admini-       Total Fund
           Underlying Fund            Fees     strative Fees Operating Expenses
           --------------------------------------------------------------------
           <S>                        <C>      <C>           <C>
           PIMCO Equity Income        0.45%    0.25%         0.70%
           --------------------------------------------------------------------
           PIMCO Renaissance          0.60     0.25          0.85
           --------------------------------------------------------------------
           PIMCO Core Equity          0.57     0.25          0.82
           --------------------------------------------------------------------
           PIMCO Mid-Cap Equity       0.63     0.25          0.88
           --------------------------------------------------------------------
           PIMCO Value                0.45     0.25          0.70
           --------------------------------------------------------------------
           PIMCO Value 25             0.50     0.25          0.75
           --------------------------------------------------------------------
           PIMCO Capital
            Appreciation              0.45     0.25          0.70
           --------------------------------------------------------------------
           PIMCO Mid-Cap Growth       0.45     0.25          0.70
           --------------------------------------------------------------------
           PIMCO Enhanced Equity      0.45     0.25          0.70
           --------------------------------------------------------------------
           PIMCO Tax-Efficient
            Equity                    0.45     0.25          0.70
           --------------------------------------------------------------------
           PIMCO Small-Cap Value      0.60     0.25          0.85
           --------------------------------------------------------------------
           PIMCO Small-Cap Growth     1.00     0.25          1.25
           --------------------------------------------------------------------
           PIMCO Micro-Cap Growth     1.25     0.25          1.50
           --------------------------------------------------------------------
           PIMCO International        0.55     0.50          1.05
           --------------------------------------------------------------------
           PIMCO International
            Growth                    0.85     0.50          1.35
           --------------------------------------------------------------------
           PIMCO Structured Emerging
            Markets                   0.45     0.50          0.95
           --------------------------------------------------------------------
           PIMCO Tax-Efficient
            Structured Emerging
            Markets                   0.45     0.50          0.95
           --------------------------------------------------------------------
           PIMCO Innovation           0.65     0.25          0.90
           --------------------------------------------------------------------
           PIMCO StocksPLUS           0.40     0.25          0.65
           --------------------------------------------------------------------
           PIMCO Money Market         0.15     0.20          0.35
           --------------------------------------------------------------------
           PIMCO Short-Term           0.25     0.20          0.45
           --------------------------------------------------------------------
           PIMCO Low Duration         0.25     0.18          0.43
           --------------------------------------------------------------------
           PIMCO Moderate Duration    0.25     0.20          0.45
           --------------------------------------------------------------------
           PIMCO Real Return Bond     0.25     0.25          0.50
           --------------------------------------------------------------------
           PIMCO Total Return         0.25     0.18          0.43
           --------------------------------------------------------------------
           PIMCO Total Return II      0.25     0.25          0.50
           --------------------------------------------------------------------
           PIMCO High Yield           0.25     0.25          0.50
           --------------------------------------------------------------------
           PIMCO Long-Term U.S.
            Government                0.25     0.25          0.50
           --------------------------------------------------------------------
           PIMCO Global Bond          0.25     0.30          0.55
           --------------------------------------------------------------------
           PIMCO Foreign Bond         0.25     0.25          0.50
           --------------------------------------------------------------------
           PIMCO Emerging Markets
            Bond                      0.45     0.40          0.85
</TABLE>
 
            Description of the Trust
 
Capitalization
            The Trust was organized as a Massachusetts business trust on Au-
            gust 24, 1990, and currently consists of twenty-eight portfolios
            that are operational, three of which are described in this Pro-
            spectus. Other portfolios may be offered by means of a separate
            prospectus. The Board of Trustees may establish additional portfo-
            lios in the future. The capitalization of the Trust consists of an
            unlimited number of shares of beneficial interest. When issued,
            shares of the Trust are fully paid, non-assessable and freely
            transferable.
 
               Under Massachusetts law, shareholders could, under certain cir-
            cumstances, be held liable for the obligations of the Trust. How-
            ever, the Trust's Second Amended and Restated Agreement and Decla-
            ration of Trust (the "Declaration of Trust") disclaims shareholder
            liability for acts or obligations of the Trust and requires that
            notice of such
 

                                                 November 1, 1998 Prospectus  43


<PAGE>
 
            disclaimer be given in each agreement, obligation or instrument
            entered into or executed by the Trust or the Trustees. The Decla-
            ration of Trust also provides for indemnification out of a Portfo-
            lio's property for all loss and expense of any shareholder of that
            Portfolio held liable on account of being or having been a share-
            holder. Thus, the risk of a shareholder incurring financial loss
            on account of shareholder liability is limited to circumstances in
            which such disclaimer is inoperative or the Portfolio of which he
            or she is or was a shareholder is unable to meet its obligations,
            and thus should be considered remote.
 
 
Multiple    Class A, Class B and Class C shares of each Portfolio represent
Classes of  interests in the assets of that Portfolio, and each class has
Shares      identical dividend, liquidation and other rights and the same
            terms and conditions, except that expenses related to the distri-
            bution and shareholder servicing of Class A, Class B and Class C
            shares are borne solely by such class and each class may, at the
            Trustees' discretion, also pay a different share of other ex-
            penses, not including advisory or custodial fees or other expenses
            related to the management of the Trust's assets, if these expenses
            are actually incurred in a different amount by that class, or if
            the class receives services of a different kind or to a different
            degree than the other classes. All other expenses are allocated to
            each class on the basis of the net asset value of that class in
            relation to the net asset value of the particular Portfolio.
 
 
Voting      Each class of shares of each Portfolio has identical voting
            rights, except that each class of shares has exclusive voting
            rights on any matter submitted to shareholders that relates solely
            to that class, and has separate voting rights on any matter sub-
            mitted to shareholders in which the interests of one class differ
            from the interests of any other class. Each class of shares has
            exclusive voting rights with respect to matters pertaining to any
            Distribution and Servicing Plan or agreement applicable only to
            that class. These shares are entitled to vote at meetings of
            shareholders. Matters submitted to shareholder vote must be ap-
            proved by each Portfolio separately except (i) when required by
            the 1940 Act shares shall be voted together and (ii) when the
            Trustees have determined that the matter does not affect all Port-
            folios, then only shareholders of the Portfolio or Portfolios af-
            fected shall be entitled to vote on the matter. All classes of
            shares of a Portfolio will vote together, except with respect to a
            Distribution and Servicing Plan or agreement applicable to a class
            of shares or when a class vote is required as specified above or
            otherwise by the 1940 Act. Shares are freely transferable, are en-
            titled to dividends as declared by the Trustees and, in liquida-
            tion of the Trust, are entitled to receive the net assets of their
            Portfolio, but not of the other Portfolios or other series of the
            Trust. The Trust does not generally hold annual meetings of share-
            holders and will do so only when required by law. Shareholders may
            remove Trustees from office by votes cast in person or by proxy at
            a meeting of shareholders or by written consent. Such a meeting
            will be called at the written request of the holders of 10% of the
            Trust's outstanding shares.
               
               Shares entitle their holders to one vote per share (with pro-
            portionate voting for fractional shares). As used in this Prospec-
            tus, the phrase "vote of a majority of the outstanding shares" of
            a Portfolio (or the Trust) means the vote of the lesser of: (1)
            67% of the shares of the Portfolio (or the Trust) present at a
            meeting, if the holders of more than 50% of the outstanding shares
            are present in person or by proxy; or (2) more than 50% of the
            outstanding shares of the Portfolio (or the Trust).     
 
            Mailings to Shareholders
 
            To reduce the volume of mail shareholders receive, it is antici-
            pated that only one copy of most Trust reports, such as the
            Trust's annual reports, will be mailed to a shareholder's house-
            hold (same surname, same address). A shareholder may call 1-800-
            426-0107 if additional shareholder reports are desired.
 
44   PIMCO Funds Asset Allocation Series

<PAGE>
 
PIMCO FUNDS ASSET ALLOCATION SERIES
Actively managed portfolios of select PIMCO Funds

<TABLE> 
<S>                                 <C>                                         <C> 
Investment Adviser and              Shareholder Servicing Agent                 For further information
Administrator                       and Transfer Agent                          about PIMCO Funds Asset
PIMCO Advisors L.P.                 First Data Invester Services Group, Inc.    Allocation Series, call
800 Newport Center Drive            P.O. Box 9688                               1-800-426-0107 or visit
Newport Beach, CA 92660             Providence, RI 02940                        our Web site at
                                                                                www.pimcofunds.com.
Distributor                         Independent Accountants
PIMCO Funds Distributors LLC        PricewaterhouseCoopers LLP
2187 Atlantic Street                1055 Broadway
Stamford, CT 06902                  Kansas City, MO 64105

Custodian                           Legal Counsel
Investors Fiduciary Trust           Ropes & Gray
Company                             One International Place
801 Pennsylvania                    Boston, MA 02110
Kansas City, MO 64105
</TABLE> 


                                                                           PIMCO
                                                                           -----
                                                                           FUNDS
PZ008.11/98




<PAGE>
 

                      PIMCO FUNDS ASSET ALLOCATION SERIES

                                  PROSPECTUS

               Actively managed portfolios of select PIMCO Funds

Multi-Manager
Series
March [_], 1999
Ins Institutional
Adm Administrative

PIMCO Funds Asset Allocation Series consists of three actively managed mutual
funds that invest in a diversified portfolio of PIMCO Funds. In addition to
broad diversification, each Portfolio provides access to the extensive asset
allocation and investment management capabilities of PIMCO Advisors L.P. and its
affiliates.

<TABLE> 
<CAPTION> 
90/10 Portfolio                      60/40 Portfolio               30/70 Portfolio 
<S>                                  <C>                           <C> 
Seeks long-term capital              Seeks long-term capital       Seeks current income, with  
appreciation. The Portfolio          appreciation and current      long-term capital
normally invests approximately       income. The Portfolio         appreciation as a secondary
90% of its assets                    normally invests              objective. The Portfolio
in PIMCO Stock Funds                 approximately 60% of its      normally invests
and 10% in PIMCO                     assets in PIMCO Stock         approximately 30% of its
Bond Funds.                          Funds and 40% in PIMCO        assets in PIMCO Stock
                                     Bond Funds.                   Funds and 70% in PIMCO
                                                                   Bond Funds.
</TABLE> 


                                                                           PIMCO
                                                                           -----
                                                                           FUNDS



<PAGE>
 
          PIMCO Funds: Multi-Manager Series
          Prospectus
          March [ ], 1999
 
          PIMCO Funds Asset Allocation Series
 
90/10 Portfolio
60/40 Portfolio
30/70 Portfolio

          PIMCO Funds: Multi-Manager Series (the "Trust"), formerly PIMCO
          Funds: Equity Advisors Series, is an open-end series management
          investment company ("mutual fund"). This Prospectus describes three
          diversified investment portfolios (each a "Portfolio") of the Trust.
          Each Portfolio has its own investment objective and policies. The
          Portfolios are professionally-managed series of the Trust designed
          to take advantage of the benefits of asset allocation. Each
          Portfolio seeks to achieve its particular investment objective by
          investing within specified equity and fixed income ranges among a
          number of other mutual funds in the PIMCO Funds family ("Underlying
          Funds" or "Funds").
 
          PIMCO Advisors L.P. ("PIMCO Advisors" or the "Adviser") serves as
          investment adviser to the Portfolios and determines how the assets
          of each Portfolio are allocated among the Underlying Funds. PIMCO
          Advisors and its affiliates also provide advisory services to the
          Underlying Funds. See "Management of the Portfolios."
 
          This Prospectus describes two classes of shares offered by each
          Portfolio: the "Institutional Class" and the "Administrative Class."
          Through a separate prospectus, each Portfolio also offers three
          additional classes of shares, Class A, Class B and Class C shares.
          See "Other Information--Multiple Classes of Shares."
 
          This Prospectus sets forth concisely the information a prospective
          investor should know before investing in the Portfolios. It should
          be read and retained for ready reference to information about the
          Portfolios. Information about the investment objective of each
          Portfolio, and of the investment policies and restrictions
          applicable to each Portfolio, are set forth in this Prospectus.
          There can be no assurance that the investment objective of any
          Portfolio will be achieved. Because the market value of each
          Portfolio's investments will change, the investment returns and net
          asset value per share of each Portfolio will vary.
 
          A Statement of Additional Information, dated [     ], and as further
          amended or supplemented from time to time, is available without
          charge as specified below. In addition, a Trust Prospectus dated
          November 1, 1998 and a Prospectus of PIMCO Funds: Pacific Investment
          Management Series dated November 25, 1998, each as amended or
          supplemented from time to time (together, the "Underlying Fund
          Prospectuses"), relating to Institutional Class shares of the
          Underlying Funds, are available without charge. The Statement of
          Additional Information and the Underlying Fund Prospectuses, which
          contain more detailed information about the Trust, the Portfolios
          and/or the Underlying Funds, have each been filed with the
          Securities and Exchange Commission and are incorporated by reference
          in this Prospectus. The Securities and Exchange Commission maintains
          an Internet World Wide Web site (at www.sec.gov) which contains the
          Statement of Additional Information and materials that are
          incorporated by reference into this Prospectus and the Statement of
          Additional Information, the Underlying Fund Prospectuses, and other
          information about the Trust, the Portfolios and the Underlying
          Funds. The Statement of Additional Information and the Underlying
          Fund Prospectuses are available without charge and may be obtained
          by writing or calling:
 
                             PIMCO Funds
                             840 Newport Center Drive, Suite 300
                             Newport Beach, CA 92660
                             Telephone: 1-800-927-4648
                                    1-800-987-4626 (PIMCO Infolink Audio
                                             Response Network).
 
          These securities have not been approved or disapproved by the
          Securities and Exchange Commission or any state securities
          commission, nor has the Securities and Exchange Commission or any
          state securities commission passed upon the accuracy or adequacy of
          this Prospectus. Any representation to the contrary is a criminal
          offense.
 
          Shares of the Portfolios are not deposits or obligations of, or
          guaranteed or endorsed by, any financial institution, and the shares
          are not federally insured by the Federal Deposit Insurance
          Corporation, the Federal Reserve Board, or any other agency, and
          involve risk, including the possible loss of principal.
 
2 PIMCO Funds: Multi-Manager Series
<PAGE>
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
   <S>                                                                      <C>
   Prospectus Summary......................................................   4
   Expense Information.....................................................   7
   Investment Objectives and Policies......................................   9
   Underlying Funds........................................................  14
   Management of the Portfolios............................................  21
   Purchase of Shares......................................................  28
   Redemption of Shares....................................................  31
   Net Asset Value.........................................................  33
   Dividends, Distributions and Taxes......................................  33
   Other Information.......................................................  34
</TABLE>
                                                                   Prospectus 3
<PAGE>
 
                               PROSPECTUS SUMMARY
 
  PIMCO Funds: Multi-Manager Series (the "Trust") is an open-end series
management investment company organized as a Massachusetts business trust on
August 24, 1990. This Prospectus describes three separate diversified
investment portfolios (the "Portfolios") offered by the Trust, PIMCO Funds
Asset Allocation Series--90/10 Portfolio (the "90/10 Portfolio"), PIMCO Funds
Asset Allocation Series--60/40 Portfolio (the "60/40 Portfolio") and PIMCO
Funds Asset Allocation Series--30/70 Portfolio (the "30/70 Portfolio").
 
  The Portfolios are intended for investors who prefer to have their asset
allocation decisions made by professional money managers. Each Portfolio has a
distinct investment objective which it seeks to achieve by investing within
specified equity and fixed income ranges among certain series ("Underlying
Funds" or "Funds") of the Trust and PIMCO Funds: Pacific Investment Management
Series. PIMCO Advisors serves as investment adviser for each Fund of the Trust
and its affiliate, Pacific Investment Management Company ("Pacific Investment
Management"), serves as investment adviser for each Fund of PIMCO Funds:
Pacific Investment Management Series. Some of the Underlying Funds invest
primarily in equity securities ("Underlying Stock Funds"); other Funds invest
primarily in fixed income securities, including money market instruments
("Underlying Bond Funds"). The Portfolios are named in accordance with their
equity/fixed income allocation targets. For instance, the 90/10 Portfolio will
normally invest approximately 90% of its assets in Underlying Stock Funds and
10% of its assets in Underlying Bond Funds. The following summarizes certain
key information relating to the Portfolios and is qualified in its entirety by
the more detailed information contained elsewhere in this Prospectus.
 
                               Portfolio Profiles
 
<TABLE>
<CAPTION>
 PIMCO Funds
 Asset Allocation Series Investment Objective                              Allocation Strategy
- ---------------------------------------------------------------------------------------------------
 <C>                     <C>                                               <S>
 90/10 Portfolio         Long-term capital appreciation                    Under normal conditions,
                                                                           approximately 90% of the
                                                                           Portfolio's assets will
                                                                           be allocated among
                                                                           Underlying Stock Funds
                                                                           and 10% among Underlying
                                                                           Bond Funds.
- ---------------------------------------------------------------------------------------------------
 60/40 Portfolio         Long-term capital appreciation                    Under normal conditions,
                         and current income                                approximately 60% of the
                                                                           Portfolio's assets will
                                                                           be allocated among
                                                                           Underlying Stock Funds
                                                                           and 40% among Underlying
                                                                           Bond Funds.
- ---------------------------------------------------------------------------------------------------
 30/70 Portfolio         Current income, with long-term                    Under normal conditions,
                         capital appreciation as a secondary objective     approximately 30% of the
                                                                           Portfolio's assets will
                                                                           be allocated among
                                                                           Underlying Stock Funds
                                                                           and 70% among Underlying
                                                                           Bond Funds.
</TABLE>
 
                      Investment Risks and Considerations
 
  The Underlying Funds have different investment objectives and policies and
different degrees of potential investment risk and reward. Based on the
allocation strategies listed above, an investor should choose among the
Portfolios based on personal objectives, investment time horizon, tolerance for
risk and personal financial circumstances. For example, because the 90/10
Portfolio will normally invest approximately 90% of its assets in Underlying
Stock Funds, this Portfolio might be suitable for an investor with a relatively
long time horizon who seeks long-term capital appreciation potential and has a
fairly high tolerance for risk and volatility. An investor with a shorter time
horizon who seeks a balance of income and long-term capital appreciation and
has less tolerance for risk and volatility might choose the 60/40 Portfolio,
which invests in a fairly balanced portfolio of Underlying Stock and Bond
Funds. An investor who seeks a higher level of current income combined with
some potential for long-term capital appreciation and has a lower tolerance for
risk and volatility might choose the 30/70 Portfolio, which will normally
invest approximately 70% of its assets in Underlying Bond Funds. While each
Portfolio provides a relatively high level of diversification in comparison

4 PIMCO Funds: Multi-Manager Series

<PAGE>
 
                         PROSPECTUS SUMMARY (continued)

to most mutual funds, a single Portfolio may not be suitable as a complete
investment program. For a more complete description of the investment
objectives and policies of the Portfolios, please see "Investment Objectives
and Policies."
 
  Because each Portfolio will invest all of its assets in the Underlying Funds,
each Portfolio's investment performance is directly related to the investment
performance of the Underlying Funds in which it invests. The ability of a
Portfolio to realize its investment objective will depend upon the extent to
which the Underlying Funds realize their objectives. The value of the
Underlying Funds' investments, and the net asset values of the shares of both
the Underlying Funds and the Portfolios, will fluctuate in response to changes
in market and economic conditions, as well as the financial condition and
prospects of issuers in which the Underlying Funds invest.
 
  The possible use of certain investment techniques by an Underlying Fund,
including various derivative instruments such as futures contracts, options and
swap agreements, will subject the Fund to greater risk than Funds that do not
employ such techniques. In addition, investments by certain Underlying Funds in
small market capitalization companies, foreign issuers (including emerging
market issuers) and foreign currencies, illiquid securities and other
instruments will expose those Funds to a higher degree of risk and price
volatility. Some Underlying Funds may also invest in fixed income securities
rated below investment grade (commonly referred to as "high yield" securities
or "junk" bonds), which are considered to be speculative by traditional
investment standards. Each Portfolio may be subject to these and other risks
associated with investments in the Underlying Funds depending upon the
Portfolio's asset allocation strategy. For a description of the various risks
associated with the Portfolios and the Underlying Funds, see "Investment
Objectives and Policies" and "Underlying Funds" in this Prospectus, "Investment
Objectives and Policies" in the Statement of Additional Information and
"Characteristics and Risks of Securities and Investment Techniques" in the
Underlying Fund Prospectuses, which are incorporated herein by reference and
are available free of charge by telephoning the Trust at 1-800-927-4648.
 
  Potential investors in the Portfolios should realize that they may invest
directly in the Underlying Funds and make their own asset allocation decisions.
By investing in a Portfolio, an investor will incur not only a proportionate
share of the expenses of the Portfolio but also a portion of the expenses of
the Underlying Funds in which the Portfolio invests (including investment
advisory and administrative fees charged at the Underlying Fund level).  See
"Expense Information" and "Management of the Portfolios--Underlying Fund
Expenses."
 
                               Purchase of Shares
 
  This Prospectus describes two classes of shares of each Portfolio: the
"Institutional Class" and the "Administrative Class." Shares of the
Institutional Class are offered primarily for direct investment by
institutional investors (Institutional Class shares may also be offered through
certain financial intermediaries that charge their customers transaction or
other fees with respect to the customers' investments in the Portfolios).
Shares of the Administrative Class are offered primarily through employee
benefit plan alliances, broker-dealers and other intermediaries. Each Portfolio
pays service and/or distribution fees to such entities for services they
provide to such Portfolio's shareholders of that class.
 
  Shares of the Institutional Class and Administrative Class of the Portfolios
are offered at the relevant next determined net asset value with no sales
charge or other fee. The minimum initial investment for shares of either class
is $5 million, subject to certain exceptions described under "Purchase of
Shares." Shares of either class may also be offered to clients of the Adviser
and its affiliates.
                                                                Prospectus 5
<PAGE>
 
                         PROSPECTUS SUMMARY (continued)
 
                           Redemptions and Exchanges
 
  Institutional Class and Administrative Class shares of each Portfolio may be
redeemed without cost at the relevant net asset value per share of the class of
that Portfolio next determined after receipt of the redemption request. The
redemption price may be more or less than the purchase price.
 
  Institutional Class and Administrative Class shares of any Portfolio may be
exchanged without cost on the basis of relative net asset values for shares of
the same class of any other Portfolio or other series of the Trust offered
generally to the public, or for shares of the same class of a series of PIMCO
Funds: Pacific Investment Management Series. See "Redemption of Shares."
 
6 PIMCO Funds: Multi-Manager Series

<PAGE>
 
                              EXPENSE INFORMATION
 
  Expenses are one of several factors to consider when investing in
Institutional Class or Administrative Class shares of the Portfolios. The
following tables and Examples summarize the expenses of each Portfolio that are
borne by its Institutional Class and Administrative Class shareholders based on
estimated expenses for the Portfolio's current fiscal year.
 
  You should bear in mind that shareholders of each Portfolio bear indirectly
the expenses of the Underlying Funds in which the Portfolio invests. The
Portfolios will invest only in Institutional Class shares of the Underlying
Funds and will not pay any sales charges or 12b-1 fees in connection with their
investments in the Underlying Funds. The Portfolios will, however, indirectly
bear their pro rata share of the fees and expenses (including advisory and
administrative fees) incurred by the Underlying Funds that are borne by all
Institutional Class shareholders. Because the Underlying Funds have varied fee
and expense levels and the Portfolios will own different proportions of the
Underlying Funds at different times, the actual fees and expenses indirectly
incurred by the Portfolios will vary.
 
Shareholder Transaction Expenses (Institutional Class and Administrative
Class):
 
<TABLE>
<S>                                                                         <C>
  Sales Load Imposed on Purchases.......................................... None
  Sales Load Imposed on Reinvested Dividends............................... None
  Redemption Fee........................................................... None
  Exchange Fee............................................................. None
  Fund Reimbursement Fee Imposed on Purchases, Redemptions and Exchanges... None
</TABLE>
 
Annual Portfolio Operating Expenses (as a percentage of average daily net
assets):
 
<TABLE>
<CAPTION>
                                                           Underlying
                                   Advisory Administrative    Fund     Total
   Institutional Class Shares        Fee         Fee       Expenses*  Expenses
   --------------------------      -------- -------------- ---------- --------
   <S>                             <C>      <C>            <C>        <C>
   90/10 Portfolio................   None        [  ]%        0.79%     [  ]%
   60/40 Portfolio................   None        [  ]         0.67      [  ]
   30/70 Portfolio................   None        [  ]         0.55      [  ]
</TABLE>
 
<TABLE>
<CAPTION>
                                                    Service/ Underlying
   Administrative Class     Advisory Administrative  12b-1      Fund     Total
   Shares                     Fee         Fee         Fee    Expenses*  Expenses
   --------------------     -------- -------------- -------- ---------- --------
   <S>                      <C>      <C>            <C>      <C>        <C>
   90/10 Portfolio.........   None        [  ]%       0.25%     0.79%     [  ]%
   60/40 Portfolio.........   None        [  ]        0.25      0.67      [  ]
   30/70 Portfolio.........   None        [  ]        0.25      0.55      [  ]
</TABLE>
 
  * Based on estimated expenses for the current fiscal year. Underlying Fund
  Expenses for each Portfolio are estimated based upon the initial allocation
  of each Portfolio's assets among the Underlying Funds and upon the total
  annual operating expenses of each Underlying Fund. For a listing of the
  expenses associated with each Underlying Fund, please see "Management of
  the Portfolios--Underlying Fund Expenses." Total Portfolio Operating
  Expenses and the Examples set forth on the next page are based on estimates
  of the Underlying Fund Expenses each Portfolio will incur. Actual
  Underlying Fund Expenses for each Portfolio are expected to vary with
  changes in the allocation of the Portfolio's assets, and may be higher or
  lower than those shown above.
 
  For a more detailed discussion of the Portfolios' fees and expenses, see
"Fund Administrator," "Advisory Fees," "Administrative Fees," "Underlying Fund
Expenses" and "Service and Distribution Fees" under the caption "Management of
the Portfolios."

                                                                Prospectus 7
<PAGE>
 
                        EXPENSE INFORMATION (continued)
 
Example of Portfolio Expenses:
 
  An investor would pay the following expenses on a $1,000 investment assuming
(1) a hypothetical 5% annual return and (2) redemption at the end of each time
period:
 
<TABLE>
<CAPTION>
   Institutional Class Shares                                     1 year 3 years
   --------------------------                                     ------ -------
   <S>                                                            <C>    <C>
   90/10 Portfolio...............................................  $       $
   60/40 Portfolio...............................................
   30/70 Portfolio...............................................
<CAPTION>
   Administrative Class Shares                                    1 year 3 years
   ---------------------------                                    ------ -------
   <S>                                                            <C>    <C>
   90/10 Portfolio...............................................   $       $
   60/40 Portfolio...............................................
   30/70 Portfolio...............................................
</TABLE>
 
  The above tables are provided to assist investors in understanding the
various expenses which may be borne directly or indirectly in connection with
an investment in the Portfolios. These examples should not be considered a
representation of past or future expenses or performance. Actual expenses may
be higher or lower than those shown.
 
8 PIMCO Funds: Multi-Manager Series
<PAGE>
 
                      INVESTMENT OBJECTIVES AND POLICIES
 
  The investment objective and general investment policies of each Portfolio
are described below. There can be no assurance that the investment objective
of any Portfolio will be achieved. Because the market value of each
Portfolio's investments will change, the net asset value per share of each
Portfolio will also vary.
 
  The Portfolios are intended for investors who prefer to have their asset
allocation decisions made by professional money managers. Each Portfolio seeks
to achieve its investment objective by investing within specified equity and
fixed income ranges among the Underlying Funds. Each Underlying Fund is a
series of the Trust or PIMCO Funds: Pacific Investment Management Series and
is managed by PIMCO Advisors and/or its affiliates. The Portfolios have
different investment objectives and policies and degrees of potential
investment risk and reward depending upon their allocation strategies. An
investor should choose a Portfolio based on personal objectives, investment
time horizon, tolerance for risk and personal financial circumstances.
 
Portfolio Descriptions
 
  90/10 Portfolio seeks long-term capital appreciation. Under normal
conditions, approximately 90% of the Portfolio's assets will be allocated
among Underlying Stock Funds and 10% among Underlying Bond Funds.
 
  60/40 Portfolio seeks long-term capital appreciation and current income.
Under normal conditions, approximately 60% of the Portfolio's assets will be
allocated among Underlying Stock Funds and 40% among Underlying Bond Funds.
 
  30/70 Portfolio seeks current income. Long-term capital appreciation is a
secondary objective. Under normal conditions, approximately 30% of the
Portfolio's assets will be allocated among Underlying Stock Funds and 70%
among Underlying Bond Funds.
 
  Unless otherwise noted, each Portfolio's investment objective and its
restrictions and policies relating to the investment of its assets are non-
fundamental and may be changed without shareholder approval.
 
  PIMCO Advisors serves as the investment adviser to the Portfolios and
determines how each Portfolio's assets are allocated among the Underlying
Funds. Each Portfolio invests in particular Underlying Funds (which may differ
from time to time) based on various criteria observed by PIMCO Advisors. Among
other things, PIMCO Advisors analyses the various investment objectives,
policies and strategies of the Underlying Funds to determine which Funds, in
combination with others, are appropriate in light of a Portfolio's investment
objective. PIMCO Advisors then makes allocation decisions among these
Underlying Funds in an attempt to achieve the Portfolio's objective. The table
on the next page illustrates the estimated equity and fixed income allocation
targets and typical ranges for each Portfolio under normal market conditions.
 
                                                                  Prospectus 9
<PAGE>
 
Equity and Fixed Income Ranges
(as a percentage of each Portfolio's average net assets)
 
<TABLE>
<CAPTION>
                                                    Typical
PIMCO Funds                              Target     Allocation
Asset Allocation Series                  Allocation Range*
- --------------------------------------------------------------
<S>                                      <C>        <C>
90/10 Portfolio
 Equity                                  90%        80% - 100%
 Fixed Income (including money market**) 10%         0% -  20%
- --------------------------------------------------------------
60/40 Portfolio
 Equity                                  60%        50% -  70%
 Fixed Income (including money market**) 40%        30% -  50%
- --------------------------------------------------------------
30/70 Portfolio
 Equity                                  30%        25% -  35%
 Fixed Income (including money market**) 70%        65% -  75%
</TABLE>
 
 * Each Portfolio may temporarily deviate from its asset allocation range for
   defensive purposes.
** Each Portfolio may hold a portion of its assets in PIMCO Money Market Fund,
   in part, so that it can readily sell the securities and have cash available
   to pay Portfolio expenses without incurring capital gains.
 
  Each Portfolio is authorized to invest in any or all of the Underlying
Funds. However, it is expected that a Portfolio will invest in only some of
the Underlying Funds at any particular time. A Portfolio's investment in a
particular Underlying Fund may and in some cases is expected to exceed 25% of
its total assets. To the extent that a Portfolio invests a significant portion
of its assets in an Underlying Fund, it will be particularly sensitive to the
risks associated with that Fund. Please see "Underlying Funds" and "Principal
Risks of the Underlying Funds" below for a description of the Underlying Funds
and their attendant risks. The particular Underlying Funds in which each
Portfolio may invest, the equity and fixed income allocation targets and
ranges specified above, and the percentage of each Portfolio's assets invested
from time to time in any Underlying Fund or combination of Funds may be
changed from time to time without the approval of the Portfolio's
shareholders.
 
  Each Portfolio's net asset value will fluctuate in response to changes in
the net asset values of the Underlying Funds in which it invests. Each
Portfolio will invest all of its assets in Underlying Funds, and may invest up
to 100% of its assets in PIMCO Money Market Fund (and thereby deviate from its
asset allocation range) for temporary defensive purposes. A Portfolio may also
borrow money for temporary or emergency purposes.
 
  Each Portfolio is also subject to certain investment restrictions that are
described under "Investment Restrictions" in the Statement of Additional
Information.
 
Overview of Asset Allocation
 
  PIMCO Advisors' Asset Allocation Committee determines how the Portfolios'
assets are allocated and reallocated from time to time among the Underlying
Funds. The individuals who constitute the Asset Allocation Committee and are
primarily responsible for making asset allocation and other investment
decisions for the Portfolios are William D. Cvengros, Timothy R. Clark, Robert
S. Venable and David Young. Please see "Management of the Portfolios" for a
description of PIMCO Advisors and the individuals on the Asset Allocation
Committee.
 
  PIMCO Advisors' approach to asset allocation encompasses both quantitative
and qualitative processes designed to allocate the Portfolios' assets among
multiple Underlying Funds in order to achieve broadly diversified Portfolios.
The Asset Allocation Committee meets regularly to analyze various economic and
market data. The Committee also collects and synthesizes multiple proprietary
models maintained by the Portfolio Managers of the Underlying Funds. See
 
10 PIMCO Funds: Multi-Manager Series
<PAGE>
 
"Management of the Portfolios--Portfolio Managers for the Underlying Funds."
These models are quantitatively compiled by the Committee to provide a
framework for developing PIMCO Advisors' allocation strategies with respect to
the major asset classes and sub-classes held by the Underlying Funds.
 
  The resulting framework assists the Asset Allocation Committee in the
following ways: (1) it identifies the desired tactical allocation ranges for
the Portfolios around long-term strategic broad asset class and sub-class
targets, (2) it identifies individual Funds among the Underlying Funds that
are expected to provide consistent, quality performance in the various asset
classes and sub-classes identified for the Portfolios and (3) it is used by
the Committee in its on-going evaluation of the equity and fixed income
markets in an attempt to identify and implement value-added tactical shifts
for the Portfolios. These tactical shifts and resulting reallocations of
Portfolio assets are not expected to be large or frequent in nature, and
should result in modest levels of portfolio turnover for the Portfolios. See
"Portfolio Turnover."
 
Equity Portion of the Portfolios
 
  The equity portion of each Portfolio will be allocated among a number of
Underlying Stock Funds which provide a broad range of equity-based investment
objectives and strategies. By allocating assets among these Funds, the equity
portions of the Portfolios can be diversified in multiple ways, including the
following:
 
  By Region
  [ ] U.S. Equities
  [ ] International Developed Markets Equities
  [ ] International Emerging Markets Equities
 
  By Investment Style
 
  [ ] Blend (Broad Market)
  [ ] Value
  [ ] Growth
 
  By Size
 
  [ ] Large-Cap
  [ ] Mid-Cap
  [ ] Small-Cap
 
  For a description of the Underlying Stock Funds and their investment
objectives and strategies, please see "Underlying Funds." The Portfolio
Managers for the Underlying Stock Funds each have different investment
philosophies and processes which are reflected in the Funds they manage.
Through asset allocation, PIMCO Advisors can take advantage of the expertise
of each Portfolio Manager and combine the investment styles set forth above in
providing broadly diversified Portfolios. For a description of each Portfolio
Manager and its particular investment philosophy and process, please see
"Management of the Portfolios--Portfolio Managers for the Underlying Funds."
 
                                                                 Prospectus 11
<PAGE>
 
Fixed Income Portion of the Portfolios
 
  The fixed income portion of each Portfolio will be allocated among a number
of Underlying Bond Funds which provide a broad range of fixed income-based
investment objectives and strategies. By allocating assets among these Funds,
the fixed income portions of the Portfolios can be diversified in multiple
ways, including the following:
 
  By Region
 
  [ ] U.S. Fixed Income
  [ ] Foreign Fixed Income
 
  By Sector/Investment Specialty
 
  [ ] Governments
  [ ] Mortgages
  [ ] Corporate
  [ ] Inflation-Indexed
 
  By Credit Quality
 
  [ ] Investment Grade/Money Market
  [ ] Medium Grade
  [ ] High Yield
 
  By Duration
 
  [ ] Long-Term
  [ ] Intermediate-Term
  [ ] Short-Term
 
  For a description of the Underlying Bond Funds and their investment
objectives and strategies, please see "Underlying Funds." Pacific Investment
Management is the investment adviser and Portfolio Manager for each Underlying
Bond Fund. Through asset allocation, PIMCO Advisors can take advantage of the
broad fixed income expertise of Pacific Investment Management and combine the
investment styles set forth above in providing broadly diversified Portfolios.
For a description of Pacific Investment Management and its investment
philosophy and process, please see "Management of the Portfolios--Portfolio
Managers for the Underlying Funds."
 
Potential Conflicts of Interest
 
  As described above, PIMCO Advisors has broad discretion to allocate and
reallocate the Portfolios' assets among the Underlying Funds, consistent with
the Portfolios' investment objectives and policies and the asset allocation
ranges specified above. Although PIMCO Advisors does not charge an investment
advisory fee for its asset allocation services, PIMCO Advisors and its
affiliates indirectly receive fees (including investment advisory and
administrative fees) from the Underlying Funds in which the Portfolios invest.
In this regard, PIMCO Advisors has a financial incentive to invest a
Portfolio's assets in Underlying Funds with higher fees than other Funds, even
if it believes that alternate investments would better serve the Portfolio's
investment program. PIMCO Advisors is legally obligated to disregard that
incentive in making asset allocation decisions for the Portfolios. The
Trustees and officers of the Trust may also have conflicting interests in
fulfilling their fiduciary duties to both the Portfolios and the Underlying
Funds.
 
 
12 PIMCO Funds: Multi-Manager Series
<PAGE>
 
General Risks of Investing in the Portfolios
 
  Because the Portfolios invest all of their assets in the Underlying Funds,
the risks associated with investing in the Portfolios are closely related to
the risks associated with the securities held by the Underlying Funds. The
ability of a Portfolio to achieve its investment objective will depend upon
the ability of the Underlying Funds to achieve their objectives. Of course,
the extent to which the investment performance and risks associated with a
particular Portfolio correlate to those of a particular Underlying Fund will
depend upon the extent to which the Portfolio's assets are allocated from time
to time for investment in the Underlying Fund. For a description of the
principal risks associated with investments in the Underlying Funds, please
see "Underlying Funds--Principal Risks of the Underlying Funds" in this
Prospectus, "Investment Objectives and Policies" in the Statement of
Additional Information and "Characteristics and Risks of Securities and
Investment Techniques" in the Underlying Fund Prospectuses, which are
incorporated herein by reference and are available free of charge by
telephoning the Trust at 1-800-927-4648.
 
Portfolio Turnover
 
  A change in the securities held by a Portfolio is known as "portfolio
turnover." Because PIMCO Advisors does not expect to reallocate the
Portfolios' assets among the Underlying Funds on a frequent basis, the
portfolio turnover rates for the Portfolios are expected to be modest (i.e.,
less than 25%) in comparison to most mutual funds. However, the Portfolios'
indirectly bear the expenses associated with portfolio turnover of the
Underlying Funds, a number of which have fairly high portfolio turnover rates
(i.e., in excess of 100%). High portfolio turnover involves correspondingly
greater expenses to an Underlying Fund, including brokerage commissions or
dealer mark-ups and other transaction costs on the sale of securities and
reinvestments in other securities. Shareholders in the Portfolios may also
bear expenses directly or indirectly through sales of securities held by the
Portfolios and the Underlying Funds which result in realization of ordinary
income or taxable capital gains (including short-term capital gains which are
generally taxed at ordinary income tax rates). See "Dividends, Distributions
and Taxes."
 
Service Systems--Year 2000 Problem
 
  Many of the services provided to the Portfolios depend on the smooth
functioning of computer systems. Many systems in use today cannot distinguish
between the year 1900 and the year 2000. Should any of the service systems
fail to process information properly, that could have an adverse impact on the
Portfolios' operations and services provided to shareholders. The Adviser,
Distributor, Shareholder Servicing and Transfer Agent, Custodian and certain
other service providers to the Portfolios have reported that each is working
toward mitigating the risks associated with the so-called "year 2000 problem."
However, there can be no assurance that the problem will be corrected in all
respects and that the Portfolios' operations and services provided to
shareholders will not be adversely affected, nor can there be any assurance
that the year 2000 problem will not have an adverse effect on the entities
whose securities are held by the Underlying Funds or on domestic or global
equity markets or economies, generally.
 
"Fundamental" Policies
 
  The investment objective of each Portfolio described in this Prospectus may
be changed by the Board of Trustees without shareholder approval. If there is
a change in a Portfolio's investment objective, shareholders should consider
whether the Portfolio remains an appropriate investment in light of their then
current financial positions and needs.

                                                                 Prospectus 13
<PAGE>
 
                               UNDERLYING FUNDS
 
  Each Portfolio invests all of its assets in Underlying Funds. Accordingly,
each Portfolio's investment performance depends upon a favorable allocation
among the Underlying Funds as well as the ability of the Underlying Funds to
meet their objectives. There can be no assurance that the investment objective
of any Underlying Fund will be achieved. Shares of the Underlying Funds are
not offered in this Prospectus.
 
Portfolio Managers
 
  PIMCO Advisors serves as investment adviser for each of the Underlying Stock
Funds and its affiliates serve as sub-advisers, except that another affiliate,
Pacific Investment Management, is the sole investment adviser to PIMCO
StocksPLUS Fund. Under these arrangements, the sub-advisers and Pacific
Investment Management (referred to collectively as "Portfolio Managers") have
full investment discretion and make all determinations with respect to the
investment of the assets of these Funds. Pacific Investment Management is also
the sole investment adviser to each Underlying Bond Fund. The Portfolio
Managers and their investment specialties are listed below.
 
<TABLE>
<CAPTION>
 Portfolio Manager                                   Investment Specialty
- -------------------------------------------------------------------------------
 <C>                                                 <S>
 Pacific Investment Management                       All sectors of the bond
                                                     market using its total
                                                     return philosophy--seeking
                                                     both yield and capital
                                                     appreciation
                                                     --------------------------
 Cadence Capital Management ("Cadence")              Stocks of growth companies
                                                     that the Portfolio Manager
                                                     believes are trading at a
                                                     reasonable price
                                                     --------------------------
 Columbus Circle Investors ("Columbus Circle") (/1/) Stocks, using its
                                                     "Positive Momentum &
                                                     Positive Surprise"
                                                     discipline
                                                     --------------------------
 NFJ Investment Group ("NFJ")                        Value stocks that the
                                                     Portfolio Manager believes
                                                     are undervalued and/or
                                                     offer above-average
                                                     dividend yields
                                                     --------------------------
 Blairlogie Capital Management ("Blairlogie") (/2/)  International stocks using
                                                     Scottish standards of
                                                     prudent investment
                                                     management with modern
                                                     quantitative analytical
                                                     tools
                                                     --------------------------
 Parametric Portfolio Associates ("Parametric")      Stocks, using
                                                     quantitatively-driven
                                                     fundamental analysis and
                                                     economic methods, with
                                                     specialties in emerging
                                                     markets and tax-efficient
                                                     products
</TABLE>
 
1. On or about March 5, 1999, PIMCO Advisors will assume full portfolio
   management responsibility for PIMCO Innovation Fund, an Underlying Stock
   Fund currently managed by Columbus Circle. See "Management of the
   Portfolios--Portfolio Managers for the Underlying Funds--Columbus Circle."
2. On or about March 31, 1999, it is anticipated that PIMCO Advisors will sell
   substantially all of its ownership interest in Blairlogie. See "Management
   of the Portfolios--Portfolio Managers for the Underlying Funds--
   Blairlogie."
 
14 PIMCO Funds: Multi-Manager Series
<PAGE>

Underlying Stock Funds
 
  The following provides a concise description of the investment objective and 
primary investments of each Underlying Stock Fund and lists the Fund's 
Portfolio Manager. For a complete description of these Funds, please see the 
Underlying Fund Prospectuses, which are incorporated herein by reference and 
are available free of charge by telephoning the Trust at 1-800-927-4648. 
<TABLE> 
<CAPTION> 
                                                                                                                      Portfolio 
              Fund Name             Investment Objective                    Primary Investments                       Manager   
- ------------------------------------------------------------------------------------------------------------------------------------
<S>           <C>                   <C>                                     <C>                                       <C> 
Stock Funds   PIMCO Equity Income   Current income as a primary objective;  Common stocks with below-average price    NFJ 
                                    long-term growth of capital as a        to ratios and higher dividend yields     
                                    secondary earnings objective            relative to their industry groups
              ----------------------------------------------------------------------------------------------------------------------
              PIMCO Renaissance     Long-term growth of capital             Common stocks with below-average          Columbus    
                                    and income                              valuations that have improving            Circle     
                                                                            business fundamentals 
              ----------------------------------------------------------------------------------------------------------------------
              PIMCO Core Equity     Long-term growth of capital; income     Common stocks of companies with market    Columbus 
                                    as a secondary objective                capitalizations in excess of $3 billion   Circle     
              ----------------------------------------------------------------------------------------------------------------------
              PIMCO Mid-Cap Equity  Long-term growth of capital             Common stocks of companies with market    Columbus 
                                                                            capitalizations between $800 million and  Circle 
                                                                            $3 billion                                
              ----------------------------------------------------------------------------------------------------------------------
              PIMCO Value           Long-term growth of capital             Common stocks with below-average price to  NFJ 
                                    and income                              earnings ratios relative to their 
                                                                            industry groups
              ----------------------------------------------------------------------------------------------------------------------
              PIMCO Value 25        Long-term growth of capital             Approximately 25 common stocks of          NFJ
                                    and income                              companies with medium market 
                                                                            capitalizations and below-average price 
                                                                            to earnings ratios relative to their 
                                                                            industry groups   
              ----------------------------------------------------------------------------------------------------------------------
              PIMCO Capital         Growth of capital                       Common stocks of companies with market     Cadence 
              Appreciation                                                  capitalizations of at least $1 billion 
                                                                            that have improving fundamentals and whose 
                                                                            stock is reasonably valued by the market   
              ----------------------------------------------------------------------------------------------------------------------
              PIMCO Mid-Cap         Growth of capital                       Common stocks of companies with market     Cadence    
              Growth                                                        capitalizations in excess of $500 million 
                                                                            that have improving fundamentals and whose  
                                                                            stock is reasonably valued by the market           
              ----------------------------------------------------------------------------------------------------------------------
              PIMCO Enhanced        Total return which equals or exceeds    Common stocks represented in the S&P 500   Parametric 
              Equity                the total return performance of an 
                                    index representing the performance       
                                    of a reasonably broad spectrum of     
                                    common stocks (currently the S&P 500 (1))                                        
              ----------------------------------------------------------------------------------------------------------------------
              PIMCO Tax-Efficient   Maximum after-tax growth of capital     A broadly diversified portfolio of at      Parametric 
              Equity                                                        least 200 common stocks of companies 
                                                                            with larger market capitalizations         
- ------------------------------------------------------------------------------------------------------------------------------------
Aggressive    PIMCO Small-Cap       Long-term growth of capital and         Common stocks of companies with market     NFJ 
Stock Funds   Value                 income                                  capitalizations between $50 million and $1     
                                                                            billion and below-average price to earnings    
                                                                            ratios relative to their industry groups       
              ----------------------------------------------------------------------------------------------------------------------
              PIMCO Small-Cap       Growth of capital                       Common stocks of companies with market     Cadence 
              Growth                                                        capitalizations between $50 million and 
                                                                            $1 billion that have improving fundamentals 
                                                                            and whose stock is reasonably valued by 
                                                                            the market            
              ----------------------------------------------------------------------------------------------------------------------
              PIMCO Micro-Cap       Long-term growth of capital             Common stocks of companies with market     Cadence  
              Growth                                                        capitalizations of less than $100 million  
                                                                            that have improving fundamentals and whose 
                                                                            stock is reasonably valued by the market   
- ------------------------------------------------------------------------------------------------------------------------------------
International PIMCO International   Capital appreciation; income is         Non-U.S. stocks of companies with small, Blairlogie (2)
Stock Funds                         incidental                              medium and large market capitalizations  
                                                                            (developed and emerging markets)        
              ----------------------------------------------------------------------------------------------------------------------
              PIMCO International   Long-term capital appreciation          An international portfolio of equity and  Columbus 
              Growth                                                        equity-related securities                 Circle     
              ----------------------------------------------------------------------------------------------------------------------
              PIMCO Structured      Long-term growth of capital             Common stocks of companies located in     Parametric 
              Emerging Markets                                              emerging market countries                          
              ----------------------------------------------------------------------------------------------------------------------
              PIMCO Tax-Efficient   Same as PIMCO Structured Emerging       Common stocks of companies located in    Parametric 
              Structured            Markets Fund, except that the Fund      emerging market countries
              Emerging Markets      seeks to achieve superior after-tax                                          
                                    returns by employing a variety of       
                                    tax-efficient management strategies                                       
- ------------------------------------------------------------------------------------------------------------------------------------
Specialized   PIMCO Innovation      Capital appreciation; no consideration  Common stocks of companies with small,   Columbus  
Stock Funds                         given to income                         medium and large market capitalizations  Circle (3) 
                                                                            (technology-related stocks)            
              ----------------------------------------------------------------------------------------------------------------------
              PIMCO StocksPLUS      Total return which exceeds the total    S&P 500 stock index derivatives          Pacific 
                                    return performance of the S&P 500       backed by a portfolio of fixed           Investment   
                                                                            income securities                        Management 
</TABLE> 
1. The Standard & Poor's 500 Composite Stock Price Index.
2. On or about March 31, 1999, it is anticipated that PIMCO Advisors will sell 
   substantially all of its ownership interest in Blairlogie. It is expected 
   that Blairlogie will continue to serve as the Portfolio Manager for PIMCO 
   International Fund, subject to the approval of the Fund's shareholders. 
3. On or about March 5, 1999, PIMCO Advisors will assume full portfolio 
   management responsibility for PIMCO Innovation Fund. See "Management of the 
   Portfolios-Portfolio Managers for the Underlying Funds-Columbus Circle." 

                                                               Prospectus    15
<PAGE>
 
Underlying Bond Funds
 
  Pacific Investment Management has full investment discretion and makes all
determinations with respect to the investment of the assets of each Underlying
Bond Fund.
 
  The investment objective of each Underlying Bond Fund (except as provided
below) is to seek to realize maximum total return, consistent with
preservation of capital and prudent investment management. The "total return"
sought by most of the Underlying Bond Funds will consist of interest and
dividends from underlying securities and capital appreciation or depreciation
reflected in changes in the value of portfolio securities. The investment
objective of PIMCO Real Return Bond Fund is to seek to realize maximum real
return, consistent with preservation of real capital and prudent investment
management. "Real return" is total return adjusted for inflation. The
investment objective of each of PIMCO Money Market Fund and PIMCO Short-Term
Fund is to seek to obtain maximum current income consistent with preservation
of capital and daily liquidity. PIMCO Money Market Fund also attempts to
maintain a stable net asset value of $1.00 per share, although there can be no
assurance that it will be successful in doing so.
 
  The following provides a concise description of the primary investments of
and other information relating to each Underlying Bond Fund. For a complete
description of these Funds, please see the Underlying Fund Prospectus for
PIMCO Funds: Pacific Investment Management Series, which is incorporated
herein by reference and is available free of charge by telephoning the Trust
at 1-800-927-4648.
 
<TABLE>
<CAPTION>
                Fund Name                   Primary Investments                Duration         Credit Quality (/1/)
- -----------------------------------------------------------------------------------------------------------------------
 <C>            <C>                         <S>                                <C>              <C>
 Short-Term     PIMCO Money Market          Money market instruments           [less than or     Min 95% Aaa or Prime 1;  
 Bond Funds                                                                     equal to]        (Less than or equal to] 
                                                                               90 days           5% Aa or Prime 2          
                                                                               dollar-weighted   
                                                                               average maturity
             ----------------------------------------------------------------------------------------------------------
                PIMCO Short-Term            Money market instruments           0-1 yr           B to Aaa; max 10%
                                            and short maturity fixed                            below Baa
                                            income securities
             ----------------------------------------------------------------------------------------------------------
                PIMCO Low Duration          Short and intermediate             1-3 yrs          B to Aaa; max 10%
                                            maturity fixed income                               below Baa
                                            securities
- -----------------------------------------------------------------------------------------------------------------------
 Intermediate-  PIMCO Moderate Duration     Short and intermediate             2-5 yrs          B to Aaa; max 10%
 Term                                       maturity fixed income                               below Baa
 Bond Funds                                 securities
             ----------------------------------------------------------------------------------------------------------
                PIMCO Real Return Bond      Inflation-indexed fixed            N/A              B to Aaa; max 10%
                                            income securities                                   below Baa
             ----------------------------------------------------------------------------------------------------------
                PIMCO Total Return          Intermediate maturity              3-6 yrs          B to Aaa; max 10%
                                            fixed income securities                             below Baa
             ----------------------------------------------------------------------------------------------------------
                PIMCO Total Return II       Same as PIMCO Total Return         3-6 yrs          Baa to Aaa
                                            Fund, except that the Fund
                                            is subject to credit quality and
                                            foreign issuer
                                            restrictions
             ----------------------------------------------------------------------------------------------------------
                PIMCO High Yield            Higher yielding fixed              2-6 yrs          B to Aaa; min 65%
                                            income securities                                   below Baa
- -----------------------------------------------------------------------------------------------------------------------
 Long-Term      PIMCO Long-Term U.S.        Long-term maturity fixed           [less than or    A to Aaa
 Bond Funds     Government                  income securities                   equal to 8 yrs
- -----------------------------------------------------------------------------------------------------------------------
 International  PIMCO Global Bond           Intermediate maturity U.S.         3-7 yrs          B to Aaa; max 10%
 Bond Funds                                 and foreign fixed income                            below Baa
                                            securities
             ----------------------------------------------------------------------------------------------------------
                PIMCO Foreign Bond          Intermediate maturity              3-7 yrs          B to Aaa; max 10%
                                            hedged foreign fixed                                below Baa
                                            income securities
             ----------------------------------------------------------------------------------------------------------
                PIMCO Emerging Markets Bond Emerging market fixed              0-8 yrs          B to Aaa
                                            income securities
<CAPTION>
                                    Foreign (/2/)
- -----------------------------------------------------------------------------------------------------------------------
                                    <C>
                                    0%
             ----------------------------------------------------------------------------------------------------------
                                    0-5%
             ----------------------------------------------------------------------------------------------------------
                                    0-20%
- -----------------------------------------------------------------------------------------------------------------------
                                    0-20%
             ----------------------------------------------------------------------------------------------------------
                                    0-35%
             ----------------------------------------------------------------------------------------------------------
                                    0-20%
             ----------------------------------------------------------------------------------------------------------
                                    0%
             ----------------------------------------------------------------------------------------------------------
                                    0%
- -----------------------------------------------------------------------------------------------------------------------
                                    0%
- -----------------------------------------------------------------------------------------------------------------------
                                    25-75%
             ----------------------------------------------------------------------------------------------------------
                                    [greater than or equal to]
                                    85%
             ----------------------------------------------------------------------------------------------------------
                                    [greater than or equal to]
                                    80%
</TABLE>
 
1. As rated by Moody's Investors Service, Inc., or if unrated, determined by
Pacific Investment Management to be of comparable quality.
2. Percentage limitations relate to foreign currency-denominated securities
for all Underlying Bond Funds except PIMCO Foreign Bond, Global Bond and
Emerging Markets Bond Funds. Percentage limitations for these three Funds re-
late to securities of foreign issuers, denominated in any currency. Each Un-
derlying Bond Fund (except PIMCO Total Return II and Long-Term U.S. Government
Funds) may invest beyond these limits in U.S. dollar-denominated securities of
foreign issuers. PIMCO Total Return II and Long-Term U.S. Government Funds may
not invest in any securities of foreign issuers.
 
 
16  PIMCO Funds: Multi-Manager Series
<PAGE>
 
  Each Underlying Bond Fund will normally invest at least 65% of its assets in
the following types of securities, which, unless provided above, may be issued
by domestic or foreign entities and denominated in U.S. dollars or foreign
currencies: securities issued or guaranteed by the U.S. Government, its
agencies or instrumentalities ("U.S. Government securities"); corporate debt
securities, including convertible securities and corporate commercial paper;
mortgage-backed and other asset-backed securities; inflation-indexed bonds
issued by both governments and corporations; structured notes, including
hybrid or "indexed" securities, catastrophe bonds and loan participations;
delayed funding loans and revolving credit facilities; bank certificates of
deposit, fixed time deposits and bankers' acceptances; repurchase agreements
and reverse repurchase agreements; debt securities issued by states or local
governments and their agencies, authorities and instrumentalities; obligations
of foreign governments or their subdivisions, agencies and instrumentalities;
and obligations of international agencies or supranational entities. Fixed
income securities may have fixed, variable or floating rates of interest,
including rates of interest that vary inversely at a multiple of a designated
or floating rate, or that vary according to changes in relative values of
currencies. Most of the Underlying Bond Funds may (but are not required to)
make substantial use of derivative instruments or use a series of purchase and
sale contracts or other investment techniques to obtain market exposure to the
securities in which they primarily invest.
 
Additional Underlying Funds
 
  In addition to the Funds listed above, a Portfolio may invest in additional
Underlying Funds, including those that may become available for investment in
the future, at the discretion of PIMCO Advisors and without shareholder
approval.
 
Principal Risks of the Underlying Funds
 
  There can be no assurance that the investment objectives of any of the
Underlying Funds will be achieved. The following summarizes principal risks
associated with investments in the Underlying Funds. The summary is not
intended to be exhaustive. For a more complete description of these risks,
please refer to "Investment Objectives and Policies" in the Statement of
Additional Information and "Characteristics and Risks of Securities and
Investment Techniques" in the Underlying Fund Prospectuses, which are
incorporated herein by reference and are available free of charge by
telephoning the Trust at 1-800-927-4648.
 
  Market Risk Most securities in which the Underlying Funds invest are subject
to some degree of market risk, which is the risk of unfavorable market-induced
changes in the value of a security. The following summarizes general market
risks associated with investments in fixed income and equity securities.
 
  Fixed Income Securities Changes in the market values of fixed income
securities (i.e., capital appreciation or depreciation) are largely a function
of changes in the current level of interest rates. The value of an Underlying
Fund's investments in fixed income securities will typically change as the
level of interest rates fluctuate. During periods of falling interest rates,
the value of fixed income securities generally rise. Conversely, during
periods of rising interest rates, the value of fixed income securities
generally decline.
 
  "Duration" is one measure of the expected life of a fixed income security.
When interest rates are falling, a portfolio with a shorter duration will
generally not generate as high a level of total return as a portfolio with a
longer duration. When interest rates are rising, a portfolio with a shorter
duration will generally outperform a longer duration portfolio. When interest
rates are flat, shorter duration portfolios generally will not generate as
high a level of total return as longer duration portfolios (assuming that
long-term interest rates are higher than short-term rates, which is commonly
the case). Accordingly, longer duration portfolios generally have a greater
potential for total return than shorter duration portfolios,

                                                                 Prospectus 17
<PAGE>
 
but are also subject to greater levels of market risk and price volatility.
Therefore, Underlying Bond Funds with longer average portfolio durations
(e.g., PIMCO Long-Term U.S. Government Fund) are generally subject to higher
levels of market risk than Funds with shorter durations (e.g., PIMCO Money
Market, Short-Term and Low Duration Funds). Also, some portfolios (e.g., those
with mortgage-backed and other prepayable securities) have changing durations
and may have increasing durations precisely when that is least advantageous
(i.e., when interest rates are rising).
 
  Certain types of securities in which the Underlying Bond Funds may invest
are particularly sensitive to fluctuations in prevailing interest rates and
have relatively high levels of market risk. These include various mortgage-
related securities (for instance, the interest-only or "IO" class of a
stripped mortgage-backed security) and "zero coupon" securities (fixed income
securities, including certain U.S. Government securities, that do not make
periodic interest payments and are purchased at a discount from their value at
maturity). Please see "Investment Objectives and Policies" in the Statement of
Additional Information for a description of these and other fixed income
securities that are particularly sensitive to market risk.
 
  Equity Securities Changes in the market values of equity securities (i.e.,
capital appreciation or depreciation) may depend upon a number of factors,
including: general economic and market conditions; prospects of the security's
issuer; changing interest rates; real or perceived economic and competitive
industry conditions; and currency exchange rates. Generally, over the long
term, the total return obtained by a portfolio that invests primarily in
equity securities has historically been greater than that obtained by a
portfolio that invests primarily in fixed income securities. However, an
equity portfolio is generally subject to greater market risk and price
volatility than a fixed income portfolio and is considered to be a more
aggressive investment.
 
  Credit Risk of Fixed Income Securities Credit risk associated with
investments in fixed income securities relates to the ability of the issuer to
make scheduled payments of principal and interest on an obligation. The
Underlying Funds that invest in fixed income securities are subject to varying
degrees of risk that the issuers of the securities will have their credit
ratings downgraded or will default, potentially reducing the Underlying Fund's
share price and income level. Nearly all fixed income securities are subject
to some credit risk, whether the issuers of the securities are corporations,
states and local governments or foreign governments. Even certain U.S.
Government securities are subject to credit risk.
 
  Credit risk is particularly acute for Underlying Funds which invest in so-
called "high-yield" securities or "junk" bonds, which are fixed income
securities rated lower than Baa by Moody's Investors Service, Inc. ("Moody's")
or BBB by Standard & Poor's Ratings Services ("S&P"), or are determined to be
of comparable quality to securities so rated. While such securities offer the
potential for higher investment returns than higher-rated securities, they
carry a high degree of credit risk and are considered predominantly
speculative with respect to the issuer's continuing ability to meet principal
and interest payments. High yield securities may also be more susceptible to
real or perceived adverse economic and competitive industry conditions and may
be less liquid than higher-rated securities. Accordingly, Underlying Funds
which invest a significant portion of their assets in high yield securities
(e.g., PIMCO High Yield and Emerging Markets Bond Funds) are subject to
substantial credit risk, while Funds that invest in higher quality securities
(e.g., PIMCO Money Market and Long-Term U.S. Government Funds) are subject to
less credit risk.
 
  Investments in Companies with Small Market Capitalizations Certain
Underlying Stock Funds (in particular, PIMCO Micro-Cap Growth, Small-Cap Value
and Small-Cap Growth Funds) invest in common stock of companies with market
capitalizations that are small compared to other publicly traded companies.
Investments in smaller, less seasoned companies may present greater
opportunities for growth and capital appreciation, but also involve greater
risks than customarily are associated with larger, more established companies.
These companies may have limited product
 
18 PIMCO Funds: Multi-Manager Series
<PAGE>
 
lines, markets or financial resources, or they may be dependent upon a limited
management group. In addition, their securities may be traded in the over-the-
counter market or on a regional exchange, or may otherwise have limited
liquidity.
 
  Foreign Securities and Currencies Many Underlying Funds (in particular,
PIMCO International, International Growth, Structured Emerging Markets, Tax-
Efficient Structured Emerging Markets, Global Bond, Foreign Bond and Emerging
Markets Bond Funds) invest in securities of foreign issuers, securities traded
principally in securities markets outside the United States and/or securities
denominated in foreign currencies (together, "foreign securities").
 
  Investing in foreign securities involves special risks not typically
associated with investing in U.S. securities. These risks include: differences
in accounting, auditing and financial reporting standards; generally higher
commission rates on foreign portfolio transactions; higher custodial costs;
the possibility that foreign taxes will be charged on dividends and interest
payable on foreign securities; the possibility of nationalization,
expropriation or confiscatory taxation; adverse changes in investment or
exchange control regulations (which may include suspension of the ability to
transfer currency from a country); political instability; the possibility of
unfavorable foreign economic factors; and greater price volatility.
 
  Certain Underlying Funds (in particular, PIMCO Structured Emerging Markets,
Tax-Efficient Structured Emerging Markets and Emerging Markets Bond Funds) may
invest in the securities of issuers based in countries with developing or
"emerging market" economies. These securities may present market, credit,
currency, liquidity, legal, political and other risks greater than, or in
addition to, risks of investing in developed foreign countries. These risks
include: high currency exchange rate fluctuations; greater social, economic
and political uncertainty and instability (including the risk of war); more
substantial governmental involvement in the economy; less governmental
supervision and regulation of the securities markets and participants in those
markets; unavailability of currency hedging techniques in certain emerging
market countries; the fact that companies in emerging market countries may be
newly organized and may be smaller and less seasoned companies; the difference
in, or lack of, auditing and financial reporting standards, which may result
in unavailability of material information about issuers; different clearance
and settlement procedures, which may be unable to keep pace with the volume of
securities transactions or otherwise make it difficult to engage in such
transactions; the risk that it may be more difficult to obtain and/or enforce
legal judgments in foreign jurisdictions; and significantly smaller market
capitalizations of emerging market issuers.
 
  Underlying Funds that invest in fixed income securities denominated in
foreign currencies or in foreign currencies and related derivative instruments
(in particular, PIMCO Global Bond, Foreign Bond and Emerging Markets Bond
Funds) and Underlying Funds that invest in equity securities traded
principally in foreign currencies, may be adversely affected by changes in
foreign currency exchange rates. Those rates may fluctuate significantly over
short periods of time for a number of reasons, including the forces of supply
and demand in the foreign exchange markets, actual or perceived changes in
interest rates, and intervention (or the failure to intervene) by U.S. or
foreign governments or central banks, or by currency controls or political
developments in the U.S. or abroad. For example, significant uncertainty
surrounds the recent introduction of the euro (a common currency unit for the
European Union) in January 1999 and its ongoing effect on the value of
securities denominated in local European currencies. For a more complete
discussion of foreign currency risks (including those associated with the
euro), please see "Investment Objectives and Policies--Foreign Currencies" in
the Statement of Additional Information.
 
  Derivative Instruments The Underlying Funds (with the exception of PIMCO
Money Market Fund) may (but are not required to) utilize a number of
derivative instruments for risk management purposes or as part of their
investment strategies. These include futures contracts, options contracts,
options on futures contracts, forward contracts and swap

                                                                 Prospectus 19
<PAGE>
 
agreements. Generally, derivatives are financial contracts whose value depends
upon, or is derived from, the value of an underlying asset, reference rate or
index, and may relate to stocks, bonds, interest rates, currencies or currency
exchange rates, commodities, and related indexes. For a description of the
various derivative instruments that may be utilized by the Underlying Funds,
please see "Investment Objectives and Policies" in the Statement of Additional
Information.
 
  The use of derivatives instruments involves risks different from, or greater
than, the risks associated with investing directly in securities and other
more traditional investments. The following provides a general discussion of
important risk factors relating to the use of derivative instruments by the
Underlying Funds.
 
  Management Risk Derivative products are highly specialized instruments that
require investment techniques and risk analyses different from those
associated with stocks and bonds. The use of a derivative requires an
understanding not only of the underlying instrument but also of the derivative
itself, without the benefit of observing the performance of the derivative
under all possible market conditions.
 
  Credit Risk The use of a derivative involves the risk that a loss may be
sustained as a result of the failure of another party to the contract (usually
referred to as a "counterparty") to make required payments or otherwise comply
with the contract's terms.
 
  Liquidity Risk Liquidity risk exists when a particular derivative instrument
is difficult to purchase or sell. If a derivative transaction is particularly
large or if the relevant market is illiquid (as is the case with many
privately negotiated derivatives), it may not be possible to initiate a
transaction or liquidate a position at an advantageous time or price.
 
  Leverage Risk Because many derivatives have a leverage component, adverse
changes in the value or level of the underlying asset, reference rate or index
can result in a loss substantially greater than the amount invested in the
derivative itself. Certain derivatives have the potential for unlimited loss,
regardless of the size of the initial investment. When an Underlying Fund uses
derivatives for leverage, investments in that Fund will tend to be more
volatile, resulting in larger gains or losses in response to market changes.
 
  Market and Other Risks Like most other investments, derivative instruments
are subject to the general risk that the market value of the instrument will
change in a way detrimental to the investor's interest. Other risks in using
derivatives include the risk of mispricing or improper valuation of
derivatives and the inability of derivatives to correlate perfectly with
underlying assets, rates and indexes. Many derivatives, in particular
privately negotiated derivatives, are complex and often valued subjectively.
Improper valuations can result in increased cash payment requirements to
counterparties or a loss of value to an Underlying Fund. Also, the value of
derivatives may not correlate perfectly, or at all, with the value of the
assets, reference rates or indices they are designed to closely track.
Consequently, an Underlying Fund's use of derivatives may not always be an
effective means of, and sometimes could be counterproductive to, furthering
the Fund's investment objective or risk management strategy. In addition,
suitable derivative transactions may not be available in all circumstances and
there can be no assurance that an Underlying Fund will engage in such
transactions at any given time or from time to time.
 
  A Note on PIMCO StocksPLUS Fund While the objective of PIMCO StocksPLUS Fund
is to achieve a total return which exceeds the total return performance of the
S&P 500, it does so by investing substantially all of its assets in a
combination of equity-based derivative instruments and a portfolio of fixed
income securities. Consequently, the risks of investing in the Fund include
the risks of derivatives and the risks generally associated with the
Underlying Bond Funds. To the extent that the Fund invests in S&P 500
derivatives backed by a portfolio of fixed income securities, under certain
 
20 PIMCO Funds: Multi-Manager Series
<PAGE>
 
conditions, generally in a market where the value of both S&P 500 derivatives
and fixed income securities are declining, the Fund may experience greater
losses than would be the case if it were to invest directly in a portfolio of
S&P 500 stocks.
 
  Certain Other Miscellaneous Investment Practices In addition to investing in
the securities listed above under "Primary Investments," some or all of the
Underlying Funds may to varying extents: lend portfolio securities; enter into
repurchase agreements and reverse repurchase agreements; purchase and sell
securities on a when-issued or delayed delivery basis; enter into forward
commitments to purchase securities; purchase and write call and put options on
securities and securities indexes; enter into futures contracts, options on
futures contracts and swap agreements; invest in foreign securities; and buy
or sell foreign currencies and enter into forward foreign currency contracts.
These and the other types of securities and investment techniques used by the
Underlying Funds all have attendant risks. The Portfolios are indirectly
subject to some or all of these risks to varying degrees because they invest
all of their assets in the Underlying Funds. For further information
concerning the investment practices of and risks associated with the
Underlying Funds, please see "Investment Objectives and Policies" in the
Statement of Additional Information and the Underlying Fund Prospectuses,
which are incorporated herein by reference and are available free of charge by
telephoning the Trust at 1-800-927-4648.
 
                         MANAGEMENT OF THE PORTFOLIOS
 
  The business affairs of the Trust are managed under the direction of the
Board of Trustees. Information about the Trustees and the Trust's executive
officers may be found in the Statement of Additional Information under the
heading "Management of the Trust."
 
Investment Adviser
 
  PIMCO Advisors serves as investment adviser to the Portfolios pursuant to an
investment advisory agreement with the Trust. PIMCO Advisors is a Delaware
limited partnership organized in 1987. PIMCO Advisors provides investment
management and advisory services to private accounts of institutional and
individual clients and to mutual funds. Total assets under management of PIMCO
Advisors and its subsidiary partnerships as of December 31, 1998 were
approximately $244.2 billion.
 
  The general partners of PIMCO Advisors are PIMCO Partners, G.P. and PIMCO
Advisors Holdings L.P. ("PAH"). PIMCO Partners, G.P. is a general partnership
between PIMCO Holding LLC, a Delaware limited liability company and an
indirect wholly-owned subsidiary of Pacific Life Insurance Company, and PIMCO
Partners LLC, a California limited liability company controlled by the current
Managing Directors and two former Managing Directors of Pacific Investment
Management. PIMCO Partners, G.P. is the sole general partner of PAH. PIMCO
Advisors is governed by a Management Board, which exercises substantially all
of the governance powers of the general partner and serves as the functional
equivalent of a board of directors.
 
  PIMCO Advisors' address is 800 Newport Center Drive, Newport Beach,
California 92660. PIMCO Advisors is registered as an investment adviser with
the Securities and Exchange Commission. PIMCO Advisors currently has seven
subsidiary investment adviser partnerships, the following six of which manage
one or more of the Underlying Funds: Blairlogie, Cadence, Columbus Circle,
NFJ, Pacific Investment Management and Parametric. On or about March 31, 1999,
it is anticipated that PIMCO Advisors will sell substantially all of its
ownership interest in Blairlogie. See "Portfolio Managers for the Underlying
Funds--Blairlogie" below.

                                                                 Prospectus 21
<PAGE>
 
  PIMCO Advisors' Asset Allocation Committee is responsible for determining
how the Portfolios' assets are allocated and reallocated from time to time
among the Underlying Funds. Individuals who determine general investment
advice and constitute the Asset Allocation Committee for PIMCO Advisors are
William D. Cvengros, Timothy R. Clark, Robert S. Venable and David Young.
 
  William D. Cvengros is the Chief Executive Officer, President and a Member
of the Management Board of PIMCO Advisors and Chairman and a Trustee of the
Trust. He was formerly President of the Trust and a Director and the Vice
Chairman and Chief Investment Officer of Pacific Life Insurance Company. He
received a B.A. in Economics from the University of Notre Dame and an M.B.A.
from Northwestern University and he is a Chartered Financial Analyst. Timothy
R. Clark is a Vice President of PIMCO Advisors and a Senior Vice President of
PIMCO Funds Distributors LLC. He previously served as President of Katonah
Capital Management, Inc. Prior to that, he was with Zweig Advisors Inc. and
its affiliates serving in various capacities, including portfolio manager for
various open- and closed-end funds. He received a B.A. in Economics from
Harvard University and an M.B.A. from New York University. Robert S. Venable
is a Vice President of PIMCO Advisors. He previously served as a Vice
President and portfolio manager at Pacific Investment Management. Mr. Venable
has a B.S. from the University of California, Berkeley and an M.B.A. from the
Wharton School of Business and he is a Chartered Financial Analyst. David
Young is a Vice President in Account Management at Pacific Investment
Management. Previously, he was a Vice President--Client Relations and
Marketing of a former division of PIMCO Advisors, a Director--Client Relations
with Pacific Financial Asset Management Company and a Vice President and
portfolio manager with Analytic Investment Management, Inc. He received a B.A.
in Economics and Political Science and an M.B.A. from the University of
California, Irvine and he is a Chartered Financial Analyst.
 
  Under the investment advisory agreement, PIMCO Advisors, subject to the
supervision of the Board of Trustees, is responsible for providing advice and
guidance with respect to the Portfolios and for managing, either directly or
through others selected by the Adviser, the investment of the Portfolios.
PIMCO Advisors also furnishes to the Board of Trustees periodic reports on the
investment performance of each Portfolio.
 
Portfolio Managers for the Underlying Funds
 
  Pursuant to portfolio management agreements, PIMCO Advisors employs
Portfolio Managers to manage the portfolios of all of the Underlying Stock
Funds with the exception of PIMCO StocksPLUS Fund, for which Pacific
Investment Management serves as investment adviser and Portfolio Manager.
Pacific Investment Management also serves as investment adviser and Portfolio
Manager of each Underlying Bond Fund. The Portfolio Managers have full
investment discretion and make all determinations with respect to the
investment of the assets of the Underlying Funds they manage. If a Portfolio
Manager ceases to manage the portfolio of an Underlying Stock Fund for which
PIMCO Advisors serves as adviser, PIMCO Advisors will either assume full
responsibility for the management of that Fund, or retain a new portfolio
manager subject to the approval of the Trustees and, if required, the
shareholders of the Fund.
 
  Pacific Investment Management manages each Underlying Bond Fund and PIMCO
StocksPLUS Fund, each of which is a series of PIMCO Funds: Pacific Investment
Management Series. Pacific Investment Management is an investment management
firm organized as a general partnership. Pacific Investment Management has two
partners: PIMCO Advisors as the supervisory partner, and PIMCO Management,
Inc. as the managing partner. Pacific Investment Management Company, the
predecessor investment adviser to Pacific Investment Management, commenced
operations in 1971. Pacific Investment Management had approximately $158
billion of assets under management as of December 31, 1998. Pacific Investment
Management's address is 840 Newport Center Drive, Suite 300, Newport Beach,
 
22 PIMCO Funds: Multi-Manager Series
<PAGE>
 
California 92660. Pacific Investment Management is registered as an investment
adviser with the Securities and Exchange Commission and as a commodity trading
adviser with the CFTC.
 
  Pacific Investment Management specializes in all sectors of the fixed income
market using its total return philosophy--seeking both yield and capital
appreciation. Pacific Investment Management's total return philosophy revolves
around the principle of diversification and that no single risk should
dominate returns. By diversifying strategies, or relying on multiple sources
of value, Pacific Investment Management attempts to generate a solid track
record with a high degree of consistency. Pacific Investment Management seeks
to add value through the use of "top down" strategies such as its exposure to
interest rates, or duration, changing volatility, yield curve positioning and
sector rotation. "Bottom up" strategies are also employed involving analysis
and selection of specific securities.
 
  Cadence manages PIMCO Capital Appreciation, Mid-Cap Growth, Small-Cap Growth
and Micro-Cap Growth Funds (the "Cadence Funds"). Cadence is an investment
management firm organized as a general partnership. Cadence has two partners:
PIMCO Advisors as the supervisory partner, and Cadence Capital Management Inc.
as the managing partner. Cadence Capital Management Corporation, the
predecessor investment adviser to Cadence, commenced operations in 1988.
Accounts managed by Cadence had combined assets as of December 31, 1998 of
approximately $7.4 billion. Cadence's address is Exchange Place, 53 State
Street, Boston, Massachusetts 02109. Cadence is registered as an investment
adviser with the Securities and Exchange Commission.
 
  Cadence utilizes an equity investment strategy that focuses on both growth
(evaluating securities on the basis of their potential earnings growth) and
value (evaluating securities based on their price) characteristics, and
attempts to identify reasonably priced securities that offer rapid prospective
earnings growth potential. Cadence utilizes a quantitative screening process
in selecting stocks. Distinct computerized models are used to screen and rank
each issue in a selected universe according to growth and price
considerations. Cadence believes that the models identify the stocks in the
universe exhibiting growth characteristics with reasonable valuations. Stocks
are then selected for a portfolio using qualitative research, and are replaced
when they score worse-than-median screen ranks, have negative earnings
surprises or show poor relative performance. The universes are rescreened
frequently to obtain a favorable composition of growth and value
characteristics for the Cadence Funds.
 
  Columbus Circle manages PIMCO Renaissance, Core Equity, Mid-Cap Equity,
International Growth and Innovation Funds* (the "Columbus Circle Funds").
Columbus Circle is an investment management firm organized as a general
partnership. Columbus Circle has two partners: PIMCO Advisors as the
supervisory partner, and Columbus Circle Investors Management Inc. as the
managing partner. Columbus Circle Investors Division of Thomson Advisory Group
L.P. ("TAG"), the predecessor investment adviser to Columbus Circle, commenced
operations in 1975. Accounts managed by Columbus Circle had combined assets as
of December 31, 1998 of approximately $9.6 billion. Columbus Circle's address
is Metro Center, One Station Place, 8th Floor, Stamford, Connecticut 06902.
Columbus Circle is registered as an investment adviser with the Securities and
Exchange Commission.
 
  At the center of Columbus Circle's equity investment strategy is its theory
of Positive Momentum & Positive Surprise. This theory asserts that a good
company doing better than generally expected will experience a rise in its
stock price, and conversely, a company falling short of expectations will
experience a drop in its stock price. Based on this theory, Columbus Circle
attempts to manage the Columbus Circle Funds with a view to investing in
growing companies that are surprising the market with business results that
are better than anticipated.
 
- --------
*  On or about March 5, 1999, PIMCO Advisors will assume full portfolio
   management responsibility for PIMCO Innovation Fund under the terms of the
   Trust's investment advisory agreement with PIMCO Advisors. The PIMCO Equity
   Advisors Division of PIMCO Advisors will have responsibility for the day-
   to-day portfolio management of the Fund. Information about PIMCO Advisors
   is provided above under "Investment Adviser."
                                                            Prospectus  23
<PAGE>
 
  NFJ manages PIMCO Equity Income, Value, Value 25 and Small-Cap Value Funds
(the "NFJ Funds"). NFJ is an investment management firm organized as a general
partnership. NFJ has two partners: PIMCO Advisors as the supervisory partner,
and NFJ Management Inc. as the managing partner. NFJ Investment Group, Inc.,
the predecessor investment adviser to NFJ, commenced operations in 1989.
Accounts managed by NFJ had combined assets as of December 31, 1998 of
approximately $2.4 billion. NFJ's address is 2121 San Jacinto, Suite 1840,
Dallas, Texas 75201. NFJ is registered as an investment adviser with the
Securities and Exchange Commission.
 
  In managing the NFJ Funds, NFJ uses a value-based philosophy and investment
process. NFJ adheres to the traditional value philosophy that stocks priced
lower than the true value of the issuing company will increase in value, but
differs from many value managers by also considering industry diversification
and the benefits it affords a portfolio. NFJ classifies stock universes by
industry and according to market capitalization. Stocks are selected from a
universe using screening processes that focus on low P/E ratios and/or high
yields within each industry, subject to quality and price momentum screens.
Although quarterly rebalancing is a general rule, NFJ will replace stocks when
an alternate stock within the same industry has a significantly better
characteristics than the current NFJ Fund holdings.
 
  Blairlogie manages PIMCO International Fund. Blairlogie is an investment
management firm organized as a limited partnership under the laws of the
United Kingdom with two general partners and one limited partner. Currently,
the general partners are PIMCO Advisors, which serves as the supervisory
partner, and Blairlogie Holdings Limited, a wholly owned subsidiary of PIMCO
Advisors, which serves as the managing partner. Blairlogie Capital Management
Ltd., the predecessor investment adviser to Blairlogie, commenced operations
in 1992. Accounts managed by Blairlogie had combined assets as of December 31,
1998 of approximately $900 million. Blairlogie's address is 4th Floor, 125
Princes Street, Edinburgh EH2 4AD, Scotland. Blairlogie is registered as an
investment adviser with the Securities and Exchange Commission in the United
States and with the Investment Management Regulatory Organisation in the
United Kingdom.
 
  Blairlogie has more than 50 years of experience in the highly specialized
field of international investing. Its investment philosophy combines
traditional Scottish standards of prudent investment management with modern
quantitative analytical tools. In managing PIMCO International Fund,
Blairlogie employs sophisticated analytical tools to attain specific
information on each country considered for investment and conducts personal
visits to numerous geographical regions, using the information to determine
country allocations. It then selects what it believes to be the best stocks
within each country according to growth, quality and value characteristics.
Through continued monitoring, sell decisions are influenced by changes in
country weightings or changes in a particular security's attractiveness.
 
  It is anticipated that PIMCO Advisors will sell substantially all of its
ownership interest in Blairlogie to Alleghany Asset Management, Inc. on or
about March 31, 1999 (the "Blairlogie Transaction"). The consummation of the
Blairlogie Transaction is subject to a number of conditions. Subject to the
approval of the shareholders of PIMCO International Fund, PIMCO Advisors has
determined to continue to retain Blairlogie as the Portfolio Manager of the
Fund subsequent to the Blairlogie Transaction pursuant to a new portfolio
management agreement between PIMCO Advisors and Blairlogie. This Prospectus
will be supplemented or revised if these events do not occur substantially in
accordance with the schedule outlined above.
 
  Parametric manages PIMCO Enhanced Equity, Tax-Efficient Equity, Structured
Emerging Markets and Tax-Efficient Structured Emerging Markets Funds (the
"Parametric Funds"). Parametric is an investment management firm organized as
a general partnership. Parametric has two partners: PIMCO Advisors as the
supervisory partner, and Parametric Management Inc. as the managing partner.
Parametric Portfolio Associates, Inc., the predecessor investment
 
24 PIMCO Funds: Multi-Manager Series
<PAGE>
 
adviser to Parametric, commenced operations in 1987. Accounts managed by
Parametric had combined assets as of December 31, 1998 of approximately $3.4
billion. Parametric's address is 7310 Columbia Center, 701 Fifth Avenue,
Seattle, Washington 98104-7090. Parametric is registered as an investment
adviser with the SEC and as a commodity trading adviser with the CFTC.
 
  Parametric has developed a structured, long-term investment process that
combines quantitatively-driven fundamental analysis and economic methods.
Parametric attempts to build risk-controlled portfolios of equity securities
that are both reasonably priced and poised to benefit from investor sentiment
by combining its understanding of the financial markets and investment
behavior with extensive quantitative research and modeling. This investment
philosophy is applied for each Parametric Fund, including those with an
emerging markets or tax-efficient focus.
 
Fund Administrator
 
  PIMCO Advisors also serves as administrator (the "Administrator") for the
Portfolios' Institutional Class and Administrative Class shares pursuant to an
administration agreement with the Trust. The Administrator provides or
procures administrative services for Institutional Class and Administrative
Class shareholders of the Portfolios, which include clerical help and
accounting, bookkeeping, internal audit services and certain other services
required by the Portfolios and preparation of reports to the Portfolios'
shareholders and regulatory filings. The Administrator has retained Pacific
Investment Management to provide such services as sub-administrator. The
Administrator and/or the sub-administrator may also retain other affiliates to
provide certain of these services. In addition, the Administrator, at its own
expense, arranges for the provision of legal, audit, custody, transfer agency
(including sub-transfer agency and other administrative services) and other
services necessary for the ordinary operation of the Portfolios, and is
responsible for the costs of registration of the Trust's shares and the
printing of prospectuses and shareholder reports for current shareholders.
 
  The Portfolios (and not the Administrator) are responsible for the following
expenses: (i) salaries and other compensation of any of the Trust's executive
officers and employees who are not officers, directors, stockholders or
employees of PIMCO Advisors, Pacific Investment Management or their
subsidiaries or affiliates; (ii) taxes and governmental fees; (iii) brokerage
fees and commissions and other portfolio transaction expenses; (iv) the costs
of borrowing money, including interest expenses; (v) fees and expenses of the
Trustees who are not "interested persons" of the Adviser, any Portfolio
Manager or the Trust, and any counsel retained exclusively for their benefit;
(vi) extraordinary expenses, including costs of litigation and indemnification
expenses; (vii) expenses which are capitalized in accordance with generally
accepted accounting principles; and (viii) any expenses allocated or allocable
to a specific class of shares, which include distribution and/or service fees
payable with respect to the Administrative Class shares, and may include
certain other expenses as permitted by the Trust's Multiple Class Plan adopted
pursuant to Rule 18f-3 under the 1940 Act, subject to review and approval by
the Trustees. The Portfolios also indirectly pay their proportionate share of
the expenses of the Underlying Funds (including advisory and administrative
fees) in which they invest. See "Underlying Fund Expenses" below.

                                                                 Prospectus 25
<PAGE>
 
Advisory Fees
 
  The Portfolios do not pay any fees to PIMCO Advisors under the Trust's
investment advisory agreement in return for the advisory and asset allocation
services provided by PIMCO Advisors. The Portfolios do, however, indirectly
pay a proportionate share of the advisory fees paid to PIMCO Advisors and
Pacific Investment Management by the Underlying Funds in which the Portfolios
invest. See "Underlying Fund Expenses" below.
 
Administrative Fees
 
  The Portfolios feature fixed administrative fees. For providing or procuring
administrative services to the Portfolios as described above, the
Administrator receives monthly fees from each Portfolio at the annual rate of
[ ]% based on the average daily net assets attributable in the aggregate to
the Portfolio's Institutional Class and Administrative Class shares. The
Portfolios also indirectly pay a proportionate share of the administrative
fees charged by PIMCO Advisors and Pacific Investment Management to the
Underlying Funds in which the Portfolios invest. See "Underlying Fund
Expenses" below. The administration and sub-administration agreements for the
Portfolios may be terminated by the Trustees, or by PIMCO Advisors or Pacific
Investment Management (as the case may be), on 60 days' written notice.
Following their initial terms, the agreements will continue from year-to-year
if approved by the Trustees.
 
Underlying Fund Expenses
 
  The expenses associated with investing in a "fund of funds," such as the
Portfolios, are generally higher than those for mutual funds that do not
invest primarily in other mutual funds. This is because shareholders in a
"fund of funds" indirectly pay a portion of the fees and expenses charged at
the underlying fund level.
 
  The Trust has structured the Portfolios to reduce expenses incurred at the
Underlying Fund level as follows: (a) the Portfolios do not pay any fees for
asset allocation or advisory services under the Trust's investment advisory
agreement; and (b) the Portfolios invest in Institutional Class shares of the
Underlying Funds, which are not subject to any sales charges or 12b-1 fees.
 
  The table on the following page sets forth annual advisory fee and total
operating expense information for Institutional Class shares of the Underlying
Funds. Shareholders of each Portfolio indirectly bear a proportionate share of
these expenses depending upon how the Portfolio's assets are allocated from
time to time among the Underlying Funds. See "Expense Information."
 
26 PIMCO Funds: Multi-Manager Series
<PAGE>
 
<TABLE>
<CAPTION>
                                   Annual Underlying Fund Expenses
                                   (Based on the average daily net assets
                                   attributable to a Fund's Institutional
                                   Class shares):
                                   Advisory Admini-       Total Fund
Underlying Fund                    Fees     strative Fees Operating Expenses
- ----------------------------------------------------------------------------
<S>                                <C>      <C>           <C>
PIMCO Equity Income                0.45%    0.25%         0.70%
- ----------------------------------------------------------------------------
PIMCO Renaissance                  0.60     0.25          0.85
- ----------------------------------------------------------------------------
PIMCO Core Equity                  0.57     0.25          0.82
- ----------------------------------------------------------------------------
PIMCO Mid-Cap Equity               0.63     0.25          0.88
- ----------------------------------------------------------------------------
PIMCO Value                        0.45     0.25          0.70
- ----------------------------------------------------------------------------
PIMCO Value 25                     0.50     0.25          0.75
- ----------------------------------------------------------------------------
PIMCO Capital Appreciation         0.45     0.25          0.70
- ----------------------------------------------------------------------------
PIMCO Mid-Cap Growth               0.45     0.25          0.70
- ----------------------------------------------------------------------------
PIMCO Enhanced Equity              0.45     0.25          0.70
- ----------------------------------------------------------------------------
PIMCO Tax-Efficient Equity         0.45     0.25          0.70
- ----------------------------------------------------------------------------
PIMCO Small-Cap Value              0.60     0.25          0.85
- ----------------------------------------------------------------------------
PIMCO Small-Cap Growth             1.00     0.25          1.25
- ----------------------------------------------------------------------------
PIMCO Micro-Cap Growth             1.25     0.25          1.50
- ----------------------------------------------------------------------------
PIMCO International                0.55     0.50          1.05
- ----------------------------------------------------------------------------
PIMCO International Growth         0.85     0.50          1.35
- ----------------------------------------------------------------------------
PIMCO Structured Emerging Markets  0.45     0.50          0.95
- ----------------------------------------------------------------------------
PIMCO Tax-Efficient Structured
 Emerging Markets                  0.45     0.50          0.95
- ----------------------------------------------------------------------------
PIMCO Innovation                   0.65     0.25          0.90
- ----------------------------------------------------------------------------
PIMCO StocksPLUS                   0.40     0.25          0.65
- ----------------------------------------------------------------------------
PIMCO Money Market                 0.15     0.20          0.35
- ----------------------------------------------------------------------------
PIMCO Short-Term                   0.25     0.20          0.45
- ----------------------------------------------------------------------------
PIMCO Low Duration                 0.25     0.18          0.43
- ----------------------------------------------------------------------------
PIMCO Moderate Duration            0.25     0.20          0.45
- ----------------------------------------------------------------------------
PIMCO Real Return Bond             0.25     0.25          0.50
- ----------------------------------------------------------------------------
PIMCO Total Return                 0.25     0.18          0.43
- ----------------------------------------------------------------------------
PIMCO Total Return II              0.25     0.25          0.50
- ----------------------------------------------------------------------------
PIMCO High Yield                   0.25     0.25          0.50
- ----------------------------------------------------------------------------
PIMCO Long-Term U.S. Government    0.25     0.25          0.50
- ----------------------------------------------------------------------------
PIMCO Global Bond                  0.25     0.30          0.55
- ----------------------------------------------------------------------------
PIMCO Foreign Bond                 0.25     0.25          0.50
- ----------------------------------------------------------------------------
PIMCO Emerging Markets Bond        0.45     0.40          0.85
</TABLE>
 
                                                                 Prospectus 27
<PAGE>
 
Service and Distribution Fees
 
  The Trust has adopted an Administrative Services Plan and a Distribution
Plan (the "Plans") with respect to the Administrative Class shares of each
Portfolio. Under the terms of the Plans, the Trust is permitted to reimburse,
out of the Administrative Class assets of each Portfolio, in an amount up to
 .25% on an annual basis of the average daily net assets of that class,
financial intermediaries that provide services in connection with the
distribution and marketing of shares and/or the provision of certain
shareholder services (in the case of the Distribution Plan) or the
administration of plans or programs that use shares of the Portfolios as their
funding medium (in the case of the Administrative Services Plan), and to
reimburse certain other related expenses. Total reimbursements under the Plans
may be paid in an amount up to .25% on an annual basis of the average daily
net assets attributable to the Administrative Class shares of each Portfolio.
The same entity may not receive both distribution and administrative services
fees with respect to the same assets but may with respect to separate assets
receive fees under each Plan. Fees paid pursuant to either Plan may be paid
for shareholder services and the maintenance of accounts, and therefore may
constitute "service fees" for purposes of applicable rules of the National
Association of Securities Dealers, Inc. Each Plan has been adopted in
accordance with the requirements of Rule 12b-1 under the 1940 Act and will be
administered in accordance with the provisions of that rule, except that
shareholders will not have the voting rights set forth in Rule 12b-1 with
respect to the Administrative Services Plan that they will have with respect
to the Distribution Plan. For more complete disclosure regarding the Plans and
their terms, see the Statement of Additional Information.
 
  Institutional and Administrative Class shares of the Portfolios may also be
offered through certain brokers and financial intermediaries ("service
agents") that have established a shareholder servicing relationship with the
Trust on behalf of their customers. The Trust pays no compensation to such
entities other than service fees paid with respect to Administrative Class
shares. Service agents may impose additional or different conditions on the
purchase or redemption of Portfolio shares by their customers and may charge
their customers transaction or other account fees on the purchase and
redemption of Portfolio shares. Each service agent is responsible for
transmitting to its customers a schedule of any such fees and information
regarding any additional or different conditions regarding purchases and
redemptions. Shareholders who are customers of service agents should consult
their service agents for information regarding these fees and conditions.
 
Distributor
 
  Shares of the Portfolios are distributed through PIMCO Funds Distributors
LLC (the "Distributor"), a wholly owned subsidiary of PIMCO Advisors. The
Distributor, located at 2187 Atlantic Street, Stamford, Connecticut 06902, is
a broker-dealer registered with the SEC.
 
                              PURCHASE OF SHARES
 
  Each Portfolio currently offers its shares in five classes: Institutional
Class, Administrative Class, Class A, Class B and Class C. This Prospectus
relates only to the Institutional Class shares and Administrative Class shares
of the Portfolios. For information regarding Class A, Class B and Class C
shares, see "Other Information--Multiple Classes of Shares" below.
 
  Shares of the Institutional Class are offered primarily for direct
investment by investors such as pension and profit sharing plans, employee
benefit trusts, endowments, foundations, corporations, and high net worth
individuals (Institutional Class shares may also be offered through certain
financial intermediaries that charge their customers transaction or other fees
with respect to their customers' investments in the Portfolios). Shares of the
Administrative
 
28 PIMCO Funds: Multi-Manager Series
<PAGE>
 
Class are offered primarily through employee benefit plan alliances, broker-
dealers, and other intermediaries, and each Portfolio pays service and/or
distribution fees to such entities for services they provide to shareholders
of that class.
 
  Shares of either the Institutional Class or the Administrative Class of the
Portfolios may be purchased at the relevant net asset value of that class
without a sales charge or other fee. The minimum initial investment for shares
of either class is $5 million, except that the minimum initial investment for
a registered investment adviser purchasing Institutional Class shares for its
clients through omnibus accounts is $250,000 per Portfolio. Shares may also be
offered to clients of Blairlogie, Cadence, Columbus Circle, NFJ, Pacific
Investment Management, Parametric and their affiliates, and to the benefit
plans of PIMCO Advisors and its affiliates. In addition, the minimum initial
investment does not apply to shares of the Institutional Class offered through
fee-based programs sponsored and maintained by a registered broker-dealer and
approved by the Distributor pursuant to which each investor pays an asset
based fee at an annual rate of at least .50% of the assets in the account to a
financial intermediary for investment advisory and/or administrative services.
 
  Pension and profit-sharing plans, employee benefit trusts and employee
benefit plan alliances and "wrap account" programs established with broker-
dealers or financial intermediaries may purchase shares of either class only
if the plan or program for which the shares are being acquired will maintain
an omnibus or pooled account for each Portfolio and will not require a
Portfolio to pay any type of administrative payment per participant account to
any third party.
 
  The investment minimums discussed in this section do not apply to
participants in PIMCO Advisors Portfolio Strategies, a managed product
sponsored by PIMCO Advisors.
 
Initial Investment
 
  An account may be opened by completing and signing a Client Registration
Application and mailing it to PIMCO Funds at the following address: 840
Newport Center Drive, Suite 300, Newport Beach, California 92660. A Client
Registration Application may be obtained by calling 1-800-800-0952.
 
  Except as provided below, purchases of Institutional Class and
Administrative Class shares can only be made by wiring federal funds to
Investors Fiduciary Trust Company (the "Transfer Agent"), 801 Pennsylvania,
Kansas City, Missouri 64105. Before wiring federal funds, the investor must
first telephone the Trust at 1-800-927-4648 to receive instructions for wire
transfer, and the following information will be requested: name of authorized
person; shareholder name; shareholder account number; name of Portfolio and
share class; amount being wired; and wiring bank name.
 
  Shares may be purchased without first wiring federal funds if the proceeds
of the investment are derived from an advisory account maintained by the
investor with PIMCO Advisors or one of its affiliates; from surrender or other
payment from an annuity, insurance, or other contract held by Pacific Life
Insurance Company; or from an investment by broker-dealers, institutional
clients or other financial intermediaries which have established a shareholder
servicing relationship with the Trust on behalf of their customers.
 
  A purchase order, together with payment in proper form, received by the
Transfer Agent prior to the close of regular trading (normally 4:00 p.m.,
Eastern time) on the New York Stock Exchange (the "Exchange"), on a day the
Trust is open for business, will be effected at that day's net asset value. An
order received after the close of regular trading on the Exchange will be
effected at the net asset value determined on the next business day. However,
orders received by certain retirement plans and other financial intermediaries
on a business day prior to the close of regular trading on the Exchange and
communicated to the Transfer Agent prior to 9:00 a.m., Eastern time, on the
following business day will be effected at the net asset value determined on
the prior business day. The Trust is "open for business" on each day the
Exchange

                                                                 Prospectus 29
<PAGE>
 
is open for trading, which excludes the following holidays: New Year's Day,
Martin Luther King, Jr. Day, Presidents' Day, Good Friday, Memorial Day,
Independence Day, Labor Day, Thanksgiving Day and Christmas Day. Purchase
orders will be accepted only on days on which the Trust is open for business.
 
Additional Investments
 
  Additional investments may be made at any time at the relevant net asset
value for the particular class by calling the Trust and wiring federal funds
to the Transfer Agent as outlined above.
 
Other Purchase Information
 
  Purchases of a Portfolio's Institutional Class and Administrative Class
shares will be made in full and fractional shares. In the interest of economy
and convenience, certificates for shares will not be issued.
 
  The Trust and the Distributor each reserves the right, in its sole
discretion, to suspend the offering of shares of the Portfolios or to reject
any purchase order, in whole or in part, when, in the judgment of management,
such suspension or rejection is in the best interests of the Trust. The Trust
and the Distributor may also waive the minimum initial investment for certain
investors.
 
  Purchases and sales should be made for long-term investment purposes only.
The Trust and Adviser each reserves the right to restrict purchases of
Portfolio shares (including exchanges) when a pattern of frequent purchases
and sales made in response to short-term fluctuations in share price appears
evident.
 
  Institutional Class and Administrative Class shares of the Trust are not
qualified or registered for sale in all states. Prospective investors should
inquire as to whether shares of a particular Portfolio are available for offer
and sale in their state of residence. Shares of the Trust may not be offered
or sold in any state unless registered or qualified in that jurisdiction or
unless an exemption from registration or qualification is available.
 
Retirement Plans
 
  Shares of the Portfolios are available for purchase by retirement and
savings plans, including Keogh plans, 401(k) plans, 403(b) custodial accounts,
and Individual Retirement Accounts. The administrator of a plan or employee
benefits office can provide participants or employees with detailed
information on how to participate in the plan and how to elect a Portfolio as
an investment option. Participants in a retirement or savings plan may be
permitted to elect different investment options, alter the amounts contributed
to the plan, or change how contributions are allocated among investment
options in accordance with the plan's specific provisions. The plan
administrator or employee benefits office should be consulted for details. For
questions about participant accounts, participants should contact their
employee benefits office, the plan administrator, or the organization that
provides recordkeeping services for the plan. Investors who purchase shares
through retirement plans should be aware that plan administrators may
aggregate purchase and redemption orders for participants in the plan.
Therefore, there may be a delay between the time the investor places an order
with the plan administrator and the time the order is forwarded to the
Transfer Agent for execution.
 
30 PIMCO Funds: Multi-Manager Series
<PAGE>
 
                             REDEMPTION OF SHARES
 
Redemptions by Mail
 
  Institutional Class and Administrative Class shares may be redeemed by
submitting a written request to PIMCO Funds, 840 Newport Center Drive, Suite
300, Newport Beach, California 92660, stating the Portfolio from which the
shares are to be redeemed, the class of shares, the number or dollar amount of
the shares to be redeemed and the account number. The request must be signed
exactly as the names of the registered owners appear on the Trust's account
records, and the request must be signed by the minimum number of persons
designated on the Client Registration Application that are required to effect
a redemption.
 
Redemptions by Telephone or Other Wire Communication
 
  If an election is made on the Client Registration Application (or
subsequently in writing), redemptions of shares may be requested by calling
the Trust at 1-800-927-4648, by sending a facsimile to 1-949-760-4456, or by
other means of wire communication. Investors should state the Portfolio and
class from which the shares are to be redeemed, the number or dollar amount of
the shares to be redeemed and the account number. Redemption requests of an
amount of $10 million or more may be initiated by telephone, but must be
confirmed in writing by an authorized party prior to processing.
 
  In electing a telephone redemption, the investor authorizes Pacific
Investment Management and the Transfer Agent to act on telephone instructions
from any person representing himself to be the investor, and reasonably
believed by Pacific Investment Management and the Transfer Agent to be
genuine. Neither the Trust nor its Transfer Agent may be liable for any loss,
cost or expense for acting on instructions (whether in writing or by
telephone) believed by the party receiving such instructions to be genuine and
in accordance with the procedures described in this Prospectus. Shareholders
should realize that by electing the telephone or wire redemption option, they
may be giving up a measure of security that they might have if they were to
redeem their shares in writing. Furthermore, interruptions in telephone
service may mean that a shareholder will be unable to effect a redemption by
telephone when desired. The Transfer Agent also provides written confirmation
of transactions initiated by telephone as a procedure designed to confirm that
telephone instructions are genuine (written confirmation is also provided for
redemption requests received in writing). All telephone transactions are
recorded, and Pacific Investment Management or the Transfer Agent may request
certain information in order to verify that the person giving instructions is
authorized to do so. If the Trust or Transfer Agent fails to employ reasonable
procedures to confirm that instructions communicated by telephone are genuine,
it may be liable for any losses due to unauthorized or fraudulent telephone
transactions. All redemptions, whether initiated by letter or telephone, will
be processed in a timely manner, and proceeds will be forwarded by wire in
accordance with the redemption policies of the Trust detailed below. See
"Redemption of Shares--Other Redemption Information."
 
  Shareholders may decline telephone exchange or redemption privileges after
an account is opened by instructing the Transfer Agent in writing at least
seven business days prior to the date the instruction is to be effective.
Shareholders may experience delays in exercising telephone redemption
privileges during periods of abnormal market activity. During periods of
volatile economic or market conditions, shareholders may wish to consider
transmitting redemption orders by telegram, facsimile or overnight courier.
 
  Defined contribution plan participants may request redemptions by contacting
the employee benefits office, the plan administrator or the organization that
provides recordkeeping services for the plan.

                                                                 Prospectus 31
<PAGE>
 
Other Redemption Information
 
  Redemption requests for Portfolio shares are effected at the net asset value
per share next determined after receipt in good order of the redemption
request by the Trust or its designee. A redemption request received by the
Trust or its designee prior to the close of regular trading on the Exchange
(normally 4:00 p.m., Eastern time), on a day the Trust is open for business,
is effective on that day. A redemption request received after that time
becomes effective on the next business day.
 
  Payment of the redemption price will ordinarily be wired to the investor's
bank within three business days after the redemption request, but may take up
to seven business days. Redemption proceeds will be sent by wire only to the
bank name designated on the Client Registration Application. The Trust may
suspend the right of redemption or postpone the payment date at times when the
Exchange is closed, or during certain other periods as permitted under the
federal securities laws.
 
  For shareholder protection, a request to change information contained in an
account registration (for example, a request to change the bank designated to
receive wire redemption proceeds) must be received in writing, signed by the
minimum number of persons designated on the Client Registration Application
that are required to effect a redemption, and accompanied by a signature
guarantee from any eligible guarantor institution, as determined in accordance
with the Trust's procedures. Shareholders should inquire as to whether a
particular institution is an eligible guarantor institution. A signature
guarantee cannot be provided by a notary public. In addition, corporations,
trusts, and other institutional organizations are required to furnish evidence
of the authority of the persons designated on the Client Registration
Application to effect transactions for the organization.
 
  Due to the relatively high cost of maintaining small accounts, the Trust
reserves the right to redeem Institutional Class and Administrative Class
shares in any account for their then-current value (which will be promptly
paid to the investor) if at any time, due to redemption by the investor, the
shares in the account do not have a value of at least $100,000. A shareholder
will receive advance notice of a mandatory redemption and will be given at
least 30 days to bring the value of its account up to at least $100,000. This
mandatory redemption policy does not apply to participants in PIMCO Advisors
Portfolio Strategies, a managed product sponsored by PIMCO Advisors.
 
  The Trust agrees to redeem shares of each Fund solely in cash up to the
lesser of $250,000 or 1% of the Portfolio's net assets during any 90-day
period for any one shareholder. In consideration of the best interests of the
remaining shareholders, the Trust reserves the right to pay any redemption
proceeds exceeding this amount in whole or in part by a distribution in kind
of securities held by a Portfolio in lieu of cash. It is highly unlikely that
shares would ever be redeemed in kind. When shares are redeemed in kind, the
redeeming shareholder should expect to incur transaction costs upon the
disposition of the securities received in the distribution.
 
Exchange Privilege
 
  Shares of a Portfolio may be exchanged for shares of the same class of any
other Portfolio or other series of the Trust based on the respective net asset
values of the shares involved. An exchange may be made by following the
redemption procedure described above under "Redemptions by Mail" or, if the
telephone redemption option has been elected, by calling the Trust at 1-800-
927-4648. Shares of a Portfolio may also be exchanged for shares of the same
class of a series of PIMCO Funds: Pacific Investment Management Series.
Shareholders interested in such an exchange may request a prospectus for these
other series by contacting PIMCO Funds: Pacific Investment Management Series
at the same address and telephone number as the Trust.
 
32 PIMCO Funds: Multi-Manager Series
<PAGE>
 
  Exchanges may be made only with respect to Portfolios or other eligible
series that are registered in the state of residence of the investor or where
an exemption from registration is available. An exchange order is treated the
same for tax purposes as a redemption followed by a purchase and may result in
a capital gain or loss, and special rules may apply in computing tax basis
when determining gain or loss. See "Taxation" in the Statement of Additional
Information.
 
  The Trust reserves the right to refuse exchange purchases if, in the
judgment of the Adviser, the purchase would adversely affect a Portfolio and
its shareholders. In particular, a pattern of exchanges characteristic of
"market-timing" strategies may be deemed by the Adviser to be detrimental to
the Trust or a particular Portfolio. Currently, the Trust limits the number of
"round trip" exchanges an investor may make. An investor makes a "round trip"
exchange when the investor purchases shares of a particular Portfolio,
subsequently exchanges those shares for shares of a different Portfolio or
other PIMCO Fund, and then exchanges back into the originally purchased
Portfolio. The Trust has the right to refuse any exchange for any investor who
completes (by making the exchange back into the shares of the originally
purchased Portfolio) more than six round trip exchanges in any twelve-month
period. Although the Trust will attempt to give shareholders prior notice
whenever it is reasonably able to do so, it may impose additional restrictions
on exchanges at any time.
 
                                NET ASSET VALUE
 
  The net asset values of Institutional Class and Administrative Class shares
of each Portfolio will be determined once on each day on which the Exchange is
open (a "Business Day"), as of the close of regular trading (normally 4:00
p.m., Eastern time) on the Exchange. Net asset value will not be determined on
days on which the Exchange is closed.
 
  The market values of the shares of the Underlying Funds held by the
Portfolios are determined once each Business Day in the same manner as the net
asset values of the Portfolios' shares are determined as described below.
 
  Each Portfolio's liabilities are allocated among its classes. The total of
such liabilities allocated to a class plus that class's distribution and/or
servicing fees and any other expenses specially allocated to that class are
then deducted from the class's proportionate interest in the Portfolio's
assets, and the resulting amount for each class is divided by the number of
shares of that class outstanding to produce the class's "net asset value" per
share. Under certain circumstances, the per share net asset value of the
Administrative Class shares of the Portfolios may be lower than the per share
net asset value of the Institutional Class shares as a result of the daily
expense accruals of the service and/or distribution fees applicable to the
Administrative Class shares. Generally, for Portfolios that pay income
dividends, those dividends are expected to differ over time by approximately
the amount of the expense accrual differential between a particular
Portfolio's classes.
 
                      DIVIDENDS, DISTRIBUTIONS AND TAXES
 
  Shares begin earning dividends on the effective date of purchase, provided
notification deadlines are met. See "Purchase of Shares." Net investment
income from interest and dividends, if any, will be declared and paid to
shareholders of record at least monthly by the 30/70 Portfolio, at least
quarterly by the 60/40 Portfolio and at least annually by the 90/10 Portfolio.
Any net capital gains from the sale of portfolio securities will be
distributed no less frequently than once annually. Net short-term capital
gains may be paid more frequently. Dividend and capital gain distributions of
a Fund will be reinvested in additional shares of that Portfolio unless the
shareholder elects to have them paid in cash. Dividends from net investment
income with respect to Administrative Class shares will be lower than those
paid with respect to Institutional Class shares, reflecting the payment of
service and/or distribution fees by that class.
 
                                                                 Prospectus 33
<PAGE>
 
  Each Portfolio intends to qualify as a regulated investment company annually
and to elect to be treated as a regulated investment company under the
Internal Revenue Code of 1986, as amended (the "Code"). As such, a Portfolio
generally will not pay federal income tax on the income and gains it pays as
dividends to its shareholders. In order to avoid a 4% federal excise tax, each
Portfolio intends to distribute each year substantially all of its net income
and gains.
 
  Shareholders subject to U.S. federal income tax will be subject to tax on
dividends received from a Portfolio, regardless of whether received in cash or
reinvested in additional shares. Distributions received by tax-exempt
shareholders will not be subject to federal income tax to the extent permitted
under applicable tax law. All shareholders must treat dividends, other than
capital gain dividends and dividends that represent a return of capital to
shareholders, as ordinary income. In particular, distributions derived from
short-term gains will be treated as ordinary income. Dividends designated by a
Portfolio as capital gain dividends derived from the Portfolio's net capital
gains (that is, the excess of its net long-term capital gains over its net
short-term capital losses) are taxable to shareholders as long-term capital
gain (generally subject to a 20% tax rate) except as provided by an applicable
tax exemption. Any distributions that are not from a Portfolio's net
investment income or net capital gain may be characterized as a return of
capital to shareholders or, in some cases, as capital gain. Certain dividends
declared in October, November or December of a calendar year are taxable to
shareholders (who otherwise are subject to tax on dividends) as though
received on December 31 of that year if paid to shareholders during January of
the following calendar year. Each Portfolio will advise shareholders annually
of the amount and nature of the dividends paid to them.
 
  Taxable shareholders should note that the timing of their investment or
redemptions could have undesirable tax consequences. Dividends and
distributions on a Portfolio's shares are generally subject to federal income
tax as described herein to the extent they do not exceed the Portfolio's
realized income and gains, even though such dividends and distributions may
economically represent a return of a particular shareholder's investment. Such
distributions are likely to occur in respect of shares purchased at a time
when the Portfolio's net asset value reflects gains that are either
unrealized, or realized but not distributed. Such realized gains may be
required to be distributed even when a Portfolio's net asset value also
reflects unrealized losses.
 
  A Portfolio's use of a fund-of-funds structure could affect the amount,
timing and character of distributions to shareholders. See "Taxation" in the
Statement of Additional Information.
 
  The preceding discussion relates only to federal income tax; the
consequences under other tax laws may differ. Shareholders should consult
their tax advisers as to the possible application of foreign, state and local
income tax laws to Trust dividends and capital gain distributions. For
additional information relating to the tax aspects of investing in a
Portfolio, see the Statement of Additional Information.
 
                               OTHER INFORMATION
 
Capitalization
 
  The Trust was organized as a Massachusetts business trust on August 24,
1990, and currently consists of twenty-eight portfolios that are operational,
three of which are described in this Prospectus. Other portfolios may be
offered by means of a separate prospectus. The Board of Trustees may establish
additional portfolios in the future. The capitalization of the Trust consists
of an unlimited number of shares of beneficial interest. When issued, shares
of the Trust are fully paid, non-assessable and freely transferable.
 
34 PIMCO Funds: Multi-Manager Series
<PAGE>
 
  Under Massachusetts law, shareholders could, under certain circumstances, be
held liable for the obligations of the Trust. However, the Second Amended and
Restated Agreement and Declaration of Trust (the "Declaration of Trust") of
the Trust disclaims shareholder liability for acts or obligations of the Trust
and requires that notice of such disclaimer be given in each agreement,
obligation or instrument entered into or executed by the Trust or the
Trustees. The Declaration of Trust also provides for indemnification out of a
Portfolio's property for all loss and expense of any shareholder of that
Portfolio held liable on account of being or having been a shareholder. Thus,
the risk of a shareholder incurring financial loss on account of shareholder
liability is limited to circumstances in which such disclaimer is inoperative
or the Portfolio of which he or she is or was a shareholder is unable to meet
its obligations, and thus should be considered remote.
 
Multiple Classes of Shares
 
  In addition to Institutional Class shares and Administrative Class shares,
the Portfolios also currently offer three additional classes of shares, Class
A, Class B and Class C, through a separate prospectus. This Prospectus relates
only to Institutional Class and Administrative Class shares of the Portfolios.
The other classes of the Portfolios have different sales charges and expense
levels, which will affect performance accordingly. To obtain more information
about the other classes of shares, please call the Distributor at 1-800-426-
0107.
 
  Institutional Class and Administrative Class shares of each Portfolio
represent interests in the assets of that Portfolio, and each class has
identical dividend, liquidation and other rights and the same terms and
conditions, except that expenses related to the distribution and/or
shareholder servicing of Administrative Class shares are borne solely by such
class, and each class may, at the Trustees' discretion, also pay a different
share of other expenses, not including advisory or custodial fees or other
expenses related to the management of the Trust's assets, if these expenses
are actually incurred in a different amount by that class, or if the class
receives services of a different kind or to a different degree than the other
classes. All other expenses are allocated to each class on the basis of the
net asset value of that class in relation to the net asset value of the
particular Portfolio.
 
Voting
 
  Each class of shares of each Portfolio has identical voting rights, except
that each class of shares has exclusive voting rights on any matter submitted
to shareholders that relates solely to that class, and has separate voting
rights on any matter submitted to shareholders in which the interests of one
class differ from the interests of any other class. The Administrative Class
shares have exclusive voting rights with respect to matters pertaining to any
Distribution Plan applicable to that class. These shares are entitled to vote
at meetings of shareholders. Matters submitted to shareholder vote must be
approved by each Portfolio separately except (i) when required by the 1940
Act, shares shall be voted together, and (ii) when the Trustees have
determined that the matter does not affect all Portfolios, then only
shareholders of the Portfolio or Portfolios affected shall be entitled to vote
on the matter. All classes of shares of a Portfolio will vote together, except
with respect to a Distribution Plan or agreement applicable to a class of
shares or when a class vote is required as specified above or otherwise by the
1940 Act. Shares are freely transferable, are entitled to dividends as
declared by the Trustees and, in liquidation of the Trust, are entitled to
receive the net assets of their Portfolio, but not of the other Portfolios or
other series of the Trust. The Trust does not generally hold annual meetings
of shareholders and will do so only when required by law. Shareholders may
remove Trustees from office by votes cast in person or by proxy at a meeting
of shareholders or by written consent. Such a meeting will be called at the
written request of the holders of 10% of the Trust's outstanding shares.
 
  Shares entitle their holders to one vote per share (with proportionate
voting for fractional shares). As used in this Prospectus, the phrase "vote of
a majority of the outstanding shares" of a Portfolio (or the Trust) means the
vote of the
                                                                  Prospectus 35
<PAGE>
 
lesser of: (1) 67% of the shares of the Portfolio (or the Trust) present at a
meeting, if the holders of more than 50% of the outstanding shares are present
in person or by proxy; or (2) more than 50% of the outstanding shares of the
Portfolio (or the Trust).
 
Performance Information
 
  From time to time the Trust may make available certain information about the
performance of the Institutional Class and Administrative Class shares of some
or all of the Portfolios. Information about a Portfolio's performance is based
on that Portfolio's record to a recent date and is not intended to indicate
future performance. Performance information is computed separately for each
Portfolio's Institutional Class and Administrative Class shares in accordance
with the formulas described below. Because Administrative Class shares bear
the expense of service and/or distribution fees, it is expected that, under
normal circumstances, the level of performance of a Portfolio's Administrative
Class shares will be lower than that of the Portfolio's Institutional Class
shares.
 
  The total return of Institutional Class and Administrative Class shares of
all Portfolios may be included in advertisements or other written material.
When a Portfolio's total return is advertised with respect to its
Institutional Class and Administrative Class shares, it will be calculated for
the past year, the past five years and the past ten years (or if the class has
been offered for a period shorter than one, five or ten years, that period
will be substituted) since the inception of the class, as more fully described
in the Statement of Additional Information. Total return for each class is
measured by comparing the value of an investment in the Portfolio at the
beginning of the relevant period to the redemption value of the investment in
the Portfolio at the end of the period (assuming immediate reinvestment of any
dividends or capital gains distributions at net asset value). Total return may
be advertised using alternative methods that reflect all elements of return,
but that may be adjusted to reflect the cumulative impact of alternative fee
and expense structures.
 
  Quotations of yield for a Portfolio or class will be based on the investment
income per share (as defined by the SEC) during a particular 30-day (or one-
month) period (including dividends and interest), less expenses accrued during
the period ("net investment income"), and will be computed by dividing net
investment income by the maximum public offering price per share on the last
day of the period.
 
  The Portfolios may also provide current distribution information to their
shareholders in shareholder reports or other shareholder communications, or in
certain types of sales literature provided to prospective investors. Current
distribution information for a particular class of a Portfolio will be based
on distributions for a specified period (i.e., total dividends from net
investment income), divided by the relevant class net asset value per share on
the last day of the period and annualized. Current distribution rates differ
from standardized yield rates in that they represent what a class of a
Portfolio has declared and paid to shareholders as of the end of a specified
period rather than the Portfolio's actual net investment income for that
period.
 
  The Adviser may also report to shareholders or to the public in
advertisements concerning its performance as adviser to clients other than the
Portfolios, and on its comparative performance or standing in relation to
other money managers. Such comparative information may be compiled or provided
by independent ratings services or by news organizations. Any performance
information, whether related to the Portfolios, the Adviser or an advisory
affiliate of the Adviser, should be considered in light of the Portfolio's
investment objectives and policies, characteristics and quality of the
Portfolios' investments, and the market conditions during the time period
indicated, and should not be considered to be representative of what may be
achieved by the Portfolios in the future.
 
  Investment results of the Portfolios will fluctuate over time, and any
representation of the Portfolios' total return or yield for any prior period
should not be considered as a representation of what an investor's total
return or yield may be in any future period.
 
36 PIMCO Funds: Multi-Manager Series
<PAGE>
 
 
           --------------------------------------------------------------------
PIMCO      INVESTMENT ADVISER AND ADMINISTRATOR 
Funds      PIMCO Advisors L.P., 800 Newport Center Drive, Newport Beach, CA
Asset      92660
Allocation 
Series     --------------------------------------------------------------------
           CUSTODIAN AND TRANSFER AGENT
           Investors Fiduciary Trust Company, 801 Pennsylvania, Kansas City,
           MO 64105
           --------------------------------------------------------------------
           INDEPENDENT ACCOUNTANTS
           PricewaterhouseCoopers LLP, 1055 Broadway, Kansas City, MO 64105
           --------------------------------------------------------------------
           LEGAL COUNSEL
           Ropes & Gray, One International Place, Boston, MA 02110
           --------------------------------------------------------------------
<PAGE>

PIMCO Funds Asset Allocation Series               
Actively Managed Portfolios of select PIMCO Funds 

<TABLE> 
<S>                                          <C>                                 <C>    
For More Information                         Statement of Additional             Information about the Trust     
The following documents are                  Information (SAI) The SAI           (including the SAI) can be      
or will be available that                    contains additional                 reviewed and copied at the      
offer further information on                 information about the               Securities and Exchange         
the Portfolios and other                     Portfolios. A current SAI has       Commission's Public Reference   
series of PIMCO Funds: Multi-                been filed with the Securities      Room in Washington, D.C.        
Manager Series                               and Exchange Commission, and        Information on the operation    
                                             is incorporated into this           of the public reference room    
Annual/Semi-Annual Reports to                prospectus by reference.            may be obtained by calling the  
Shareholders The Trust began                                                     Commission at 1-800-SEC-0330.   
offering Institutional Class                 To request a free copy of           Reports and other information   
and Administrative Class                     these documents or to make          about the Trust are available   
shares of the Portfolios on                  inquiries about the                 on the Commission's Internet    
February 1, 1999. The Trust's                Portfolios, please write or         site at www.sec.gov, and        
next annual and semi-annual                  call:                               copies of that information may  
reports will include a                                                           be obtained, upon payment of a   
discussion of the market                     PIMCO Funds:                        duplicating fee, by writing     
conditions and investment                    Multi-Manager Series                the Public Reference Section    
strategies that significantly                840 Newport Center Drive            of the Commission, Washington,  
affected the Portfolios'                     Suite 300                           D.C. 20549-6009.                 
performance during its last                  Newport Beach, CA 92660           
fiscal year or other period.                                                   
                                             Telephone:                        
                                             1-800-927-4648                    
                                             1-800-987-4626 (PIMCO Infolink    
                                             Audio Response Network)            
</TABLE> 
                                                                        PIMCO
                                                                        -----
                                                                        FUNDS
SEC File Number: 811-06161

PIMCO Funds

840 Newport Center Drive
Suite 300
Newport Beach, CA 92660



<PAGE>
 
                                 PIMCO FUNDS:
                             MULTI-MANAGER SERIES

                      STATEMENT OF ADDITIONAL INFORMATION
        
                              APRIL __, 1999     

    
    PIMCO Funds:  Multi-Manager Series (the "Trust"), formerly PIMCO Funds:
Equity Advisors Series, PIMCO Advisors Institutional Funds, PFAMCo Funds, and
PFAMCo Fund, is an open-end management investment company ("mutual fund")
currently consisting of twenty-eight separate diversified investment series.
The following twenty-five series (the "Funds") invest directly in equity and/or
fixed income securities and other instruments:    the Equity Income Fund, the
Value Fund, the Renaissance Fund, the Tax-Efficient Equity Fund, the Enhanced
Equity Fund, the Growth Fund, the Value 25 Fund, the Capital Appreciation Fund,
the Mid-Cap Growth Fund, the Core Equity Fund, the Mid-Cap Equity Fund, the
Target Fund, the Small-Cap Value Fund, the Small-Cap Growth Fund, the
Opportunity Fund, the Micro-Cap Growth Fund, the Innovation Fund, the
International Fund, the International Developed Fund, the International Growth
Fund, the Emerging Markets Fund, the Tax-Efficient Structured Emerging Markets
Fund, the Structured Emerging Markets Fund, the Precious Metals Fund and the
Balanced Fund.  Three additional series, PIMCO Funds Asset Allocation Series -
90/10 Portfolio (the "90/10 Portfolio"), PIMCO Funds Asset Allocation Series -
60/40 Portfolio (the "60/40 Portfolio"), and PIMCO Funds Asset Allocation Series
- - 30/70 Portfolio (the "30/70 Portfolio", and together with the 90/10 Portfolio
and the 60/40 Portfolio, the "Portfolios"), are so-called "funds of funds" which
invest all of their assets in certain of the Funds and other series in the PIMCO
Funds family.  
     
       The Tax Exempt Fund, formerly a series of the Trust, was merged with and
into the Municipal Bond Fund of PIMCO Funds in a transaction which took place on
June 26, 1998 and was liquidated in connection with the transaction.  
    
    The Trust's investment adviser is PIMCO Advisors L.P. ("PIMCO Advisors" or
the "Adviser"), 800 Newport Center Drive, Newport Beach, California 92660. 
        
    This Statement of Additional Information is not a Prospectus, and should be
used in conjunction with the Prospectuses for the Trust, as supplemented from
time to time. The Trust offers up to six classes of shares of each of the Funds
through five Prospectuses. Class A, Class B and Class C shares of certain Funds
are offered through the "Class A, B and C Prospectus," dated April __, 1999,
Class D shares of certain Funds are offered through the "Class D Prospectus"
dated April __, 1999 and Institutional and Administrative Class shares of
certain Funds are offered through the "Institutional Prospectus," dated April
__, 1999. Class A, Class B and Class C shares of the Portfolios are offered
through the "Retail Portfolio Prospectus," dated April __, 1999 and
Institutional and Administrative Class Shares of the Portfolios are offered
through the "Institutional Portfolio Prospectus," dated February 1, 1999. The
Class A, B and C Prospectus, the Class D Prospectus, the Institutional
Prospectus, the Retail Portfolio Prospectus and the Institutional Portfolio
Prospectus are collectively referred to herein as the "Prospectuses." A copy of
the applicable Prospectus may be obtained free of charge at the address and
telephone number(s) listed below.     
<TABLE>    
<CAPTION>
                                                       
   Institutional Prospectus                        Class A, B and C; Class D;
   and Institutional Portfolio Prospectus          and Retail Portfolio Prospectuses:
   --------------------------------------          ---------------------------------- 
   <S>                                             <C> 
   PIMCO Funds                                     PIMCO Funds Distributors LLC
   840 Newport Center Drive                        2187 Atlantic Street
   Suite 300                                       Stamford, Connecticut 06902
   Newport Beach, California 92660                 Telephone: Class A, B and C - 1-800-426-0107
   Telephone: 1-800-927-4648                            Class D - 1-888-87-PIMCO      
              1-800-987-4626 (PIMCO Infolink Audio      Retail Portfolio - 1-800-426-0107
              Response Network)
</TABLE>     
<PAGE>
 
                               TABLE OF CONTENTS
                               -----------------

<TABLE>    
<CAPTION>
                                                                                      PAGE
                                                                                      ----
<S>                                                                                     <C>
INVESTMENT OBJECTIVES AND POLICIES....................................................   3
     U.S. Government Securities.......................................................   3
     Inflation-Indexed Bonds..........................................................   3
     Borrowing........................................................................   4
     Preferred Stock..................................................................   5
     Corporate Debt Securities........................................................   5
     High Yield Securities ("Junk Bonds").............................................   6
     Loan Participations and Assignments..............................................   7
     Delayed Funding Loans and Revolving Credit Facilities............................   7
     Hybrid Instruments...............................................................   8
     Catastrophe Bonds................................................................   8
     Participation on Creditors Committees............................................   9
     Variable and Floating Rate Securities............................................   9
     Mortgage-Related and Asset-Backed Securities.....................................   9
     Foreign Securities...............................................................  13
     Foreign Currencies...............................................................  16
     Bank Obligations.................................................................  17
     Commercial Paper.................................................................  18
     Derivative Instruments...........................................................  18
     When-Issued, Delayed Delivery and Forward Commitment Transactions................  24
     Warrants to Purchase Securities..................................................  25
     Metal-Indexed Notes and Precious Metals..........................................  25
     Repurchase Agreements............................................................  26
     Securities Loans.................................................................  26
     Investment Strategies of the Portfolios - Incorporation by Reference.............  26

INVESTMENT RESTRICTIONS...............................................................  27
     Fundamental Investment Restrictions..............................................  27
     Non-Fundamental Investment Restrictions..........................................  30

MANAGEMENT OF THE TRUST...............................................................  32
     Trustees.........................................................................  32
     Officers.........................................................................  34
     Trustees' Compensation...........................................................  35
     Investment Adviser...............................................................  37
     Portfolio Management Agreements..................................................  39
     Fund Administrator...............................................................  43

DISTRIBUTION OF TRUST SHARES..........................................................  47
     Distributor and Multi-Class Plan.................................................  47
     Contingent Deferred Sales Charge and Initial Sales Charge........................  48
     Distribution and Servicing Plans for Class A, Class B and Class C Shares.........  49
     Payments Pursuant to Class A Plans...............................................  50
     Payments Pursuant to Class B Plans...............................................  51
     Payments Pursuant to Class C Plans...............................................  53
     Distribution and Administrative Services Plans for Administrative Class Shares...  56
     Payments Pursuant to the Administrative Plans....................................  58
     Plan for Class D Shares..........................................................  58
</TABLE>     
<PAGE>
 
<TABLE>    
<S>                                                                        <C> 
     Purchases, Exchanges and Redemptions.................................  60
                                                                          
PORTFOLIO TRANSACTIONS AND BROKERAGE......................................  61
     Investment Decisions.................................................  61
     Brokerage and Research Services......................................  61
     Portfolio Turnover...................................................  64
                                                                          
NET ASSET VALUE...........................................................  64
                                                                          
TAXATION..................................................................  64
     Distributions........................................................  65
     Sales of Shares......................................................  66
     Backup Withholding...................................................  67
     Options, Futures, Forward Contracts and Swap Agreements..............  67
     Passive Foreign Investment Companies.................................  67
     Foreign Currency Transactions........................................  67
     Foreign Taxation.....................................................  67
     Original Issue Discount..............................................  68
     Other Taxation.......................................................  68
                                                                          
OTHER INFORMATION.........................................................  69
     Capitalization.......................................................  69
     Performance Information..............................................  69
     Calculation of Yield.................................................  70
     Year 2000 and Other Compliance Efforts of the Adviser................  82
     Voting Rights........................................................  85
     Certain Ownership of Trust Shares....................................  85
     Custodian............................................................ 119
     Independent Accountants.............................................. 119
     Registration Statement............................................... 119
     Financial Statements................................................. 119
                                                                          
APPENDIX.................................................................. A-1
</TABLE>     
<PAGE>
 
                      INVESTMENT OBJECTIVES AND POLICIES
    
     The investment objectives and general investment policies of each Fund and
each Portfolio are described in the applicable Prospectus(es). Additional
information concerning the characteristics of certain of the Funds' investments
is set forth below.     
    
     The 90/10 Portfolio, 60/40 Portfolio and 30/70 Portfolio invest all of
their assets in certain Funds and series of PIMCO Funds ("PIMS"), an open-end
series management investment company advised by Pacific Investment Management
Company ("Pacific Investment Management"), an affiliate of PIMCO Advisors. PIMS
is referred to in the Prospectuses as PIMCO Funds: Pacific Investment Management
Series. These Funds and other series in which the Portfolios invest are referred
to in this Statement as "Underlying PIMCO Funds." By investing in Underlying
PIMCO Funds, the Portfolios may have an indirect investment interest in some or
all of the securities and instruments described below depending upon how their
assets are allocated among the Underlying PIMCO Funds. The Portfolios may also
have an indirect investment interest in other securities and instruments
utilized by the Underlying PIMCO Funds which are series of PIMS. These
securities and instruments are described in the current PIMS prospectus for
Institutional Class and Administrative Class shares and in the PIMS statement of
additional information. The PIMS prospectus and statement of additional
information are incorporated in this document by reference. See "Investment
Strategies of the Portfolios - Incorporation by Reference" below.    

U.S. GOVERNMENT SECURITIES

     U.S. Government securities are obligations of, or guaranteed by, the U.S.
Government, its agencies or instrumentalities.  The U.S. Government does not
guarantee the net asset value of the Funds' shares. Some U.S. Government
securities, such as Treasury bills, notes and bonds, and securities guaranteed
by the Government National Mortgage Association ("GNMA"), are supported by the
full faith and credit of the United States; others, such as those of the Federal
Home Loan Banks, are supported by the right of the issuer to borrow from the
U.S. Treasury; others, such as those of the Federal National Mortgage
Association ("FNMA"), are supported by the discretionary authority of the U.S.
Government to purchase the agency's obligations; and still others, such as those
of the Student Loan Marketing Association, are supported only by the credit of
the instrumentality.  U.S. Govern  ment securities include securities that have
no coupons, or have been stripped of their unmatured interest coupons,
individual interest coupons from such securities that trade separately, and
evidences of receipt of such securities. Such securities may pay no cash income,
and are purchased at a deep discount from their value at maturity.  Because
interest on zero coupon securities is not distributed on a current basis but is,
in effect, compounded, zero coupon securities tend to be subject to greater
market risk than interest-paying securities of similar maturities.  Custodial
receipts issued in connection with so-called trademark zero coupon securities,
such as CATs and TIGRs, are not issued by the U.S. Treasury, and are therefore
not U.S. Government securities, although the underlying bond represented by such
receipt is a debt obligation of the U.S. Treasury.  Other zero coupon Treasury
securities (e.g., STRIPs and CUBEs) are direct obligations of the U.S.
Government.

INFLATION-INDEXED BONDS
    
     The Balanced Fund may invest in  inflation-indexed bonds, which are fixed
income securities whose value is periodically adjusted according to the rate of
inflation. Two structures are common.  The U.S. Treasury and some other issuers
utilize a structure that accrues inflation into the principal value of the bond.
Most other issuers pay out the Consumer Price Index ("CPI") accruals as part of
a semiannual coupon.
    
     Inflation-indexed securities issued by the U.S. Treasury have maturities of
approximately five, ten or thirty years, although it is possible that securities
with other maturities will be issued in the future. The U.S. Treasury securities
pay interest on a semi-annual basis equal to a fixed percentage of the
inflation-adjusted principal amount. For example, if the Balanced Fund
purchased an inflation-indexed bond with a par value of $1,000 and a 3% real
rate of return coupon (payable 1.5% semi-annually), and the rate of inflation
over the first six months

                                       3
<PAGE>
 
    
was 1%, the mid-year par value of the bond would be $1,010 and the first semi-
annual interest payment would be $15.15 ($1,010 times 1.5%). If inflation during
the second half of the year resulted in the whole year's inflation equaling 3%,
the end-of-year par value of the bond would be $1,030 and the second semi-annual
interest payment would be $15.45 ($1,030 times 1.5%).     
    
     If the periodic adjustment rate measuring inflation falls, the principal
value of inflation-indexed bonds will be adjusted downward, and consequently the
interest payable on these securities (calculated with respect to a smaller
principal amount) will be reduced. Repayment of the original bond principal upon
maturity (as adjusted for inflation) is guaranteed in the case of U.S. Treasury
inflation-indexed bonds, even during a period of deflation. However, the current
market value of the bonds is not guaranteed and will fluctuate. The Fund may
also invest in other inflation-related bonds which may or may not provide a
similar guarantee. If a guarantee of principal is not provided, the adjusted
principal value of the bond repaid at maturity may be less than the original
principal amount.     
    
     The value of inflation-indexed bonds is expected to change in response to
changes in real interest rates. Real interest rates in turn are tied to the
relationship between nominal interest rates and the rate of inflation.
Therefore, if the rate of inflation rises at a faster rate than nominal
interest rates, real interest rates might decline, leading to an increase in
value of inflation-indexed bonds. In contrast, if nominal interest rates
increase at a faster rate than inflation, real interest rates might rise,
leading to a decrease in value of inflation-indexed bonds.     

     While these securities are expected to be protected from long-term
inflationary trends, short-term increases in inflation may lead to a decline in
value. If interest rates rise due to reasons other than inflation (for example,
due to changes in currency exchange rates), investors in these securities may
not be protected to the extent that the increase is not reflected in the bond's
inflation measure.
    
     
    
     The periodic adjustment of U.S. inflation-indexed bonds is tied to the
Consumer Price Index for Urban Consumers (''CPI-U''), which is calculated
monthly by the U.S. Bureau of Labor Statistics. The CPI-U is a measurement of
changes in the cost of living, made up of components such as housing, food,
transportation and energy. Inflation-indexed bonds issued by a foreign
government are generally adjusted to reflect a comparable inflation index
calculated by that government. There can be no assurance that the CPI-U or any
foreign inflation index will accurately measure the real rate of inflation in
the prices of goods and services. Moreover, there can be no assurance that the
rate of inflation in a foreign country will be correlated to the rate of
inflation in the United States.     

     Any increase in the principal amount of an inflation-indexed bond will be
considered taxable ordinary income, even though investors do not receive their
principal until maturity.


BORROWING

     Subject to the limitations described under "Investment Restrictions" below,
a Fund may be permitted to borrow for temporary purposes and/or for investment
purposes. Such a practice will result in leveraging of a Fund's assets and may
cause a Fund to liquidate portfolio positions when it would not be advantageous
to do so. This borrowing may be unsecured. Provisions of the Investment Company
Act of 1940, as amended ("1940 Act"), require a Fund to maintain continuous
asset coverage (that is, total assets including borrowings, less liabilities
exclusive of borrowings) of 300% of the amount borrowed, with an exception for
borrowings not in excess of 5% of the Fund's total assets made for temporary
administrative purposes. As noted under "Investment Restrictions," certain Funds
are subject to limitations on borrowings which are more strict than those
imposed by the 1940 Act. Any borrowings for temporary administrative purposes in
excess of 5% of the Fund's total assets must maintain continuous asset coverage.
If the 300% asset coverage should decline as a result of market fluctuations or
other reasons, a Fund may

                                       4
<PAGE>
 
be required to sell some of its portfolio holdings within three days to reduce
the debt and restore the 300% asset coverage, even though it may be
disadvantageous from an investment standpoint to sell securities at that time.
Borrowing will tend to exaggerate the effect on net asset value of any increase
or decrease in the market value of a Fund's portfolio. Money borrowed will be
subject to interest costs which may or may not be recovered by appreciation of
the securities purchased. A Fund also may be required to maintain minimum
average balances in connection with such borrowing or to pay a commitment or
other fee to maintain a line of credit; either of these requirements would
increase the cost of borrowing over the stated interest rate.

     In addition to borrowing for temporary purposes, a Fund may enter into
reverse repurchase agreements if permitted to do so under its investment
restrictions. A reverse repurchase agreement involves the sale of a portfolio-
eligible security by a Fund, coupled with its agreement to repurchase the
instrument at a specified time and price. The Fund will segregate assets
determined to be liquid by the Adviser or the Fund's sub-adviser (the Funds' 
sub-advisers are referred to herein as "Portfolio Managers") in accordance with
procedures established by the Board of Trustees and equal (on a daily mark-to-
market basis) to its obligations under reverse repurchase agreements with 
broker-dealers (but not banks). However, reverse repurchase agreements involve
the risk that the market value of securities retained by the Fund may decline
below the repurchase price of the securities sold by the Fund which it is
obligated to repurchase. Reverse repurchase agreements will be subject to the
Funds' limitations on borrowings as specified under "Investment Restrictions"
below.

PREFERRED STOCK

     All Funds may invest in preferred stock.  Preferred stock is a form of
equity ownership in a corporation. The dividend on a preferred stock is a fixed
payment which the corporation is not legally bound to pay.  Certain classes of
preferred stock are convertible, meaning the preferred stock is convertible into
shares of common stock of the issuer.  By holding convertible preferred stock, a
Fund can receive a steady stream of dividends and still have the option to
convert the preferred stock to common stock.

CORPORATE DEBT SECURITIES

     All Funds may invest in corporate debt securities.  The Equity Income,
Value, Tax-Efficient Equity, Value 25, Capital Appreciation, Mid-Cap Growth,
Micro-Cap Growth, Small-Cap Value, Small-Cap Growth, Core Equity, Mid-Cap
Equity, Enhanced Equity, Emerging Markets, Structured Emerging Markets, Tax-
Efficient Structured Emerging Markets and International Developed Funds'
investments in corporate debt securities are limited to short-term corporate
debt securities.  The investment return of corporate debt securities reflects
interest earnings and changes in the market value of the security.  The market
value of a corporate debt obligation may be expected to rise and fall inversely
with interest rates generally. There also exists the risk that the issuers of
the securities may not be able to meet their obligations on interest or
principal payments at the time called for by an instrument.

     A Fund's investments in U.S. dollar or foreign currency-denominated
corporate debt securities of domestic or foreign issuers are limited to
corporate debt securities (corporate bonds, debentures, notes and other similar
corporate debt instruments, including convertible securities) which meet the
minimum ratings criteria set forth for the Fund, or, if unrated, are deemed to
be comparable in quality to corporate debt securities in which the Fund may
invest.  The rate of return or return of principal on some debt obligations may
be linked or indexed to the level of exchange rates between the U.S. dollar and
a foreign currency or currencies.

     Among the corporate debt securities in which the Funds may invest are
convertible securities.  A convertible debt security is a bond, debenture, note,
or other security that entitles the holder to acquire common stock or other
equity securities of the same or a different issuer.  A convertible security
generally entitles the holder to receive interest paid or accrued until the
convertible security matures or is redeemed, converted or exchanged.  Before
conversion, convertible securities have characteristics similar to non-
convertible debt securities.  Convertible securities rank senior to common stock
in a corporation's capital structure and, therefore, generally entail less risk
than the corporation's common stock.

                                       5
<PAGE>
 
     A convertible security may be subject to redemption at the option of the
issuer at a predetermined price.  If a convertible security held by a Fund is
called for redemption, the Fund would be required to permit the issuer to redeem
the security and convert it to underlying common stock, or would sell the
convertible security to a third party.

HIGH YIELD SECURITIES ("JUNK BONDS")

     Certain of the Funds may invest in debt/fixed income securities of domestic
or foreign issuers that meet minimum ratings criteria set forth for a Fund, or,
if unrated, are of comparable quality in the opinion of the Fund's Portfolio
Manager.  A description of the ratings categories used is set forth in the
Appendix to this Statement of Additional Information.
    
     A security is considered to be below "investment grade" quality if it is
either (1) not rated in one of the four highest rating categories by one of the
Nationally Recognized Statistical Rating Organizations ("NRSROs") (i.e., rated
Ba or below by Moody's Investors Service, Inc. ("Moody's") or BB or below by
Standard & Poor's Ratings Services ("S&P")) or (2) if unrated, determined by the
relevant Portfolio Manager to be of comparable quality to obligations so 
rated.     
    
     The Renaissance, Growth and Balanced Funds may invest a portion of their
assets in fixed income securities rated lower than Baa by Moody's or lower than
BBB by S&P but rated at least B by Moody's or S&P or, if not rated, determined
by the Portfolio Manager to be of comparable quality. In addition, the
Renaissance Fund may invest in convertible securities rated below B by Moody's
or S&P (or, if unrated, considered by the Portfolio Manager to be of comparable
quality). Securities rated lower than Baa by Moody's or lower than BBB by S&P
are sometimes referred to as "high yield" or "junk" bonds. Investors should
consider the risks associated with high yield securities before investing in
these Funds. Although each of the Renaissance and Growth Funds reserves the
right to do so at any time, as of the date of this Statement of Additional
Information, neither Fund invests or has the present intention to invest more
than 5% of its assets in high yield securities or junk bonds. Investment in high
yield securities generally provides greater income and increased opportunity for
capital appreciation than investments in higher quality securities, but it also
typically entails greater price volatility as well as principal and income risk.
High yield securities are regarded as predominantly speculative with respect to
the issuer's continuing ability to meet principal and interest payments. The
market for these securities is relatively new, and many of the outstanding high
yield securities have not endured a major business recession. A long-term track
record on default rates, such as that for investment grade corporate bonds, does
not exist for this market. Analysis of the creditworthiness of issuers of high
yield securities may be more complex than for issuers of higher quality
debt/fixed income securities. Each Fund of the Trust that may purchase high
yield securities may continue to hold such securities following a decline in
their rating if in the opinion of the Adviser or the Portfolio Manager, as the
case may be, it would be advantageous to do so. Investments in high yield
securities that are eligible for purchase by certain of the Funds are described
as "speculative" by both Moody's and S&P.

     Investing in high yield securities involves special risks in addition to
the risks associated with investments in higher rated fixed income securities.
While offering a greater potential opportunity for capital appreciation and
higher yields than investments in higher rated debt securities, high yield
securities typically entail greater potential price volatility and may be less
liquid than investment grade debt. High yield securities may be regarded as
predominately speculative with respect to the issuer's continuing ability to
meet principal and interest payments. Analysis of the creditworthiness of
issuers of high yield securities may be more complex than for issuers of higher
quality debt securities, and achievement of a Fund's investment objective may,
to the extent of its investments in high yield securities, depend more heavily
on the Portfolio Manager's creditworthiness analysis than would be the case if
the Fund were investing in higher quality securities.

     High yield securities may be more susceptible to real or perceived adverse
economic and competitive industry conditions than investment grade securities.
The prices of high yield securities are likely to be sensitive to adverse
economic downturns or individual corporate developments.  A projection of an
economic downturn or of a period of rising interest rates, for example, could
cause a decline in high yield security prices because the advent of a recession
could lessen the ability of a highly leveraged company to make principal and
interest payments on its debt/fixed income securities.  If an issuer of high
yield securities defaults, in addition to risking payment of all or a portion of
interest and principal, the Funds investing in such securities may incur
additional expenses to seek 

                                       6
<PAGE>
 
recovery. In the case of high yield securities structured as zero-coupon or pay-
in-kind securities, their market prices are affected to a greater extent by
interest rate changes, and therefore tend to be more volatile than securities
which pay interest periodically and in cash. Even though such securities do not
pay current interest in cash, a Fund nonetheless is required to accrue interest
income on these investments and to distribute the interest income on a current
basis. Thus, a Fund could be required at times to liquidate other investments in
order to satisfy its distribution requirements. 

     Prices of high yield/high risk securities have been found to be less
sensitive to interest rate changes than more highly rated investments, but more
sensitive to economic downturns or individual corporate developments.  The
secondary market on which high yield securities are traded may be less liquid
than the market for higher grade securities.  Less liquidity in the secondary
trading market could adversely affect the price at which the Funds could sell a
high yield security, and could adversely affect the daily net asset value of the
shares.  Lower liquidity in secondary markets could adversely affect the value
of high yield/high risk securities held by the Renaissance, Growth and Balanced
Funds.  While lower rated securities typically are less sensitive to interest
rate changes than higher rated securities, the market prices of high yield/high
risk securities structured as "zero coupon" or "pay-in-kind" securities may be
affected to a greater extent by interest rate changes.  See Appendix A to this
Statement of Additional Information for further information regarding high
yield/high risk securities.  For instance, adverse publicity and investor
perceptions, whether or not based on fundamental analysis, may decrease the
values and liquidity of high yield securities, especially in a thinly traded
market.  When secondary markets for high yield securities are less liquid than
the market for higher grade securities, it may be more difficult to value the
securities because such valuation may require more research, and elements of
judgment may play a greater role in the valuation because there is less
reliable, objective data available.

     Debt securities are purchased and sold principally in response to current
assessments of future changes in business conditions and the levels of interest
rates on debt/fixed income securities of varying maturities, the availability of
new investment opportunities at higher relative yields, and current evaluations
of an issuer's continuing ability to meet its obligations in the future.  The
average maturity or duration of the debt/fixed income securities in a Fund's
portfolio may vary in response to anticipated changes in interest rates and to
other economic factors. Securities may be bought and sold in anticipation of a
decline or a rise in market interest rates.  In addition, a Fund may sell a
security and purchase another of comparable quality and maturity (usually, but
not always, of a different issuer) at approximately the same time to take
advantage of what are believed to be short-term differentials in values or
yields.
    
LOAN PARTICIPATIONS AND ASSIGNMENTS     
    
     The Balanced Fund may invest in fixed- and floating-rate loans arranged
through private negotiations between an issuer of debt instruments and one or
more financial institutions ("lenders").  Generally, the Fund's investments in
loans are expected to take the form of loan participations and assignments of
portions of loans from third parties.     
    
     Large loans to corporations or governments may be shared or syndicated
among several lenders, usually banks.  The Fund may participate in such
syndicates, or can buy part of a loan, becoming a direct lender. Participations
and assignments involve special types of risk, including limited marketability
and the risks of being a lender.  See "Characteristics and Risks of Securities 
and Investment Techniques--Illiquid Securities" in the Class A, B and C and 
Institutional Prospectuses for a discussion of the limits on the Balanced Fund's
investments in loan participations and assignments with limited marketability.
If the Fund purchases a participation, it may only be able to enforce its rights
through the lender, and may assume the credit risk of the lender in addition to
the borrower. In assignments, the Fund's rights against the borrower may be more
limited than those held by the original lender.
    
DELAYED FUNDING LOANS AND REVOLVING CREDIT FACILITIES     
    
     The Balanced Fund may also enter into, or acquire participations in,
delayed funding loans and revolving credit facilities.  Delayed funding loans
and revolving credit facilities are borrowing arrangements in which the lender
agrees to make loans up to a maximum amount upon demand by the borrower during a
specified term.  A revolving credit facility differs from a delayed funding
loan in that as the borrower repays      

                                       7
<PAGE>
 
    
the loan, an amount equal to the repayment may be borrowed again during the term
of the revolving credit facility. These commitments may have the effect of
requiring the Fund to increase its investment in a company at a time when it
might not otherwise decide to do so (including a time when the company's
financial condition makes it unlikely that such amounts will be repaid).     
    
     The Balanced Fund may acquire a participation interest in delayed funding
loans or revolving credit facilities from a bank or other financial institution.
See "Loan Participations and Assignments." The terms of the participation
require the Fund to make a pro rata share of all loans extended to the borrower
and entitles the Fund to a pro rata share of all payments made by the borrower.
Delayed funding loans and revolving credit facilities usually provide for
floating or variable rates of interest. To the extent that the Fund is committed
to advance additional funds, it will at all times segregate assets, determined
to be liquid by the Adviser or a Portfolio Manager in accordance with procedures
established by the Board of Trustees, in an amount sufficient to meet such
commitments.
    
HYBRID INSTRUMENTS     
    
     The Balanced Fund may invest in "hybrid" or indexed securities.  A hybrid
instrument can combine the characteristics of securities, futures, and options.
For example, the principal amount or interest rate of a hybrid could be tied
(positively or negatively) to the price of some commodity, currency or
securities index or another interest rate (each a "benchmark").  The interest
rate or (unlike most fixed income securities) the principal amount payable at
maturity of a hybrid security may be increased or decreased, depending on
changes in the value of the benchmark.     
    
     Hybrids can be used as an efficient means of pursuing a variety of
investment goals, including currency hedging, duration management, and increased
total return. Hybrids may not bear interest or pay dividends. The value of a
hybrid or its interest rate may be a multiple of a benchmark and, as a result,
may be leveraged and move (up or down) more steeply and rapidly than the
benchmark. These benchmarks may be sensitive to economic and political events,
such as commodity shortages and currency devaluations, which cannot be readily
foreseen by the purchaser of a hybrid. Under certain conditions, the redemption
value of a hybrid could be zero. Thus, an investment in a hybrid may entail
significant market risks that are not associated with a similar investment in a
traditional, U.S. dollar-denominated bond that has a fixed principal amount and
pays a fixed rate or floating rate of interest. The purchase of hybrids also
exposes the Fund to the credit risk of the issuer of the hybrids. These risks
may cause significant fluctuations in the net asset value of the Fund.
Accordingly, the Fund will not invest more than 5% of its assets (taken at
market value at the time of investment) in hybrid instruments.
    
     Certain issuers of structured products such as hybrid instruments may be
deemed to be investment companies as defined in the 1940 Act.  As a result, the
Fund's investments in these products will be subject to limits applicable to
investments in investment companies and may be subject to restrictions contained
in the 1940 Act.     
    
CATASTROPHE BONDS     
    
     The Balanced Fund may invest in "catastrophe bonds."  Catastrophe bonds are
fixed income securities, for which the return of  principal and payment of
interest is contingent on the non-occurrence of a specific "trigger"
catastrophic event, such as a hurricane or an earthquake.  They may be issued by
government agencies, insurance companies, reinsurers, special purpose
corporations or other on-shore or off-shore entities.  If a trigger event causes
losses exceeding a specific amount in the geographic region and time period
specified in a bond, a Fund investing in the bond may lose a portion or all of
its principal invested in the bond.  If no trigger event occurs, the Fund will
recover its principal plus interest.  For some catastrophe bonds, the trigger
event or losses may be based on companywide losses, index-portfolio losses,
industry indices or readings of scientific instruments rather than specified
actual losses.  Often the catastrophe bonds provide for extensions of maturity
that are mandatory, or optional at the discretion of the issuer, in order to
process      

                                       8
<PAGE>
 
    
and audit loss claims in those cases where a trigger event has, or possibly has,
occurred. In addition to the specified trigger events, catastrophe bonds may
also expose the Fund to certain unanticipated risks including but not limited to
issuer (credit) default, adverse regulatory or jurisdictional interpretations
and adverse tax consequences.     
    
     Catastrophe bonds are a relatively new type of financial instrument.  As
such, there is no significant trading history of these securities, and there can
be no assurance that a liquid market in these instruments will develop.  See
"Characteristics and Risks of Securities and Investment Techniques--Illiquid
Securities" in the Class A, B and C and Institutional Prospectuses. Lack of a
liquid market may impose the risk of higher transaction costs and the
possibility that the Balanced Fund may be forced to liquidate positions when it
would not be advantageous to do so. Catastrophe bonds are typically rated, and
the Fund will only invest in catastrophe bonds that meet the credit quality
requirements for the Fund.

PARTICIPATION ON CREDITORS COMMITTEES
    
     A Fund may from time to time participate on committees formed by creditors
to negotiate with the management of financially troubled issuers of securities
held by the Fund.  Such participation may subject a Fund to expenses such as
legal fees and may make the Fund an "insider" of the issuer for purposes of the
federal securities laws, and therefore may restrict the Fund's ability to trade
in or acquire additional positions in a particular security when it might
otherwise desire to do so.  Participation by a Fund on such committees also may
expose the Fund to potential liabilities under the federal bankruptcy laws or
other laws governing the rights of creditors and debtors.  A Fund would
participate on such committees only when the Adviser and the relevant Portfolio
Manager believe that such participation is necessary or desirable to enforce the
Fund's rights as a creditor or to protect the value of securities held by the
Fund.  


VARIABLE AND FLOATING RATE SECURITIES

     Variable and floating rate securities provide for a periodic adjustment in
the interest rate paid on the obligations.  The terms of such obligations must
provide that interest rates are adjusted periodically based upon an interest
rate adjustment index as provided in the respective obligations.  The adjustment
intervals may be regular, and range from daily up to annually, or may be event
based, such as based on a change in the prime rate.

     Certain of the Funds may invest in floating rate debt instruments
("floaters").  The interest rate on a floater is a variable rate which is tied
to another interest rate, such as a money-market index or U.S. Treasury bill
rate.  The interest rate on a floater resets periodically, typically every six
months.  Because of the interest rate reset feature, floaters provide a Fund
with a certain degree of protection against rises in interest rates, but
generally do not allow the Fund to participate fully in appreciation resulting
from any general decline in interest rates.

     Certain Funds may also invest in inverse floating rate debt instruments
("inverse floaters"). The interest rate on an inverse floater resets in the
opposite direction from the market rate of interest to which the inverse floater
is indexed.  An inverse floating rate security generally will exhibit greater
price volatility than a fixed rate obligation of similar credit quality.  See
"Mortgage-Related and Asset-Backed Securities" below.

MORTGAGE-RELATED AND ASSET-BACKED SECURITIES

     Mortgage-related securities are interests in pools of residential or
commercial mortgage loans, including mortgage loans made by savings and loan
institutions, mortgage bankers, commercial banks and others.  Pools of mortgage
loans are assembled as securities for sale to investors by various governmental,
government-related and 

                                       9
<PAGE>
 
private organizations. See "Mortgage Pass-Through Securities" below. Certain
debt securities are also secured with collateral consisting of mortgage-related
securities. See "Collateralized Mortgage Obligations" below.     

     MORTGAGE PASS-THROUGH SECURITIES.  Interests in pools of mortgage-related
securities differ from other forms of debt securities, which normally provide
for periodic payment of interest in fixed amounts with principal payments at
maturity or specified call dates.  Instead, these securities provide a monthly
payment which consists of both interest and principal payments.  In effect,
these payments are a "pass-through" of the monthly payments made by the
individual borrowers on their residential or commercial mortgage loans, net of
any fees paid to the issuer or guarantor of such securities. Additional payments
are caused by repayments of principal resulting from the sale of the underlying
property, refinancing or foreclosure, net of fees or costs which may be
incurred.  Some mortgage-related securities (such as securities issued by the
GNMA) are described as "modified pass-through."  These securities entitle the
holder to receive all interest and principal payments owed on the mortgage pool,
net of certain fees, at the scheduled payment dates regardless of whether or not
the mortgagor actually makes the payment.

     The rate of prepayments on underlying mortgages will affect the price and
volatility of a mortgage-related security, and may have the effect of shortening
or extending the effective maturity of the security beyond what was anticipated
at the time of purchase. To the extent that unanticipated rates of prepayment on
underlying mortgages increase the effective maturity of a mortgage-related
security, the volatility of such security can be expected to increase.

     The principal governmental guarantor of mortgage-related securities is the
GNMA.  GNMA is a wholly owned U.S. Government corporation within the Department
of Housing and Urban Development. GNMA is authorized to guarantee, with the full
faith and credit of the U.S. Government, the timely payment of principal and
interest on securities issued by institutions approved by GNMA (such as savings
and loan institutions, commercial banks and mortgage bankers) and backed by
pools of mortgages insured by the Federal Housing Administration (the "FHA"), or
guaranteed by the Department of Veterans Affairs (the "VA").

     Government-related guarantors (i.e., not backed by the full faith and
credit of the United States Government) include the FNMA and the Federal Home
Loan Mortgage Corporation ("FHLMC"). FNMA is a government-sponsored corporation
owned entirely by private stockholders.  It is subject to general regulation by
the Secretary of Housing and Urban Development.  FNMA purchases conventional
(i.e., not insured or guaranteed by any government agency) residential mortgages
from a list of approved seller/services which include state and federally
chartered savings and loan associations, mutual savings banks, commercial banks,
and credit unions and mortgage bankers.  Pass-through securities issued by FNMA
are guaranteed as to timely payment of principal and interest by FNMA but are
not backed by the full faith and credit of the United States Government.

     FHLMC was created by Congress in 1970 for the purpose of increasing the
availability of mortgage credit for residential housing.  It is a government-
sponsored corporation formerly owned by the twelve Federal Home Loan Banks and
now owned entirely by private stockholders.  FHLMC issues Participation
Certificates ("PCs") which represent interests in conventional mortgages from
FHLMC's national portfolio. FHLMC guarantees the timely payment of interest and
ultimate collection of principal, but PCs are not backed by the full faith and
credit of the United States Government.

     Commercial banks, savings and loan institutions, private mortgage insurance
companies, mortgage bankers and other secondary market issuers also create pass-
through pools of conventional residential mortgage loans.  Such issuers may, in
addition, be the originators and/or services of the underlying mortgage loans as
well as the guarantors of the mortgage-related securities.  Pools created by
such non-governmental issuers generally offer a higher rate of interest than
government and government-related pools because there are no direct or indirect
government or agency guarantees of payments in the former pools. However, timely
payment of interest and principal of these pools may be supported by various
forms of insurance or guarantees, including individual loan, title, pool and
hazard insurance and letters of credit.  The insurance and guarantees are issued
by governmental entities, private insurers and the mortgage poolers.  Such
insurance and guarantees, and the creditworthiness of the issuers thereof, will
be considered 

                                       10
<PAGE>
 
in determining whether a mortgage-related security meets the Trust's investment
quality standards. There can be no assurance that the private insurers or
guarantors can meet their obligations under the insurance policies or guarantee
arrangements. A Fund may buy mortgage-related securities without insurance or
guarantees if, through an examination of the loan experience and practices of
the originator/servicers and poolers, the Portfolio Manager determines that the
securities meet the Fund's quality standards. Although the market for such
securities is becoming increasingly liquid, securities issued by certain private
organizations may not be readily marketable. A Fund will not purchase mortgage-
related securities or any other assets which in the Portfolio Manager's opinion
are illiquid if, as a result, more than 15% of the value of the Fund's net
assets (taken at market value at the time of investment) will be invested in
illiquid securities.

     Mortgage-related securities that are issued or guaranteed by the U.S.
Government, its agencies or instru  mentalities, are not subject to a Fund's
industry concentration restrictions, see "Investment Restrictions," by virtue of
the exclusion from that test available to all U.S. Government securities.  In
the case of privately issued mortgage-related securities, the Funds take the
position that mortgage-related securities do not represent interests in any
particular "industry" or group of industries.  The assets underlying such
securities may be represented by a portfolio of first lien residential mortgages
(including both whole mortgage loans and mortgage participation interests) or
portfolios of mortgage pass-through securities issued or guaranteed by GNMA,
FNMA or FHLMC. Mortgage loans underlying a mortgage-related security may in turn
be insured or guaranteed by the FHA or the VA.  In the case of private issue
mortgage-related securities whose underlying assets are neither U.S. Government
securities nor U.S. Government-insured mortgages, to the extent that real
properties securing such assets may be located in the same geographical region,
the security may be subject to a greater risk of default than other comparable
securities in the event of adverse economic, political or business developments
that may affect such region and, ultimately, the ability of residential
homeowners to make payments of principal and interest on the underlying
mortgages.

     COLLATERALIZED MORTGAGE OBLIGATIONS ("CMOS").  A CMO is a hybrid between a
mortgage-backed bond and a mortgage pass-through security.  Similar to a bond,
interest and prepaid principal is paid, in most cases, semi-annually.  CMOs may
be collateralized by whole mortgage loans, but are more typically collateralized
by portfolios of mortgage pass-through securities guaranteed by GNMA, FHLMC, or
FNMA, and their income streams.

     CMOs are structured into multiple classes, each bearing a different stated
maturity.  Actual maturity and average life will depend upon the prepayment
experience of the collateral.  CMOs provide for a modified form of call
protection through a de facto breakdown of the underlying pool of mortgages
                     --------                                              
according to how quickly the loans are repaid.  Monthly payment of principal
received from the pool of underlying mortgages, including prepayments, is first
returned to investors holding the shortest maturity class.  Investors holding
the longer maturity classes receive principal only after the first class has
been retired.  An investor is partially guarded against a sooner than desired
return of principal because of the sequential payments.

     In a typical CMO transaction, a corporation ("issuer") issues multiple
series (e.g., A, B, C, Z) of CMO bonds ("Bonds").  Proceeds of the Bond offering
are used to purchase mortgages or mortgage pass-through certificates
("Collateral").  The Collateral is pledged to a third party trustee as security
for the Bonds.  Principal and interest payments from the Collateral are used to
pay principal on the Bonds in the order A, B, C, Z.  The Series A, B, and C
Bonds all bear current interest.  Interest on the Series Z Bond is accrued and
added to principal and a like amount is paid as principal on the Series A, B, or
C Bond currently being paid off.  When the Series A, B, and C Bonds are paid in
full, interest and principal on the Series Z Bond begin to be paid currently.
With some CMOs, the issuer serves as a conduit to allow loan originators
(primarily builders or savings and loan associations) to borrow against their
loan portfolios.

     FHLMC COLLATERALIZED MORTGAGE OBLIGATIONS.  FHLMC CMOs are debt obligations
of FHLMC issued in multiple classes having different maturity dates which are
secured by the pledge of a pool of conventional mortgage loans purchased by
FHLMC.  Unlike FHLMC PCs, payments of principal and interest on the CMOs are
made semi-annually, as opposed to monthly.  The amount of principal payable on
each semi-annual payment date is determined in accordance with FHLMC's mandatory
sinking fund schedule, which in turn, is equal to approximately 100% of 

                                       11
<PAGE>
 
FHA prepayment experience applied to the mortgage collateral pool. All sinking
fund payments in the CMOs are allocated to the retirement of the individual
classes of bonds in the order of their stated maturities. Payment of principal
on the mortgage loans in the collateral pool in excess of the amount of FHLMC's
minimum sinking fund obligation for any payment date are paid to the holders of
the CMOs as additional sinking fund payments. Because of the "pass-through"
nature of all principal payments received on the collateral pool in excess of
FHLMC's minimum sinking fund requirement, the rate at which principal of the
CMOs is actually repaid is likely to be such that each class of bonds will be
retired in advance of its scheduled maturity date.

     If collection of principal (including prepayments) on the mortgage loans
during any semi-annual payment period is not sufficient to meet FHLMC's minimum
sinking fund obligation on the next sinking fund payment date, FHLMC agrees to
make up the deficiency from its general funds.

     Criteria for the mortgage loans in the pool backing the FHLMC CMOs are
identical to those of FHLMC PCS.  FHLMC has the right to substitute collateral
in the event of delinquencies and/or defaults.

     COMMERCIAL MORTGAGE-BACKED SECURITIES. Commercial Mortgage-Backed
 Securities include securities that reflect an interest in, and are secured by,
 mortgage loans on commercial real property. The market for commercial mortgage-
 backed securities developed more recently and in terms of total outstanding
 principal amount of issues is relatively small compared to the market for
 residential single-family mortgage-backed securities. Many of the risks of
 investing in commercial mortgage-backed securities reflect the risks of
 investing in the real estate securing the underlying mortgage loans. These
 risks reflect the effects of local and other economic conditions on real estate
 markets, the ability of tenants to make loan payments, and the ability of a
 property to attract and retain tenants. Commercial mortgage-backed securities
 may be less liquid and exhibit greater price volatility than other types of
 mortgage- or asset-backed securities.

     OTHER MORTGAGE-RELATED SECURITIES.  Other mortgage-related securities
include securities other than those described above that directly or indirectly
represent a participation in, or are secured by and payable from, mortgage loans
on real property, including CMO residuals or stripped mortgage-backed
securities. Other mortgage-related securities may be equity or debt securities
issued by agencies or instrumentalities of the U.S. Government or by private
originators of, or investors in, mortgage loans, including savings and loan
associations, homebuilders, mortgage banks, commercial banks, investment banks,
partnerships, trusts and special purpose entities of the foregoing.

     CMO RESIDUALS.  CMO residuals are mortgage securities issued by agencies or
instrumentalities of the U.S. Government or by private originators of, or
investors in, mortgage loans, including savings and loan associations,
homebuilders, mortgage banks, commercial banks, investment banks and special
purpose entities of the foregoing.

     The cash flow generated by the mortgage assets underlying a series of CMOs
is applied first to make required payments of principal and interest on the CMOs
and second to pay the related administrative expenses of the issuer.  The
residual in a CMO structure generally represents the interest in any excess cash
flow remaining after making the foregoing payments.  Each payment of such excess
cash flow to a holder of the related CMO residual represents income and/or a
return of capital.  The amount of residual cash flow resulting from a CMO will
depend on, among other things, the characteristics of the mortgage assets, the
coupon rate of each class of CMO, prevailing interest rates, the amount of
administrative expenses and the prepayment experience on the mortgage assets.
In particular, the yield to maturity on CMO residuals is extremely sensitive to
prepayments on the related underlying mortgage assets, in the same manner as an
IO class of stripped mortgage-backed securities. See "Other Mortgage-Related
Securities--Stripped Mortgage-Backed Securities."  In addition, if a series of a
CMO includes a class that bears interest at an adjustable rate, the yield to
maturity on the related CMO residual will also be extremely sensitive to changes
in the level of the index upon which interest rate adjustments are based.  As
described below with respect to stripped mortgage-backed securities, in certain
circumstances a Fund may fail to recoup some or all of its initial investment in
a CMO residual.

                                       12
<PAGE>
 
     CMO residuals are generally purchased and sold by institutional investors
through several investment banking firms acting as brokers or dealers.  The CMO
residual market has developed fairly recently and CMO residuals currently may
not have the liquidity of other more established securities trading in other
markets. Transactions in CMO residuals are generally completed only after
careful review of the characteristics of the securities in question. In
addition, CMO residuals may, or pursuant to an exemption therefrom, may not,
have been registered under the Securities Act of 1933, as amended (the "1933
Act"). CMO residuals, whether or not registered under the 1933 Act, may be
subject to certain restrictions on transferability, and may be deemed "illiquid"
and subject to a Fund's limitations on investment in illiquid securities.

     STRIPPED MORTGAGE-BACKED SECURITIES.  Stripped mortgage-backed securities
("SMBS") are derivative multi-class mortgage securities.  SMBS may be issued by
agencies or instrumentalities of the U.S. Government, or by private originators
of, or investors in, mortgage loans, including savings and loan associations,
mortgage banks, commercial banks, investment banks and special purpose entities
of the foregoing.

     SMBS are usually structured with two classes that receive different
proportions of the interest and principal distributions on a pool of mortgage
assets.  A common type of SMBS will have one class receiving some of the
interest and most of the principal from the mortgage assets, while the other
class will receive most of the interest and the remainder of the principal.  In
the most extreme case, one class will receive all of the interest (the "IO"
class), while the other class will receive all of the principal (the "PO"
class).  The yield to maturity on an IO class is extremely sensitive to the rate
of principal payments (including prepayments) on the related underlying mortgage
assets, and a rapid rate of principal payments may have a material adverse
effect on a Fund's yield to maturity from these securities.  If the underlying
mortgage assets experience greater than anticipated prepayments of principal,
the Fund may fail to recoup some or all of its initial investment in these
securities even if the security is in one of the highest rating categories.

     Although SMBS are purchased and sold by institutional investors through
several investment banking firms acting as brokers or dealers, these securities
were developed fairly recently. As a result, established trading markets have
not yet developed and, accordingly, these securities may be deemed "illiquid"
and subject to a Fund's limitations on investment in illiquid securities.

     OTHER ASSET-BACKED SECURITIES.  Similarly, the Adviser and Portfolio
Managers expect that other asset-backed securities (unrelated to mortgage loans)
will be offered to investors in the future and may be purchased by the Funds
that may invest in mortgage-related securities.  Several types of asset-backed
securities have already been offered to investors, including Certificates for
Automobile Receivables/SM/ ("CARS/SM/").  CARS/SM/ represent undivided
fractional interests in a trust whose assets consist of a pool of motor vehicle
retail installment sales contracts and security interests in the vehicles
securing the contracts.  Payments of principal and interest on CARS/SM/ are
passed through monthly to certificate holders, and are guaranteed up to certain
amounts and for a certain time period by a letter of credit issued by a
financial institution unaffiliated with the trustee or originator of the trust.
An investor's return on CARS/SM/ may be affected by early prepayment of
principal on the underlying vehicle sales contracts.  If the letter of credit is
exhausted, the trust may be prevented from realizing the full amount due on a
sales contract because of state law requirements and restrictions relating to
foreclosure sales of vehicles and the obtaining of deficiency judgments
following such sales or because of depreciation, damage or loss of a vehicle,
the application of federal and state bankruptcy and insolvency laws, or other
factors.  As a result, certificate holders may experience delays in payments or
losses if the letter of credit is exhausted.

     Consistent with a Fund's investment objectives and policies, the Adviser
and Portfolio Manager also may invest in other types of asset-backed securities.

                                       13
<PAGE>
 
FOREIGN SECURITIES

     The Emerging Markets, Structured Emerging Markets, Tax-Efficient Structured
Emerging Markets, International Developed, International Growth and
International Funds may invest in U.S. dollar or foreign currency-denominated
corporate debt securities of foreign issuers; preferred securities of foreign
issuers; certain foreign bank obligations; and U.S. dollar- or foreign currency-
denominated obligations of foreign governments or their subdivisions, agencies
and instrumentalities, international agencies and supranational entities.  The
Emerging Markets, Structured Emerging Markets, Tax-Efficient Structured Emerging
Markets, International Developed, International Growth,  International and
Precious Metals Funds may also invest in common stocks issued by foreign
companies.  The Precious Metals Fund may invest primarily in securities of
foreign issuers, securities denominated in foreign currencies, securities
principally traded on securities markets outside of the United States and in
securities of foreign issuers that are traded on U.S. securities markets.  The
Renaissance, Core Equity, Mid-Cap Equity, Growth, Target, Opportunity and
Innovation Funds each may invest up to 15% of their respective net assets in
securities which are traded principally in securities markets outside the United
States (Eurodollar certificates of deposit are excluded for purposes of these
limitations), and (except for the Core Equity and Mid-Cap Equity Funds) may
invest without limit in securities of foreign issuers that are traded in U.S.
securities markets.  The Enhanced Equity Fund may invest in common stock of
foreign issuers if it is included in the index from which stocks are selected.
The Balanced Fund may invest up to 20% of its assets allocated for investment in
fixed income securities in securities denominated in foreign currencies, and may
invest beyond this limit in U.S. dollar-denominated securities of foreign
issuers.
    
     Each of the Funds may invest in American Depository Receipts ("ADRs").
The Renaissance, Growth, Target, Core Equity, Mid-Cap Equity, Opportunity,
Innovation, Emerging Markets, Structured Emerging Markets, Tax-Efficient
Structured Emerging Markets, International Developed,  International Growth,
International and Precious Metals Funds may invest in European Depository
Receipts ("EDRs") or Global Depository Receipts ("GDRs").  ADRs are dollar-
denominated receipts issued generally by domestic banks and represent the
deposit with the bank of a security of a foreign issuer.  EDRs are foreign
currency-denominated receipts similar to ADRs and are issued and traded in
Europe, and are publicly traded on exchanges or over-the-counter in the United
States.  GDRs may be offered privately in the United States and also trade in
public or private markets in other countries.  ADRs, EDRs and GDRs may be issued
as sponsored or unsponsored programs.  In sponsored programs, an issuer has made
arrangements to have its securities trade in the form of ADRs, EDRs or GDRs.  In
unsponsored programs, the issuer may not be directly involved in the creation of
the program.  Although regulatory requirements with respect to sponsored and
unsponsored programs are generally similar, in some cases it may be easier to
obtain financial information from an issuer that has participated in the
creation of a sponsored program.     

     Investing in the securities of foreign issuers involves special risks and
considerations not typically associated with investing in U.S. companies.  These
include: differences in accounting, auditing and financial reporting standards,
generally higher commission rates on foreign portfolio transactions, the
possibility of expropriation or confiscatory taxation, adverse changes in
investment or exchange control regulations (which may include suspension of the
ability to transfer currency from a country), political instability which can
affect U.S. investments in foreign countries and potential restrictions on the
flow of international capital.  In addition, foreign securities and dividends
and interest payable on those securities may be subject to foreign taxes,
including taxes withheld from payments on those securities.  Foreign securities
often trade with less frequency and volume than domestic securities and
therefore may exhibit greater price volatility.  Changes in foreign exchange
rates will affect the value of those securities which are denominated or quoted
in currencies other than the U.S. dollar.

     The risks of investing in foreign securities are particularly high when
securities of issuers based in developing (or ''emerging market'') countries are
involved.  Investing in emerging market countries involves certain risks not
typically associated with investing in U.S. securities, and imposes risks
greater than, or in addition to, risks of investing in foreign, developed
countries.  These risks include: greater risks of nationalization or
expropriation of assets or confiscatory taxation; currency devaluations and
other currency exchange rate fluctuations; greater social, 

                                       14
<PAGE>
 
economic and political uncertainty and instability (including the risk of war);
more substantial government involvement in the economy; higher rates of
inflation; less government supervision and regulation of the securities markets
and participants in those markets; controls on foreign investment and
limitations on repatriation of invested capital and on the Fund's ability to
exchange local currencies for U.S. dollars; unavailability of currency hedging
techniques in certain emerging market countries; the fact that companies in
emerging market countries may be smaller, less seasoned and newly organized
companies; the difference in, or lack of, auditing and financial reporting
standards, which may result in unavailability of material information about
issuers; the risk that it may be more difficult to obtain and/or enforce a
judgment in a court outside the United States; and greater price volatility,
substantially less liquidity and significantly smaller market capitalization of
securities markets.

     SPECIAL RISKS OF INVESTING IN RUSSIAN AND OTHER EASTERN EUROPEAN
SECURITIES.  The International, International Growth, Emerging Markets, Tax-
Efficient Structured Emerging Markets and Structured Emerging Markets Funds may
invest a portion of their assets in securities of issuers located in Russia and
in other Eastern European countries.  The political, legal and operational risks
of investing in the securities of Russian and other Eastern European issuers,
and of having assets custodied within these countries, may be particularly
acute. Investments in Eastern European countries may involve acute risks of
nationalization, expropriation and confiscatory taxation. The communist
governments of a number of Eastern European countries expropriated large amounts
of private property in the past, in many cases without adequate compensation,
and there can be no assurance that such expropriation will not occur in the
future.  Also, certain Eastern European countries, which do not have market
economies, are characterized by an absence of developed legal structures
governing private and foreign investments and private property.

     In addition, governments in certain Eastern European countries may require
that a governmental or quasi-governmental authority act as custodian of a Fund's
assets invested in such country. To the extent such governmental or quasi-
governmental authorities do not satisfy the requirements of the 1940 Act to act
as foreign custodians of the Fund's cash and securities, the Fund's investment
in such countries may be limited or may be required to be effected through
intermediaries.  The risk of loss through governmental confiscation may be
increased in such circumstances.

     Investments in securities of Russian issuers may involve a particularly
high degree of risk and special considerations not typically associated with
investing in U.S. and other more developed markets, many of which stem from
Russia's continuing political and economic instability and the slow-paced
development of its market economy. Investments in Russian securities should be
considered highly speculative.  Such risks and special considerations include:
(a) delays in settling portfolio transactions and the risk of loss arising out
of Russia's system of share registration and custody (see below); (b)
pervasiveness of corruption, insider trading, and crime in the Russian economic
system; (c) difficulties associated in obtaining accurate market valuations of
many Russian securities, based partly on the limited amount of publicly
available information; (d) the general financial condition of Russian companies,
which may involve particularly large amounts of inter-company debt; and (e) the
risk that the Russian tax system will not be reformed to prevent inconsistent,
retroactive and/or exorbitant taxation or, in the alternative, the risk that a
reformed tax system may result in the inconsistent and unpredictable enforcement
of the new tax laws. Also, there is the risk that the government of Russia or
other executive or legislative bodies may decide not to continue to support the
economic reform programs implemented since the dissolution of the Soviet Union
and could follow radically different political and/or economic policies to the
detriment of investors, including non-market-oriented policies such as the
support of certain industries at the expense of other sectors or investors, a
return to the centrally planned economy that existed prior to the dissolution of
the Soviet Union, or the nationalization of privatized enterprises.

     A risk of particular note with respect to direct investment in Russian
securities is the way in which ownership of shares of companies is normally
recorded.  Ownership of shares (except where shares are held through
depositories that meet the requirements of the 1940 Act) is defined according to
entries in the company's share register and normally evidenced by extracts from
the register or, in certain limited circumstances, by formal share certificates.
However, there is no central registration system for shareholders and these
services are carried out by 

                                       15
<PAGE>
 
the companies themselves or by registrars located throughout Russia. These
registrars are not necessarily subject to effective state supervision nor are
they licensed with any governmental entity. It is possible for a Fund to lose
its registration through fraud, negligence or even mere oversight. While a Fund
will endeavor to ensure that its interest continues to be appropriately
recorded, which may involve a custodian or other agent inspecting the share
register and obtaining extracts of share registers through regular
confirmations, these extracts have no legal enforceability and it is possible
that subsequent illegal amendment or other fraudulent act may deprive the Fund
of its ownership rights or improperly dilute its interests. In addition, while
applicable Russian regulations impose liability on registrars for losses
resulting from their errors, it may be difficult for a Fund to enforce any
rights it may have against the registrar or issuer of the securities in the
event of loss of share registration.

     Also, although a Russian public enterprise with more than 500 shareholders
is required by law to contract out the maintenance of its shareholder register
to an independent entity that meets certain criteria, this regulation has not
always been strictly enforced in practice.  Because of this lack of
independence, management of a company may be able to exert considerable
influence over who can purchase and sell the company's shares by illegally
instructing the registrar to refuse to record transactions in the share
register.  In addition, so-called "financial-industrial groups" have emerged in
recent years that seek to deter outside investors from interfering in the
management of companies they control.  These practices may prevent a Fund from
investing in the securities of certain Russian companies deemed suitable by the
Fund's Portfolio Manager.  Further, this also could cause a delay in the sale of
Russian securities held by a Fund if a potential purchaser is deemed unsuitable,
which may expose the Fund to potential loss on the investment.

FOREIGN CURRENCIES

     The Renaissance, Core Equity, Mid-Cap Equity, Growth, Target, Opportunity,
Innovation, International, International Developed, International Growth,
Emerging Markets, Structured Emerging Markets, Tax-Efficient Structured Emerging
Markets, Precious Metals and Balanced Funds may enter into forward foreign
currency exchange contracts to reduce the risks of adverse changes in foreign
exchange rates.  In addition, the Emerging Markets, Structured Emerging Markets,
Tax-Efficient Structured Emerging Markets, International, International
Developed, International Growth, Balanced and Precious Metals Funds may buy and
sell foreign currency futures contracts and options on foreign currencies and
foreign currency futures.

     A forward foreign currency exchange contract involves an obligation to
purchase or sell a specific currency at a future date, which may be any fixed
number of days from the date of the contract agreed upon by the parties, at a
price set at the time of the contract. By entering into a forward foreign
currency exchange contract, the fund "locks in" the exchange rate between the
currency it will deliver and the currency it will receive for the duration of
the contract. As a result, a Fund reduces its exposure to changes in the value
of the currency it will deliver and increases its exposure to changes in the
value of the currency it will exchange into. Contracts to sell foreign
currencies would limit any potential gain which might be realized by a Fund if
the value of the hedged currency increases. A Fund may enter into these
contracts for the purpose of hedging against foreign exchange risks arising from
the Funds' investment or anticipated investment in securities denominated in
foreign currencies. Suitable hedging transactions may not be available in all
circumstances. Also, such hedging transactions may not be successful and may
eliminate any chance for a Fund to benefit from favorable fluctuations in
relevant foreign currencies.

     The International, International Developed, International Growth, Emerging
Markets, Structured Emerging Markets and Tax-Efficient Structured Emerging
Markets Funds may also enter into forward foreign currency exchange contracts
for purposes of increasing exposure to a foreign currency or to shift exposure
to foreign currency fluctuations from one currency to another.  To the extent
that they do so, the International, International Developed, Emerging Markets,
Structured Emerging Markets and Tax-Efficient Structured Emerging Markets Funds
will be subject to the additional risk that the relative value of currencies
will be different than anticipated by the particular Fund's Portfolio Manager.
A Fund may use one currency (or a basket of currencies) to hedge against adverse
changes in the value of another currency (or a basket of currencies) when
exchange rates between the two currencies 

                                       16
<PAGE>
 
are positively correlated. A Fund will segregate assets determined to be liquid
by the Adviser or a Portfolio Manager in accordance with procedures established
by the Board of Trustees to cover forward currency contracts entered into for
non-hedging purposes. The Funds may also use foreign currency futures contracts
and related options on currencies for the same reasons for which forward foreign
currency exchange contracts are used.
    
     Special Risks Associated with the Introduction of the Euro. The
introduction of a single currency, the euro, on January 1, 1999 for
participating European nations in the European Economic and Monetary Union
presents unique uncertainties for European securities in the markets in which
they trade and with respect to the operation of the Funds that invest in
securities denominated in European currencies and other European securities. The
introduction of the euro has and will result in the redenomination of European
debt and equity securities over a period of time. Uncertainties raised by the
introduction of the euro include whether the payment and operational systems of
banks and other financial institutions will be ready by the scheduled launch
date, the creation of suitable clearing and settlement payment systems for the
new currency, the valuation and legal treatment of outstanding financial
contracts after January 1, 1999 that refer to existing currencies rather than
the euro and adverse accounting or tax consequences that may arise from the
transition to the euro. These or other factors could cause market disruptions
and could adversely affect the value of securities and foreign currencies held
by the Funds.

BANK OBLIGATIONS

     Bank obligations in which the Funds may invest include certificates of
deposit, bankers' acceptances, and fixed time deposits.  Certificates of deposit
are negotiable certificates issued against funds deposited in a commercial bank
for a definite period of time and earning a specified return.  Bankers'
acceptances are negotiable drafts or bills of exchange, normally drawn by an
importer or exporter to pay for specific merchandise, which are "accepted" by a
bank, meaning, in effect, that the bank unconditionally agrees to pay the face
value of the instrument on maturity. Fixed time deposits are bank obligations
payable at a stated maturity date and bearing interest at a fixed rate.  Fixed
time deposits may be withdrawn on demand by the investor, but may be subject to
early withdrawal penalties which vary depending upon market conditions and the
remaining maturity of the obligation.  There are no contractual restrictions on
the right to transfer a beneficial interest in a fixed time deposit to a third
party, although there is no market for such deposits.  A Fund will not invest in
fixed time deposits which (1) are not subject to prepayment or (2) provide for
withdrawal penalties upon prepayment (other than overnight deposits) if, in the
aggregate, more than 15% of its net assets (taken at market value at the time of
investment) would be invested in such deposits, repurchase agreements maturing
in more than seven days and other illiquid assets.  Each Fund may also hold
funds on deposit with its sub-custodian bank in an interest-bearing account for
temporary purposes.

     Each Fund limits its investments in United States bank obligations to
obligations of United States banks (including foreign branches) which have more
than $1 billion in total assets at the time of investment and are members of the
Federal Reserve System or are examined by the Comptroller of the Currency or
whose deposits are insured by the Federal Deposit Insurance Corporation.  A Fund
also may invest in certificates of deposit of savings and loan associations
(federally or state chartered and federally insured) having total assets in
excess of $1 billion.

     The Renaissance, Growth, Target, Core Equity, Mid-Cap Equity, Opportunity,
Innovation, International, Emerging Markets, Structured Emerging Markets, Tax-
Efficient Structured Emerging Markets, International Developed, International
Growth, Precious Metals and Balanced Funds limit their investments in foreign
bank obligations to obligations of foreign banks (including United States
branches of foreign banks) which at the time of investment (i) have more than
$10 billion, or the equivalent in other currencies, in total assets; (ii) are
among the 75 largest foreign banks in the world in terms of total assets; (iii)
have branches or agencies (limited purpose offices which do not offer all
banking services) in the United States; and (iv) in the opinion of the relevant
Portfolio Manager, are of an investment quality comparable to obligations of
United States banks in which the Funds may invest. Subject to each Fund's
limitation on concentration of no more than 25% of its assets in the securities
of issuers in a particular industry, there is no limitation on the amount of a
Fund's assets which may be invested in obligations of foreign banks which meet
the conditions set forth above.

                                       17
<PAGE>
 
     Obligations of foreign banks involve certain risks associated with
investing in foreign securities described under "Foreign Securities" above,
including the possibilities that their liquidity could be impaired because of
future political and economic developments, that their obligations may be less
marketable than comparable obligations of United States banks, that a foreign
jurisdiction might impose withholding taxes on interest income payable on those
obligations, that foreign deposits may be seized or nationalized, that foreign
governmental restrictions such as exchange controls may be adopted which might
adversely affect the payment of principal and interest on those obligations and
that the selection of those obligations may be more difficult because there may
be less publicly available information concerning foreign banks or the
accounting, auditing and financial reporting standards, practices and
requirements applicable to foreign banks may differ from those applicable to
United States banks. Foreign banks are not generally subject to examination by
any U.S. Government agency or instrumentality.

COMMERCIAL PAPER

     All Funds may invest in commercial paper. Commercial paper represents
short-term unsecured promissory notes issued in bearer form by banks or bank
holding companies, corporations and finance companies.  The commercial paper
purchased by the Funds consists of U.S. dollar-denominated obligations of
domestic issuers, or, additionally for the Renaissance, Growth, Target, Core
Equity, Mid-Cap Equity, Opportunity, Innovation, Emerging Markets, Structured
Emerging Markets, Tax-Efficient Structured Emerging Markets, International,
International Developed and International Growth, Precious Metals and Balanced
Funds, foreign currency-denominated obligations of domestic or foreign issuers
which, at the time of investment, are (i) rated "P-1" or "P-2" by Moody's or "A-
1" or "A-2" or  better by S&P, (ii) issued or guaranteed as to principal and
interest by issuers or guarantors having an existing debt security rating of "A"
or better by Moody's or "A" or better by S&P, or (iii) securities which, if not
rated, are, in the opinion of the Portfolio Manager, of an investment quality
comparable to rated commercial paper in which the Fund may invest.  The rate of
return on commercial paper may be linked or indexed to the level of exchange
rates between the U.S. dollar and a foreign currency or currencies.

DERIVATIVE INSTRUMENTS

     The following describes certain derivative instruments and products in
which the Funds may invest (to the extent described in the Prospectuses and
under "Investment Restrictions" below) and risks associated therewith.

     The Funds might not employ any of the strategies described below, and no
assurance can be given that any strategy used will succeed. Also, suitable
derivative and/or hedging transactions may not be available in all circumstances
and there can be no assurance that a Fund will be able to identify or employ a
desirable derivative and/or hedging transaction at any time or from time to
time.

     OPTIONS ON SECURITIES AND INDEXES.  A Fund may, to the extent specified for
the Fund in the Prospectuses and under "Investment Restrictions" below, purchase
and sell both put and call options on fixed income or other securities or
indexes in standardized contracts traded on foreign or domestic securities
exchanges, boards of trade, or similar entities, or quoted on National
Association of Securities Dealers Automated Quotations ("NASDAQ") or on a
regulated foreign over-the-counter market, and agreements, sometimes called cash
puts, which may accompany the purchase of a new issue of bonds from a dealer.

     An option on a security (or index) is a contract that gives the holder of
the option, in return for a premium, the right to buy from (in the case of a
call) or sell to (in the case of a put) the writer of the option the security
underlying the option (or the cash value of the index) at a specified exercise
price at any time during the term of the option.  The writer of an option on a
security has the obligation upon exercise of the option to deliver the
underlying security upon payment of the exercise price or to pay the exercise
price upon delivery of the underlying security. Upon exercise, the writer of an
option on an index is obligated to pay the difference between the cash value of
the index and the exercise price multiplied by the specified multiplier for the
index option.  (An index is designed to reflect features of a particular
financial or securities market, a specific group of financial instruments or
securities, or certain economic indicators.)

     A Fund will write call options and put options only if they are "covered."
In the case of a call option on a security, the option is "covered" if the Fund
owns the security underlying the call or has an absolute and immediate right to
acquire that security without additional cash consideration (or, if additional
cash consideration is required, cash or other assets determined to be liquid by
the Portfolio Manager in accordance with procedures established by 

                                       18
<PAGE>
 
the Board of Trustees in such amount are segregated upon conversion or exchange
of other securities held by the Fund. For a call option on an index, the option
is covered if the Fund segregates assets determined to be liquid by the Adviser
or a Portfolio Manager in accordance with procedures established by the Board of
Trustees in an amount equal to the contract value of the index. A call option is
also covered if the Fund holds a call on the same security or index as the call
written where the exercise price of the call held is (i) equal to or less than
the exercise price of the call written, or (ii) greater than the exercise price
of the call written, provided the difference is segregated by the Fund in assets
determined to be liquid by the Adviser or a Portfolio Manager in accordance with
procedures established by the Board of Trustees. A put option on a security or
an index is "covered" if the Fund segregates assets determined to be liquid by
the Adviser or a Portfolio Manager in accordance with procedures established by
the Board of Trustees equal to the exercise price. A put option is also covered
if the Fund holds a put on the same security or index as the put written where
the exercise price of the put held is (i) equal to or greater than the exercise
price of the put written, or (ii) less than the exercise price of the put
written, provided the difference is segregated by the Fund in assets determined
to be liquid by the Adviser or a Portfolio Manager in accordance with procedures
established by the Board of Trustees.

     If an option written by a Fund expires unexercised, the Fund realizes a
capital gain equal to the premium received at the time the option was written.
If an option purchased by a Fund expires unexercised, the Fund realizes a
capital loss equal to the premium paid.  Prior to the earlier of exercise or
expiration, an exchange-traded option may be closed out by an offsetting
purchase or sale of an option of the same series (type, exchange, underlying
security or index, exercise price, and expiration).  There can be no assurance,
however, that a closing purchase or sale transaction can be effected when the
Fund desires.

     A Fund will realize a capital gain from a closing purchase transaction if
the cost of the closing option is less than the premium received from writing
the option, or, if it is more, the Fund will realize a capital loss.  If the
premium received from a closing sale transaction is more than the premium paid
to purchase the option, the Fund will realize a capital gain or, if it is less,
the Fund will realize a capital loss. The principal factors affecting the market
value of a put or a call option include supply and demand, interest rates, the
current market price of the underlying security or index in relation to the
exercise price of the option, the volatility of the underlying security or
index, and the time remaining until the expiration date.

     The premium paid for a put or call option purchased by a Fund is an asset
of the Fund.  The premium received for an option written by a Fund is recorded
as a deferred credit.  The value of an option purchased or written is marked to
market daily and is valued at the closing price on the exchange on which it is
traded or, if not traded on an exchange or no closing price is available, at the
mean between the last bid and asked prices.

     OTC OPTIONS.  The Renaissance, Growth, Target, Opportunity, Innovation,
International, International Growth and Precious Metals may enter into over-the-
counter ("OTC") options transactions only with primary dealers in U.S.
Government securities and only pursuant to agreements that will assure that the
relevant Fund will at all times have the right to repurchase the option written
by it from the dealer at a specified formula price.  The Funds will treat the
amount by which such formula price exceeds the intrinsic value of the option
(i.e., the amount, if any, by which the market price of the underlying security
exceeds the exercise price of the option) as an illiquid investment.

     RISKS ASSOCIATED WITH OPTIONS ON SECURITIES AND INDEXES.  There are several
risks associated with transactions in options on securities and on indexes.  For
example, there are significant differences between the securities and options
markets that could result in an imperfect correlation between these markets,
causing a given transaction not to achieve its objectives.  A decision as to
whether, when and how to use options involves the exercise of skill and
judgment, and even a well-conceived transaction may be unsuccessful to some
degree because of market behavior or unexpected events.

                                       19
<PAGE>
 
     There can be no assurance that a liquid market will exist when a Fund seeks
to close out an option position. If a Fund were unable to close out an option
that it had purchased on a security, it would have to exercise the option in
order to realize any profit or the option may expire worthless.  If a Fund were
unable to close out a covered call option that it had written on a security, it
would not be able to sell the underlying security unless the option expired
without exercise.  As the writer of a covered call option, a Fund forgoes,
during the option's life, the opportunity to profit from increases in the market
value of the security covering the call option above the sum of the premium and
the exercise price of the call.

     If trading were suspended in an option purchased by a Fund, the Fund would
not be able to close out the option.  If restrictions on exercise were imposed,
the Fund might be unable to exercise an option it has purchased. Except to the
extent that a call option on an index written by the Fund is covered by an
option on the same index purchased by the Fund, movements in the index may
result in a loss to the Fund; however, such losses may be mitigated by changes
in the value of the Fund's securities during the period the option was
outstanding.

     FOREIGN CURRENCY OPTIONS.  Each of the Funds that may buy or sell foreign
currencies may buy or sell put and call options on foreign currencies either on
exchanges or in the over-the-counter market.  A put option on a foreign currency
gives the purchaser of the option the right to sell a foreign currency at the
exercise price until the option expires. A call option on a foreign currency
gives the purchaser of the option the right to purchase the currency at the
exercise price until the option expires.  Currency options traded on U.S. or
other exchanges may be subject to position limits which may limit the ability of
a Fund to reduce foreign currency risk using such options.

     FUTURES CONTRACTS AND OPTIONS ON FUTURES CONTRACTS.  A Fund may use
interest rate, foreign currency or index futures contracts, as specified in the
Prospectuses.  An interest rate, foreign currency or index futures contract
provides for the future sale by one party and purchase by another party of a
specified quantity of a financial instru  ment, foreign currency or the cash
value of an index at a specified price and time.

     For instance, futures contract on a securities index (an "Index Future") is
an agreement pursuant to which two parties agree to take or make delivery of an
amount of cash equal to the difference between the value of a securities index
("Index") at the close of the last trading day of the contract and the price at
which the index contract was originally written.  Although the value of an Index
might be a function of the value of certain specified securities, no physical
delivery of these securities is made.  A unit is the value of the relevant Index
from time to time.  Entering into a contract to buy units is commonly referred
to as buying or purchasing a contract or holding a long position in an Index.
Index Futures contracts can be traded through all major commodity brokers.  A
Fund's purchase and sale of Index Futures is limited to contracts and exchanges
which have been approved by the CFTC. A Fund will ordinarily be able to close
open positions on the futures exchange on which Index Futures are then traded at
any time up to and including the expiration day.  As described below, a Fund
will be required to segregate initial margin in the name of the futures broker
upon entering into an Index Future. Variation margin will be paid to and
received from the broker on a daily basis as the contracts are marked to market.
For example, when a Fund has purchased an Index Future and the price of the
relevant Index has risen, that position will have increased in value and the
Fund will receive from the broker a variation margin payment equal to that
increase in value. Conversely, when a Fund has purchased an Index Future and the
price of the relevant Index has declined, the position would be less valuable
and the Fund would be required to make a variation margin payment to the broker.

     The following example illustrates generally the manner in which Index
Futures operate.  The Standard & Poor's 100 Stock Index is composed of 100
selected common stocks, most of which are listed on the New York Stock Exchange.
The S&P 100 Index assigns relative weightings to the common stocks included in
the Index, and the Index fluctuates with changes in the market values of those
common stocks.  In the case of the S&P 100 Index, contracts are to buy or sell
100 units.  Thus, if the value of the S&P 100 Index were $180, one contract
would be worth $18,000 (100 units x $180).  The Index Future specifies that no
delivery of the actual stocks making up the Index will take place.  Instead,
settlement in cash must occur upon the termination of the contract, with the
settlement being the difference between the contract price and the actual level
of the Index at the expiration of the 

                                       20
<PAGE>
 
contract. For example, if a Fund enters into a futures contract to buy 100 units
of the S&P 100 Index at a specified future date at a contract price of $180 and
the S&P 100 Index is at $184 on that future date, the Fund will gain $400 (100
units x gain of $4). If the Fund enters into a futures contract to sell 100
units of the Index at a specified future date at a contract price of $180 and
the S&P 100 Index is at $182 on that future date, the Fund will lose $200 (100
units x loss of $2).

     A public market exists in futures contracts covering a number of Indexes as
well as financial instruments and foreign currencies, including but not limited
to:  the S&P 500; the S&P Midcap 400; the Nikkei 225; the NYSE composite; U.S.
Treasury bonds; U.S. Treasury notes; GNMA Certificates; three-month U.S.
Treasury bills; 90-day commercial paper; bank certificates of deposit;
Eurodollar certificates of deposit; the Australian dollar; the Canadian dollar;
the British pound; the German mark; the Japanese yen; the French franc; the
Swiss franc; the Mexican peso; and certain multinational currencies, such as the
European Currency Unit ("ECU").  It is expected that other futures contracts in
which the Funds may invest will be developed and traded in the future.

     Certain Funds may purchase and write call and put futures options.  Futures
options possess many of the same characteristics as options on securities and
indexes (discussed above).  A futures option gives the holder the right, in
return for the premium paid, to assume a long position (call) or short position
(put) in a futures contract at a specified exercise price at any time during the
period of the option.  Upon exercise of a call option, the holder acquires a
long position in the futures contract and the writer is assigned the opposite
short position.  In the case of a put option, the holder acquires a short
position and the writer is assigned the opposite long position.

     A Fund will only enter into futures contracts and futures options which are
standardized and traded on a U.S. or foreign exchange, board of trade, or
similar entity, or in the case of futures options, for which an established
over-the-counter market exists.

     When a purchase or sale of a futures contract is made by a Fund, the Fund
is required to segregate a specified amount of assets determined to be liquid by
the Adviser or a Portfolio Manager in accordance with procedures established by
the Board of Trustees ("initial margin"). The margin required for a futures
contract is set by the exchange on which the contract is traded and may be
modified during the term of the contract. Margin requirements on foreign
exchanges may be different than U.S. exchanges. The initial margin is in the
nature of a performance bond or good faith deposit on the futures contract which
is returned to the Fund upon termination of the contract, assuming all
contractual obligations have been satisfied. Each Fund expects to earn interest
income on its initial margin deposits. A futures contract held by a Fund is
valued daily at the official settlement price of the exchange on which it is
traded. Each day the Fund pays or receives cash, called "variation margin,"
equal to the daily change in value of the futures contract. This process is
known as "marking to market." Variation margin does not represent a borrowing or
loan by a Fund but is instead a settlement between the Fund and the broker of
the amount one would owe the other if the futures contract expired. In computing
daily net asset value, each Fund will mark to market its open futures positions.

     A Fund is also required to deposit and maintain margin with respect to put
and call options on futures contracts written by it.  Such margin deposits will
vary depending on the nature of the underlying futures contract (and the related
initial margin requirements), the current market value of the option, and other
futures positions held by the Fund.

     Although some futures contracts call for making or taking delivery of the
underlying securities, generally these obligations are closed out prior to
delivery by offsetting purchases or sales of matching futures contracts (i.e.,
with the same exchange, underlying security or index, and delivery month).  If
an offsetting purchase price is less than the original sale price, the Fund
realizes a capital gain, or if it is more, the Fund realizes a capital loss.
Conversely, if an offsetting sale price is more than the original purchase
price, the Fund realizes a capital gain, or if it is less, the Fund realizes a
capital loss.  Any transaction costs must also be included in these
calculations.

                                       21
<PAGE>
 
     LIMITATIONS ON USE OF FUTURES AND FUTURES OPTIONS.  The Funds may enter
into positions in futures contracts and related options for "bona fide hedging"
purposes.  In addition, certain Funds may utilize futures contracts for
investment purposes.  For instance, the Emerging Markets, International
Developed, International, International Growth, Structured Emerging Markets and
Tax-Efficient Structured Emerging Markets Funds may invest to a significant
degree in Index Futures on stock indexes and related options (including those
which may trade outside of the United States) as an alternative to purchasing
individual stocks in order to adjust their exposure to a particular market.
With respect to positions in futures and related options that do not constitute
bona fide hedging positions, a Fund will not enter into a futures contract or
futures option contract if, immediately thereafter, the aggregate initial margin
deposits relating to such positions plus premiums paid by it for open futures
option positions, less the amount by which any such options are "in-the-money,"
would exceed 5% of the Fund's net assets.  A call option is "in-the-money" if
the value of the futures contract that is the subject of the option exceeds the
exercise price.  A put option is "in-the-money" if the exercise price exceeds
the value of the futures contract that is the subject of the option.

     When purchasing a futures contract, a Fund will segregate (and mark-to-
market on a daily basis) assets determined to be liquid by the Adviser or a
Portfolio Manager in accordance with procedures established by the Board of
Trustees that, when added to the amounts deposited with a futures commission
merchant as margin, are equal to the total market value of the futures contract.
Alternatively, the Fund may "cover" its position by purchasing a put option on
the same futures contract with a strike price as high or higher than the price
of the contract held by the Fund.

     When selling a futures contract, a Fund will segregate (and mark-to-market
on a daily basis) assets determined to be liquid by the Adviser or a Portfolio
Manager in accordance with procedures established by the Board of Trustees that
are equal to the market value of the instruments underlying the contract.
Alternatively, the Fund may "cover" its position by owning the instruments
underlying the contract (or, in the case of an Index Future, a portfolio with a
volatility substantially similar to that of the Index on which the futures
contract is based), or by holding a call option permitting the Fund to purchase
the same futures contract at a price no higher than the price of the contract
written by the Fund (or at a higher price if the difference is maintained in
liquid assets with the Trust's custodian).

     When selling a call option on a futures contract, a Fund will segregate
(and mark-to-market on a daily basis) assets determined to be liquid by the
Adviser or a Portfolio Manager in accordance with procedures established by the
Board of Trustees that, when added to the amounts deposited with a futures
commission merchant as margin, equal the total market value of the futures
contract underlying the call option. Alternatively, the Fund may cover its
position by entering into a long position in the same futures contract at a
price no higher than the strike price of the call option, by owning the
instruments underlying the futures contract, or by holding a separate call
option permitting the Fund to purchase the same futures contract at a price not
higher than the strike price of the call option sold by the Fund.

     When selling a put option on a futures contract, a Fund will segregate (and
mark-to-market on a daily basis) assets determined to be liquid by the Adviser
or a Portfolio Manager in accordance with procedures established by the Board of
Trustees that equal the purchase price of the futures contract, less any margin
on deposit. Alternatively, the Fund may cover the position either by entering
into a short position in the same futures contract, or by owning a separate put
option permitting it to sell the same futures contract so long as the strike
price of the purchased put option is the same or higher than the strike price of
the put option sold by the Fund.

     RISKS ASSOCIATED WITH FUTURES AND FUTURES OPTIONS.  There are several risks
associated with the use of futures contracts and futures options as hedging
techniques.  A purchase or sale of a futures contract may result in losses in
excess of the amount invested in the futures contract.  Some of the risk may be
caused by an imperfect correlation between movements in the price of the futures
contract and the price of the security or other investment being hedged.  The
hedge will not be fully effective where there is such imperfect correlation.
For example, if the 

                                       22
<PAGE>
 
price of the futures contract moves more than the price of the hedged security,
a Fund would experience either a loss or gain on the future which is not
completely offset by movements in the price of the hedged securities. In
addition, there are significant differences between the securities and futures
markets that could result in an imperfect correlation between the markets,
causing a given hedge not to achieve its objectives. The degree of imperfection
of correlation depends on circumstances such as variations in speculative market
demand for futures and futures options on securities, including technical
influences in futures trading and futures options, and differences between the
financial instruments being hedged and the instruments underlying the standard
contracts available for trading in such respects as interest rate levels,
maturities, and creditworthiness of issuers. To compensate for imperfect
correlations, a Fund may purchase or sell futures contracts in a greater dollar
amount than the hedged securities if the volatility of the hedged securities is
historically greater than the volatility of the futures contracts. Conversely, a
Fund may purchase or sell fewer contracts if the volatility of the price of the
hedged securities is historically less than that of the futures contracts. The
risk of imperfect correlation generally tends to diminish as the maturity date
of the futures contract approaches. A decision as to whether, when and how to
hedge involves the exercise of skill and judgment, and even a well-conceived
hedge may be unsuccessful to some degree because of market behavior or
unexpected interest rate trends. Also, suitable hedging transactions may not be 
available in all circumstances.

     Futures exchanges may limit the amount of fluctuation permitted in certain
futures contract prices during a single trading day.  The daily limit
establishes the maximum amount that the price of a futures contract may vary
either up or down from the previous day's settlement price at the end of the
current trading session.  Once the daily limit has been reached in a futures
contract subject to the limit, no more trades may be made on that day at a price
beyond that limit.  The daily limit governs only price movements during a
particular trading day and therefore does not limit potential losses because the
limit may work to prevent the liquidation of unfavorable positions.  For
example, futures prices have occasionally moved to the daily limit for several
consecutive trading days with little or no trading, thereby preventing prompt
liquidation of positions and subjecting some holders of futures contracts to
substantial losses.

     There can be no assurance that a liquid market will exist at a time when a
Fund seeks to close out a futures or a futures option position, and that Fund
would remain obligated to meet margin requirements until the position is closed.
In addition, many of the contracts discussed above are relatively new
instruments without a significant trading history.  As a result, there can be no
assurance that an active secondary market will develop or continue to exist.

     ADDITIONAL RISKS OF OPTIONS ON SECURITIES, FUTURES CONTRACTS, OPTIONS ON
FUTURES CONTRACTS AND FORWARD CURRENCY EXCHANGE CONTRACTS AND OPTIONS THEREON.
Options on securities, futures contracts, options on futures contracts, and
options on currencies may be traded on foreign exchanges. Such transactions may
not be regulated as effectively as similar transactions in the United States;
may not involve a clearing mechanism and related guarantees; and are subject to
the risk of governmental actions affecting trading in, or the prices of, foreign
securities.  Some foreign exchanges may be principal markets so that no common
clearing facility exists and a trader may look only to the broker for
performance of the contract.  The value of such positions also could be
adversely affected by (i) other complex foreign political, legal and economic
factors, (ii) lesser availability than in the United States of data on which to
make trading decisions, (iii) delays in the Trust's ability to act upon economic
events occurring in foreign markets during non-business hours in the United
States, (iv) the imposition of different exercise and settlement terms and
procedures and margin requirements than in the United States, and (v) lesser
trading volume.  In addition, unless a Fund hedges against fluctuations in the
exchange rate between the U.S. dollar and the currencies in which trading is
done on foreign exchanges, any profits that a Fund might realize in trading
could be eliminated by adverse changes in the exchange rate, or the Fund could
incur losses as a result of those changes.
    
     SWAP AGREEMENTS. The Tax-Efficient Equity, Emerging Markets, Structured
Emerging Markets, Tax-Efficient Structured Emerging Markets and International
Developed Funds may enter into equity index swap agreements for purposes of
attempting to gain exposure to the stocks making up an index of securities in a
market without actually purchasing those stocks. The Balanced Fund may enter
into swap agreements to hedge against changes in interest rates, foreign
currency exchange rates or securities prices. Swap agreements are two-party     

                                       23
<PAGE>
 
contracts entered into primarily by institutional investors for periods ranging
from a few weeks to more than one year. In a standard "swap" transaction, two
parties agree to exchange the returns (or differentials in rates of return)
earned or realized on particular predetermined investments or instruments. The
gross returns to be exchanged or "swapped" between the parties are calculated
with respect to a "notional amount," i.e., the return on or increase in value of
a particular dollar amount invested in a "basket" of securities representing a
particular index.

     Most swap agreements entered into by the Funds calculate the obligations of
the parties to the agreement on a "net basis." Consequently, a Fund's current
obligations (or rights) under a swap agreement will generally be equal only to
the net amount to be paid or received under the agreement based on the relative
values of the positions held by each party to the agreement (the "net amount").
A Fund's current obligations under a swap agreement will be accrued daily
(offset against any amounts owing to the Fund) and any accrued but unpaid net
amounts owed to a swap counter party will be covered by segregating assets
determined to be liquid by the Adviser or a Portfolio Manager in accordance with
procedures established by the Board of Trustees, to avoid any potential
leveraging of the Fund's portfolio. Obligations under swap agreements so covered
will not be construed to be "senior securities" for purposes of a Fund's
investment restriction concerning senior securities. A Fund will not enter into
a swap agreement with any single party if the net amount owed or to be received
under existing contracts with that party would exceed 5% of the Fund's assets.
    
     Whether a Fund's use of swap agreements will be successful in furthering
its investment objective will depend on the Portfolio Manager's ability to
predict correctly whether certain types of investments are likely to produce
greater returns than other investments.  Because they are two party contracts
and because they may have terms of greater than seven days, swap agreements may
be considered to be illiquid. Moreover, a Fund bears the risk of loss of the
amount expected to be received under a swap agreement in the event of the
default or bankruptcy of a swap agreement counterparty.  The Funds will enter
into swap agreements only with counter parties that meet certain standards of
creditworthiness (generally, such counter parties would have to be eligible
counter parties under the terms of the Funds' repurchase agreement guidelines).
The swaps market is a relatively new market and is largely unregulated.  It is
possible that developments in the swaps market, including potential government
regulation, could adversely affect a Fund's ability to terminate existing swap
agreements or to realize amounts to be received under such agreements.     

WHEN-ISSUED, DELAYED DELIVERY AND FORWARD COMMITMENT TRANSACTIONS

     A Fund may purchase or sell securities on a when-issued or delayed delivery
basis. These transactions involve a commitment by the Fund to purchase or sell
securities for a predetermined price or yield, with payment and delivery taking
place more than seven days in the future, or after a period longer than the
customary settlement period for that type of security. When delayed delivery
purchases are outstanding, the Fund will segregate until the settlement date
assets determined to be liquid by the Adviser or a Portfolio Manager in
accordance with procedures established by the Board of Trustees in an amount
sufficient to meet the purchase price. Typically, no income accrues on
securities purchased on a delayed delivery basis prior to the time delivery of
the securities is made, although a Fund may earn income on segregated
securities. When purchasing a security on a delayed delivery basis, the Fund
assumes the rights and risks of ownership of the security, including the risk of
price and yield fluctuations, and takes such fluctuations into account when
determining its net asset value. Because a Fund is not required to pay for the
security until the delivery date, these risks are in addition to the risks
associated with the Fund's other investments. If the Fund remains substantially
fully invested at a time when delayed delivery purchases are outstanding, the
delayed delivery purchases may result in a form of leverage. When the Fund has
sold a security on a delayed delivery basis, the Fund does not participate in
future gains or losses with respect to the security. If the other party to a
delayed delivery transaction fails to deliver or pay for the securities, the
Fund could miss a favorable price or yield opportunity or could suffer a loss. A
Fund may dispose of or renegotiate a delayed delivery transaction after it is
entered into, and may sell when-issued securities before they are delivered,
which may result in a capital gain or loss. There is no percentage limitation on
the extent to which the Funds may purchase or sell securities on a delayed
delivery basis.

                                       24
<PAGE>
 
     Each Fund may make contracts to purchase securities for a fixed price at a
future date beyond customary settlement time ("forward commitments") if the Fund
either (i) segregates until the settlement date assets determined to be liquid
by the Adviser or a Portfolio Manager in accordance with procedures established
by the Board of Trustees in an amount sufficient to meet the purchase price or
(ii) enters into an offsetting contract for the forward sale of securities of
equal value that it owns. Certain Funds may enter into forward commitments for
the purchase or sale of foreign currencies. Forward commitments may be
considered securities in themselves. They involve a risk of loss if the value of
the security to be purchased declines prior to the settlement date, which risk
is in addition to the risk of decline in value of the Fund's other assets. A
Fund may dispose of a commitment prior to settlement and may realize short-term
profits or losses upon such disposition.

WARRANTS TO PURCHASE SECURITIES

     Certain Funds may invest in warrants to purchase equity or fixed income
securities.  Bonds with warrants attached to purchase equity securities have
many characteristics of convertible bonds and their prices may, to some degree,
reflect the performance of the underlying stock.  Bonds also may be issued with
warrants attached to purchase additional fixed income securities at the same
coupon rate.  A decline in interest rates would permit a Fund to buy additional
bonds at the favorable rate or to sell the warrants at a profit.  If interest
rates rise, the warrants would generally expire with no value.

METAL-INDEXED NOTES AND PRECIOUS METALS

     The Precious Metals Fund may invest in notes, the principal amount or
redemption price of which is indexed to, and thus varies directly with, changes
in the market price of gold bullion or other precious metals ("Metal-Indexed
Notes").  It is expected that the value of Metal-Indexed Notes will be as
volatile as the price of the underlying metal.

     The Precious Metals Fund will only purchase Metal-Indexed Notes which are
rated investment grade or are issued by issuers that have outstanding debt
obligations rated investment grade or commercial paper rated in the top rating
category by any NRSRO, or Metal-Indexed Notes issued by issuers that the
Portfolio Manager has determined to be of similar creditworthiness.  Debt
obligations rated in the fourth highest rating category by an NRSRO are
considered to have some speculative characteristics.  The Metal-Indexed Notes
might be backed by a bank letter of credit, performance bond or might be
otherwise secured, and any such security, which would be held by the Fund's
custodian, would be taken into account in determining the creditworthiness of
the securities.  The Precious Metals Fund might purchase unsecured Metal-Indexed
Notes if the issuer thereof met the Fund's credit standards without any such
security.  While the principal amount or redemption price of Metal-Indexed Notes
would vary with the price of the resource, such securities would not be secured
by a pledge of the resource or any other security interest in or claim on the
resource.  In the case of Metal-Indexed Notes not backed by a performance bond,
letter of credit or similar security, it is expected that such securities
generally would not be secured by any other specific assets.

     The Precious Metals Fund anticipates that if Metal-Indexed senior
securities were to be purchased, such securities would be issued by precious
metals or commodity brokers or dealers, by mining companies, by commercial banks
or by other financial institutions.  Such issuers would issue notes to hedge
their inventories and reserves of the resource, or to borrow money at a
relatively low cost (which would include the nominal rate of interest paid on
Metal-Indexed Notes, described below, and the cost of hedging the issuer's
metals exposure).  The Precious Metals Fund would not purchase a Metal-Indexed
Note issued by a broker or dealer if as a result of such purchase more than 5%
of the value of the Fund's total assets would be invested in securities of such
issuer.  The Precious Metals Fund might purchase Metal-Indexed Notes from
brokers or dealers which are not also securities brokers or dealers. Precious
metals or commodity brokers or dealers are not subject to supervision or
regulation by any governmental authority or self-regulatory organization in
connection with the issuance of Metal-Indexed Notes.

     Until fairly recently, there were no Metal-Indexed Notes outstanding and
consequently there is no secondary trading market for such securities.  Although
a limited secondary market might develop among institutional traders, 

                                       25
<PAGE>
 
there is no assurance that such a market will develop. No public market is
expected to develop, since the Precious Metals Fund expects that Metal-Indexed
Notes will not be registered under the 1933 Act, and therefore disposition of
such securities, other than to the issuer thereof (as described below), would be
dependent upon the availability of an exemption from such registration.

     Any Metal-Indexed Notes which the Precious Metals Fund might purchase
generally will have maturities of one year or less.  Such notes, however, will
be subject to being called for redemption by the issuer on relatively short
notice.  In addition, it is expected that the Metal-Indexed Notes will be
subject to being put by the Precious Metals Fund to the issuer or to a stand-by
broker meeting the credit standards set forth above, with payments being
received by the Precious Metals Fund on no more than seven days' notice.  A
stand-by broker might be a securities broker-dealer, in which case the Precious
Metals Fund's investment will be limited by applicable regulations of the
Securities and Exchange Commission (the "SEC").  The put feature of the Metal-
Indexed Notes will ensure liquidity even in the absence of a secondary trading
market.  The securities will be repurchased upon exercise of the holder's put at
the specified exercise price, less repurchase fees, if any, which are not
expected to exceed 1% of the redemption or repurchase proceeds.  Depending upon
the terms of particular Metal-Indexed Notes, there might be a period as long as
five days between the date upon which the Precious Metals Fund notifies the
issuer of the exercise of the put and determination of the sale price.

     It is expected that any Metal-Indexed Notes which the Precious Metals Fund
might purchase will bear interest or pay preferred dividends at relatively
nominal rates under 2% per annum.  The Precious Metals Fund's holdings of such
senior securities therefore would not generate appreciable current income, and
the return from such senior securities would be primarily from any profit on the
sale or maturity thereof at a time when the price of the relevant precious metal
is higher than it was when the senior securities were purchased.

REPURCHASE AGREEMENTS

     Each of the Funds may enter into repurchase agreements with domestic
commercial banks or registered broker/dealers.  A repurchase agreement is a
contract under which a Fund would acquire a security for a relatively short
period (usually not more than one week) subject to the obligation of the seller
to repurchase and the Fund to resell such security at a fixed time and price
(representing the Fund's cost plus interest).  In the case of repurchase
agreements with broker-dealers, the value of the underlying securities (or
collateral) will be at least equal at all times to the total amount of the
repurchase obligation, including the interest factor.  The Fund bears a risk of
loss in the event that the other party to a repurchase agreement defaults on its
obligations and the Fund is delayed or prevented from exercising its rights to
dispose of the collateral securities.  The Adviser and the Portfolio Managers,
as appropriate, will monitor the creditworthiness of the counter parties.

SECURITIES LOANS

     Subject to certain conditions described in the Prospectuses, each of the
Equity Income, Value, Tax-Efficient Equity, Enhanced Equity, Value 25, Capital
Appreciation, Mid-Cap Growth, Small-Cap Value, Small-Cap Growth, Core Equity,
Mid-Cap Equity, Target, Micro-Cap Growth, International Developed, Emerging
Markets, Structured Emerging Markets, Tax-Efficient Structured Emerging Markets
and Balanced Funds may make secured loans of its portfolio securities amounting
to no more than 331/3% of its total assets, and each of the Renaissance, Growth,
Opportunity, Innovation, International, International Growth and Precious Metals
Funds may make such loans amounting to no more than 25% of its total assets.
The risks in lending portfolio securities, as with other extensions of credit,
consist of possible delay in recovery of the securities or possible loss of
rights in the collateral should the borrower fail financially.  However, such
loans will be made only to broker-dealers that are believed by the Adviser or
the Portfolio Managers to be of relatively high credit standing.  Securities
loans are made to broker-dealers pursuant to agreements requiring that loans be
continuously secured by collateral at least equal at all times to the market
value of the securities lent.  The borrower pays to the lending Fund an amount
equal to any dividends or interest received on the securities lent.  The Fund
may invest only the cash collateral received in interest-bearing, short-term
securities or receive a fee from the borrower.  In the case of cash collateral,
the Fund typically pays a 

                                       26
<PAGE>
 
rebate to the lender. Although voting rights or rights to consent with respect
to the loaned securities pass to the borrower, the Fund retains the right to
call the loans at any time on reasonable notice, and it will do so in order that
the securities may be voted by the Fund if the holders of such securities are
asked to vote upon or consent to matters materially affecting the investment.
The Fund may also call such loans in order to sell the securities involved.
    
Investment Strategies of the Portfolios - Incorporation by ReferencE     
    
     The 90/10 Portfolio, 60/40 Portfolio and 30/70 Portfolio invest all of
their assets in Underlying PIMCO Funds, which include certain Funds of the Trust
and series of PIMS as specified in the Retail Portfolio Prospectus. By investing
in Underlying PIMCO Funds, the Portfolios may be subject to some or all of the
risks associated with the securities, instruments and techniques utilized by the
Funds described above.  They may also be subject to additional risks associated
with other securities, instruments and techniques utilized by Underlying Funds
which are series of PIMS.  The PIMS series and their attendant risks as
described in the current PIMS prospectus for Institutional Class and
Administrative Class shares and PIMS statement of additional information, which
are included in the PIMS registration statement (File Nos. 033-12113 and 811-
5028) on file with the Securities and Exchange Commission.  The current PIMS
prospectus and statement of additional are each on file with the Securities and
Exchange Commission and are incorporated in this document by reference.  The
PIMS documents may also be obtained free of charge by calling PIMCO Funds
Distributors LLC at 1-800-426-0107.     


                            INVESTMENT RESTRICTIONS

FUNDAMENTAL INVESTMENT RESTRICTIONS

     The investment restrictions set forth below are fundamental policies of the
Renaissance, Growth, Target, Opportunity, Innovation, International,
International Growth and Precious Metals Funds and may not be changed with
respect to any such Fund without shareholder approval by vote of a majority of
the outstanding voting securities of that Fund.  Under these restrictions, none
                                                                           ----
of the above-mentioned Funds may:

     (1)  borrow money in excess of 10% of the value (taken at the lower of cost
or current value) of such Fund's total assets (not including the amount
borrowed) at the time the borrowing is made, and then only from banks as a
temporary measure to facilitate the meeting of redemption requests (not for
leverage) which might otherwise require the untimely disposition of portfolio
investments or for extraordinary or emergency purposes.  Such borrowings will be
repaid before any additional investments are purchased;

     (2)  pledge, hypothecate, mortgage or otherwise encumber its assets in
excess of 10% of such Fund's total assets (taken at cost) and then only to
secure borrowings permitted by Restriction (1) above.  (The deposit of
securities or cash or cash equivalents in escrow in connection with the writing
of covered call or put options, respectively, is not deemed to be pledges or
other encumbrances.)  (For the purpose of this restriction, collateral
arrangements with respect to the writing of options, futures contracts, options
on futures contracts, and collateral arrangements with respect to initial and
variation margin are not deemed to be a pledge of assets and neither such
arrangements nor the purchase or sale of futures or related options are deemed
to be the issuance of a senior security.);

     (3)  underwrite securities issued by other persons except to the extent
that, in connection with the disposition of its portfolio investments, it may be
deemed to be an underwriter under federal securities laws;

     (4)  purchase or sell real estate, although it may purchase securities of
issuers which deal in real estate, including securities of real estate
investment trusts, and may purchase securities which are secured by interests in
real estate, except that the Precious Metals Fund may purchase or sell
agricultural land;

                                       27
<PAGE>
 
     (5)  acquire more than 10% of the voting securities of any issuer, both
with respect to any such Fund and to the Funds to which this policy relates, in
the aggregate; or

     (6)  concentrate more than 25% of the value of its total assets in any one
industry; except that the Precious Metals Fund will concentrate more than 25% of
its total assets in securities of companies principally engaged in the
extraction, processing, distribution or marketing of precious metals, and the
Innovation Fund will concentrate more than 25% of its assets in companies which
use innovative technologies to gain a strategic, competitive advantage in their
industry as well as companies that provide and service those technologies.

     The investment objective of each of the above-referenced Funds and the Tax-
Efficient Equity, Value 25 and Tax-Efficient Structured Emerging Markets Funds
is non-fundamental and may be changed with respect to each such Fund by the
Trustees without shareholder approval.

     The investment restrictions set forth below are fundamental policies of
each of the Equity Income, Value, Tax-Efficient Equity, Enhanced Equity, Value
25, Capital Appreciation, Mid-Cap Growth, Small-Cap Value, Small-Cap Growth,
Core Equity, Mid-Cap Equity, Micro-Cap Growth, International Developed, Emerging
Markets, Tax-Efficient Structured Emerging Markets, Structured Emerging Markets
and Balanced Funds, and may not be changed with respect to any such Fund without
shareholder approval by vote of a majority of the outstanding shares of that
Fund.  The investment objective of each of these Funds (with the exception of
the Tax-Efficient Equity, Value 25 and Tax-Efficient Structured Emerging Markets
Funds) is also fundamental and may not be changed without such shareholder
approval.  Under the following restrictions, none of the above-mentioned Funds
                                             ----                             
may:

     (1)  invest in a security if, as a result of such investment, more than 25%
of its total assets (taken at market value at the time of such investment) would
be invested in the securities of issuers in any particular industry, except that
this restriction does not apply to securities issued or guaranteed by the U.S.
Government or its agencies or instrumentalities (or repurchase agreements with
respect thereto);

     (2)  with respect to 75% of its assets, invest in a security if, as a
result of such investment, more than 5% of its total assets (taken at market
value at the time of such investment) would be invested in the securities of any
one issuer, except that this restriction does not apply to securities issued or
guaranteed by the U.S. Government or its agencies or instrumentalities;

     (3)  with respect to 75% of its assets, invest in a security if, as a
result of such investment, it would hold more than 10% (taken at the time of
such investment) of the outstanding voting securities of any one issuer, except
that this restriction does not apply to securities issued or guaranteed by the
U.S. Government or its agencies or instrumentalities;

     (4)  purchase or sell real estate, although it may purchase securities
secured by real estate or interests therein, or securities issued by companies
in the real estate industry or which invest in real estate or interests therein;

     (5)  purchase or sell commodities or commodities contracts (which, for the
purpose of this restriction, shall not include foreign currency or forward
foreign currency contracts or swap agreements), except that any such Fund may
engage in interest rate futures contracts, stock index futures contracts,
futures contracts based on other financial instruments or one or more groups of
instruments, and on options on such futures contracts;

     (6)  purchase securities on margin, except for use of short-term credit
necessary for clearance of purchases and sales of portfolio securities, but it
may make margin deposits in connection with transactions in options, futures,
and options on futures, and except that effecting short sales will be deemed not
to constitute a margin purchase for purposes of this restriction;

     (7)  borrow money, or pledge, mortgage or hypothecate its assets, except
that a Fund may (i) borrow from banks or enter into reverse repurchase
agreements, or employ similar investment techniques, and pledge its assets in
connection therewith, but only if immediately after each borrowing and

                                       28
<PAGE>
 
continuing thereafter, there is asset coverage of 300% and (ii) enter into
reverse repurchase agreements and transactions in options, futures, options on
futures, and forward foreign currency contracts as described in the Prospectuses
and in this Statement of Additional Information (the deposit of assets in escrow
in connection with the writing of covered put and call options and the purchase
of securities on a when-issued or delayed delivery basis and collateral
arrangements with respect to initial or variation margin deposits for futures
contracts, options on futures contracts, and forward foreign currency contracts
will not be deemed to be pledges of such Fund's assets);

     (8)  issue senior securities, except insofar as such Fund may be deemed to
have issued a senior security by reason of borrowing money in accordance with
the Fund's borrowing policies, and except for purposes of this investment
restriction, collateral, escrow, or margin or other deposits with respect to the
making of short sales, the purchase or sale of futures contracts or related
options, purchase or sale of forward foreign currency contracts, and the writing
of options on securities are not deemed to be an issuance of a senior security;

     (9)  lend any funds or other assets, except that such Fund may, consistent
with its investment objective and policies:  (a) invest in debt obligations,
including bonds, debentures, or other debt securities, bankers' acceptances and
commercial paper, even though the purchase of such obligations may be deemed to
be the making of loans, (b) enter into repurchase agreements and reverse
repurchase agreements, and (c) lend its portfolio securities in an amount not to
exceed one-third of the value of its total assets, provided such loans are made
in accordance with applicable guidelines established by the SEC and the Trustees
of the Trust; or

     (10)  act as an underwriter of securities of other issuers, except to the
extent that in connection with the disposition of portfolio securities, it may
be deemed to be an underwriter under the federal securities laws.

     Notwithstanding the provisions of fundamental investment restrictions (7)
and (8) above, a Fund may borrow money for temporary administrative purposes.
To the extent that borrowings for temporary administrative purposes exceed 5% of
the total assets of a Fund, such excess shall be subject to the 300% asset
coverage requirement of fundamental investment restriction (7).
    
     The investment restrictions set forth below are fundamental policies of the
90/10 Portfolio, the 60/40 Portfolio and the 30/70 Portfolio and may not be
changed with respect to any such Portfolio without shareholder approval by vote
of a majority of the outstanding voting securities of that Portfolio.  Under
these restrictions, a Portfolio may not:     
    
     (1)  invest in a security if, as a result of such investment, more than 25%
of its total assets (taken at market value at the time of such investment) would
be invested in the securities of issuers in any particular industry, except that
this restriction does not apply to securities issued or guaranteed by the U.S.
Government or its agencies or instrumentalities (or repurchase agreements with
respect thereto) or securities issued by any investment company;     
    
     (2)  purchase securities of any issuer unless such purchase is consistent
with the maintenance of the Portfolio's status as a diversified company under
the Investment Company Act of 1940, as amended;     
    
     (3)  purchase or sell real estate, although it may purchase securities
secured by real estate or interests therein, or securities issued by companies
in the real estate industry or which invest in real estate or interests 
therein;     
    
     (4)   purchase or sell commodities or commodities contracts (which, for the
purpose of this restriction, shall not include foreign currency or forward
foreign currency contracts or swap agreements), except that any such Portfolio
may engage in interest rate futures contracts, stock index futures contracts,
futures contracts based on other financial instruments or one or more groups of
instruments, and on options on such futures contracts;     

                                       29
<PAGE>
 
     (5)  borrow money, or pledge, mortgage or hypothecate its assets, except
that a Portfolio may (i) borrow from banks or enter into reverse repurchase
agreements, or employ similar investment techniques, and pledge its assets in
connection therewith, but only if immediately after each borrowing and
continuing thereafter, there is asset coverage of 300% and (ii) enter into
reverse repurchase agreements and transactions in options, futures, options on
futures, and forward foreign currency contracts to the extent described in the
then current Prospectus(es) for the Portfolio and in this Statement of
Additional Information (the deposit of assets in escrow in connection with the
writing of covered put and call options and the purchase of securities on a
when-issued or delayed delivery basis and collateral arrangements with respect
to initial or variation margin deposits for futures contracts, options on
futures contracts, and forward foreign currency contracts will not be deemed to
be pledges of such Portfolio's assets);     
    
     (6)  issue senior securities, except insofar as such Portfolio may be
deemed to have issued a senior security by reason of borrowing money in
accordance with the Portfolio's borrowing policies, and except for purposes of
this investment restriction, collateral, escrow, or margin or other deposits
with respect to the making of short sales, the purchase or sale of futures
contracts or related options, purchase or sale of forward foreign currency
contracts, and the writing of options on securities are not deemed to be an
issuance of a senior security;     
    
     (7)  lend any funds or other assets, except that such Portfolio may,
consistent with its investment objective and policies: (a) invest in debt
obligations, including bonds, debentures, or other debt securities, bankers'
acceptances and commercial paper, even though the purchase of such obligations
may be deemed to be the making of loans, (b) enter into repurchase agreements
and reverse repurchase agreements, and (c) lend its portfolio securities in an
amount not to exceed one-third of the value of its total assets, provided such
loans are made in accordance with applicable guidelines established by the
Securities and Exchange Commission and the Trustees of the Trust; or     
    
     (8)  act as an underwriter of securities of other issuers, except to the
extent that in connection with the disposition of portfolio securities, it may
be deemed to be an underwriter under the federal securities laws.     
    
     Notwithstanding the provisions of fundamental investment restrictions (5)
and (6) above, a Portfolio may borrow money for temporary administrative
purposes. To the extent that borrowings for temporary administrative purposes
exceed 5% of the total assets of a Portfolio, such excess shall be subject to
the 300% asset coverage requirement of fundamental investment restriction 
(5).     
    
     Notwithstanding any other fundamental investment restriction or policy,
each Portfolio may invest some or all of its assets in a single registered open-
end investment company or a series thereof.  Unless specified above, any
fundamental investment restriction or policy of any such registered open-end
investment company or series thereof shall not be considered a fundamental
investment restriction or policy of a Portfolio investing therein.     
    
     The investment objective of each of the Portfolios is non-fundamental and
may be changed with respect to each such Portfolio by the Trustees without
shareholder approval.     

NON-FUNDAMENTAL INVESTMENT RESTRICTIONS
    
     Each Fund (but not any Portfolio) is also subject to the following non-
fundamental restrictions and policies (which may be changed without shareholder
approval) and, unless otherwise indicated, may not:     

     (1)  invest in (a) securities which at the time of such investment are not
readily marketable, (b) securities the disposition of which is restricted under
federal securities laws, (c) repurchase agreements maturing in more than seven
days, (d) OTC options (to the extent described above under "Derivative
Instruments -- OTC Options"), and (e) IO/PO SMBS (as described above under
"Mortgage-Related and Asset-Backed Securities -- Stripped Mortgage - 

                                       30
<PAGE>
 
Backed Securities") if, as a result, more than 15% of a Fund's net assets, taken
at current value, would then be invested in securities described in (a), (b),
(c), (d) and (e) above. For the purpose of this restriction, securities subject
to a 7-day put option or convertible into readily saleable securities or
commodities are not included with subsections (a) or (b);

     (2)  purchase securities on margin, except such short-term credits as may
be necessary for the clearance of purchases and sales of securities.  (For this
purpose, the deposit or payment by a Fund of initial or variation margin in
connection with futures contracts or related options transactions is not
considered the purchase of a security on margin.);

     (3)  make short sales of securities or maintain a short position for the
account of a Fund unless at all times when a short position is open such Fund
owns an equal amount of such securities or owns or has the right to acquire
securities which, without payment of any further consideration, are convertible
into or exchangeable for securities of the same issue as, and equal in amount
to, the securities sold short;

     (4)  purchase or sell commodities or commodity contracts except that a Fund
may purchase and sell financial futures contracts and related options and the
Precious Metals Fund may purchase and sell precious metals and other commodities
and futures thereon;

     (5)  with respect to the Renaissance, Growth, Target, Opportunity,
Innovation, International, International Growth and Precious Metals Funds, make
loans, except by purchase of debt obligations or by entering into repurchase
agreements or through the lending of the Fund's portfolio securities with
respect to not more than 25% of its total assets (33 1/3% in the case of the
Target Fund);

     (6)  with respect to the Renaissance, Growth, Target, Opportunity,
Innovation, International, International Growth and Precious Metals Funds, and
in each case with respect to 75% of such Fund's total assets, invest in
securities of any issuer if, immediately after such investment, more than 5% of
the total assets of such Fund (taken at current value) would be invested in the
securities of such issuer; provided that this limitation does not apply to bank
certificates of deposit or to obligations issued or guaranteed as to interest
and principal by the U.S. government or its agencies or instrumentalities;

     (7)  purchase securities the disposition of which is restricted under the
federal securities laws (excluding for purposes of this restriction securities
offered and sold pursuant to Rule 144A of the 1933 Act and Section 4(2)
commercial paper) if, as a result, such investments would exceed 15% of the
value of the net assets of the relevant Fund;

     (8)  write (sell) or purchase options except that each Fund may (a) write
covered call options or covered put options on securities that it is eligible to
purchase and enter into closing purchase transactions with respect to such
options, and (b) in combination therewith, or separately, purchase put and call
options on securities it is eligible to purchase, and (c) each Fund may engage
in options on securities indexes, options on foreign currencies, options on
futures contracts, and options on other financial instruments or one or more
groups of instruments; provided that the premiums paid by each Fund on all
outstanding options it has purchased do not exceed 5% of its total assets.  Each
Fund may enter into closing sale transactions with respect to options it has
purchased;

     (9)  invest more than 15% of the net assets of a Fund (taken at market
value at the time of the investment) in "illiquid securities," illiquid
securities being defined to include repurchase agreements maturing in more than
seven days, certain loan participation interests, fixed time deposits which are
not subject to prepayment or provide withdrawal penalties upon prepayment (other
than overnight deposits), or other securities which legally or in the Adviser's
or Portfolio Manager's opinion may be deemed illiquid (other than securities
issued pursuant to Rule 144A under the 1933 Act and certain commercial paper
that the Adviser or Portfolio Manager has determined to be liquid under
procedures approved by the Board of Trustees); or

                                       31
<PAGE>
 
     (10) borrow money (excluding reverse repurchase agreements which are
subject to such Fund's fundamental borrowing restriction), except for temporary
administrative purposes.
    
     The Trust has not adopted any non-fundamental investment restrictions or
policies for the 90/10 Portfolio, 60/40 Portfolio or 30/70 Portfolio.     
    
     Unless otherwise indicated, all limitations applicable to a Fund's or
Portfolio's investments apply only at the time a transaction is entered into.
Any subsequent change in a rating assigned by any rating service to a security
(or, if unrated, deemed to be of comparable quality), or change in the
percentage of a Fund's or Portfolio's assets invested in certain securities or
other instruments resulting from market fluctuations or other changes in a
Fund's or Portfolio's total assets will not require the Fund or Portfolio to
dispose of an investment until the Adviser or Portfolio Manager determines that
it is practicable to sell or close out the investment without undue market or
tax consequences to the Fund or Portfolio. In the event that ratings services
assign different ratings to the same security, the Adviser or Portfolio Manager
will determine which rating it believes best reflects the security's quality and
risk at that time, which may be the higher of the several assigned ratings.
    
     The phrase "shareholder approval," as used in the Prospectuses, and the
phrase a "vote of a majority of the outstanding voting securities," as used
herein, means the affirmative vote of the lesser of (1) more than 50% of the
outstanding shares of the Fund, the Portfolio or the Trust, as the case may be,
or (2) 67% or more of the shares of the Fund, the Portfolio or the Trust, as the
case may be, present at a meeting if more than 50% of the outstanding shares are
represented at the meeting in person or by proxy.     


                            MANAGEMENT OF THE TRUST

TRUSTEES

     The Trustees of the Trust, their ages, and a description of their principal
occupations during the past five years are listed below.  Except as shown, each
Trustee's principal occupation and business experience for the last five years
have been with the employer(s) indicated, although in some cases the Trustee may
have held different positions with such employer(s).

<TABLE>    
<CAPTION>
- --------------------------------------------------------------------------------------------------------------
NAME, ADDRESS AND AGE         PRINCIPAL OCCUPATION(S) DURING THE PAST FIVE YEARS
- --------------------------------------------------------------------------------------------------------------
<S>                           <C>
E. Philip Cannon              Proprietor, Cannon & Company, an affiliate of Inverness Management             
3838 Olympia                  LLC, a private equity investment firm.  Formerly, Headmaster, St. John's       
Houston, TX 77019             School, Houston, Texas, Trustee of PIMCO Advisors Funds ("PAF") and            
Age 56                        Cash Accumulation Trust ("CAT"), General Partner, J.B. Poindexter &            
                              Co., Houston, Texas (private partnership), and Partner, Iberia Petroleum       
                              Company (oil and gas production).  Mr. Cannon was a director of WNS            
                              Inc., a retailing company which filed a petition in bankruptcy within the last 
                              five years.                                                                     
- --------------------------------------------------------------------------------------------------------------
Donald P. Carter              Formerly, Trustee of PAF and CAT, Chairman, Executive Vice President
434 Stable Lane               and Director, Cunningham & Walsh, Inc., Chicago (advertising agency).
Lake Forest, IL 60045
Age 70
- --------------------------------------------------------------------------------------------------------------
Gary A. Childress             Private investor. Formerly, Chairman and Director, Bellefonte Lime
11 Longview Terrace           Company, Inc.  Mr. Childress is a partner in GenLime, L.P., a private
Madison, CT 06443             limited partnership, which has filed a petition in bankruptcy within the last
Age 64                        five years.  Formerly, Trustee of PAF and CAT.
- --------------------------------------------------------------------------------------------------------------
</TABLE>     

                                       32
<PAGE>
 
<TABLE>     
<S>                         <C>   
- --------------------------------------------------------------------------------------------------------
William D. Cvengros*        Chairman of the Board of the Trust; Chief Executive Officer, President, and 
800 Newport Center Drive    member of the Management Board, PIMCO Advisors; President and Chief         
Newport Beach, CA 92660     Executive Officer, Value Advisors LLC; Co-Chairman, The Emerging            
Age 49                      Markets Income Fund, Inc., The Emerging Markets Income Fund II, Inc.,       
                            The Emerging Markets Floating Rate Fund, Inc., Global Partners Income       
                            Fund, Inc., Municipal Partners Fund, Inc., and Municipal Partners Fund II,  
                            Inc.  Chairman and Director, PIMCO Advisors Funds plc, PIMCO Global Advisors 
                            (Ireland) Limited. Formerly, Trustee of PAF and CAT, President of the Trust, 
                            Director, Vice Chairman, and Chief Investment Officer, Pacific Life Insurance
                            Company ("Pacific Life") and Director, PIMCO Funds Distribution Company 
                            (currently, PIMCO Funds Distributors LLC).
- --------------------------------------------------------------------------------------------------------
Richard L. Nelson           President, Nelson Financial Consultants; Director, Wynn's International,    
8 Cherry Hills Lane         Inc.; and Trustee, Pacific Select Fund.  Formerly, Partner, Ernst & Young.  
Newport Beach, CA 92660                                                                                 
Age 68                                                                                                  
- --------------------------------------------------------------------------------------------------------
Lyman W. Porter             Professor of Management at the University of California, Irvine; and        
2639 Bamboo Street          Trustee, Pacific Select Fund.                                               
Newport Beach, CA 92660                                                                                 
Age 68                                                                                                  
- --------------------------------------------------------------------------------------------------------
Alan Richards               President, Alan Richards Consulting, Inc.; Chairman, IBIS Capital, LLC;     
7381 Elegans Place          Trustee, Pacific Select Fund; Director, Western National Corporation.       
Carlsbad, CA 92009          Formerly, President, Chief Executive Officer and Director, E.F. Hutton      
Age 68                      Insurance Group, Inc.; Chairman of the Board, Chief Executive Officer and   
                            President, E.F. Hutton Life Insurance Company; Director, E.F. Hutton &      
                            Company, Inc.                                                               
- --------------------------------------------------------------------------------------------------------
Joel Segall                 Formerly, Trustee of PAF and CAT, President and University Professor,       
11 Linden Shores            Bernard M. Baruch College, The City University of New York; Deputy          
Branford, CT 06405          Under Secretary for International Affairs, United States Department of      
Age 75                      Labor; Professor of Finance, University of Chicago; and Board of            
                            Managers, Coffee, Sugar and Cocoa Exchange.                                 
- --------------------------------------------------------------------------------------------------------
W. Bryant Stooks            President, Bryant Investments, Ltd.; Director, American Agritec LLC; and    
1530 E. Montebello          Director, Valley Isle Excursions, Inc.  Formerly, Trustee of PAF and CAT,   
Phoenix, AZ 85014           President, Senior Vice President, Director and Chief Executive Officer,     
Age 58                      Archirodon Group Inc.; Partner, Arthur Andersen & Co.                       
- --------------------------------------------------------------------------------------------------------
Gerald M. Thorne            Director, UPI Inc. and American Orthodontics Corp.  Formerly, Trustee of    
5 Leatherwood Lane          PAF and CAT, Director, Kaytee, Inc., President and Director, Firstar        
Savannah, GA  31414         National Bank of Milwaukee;  Chairman, President and Director, Firstar      
Age 60                      National Bank of Sheboygan; Director, Bando-McGlocklin.                     
- --------------------------------------------------------------------------------------------------------
Stephen J. Treadway*        President and Chief Executive Officer of the Trust; Executive Vice
2187 Atlantic Street        President, PIMCO Advisors; Chairman and President, PIMCO Funds
Stamford, CT 06902          Distributors LLC ("PFDLLC"); President, The Emerging Markets Income
Age 51                      Fund, Inc., The Emerging Markets Income Fund II, Inc., The Emerging
                            Markets Floating Rate Fund, Inc., Global Partners Income Fund, Inc.,
                            Municipal Partners Fund, Inc. and Municipal Partners Fund II, Inc.;
                            Executive Vice President, Value Advisors LLC; Chairman, Municipal
                            Advantage Fund, Inc. and The Central European Value Fund, Inc.
                            Formerly, Trustee, President and Chief Executive Officer of CAT;
                            Executive Vice President, Smith Barney Inc.
- -----------------------------------------------------------------------------------------------------------
</TABLE>     
    
*  Trustee is an "interested person" of the Trust (as defined in Section 
2(a)(19) of the 1940 Act).     

                                       33
<PAGE>
 
OFFICERS

     The chart below sets forth the name, address, age, position with the Trust,
and principal occupation during the past five years of each officer of the
Trust.  Unless otherwise indicated, the business address of all persons listed
below is 840 Newport Center Drive, Suite 300, Newport Beach, California 92660:

<TABLE>    
<CAPTION>
- ------------------------------------------------------------------------------------------------
NAME, ADDRESS AND AGE      POSITION(S) WITH THE       PRINCIPAL OCCUPATION(S) DURING THE PAST
                           TRUST                      FIVE YEARS
- ------------------------------------------------------------------------------------------------
<S>                        <C>                        <C>
Stephen J. Treadway      Trustee, President and    Executive Vice President, PIMCO Advisors;
2187 Atlantic Street     Chief Executive Officer   Chairman and President, PFDLLC;
Stamford, CT 06902                                 Executive Vice President, Value Advisors
Age 51                                             LLC;  Chairman, Municipal Advantage
                                                   Fund, Inc. and The Central European Value
                                                   Fund, Inc.; President, The Emerging
                                                   Markets Income Fund, Inc., The Emerging
                                                   Markets Income Fund II, Inc., The
                                                   Emerging Markets Floating Rate Fund, Inc.,
                                                   Global Partners Income Fund, Inc.,
                                                   Municipal Partners Fund, Inc. and Municipal
                                                   Partners Fund II, Inc.  Formerly, Trustee,
                                                   President and Chief Executive Officer of
                                                   CAT; Executive Vice President, Smith
                                                   Barney Inc.
- ------------------------------------------------------------------------------------------------
R. Wesley Burns          Executive Vice            Trustee and President, PIMS; Executive
Age 39                   President                 Vice President, Pacific Investment
                                                   Management Company ("Pacific Investment
                                                   Management"); Trustee and President,
                                                   PIMCO Variable Insurance Trust; Director
                                                   and President, PIMCO Commercial
                                                   Mortgage Securities Trust, Inc.; Director,
                                                   PIMCO Advisors Funds plc; and Director,
                                                   PIMCO Global Advisors (Ireland) Limited.
                                                   Formerly, Vice President, Pacific Investment
                                                   Management, PAF and CAT.
- ------------------------------------------------------------------------------------------------
</TABLE>     

                                       34
<PAGE>
 
<TABLE>     
<S>                      <C>                       <C>     
- ------------------------------------------------------------------------------------------------
Newton B. Schott, Jr.    Vice President and        Executive Vice President, Chief
2187 Atlantic Street     Secretary                 Administrative Officer, General Counsel and
Stamford, CT 06902                                 Secretary, PFDLLC; Senior Vice President,
Age 56                                             Value Advisors LLC; Executive Vice
                                                   President, The Emerging Markets Income
                                                   Fund, Inc., The Emerging Markets Income
                                                   Fund II, Inc., The Emerging Markets
                                                   Floating Rate Fund, Inc., The Central
                                                   European Value Fund, Inc., Global Partners
                                                   Income Fund, Inc., Municipal Advantage Fund,
                                                   Inc., Municipal Partners Fund, Inc. and
                                                   Municipal Partners Fund II, Inc.  Formerly,
                                                   Vice President and Clerk of PAF and CAT,
                                                   Senior Vice President-Legal and Secretary,
                                                   PIMCO Advisors;  Executive Vice President,
                                                   Secretary and General Counsel, Thomson
                                                   Advisory Group and PIMCO Advisors.
- ------------------------------------------------------------------------------------------------
Jeffrey M. Sargent       Vice President            Vice President and Manager Shareholder
Age 35                                             Services and Fund Administration, Pacific
                                                   Investment Management; Vice President of
                                                   PIMS; Vice President, PIMCO Variable
                                                   Insurance Trust; and Vice President, PIMCO
                                                   Commercial Mortgage Securities Trust, Inc.
- ------------------------------------------------------------------------------------------------
Richard M. Weil          Vice President            General Counsel, PIMCO Advisors. 
Age 35                                             Formerly, Vice President,
                                                   Bankers Trust Company; Associate,
                                                   Simpson, Thatcher & Bartlett.
- ------------------------------------------------------------------------------------------------
John P. Hardaway         Treasurer                 Vice President and Manager of Fund Operations/                    
Age 41                                             Pacific Investment Management; Treasurer                          
                                                   of PIMS; Treasurer, PIMCO Variable Insurance                  
                                                   Trust; Treasurer, PIMCO Commercial Mortgage                   
                                                   Securities Trust, Inc. Formerly, Treasurer of 
                                                   PAF and CAT.      
- ------------------------------------------------------------------------------------------------
Joseph D. Hattesohl      Assistant Treasurer       Vice President and Manager of Fund
Age 34                                             Taxation, Pacific Investment Management;
                                                   Assistant Treasurer, PIMS; Assistant
                                                   Treasurer of PIMCO Variable Insurance
                                                   Trust; and Assistant Treasurer, PIMCO
                                                   Commercial Mortgage Securities Trust, Inc.
                                                   Formerly, Director of Financial Reporting,
                                                   Carl I. Brown & Co.; Tax Manager, Price
                                                   Waterhouse LLP.
- ------------------------------------------------------------------------------------------------
</TABLE>     

                                       35
<PAGE>
 
<TABLE>     
<S>                      <C>                       <C> 
- ------------------------------------------------------------------------------------------------
Garlin G. Flynn          Assistant Secretary       Specialist, PIMCO Funds Administration;
Age 52                                             Secretary, PIMS; Secretary, PIMCO
                                                   Variable Insurance Trust; and Secretary,
                                                   PIMCO Commercial Mortgage Securities
                                                   Trust, Inc.  Formerly, Senior Fund
                                                   Administrator, Pacific Investment
                                                   Management; Senior Mutual Fund Analyst,
                                                   PIMCO Advisors Institutional Services;
                                                   Senior Mutual Fund Analyst, Pacific
                                                   Financial Asset Management Corporation.
- ------------------------------------------------------------------------------------------------
</TABLE>     

TRUSTEES' COMPENSATION

     Trustees other than those affiliated with PIMCO Advisors, a Portfolio
Manager, or Pacific Investment Management, receive an annual retainer of
$45,000, plus $2,000 for each Board of Trustees meeting attended, and $500 for
each Audit and Performance Committee meeting attended, plus reimbursement of
related expenses.  Each Audit and Performance Committee member receives an
additional annual retainer of $1,000, the Chairman of the Audit and Performance
Committees receives an additional annual retainer of $2,000, the Chairman of the
Independent Trustees receives an additional annual retainer of $6,000, and each
Vice Chairman of the entire Board receives an additional annual retainer of
$3,000.  Trustees do not currently receive any pension or retirement benefits
from the Trust or the Fund Complex (see below).  The Trust has adopted a
deferred compensation plan for the Trustees, which went into place during 1997,
which permits the Trustees to defer their receipt of compensation from the
Trust, at their election, in accordance with the terms of the plan.
    
     The following table sets forth information regarding compensation received
by those Trustees who are not "interested persons" (as defined in the 1940 Act)
of the Trust for the fiscal year ended June 30, 1998:     

<TABLE>    
                   --------------------------------------------------------------- 
                        (1)                  (2)                  (3)                    
                                                                                         
                                                               TOTAL                     
                                          AGGREGATE            COMPENSATION              
                   NAME OF TRUSTEE        COMPENSATION FROM    FROM TRUST AND            
                                          TRUST                FUND COMPLEX/1/           
                   ---------------------------------------------------------------       
                   <S>                    <C>                  <C>                       
                   ---------------------------------------------------------------       
                   E. Philip Cannon/2/         $51,600            $60,000                
                   ---------------------------------------------------------------       
                   Donald P. Carter            $58,425            $65,500                
                   ---------------------------------------------------------------       
                   Gary A. Childress           $51,600            $60,000                
                   ---------------------------------------------------------------        
</TABLE>      

     /1/ The amounts listed in column (3) include total compensation paid to the
Trustees for their services as Trustees of the Trust (for all Trustees), CAT
(for all Trustees), and Pacific Select Fund (for Messrs. Nelson, Porter, and
Richards) for the twelve-month period ended June 30, 1998. By virtue of having
PIMCO Advisors or an affiliate of PIMCO Advisors as investment adviser, the
Trust, CAT and Pacific Select Fund were considered to be part of the same "Fund
Complex" for these purposes. As a result of a change in management of CAT on
December 12, 1997, no Trustee of the Trust is currently a Trustee of CAT and CAT
is no longer part of the same "Fund Complex" as the Trust.

     /2/ The Trust has adopted a deferred compensation plan (the "Plan") which
went into place during fiscal 1997. Of the amounts listed in column (2), the
following Trustees elected to have the following amounts deferred from the Trust
and all investment companies in the Fund Complex, respectively: Cannon -$51,600,
$60,000; Porter - $49,900, $58,000; Segall - $26,650, $32,000; Thorne - $51,175,
$59,500.

                                       36
<PAGE>
 
<TABLE>    
                    <S>                               <C>                <C>        
                    ------------------------------------------------------------                
                    Gary L. Light/2/                  $38,700            $45,500                
                    ------------------------------------------------------------                
                    Richard L. Nelson                 $51,275            $93,000                
                    ------------------------------------------------------------                
                    Lyman W. Porter/2/                $49,900            $90,500                
                    ------------------------------------------------------------                
                    Alan Richards                     $56,100            $98,500                
                    ------------------------------------------------------------                
                    Joel Segall/2/                    $49,475            $57,500                
                    ------------------------------------------------------------                
                    W. Bryant Stooks                  $49,475            $56,500                
                    ------------------------------------------------------------                
                    Gerald M. Thorne/2/               $51,175            $59,500                
                    ------------------------------------------------------------                 
</TABLE>     

- ---------------------------------
     /3/ Mr. Light retired as a Trustee of the Trust during the fiscal year
ended June 30, 1998.

                                       37
<PAGE>
 
INVESTMENT ADVISER
    
     PIMCO Advisors serves as investment adviser to each of the Funds and
Portfolios pursuant to an investment advisory agreement ("Advisory Agreement")
between PIMCO Advisors and the Trust.  PIMCO Advisors was organized as a limited
partnership under Delaware law in 1987.  PIMCO Partners, G.P. ("PGP") and PIMCO
Advisors Holdings L.P. ("PAH") are the general partners of PIMCO Advisors.  PGP
is a general partnership between PIMCO Holding LLC ("PH LLC"), a Delaware
limited liability company and an indirect wholly-owned subsidiary of Pacific
Life Insurance Company, and PIMCO Partners LLC, a California limited liability
company controlled by the current Managing Directors and two former Managing
Directors of Pacific Investment Management (collectively, the "Managing
Directors").  PGP is the sole general partner of PAH.  PGP and PAH have equal
right, power and authority to manage and control the business and affairs of
PIMCO Advisors and to take any action deemed necessary or desirable by them in
connection with the business of PIMCO Advisors.     
    
     PGP and PAH have substantially delegated their management and control of
PIMCO Advisors to a Management Board.  Pursuant to the terms of the delegation
of authority by PGP and PAH, the Management Board of PIMCO Advisors is composed
of (i) the Chief Executive Officer of PIMCO Advisors; (ii) six other persons
designated by PGP; (iii) three disinterested persons designated by
representatives of the Public General Partner or, if there is no Public General
Partner, PGP or its successor as general partner of PIMCO Advisors; (iv) the
Chief Executive Officer and one Managing Director of each of the two Investment
Managing Companies having the greatest total income, determined as of the date
of appointment; and (v) one Managing Director of each of two other Investment
Managing Companies designated from time to time by the Management Board upon the
recommendation of the Nominating Committee.  PAH is a Public General Partner for
the purposes set forth above.     
    
     The Management Board has in turn delegated the authority to manage day-to-
day operations and policies to an Executive Committee.  The Executive Committee
is composed of five members.  The members of the Executive Committee are William
D. Cvengros, Brent R. Harris, George A. Long, Glenn S. Schafer and William S.
Thompson, Jr.     
    
     PIMCO Advisors, PGP and PAH are located at 800 Newport Center Drive,
Newport Beach, California 92660. PIMCO Advisors and its subsidiary partnerships
had approximately $225.9 billion of assets under management as of September 30,
1998.     
    
     PIMCO Advisors, subject to the supervision of the Board of Trustees, is
responsible for providing advice and guidance with respect to the Funds and
Portfolios and for managing, either directly or through others selected by the
Adviser, the investment of the Funds and Portfolios. PIMCO Advisors also
furnishes to the Board of Trustees periodic reports on the investment
performance of each Fund and Portfolio. For all of the Funds except the Precious
Metals Fund, PIMCO Advisors has engaged affiliates to serve as Portfolio
Managers.  If a Portfolio Manager ceases to manage the portfolio of a Fund,
PIMCO Advisors will either assume full responsibility for the management of that
Fund, or retain a new portfolio manager subject to the approval of the Trustees
and the Fund's shareholders.     
    
     PIMCO Advisors' Asset Allocation Committee is responsible for determining
how the assets of the 90/10 Portfolio, the 60/40 Portfolio and the 30/70
Portfolio are allocated and reallocated from time to time among the Underlying
PIMCO Funds.  The Portfolios do not pay any fees to PIMCO Advisors in return for
these services under the Advisory Agreement.  The Portfolios do, however,
indirectly pay a proportionate share of the advisory fees paid to PIMCO Advisors
and Pacific Investment Management Company by the Underlying PIMCO Funds in which
the Portfolios invest.     
    
     Under the terms of the Advisory Agreement, PIMCO Advisors is obligated to
manage the Funds and the Portfolios in accordance with applicable laws and
regulations.  The investment advisory services of PIMCO Advisors      

                                       38
<PAGE>
 
to the Trust are not exclusive under the terms of the Advisory Agreement. PIMCO
Advisors is free to, and does, render investment advisory services to others.
    
     The Advisory Agreement will continue in effect with respect to a Fund and
Portfolio for two years from its effective date, and thereafter on a yearly
basis, provided such continuance is approved annually (i) by the holders of a
majority of the outstanding voting securities of the Fund or Portfolio, or by
the Board of Trustees, and (ii) by a majority of the Trustees who are not
"interested persons" of the Trust (as defined in the 1940 Act) and who have no
direct or indirect financial interest in the Advisory Agreement.  The Advisory
Agreement may be terminated without penalty by vote of the Trustees or the
shareholders of the Trust, or by the Adviser, on 60 days' written notice to the
other party and will terminate automatically in the event of its assignment.  In
addition, the Advisory Agreement may be terminated with regard to the
Renaissance, Growth, Target, Opportunity, Innovation, International and Precious
Metals Funds by vote of a majority of the Trustees who are not interested
persons of PIMCO Advisors, on 60 days' written notice to PIMCO Advisors.     

     The Adviser currently receives a monthly investment advisory fee from each
Fund at the following annual rates (based on the average daily net assets of the
particular Funds):

FUND                                                                  ADVISORY
- ----                                                                            
                                                                      FEE RATE
                                                                      -------- 
Equity Income, Value, Tax-Efficient Equity, Capital Appreciation,
  Mid-Cap Growth, Structured Emerging Markets,
  Tax-Efficient Structured Emerging Markets,
  Enhanced Equity and Balanced Funds...............................        .45%
Growth and Value 25 Funds..........................................        .50%
International and Target Funds.....................................        .55%
Core Equity Fund...................................................        .57%
Small-Cap Value, Renaissance, Precious Metals
 and International Developed Funds.................................        .60%
Mid-Cap Equity Fund................................................        .63%
Opportunity and Innovation Funds...................................        .65%
Emerging Markets and International Growth Funds....................        .85%
Small-Cap Growth Fund..............................................       1.00%
Micro-Cap Growth Fund..............................................       1.25%

    
     For the fiscal years ended June 30, 1998, June 30, 1997 and June 30, 1996
(the fiscal year ended June 30, 1996 being an eight-month period) the Funds paid
the Adviser (or its predecessor) the following amounts under the Advisory
Contract:     

                                       39
<PAGE>
 
<TABLE>    
<CAPTION>
                                   YEAR         YEAR        PERIOD
                                   ENDED        ENDED       ENDED
FUND                              6/30/98      6/30/97     6/30/96
- ------------------------------  -----------  -----------  ----------
<S>                             <C>          <C>          <C> 
Equity Income Fund              $   795,252  $   555,146  $  425,899
Value Fund                          951,140      463,869      65,873
Small-Cap Value Fund              1,395,130      249,347     156,721
Core Equity Fund                    504,760      234,333     145,931
Mid-Cap Equity Fund                  53,956       48,656      35,315
Capital Appreciation Fund         3,627,790    1,953,374     883,498
Mid-Cap Growth Fund               2,622,029    1,219,531     617,546
Micro-Cap Growth Fund             2,759,876    1,390,317     669,726
Small-Cap Growth Fund               411,785      327,245     426,098
Enhanced Equity Fund                199,467      292,187     274,512
Emerging Markets Fund               349,026      568,277     440,978
International Developed Fund        653,050      525,817     294,777
Balanced Fund                       300,049      306,756     235,529
Renaissance Fund*                 3,010,051      913,256         N/A
Growth Fund*                      9,329,701    3,758,433         N/A
Target Fund*                      6,607,151    2,887,743         N/A
Opportunity Fund*                 5,172,363    2,324,663         N/A
Innovation Fund*                  2,028,712      750,414         N/A
International Fund*                 922,680      559,353         N/A
International Growth Fund**          24,756          N/A         N/A
Precious Metals Fund*               165,918      119,710         N/A
Tax Exempt Fund*/ (1)/              144,515       66,977         N/A
                                -----------  -----------  ----------
TOTAL                           $42,029,157  $19,515,404  $4,672,403
</TABLE>      

- --------------
    
* Amounts for the year ended June 30, 1997 are for the period 1/18/97 through
6/30/97.
** Amounts for the year ended June 30, 1998 are for the period 12/31/97 through
6/30/98.     
    
(1) The Tax Exempt Fund merged with and into the Municipal Bond Fund of PIMS in
a transaction which took place on June 26, 1998.  The Tax Exempt Fund was
liquidated in connection with the transaction and is no longer a series of the
Trust.     
    
          In addition, the predecessors of the Renaissance, Growth, Target,
Opportunity, Innovation, International, Precious Metals and Tax Exempt Funds
(each of which is a former series of PAF which reorganized as a Fund of the
Trust on January 17, 1997) paid the Adviser the following amounts for the fiscal
period ended January 17, 1997 and the fiscal year ended September 30, 1996 under
separate management contracts between the Adviser and PAF:     

<TABLE>    
<CAPTION>
                           10/1/96      YEAR        
                             TO         ENDED            
FUND                       1/17/97      9/30/96
- ----------------------  ----------  -----------
<S>                     <C>         <C>   
Renaissance Fund        $  653,744  $ 1,627,632
Growth Fund              3,370,567    9,987,541
Target Fund              2,584,257    7,295,767
Opportunity Fund         1,898,337    6,183,575
Innovation Fund            545,586    1,063,584
International Fund         537,647    1,872,608
Precious Metals Fund       107,290      397,969
Tax Exempt Fund             99,023      333,349
                        ----------  -----------
TOTAL                   $9,796,451  $28,762,025

</TABLE>      

                                       40
<PAGE>
 


PORTFOLIO MANAGEMENT AGREEMENTS
    
    The PIMCO Equity Advisors Division of PIMCO Advisors manages the portfolios
of the Growth, Target, Opportunity and Innovation Funds. The Adviser employs
Portfolio Managers to each other Fund pursuant to portfolio management
agreements (each a "Portfolio Management Agreement") between the Adviser and the
relevant Portfolio Manager. Each Portfolio Manager is an affiliate of the
Adviser except for Van Eck Associates Corporation ("Van Eck"), which advises the
Precious Metals Fund. The Adviser currently has seven subsidiary partnerships,
the following six of which manage one or more of the Funds: Pacific Investment
Management, Parametric Portfolio Associates ("Parametric"), Cadence Capital
Management ("Cadence"), NFJ Investment Group ("NFJ"), Columbus Circle Investors
("Columbus Circle"), and Blairlogie Capital Management ("Blairlogie"). [On or
before March 31, 1999, it is anticipated that the Adviser will sell
substantially all of its ownership interest in Blairlogie. See "Blairlogie"
below.]

Pacific Investment Management
- -----------------------------

    Pursuant to a Portfolio Management Agreement between the Adviser and Pacific
Investment Management, Pacific Investment Management provides investment advice
with respect to the portion of the assets of the Balanced Fund allocated by the
Adviser for investment in fixed income securities.  For the services provided,
the Adviser (not the Trust) pays Pacific Investment Management a fee at the
annual rate of .25% of the average daily net assets of the Balanced Fund
allocated to Pacific Investment Management for investment in fixed income
securities.
    
    Pacific Investment Management is an investment management firm organized as
a general partnership. Pacific Investment Management has two partners: PIMCO
Advisors as the supervisory partner, and PIMCO Management Inc. as the managing
partner. The predecessor investment adviser to Pacific Investment Management
commenced operations in 1971. Pacific Investment Management is located at 840
Newport Center Drive, Suite 300, Newport Beach, California 92660. Pacific
Investment Management provides advisory services to PIMCO Funds, PIMCO Variable
Insurance Trust, PIMCO Commercial Mortgage Securities Trust, Inc., which is a
closed-end management investment company, managed accounts consisting of
proceeds from various pension and profit sharing plans and other sub-advised
open-end management investment companies. Pacific Investment Management had
approximately $148.1 billion of assets under management as of September 30,
1998.

Parametric
- ----------

    Pursuant to a Portfolio Management Agreement between the Adviser and
Parametric, Parametric is the Portfolio Manager and provides investment advisory
services to the Tax-Efficient Equity, Enhanced Equity, Structured Emerging
Markets and Tax-Efficient Structured Emerging Markets Funds.  For the services
provided to each Fund, the Adviser (not the Trust) pays Parametric a monthly fee
for each Fund at the following annual rates (based on the average daily net
assets of the particular Fund):  .35% for the Tax-Efficient Equity Fund, .35%
for the Enhanced Equity Fund, .35% for the Structured Emerging Markets Fund, and
 .35% for the Tax-Efficient Structured Emerging Markets Fund.

    Parametric is an investment management firm organized as a general
partnership. Parametric is the successor investment adviser to Parametric
Portfolio Associates, Inc., a wholly-owned corporate subsidiary of PFAMCo.
Parametric has two partners:  PIMCO Advisors as the supervisory partner, and
Parametric Management Inc. as the managing partner.  The predecessor investment
adviser to Parametric commenced operations in 1987.  Parametric is located at
7310 Columbia Center, 701 Fifth Avenue, Seattle, Washington 98104-7090.
Parametric provides investment management services to a number of institutional
accounts, including employee benefit plans, college 

                                       41
<PAGE>
 
    
endowment funds and foundations. Accounts managed by Parametric had combined
assets, as of September 30, 1998, of approximately $2.8 billion.     

Cadence
- -------

    Pursuant to a Portfolio Management Agreement between the Adviser and
Cadence, Cadence provides investment advisory services to the Capital
Appreciation Fund, the Mid-Cap Growth Fund, the Micro-Cap Growth Fund, the
Small-Cap Growth Fund and a portion of the Balanced Fund allocated by the
Adviser for investment in common stocks.  For the services provided, the Adviser
(not the Trust) pays Cadence a monthly fee for each Fund at the following annual
rates (based on the average daily net assets of the particular Fund): .35% for
the Capital Appreciation Fund, .35% for the Mid-Cap Growth Fund, .35% for the
portion of the Balanced Fund's assets allocated to Cadence for investment in
common stock, .90% for the Small-Cap Growth Fund, and 1.15% for the Micro-Cap
Growth Fund.
    
    Cadence is an investment management firm organized as a general partnership.
Cadence is the successor investment adviser to Cadence Capital Management
Corporation, a wholly owned subsidiary of PFAMCo.  Cadence has two partners:
PIMCO Advisors as the supervisory partner, and Cadence Capital Management Inc.
as the managing partner.  The predecessor investment adviser to Cadence
commenced operations in 1988.  Cadence is located at Exchange Place, 53 State
Street, Boston, Massachusetts 02109.  Cadence provides investment management
services to a number of institutional accounts, including employee benefit
plans, college endowment funds and foundations. Accounts managed by Cadence had
combined assets, as of September 30, 1998, of approximately $6.1 billion.     

NFJ
- ---
    
    Pursuant to a Portfolio Management Agreement between the Adviser and NFJ,
NFJ provides investment advisory services to the Equity Income Fund, the Value
Fund, the Value 25 Fund, the Small-Cap Value Fund, and a portion of the Balanced
Fund allocated by the Adviser for investment in common stocks.   For the
services provided, the Adviser (not the Trust) pays NFJ a monthly fee for each
Fund at the following annual rates (based on the average daily net assets of the
particular Fund):  .35% for the Equity Income Fund, .40% for the Value 25 Fund,
 .35% for the Value Fund, .35% for the portion of the Balanced Fund allocated to
NFJ for investment in common stock, and .50% for the Small-Cap Value Fund.     
    
    NFJ is an investment management firm organized as a general partnership.
NFJ is the successor investment adviser to NFJ Investment Group, Inc., a wholly
owned subsidiary of PFAMCo. NFJ has two partners: PIMCO Advisors as the
supervisory partner, and NFJ Management Inc. as the managing partner.  The
predecessor investment adviser to NFJ commenced operations in 1989.  NFJ is
located at 2121 San Jacinto, Suite 1840, Dallas, Texas 75201. NFJ provides
investment management services to a number of institutional accounts, including
employee benefit plans, college endowment funds and foundations.  Accounts
managed by NFJ had combined assets, as of September 30, 1998, of approximately
$2.2 billion.     

Columbus Circle
- ---------------

    Pursuant to a Portfolio Management Agreement between the Adviser and
Columbus Circle, Columbus Circle provides investment advisory services to the
Renaissance, Core Equity, Mid-Cap Equity, and International Growth Funds. For
the services provided, the Adviser (not the Trust) pays Columbus Circle a
monthly fee for each Fund at the following annual rates (based on the average
daily net assets of the particular Fund): .38% for the Renaissance Fund, .47%
for the Core Equity Fund, .53% for the Mid-Cap Equity Fund, and .75% for the
International Growth Fund.

    Columbus Circle is an investment management firm organized as a general
partnership. Columbus Circle is the successor investment adviser to the Columbus
Circle Investors Division of Thomson Advisory Group L.P. 

                                       42
<PAGE>
 
     
("TAG"). Columbus Circle has two partners: PIMCO Advisors as the supervisory
partner, and Columbus Circle Investors Management Inc. as the managing partner.
Columbus Circle's ultimate predecessor commenced operations in 1975. Columbus
Circle is located at Metro Center, One Station Place, 8th Floor, Stamford,
Connecticut 06902. Columbus Circle manages discretionary accounts for
institutions, including corporate, government and union pension and profit-
sharing plans, foundations and educational institutions. Accounts managed by
Columbus Circle had combined assets, as of September 30, 1998, of $7.8 
billion.   

     
    Effective on March [ ], 1999, the PIMCO Equity Advisors Division of 
the Adviser assumed full portfolio management responsibility for the Growth,
Target, Opportunity and Innovation Funds. Prior to that, Columbus Circle served 
as Portfolio Manager for the Funds.


Blairlogie
- ----------

    Pursuant to a Portfolio Management Agreement between the Adviser and
Blairlogie, Blairlogie provides investment advisory services to the
International, International Developed and Emerging Markets Funds. For the
services provided, the Adviser (not the Trust) pays Blairlogie a monthly fee for
each Fund at the following annual rates (based on the average daily net assets
of the particular Fund):  .40% for the International Fund, .50% for the
International Developed Fund, and .75% for the Emerging Markets Fund.

     
    Blairlogie is an investment management firm organized as a limited
partnership under the laws of the  United Kingdom. Blairlogie is the successor
investment adviser to Blairlogie Capital Management Ltd., an indirect subsidiary
of PFAMCo, which commenced operations in 1992.  Blairlogie has two general
partners and one limited partner.  The general partners are PIMCO Advisors,
which serves as the supervisory partner, and Blairlogie Holdings Limited, a
wholly-owned subsidiary of PIMCO Advisors, which serves as the managing partner.
The limited partner is Blairlogie Partners L.P., a limited partnership, the
general partner of which is Pacific Asset Management LLC (a subsidiary of
Pacific Life Insurance Company), and the limited partners of which are the
principal executive officers of Blairlogie Capital Management.  Blairlogie is
located at 4th Floor, 125 Princes Street, Edinburgh EH2 4AD, Scotland.
Blairlogie provides investment management services to a number of institutional
accounts, including employee benefit plans, college endowment funds and
foundations. Accounts managed by Blairlogie had combined assets, as of September
30, 1998, of approximately $700 million.      
     
    [It is anticipated that the Adviser will sell substantially all of its
ownership interest in Blairlogie to Alleghany Asset Management, Inc. on or
before March 31, 1999 (the "Blairlogie Transaction").  The Blairlogie
Transaction is subject to a number of conditions, including approval by the
shareholders of the Emerging Markets and International Developed Funds.  
     
    In connection with the anticipated Blairlogie Transaction, it is proposed
that the Emerging Markets and International Developed Funds (the "Transferring
Funds") will transfer all of their assets and liabilities to newly formed series
of Alleghany Funds to be managed by Blairlogie (the proposed transactions are
referred to as "Reorganizations").  The proposed Reorganizations are subject to
a number of conditions, including approval by the Trust's Board of Trustees and
the shareholders of the Transferring Funds.   
     
    In addition, the Adviser has determined to continue to retain Blairlogie as 
the Portfolio Manager of the International Fund following the consummation of 
the Blairlogie Transaction, subject to the approval of the shareholders of the 
Fund.  

    The relevant Prospectuses and this Statement of Additional Information will 
be supplemented or revised if these events do not occur substantially in 
accordance with the schedule outlined above.]

Van Eck
- -------

    Pursuant to a Portfolio Management Agreement between the Adviser and Van
Eck, Van Eck provides investment advisory services to the Precious Metals Fund.
For the Services provided, the Adviser (not the Trust) pays Van Eck a monthly
fee at the annual rate of .35% based on the average daily net assets of the
Precious Metals Fund.

    Van Eck is a Delaware corporation registered as an investment adviser with
the SEC.  Van Eck and its affiliates advise other mutual funds and private
accounts.  Van Eck is controlled by John C. van Eck who, along with members of
his immediate family, owns 100% of the stock of Van Eck.  Van Eck is located at
99 Park Avenue, New York, New 

                                       43
<PAGE>
 
    
York 10001. Accounts managed by Van Eck had combined assets, as of September 30,
1998, of approximately $1.2 billion.     

    PIMCO Advisors determines the allocation of the Balanced Fund's assets among
the various asset classes and types of securities in which the Fund invests.
PIMCO Advisors reserves the right to allocate a portion of the Fund's assets for
investment in money market instruments and reserves the right to manage the
investment of such assets.

    
    For the fiscal years ended June 30, 1998, June 30, 1997 and June 30, 1996
(the fiscal year ended June 30, 1996 being an eight-month period), the amount of
portfolio management fees paid by the Adviser (or its predecessor) to the
applicable Portfolio Manager (or its predecessor) for each of the Funds was as
follows:     

<TABLE>    
<CAPTION>
                                    YEAR          YEAR        PERIOD       
                                    ENDED         ENDED       ENDED         
                                  06/30/98      06/30/97    06/30/96
                                  --------      --------    --------
<S>                             <C>          <C>          <C>         
Equity Income Fund              $   618,529  $   492,429  $  425,899
Value Fund                          739,776      388,966      65,873
Small-Cap Value Fund              1,162,608      224,788     156,721
Core Equity Fund                    416,205      215,998     136,615
Mid-Cap Equity Fund                  45,391       45,074      23,814
Capital Appreciation Fund         2,821,614    1,714,191     883,498
Mid-Cap Growth Fund               2,039,356    1,059,242     617,546
Micro-Cap Growth Fund             2,539,086    1,325,695     669,726
Small-Cap Growth Fund               370,606      311,280     426,098
Enhanced Equity Fund                155,141      268,021     274,512
Emerging Markets Fund               307,963      501,411     385,438
International Developed Fund        544,208      478,789     237,138
Balanced Fund                       212,532      228,898     161,345
Renaissance Fund*                 1,906,366      575,288         N/A
Growth Fund*                      6,344,197    2,544,364         N/A
Target Fund*                      4,324,681    1,869,073         N/A
Opportunity Fund*                 3,819,591    1,709,827         N/A
Innovation Fund*                  1,186,016      435,246         N/A
International Fund*                 671,040      348,938         N/A
International Growth Fund**          11,650          N/A         N/A
Precious Metal Fund*                 96,785       66,070         N/A
Tax Exempt Fund*                    144,515       66,756         N/A
                                -----------  -----------  ----------
TOTAL                           $30,477,856  $14,870,344  $4,464,223
</TABLE>     

    
_______________

*Amounts for the year ended June 30, 1997 are for the period 1/18/97 through
6/30/97.
**Amounts for the year ended June 30, 1998 are for the period 12/31/97 through
6/30/98.     
    
    The Adviser paid the Portfolio Managers for the predecessors of the
Renaissance, Growth, Target, Opportunity, Innovation, International, Precious
Metals and Tax Exempt Funds (each of which is a former series of PAF which
reorganized as a Fund of the Trust on January 17, 1997) the following amounts
for the fiscal period ended January 17, 1997 and the fiscal year ended September
30, 1996 under separate sub-advisory agreements between the Adviser and the
relevant Portfolio Manager:     

                                       44
<PAGE>
 
<TABLE>    
<CAPTION>      
                                                  
                                   10/1/96       YEAR
                                      TO        ENDED
FUND                               1/17/97     09/30/96
- ----                               -------     --------
<S>                             <C>         <C>  
Renaissance Fund                $  326,864  $   813,816
Growth Fund                      1,685,284    4,993,770
Target Fund                      1,292,168    3,647,884
Opportunity Fund                   949,192    3,091,788
Innovation Fund                    272,772      531,792
International Fund                 268,824      936,304
Precious Metals Fund                53,837      198,985
Tax Exempt Fund                     49,512      166,675
                                ----------  -----------
TOTAL                           $4,898,453  $14,381,014
</TABLE>     


FUND ADMINISTRATOR
    
    In addition to its services as Adviser, PIMCO Advisors serves as
administrator (and is referred to in this capacity as the "Administrator") to
the Funds and Portfolios pursuant to an administration agreement (the
"Administration Agreement") with the Trust.  The Administrator provides or
procures administrative services to the Funds and Portfolios, which include
clerical help and accounting, bookkeeping, internal audit services and certain
other services they require, and preparation of reports to the Trust's
shareholders and regulatory filings.  PIMCO Advisors has retained Pacific
Investment Management as sub-administrator to provide such services pursuant to
a sub-administration agreement (the "Sub-Administration Agreement").  PIMCO
Advisors may also retain other affiliates to provide such services.  In
addition, the Administrator arranges at its own expense for the provision of
legal, audit, custody, transfer agency and other services necessary for the
ordinary operation of the Funds and Portfolios, and is responsible for the costs
of registration of the Trust's shares and the printing of prospectuses and
shareholder reports for current shareholders.  Under the Administration
Agreement, the Administrator has agreed to provide or procure these services,
and to bear these expenses, at the following annual rates for each Fund and
Portfolio (each expressed as a percentage of the Fund's or Portfolio's average
daily net assets attributable to the indicated class or classes of shares on an
annual basis):     

                            ADMINISTRATIVE FEE RATE
                            -----------------------

<TABLE>    
<CAPTION>
                              INSTITUTIONAL               CLASS A, CLASS B,
                             ADMINISTRATIVE                  AND CLASS C                     CLASS D
                                CLASSES*                       SHARES*                      SHARES**
                                --------                       -------                      --------
<S>                          <C>              <C>                                           <C>
Equity Income Fund                .25%        .40% of first $2.5 billion                      .65%
                                              .35% of amounts in excess of $2.5 billion
Tax-Efficient Equity Fund         .25%        .40% of first $2.5 billion                      .65%
                                              .35% of amounts in excess of $2.5 billion
Value Fund                        .25%        .40% of first $2.5 billion                      .65%
                                              .35% of amounts in excess of $2.5 billion
Small-Cap Value Fund              .25%        .40% of first $2.5 billion                       N/A
                                              .35% of amounts in excess of $2.5 billion
Core Equity Fund                  .25%                           N/A                           N/A
Mid-Cap Equity Fund               .25%                           N/A                           N/A
Value 25 Fund                     .25%        .40% of first $2.5 billion                       N/A
                                              .35% of amounts in excess of $2.5 billion
</TABLE>      

                                       45
<PAGE>
 
<TABLE>    
<CAPTION>
                              INSTITUTIONAL               CLASS A, CLASS B,
                             ADMINISTRATIVE                  AND CLASS C                     CLASS D
                                CLASSES*                       SHARES*                      SHARES**
                                --------                       -------                      --------
<S>                          <C>              <C>                                           <C>
Capital Appreciation Fund         .25%        .40% of first $2.5 billion                      .65%
                                              .35% of amounts in excess of $2.5 billion
Mid-Cap Growth Fund               .25%        .40% of first $2.5 billion                      .65%
                                              .35% of amounts in excess of $2.5 billion
Micro-Cap Growth Fund             .25%                           N/A                           N/A
Small-Cap Growth Fund             .25%                           N/A                           N/A
Enhanced Equity Fund              .25%                           N/A                           N/A
Emerging Markets Fund             .50%        .65% of first $2.5 billion                       N/A
                                              .60% of amounts in excess of $2.5 billion          
International Developed           .50%        .65% of first $2.5 billion                       N/A
 Fund                                         .60% of amounts in excess of $2.5 billion          
                                                                                                 
Balanced Fund                     .25%        .40% of first $2.5 billion                       N/A
                                              .35% of amounts in excess of $2.5 billion
Renaissance Fund                  .25%        .40% of first $2.5 billion                      .65%
                                              .35% of amounts in excess of $2.5 billion
Growth Fund                       .25%        .40% of first $2.5 billion                       N/A
                                              .35% of amounts in excess of $2.5 billion
Target Fund                       .25%        .40% of first $2.5 billion                       N/A
                                              .35% of amounts in excess of $2.5 billion          
Opportunity Fund                  .25%        .40% of first $2.5 billion                       N/A
                                              .35% of amounts in excess of $2.5 billion
Innovation Fund                   .25%        .40% of first $2.5 billion                      .65%
                                              .35% of amounts in excess of $2.5 billion
International Fund                .50%        .65% of first $2.5 billion                       N/A
                                              .60% of amounts in excess of $2.5 billion          
International Growth Fund         .50%                           N/A                           N/A
Precious Metals Fund               N/A        .45% of first $2.5 billion                       N/A
                                              .40% of amounts in excess of $2.5 billion          
Tax-Efficient Structured          .50%                           N/A                           N/A
 Emerging Markets Fund
Structured Emerging               .50%                           N/A                           N/A
 Markets Fund
90/10 Portfolio                    [ ]        .40% of first $2.5 billion                       N/A
                                              .35% of amounts in excess of $2.5 billion
60/40 Portfolio                    [ ]        .40% of first $2.5 billion                       N/A
                                              .35% of amounts in excess of $2.5 billion
30/70 Portfolio                    [ ]        .40% of first $2.5 billion                       N/A
                                              .35% of amounts in excess of $2.5 billion
</TABLE>     

                                       46
<PAGE>
 
    
* The Administrator receives administrative fees based on a Fund's or
Portfolio's average daily net assets attributable in the aggregate to its
Institutional and Administrative Class shares on the one hand, and to its Class
A, Class B and Class C shares on the other.     

** As described below, the Administration Agreement includes a plan adopted in
conformity with Rule 12b-1 which provides for the payment of up to .25% of the
 .65% Class D Administrative Fee rate as reimbursement for expenses in respect of
activities that may be deemed to be primarily intended to result in the sale of
Class D shares.

     Except for the expenses paid by the Administrator, the Trust bears all
costs of its operations.  The Trust is responsible for the following expenses:
(i) salaries and other compensation of any of the Trust's executive officers and
employees who are not officers, directors, stockholders, or employees of PIMCO
Advisors, Pacific Investment Management, or their subsidiaries or affiliates;
(ii) taxes and governmental fees; (iii) brokerage fees and commissions and other
portfolio transaction expenses; (iv) costs of borrowing money, including
interest expenses; (v) fees and expenses of the Trustees who are not "interested
persons" of PIMCO Advisors, any Portfolio Manager, or the Trust, and any counsel
retained exclusively for their benefit; (vi) extraordinary expenses, including
costs of litigation and indemnification expenses; (vii) expenses which are
capitalized in accordance with generally accepted accounting principals; and
(viii) any expenses allocated or allocable to a specific class of shares
("Class-specific expenses").

     Class-specific expenses include distribution and/or service fees payable
with respect to the Class A, Class B, Class C, Class D or Administrative Class
shares and administrative fees as described above, and may include certain other
expenses as permitted by the Trust's Amended and Restated Multi-Class Plan (the
"Multi-Class Plan") adopted pursuant to Rule 18f-3 under the 1940 Act, which is
subject to review and approval by the Trustees.  It is not presently anticipated
that any expenses other than distribution and/or service fees and administrative
fees will be allocated on a class-specific basis.

     The Administration Agreement may be terminated by the Trust at any time by
vote of (1) a majority of the Trustees, (2) a majority of the outstanding voting
securities of the Trust, or (3) with respect to the Renaissance, Growth, Target,
Opportunity, Innovation, International and Precious Metals Funds, by a majority
of the Trustees who are not interested persons of the Trust or PIMCO Advisors,
on 60 days' written notice to PIMCO Advisors.

     Under the Administration Agreement, the Administrator or an affiliate may
pay financial service firms a portion of the Class D administration fees in
return for the firms' services (normally not to exceed an annual rate of .35% of
a Fund's average daily net assets attributable to Class D shares purchased
through such firms).  The Administration Agreement includes a plan specific to
Class D shares which has been adopted in conformity with the requirements set
forth under Rule 12b-1 of the 1940 Act to allow for payment of up to .25% per
annum of the Class D administrative fees as reimbursement for expenses in
respect of activities that may be deemed to be primarily intended to result in
the sale of Class D shares.  The principal types of activities for which such
payments may be made are services in connection with the distribution of Class D
shares and/or the provision of shareholder services. See "Distribution of Trust
Shares - Plan for Class D Shares."

     After an initial two-year term, the Sub-Administration Agreement will
continue from year to year upon the approval of the parties thereto.  The Sub-
Administration Agreement may be terminated at any time by PIMCO Advisors or
Pacific Investment Management upon 60 days' written notice to the other party
and, with respect to the services rendered to the Trust, at any time by vote of
a majority of the disinterested Trustees of the Trust.  The Sub-Administration
Agreement will also terminate upon termination of the Administration Agreement.

                                       47
<PAGE>
 
    
     For the fiscal years ended June 30, 1998, June 30, 1997 and June 30, 1996
(the fiscal year ended June 30, 1996 being an eight-month period), the aggregate
amount of the administration fees paid by the Funds was as follows (Class A,
Class B and Class C shares were not offered prior to January 17, 1997 and Class
D shares were not offered during the periods listed):     

<TABLE>    
<CAPTION>
                                     YEAR          YEAR       PERIOD                
                                     ENDED                     ENDED
                                   ENDED FUND    06/30/98    06/30/97  
                                                 --------    --------
                                    06/30/96     
                                    --------     
<S>                             <C>          <C>          <C> 
Equity Income Fund              $   487,106  $   311,798  $  236,611
Value Fund                          720,965      318,624      36,596
Small-Cap Value Fund                850,182      114,067      65,176
Core Equity Fund                    221,386      102,634      63,942
Mid-Cap Equity Fund                  21,411       19,291      14,011
Capital Appreciation Fund         2,144,151    1,093,013     490,803
Mid-Cap Growth Fund               1,722,412      729,997     342,880
Micro-Cap Growth Fund               551,975      278,025     133,934
Small-Cap Growth Fund               102,410       81,774     106,715
Enhanced Equity Fund                110,815      161,982     151,842
Emerging Markets Fund               208,654      312,540     259,300
International Developed Fund        555,314      437,490     244,350
Balanced Fund                       186,627      170,134     130,017
Renaissance Fund*                 2,006,144      605,566         N/A
Growth Fund*                      7,463,761    2,993,370         N/A
Target Fund*                      4,805,201    2,076,748         N/A
Opportunity Fund*                 3,182,992    1,424,856         N/A
Innovation Fund*                  1,248,438      458,154         N/A
International Fund*               1,090,440      567,025         N/A
International Growth Fund**          14,562          N/A         N/A
Precious Metals Fund*               124,438       84,947         N/A
Tax Exempt Fund*                    193,724       89,008         N/A
                                -----------  -----------  ----------
TOTAL                           $28,013,108  $12,431,043  $2,276,177
</TABLE>     

    
____________________

*Amounts for the year ended June 30, 1997 are for the period from 1/17/97
through 6/30/97.
**Amounts for the year ended June 30, 1998 are for the period from 12/31/97
through 6/30/98.     
    
     The predecessor series of the Renaissance, Growth, Target, Opportunity,
Innovation, International, Precious Metals and Tax Exempt Funds (each a series
of PAF which reorganized as a Fund of the Trust on January 17, 1997) received
administrative services during fiscal years 1997 and 1996 under separate
management contracts between the Adviser and PAF on behalf of each such series.
See "Investment Adviser" above for the amounts paid to the Adviser by these
series under such management contracts during fiscal years 1997 and 1996.     
    
     Shares of the Portfolios were not offered during the periods listed 
above.     

                                       48
<PAGE>
 
                         DISTRIBUTION OF TRUST SHARES

DISTRIBUTOR AND MULTI-CLASS PLAN
    
     PIMCO Funds Distributors LLC (the "Distributor") serves as the distributor
of each class of the Trust's shares pursuant to a distribution contract (the
"Distribution Contract") with the Trust.  The Distributor is a wholly-owned
subsidiary of PIMCO Advisors.  The Distribution Contract is terminable with
respect to a Fund, Portfolio or class or shares without penalty, at any time, by
the Fund, Portfolio or class by not more than 60 days' nor less than 30 days'
written notice to the Distributor, or by the Distributor upon not more than 60
days' nor less than 30 days' written notice to the Trust.  The Distributor is
not obligated to sell any specific amount of Trust shares.     
    
     The Distribution Contract will continue in effect with respect to each Fund
and Portfolio, and each class of shares thereof, for successive one-year
periods, provided that each such continuance is specifically approved (i) by the
vote of a majority of the entire Board of Trustees or by the majority of the
outstanding shares of the Fund, Portfolio or class, and (ii) by a majority of
the Trustees who are not interested persons (as defined in the 1940 Act) of the
Trust and who have no direct or indirect interest financial interest in the
Distribution Contract or the Distribution and/or Servicing Plans described
below, by vote cast in person at a meeting called for the purpose.  If the
Distribution Contract is terminated (or not renewed) with respect to one or more
Funds, Portfolios or classes, it may continue in effect with respect to any
Fund, Portfolio or class as to which it has not been terminated (or has been
renewed).     
    
     The Trust currently offers up to six classes of shares of each of the
Funds: Class A, Class B, Class C, Class D, Institutional Class and
Administrative Class shares. The Trust currently offers Institutional Class,
Administrative Class, Class A, Class B and Class C shares of each Portfolio.

     Class A, Class B and Class C shares of the Trust are offered through firms
("participating brokers") which are members of the National Association of
Securities Dealers, Inc. ("NASD"), and which have dealer agreements with the
Distributor, or which have agreed to act as introducing brokers for the
Distributor ("introducing brokers").

     Class D shares are generally offered to clients of financial service firms,
such as broker-dealers or registered investment advisers, with which the
Distributor has an agreement for the use of PIMCO Funds: Multi-Manager Series in
particular investment products, programs or accounts for which a fee may be
charged.     

     Institutional Class shares are offered primarily for direct investment by
investors such as pension and profit sharing plans, employee benefit trusts,
endowments, foundations, corporations, and high net worth individuals
(Institutional Class shares may also be offered through certain financial
intermediaries that charge their customers transaction or other fees with
respect to the customers' investments in the Funds). Administrative Class shares
are offered primarily through employee benefit plan alliances, broker-dealers,
and other intermediaries, and each Fund and Portfolio pays service or
distribution fees to such entities for services they provide to Administrative
Class shareholders.

     Under the Trust's Multi-Class Plan, shares of each class of each Fund and
Portfolio represent an equal pro rata interest in the Fund or Portfolio and,
generally, have identical voting, dividend, liquidation, and other rights
preferences, powers, restrictions, limitations, qualifications and terms and
conditions, except that:  (a) each class has a different designation; (b) each
class of shares bears any class-specific expenses allocated to it; (c) each
class has exclusive voting rights on any matter submitted to shareholders that
relates solely to its distribution or service arrangements; and (d) each class
has separate voting rights on any matter submitted to shareholders in which the
interests of one class differ from the interests of any other class.  In
addition, each class may have a differing sales charge structure, and differing
exchange and conversion features.     

CONTINGENT DEFERRED SALES CHARGE AND INITIAL SALES CHARGE

     As described in the Class A, B and C Prospectus and the Retail Portfolio
Prospectus under the caption "How to Redeem," a contingent deferred sales charge
is imposed upon certain redemptions of Class A, Class B and      

                                       49
<PAGE>
 
    
Class C shares. No contingent deferred sales charge is currently imposed upon
redemptions of Class D, Institutional Class or Administrative Class shares.
Because contingent deferred sales charges are calculated on a series-by-series
basis, shareholders should consider whether to exchange shares of one Fund or
Portfolio for shares of another Fund or Portfolio prior to redeeming an
investment if such an exchange would reduce the contingent deferred sales charge
applicable to such redemption.     
    
     During the fiscal years ended June 30, 1998 and June 30, 1997, the
Distributor received the following aggregate amounts in contingent deferred
sales charges on Class A shares, Class B shares and Class C shares of the Funds:

<TABLE>    
<CAPTION>
                                YEAR      YEAR  
                               ENDED     ENDED  
CLASS                          6/30/98   6/30/97
- -----                          -------   -------
<S>                           <C>       <C> 
Class A                       $  2,273  $ 40,456
Class B                       $945,353  $789,851
Class C                       $480,061  $533,975 
</TABLE>     

    
     Shares of the Portfolios were first offered beginning October 1, 1998.     
    
     The Funds did not offer Class A, B and C shares in fiscal years prior to
the fiscal year ended June 30, 1997. However, during the fiscal year ended
September 30, 1996, the Distributor received the following amounts in contingent
deferred sales charges on shares of series of PAF which reorganized as the
following Funds of the Trust: Class A shares:  Growth - $9,168, Target - $14 and
                              --------------                                    
Opportunity - $4,190.  Class B shares:   Renaissance - $8,722, Growth - $37,445,
                       --------------                                           
Target - $31,670, Innovation - $36,477, International - $6,359, Precious Metals
- - $1,179 and Tax Exempt - $4,055.  Class C shares:   Renaissance - $12,809,
                                   --------------                          
Growth - $124,264, Target - $89,334, Opportunity -$37,154, Innovation - $29,110,
International - $22,016, Precious Metals - $15,384 and Tax Exempt - $1,596.     
    
     As described in the Class A, B and C Prospectus and the Retail Portfolio
Prospectus under the caption "Alternative Purchase Arrangements - Initial Sales
Charge Alternative - Class A Shares," Class A shares of the Trust are sold
pursuant to an initial sales charge, which declines as the amount of the
purchase reaches certain defined levels.  For the fiscal years ended June 30,
1998 and June 30, 1997, the Distributor received an aggregate of $4,878,434 and
$2,927,636, respectively, and retained an aggregate of $506,878 and $369,546,
respectively, in initial sales charges paid by Class A shareholders of the
Trust.     
    
     The Trust did not offer Class A shares in fiscal years prior to the fiscal
year ended June 30, 1997. However, during the fiscal year ended September 30,
1996, the Distributor received the following amounts in initial sales charges
paid by shareholders of PAF series which reorganized as the following Funds of
the Trust: Renaissance - $205,419, Growth - 549,330, Target - $852,363,
Opportunity - $176,391, Innovation - $685,093, International - $91,177, Precious
Metals - $72,503 and Tax Exempt - $37,180, and retained the following amounts:
Renaissance - $27,477, Growth - $83,657, Target - $126,693, Opportunity -
$29,605, Innovation - $114,091, International - $13,871, Precious Metals -
$7,738 and Tax Exempt - $3,140.     

DISTRIBUTION AND SERVICING PLANS FOR CLASS A, CLASS B AND CLASS C SHARES

    
     As stated in the Class A, B and C Prospectus and the Retail Portfolio
Prospectus under the caption "Distributor and Distribution and Servicing Plans,"
Class A, Class B and Class C shares of the Trust are continuously offered
through participating brokers which are members of the NASD and which have
dealer agreements with the Distributor, or which have agreed to act as
introducing brokers.     
    
     Pursuant to separate Distribution and Servicing Plans for Class A, Class B
and Class C shares (the "Retail Plans"), the Distributor receives (i) in
connection with the distribution of Class B and Class C shares of the Trust,
certain distribution fees from the Trust, and (ii) in connection with personal
services rendered to Class A, Class B      

                                       50
<PAGE>
 
    
and Class C shareholders of the Trust and the maintenance of shareholder
accounts, certain servicing fees from the Trust. Subject to the percentage
limitations on these distribution and servicing fees set forth in the Class A, B
and C Prospectus and the Retail Portfolio Prospectus, the distribution and
servicing fees may be paid with respect to services rendered and expenses borne
in the past with respect to Class A, Class B and Class C shares as to which no
distribution and servicing fees were paid on account of such limitations. The
Distributor pays (i) all or a portion of the distribution fees it receives from
the Trust to participating and introducing brokers, and (ii) all or a portion of
the servicing fees it receives from the Trust to participating and introducing
brokers, certain banks and other financial intermediaries.     
    
     Each Retail Plan may be terminated with respect to any Fund or Portfolio to
which the Plan relates by vote of a majority of the Trustees who are not
interested persons of the Trust (as defined in the 1940 Act) and who have no
direct or indirect financial interest in the operation of the Plan or the
Distribution Contract ("disinterested Retail Plan Trustees"), or by vote of a
majority of the outstanding voting securities of the relevant class of that Fund
or Portfolio.  Any change in any Retail Plan that would materially increase the
cost to the class of shares of any Fund or Portfolio to which the Plan relates
requires approval by the affected class of shareholders of that Fund or
Portfolio.  The Trustees review quarterly written reports of such costs and the
purposes for which such costs have been incurred.  Each Retail Plan may be
amended by vote of the Trustees, including a majority of the disinterested
Retail Plan Trustees, cast in person at a meeting called for the purpose.  As
long as the Retail Plans are in effect, selection and nomination of those
Trustees who are not interested persons of the Trust shall be committed to the
discretion of such disinterested Trustees.     
    
     The Retail Plans will continue in effect with respect to each Fund and
Portfolio, and each class of shares thereof, for successive one-year periods,
provided that each such continuance is specifically approved (i) by the vote of
a majority of the disinterested Retail Plan Trustees and (ii) by the vote of a
majority of the entire Board of Trustees cast in person at a meeting called for
the purpose of voting on such approval.     
    
     If a Retail Plan is terminated (or not renewed) with respect to one or more
Funds or Portfolios, or classes thereof, it may continue in effect with respect
to any class of any Fund or Portfolio as to which it has not been terminated (or
has been renewed).     
    
     The Trustees believe that the Retail Plans will provide benefits to the
Trust.  In this regard, the Trustees believe that the Retail Plans will result
in greater sales and/or fewer redemptions of Trust shares, although it is
impossible to know for certain the level of sales and redemptions of Trust
shares that would occur in the absence of the Retail Plans or under alternative
distribution schemes.  Although the expenses of the Funds and Portfolios are
essentially fixed, the Trustees believe that the effect of the Retail Plans on
sales and/or redemptions may benefit the Trust by reducing expense ratios and/or
by affording greater flexibility to Portfolio Managers.  From time to time,
expenses of the Distributor incurred in connection with the sale of Class B and
Class C shares of the Trust, and in connection with the servicing of Class B and
Class C shareholders and the maintenance of shareholder accounts, may exceed the
distribution and servicing fees collected by the Distributor.  The Trustees
consider such unreimbursed amounts, among other factors, in determining whether
to cause the Funds and Portfolios to continue payments of distribution and
servicing fees in the future with respect to Class B and Class C shares.     

PAYMENTS PURSUANT TO CLASS A PLANS

    
     For the fiscal years ended June 30, 1998 and June 30, 1997, the Trust paid
the Distributor an aggregate of $2,017,316 and $1,147,572, respectively,
pursuant to the Class A Retail Plan.  Such payments were allocated among the
operational Funds as follows (shares of the Portfolios were initially offered
beginning October 1, 1998):     

                                       51
<PAGE>
 
<TABLE>    
<CAPTION>
                                 YEAR ENDED  YEAR ENDED
FUND                              06/30/98    06/30/97
- ----                              --------    --------
<S>                              <C>         <C>
Equity Income Fund               $  20,227   $     938
Value Fund                          46,720      14,876
Small-Cap Value Fund                91,688       2,770
Core Equity Fund                       N/A         N/A
Mid-Cap Equity Fund                    N/A         N/A
Capital Appreciation Fund           75,035       5,510
Mid-Cap Growth Fund                 72,631      12,246
Micro-Cap Growth Fund                  N/A         N/A
Small-Cap Growth Fund                  N/A         N/A
Enhanced Equity Fund                   N/A         N/A
Emerging Markets Fund                  697         108
International Developed Fund         2,903         169
Balanced Fund                       12,278         173
Renaissance Fund                   130,230      53,527
Growth Fund                        403,013     290,828
Target Fund                        394,300     288,012
Opportunity Fund                   531,993     320,127
Innovation Fund                    164,089      99,910
International Fund                  42,700      34,195
International Growth Fund              N/A         N/A
Precious Metals Fund                13,370      14,218
Tax Exempt Fund                     15,442       9,965
</TABLE>     
    
     During the fiscal year ended June 30, 1998, the amounts collected pursuant
to the Class A Retail Plan were used as follows by the Distributor:  sales
commissions and other compensation to sales personnel, $1,512,987; preparing,
printing and distributing sales material and advertising (including preparing,
printing and distributing prospectuses to non-shareholders) and other expenses
(including data processing, legal and operations), $504,329. These totals,
allocated among (i) compensation and (ii) sales material and other expenses for
each Fund, were as follows:
<TABLE>    
<CAPTION>
                                              SALES MATERIAL
                                                AND OTHER
                                COMPENSATION     EXPENSES      TOTAL
                                ------------  --------------  --------
<S>                             <C>           <C>             <C>
Equity Income Fund                  $ 15,170        $  5,057  $ 20,227
Value Fund                            35,040          11,680    46,720
Small-Cap Value Fund                  68,766          22,922    91,688
Core Equity Fund                         N/A             N/A       N/A
Mid-Cap Equity Fund                      N/A             N/A       N/A
Capital Appreciation Fund             56,276          18,759    75,035
Mid-Cap Growth Fund                   54,473          18,158    72,631
Micro-Cap Growth Fund                    N/A             N/A       N/A
Small-Cap Growth Fund                    N/A             N/A       N/A
Enhanced Equity Fund                     N/A             N/A       N/A
Emerging Markets Fund                    523             174       697
International Developed Fund           2,177             726     2,903
Balanced Fund                          9,208           3,070    12,278
Renaissance Fund                      97,672          32,558   130,230
Growth Fund                          302,260         100,753   403,013
Target Fund                          295,725          98,575   394,300
Opportunity Fund                     398,995         132,998   531,993
Innovation Fund                      123,067          41,022   164,089
</TABLE>      

                                       52
<PAGE>
 
<TABLE>    
<S>                                                   <C>           <C> 
International Fund                    32,025          10,675        42,700
International Growth Fund                N/A             N/A           N/A
Precious Metals Fund                  10,027           3,343        13,370
Tax Exempt Fund                       11,582           3,861        15,442
</TABLE>      
    
     The Trust did not offer Class A shares in fiscal years prior to the fiscal
year ended June 30, 1997.  For the fiscal year ended September 30, 1996, PAF
paid the Distributor an aggregate of $1,556,119 pursuant to a Distribution and
Servicing Plan applicable to the Class A shares of PAF (the "PAF Class A Plan"),
which is similar to the Class A Plan of the Trust.   Such payments were
allocated among the predecessors of the following Funds (each of which was
formerly a series of PAF which reorganized as a series of the Trust on January
17, 1997) as follows:     

<TABLE>     
<CAPTION>
                                YEAR ENDED  
                              SEPT. 30, 1996
                              --------------
<S>                           <C>           
Renaissance Fund                    $ 38,973
Growth Fund                          351,506
Target Fund                          338,598
Opportunity Fund                     308,794
Innovation Fund                       88,089
International Fund                    42,411
Precious Metals Fund                  21,416
Tax Exempt Fund                       10,288 
</TABLE>     
    
     The remainder of the total payments made under the PAF Class A Plan for
such fiscal years was allocated among other series of PAF which either merged
with Funds of the Trust or merged with/reorganized as series of PIMS, an
affiliated mutual fund family, in transactions which took place on January 17,
1997.     

PAYMENTS PURSUANT TO CLASS B PLANS
    
     For the fiscal years ended June 30, 1998 and June 30, 1997, the Trust paid
the Distributor an aggregate of $4,549,168 and $1,670,623, respectively,
pursuant to the Class B Retail Plan.  Such payments were allocated among the
operational Funds as follows (shares of the Portfolios were initially offered
beginning October  1, 1998):     

<TABLE>    
<CAPTION>
                                        YEAR ENDED          YEAR ENDED  
   FUND                                  06/30/98            06/30/97   
   ----                                  --------            --------   
<S>                                     <C>                 <C>          
Equity Income Fund                       $  80,992           $   5,019  
Value Fund                                 311,768             101,067  
Small-Cap Value Fund                       611,536              17,419  
Core Equity Fund                               N/A                 N/A  
Mid-Cap Equity Fund                            N/A                 N/A  
Capital Appreciation Fund                  165,015               5,077  
Mid-Cap Growth Fund                        528,760             104,374  
Micro-Cap Growth Fund                          N/A                 N/A  
Small-Cap Growth Fund                          N/A                 N/A  
Enhanced Equity Fund                           N/A                 N/A  
Emerging Markets Fund                        4,696                 633  
International Developed Fund                21,969               2,256  
Balanced Fund                               42,373               2,223  
Renaissance Fund                           603,997             204,965  
Growth Fund                                660,761             351,684  
Target Fund                                727,857             450,009  
Opportunity Fund                               N/A                 N/A  
</TABLE>     

                                       53
<PAGE>
 
<TABLE>    
<S>                                        <C>                 <C> 
Innovation Fund                            629,537             332,295  
International Fund                          85,359              53,098  
International Growth Fund                      N/A                 N/A  
Precious Metals Fund                        41,484              21,713  
Tax Exempt Fund                             33,064              18,818   
</TABLE>     
    
     During the fiscal year ended June 30, 1998, the amounts collected pursuant
to the Class B Retail Plan were used as follows by the Distributor:  sales
commissions and other compensation to sales personnel, $3,411,876; preparing,
printing and distributing sales material and advertising (including preparing,
printing and distributing prospectuses to non-shareholders), and other expenses
(including data processing, legal and operations), $1,137,292. These totals,
allocated among (i) compensation and (ii) sales material and other expenses for
each Fund, were as follows:

<TABLE>    
<CAPTION>
                                                      SALES MATERIAL          
                                                        AND OTHER             
                                   COMPENSATION         EXPENSES         TOTAL
                                   ------------      --------------      -----
<S>                                <C>               <C>                 <C>  
Equity Income Fund                     $ 60,744            $ 20,248     $ 80,992
Value Fund                              233,826              77,942      311,768
Small-Cap Value Fund                    458,652             152,884      611,536
Core Equity Fund                            N/A                 N/A          N/A
Mid-Cap Equity Fund                         N/A                 N/A          N/A
Capital Appreciation Fund               123,761              41,254      165,015
Mid-Cap Growth Fund                     396,570             132,190      528,760
Micro-Cap Growth Fund                       N/A                 N/A          N/A
Small-Cap Growth Fund                       N/A                 N/A          N/A
Enhanced Equity Fund                        N/A                 N/A          N/A
Emerging Markets Fund                     3,522               1,174        4,696
International Developed Fund             16,477               5,492       21,969
Balanced Fund                            31,780              10,593       42,373
Renaissance Fund                        452,998             150,999      603,997
Growth Fund                             495,571             165,190      660,761
Target Fund                             545,893             181,964      727,857
Opportunity Fund                            N/A                 N/A          N/A
Innovation Fund                         472,153             157,384      629,537
International Fund                       64,020              21,340       85,359
International Growth Fund                   N/A                 N/A          N/A
Precious Metals Fund                     31,113              10,371       41,484
Tax Exempt Fund                          24,798               8,266       33,064
</TABLE>     
    
     The Trust did not offer Class B shares in fiscal years prior to the fiscal
year ended June 30, 1997.  For the fiscal year ended September 30, 1996, PAF
paid the Distributor an aggregate of $1,839,931 pursuant to a Distribution and
Servicing Plan applicable to the Class B shares of PAF (the "PAF Class B Plan"),
which is similar to the Class B Plan of the Trust.  Such payments were allocated
among the predecessors of the following Funds (each of which was formerly a
series of PAF which reorganized as a series of the Trust on January 17, 1997) as
follows:     

<TABLE>    
<CAPTION>
                                     YEAR ENDED  
                                   SEPT. 30, 1996
                                   --------------
<S>                                <C>           
Renaissance Fund                         $ 62,195
Growth Fund                               211,778
Target Fund                               241,125
Opportunity Fund                              N/A
Innovation Fund                           166,747
</TABLE>      

                                       54
<PAGE>
 
<TABLE>    
<S>                                       <C>  
International Fund                        289,719
Precious Metals Fund                       14,083
Tax Exempt Fund                            14,673 
</TABLE>     
    
     The remainder of the total payments made under the PAF Class B Plan for
such fiscal years was allocated among other series of PAF which either merged
with Funds of the Trust or merged with/reorganized as series of PIMS, an
affiliated mutual fund family, in transactions which took place on January 17,
1997.     

PAYMENTS PURSUANT TO CLASS C PLANS
    
     For the fiscal years ended June 30, 1998 and June 30, 1997, the Trust paid
the Distributor an aggregate of $42,819,673 and $28,944,078, respectively,
pursuant to the Class C Retail Plan.  Such payments were allocated among the
operational Funds as follows (shares of the Portfolios were initially offered
beginning October 1, 1998):     

<TABLE>    
<CAPTION>
                                         YEAR ENDED          YEAR ENDED
    FUND                                  06/30/98            06/30/97 
    ----                                  --------            -------- 
<S>                                     <C>                 <C>       
Equity Income Fund                      $  139,875          $   13,919 
Value Fund                                 784,829             245,893 
Small-Cap Value Fund                       814,232              39,558 
Core Equity Fund                               N/A                 N/A 
Mid-Cap Equity Fund                            N/A                 N/A 
Capital Appreciation Fund                  392,705              28,078 
Mid-Cap Growth Fund                        951,993             197,365 
Micro-Cap Growth Fund                          N/A                 N/A 
Small-Cap Growth Fund                          N/A                 N/A 
Enhanced Equity Fund                           N/A                 N/A 
Emerging Markets Fund                       14,813               5,070 
International Developed Fund                40,459               4,936 
Balanced Fund                               41,412               1,876 
Renaissance Fund                         3,887,867           2,024,245 
Growth Fund                             16,386,591          11,107,219 
Target Fund                              9,707,945           7,238,372 
Opportunity Fund                         5,829,510           4,950,118 
Innovation Fund                          1,834,958           1,149,018 
International Fund                       1,421,443           1,354,452 
International Growth Fund                      N/A                 N/A 
Precious Metals Fund                       181,565             255,508 
Tax Exempt Fund                            389,476             328,451  
</TABLE>     
    
     During the fiscal year ended June 30, 1998, the amounts collected pursuant
to the Class C Retail Plan were used as follows by the Distributor:  sales
commissions and other compensation to sales personnel, $32,114,755; preparing,
printing and distributing sales material and advertising (including preparing,
printing and distributing prospectuses to non-shareholders) and other expenses
(including data processing, legal and operations), $10,704,918. These totals,
allocated among (i) compensation and (ii) sales material and other expenses for
each Fund, were as follows:
<TABLE>    
<CAPTION>
                                                  SALES MATERIAL             
                                                    AND OTHER                
                                COMPENSATION         EXPENSES          TOTAL  
                                ------------      --------------       -----  
<S>                             <C>               <C>               <C>       
Equity Income Fund                $  104,906          $   34,969    $   139,875
Value Fund                           588,622             196,207        784,829
Small-Cap Value Fund                 610,674             203,558        814,232
</TABLE>     

                                       55
<PAGE>
 
<TABLE>     
<S>                                <C>                 <C>           <C> 
Core Equity Fund                         N/A                 N/A            N/A
Mid-Cap Equity Fund                      N/A                 N/A            N/A
Capital Appreciation Fund            294,529              98,176        392,705
Mid-Cap Growth Fund                  713,995             237,998        951,993
Micro-Cap Growth Fund                    N/A                 N/A            N/A
Small-Cap Growth Fund                    N/A                 N/A            N/A
Enhanced Equity Fund                     N/A                 N/A            N/A
Emerging Markets Fund                 11,110               3,703         14,813
International Developed Fund          30,344              10,115         40,459
Balanced Fund                         31,059              10,353         41,412
Renaissance Fund                   2,915,900             971,967      3,887,867
Growth Fund                        2,289,943           4,096,648     16,386,591
Target Fund                        7,280,959           2,426,986      9,707,945
Opportunity Fund                   4,372,132           1,457,378      5,829,510
Innovation Fund                    1,376,218             458,740      1,834,958
International Fund                 1,066,082             355,361      1,421,443
International Growth Fund                N/A                 N/A            N/A
Precious Metals Fund                 136,174              45,391        181,565
Tax Exempt Fund                      292,107              97,369        389,476
</TABLE>     
    
     The Trust did not offer Class C shares in fiscal years prior to the fiscal
year ended June 30, 1997.  For the fiscal year ended September 30, 1996, PAF
paid the Distributor an aggregate of $41,704,155 pursuant to a Distribution and
Servicing Plan applicable to the Class C shares of PAF (the "PAF Class C Plan"),
which is similar to the Class C Plan of the Trust.  Such payments were allocated
among the predecessors of the following Funds (each of which was formerly a
series of PAF Fund which reorganized as a series of the Trust on January 17,
1997) as follows:     

<TABLE>    
<CAPTION>
                                Year Ended  
                              Sept. 30, 1996
                              --------------
<S>                           <C>           
Renaissance Fund                 $ 1,965,449
Growth Fund                       13,593,775
Target Fund                        8,684,223
Opportunity Fund                   7,455,633
Innovation Fund                      899,377
International Fund                 1,858,512
Precious Metals Fund                 430,849
Tax Exempt Fund                      499,738 
</TABLE>     
    
     The remainder of the total payments made under the PAF Class C Plan for
such fiscal years was allocated among other series of PAF which either merged
with Funds of the Trust or merged with/reorganized as series of PIMS, an
affiliated mutual fund family, in transactions which took place on January 17,
1997.     
    
     From time to time, expenses of principal underwriters incurred in
connection with the distribution of Class B and Class C shares of the Funds, and
in connection with the servicing of Class A, Class B and Class C shareholders of
the Funds and the maintenance of Class A, Class B and Class C shareholder
accounts, may exceed the distribution and/or servicing fees collected by the
Distributor. As noted above, Class A, Class B and Class C Distribution and
Servicing Plans, which are similar to the Trust's current Plans, were in effect
prior to January 17, 1997 in respect of series of PAF that were predecessors of
certain of the Funds listed below. The remaining Funds did not offer Class A,
Class B or Class C shares prior to January 17, 1997. As of June 30, 1998, such
expenses were approximately $11,946,000 in excess of payments under the Class A
Plan, $22,563,000 in excess of payments under the Class B Plan and $2,252,000 in
excess of payments under the Class C Plan.

                                       56
<PAGE>
 
    
     The allocation of such excess (on a pro rata basis) among the Funds listed
below as of June 30, 1998 was as follows:     

<TABLE>    
<CAPTION>
Fund                                    Class A         Class B      Class C  
- ----                                    -------         -------      -------  
<S>                                    <C>             <C>           <C>      
Balanced Fund                          $  114,354      $  311,366    $  4,119 
Capital Appreciation Fund                 864,192       1,414,624      34,818 
Emerging Markets Fund                       5,052          13,321         569 
Equity Income Fund                        153,514         524,983      11,208 
Growth Fund                             2,217,715       2,796,317     905,533 
Innovation Fund                         1,055,088       2,811,646     106,466 
International Developed Fund               58,174         105,611       3,110 
International Fund                        216,026         322,227      68,277 
Mid-Cap Growth Fund                       677,693       2,930,058      68,372 
Opportunity Fund                        2,412,474              --     243,645 
Precious Metals Fund                       43,292         132,484       6,856 
Renaissance Fund                        1,010,427       3,479,893     228,385 
Small-Cap Value Fund                      889,489       3,634,823      63,450 
Target Fund                             1,969,040       2,846,350     464,235 
Value Fund                                259,521       1,239,508      42,959 
</TABLE>     
    
     The allocation of such excess (on a pro rata basis) among the Funds,
calculated as a percentage of net assets of each Fund listed below as of June
30, 1998, was as follows:     

<TABLE>    
<CAPTION>
Fund                                    Class A        Class B        Class C 
- ----                                    -------        -------        ------- 
<S>                                     <C>            <C>            <C>     
Balanced Fund                              1.19%          3.47%          0.05%
Capital Appreciation Fund                  1.19           3.47           0.05 
Emerging Markets Fund                      1.19           3.47           0.05 
Equity Income Fund                         1.19           3.47           0.05 
Growth Fund                                1.19           3.47           0.05 
Innovation Fund                            1.19           3.47           0.05 
International Developed Fund               1.19           3.47           0.05 
International Fund                         1.19           3.47           0.05 
Mid-Cap Growth Fund                        1.19           3.47           0.05 
Opportunity Fund                           1.19             --           0.05 
Precious Metals Fund                       1.19           3.47           0.05 
Renaissance Fund                           1.19           3.47           0.05 
Small-Cap Value Fund                       1.19           3.47           0.05 
Target Fund                                1.19           3.47           0.05 
Value Fund                                 1.19           3.47           0.05 
</TABLE>     

DISTRIBUTION AND ADMINISTRATIVE SERVICES PLANS FOR ADMINISTRATIVE CLASS SHARES
    
     The Trust has adopted an Administrative Services Plan with respect to the
Administrative Class shares of each Fund and Portfolio. The Trust also has
adopted a Distribution Plan (together with the Administrative Services Plan, the
"Administrative Plans") with respect to the Administrative Class shares of each
Portfolio and each Fund except the Emerging Markets, Capital Appreciation and
Small-Cap Growth Funds, which are not subject to such Distribution Plan. 

     Under the terms of the Administrative Distribution Plan, the Trust is
permitted to reimburse, out of the assets attributable to the Administrative
Class shares of each applicable Fund and Portfolio, in an amount up to 0.25% on
an annual basis of the average daily net assets of that class, financial
intermediaries for costs and expenses incurred in

                                       57
<PAGE>
 
connection with the distribution and marketing of Administrative Class shares
and/or the provision of certain shareholder services to its customers that
invest in Administrative Class shares of the Funds and Portfolios. Such services
may include, but are not limited to, the following: providing facilities to
answer questions from prospective investors about a Fund or Portfolio; receiving
and answering correspondence, including requests for prospectuses and statements
of additional information; preparing, printing and delivering prospectuses and
shareholder reports to prospective shareholders; complying with federal and
state securities laws pertaining to the sale of Administrative Class shares; and
assisting investors in completing application forms and selecting dividend and
other account options.

     Under the terms of the Administrative Services Plan, the Trust is permitted
to reimburse, out of the assets attributable to the Administrative Class shares
of each Fund and Portfolio, in an amount up to 0.25% on an annual basis of the
average daily net assets of that class, financial intermediaries that provide
certain administrative services for Administrative Class shareholders. Such
services may include, but are not limited to, the following: receiving,
aggregating and processing shareholder orders; furnishing shareholder sub-
accounting; providing and maintaining elective shareholder services such as
check writing and wire transfer services; providing and maintaining pre-
authorized investment plans; communicating periodically with shareholders;
acting as the sole shareholder of record and nominee for shareholders;
maintaining accounting records for shareholders; answering questions and
handling correspondence from shareholders about their accounts; and performing
similar account administrative services.

     The same entity may be the recipient of fees under both the Administrative
Distribution Plan and the Administrative Services Plan, but may not receive fees
under both plans with respect to the same assets.

     Each Administrative Plan provides that it may not be amended to increase
materially the costs which Administrative Class shareholders may bear under the
Plan without the approval of a majority of the outstanding voting securities of
the Administrative Class, and by vote of a majority of both (i) the Trustees of
the Trust and (ii) those Trustees ("disinterested Administrative Plan Trustees")
who are not "interested persons" of the Trust (as defined in the 1940 Act) and
who have no direct or indirect financial interest in the operation of the Plan
or any agreements related to it, cast in person at a meeting called for the
purpose of voting on the Plan and any related amendments.

     Each Administrative Plan provides that it may not take effect until
approved by vote of a majority of both (i) the Trustees of the Trust and (ii)
the disinterested Administrative Plan Trustees.  The Administrative Class
Distribution Plan further provides that it may not take effect unless approved
by the vote of a majority of the outstanding voting securities of the
Administrative Class.

     Each Administrative Plan provides that it shall continue in effect so long
as such continuance is specifically approved at least annually by the Trustees
and the disinterested Administrative Plan Trustees.  Each Administrative Plan
provides that any person authorized to direct the disposition of monies paid or
payable by a class pursuant to the Plan or any related agreement shall provide
to the Trustees, and the Board shall review at least quarterly, a written report
of the amounts so expended and the purposes for which such expenditures were
made.

     Each Administrative Plan provides that expenses payable under the Plan may
be carried forward for reimbursement for up to twelve months beyond the date in
which the expense is incurred, subject to the limit that not more than 0.25% of
the average daily net assets of Administrative Class shares may be used in any
month to pay expenses under the Plan.  Each Administrative Plan requires that
Administrative Class shares incur no interest or carrying charges.

     Rules of the NASD limit the amount of distribution fees that may be paid by
mutual funds.  "Service fees," defined to mean fees paid for providing
shareholder services or the maintenance of accounts (but not transfer agency
services) are not subject to the limits.  The Trust believes that some, if not
all, of the fees paid pursuant to both Administrative Plans will qualify as
"service fees" and therefore will not be limited by NASD rules.

                                       58
<PAGE>
 
PAYMENTS PURSUANT TO THE ADMINISTRATIVE PLANS
    
     For the fiscal years ended June 30, 1998 and June 30, 1997, the Trust paid
qualified service providers an aggregate of $502,216 and $132,422, respectively,
pursuant to the Administrative Services Plan and the Administrative Distribution
Plan.

    Of these aggregate totals, $362,416 and $111,468, respectively, were paid
pursuant to the Administrative Services Plan and/or the Administrative
Distribution Plan for the Funds listed below and were allocated as follows:

<TABLE>    
<CAPTION>
                                        YEAR ENDED          YEAR ENDED  
FUND                                     06/30/98            06/30/97  
- ----                                     --------            --------  
<S>                                     <C>                 <C>        
Equity Income Fund                       $  25,885           $  16,938 
Value Fund                                  11,304                   0 
Small-Cap Value Fund                        22,930              12,276 
Core Equity Fund                           211,557              79,366 
Mid-Cap Equity Fund                          1,846                   0 
Mid-Cap Growth Fund                         64,116               4,723 
Micro-Cap Growth Fund                        8,918               1,898 
Enhanced Equity Fund                         9,207                   0 
International Developed Fund                 6,653              13,205 
</TABLE>     
    
     The additional portions of the aggregate totals, $139,800 and $4,016, 
respectively, were paid pursuant to the Administrative Services Plan only for 
the Capital Appreciation, Emerging Markets and Small-Cap Growth Funds, and were 
allocated among these Funds as follows:

<TABLE>    
<CAPTION>
                                        YEAR ENDED          YEAR ENDED  
FUND                                     06/30/98            06/30/97  
- ----                                     --------            --------  
<S>                                     <C>                 <C>        
Capital Appreciation Fund                $ 137,462           $   3,297
Emerging Markets Fund                        1,802                 582
Small-Cap Growth Fund                          536                 137 
</TABLE> 

     The remaining Funds did not make payments under either Administrative Plan.
The Administrative Services Plan was not in effect in prior fiscal years.

PLAN FOR CLASS D SHARES
    
     As described above under "Management of the Trust - Fund Administrator,"
the Trust's Administration Agreement includes a plan (the "Class D Plan")
adopted in conformity with Rule 12b-1 under the 1940 Act which provides for the
payment of up to .25% of the Class D administrative fees as reimbursement for
expenses in respect of activities that may be deemed to be primarily intended to
result in the sale of Class D shares.     
    
     Specifically, the Administration Agreement provides that the Administrator
shall provide in respect of Class D shares (either directly or by procuring
through other entities, including various financial services firms such as
broker-dealers and registered investment advisers ("Service Organizations"))
some or all of the following services and facilities in connection with direct
purchases by shareholders or in connection with products, programs or accounts
offered by such Service Organizations ("Special Class D Services"): (i)
facilities for placing orders directly for the purchase of a Fund's Class D
shares and tendering a Fund's Class D shares for redemption; (ii) 
advertising     

                                       59
<PAGE>
 
with respect to a Fund's Class D shares; (iii) providing information about the
Funds; (iv) providing facilities to answer questions from prospective investors
about the Funds; (v) receiving and answering correspondence, including requests
for prospectuses and statements of additional information; (vi) preparing,
printing and delivering prospectuses and shareholder reports to prospective
shareholders; (vii) assisting investors in applying to purchase Class D shares
and selecting dividend and other account options; and (viii) shareholder
services provided by a Service Organization that may include, but are not
limited to, the following functions:  receiving, aggregating and processing
shareholder orders; furnishing shareholder sub-accounting; providing and
maintaining elective shareholder services such as check writing and wire
transfer services; providing and maintaining pre-authorized investment plans;
communicating periodically with shareholders; acting as the sole shareholder of
record and nominee for shareholders; maintaining accounting records for
shareholders; answering questions and handling correspondence from shareholders
about their accounts; issuing confirmations for transactions by shareholders;
performing similar account administrative services; providing such shareholder
communications and recordkeeping services as may be required for any program for
which the Service Organization is a sponsor that relies on Rule 3a-4 under the
1940 Act; and providing such other similar services as may reasonably be
requested to the extent the Service Organization is permitted to do so under
applicable statutes, rules, or regulations.

     The Administrator has entered into an agreement with the Distributor under
which the Distributor is compensated for providing or procuring certain of the
Special Class D Services at the rate of 0.25% per annum of all assets
attributable to Class D shares sold through the Distributor.

     The Trust and the Administrator understand that some or all of the Special
Class D Services provided pursuant to the Administration Agreement may be deemed
to represent services primarily intended to result in the sale of Class D
shares.  The Administration Agreement includes the Class D Plan to account for
this possibility.  The Administration Agreement provides that any portion of the
fees paid thereunder in respect of Class D shares representing reimbursement for
the Administrator's and the Distributor's expenditures and internally allocated
expenses in respect of Class D Services of any Fund shall not exceed the rate of
0.25% per annum of the average daily net assets of such Fund attributable to
Class D shares.

     In accordance with Rule 12b-1 under the 1940 Act, the Class D Plan may not
be amended to increase materially the costs which Class D shareholders may bear
under the Plan without the approval of a majority of the outstanding Class D
shares, and by vote of a majority of both (i) the Trustees of the Trust and (ii)
those Trustees ("disinterested Class D Plan Trustees") who are not "interested
persons" of the Trust (as defined in the 1940 Act) and who have no direct or
indirect financial interest in the operation of the Plan or any agreements
related to it, cast in person at a meeting called for the purpose of voting on
the Plan and any related amendments.  The Class D Plan may not take effect until
approved by vote of a majority of both (i) the Trustees of the Trust and (ii)
the disinterested Class D Plan Trustees.  In addition, the Class D Plan may not
take effect unless it is approved by the vote of a majority of the outstanding
Class D shares and it shall continue in effect only so long as such continuance
is specifically approved at least annually by the Trustees and the disinterested
Class D Plan Trustees.
 
     With respect to the Class D Plan, the Administration Agreement requires the
Administrator to present reports as to out-of-pocket expenditures and internal
expense allocations of the Administrator and the Distributor at least quarterly
and in a manner that permits the disinterested Class D Plan Trustees to
determine that portion of the Class D administrative fees paid thereunder which
represents reimbursements in respect of Special Class D Services.

     Rules of the NASD limit the amount of distribution fees that may be paid by
mutual funds.  "Service fees," defined to mean fees paid for providing
shareholder services or the maintenance of accounts (but not transfer agency
services) are not subject to the limits.  The Trust believes that most, if not
all, of the fees paid pursuant to the Class D Plan will qualify as "service
fees" and therefore will not be limited by NASD rules.

                                       60
<PAGE>
 
PURCHASES, EXCHANGES AND REDEMPTIONS
    
     Purchases, exchanges and redemptions of the Trust's shares are discussed in
the Class A, B and C Prospectus, the Class D Prospectus and the Retail Portfolio
Prospectus under the headings "How to Buy Shares," "Exchange Privilege," and
"How to Redeem," and in the Institutional Prospectus under the headings
"Purchase of Shares," "Redemption of Shares," and "Net Asset Value."     

     Certain clients of the Adviser or a Portfolio Manager whose assets would be
eligible for purchase by one or more of the Funds may purchase shares of the
Trust with such assets.  Assets so purchased by a Fund will be valued in
accordance with procedures adopted by the Board of Trustees.
    
     One or more classes of shares of the Funds and Portfolios may not be
qualified or registered for sale in all States.  Prospective investors should
inquire as to whether shares of a particular Fund or Portfolio, or class of
shares thereof, are available for offer and sale in their State of domicile or
residence.  Shares of a Fund or Portfolio may not be offered or sold in any
State unless registered or qualified in that jurisdiction, unless an exemption
from registration or qualification is available.     
    
     As described in the Class A, B, and C Prospectus, the Class D Prospectus
and the Retail Portfolio Prospectus under the caption "Exchange Privilege," and
in the Institutional Prospectus under the caption "Redemption of Shares," a
shareholder may exchange shares of any Fund or Portfolio for shares of the same
class of any other Fund or Portfolio of the Trust that is available for
investment, or any series of PIMS, on the basis of their respective net asset
values.  The original purchase date(s) of shares exchanged for purposes of
calculating any contingent deferred sales charge will carry over to the
investment in the new Fund or Portfolio.  For example, if a shareholder invests
in Class C shares of one Fund and 6 months later (when the contingent deferred
sales charge upon redemption would normally be 1%) exchanges his shares for
Class C shares of another Fund, no sales charge would be imposed upon the
exchange, but the investment in the other Fund would be subject to the 1%
contingent deferred sales charge until one year after the date of the
shareholder's investment in the first Fund as described in the Class A, B and C
Prospectus and the Retail Portfolio Prospectus under "Alternative Purchase
Arrangements."  With respect to Class B or Class C shares, or Class A shares
subject to a contingent deferred sales charge, if less than all of an investment
is exchanged, any portion of the investment attributable to capital appreciation
and/or reinvested dividends or capital gains distributions will be exchanged
first, and thereafter any portions exchanged will be from the earliest
investment made in the Fund or Portfolio from which the exchange was made.  For
federal income tax purposes, an exchange is treated as a sale of shares and
generally results in a capital gain or loss.     

     Orders for exchanges accepted prior to the close of regular trading on the
New York Stock Exchange on any day the Trust is open for business will be
executed at the respective net asset values determined as of the close of
business that day.  Orders for exchanges received after the close of regular
trading on the New York Stock Exchange on any business day will be executed at
the respective net asset values determined at the close of the next business
day.
    
     An excessive number of exchanges may be disadvantageous to the Trust.
Therefore, the Trust, in addition to its right to reject any exchange, reserves
the right to adopt a policy of terminating the exchange privilege of any
shareholder who makes more than a specified number of exchanges in a 12 month
period or in any calendar year. For instance, with respect to exchanges
involving Class A, Class B, Class C or Class D shares, the Trust currently
limits the number of "round trip" exchanges an investor may make.  An investor
makes a "round trip" exchange when the investor purchases shares of a particular
Fund or Portfolio, subsequently exchanges those shares for shares of a different
Fund or Portfolio and then exchanges back into the originally purchased Fund or
Portfolio.  The Trust has the right to refuse any exchange for any investor who
completes (by making the exchange back into the shares of the originally
purchased Fund or Portfolio) more than six round trip exchanges in any twelve-
month period. Although the Trust has no current intention of terminating or
modifying the exchange privilege other than as set forth in the preceding
sentence, it reserves the right to do so as described in the Prospectuses.

                                       61
<PAGE>
 
    
     The Trust reserves the right to suspend or postpone redemptions during any
period when: (a) trading on the New York Stock Exchange is restricted, as
determined by the SEC, or that Exchange is closed for other than customary
weekend and holiday closings; (b) the SEC has by order permitted such
suspension; or (c) an emergency, as determined by the SEC, exists, making
disposal of portfolio securities or valuation of net assets of a Fund or
Portfolio not reasonably practicable.     
    
     The Trust is committed to paying in cash all requests for redemptions by
any shareholder of record of the Funds and Portfolios, limited in amount with
respect to each shareholder during any 90-day period to the lesser of (i)
$250,000, or (ii) 1% of the net asset value of the Trust at the beginning of
such period. Although the Trust will normally redeem all shares for cash, it
may redeem amounts in excess of the lesser of (i) or (ii) above by payment in
kind of securities held by the particular Fund or Portfolio.
    
     Due to the relatively high cost of maintaining smaller accounts, the Trust
reserves the right to redeem shares in any account for their then-current value
(which will be promptly paid to the investor) if at any time, due to shareholder
redemption, the shares in the account do not have a value of at least a
specified amount, the minimums of which are currently set at $250 for Class A,
Class B and Class C shares, $2,000 for Class D shares, and $100,000 with respect
to Institutional Class and Administrative Class shares.  The Prospectuses may
set forth higher minimum account balances for one or more classes from time to
time depending upon the Trust's current policy.  An investor will be notified
that the value of the account is less than the minimum and allowed at least 30
days to bring the value of the account up to at least the specified amount
before the redemption is processed.  The Trust's Agreement and Declaration of
Trust, as amended and restated (the "Declaration of Trust"), also authorizes the
Trust to redeem shares under certain other circumstances as may be specified by
the Board of Trustees.  The Funds and Portfolios may also charge periodic
account fees for accounts that fall below minimum balances as described in the
Prospectuses.     


                     PORTFOLIO TRANSACTIONS AND BROKERAGE

INVESTMENT DECISIONS

     Investment decisions for the Trust and for the other investment advisory
clients of the Adviser and Portfolio Managers are made with a view to achieving
their respective investment objectives. Investment decisions are the product of
many factors in addition to basic suitability for the particular client involved
(including the Trust).  Thus, a particular security may be bought or sold for
certain clients even though it could have been bought or sold for other clients
at the same time.  Likewise, a particular security may be bought for one or more
clients when one or more clients are selling the security.  In some instances,
one client may sell a particular security to another client.  It also sometimes
happens that two or more clients simultaneously purchase or sell the same
security, in which event each day's transactions in such security are, insofar
as possible, averaged as to price and allocated between such clients in a manner
which in the Adviser's or the Portfolio Manager's opinion is equitable to each
and in accordance with the amount being purchased or sold by each.  There may be
circumstances when purchases or sales of portfolio securities for one or more
clients will have an adverse effect on other clients.

BROKERAGE AND RESEARCH SERVICES

     There is generally no stated commission in the case of fixed-income
securities, which are traded in the over-the-counter markets, but the price paid
by the Trust usually includes an undisclosed dealer commission or mark-up. In
underwritten offerings, the price paid by the Trust includes a disclosed, fixed
commission or discount retained by the underwriter or dealer.  Transactions on
U.S. stock exchanges and other agency transactions involve the payment by the
Trust of negotiated brokerage commissions.  Such commissions vary among
different brokers.  Also, a particular broker may charge different commissions
according to such factors as the difficulty and size of the transaction.
Transactions in foreign securities generally involve the payment of fixed
brokerage commissions, which are generally higher than those in the United
States.

                                       62
<PAGE>
 
    
     The Adviser and/or each Portfolio Manager places orders for the purchase
and sale of portfolio securities, options and futures contracts and buys and
sells such securities, options and futures for the Trust through a substantial
number of brokers and dealers.  In so doing, the Adviser or Portfolio Manager
uses its best efforts to obtain for the Trust the most favorable price and
execution available, except to the extent it may be permitted to pay higher
brokerage commissions as described below.  In seeking the most favorable price
and execution, the Adviser or Portfolio Manager, having in mind the Trust's best
interests, considers all factors it deems relevant, including, by way of
illustration, price, the size of the transaction, the nature of the market for
the security, the amount of the commission, the timing of the transaction taking
into account market prices and trends, the reputation, experience and financial
stability of the broker-dealer involved and the quality of service rendered by
the broker-dealer in other transactions.  Because the Portfolios invest
exclusively in Institutional Class shares of Underlying PIMCO Funds, they
generally do not pay brokerage commissions and related costs, but do indirectly
bear a proportionate share of these costs incurred by the Underlying PIMCO Funds
in which they invest.     
    
     For the fiscal years ended June 30, 1998, June 30, 1997 and June 30, 1996
(the fiscal year ended June 30, 1996 being an eight-month period), the following
amounts of brokerage commissions were paid by the Funds:     

<TABLE>    
<CAPTION>
                                       YEAR                YEAR      PERIOD
                                       ENDED              ENDED       ENDED
                                      6/30/98            6/30/97     6/30/96
                                      -------            -------     -------  
FUND  
- ----
<S>                                 <C>             <C>           <C> 
Equity Income Fund                  $   239,458     $   161,012   $  221,694
Value Fund                              437,002         203,403       65,062
Small-Cap Value Fund                    810,211         146,551       74,170
Capital Appreciation Fund             1,384,393         889,931      467,569
Mid-Cap Growth Fund                   1,115,609         634,436      382,764
Micro-Cap Growth Fund                   237,969         315,009      124,194
Small-Cap Growth Fund                    71,734         113,103       76,333
Enhanced Equity Fund                     61,193         196,460      114,363
Emerging Markets Fund                   238,241         591,312      622,328
International Developed Fund            326,193         498,041      306,741
Balanced Fund                            91,788         197,598       95,606
Core Equity Fund                        219,194         114,173       54,049
Mid-Cap Equity Fund                      44,404          31,940       16,691
Renaissance Fund*                     2,539,296         717,040          N/A
Growth Fund*                          4,154,740       2,632,126          N/A
Target Fund*                          5,577,623       2,584,198          N/A
Opportunity Fund*                     1,345,809       1,187,818          N/A
Innovation Fund*                        412,457         224,529          N/A
International Fund*                     785,827         748,412          N/A
International Growth Fund**              26,179             N/A          N/A
Precious Metals Fund*                    98,635          81,251          N/A
Tax Exempt Fund*                            N/A               0          N/A
                                    -----------     -----------   ----------
 
TOTAL                               $20,217,955     $12,268,343   $2,624,832
</TABLE>     
    
__________________     
     
*Amounts for the year ending June 30, 1997 are for the period 1/18/97 through
6/30/97.     
    
**Amounts for the year ended June 30, 1998 are for the period from 12/31/97
through 6/30/98.     

                                       63
<PAGE>
 
    
     For the fiscal period ended January 17, 1997 and the fiscal year ended
September 30, 1996, the following amounts of brokerage commissions were paid by
the predecessors of the Funds listed below (each of which was a series of PAF
during such periods and reorganized as a Fund of the Trust on January 17, 
1997):     

<TABLE>    
<CAPTION> 
                             10/1/96           YEAR
                                TO            ENDED
                             1/17/97         9/30/96
                             -------         --------
FUND 
- ----
<S>                          <C>             <C> 
Renaissance Fund             $  363,501      $   993,617
Growth Fund                   1,064,573        2,985,777
Target Fund                   1,375,601        3,080,238
Opportunity Fund                505,221        1,757,263
Innovation Fund                 105,556          228,473
International Fund              393,808        1,530,476
Precious Metals Fund             53,096           79,838
Tax Exempt Fund                       0                0
                             ----------      -----------
 
TOTAL                        $3,861,356      $10,655,682
</TABLE>     

    
     It has for many years been a common practice in the investment advisory
business for advisers of investment companies and other institutional investors
to receive research services from broker-dealers which execute portfolio
transactions for the clients of such advisers. Consistent with this practice,
the Adviser and Portfolio Managers receive research services from many broker-
dealers with which the Adviser and Portfolio Managers place the Trust's
portfolio transactions. These services, which in some cases may also be
purchased for cash, include such matters as general economic and security market
reviews, industry and company reviews, evaluations of securities and
recommendations as to the purchase and sale of securities. Some of these
services are of value to the Adviser and Portfolio Managers in advising various
of their clients (including the Trust), although not all of these services are
necessarily useful and of value in managing the Trust. The advisory fees paid by
the Trust are not reduced because the Adviser and Portfolio Managers receive
such services.     

     In reliance on the "safe harbor" provided by Section 28(e) of the
Securities Exchange Act of 1934, as amended (the "1934 Act"), the Adviser and
Portfolio Managers may cause the Trust to pay broker-dealers which provide them
with "brokerage and research services" (as defined in the 1934 Act) an amount of
commission for effecting a securities transaction for the Trust in excess of the
commission which another broker-dealer would have charged for effecting that
transaction.

     Consistent with the Rules of the NASD and subject to seeking the most
favorable price and execution available and such other policies as the Trustees
may determine, the Adviser or Portfolio Managers may also consider sales of
shares of the Trust as a factor in the selection of broker-dealers to execute
portfolio transactions for the Trust.

     The Adviser or a Portfolio Manager may place orders for the purchase and
sale of exchange-listed portfolio securities with a broker-dealer that is an
affiliate of the Adviser or Portfolio Manager where, in the judgment of the
Adviser or Portfolio Manager, such firm will be able to obtain a price and
execution at least as favorable as other qualified broker-dealers.

     Pursuant to rules of the SEC, a broker-dealer that is an affiliate of the
Adviser or a Portfolio Manager may receive and retain compensation for effecting
portfolio transactions for a Fund on a national securities exchange of which the
broker-dealer is a member if the transaction is "executed" on the floor of the
exchange by another broker which is not an "associated person" of the affiliated
broker-dealer, and if there is in effect a written contract between the Adviser
or Portfolio Manager and the Trust expressly permitting the affiliated broker-
dealer to receive and retain such compensation.

                                       64
<PAGE>
 
     SEC rules further require that commissions paid to such an affiliated
broker-dealer, the Adviser, or Portfolio Manager by a Fund on exchange
transactions not exceed "usual and customary brokerage commissions." The rules
define "usual and customary" commissions to include amounts which are
"reasonable and fair compared to the commission, fee or other remuneration
received or to be received by other brokers in connection with comparable
transactions involving similar securities being purchased or sold on a
securities exchange during a comparable period of time."

PORTFOLIO TURNOVER
    
     Except as described in the Prospectuses, the Adviser and Portfolio Managers
manage the portfolios of the Funds without regard generally to restrictions on
portfolio turnover.  The use of futures contracts and other derivative
instruments with relatively short maturities may tend to exaggerate the
portfolio turnover rate for some of the Funds. Trading in fixed income
securities does not generally involve the payment of brokerage commissions, but
does involve indirect transaction costs.  The use of futures contracts may
involve the payment of commissions to futures commission merchants.  The higher
the rate of portfolio turnover of a Fund, the higher these transaction costs
borne by the Fund generally will be.  To the extent portfolio turnover results
in the realization of net short-term capital gains, such gains are generally
taxed at ordinary income tax rates.  See "Taxation."  
    
     The portfolio turnover rate of a Fund or Portfolio is calculated by
dividing (a) the lesser of purchases or sales of portfolio securities for the
particular fiscal year by (b) the monthly average of the value of the portfolio
securities owned by the Fund or Portfolio during the particular fiscal year.  In
calculating the rate of portfolio turnover, there is excluded from both (a) and
(b) all securities, including options, whose maturities or expiration dates at
the time of acquisition were one year or less.  Proceeds from short sales and
assets used to cover short positions undertaken are included in the amounts of
securities sold and purchased, respectively, during the year.     

                                NET ASSET VALUE
    
     As indicated in the Class A, B and C Prospectus, the Class D Prospectus and
the Retail Portfolio Prospectus under the heading "How Net Asset Value is
Determined", and in the Institutional Prospectus under the heading "Net Asset
Value," the Trust's net asset value per share for the purpose of pricing
purchase and redemption orders is determined on each day the New York Stock
Exchange is open as of the close of regular trading (normally, 4:00 p.m. Eastern
time) on the Exchange.  The Trust expects that the holidays upon which the
Exchange will be closed are as follows:  New Year's Day, Martin Luther King, Jr.
Day, President's Day, Good Friday, Memorial Day, Independence Day, Labor Day,
Thanksgiving Day, and Christmas Day.     

     The values of portfolio securities that are traded on stock exchanges
outside the United States are based upon the price on the exchange as of the
close of business of the exchange immediately preceding the time of valuation.
Securities traded in over-the-counter markets in European and Pacific Basin
countries are normally completed well before 4:00 p.m. (Eastern time).  In
addition, European and Pacific Basin securities trading may not take place on
all business days in New York. Furthermore, trading takes place in Japanese
markets on certain Saturdays and in various foreign markets on days which are
not business days in New York and on which net asset value of these Funds is not
calculated.  The calculation of the net asset value of certain Funds that invest
in foreign securities may not take place contemporaneously with the
determination of the prices of portfolio securities used in such calculation. If
events materially affecting the values of portfolio securities occur between the
time their prices are determined and 4:00 p.m. (Eastern time), these securities
will be valued at fair value as determined by the Adviser or a Portfolio Manager
and approved in good faith by the Board of Trustees.

                                       65
<PAGE>
 
                                   TAXATION
   
     The following discussion is general in nature and should not be regarded as
an exhaustive presentation of all possible tax ramifications.  All shareholders
should consult a qualified tax adviser regarding their investment in a Fund or
Portfolio.     
    
     Each Fund and Portfolio intends to qualify annually and elect to be treated
as a regulated investment company under Subchapter M of the Internal Revenue
Code of 1986, as amended (the "Code"). To qualify as a regulated investment
company, each Fund and Portfolio generally must, among other things, (a) derive
in each taxable year at least 90% of its gross income from dividends, interest,
payments with respect to securities loans and gains from the sale or other
disposition of stock, securities or foreign currencies, or other income
(including but not limited to gains from options, futures or forward contracts)
derived with respect to its business of investing in such stock, securities or
currencies ("Qualifying Income Test") and (b) diversify its holdings so that, at
the end of each quarter of the taxable year, (i) at least 50% of the value of
the Fund's or Portfolio's total assets is represented by cash, cash items
(including receivables), U.S. Government securities, securities of other
regulated investment companies and other securities, with such other securities
of any one issuer limited for the purposes of this calculation to an amount not
greater than 5% of the value of the Fund's or Portfolio's total assets and 10%
of the outstanding voting securities of such issuer, and (ii) not more than 25%
of the value of its total assets is invested in the securities (other than U.S.
Government securities or the securities of other regulated investment companies)
of any one issuer or of two or more issuers which the Fund or Portfolio controls
and which are engaged in the same, similar or related trades or businesses. In
order to qualify for the special tax treatment accorded regulated investment
companies, each Fund and Portfolio must distribute each taxable year the sum of
(i) at least 90% of its investment company taxable income (which includes
dividends, interest and net short-term capital gains in excess of any net long-
term capital losses) and (ii) 90% of its tax exempt interest, net of expenses
allocable thereto. By qualifying as a regulated investment company, each Fund
and Portfolio will not be subject to federal income taxes to the extent that its
net investment income, net short-term capital gains and net long-term capital
gains are distributed. In addition, the Treasury Department is authorized to
promulgate regulations under which gains from foreign currencies (and options,
futures, and forward contracts on foreign currency) would not constitute
qualifying income for purposes of the Qualifying Income Test if such gains are
not directly related to investing in securities (or options and futures with
respect to stock or securities). To date, such regulations have not been 
issued.     
    
     In years when a Fund or Portfolio distributes amounts in excess of its
earnings and profits, such distributions may be treated in part as a return of
capital.  A return of capital is not taxable to a shareholder and has the effect
of reducing the shareholder's basis in the shares.     

     The proper tax treatment of income or loss realized by the Precious Metals
Fund from the retirement or sale of a Metal-Indexed Note is unclear.  The
Precious Metals Fund will report such income or loss as capital or ordinary
income or loss in a manner consistent with any Internal Revenue Service position
on the subject following the publication of such a position.  Gain or loss from
the sale or exchange of preferred stock indexed to the price of a natural
resource is expected to be capital gain or loss to the Precious Metals Fund.

DISTRIBUTIONS
    
     As a regulated investment company, each Fund and Portfolio generally will
not be subject to U.S. federal income tax on its investment company taxable
income and net capital gains (any net long-term capital gains in excess of the
sum of net short-term capital losses and capital loss carryovers from prior
years) designated by the Fund or Portfolio as capital gain dividends, if any,
that it distributes to shareholders on a timely basis.  Each Fund and Portfolio
intends to distribute to its shareholders, at least annually, substantially all
of its investment company taxable income and any net capital gains.  In
addition, amounts not distributed by a Fund or Portfolio on a timely basis in
accordance with a calendar year distribution requirement are subject to a
nondeductible 4% excise tax.  To avoid the tax, each Fund and Portfolio must
distribute during each calendar year an amount equal to the sum of (1) at least
98% of its ordinary income (not taking into account any capital gains or losses)
for the calendar year, (2) at least 98% of its capital gains in excess of its
capital losses (and adjusted for certain ordinary losses) for the twelve 
month      

                                       66
<PAGE>
 
    
period ending on October 31 of the calendar year, and (3) all ordinary income
and capital gains for previous years that were not distributed during such
years.  A distribution will be treated as paid on December 31 of the calendar
year if it is declared by a Fund or Portfolio in October, November or December
of that year to shareholders of record on a date in such a month and paid by the
Fund or Portfolio during January of the following year.  Such distributions will
be taxable to shareholders (other than those not subject to federal income tax)
in the calendar year in which the distributions are declared, rather than the
calendar year in which the distributions are received.  To avoid application of
the excise tax, each Fund and Portfolio intends to make its distributions in
accordance with the calendar year distribution requirement.     
    
     The tax status of each Fund and Portfolio and the distributions which it
may make are summarized in the Class A, B and C Prospectus, the Class D
Prospectus  and the Retail Portfolio Prospectus under the captions
"Distributions" and "Taxes", and in the Institutional Prospectus under the
caption "Dividends, Distributions and Taxes."  All dividends and distributions
of a Fund or Portfolio, whether received in shares or cash, are taxable and must
be reported on each shareholder's federal income tax return.  Distributions
received by tax-exempt shareholders will not be subject to federal income tax to
the extent permitted under the applicable tax exemption.     
    
     A portion of the dividends paid by Funds that invest in stock of U.S.
corporations may qualify for the deduction for dividends received by
corporations (subject generally to a 46-day holding period requirement).
Dividends paid by the other Funds generally are not expected to qualify for the
deduction for dividends received by corporations.
    
     Distributions of net capital gains, if any, designated as capital gain
dividends, are taxable as long-term capital gains (generally subject to a 20%
tax rate), regardless of how long the shareholder has held a Fund's or
Portfolio's shares and are not eligible for the dividends received deduction.
Any distributions that are not from a Fund's investment company taxable income
or net capital gains may be characterized as a return of capital to shareholders
or, in some cases, as capital gain.  The tax treatment of dividends and
distributions will be the same whether a shareholder reinvests them in
additional shares or elects to receive them in cash.  A Portfolio will not be
able to offset gains realized by one Fund in which such Portfolio invests
against losses realized by another Fund in which such Portfolio invests.  A
Portfolio's use of a fund-of-funds structure could therefore affect the amount,
timing and character of distributions to shareholders.     

     Dividends and distributions on shares of a Fund or Portfolio are generally
subject to federal income tax as described herein to the extent they do not
exceed the Fund's or Portfolio's realized income and gains, even though such
dividends and distributions may economically represent a return of a particular
shareholder's investment. Such distributions are likely to occur in respect of
shares purchased at a time when the net asset value of a Fund or Portfolio
reflects gains that are either unrealized, or realized but not distributed.     

SALES OF SHARES
    
     Upon the disposition of shares of a Fund or Portfolio (whether by
redemption, sale or exchange), a shareholder will realize a gain or loss.  Such
gain or loss will be capital gain or loss if the shares are capital assets in
the shareholder's hands, and will be long-term or short-term generally depending
upon the shareholder's holding period for the shares.  Long-term capital gains
will generally be taxed at a federal income tax rate of 20%.  Any loss realized
on a disposition will be disallowed to the extent the shares disposed of are
replaced within a period of 61 days beginning 30 days before and ending 30 days
after the shares are disposed of. In such a case, the basis of the shares
acquired will be adjusted to reflect the disallowed loss. Any loss realized by a
shareholder on a disposition of shares held by the shareholder for six months or
less will be treated as a long-term capital loss to the extent of any
distributions of capital gain dividends received by the shareholder with respect
to such shares. Depending on a Portfolio's percentage ownership in an Underlying
PIMCO Fund both before and after a redemption, a Portfolio's redemption of
shares of such Fund may cause the Portfolio to be treated as not receiving
capital gain income on the amount by which the distribution exceeds the
Portfolio's tax basis in the shares of the Underlying PIMCO Fund, but instead to
be treated as receiving a dividend taxable as ordinary income on the full amount
of the distribution. This

                                       67
<PAGE>
 
    
could cause shareholders of a Portfolio to recognize higher amounts of
ordinary income than if the shareholders had held the shares of the Underlying
PIMCO Funds directly.     

BACKUP WITHHOLDING
    
     A Fund or Portfolio may be required to withhold 31% of all taxable
distributions payable to shareholders who fail to provide the Fund or Portfolio
with their correct taxpayer identification number or to make required
certifications, or who have been notified by the Internal Revenue Service that
they are subject to backup withholding. Corporate shareholders and certain other
shareholders specified in the Code generally are exempt from such backup
withholding.  Backup withholding is not an additional tax. Any amounts withheld
may be credited against the shareholder's U.S. federal tax liability.     

OPTIONS, FUTURES, FORWARD CONTRACTS AND SWAP AGREEMENTS
    
     To the extent such investments are permissible for a Fund, the Fund's
transactions in options, futures contracts, hedging transactions, forward
contracts, straddles and foreign currencies will be subject to special tax rules
(including mark-to-market, constructive sale, straddle, wash sale and short sale
rules), the effect of which may be to accelerate income to the Fund, defer
losses to the Fund, cause adjustments in the holding periods of the Fund's
securities, convert long-term capital gains into short-term capital gains and
convert short-term capital losses into long-term capital losses.  These rules
could therefore affect the amount, timing and character of distributions to
shareholders, including the Portfolios.     

PASSIVE FOREIGN INVESTMENT COMPANIES
    
     Investment by a Fund in certain "passive foreign investment companies"
could subject the Fund to a U.S. federal income tax (including interest charges)
on distributions received from the company or on proceeds received from the
disposition of shares in the company, which tax cannot be eliminated by making
distributions to Fund shareholders.  However, the Fund may elect to treat a
passive foreign investment company as a "qualified electing fund," in which case
the Fund will be required to include its share of the company's income and net
capital gain annually, regardless of whether it receives any distribution from
the company.  The Fund also may make an election to mark the gains (and to a
limited extent losses) in such holdings "to the market" as though it had sold
and repurchased its holdings in those PFICs on the last day of the Fund's
taxable year.  Such gains and losses are treated as ordinary income and loss.
The QEF and mark-to-market elections may have the effect of accelerating the
recognition of income (without the receipt of cash) and increase the amount
required to be distributed for the Fund to avoid taxation.  Making either of
these elections therefore may require a Fund to liquidate other investments
(including when it is not advantageous to do so) to meet its distribution
requirement, which also may accelerate the recognition of gain and affect a
Fund's total return.     

FOREIGN CURRENCY TRANSACTIONS
    
     A Fund's transactions in foreign currencies, foreign currency-denominated
debt securities and certain foreign currency options, futures contracts and
forward contracts (and similar instruments) may give rise to ordinary income or
loss to the extent such income or loss results from fluctuations in the value of
the foreign currency concerned.     

FOREIGN TAXATION

     Income received by the Funds from sources within foreign countries may be
subject to withholding and other taxes imposed by such countries.  Tax
conventions between certain countries and the U.S. may reduce or eliminate such
taxes.  In addition, the Adviser and each Portfolio Manager intends to manage
the Funds with the intention of minimizing foreign taxation in cases where it is
deemed prudent to do so.  If more than 50% of the value of a Fund's 

                                       68
<PAGE>
 
total assets at the close of its taxable year consists of securities of foreign
corporations, such Fund will be eligible to elect to "pass-through" to the
Fund's shareholders the amount of eligible foreign income and similar taxes paid
by the Fund. If this election is made, a shareholder generally subject to tax
will be required to include in gross income (in addition to taxable dividends
actually received) his pro rata share of the foreign taxes paid by the Fund, and
may be entitled either to deduct (as an itemized deduction) his or her pro rata
share of foreign taxes in computing his taxable income or to use it as a foreign
tax credit against his or her U.S. federal income tax liability, subject to
certain limitations. In particular, shareholders must hold their shares (without
protection from risk of loss) on the ex-dividend date and for at least 15 more
days during the 30-day period surrounding the ex-dividend date to be eligible to
claim a foreign tax credit with respect to a gain dividend. No deduction for
foreign taxes may be claimed by a shareholder who does not itemize deductions.
Each shareholder will be notified within 60 days after the close of the Fund's
taxable year whether the foreign taxes paid by the Fund will "pass-through" for
that year.
    
     Generally, a credit for foreign taxes is subject to the limitation that it
may not exceed the shareholder's U.S. tax attributable to his or her total
foreign source taxable income.  For this purpose, if the pass-through election
is made, the source of the electing Fund's income will flow through to
shareholders of the Trust.  With respect to such Funds, gains from the sale of
securities will be treated as derived from U.S. sources and certain currency
fluctuation gains, including fluctuation gains from foreign currency-denominated
debt securities, receivables and payables will be treated as ordinary income
derived from U.S. sources.  The limitation on the foreign tax credit is applied
separately to foreign source passive income, and to certain other types of
income.  Shareholders may be unable to claim a credit for the full amount of
their proportionate share of the foreign taxes paid by the Fund. The foreign tax
credit can be used to offset only 90% of the revised alternative minimum tax
imposed on corporations and individuals and foreign taxes generally are not
deductible in computing alternative minimum taxable income.  Although a
Portfolio may itself be entitled to a deduction for such taxes paid by an
Underlying PIMCO Fund in which the Portfolio invests, the Portfolio will not be
able to pass any such credit or deduction through to its own shareholders.

ORIGINAL ISSUE DISCOUNT

     Some of the debt securities (with a fixed maturity date of more than one
year from the date of issuance) that may be acquired by a Fund may be treated as
debt securities that are issued originally at a discount.  Generally, the amount
of the original issue discount ("OID") is treated as interest income and is
included in income over the term of the debt security, even though payment of
that amount is not received until a later time, usually when the debt security
matures.  A portion of the OID includable in income with respect to certain
high-yield corporate debt securities may be treated as a dividend for U.S.
federal income tax purposes.

     Some of the debt securities (with a fixed maturity date of more than one
year from the date of issuance) that may be acquired by a Fund in the secondary
market may be treated as having market discount.  Generally, any gain recognized
on the disposition of, and any partial payment of principal on, a debt security
having market discount is treated as ordinary income to the extent the gain, or
principal payment, does not exceed the "accrued market discount" on such debt
security.  Market discount generally accrues in equal daily installments.  A
Fund may make one or more of the elections applicable to debt securities having
market discount, which could affect the character and timing of recognition of
income.

     Some debt securities (with a fixed maturity date of one year or less from
the date of issuance) that may be acquired by a Fund may be treated as having
acquisition discount, or OID in the case of certain types of debt securities.
Generally, the Fund will be required to include the acquisition discount, or
OID, in income over the term of the debt security, even though payment of that
amount is not received until a later time, usually when the debt security
matures.  The Fund may make one or more of the elections applicable to debt
securities having acquisition discount, or OID, which could affect the character
and timing of recognition of income.

     A Fund generally will be required to distribute dividends to shareholders
representing discount on debt securities that is currently includable in income,
even though cash representing such income may not have been 

                                       69
<PAGE>
 
received by the Fund. Cash to pay such dividends may be obtained from sales
proceeds of securities held by the Fund.

OTHER TAXATION

     Pursuant to Treasury Department regulations, certain expenses of
nonpublicly offered regulated investment companies, including advisory fees, are
not deductible by those regulated investment companies for purposes of
calculating the income of certain shareholders, generally including individuals
and entities that compute their taxable income in the same manner as an
individual (thus, for example, a qualified pension plan is not subject to this
rule). The shareholder's pro rata portion of such expenses will be treated as
income to the shareholder and will be deductible by the shareholder, subject to
the 2% "floor" on miscellaneous itemized deductions and other limitations on
itemized deductions set forth in the Code.  A regulated investment company
generally will be classified as nonpublicly offered unless it either has 500
shareholders at all times during a taxable year or continuously offers shares
pursuant to a public offering.
    
     Distributions also may be subject to additional state, local and foreign
taxes, depending on each shareholder's particular situation.  Under the laws of
various states, distributions of investment company taxable income generally are
taxable to shareholders even though all or a substantial portion of such
distributions may be derived from interest on certain federal obligations which,
if the interest were received directly by a resident of such state, would be
exempt from such state's income tax ("qualifying federal obligations").
However, some states may exempt all or a portion of such distributions from
income tax to the extent the shareholder is able to establish that the
distribution is derived from qualifying federal obligations.  Moreover, for
state income tax purposes, interest on some federal obligations generally is not
exempt from taxation, whether received directly by a shareholder or through
distributions of investment company taxable income (for example, interest on
FNMA Certificates and GNMA Certificates).  Each Fund and Portfolio will provide
information annually to shareholders indicating the amount and percentage of its
dividend distribution which is attributable to interest on federal obligations,
and will indicate to the extent possible from what types of federal obligations
such dividends are derived.  The Trust is organized as a Massachusetts business
trust.  Under current law, so long as each Fund and Portfolio qualifies for the
federal income tax treatment described above, it is believed that neither the
Trust nor any Fund or Portfolio will be liable for any income or franchise tax
imposed by Massachusetts.  Shareholders, in any event, are advised to consult
their own tax advisers with respect to the particular tax consequences to them
of an investment in a Fund or Portfolio.     


                               OTHER INFORMATION

CAPITALIZATION
    
     The Trust is a Massachusetts business trust established under an Agreement
and Declaration of Trust as amended and restated on January 14, 1997.  The
capitalization of the Trust consists solely of an unlimited number of shares of
beneficial interest.  The Board of Trustees may establish additional series
(with different investment objectives and fundamental policies) at any time in
the future.  Establishment and offering of additional series will not alter the
rights of the Trust's shareholders.  When issued, shares are fully paid, non-
assessable, redeemable and freely transferable. Shares do not have preemptive
rights or subscription rights.  In liquidation of a Fund or Portfolio, each
shareholder is entitled to receive his pro rata share of the net assets of that
Fund or Portfolio.     

PERFORMANCE INFORMATION
    
     Performance information is computed separately for each class of a Fund or
Portfolio.  Each Fund and Portfolio may from time to time include the total
return of each class of its shares in advertisements or in information furnished
to present or prospective shareholders.  The Renaissance and Balanced Funds and
the 30/70 Portfolio may from time to time include the yield and total return of
each class of their shares in advertisements or information furnished to present
or prospective shareholders.  Each Fund and Portfolio may from time to time     

                                       70
<PAGE>
 
    
include in advertisements the total return of each class (and yield of each
class in the case of the Renaissance and Balanced Funds and the 30/70 Portfolio)
and the ranking of those performance figures relative to such figures for groups
of mutual funds categorized by Lipper Analytical Services as having the same
investment objectives.  Information provided to any newspaper or similar listing
of the Fund's or Portfolio's net asset values and public offering prices will
separately present each class of shares.  The Funds and Portfolios also may
compute current distribution rates and use this information in their
Prospectuses and Statement of Additional Information, in reports to current
shareholders, or in certain types of sales literature provided to prospective
investors.     

CALCULATION OF YIELD
    
     Quotations of yield for certain of the Funds and Portfolios will be based
on all investment income per share (as defined by the SEC) during a particular
30-day (or one month) period (including dividends and interest), less expenses
accrued during the period ("net investment income"), and are computed by
dividing net investment income by the maximum offering price per share on the
last day of the period, according to the following formula:     

          YIELD = 2[( a-b + 1)/6/ -1]
                      ---            
                       cd

     where  a = dividends and interest earned during the period,

            b = expenses accrued for the period (net of reimbursements),

            c =  the average daily number of shares outstanding during the
period that were entitled to receive dividends, and

            d =  the maximum offering price per share on the last day of the
period.
    
     For the one month period ended [December 31, 1998], the yields of the
Balanced Fund and Renaissance Fund were as follows (Class D shares were not
offered during the period listed)[to be updated in a post-effective amendment]:
<TABLE>    
<CAPTION>
FUND                INSTITUTIONAL CLASS      ADMINISTRATIVE CLASS     CLASS A      CLASS B      CLASS C
- ----                --------------------     --------------------     --------     --------     --------
<S>                 <C>                      <C>                      <C>          <C>          <C>
Balanced Fund                3.01%                   N/A                2.47%        1.86%        1.87%
Renaissance Fund             0.67%                   N/A                0.25%       -0.48%       -0.48%    
</TABLE>     

    
     The yield of a Fund or Portfolio will vary from time to time depending upon
market conditions, the composition of its portfolio and operating expenses of
the Trust allocated to the Fund or Portfolio or its classes of shares.  These
factors, possible differences in the methods used in calculating yield should be
considered when comparing a Fund's or Portfolio's yield to yields published for
other investment companies and other investment vehicles.  Yield should also be
considered relative to changes in the value of a Fund's or Portfolio's various
classes of shares.  These yields do not take into account any applicable
contingent deferred sales charges.     

     The Trust, in its advertisements, may refer to pending legislation from
time to time and the possible impact of such legislation on investors,
investment strategy and related matters.  This would include any tax proposals
and their effect on marginal tax rates and tax-equivalent yields.  At any time
in the future, yields and total return may be higher or lower than past yields
and there can be no assurance that any historical results will continue.

CALCULATION OF TOTAL RETURN
    
     Quotations of average annual total return for a Fund or Portfolio, or a
class of shares thereof, will be expressed in terms of the average annual
compounded rate of return of a hypothetical investment in the Fund,      

                                       71
<PAGE>
 
    
Portfolio or class over periods of one, five, and ten years (up to the life of
the Fund or Portfolio), calculated pursuant to the following formula: P (1 +
T)/n/ = ERV (where P = a hypothetical initial payment of $1,000, T = the average
annual total return, n = the number of years, and ERV = the ending redeemable
value of a hypothetical $1,000 payment made at the beginning of the period).
Except as noted below, all total return figures reflect the deduction of a
proportionate share of Fund, Portfolio or class expenses on an annual basis, and
assume that (i) the maximum sales load (or other charges deducted from payments)
is deducted from the initial $1,000 payment and that the maximum contingent
deferred sales charge, if any, is deducted at the times, in the amounts, and
under the terms disclosed in the Prospectuses and (ii) all dividends and
distributions are reinvested when paid. Quotations of total return may also be
shown for other periods. The Funds and Portfolios may also, with respect to
certain periods of less than one year, provide total return information for that
period that is unannualized. Under applicable regulations, any such information
is required to be accompanied by standardized total return information.     
    
     The table below sets forth the average annual total return of certain
classes of shares of the following Funds for periods ended June 30, 1998.  For
periods prior to the "Inception Date" of a particular class of a Fund's shares,
total return presentations for the class are based on the historical performance
of Institutional Class shares of the Fund (the oldest class) adjusted, as
necessary, to reflect any current sales charges (including any contingent
deferred sales charges) associated with the newer class and any different
operating expenses associated with the newer class, such as 12b-1 distribution
and servicing fees (which are not paid by the Institutional Class) and
administrative fee charges.     
    
     AVERAGE ANNUAL TOTAL RETURN FOR PERIODS ENDED [DECEMBER 31, 1998]*     

[Note: This table to be updated in a Post-Effective Amendment filed under Rule 
485(b) prior to the effective date of this Amendment]

<TABLE>    
<CAPTION>
- ---------------------------------------------------------------------------------------
                                                        SINCE
                                                      INCEPTION    INCEPTION  INCEPTION  
FUND                 CLASS**      1 YEAR   5 YEARS     OF FUND      DATE OF    DATE OF
                                                     (ANNUALIZED)     FUND      CLASS
- ---------------------------------------------------------------------------------------
<S>               <C>             <C>      <C>       <C>           <C>        <C>
Equity Income      Institutional   21.84%    18.12%        17.50%   03/08/91   03/08/91
                  Administrative   21.58%    17.83%        17.21%              11/30/94
                         Class A   14.68%    16.33%        16.13%               1/17/97
                         Class B   15.47%    16.58%        16.18%               1/17/97
                         Class C   19.51%    16.80%        16.18%               1/17/97
                         Class D   21.38%    17.66%        17.04%                4/8/98
- ---------------------------------------------------------------------------------------
Value              Institutional   19.35%    19.03%        17.84%   12/30/91   12/30/91
                  Administrative   19.14%    18.76%        17.57%               1/17/97
                         Class A   12.32%    17.22%        16.35%               1/17/97
                         Class B   12.98%    17.48%        16.51%               1/17/97
                         Class C   16.98%    17.69%        16.51%               1/17/97
                         Class D   18.90%    18.57%        17.38%                4/8/98
- ---------------------------------------------------------------------------------------
Small-Cap          Institutional   17.76%    17.56%        17.65%    10/1/91    10/1/91
Value             Administrative   17.41%    17.27%        17.36%               11/1/95
                         Class A   10.88%    15.78%        16.21%               1/17/97
                         Class B   11.40%    16.02%        16.33%               1/17/97
                         Class C   15.42%    16.25%        16.33%               1/17/97
 
- ---------------------------------------------------------------------------------------
Capital            Institutional   32.97%    22.14%        20.79%     3/8/91     3/8/91
Appreciation      Administrative   32.55%    21.84%        20.49%               1/17/97
                         Class A   25.11%    20.30%        19.39%               1/17/97
                         Class B   26.39%    20.58%        19.43%               1/17/97
                         Class C   30.40%    20.77%        19.43%               1/17/97
                         Class D   32.38%    21.65%        20.30%                4/8/98
- ---------------------------------------------------------------------------------------
</TABLE>      

                                       72
<PAGE>
 
<TABLE>    
- ---------------------------------------------------------------------------------------
<S>               <C>              <C>       <C>           <C>      <C>        <C> 
Mid-Cap            Institutional   26.16%    20.25%        19.55%    8/26/91    8/26/91
 Growth           Administrative   25.75%    19.92%        19.23%              11/30/94
                         Class A   18.80%    18.43%        18.10%               1/17/97
                         Class B   19.76%    18.69%        18.20%               1/17/97
                         Class C   23.70%    18.89%        18.20%               1/17/97
                         Class D   25.63%    19.77%        19.07%                4/8/98
- ---------------------------------------------------------------------------------------
Micro-Cap          Institutional   33.95%    24.91%        24.80%    6/25/93    6/25/93
 Growth           Administrative   33.70%    24.61%        24.51%                4/1/96
- ---------------------------------------------------------------------------------------
Small-Cap          Institutional   19.33%    15.69%        22.09%     1/7/91     1/7/91
 Growth           Administrative   18.90%    15.52%        21.88%               9/27/95
- ---------------------------------------------------------------------------------------
Enhanced           Institutional   32.33%    21.02%        17.70%    2/11/91    2/11/91
 Equity           Administrative   31.85%    20.69%        17.39%               1/17/97
- ---------------------------------------------------------------------------------------
Emerging           Institutional  -27.08%     2.12%         2.38%     6/1/93     6/1/93
 Markets          Administrative  -27.31%     1.83%         2.09%               11/1/94
                         Class A  -31.40%     0.56%         0.84%               1/17/97
                         Class B  -31.47%     0.60%         1.05%               1/17/97
                         Class C  -28.58%     0.97%         1.23%               1/17/97
- ---------------------------------------------------------------------------------------
International      Institutional   15.69%    13.04%        12.13%     6/8/93     6/8/93
 Developed        Administrative   15.33%    12.74%        11.83%              11/30/94
                         Class A    9.14%    11.34%        10.46%               1/17/97
                         Class B    9.32%    11.50%        10.72%               1/17/97
                         Class C   13.38%    11.77%        10.87%               1/17/97
- ---------------------------------------------------------------------------------------
International      Institutional   N/A       N/A           35.50%   12/31/97   12/31/97
 Growth
- ---------------------------------------------------------------------------------------
Balanced           Institutional   19.91%    14.18%        14.04%    6/25/92    6/25/92
                         Class A   12.83%    12.44%        12.52%               1/17/97
                         Class B   13.59%    12.66%        12.77%               1/17/97
                         Class C   17.59%    12.90%        12.76%               1/17/97
- ---------------------------------------------------------------------------------------
Core Equity        Institutional   41.83%    N/A           28.57%   12/28/94   12/28/94
                  Administrative   41.55%    N/A           28.28%               5/31/95
- ---------------------------------------------------------------------------------------
</TABLE>     

                                       73
<PAGE>
 
<TABLE>     
- ---------------------------------------------------------------------------------------
<S>               <C>              <C>       <C>           <C>      <C>        <C>  
Mid-Cap Equity     Institutional   30.40%    N/A           24.54%   12/28/94   12/28/94
                  Administrative   30.09%    N/A           24.24%               1/17/97
- ---------------------------------------------------------------------------------------
</TABLE>     

     * Average annual total return presentations for a particular class of
     shares assume payment of the current maximum sales charge (if any)
     applicable to that class at the time of purchase and assume that the
     maximum CDSC (if any) for Class A, Class B and Class C shares was deducted
     at the times, in the amounts, and under the terms discussed in the Class A,
     B and C Prospectus.

     ** For all Funds listed above, Class A, Class B, Class C, Class D and
     Administrative Class total return presentations for periods prior to the
     Inception Date of a particular class reflect the prior performance of
     Institutional Class shares of the Fund (the oldest class) adjusted to
     reflect the actual sales charges (none in the case of Class D and the
     Administrative Class) of the newer class. The adjusted performance also
     reflects the higher Fund operating expenses applicable to Class A, Class B,
     Class C, Class D and Administrative Class shares. These include (i) 12b-1
     distribution and servicing fees, which are not paid by the Institutional
     Class and are paid by Class B and Class C (at a maximum rate of 1.00% per
     annum) and Class A and the Administrative Class (at a maximum rate of .25%
     per annum), and may be paid by Class D (at a maximum rate of .25% per
     annum) and (ii) administrative fee charges associated with Class A, Class B
     and Class C shares (a maximum differential of .15% per annum) and Class D
     shares (a maximum differential of 0.40% per annum).
    
          The table below sets forth the average annual total return of certain
classes of shares of the following Funds (each of which was a series of PAF
prior to its reorganization as a Fund of the Trust on January 17, 1997) for
periods ended June 30, 1998.  Accordingly,"Inception Date of Fund" refers to the
inception date of the PAF predecessor series.  Since Class C shares were offered
since the inception of each PAF series, total return presentations for periods
prior to the Inception Date of the other classes (with the exception of Class D
shares of the Innovation Fund) are based on the historical performance of Class
C shares, adjusted to reflect any current sales charges (including any
contingent deferred sales charges) associated with the newer class and any
different operating expenses associated with the newer class, such as 12b-1
distribution and servicing fees and administrative fee charges.  As described
below, performance presentations for periods prior to the Inception Date of
Class D shares of the Innovation Fund are based on the historical performance of
Class A shares.     
    
     AVERAGE ANNUAL TOTAL RETURN FOR PERIODS ENDED [DECEMBER 31, 1998]*     

[Note: This table to be updated in a Post-Effective Amendment filed under Rule 
485(b) prior to the effective date of this Amendment]

<TABLE>    
<CAPTION>
                                                                     SINCE INCEPTION   INCEPTION  INCEPTION 
                                                                         OF FUND        DATE OF    DATE OF
FUND                   CLASS***      1 YEAR     5 YEARS   10 YEARS     (ANNUALIZED)       FUND      CLASS
- -----------------------------------------------------------------------------------------------------------
<S>                  <C>            <C>        <C>        <C>        <C>               <C>        <C>
Renaissance**        Class A         23.78%     20.28%     14.69%(#)  14.65%(#)          4/18/88     2/1/91
                     Class B         24.99%     20.59%     14.48%     14.43%                        5/22/95
                     Class C         28.98%     20.75%     14.47%     14.42%                        4/18/88
                     Class D         30.99%(#)  21.66%(#)  15.33%(#)  15.28%(#)                      4/8/98
                     Institutional   31.48%(#)  22.14%(#)  15.79%(#)  15.74%(#)                    12/30/97
- -----------------------------------------------------------------------------------------------------------
Growth               Class A           33.27%     18.92%   17.49%(#)  18.33%(#)          2/24/84   10/26/90
                     Class B           34.97%     19.18%   17.30%     17.93%                        5/23/95
                     Class C           38.99%     19.37%   17.29%     17.92%                        2/24/84
- -----------------------------------------------------------------------------------------------------------
Target               Class A           20.47%     18.04%      N/A     18.98%            12/17/92   12/17/92
                     Class B           21.70%     18.26%      N/A     19.21%                        5/22/95
                     Class C           25.58%     18.46%      N/A     19.29%                       12/17/92
- -----------------------------------------------------------------------------------------------------------
</TABLE>     

                                       74
<PAGE>
 
<TABLE>     
- -----------------------------------------------------------------------------------------------------------
<S>                  <C>               <C>        <C>       <C>             <C>         <C>        <C> 
Opportunity          Class A            7.61%     12.00%    18.32%(#)       18.05%(#)    2/24/84   12/17/90
                     Class C           12.01%     12.42%    18.12%          17.65%                  2/24/84
- -----------------------------------------------------------------------------------------------------------
Innovation           Class A           39.96%     N/A        N/A              30.20%    12/22/94   12/22/94
                     Class B           41.95%     N/A        N/A              30.88%                5/22/95
                     Class C           45.97%     N/A        N/A              31.30%               12/22/94
                     Class D           48.10%     N/A        N/A              32.31%                 4/8/98
- -----------------------------------------------------------------------------------------------------------
International**      Class A            3.90%      7.38%    7.80%(#)          7.86%(#)   8/25/86     2/1/91
                     Class B            4.21%      7.51%    7.62%             7.59%                 5/22/95
                     Class C            8.19%      7.78%    7.61%             7.58%                 8/25/86
                     Institutional     10.44%(#)   9.02%(#) 8.85%(#)          8.82%(#)              9/30/98
                     Administrative    10.17%(#)   8.75%(#) 8.58%(#)          8.55%(#)              9/30/98
- -----------------------------------------------------------------------------------------------------------
Precious Metals**    Class A          -42.96%    -14.91%     N/A               -6.49%(#) 10/10/88    2/1/91
                     Class B          -43.47%    -15.01%     N/A               -6.70%               6/15/95
                     Class C          -41.28%    -14.71%     N/A               -6.72%              10/10/88
- -----------------------------------------------------------------------------------------------------------
</TABLE>     


  *  Average annual total return presentations for a particular class of shares
assume payment of the current maximum sales charge (if any) applicable to that
class at the time of purchase and assume that the maximum CDSC (if any) for
Class A, B and C shares was deducted at the times, in the amounts, and under the
terms discussed in the Class A, B and C Prospectus.

 **  The investment objective and policies of the Renaissance Fund and
International Fund were changed effective February 1, 1992 and September 1,
1992, respectively.  The investment objective and policies of the Precious
Metals Fund were changed effective November 15, 1994.  Performance information
for prior periods does not necessarily represent results that would have been
obtained had the current investment objective and policies been in effect for
all periods.

***  Class A, Class B, Class D, Institutional Class and Administrative Class
total return presentations for the Funds listed for periods prior to the
Inception Date of the particular class of a Fund (with the exception of Class D
shares of the Innovation Fund) reflect the prior performance of Class C shares
of the former PAF series, adjusted to reflect the actual sales charges (or no
sales charges in the case of Class D, Institutional Class and Administrative
Class shares) of the newer class. The adjusted performance also reflects any
different operating expenses associated with the newer class. These include (i)
12b-1 distribution and servicing fees, which are paid by Class C and Class B (at
a maximum rate of 1.00% per annum) and Class A and the Administrative Class (at
a maximum rate of .25% per annum), may be paid by Class D (at a maximum rate of
 .25% per annum), and are not paid by the Institutional Class and (ii)
administrative fee charges, which are lower than Class C charges for the
Institutional and Administrative Classes (a maximum differential of .15% per
annum) and higher for Class D (a maximum differential of .25% per annum).
(Administrative fee charges are the same for Class A, B and C shares.)
Performance presentations for periods prior to the Inception Date of Class D
shares of the Innovation Fund are based on the historical performance of Class A
shares (which were also offered since the inception of the former PAF series),
adjusted in the manner described above.

Note also that, prior to January 17, 1997, Class A, Class B and Class C shares
of the former PAF Funds were subject to a variable level of expenses for such
services as legal, audit, custody and transfer agency services.  As described in
the Class A, B and C Prospectus, for periods subsequent to January 17, 1997,
Class A, Class B and Class C shares of the Trust are subject to a fee structure
which essentially fixes these expenses (along with other administrative
expenses) under a single administrative fee based on the average daily net
assets of a Fund attributable to Class A, Class B and Class C shares.  Under the
current fee structure, the Growth Fund, Target Fund, Opportunity Fund and
International Fund are expected to have higher total Fund operating expenses
than their predecessors had under the fee structure for PAF (prior to January
17, 1997).  All other things being equal, such higher expenses have an adverse
effect on total return performance for these Funds after January 17, 1997.

(#) WHERE NOTED, THE METHOD OF ADJUSTMENT USED IN THE TABLE ABOVE FOR PERIODS
PRIOR TO THE INCEPTION DATE OF THE NOTED CLASSES OF THE NOTED FUNDS RESULTED IN
PERFORMANCE FOR THE PERIOD SHOWN WHICH IS HIGHER THAN IF THE HISTORICAL CLASS C
SHARE PERFORMANCE (I.E., THE OLDEST CLASS) WERE NOT ADJUSTED TO REFLECT THE
LOWER OPERATING EXPENSES OF THE NEWER CLASS. The following table shows the lower
performance figures that would be obtained if the performance for newer classes
with lower operating expenses were calculated by essentially tacking to such
classes actual performance the actual performance (with adjustment for actual
sales charges) of Class C shares, with their higher operating expenses, for
periods prior to the

                                       75
<PAGE>
 
initial offering date of the newer class (i.e., the total return presentations
below are based, for periods prior to the Inception Date of the noted classes,
on the historical performance of Class C shares adjusted to reflect the current
sales charges (if any) associated with the newer class, but not reflecting lower
                                                            ---
operating expenses associated with the newer class, such as lower administrative
fee charges and/or 12b-1 distribution and servicing fee charges).

    
              TOTAL RETURN FOR PERIODS ENDED [DECEMBER 31, 1998]
            (with no adjustment for operating expenses of the noted
              classes for periods prior to their inception dates)

[Note: This table to be updated in a Post-Effective Amendment filed under Rule 
485(b) prior to the effective date of this Amendment]

<TABLE>    
<CAPTION>
                                                                     SINCE INCEPTION
                                                                        OF FUND
     FUND                   CLASS      1 YEAR   5 YEARS   10 YEARS     (ANNUALIZED)
     ----------------------------------------------------------------------------------
     <S>                <C>            <C>      <C>       <C>        <C>
       Renaissance      Class A            --        --      14.46%            14.42%
                        Class D         30.25%    20.80%     14.50%            14.45%
                        Institutional   30.73%    20.89%     14.54%            14.49%
     ----------------------------------------------------------------------------------
        Growth          Class A            --        --      17.29%            17.92%
     ----------------------------------------------------------------------------------
       Opportunity      Class A            --        --      18.10%            17.64%
     ----------------------------------------------------------------------------------
       International    Class A            --        --       7.59%             7.56%
                        Institutional    9.18%     7.78%      7.61%             7.58%
                        Administrative   9.18%     7.78%      7.61%             7.58%   
     ----------------------------------------------------------------------------------
      Precious Metals   Class A            --        --       N/A              -6.66%
     ----------------------------------------------------------------------------------
</TABLE>     

    
     Shares of the Portfolios were initially offered on October 1, 1998 and no
performance information is provided in this Statement of Additional Information
for the Portfolios.     
    
     Performance information for a Fund or Portfolio may also be compared to:
(i) the Standard & Poor's 500 Composite Stock Price Index, the Dow Jones
Industrial Average, the Morgan Stanley Capital International EAFE (Europe,
Australasia, Far East) Index, the Morgan Stanley Capital International Emerging
Markets Free Index, the International Finance Corporation Emerging Markets
Index, the Baring Emerging Markets Index, or other unmanaged indexes that
measure performance of a pertinent group of securities; (ii) other groups of
mutual funds tracked by Lipper Analytical Services ("Lipper"), a widely used
independent research firm which ranks mutual funds by overall performance,
investment objectives, and assets, or tracked by other services, companies,
publications, or persons who rank mutual funds on overall performance or other
criteria; and (iii) the Consumer Price Index (measure for inflation) to assess
the real rate of return from an investment in the Funds.  Unmanaged indexes
(i.e., other than Lipper) generally do not reflect deductions for administrative
and management costs or expenses.  The Adviser and any of the Portfolio Managers
may also report to shareholders or to the public in advertisements concerning
the performance of the Adviser and/or the Portfolio Managers as advisers to
clients other than the Trust, and on the comparative performance or standing of
the Adviser and/or the Portfolio Managers in relation to other money managers.
Such comparative information may be compiled or provided by independent ratings
services or by news organizations.  Any performance information, whether related
to the Funds or Portfolios, the Adviser or the Portfolio Managers, should be
considered in light of the Funds' or Portfolios' investment objectives and
policies, characteristics and quality, and the market conditions during the time
period indicated, and should not be considered to be representative of what may
be achieved in the future.     
    
     The total return of each class (and yield of each class in the case of the
Renaissance and Balanced Funds and the 30/70 Portfolio) may be used to compare
the performance of each class of a Fund's or Portfolio's shares against certain
widely acknowledged standards or indexes for stock and bond market performance,
against interest      

                                       76
<PAGE>
 
rates on certificates of deposit and bank accounts, against the yield on money
market funds, against the cost of living (inflation) index, and against
hypothetical results based on a fixed rate of return.

     The S&P's Composite Index of 500 Stocks (the "S&P 500") is a market value-
weighted and unmanaged index showing the changes in the aggregate market value
of 500 stocks relative to the base period 1941-43.  The S&P 500 is composed
almost entirely of common stocks of companies listed on the New York Stock
Exchange, although the common stocks of a few companies listed on the American
Stock Exchange or traded over-the-counter are included.  The 500 companies
represented include 385 industrial, 15 transportation, 45 utilities and 55
financial services concerns.  The S&P 500 represents about 77% of the market
value of all issues traded on the New York Stock Exchange.

     The S&P's 400 Mid-Cap Index (the "S&P 400 Mid-Cap Index") is a market
value-weighted and unmanaged index showing the changes in the aggregate market
value of 400 stocks of companies whose capitalization range from $100 million to
over $5 billion and which represent a wide range of industries.  As of September
30, 1997, approximately 22% of the 400 stocks were stocks listed on the National
Association of Securities Dealers Automated Quotations ("NASDAQ") system, 76%
were stocks listed on the New York Stock Exchange and 7% were stocks listed on
the American Stock Exchange.  The Standard & Poor's Midcap 400 Index P/TR
consists of 400 domestic stocks chosen for market size (median market
capitalization of $1.52 billion), liquidity and industry group representation.
It is a market value-weighted index (stock price times shares outstanding), with
each stock affecting the index in proportion to its market value.  The index is
comprised of industrials, utilities, financials and transportation, in size
order.

     The NASDAQ-OTC Price Index (the "NASDAQ Index") is a market value-weighted
and unmanaged index showing the changes in the aggregate market value of
approximately 3,500 stocks relative to the base measure of 100.00 on February 5,
1971.  The NASDAQ Index is composed entirely of common stocks of companies
traded over-the-counter and often through the NASDAQ system.  Only those over-
the-counter stocks having only one market maker or traded on exchanges are
excluded.

     The Russell 2000 Small Stock Index is an unmanaged index of the 2000
smallest securities in the Russell 3000 Index, representing approximately 7% of
the Russell 3000 Index.  The Russell 3000 Index represents approximately 98% of
the U.S. equity market by capitalization.  The Russell 1000 Index is composed of
the 1,000 largest companies in the Russell 3000 Index.  The Russell 1000 Index
represents the universe of stocks from which most active money managers
typically select.  This large cap index is highly correlated with the S&P 500.
The Russell 1000 Value Index contains stocks from the Russell 1000 Index with a
less-than-average growth orientation. It represents the universe of stocks from
which value managers typically select.

     The Lehman Government Bond Index (the "SL Government Index") is a measure
of the market value of all public obligations of the U.S. Treasury; all
publicly-issued debt of all agencies of the U.S. Government and all quasi-
federal corporations; and all corporate debt guaranteed by the U.S. Government.
Mortgage-backed securities, flower bonds and foreign targeted issues are not
included in the SL Government Index.

     The Lehman Government/Corporate Bond Index (the "SL Government/Corporate
Index") is a measure of the market value of approximately 5,000 bonds.  To be
included in the SL Government/Corporate Index, an issue must have amounts
outstanding in excess of $1 million, have at least one year to maturity and be
rated "Baa" or higher by an NRSRO.

     BanXquote Money Market, a service of Masterfund Inc., provides the average
rate of return paid on 3-month certificates of deposit offered by major banks
and the average rate paid by major banks on bank money market funds. The
Donoghue Organization, Inc., a subsidiary of IBC USA Inc., publishes the Money
Fund Report which lists the 7-day average yield paid on money market funds.

                                       77
<PAGE>
 
     From time to time, the Trust may use, in its advertisements or information
furnished to present or prospective shareholders, data concerning the
performance and ranking of certain countries' stock markets, including
performance and ranking data based on annualized returns over one-, three-,
five- and ten-year periods.  The Trust may also use data about the portion of
world equity capitalization represented by U.S. securities.  As of December 31,
1997, the U.S. equity market capitalization represented approximately 40% of the
equity market capitalization of all the world's markets.  This compares with 52%
in 1980 and 70% in 1972.
    
     From time to time, the Trust may use, in its advertisements and other
information relating to certain of the Funds and Portfolios, data concerning the
performance of stocks relative to that of fixed income investments and relative
to the cost of living over various periods of time. The table below sets forth
the annual returns for each calendar year from 1973 through 1997 (as well as a
cumulative return and average annual return for that 25 year period) for the S&P
500 and Treasury bills (using the formula set forth after the table) as well as
the rates of inflation (based on the Consumer Price Index) during such 
periods.     

<TABLE>
<CAPTION>
                                                    Consumer Price
Period                   S&P 500   Treasury Bills        Index
- ------                   --------  ---------------  ---------------
<S>                      <C>       <C>              <C>
1973                       -14.7          6.9              8.8
1974                       -26.5          8.0             12.2
1975                        37.2          5.8              7.0
1976                        23.8          5.0              4.8
1977                        -7.2          5.1              6.8
1978                         6.5          7.2              9.0
1979                        18.4         10.4             13.3
1980                        32.4         11.2             12.4
1981                        -4.9         14.7              8.9
1982                        21.4         10.5              3.8
1983                        22.5          8.8              3.8
1984                         6.3          9.9              3.9
1985                        32.2          7.7              3.8
1986                        18.5          6.1              1.1
1987                         5.2          5.5              4.4
1988                        16.8          6.3              4.4
1989                        31.5          8.4              4.6
1990                        -3.2          7.8              6.1
1991                        30.5          5.6              3.1
1992                         7.7          3.5              2.9
1993                        10.1          2.9              2.7
1994                         1.3          3.9              2.7
1995                        37.4          5.6              2.7
1996                        23.1          5.2              3.3
1997                        33.4          5.3              1.7
- -------------------------------------------------------------------
Cumulative Return
1973-1997                2,059.4%       464.1%           279.6%

- -------------------------------------------------------------------
Average Annual Return
1973-1997                   13.1%         7.1%             5.5%

- ------------------------------------------------------------------- 
</TABLE>

     The average returns for Treasury bills were computed using the following
method.  For each month during a period, the Treasury bill having the shortest
remaining maturity (but not less than one month) was selected.  (Only the
remaining maturity was considered; the bill's original maturity was not
considered).  The return for the selected Treasury bill was computed based on
the price of the bill as of the last trading day of the previous month and the
price on the last trading day of the current month.  The price of the bill (P)
at each time (t) is given by:

          P\\t\\ =  [ 1- rd ]
                        ---   
                    [   360 ]
                  where,

                                       78
<PAGE>
 
                  r =  decimal yield on the bill at time t (the average of bid
                       and ask quotes); and
                  d =  the number of days to maturity as of time t.

    Advertisements and information relating to the Target Fund may use data
comparing the performance of stocks of medium-sized companies to that of other
companies.  The following table sets forth the annual returns for each year from
March 1981 (inception of Mid-Cap Index) through December 31, 1997 (as well as a
cumulative return and average annual return for this period) for stocks of
medium-sized companies (based on the Standard & Poor's Mid-Cap  Index), stocks
of small companies (based on the Russell 2000 Index) and stocks of larger
companies (based on the S&P 500).

<TABLE>
<CAPTION>
 
                           Small      Mid-Size     Large
Period                   Companies   Companies   Companies
- ------                   ----------  ----------  ----------
<S>                      <C>         <C>         <C>
1981 (2/28 -12/31)             1.8        10.6        -2.5
1982                          25.0        22.7        21.4
1983                          29.1        26.1        22.5
1984                          -7.3         1.2         6.3
1985                          31.1        36.0        32.2
1986                           5.7        16.2        18.5
1987                          -8.8        -2.0         5.2
1988                          24.9        20.9        16.8
1989                          16.2        35.6        31.5
1990                         -19.5        -5.1        -3.2
1991                          46.1        50.1        30.5
1992                          18.4        11.9         7.7
1993                          18.9        14.0        10.1
1994                          -1.8        -3.6         1.3
1995                          28.4        30.9        37.6
1996                          16.5        19.2        22.9
1997                          22.8        32.3        33.4
- -----------------------------------------------------------
Cumulative Return
2/28/81-12/31/97             731.7%    1,482.1%    1,235.3%

- -----------------------------------------------------------
Average Annual Return
2/28/81-12/31/97              13.4%       17.8%       16.6%

- -----------------------------------------------------------
</TABLE>
 
     From time to time, the Trust may use, in its advertisements and other
information relating to the Precious Metals Fund, data concerning the relevant
performance and volatility of portfolios consisting of all stocks, portfolios
consisting of all bonds and portfolios consisting of stocks and bonds blended
with stocks of companies engaged in the extraction, processing, distribution or
marketing of gold and other precious metals.  The following table shows the
annual returns for each calendar year from 1973 through 1997 (as well as
cumulative return and average annual return for that 25 year period) for an all-
stock portfolio (using the S&P 500), an all-bond portfolio (using the Salomon
Brothers Long Term Corporate Bond Index), and for a hypothetical portfolio with
45% of its assets in stocks comprising the S&P 500, 45% in bonds comprising the
Salomon Brothers Long Term Corporate Bond Index and 10% in stocks comprising the
Philadelphia Gold & Silver Index.


         RETURN AND CUMULATIVE VALUES OF STOCKS, BONDS, SAVINGS RATES
          VS. BALANCED PORTFOLIO (ASSUMING REBALANCING AT YEAR-ENDS)
          ----------------------------------------------------------

                                ANNUAL RETURNS
                                --------------

                                       79
<PAGE>
 
<TABLE>
<CAPTION>
              Small Co.    S&P 500   LT Corp.
               Stocks      Stocks     Bonds     T-Bills   Gold Index   Balanced*
               ------      ------     -----     -------   ----------   ---------
<S>           <C>         <C>        <C>        <C>       <C>          <C>
1973           -30.90%      -14.66%    1.14%       6.93%      102.59%      4.18%
1974           -19.95%      -26.47%   -3.06%       8.00%       23.82%    -10.91%
1975            52.82%       37.20%   14.64%       5.80%      -29.73%     20.36%
1976            57.38%       23.84%   18.65%       5.08%      -41.06%     15.01%
1977            25.38%       -7.18%    1.71%       5.12%       29.15%      0.45%
1978            23.46%        6.56%   -0.07%       7.18%        5.46%      3.47%
1979            43.46%       18.44%   -4.18%      10.38%      149.20%     21.34%
1980            39.88%       32.42%   -2.62%      11.24%       59.41%     19.35%
1981            13.88%       -4.91%   -0.96%      14.71%      -33.76%     -6.02%
1982            28.01%       21.41%   43.79%      10.54%       46.04%     33.94%
1983            39.67%       22.51%    4.70%       8.80%       -3.68%     11.88%
1984            -6.67%        6.27%   16.39%       9.85%      -30.07%      7.19%
1985            24.66%       32.16%   30.90%       7.72%      -22.23%     26.15%
1986             6.85%       18.47%   19.85%       6.16%       13.44%     18.59%
1987            -9.30%        5.23%   -0.27%       5.47%       42.54%      6.49%
1988            22.87%       16.81%   10.70%       6.35%      -33.48%      9.03%
1989            10.18%       31.49%   16.23%       8.37%       49.58%     26.43%
1990           -21.56%       -3.17%    6.78%       7.83%      -25.92%     -0.97%
1991            44.63%       30.55%   19.89%       5.59%       -9.83%     21.71%
1992            23.35%        7.67%    9.39%       3.51%      -26.11%      5.07%
1993            20.98%        9.99%   13.17%       2.89%      130.36%     23.46%
1994             3.11%        1.31%   -5.76%       3.90%      -11.16%     -3.12%
1995            34.46%       37.43%   27.20%       5.60%       -0.78%     29.01%
1996            17.62%       23.07%    1.40%       5.21%       -5.48%     10.46%
1997            22.78%       33.36%   12.95%       5.26%      -36.45%     17.19%

STANDARD
DEVIATION       22.64%       16.77%   12.05%       2.67%       51.31%     11.52%
73-97

CUMULATIVE
73-97            4253%        2052%     862%        451%         176%      1522%

ANNUALIZED
73-97            16.3%        13.1%     9.5%        7.1%         4.1%      11.8%
</TABLE>

- -----------------
 
*Balanced:
 --------
Stocks             45%
Bonds              45%
Gold               10%
Small Co.           0%
T-Bills             0% 


     The Trust may use, in its advertisements and other information, data
concerning the projected cost of a college education in future years based on
1996/1997 costs of college (using tuition and fees only) and an assumed rate of
increase for such costs.  For example, the table below sets forth the projected
cost of four years of college at a public college and a private college assuming
a steady increase in both cases of 3% per year.  In presenting this information,
the Trust is making no prediction regarding what will be the actual growth rate
in the cost of a college education, which may be greater or less than 3% per
year and may vary significantly from year to year. 

                                       80
<PAGE>
 
The Trust makes no representation that an investment in any of the Funds will
grow at or above the rate of growth of the cost of a college education.

<TABLE>
<CAPTION>
 
POTENTIAL COLLEGE COST TABLE

Start      Public     Private   Start    Public     Private
Year       College    College   Year     College    College
- ----       -------    -------   ----     -------    -------
<S>        <C>        <C>       <C>      <C>        <C>
1997         $13,015   $57,165   2005    $16,487    $72,415
1998         $13,406   $58,880   2006    $16,982    $74,587
1999         $13,808   $60,646   2007    $17,491    $76,825
2000         $14,222   $62,466   2008    $18,016    $79,130
2001         $14,649   $64,340   2009    $18,557    $81,504
2002         $15,088   $66,270   2010    $19,113    $83,949
2003         $15,541   $68,258   2011    $19,687    $86,467
2004         $16,007   $70,306   2012    $20,278    $89,061
</TABLE>

Costs assume a steady increase in the annual cost of college of 3% per year from
a 1996-97 base year amount. Actual rates of increase may be more or less than 3%
and may vary.

     In its advertisements and other materials, the Trust may compare the
returns over periods of time of investments in stocks, bonds and treasury bills
to each other and to the general rate of inflation.  For example, the average
annual return of each during the 25 years from 1973 through 1997 was:

               *Stocks:     13.1%
                Bonds:       9.5%
                T-Bills:     7.1%
                Inflation:   5.5%
    
          *Returns of unmanaged indexes do not reflect past or future
     performance of any of the Funds or Portfolios of PIMCO Funds:  Multi-
     Manager Series.  Stocks is represented by Ibbotson's Common Stock Total
     Return Index.  Bonds are represented by Ibbotson's Long-term Corporate Bond
     Index.  Treasury bills are represented by Ibbotson's Treasury Bill Index
     and Inflation is represented by the Cost of Living Index.  These are all
     unmanaged indexes, which can not be invested in directly.  While Treasury
     bills are insured and offer a fixed rate of return, both the principal and
     yield of investment securities will fluctuate with changes in market
     conditions. Source:  Ibbotson, Roger G., and Rex A. Sinquefiled, Stocks,
     Bonds, Bill and Inflation (SBBI), 1989, updated in Stocks, Bonds, Bills and
     Inflation 1996 Yearbook, Ibbotson Associates, Chicago. All rights 
     reserved.     

     The Trust may also compare the relative historic returns and range of
returns for an investment in each of common stocks, bonds and treasury bills to
a portfolio that blends all three investments.  For example, over the 25 years
from 1973 through 1997, the average annual return of stocks comprising the
Ibbotson's Common Stock Total Return Index ranged from -26.5% to 37.4% while the
annual return of a hypothetical portfolio comprised 40% of such common stocks,
40% of bonds comprising the Ibbotson's Long-term Corporate bond Index and 20% of
Treasury bills comprising the Ibbottson's Treasury Bill Index (a "mixed
portfolio") would have ranged from -10.2% to 28.2% over the same period.
The average annual returns of each investment for each of the years from 1973
through 1997 is set forth in the following table.

<TABLE>
<CAPTION>
                                                MIXED
 YEAR   STOCKS   BONDS   T-BILLS   INFLATION   PORTFOLIO
 ----   ------   -----   -------   ---------   --------- 
<S>     <C>      <C>     <C>       <C>         <C>
</TABLE> 

                                       81
<PAGE>
 
<TABLE> 
<S>     <C>      <C>       <C>         <C>        <C>
1973    -14.66%   1.14%     6.93%       8.80%      -4.02%
1974    -26.47%  -3.06%     8.00%      12.26%     -10.21%
1975     37.20%  14.64%     5.80%       7.01%      21.90%
1976     23.84%  18.65%     5.08%       4.81%      18.01%
1977     -7.18%   1.71%     5.12%       6.77%      -1.17%
1978      6.56%  -0.07%     7.18%       9.03%       4.03%
1979     18.44%  -4.18%    10.38%      13.31%       7.78%
1980     32.42%   2.61%    11.24%      12.40%      14.17%
1981     -4.91%  -0.96%    14.71%       8.94%       0.59%
1982     21.41%  43.79%    10.54%       3.87%      28.19%
1983     22.51%   4.70%     8.80%       3.80%      12.64%
1984      6.27%  16.39%     9.85%       3.95%      11.03%
1985     32.16%  30.90%     7.72%       3.77%      26.77%
1986     18.47%  19.85%     6.16%       1.13%      16.56%
1987      5.23%  -0.27%     5.46%       4.41%       3.08%
1988     16.81%  10.70%     6.35%       4.42%      12.28%
1989     31.49%  16.23%     8.37%       4.65%      20.76%
1990     -3.17%   6.87%     7.52%       6.11%       2.98%
1991     30.55%  19.79%     5.88%       3.06%      21.31%
1992      7.67%   9.39%     3.51%       2.90%       7.53%
1993     10.06%  13.17%     2.89%       2.75%       9.84%
1994      1.31%  -5.76%     3.90%       2.67%      -1.00%
1995     37.40%  27.20%     5.60%       2.70%      26.90%
1996     23.10%   1.40%     5.20%       3.30%      10.84%
1997     33.40%  12.90%     7.10%       1.70%      19.94%
</TABLE>

    
     Returns of unmanaged indexes do not reflect past or future performance of
     any of the Funds or Portfolios of PIMCO Funds:  Multi-Manager Series.
     Stocks are represented by Ibbotson's Common Stock Total Return Index.
     Bonds are represented by Ibbotson's Long-term Corporate Bond Index.
     Treasury bills are represented by Ibbotson's Treasury Bill Index and
     Inflation is represented by the Cost of Living Index.  Treasury bills are
     all unmanaged indexes, which can not be invested in directly. While
     Treasury bills are insured and offer a fixed rate of return, both the
     principal and yield of investment securities will fluctuate with changes in
     market conditions.  Source:  Ibbotson, Roger G., and Rex A. Sinquefiled,
     Stocks, Bonds, Bill and Inflation (SBBI), 1989, updated in Stocks, Bonds,
     Bills and Inflation 1996 Yearbook, Ibbotson Associates, Chicago.  All
     rights reserved.     

     The Trust may use in its advertisements and other materials examples
designed to demonstrate the effect of compounding when an investment is
maintained over several or many years.  For example, the following table shows
the annual and total contributions necessary to accumulate $200,000 of savings
(assuming a fixed rate of return) over various periods of time:

<TABLE>
<CAPTION>
     Investment        Annual        Total          Total
     Period            Contribution  Contribution   Saved
     ------            ------------  ------------  --------
     <S>               <C>           <C>           <C>
 
      30 Years         $ 1,979      $ 59,370        $200,000
      25 Years         $ 2,955      $ 73,875        $200,000
      20 Years         $ 4,559      $ 91,180        $200,000
      15 Years         $ 7,438      $111,570        $200,000
      10 Years         $13,529      $135,290        $200,000
</TABLE>

                                       82
<PAGE>
 
    
     This hypothetical example assumes a fixed 7% return
     compounded annually and a guaranteed return of principal.
     The example is intended to show the benefits of a long-term,
     regular investment program, and is in no way representative
     of any past or future performance of a Fund or Portfolio of
     PIMCO Funds: Multi-Manager Series. There can be no guarantee
     that you will be able to find an investment that would
     provide such a return at the times you invest and an
     investor in any of the Funds or Portfolio of PIMCO Funds:
     Multi-Manager Series should be aware that certain of the
     Funds and Portfolios of PIMCO Funds: Multi-Manager Series
     have experienced and may experience in the future periods of
     negative growth.    

     The Trust may set forth in its advertisements and other materials
information regarding the relative reliance in recent years on personal savings
for retirement income versus reliance on Social Security benefits and company
sponsored retirement plans.  For example, the following table offers such
information for 1997:
 
                                    % of Income for Individuals
                                  Aged 65 Years and Older in 1997*
                                  ------------------------------- 

                                  Social Security
                  Year            and Pension Plans        Other
                  ----            -----------------        -----

                  1997                   43%                57%

     * For individuals with an annual income of at least $51,000. Other
     includes personal savings, earnings and other undisclosed sources of
     income. Source: Social Security Administration.

   
     Articles or reports which include information relating to performance,
rankings and other characteristics of the Funds and Portfolios may appear in
various national publications and services including, but not limited to: The
Wall Street Journal, Barron's, Pensions and Investments, Forbes, Smart Money,
Mutual Fund Magazine, The New York Times, Kiplinger's Personal Finance, Fortune,
Money Magazine, Morningstar's Mutual Fund Values, CDA Investment Technologies
and The Donoghue Organization.  Some or all of these publications or reports may
publish their own rankings or performance reviews of mutual funds, including the
Funds, and may provide information relating to the Adviser and the Portfolio
Managers, including descriptions of assets under management and client base, and
opinions of the author(s) regarding the skills of personnel and employees of the
Adviser or the Portfolio Managers who have portfolio management responsibility.
From time to time, the Trust may include references to or reprints of such
publications or reports in its advertisements and other information relating to
the Funds and Portfolios.     

    
     From time to time, the Trust may set forth in its advertisements and other
materials information about the growth of a certain dollar-amount invested in
one or more of the Funds or Portfolios over a specified period of time and may
use charts and graphs to display that growth.     

    
     From time to time, the Trust may set forth in its advertisements and other
materials the names of and additional information regarding investment analysts
employed by the Portfolio Managers who assist with portfolio management and
research activities on behalf of the Funds.  The following lists various
analysts and the Portfolio Manager with whom they are associated:  Pacific
Investment Management -- Jane Howe, Mark Hudoff, Doris Nakamura and Ray Kennedy;
Columbus Circle -- Matthew J. Goldsmith, Michele A. Ward, J. Parke Logan, Edith
Levin-Novack, H. Karl Dimlich and Dianne L. Nicolosi.     

    
     Ibbotson Associates ("Ibbotson") has analyzed the risk and returns of the
Funds and relevant benchmark market indexes in a variety of market conditions.
Based on its independent research and analysis, Ibbotson may develop, from time
to time, model portfolios of the Funds and series of PIMS which indicate how, in
Ibbotson's      

                                       83
<PAGE>
 
opinion, a hypothetical investor with a 5+ year investment horizon might
allocate his or her assets among the Funds and series of PIMS. Ibbotson bases
its model portfolios on five levels of investor risk tolerance which it
developed and defines as ranging from "Very Conservative" (low volatility;
emphasis on capital preservation, with some growth potential) to "Very
Aggressive" (high volatility; emphasis on long-term growth potential). However,
neither Ibbotson nor the Trust offers Ibbotson's model portfolios as
investments. Moreover, neither the Trust, the Adviser, the Portfolio Managers
nor Ibbotson represent or guarantee that investors who allocate their assets
according to Ibbotson's models will achieve their desired investment results.
    
YEAR 2000 AND OTHER COMPLIANCE EFFORTS OF THE ADVISER
    
     The Adviser and its affiliates are currently in the process of attempting 
to ensure that all trading, accounting, and other systems are able to be Year
2000 compliant. The Year 2000 problem is the inability of computer systems to
correctly identify dates beyond December 31, 1999.
    
     The Adviser began to take inventory of all systems in 1997 in order to
resolve these issues on a company-wide scale.  The Adviser and its affiliates
have taken steps to understand the costs and work involved with fixing both
proprietary and purchased software, as well as to contact vendors and agencies
with which the Adviser and its affiliates interface.     
    
     Currently, the Adviser's estimate is that the cost necessary to make all
systems compatible will not be material.  The Adviser's plan to identify and
remedy potentially disruptive Year 2000 problems addresses the following areas:
internally developed software, purchased software, exchanges with external data
partners, external suppliers, customers, and embedded chip devices.  It is
anticipated that the conversion will continue into 1999 and will be completed on
time. Management of the Adviser is aware that unidentifiable complication may
trigger significantly greater expenses, however it feels that it will have the
necessary liquidity to resolve them in the event these factors become material.
Due to the nature of the Year 2000 problem, it is impossible to guarantee or
assure that there will not be disruptions or adverse results arising as a
consequence of entering the Year 2000.
    
     Another potential computer system problem may arise in conjunction with the
introduction of the euro. Whether introducing the euro to financial companies'
systems will be problematic is not fully known; however, the cost associated
with making systems recognize the euro is not currently expected to be 
material.     

                                       84
<PAGE>
 


VOTING RIGHTS

     Under the Declaration of Trust, the Trust is not required to hold annual
meetings of Trust shareholders to elect Trustees or for other purposes.  It is
not anticipated that the Trust will hold shareholders' meetings unless required
by law or the Declaration of Trust.  In this regard, the Trust will be required
to hold a meeting to elect Trustees to fill any existing vacancies on the Board
if, at any time, fewer than a majority of the Trustees have been elected by the
shareholders of the Trust.  Shareholders may remove a person serving as Trustee
either by declaration in writing or at a meeting called for such purpose.  The
Trustees are required to call a meeting for the purpose of considering the
removal of a person serving as Trustee if requested in writing to do so by the
holders of not less than 10% of the outstanding shares of the Trust.  In the
event that such a request was made, the Trust has represented that it would
assist with any necessary shareholder communications.  Shareholders of a class
of shares have different voting rights with respect to matters that affect only
that class.

    
     All classes of shares of the Funds and Portfolios have identical voting
rights except that each class of shares has exclusive voting rights on any
matter submitted to shareholders that relates solely to that class, and has
separate voting rights on any matter submitted to shareholders in which the
interests of one class differ from the interests of any other class.  These
shares are entitled to vote at meetings of shareholders.  Matters submitted to
shareholder vote must be approved by each Fund and Portfolio separately except
(i) when required by the 1940 Act shares shall be voted together and (ii) when
the Trustees have determined that the matter does not affect all Funds and
Portfolios, then only shareholders of the Fund(s) or Portfolio(s) affected shall
be entitled to vote on the matter. All classes of shares of a Fund or Portfolio
will vote together, except with respect to the Distribution and Servicing Plan
applicable to Class A, Class B or Class C shares, to the Distribution or
Administrative Services Plans applicable to Administrative Class shares, to the
Administration Agreement as applicable to a particular class or classes, or when
a class vote is required as specified above or otherwise by the 1940 Act.     

     The Trust's shares do not have cumulative voting rights.  Therefore, the
holders of more than 50% of the outstanding shares may elect the entire Board of
Trustees, in which case the holders of the remaining shares would not be able to
elect any Trustees.

    
     To avoid potential conflicts of interest, the 90/10 Portfolio, 60/40
Portfolio and 30/70 Portfolio will vote shares of each Underlying PIMCO Fund
which they own in proportion to the votes of all other shareholders in the
Underlying PIMCO Fund.     

CERTAIN OWNERSHIP OF TRUST SHARES

    
     As of [March  , 1999], the Trust believes that the Trustees and officers
of the Trust, as a group, owned less than one percent of each class of each Fund
and Portfolio and of the Trust as a whole.  As of October 13, 1998, the
following persons owned of record or beneficially 5% or more of the noted class
of shares of the following Funds:     

[Note: This table to be updated in a Post-Effective Amendment filed under Rule 
485(b) prior to the effective date of this Amendment]



                                       85
<PAGE>
 
PIMCO EQUITY INCOME FUND
<TABLE>     
<CAPTION> 
                                                  SHARES           PERCENTAGE OF   
                                                  BENEFICIALLY     OUTSTANDING     
                                                  OWNED            SHARES OWNED    
                                                  -----            ------------    
<S>                                               <C>              <C>             
INSTITUTIONAL                                                                      
Bank of New York Western Trust Co.                529,555.800      17.56%          
as Trustee for                                                                     
Pacific Life Insurance Company R.I.S.P.                                            
700 S. Flower Street, 2nd Floor                                                    
Los Angeles, California  90017                                                     
                                                                                   
Santa Barbara Foundation                          735,169.074       8.44           
15 East Carrillo Street                                                            
Santa Barbara, California 93101-2780                                               
                                                                                   
AM Castle & Company Employee P/S/P Equity Fund    734,059.600       8.43%          
P.O. Box 92956                                                                     
Chicago, Illinois  60675-2956                                                      
                                                                                   
AM Castle & Company Employee Equity Seg           721,281.967       8.28%          
P.O. Box 92956                                                                     
Chicago, Illinois  60675-2956                                                      
                                                                                   
Northern Trust Company as Trustee for             635,691.506       7.30%          
Brush Wellman Inc.                                                                 
P.O. Box 92956                                                                     
Chicago, Illinois  60675-0001                                                      
                                                                                   
Bank of America NT&SA as Trustee for              549,181.688       6.30%          
Mazda Motor of America                                                             
P.O. Box 3577, Terminal Annex                                                      
Los Angeles, California  90051-1577                                                
                                                                                   
ADMINISTRATIVE                                                                     
First Union National Bank  **                     651,854.242      96.47%  *       
401 S. Tyon Street, FRB-3                                                          
CMG Fiduciary Operations Funds Group                                               
Mail Code CMG-2-1151                                                               
Charlotte, North Carolina  28288-1151                                               
</TABLE>     

                                       86
<PAGE>
 
<TABLE>    
<CAPTION>  
                                                        SHARES           PERCENTAGE OF   
                                                        BENEFICIALLY     OUTSTANDING     
                                                        OWNED            SHARES OWNED    
                                                        -----            ------------    
<S>                                                     <C>              <C>              
CLASS A
Carn & Co. **                                              222,499.387   23.22%
USI Insurance Services Corporation
401(k) Plan
P.O. Box 96211
Washington, D.C.  20090-6211
 
Merrill Lynch Pierce Fenner & Smith Inc. **                115,996.086   12.10%
Attn:  Book Entry Department
4800 Deer Lake Drive E., Fl. 3
Jacksonville, Florida  32246-6484
 
Khosrow B. Semnani                                          71,016.690    7.41%
P.O. Box 3508
Salt Lake City, Utah  84110-3508
 
CLASS B
Merrill Lynch Pierce Fenner & Smith Inc. **                138,074.671   12.85%
Attn:  Book Entry Department
4800 Deer Lake Drive E., Fl. 3
Jacksonville, Florida  32246-6484
 
CLASS C
Merrill Lynch Pierce Fenner & Smith Inc. **                146,935.576    9.87%
Attn:  Book Entry Department
4800 Deer Lake Drive E., Fl. 3
Jacksonville, Florida  32246-6484
 
CLASS D
PIMCO Advisors L.P.                                          6,057.829   92.55%  *
Attn:  Vinh Nguyen
800 Newport Center Drive
Newport Beach, California  92660
 
Charles Schwab & Co., Inc. - Reinvest **                       487.293    7.44%
The Schwab Building
101 Montgomery Street
San Francisco, California 94104-4122
</TABLE>      

                                       87
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                        SHARES           PERCENTAGE OF                           
                                                        BENEFICIALLY     OUTSTANDING                             
                                                        OWNED            SHARES OWNED                            
                                                        -----            ------------                            
<S>                                                     <C>              <C>                                      
PIMCO VALUE FUND
 
INSTITUTIONAL
Pacific Life Insurance Company                           2,275,956.132   41.01%  *
Employee's Retirement Plan Trust
700 Newport Center Drive
Newport Beach, California 92660
 
The Northern Trust Company as Trustee for                  889,833.187   16.03%
Great Lakes Chemical Corporation
P.O. Box 92956
Chicago, Illinois  00006-0690
 
CMTA-GMPP & Allied Workers Pension Trust                   726,503.530   13.09%
c/o Associated Third Party Administrator
1640 South Loop Road
Alameda, California  94502
 
BAC Local 19 Pension Trust                                 447,274.240    8.06%
777 Davis Street
San Francisco, California  94126-2500
 
Pacific Life Foundation                                    334,055.176    6.02%
700 Newport Center Drive
Newport Beach, California 92660
 
California Race Track Association                          302,810.164    5.46%
P.O. Box 60014
Arcadia, California  91006-6014
 
</TABLE>      

                                       88
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                          SHARES           PERCENTAGE OF   
                                                          BENEFICIALLY     OUTSTANDING     
                                                          OWNED            SHARES OWNED    
                                                          -----            ------------    
<S>                                                       <C>              <C>              
CLASS A
Merrill Lynch Pierce Fenner & Smith Inc. **                154,424.372      11.98%
Attn:  Book Entry Department                                            
4800 Deer Lake Drive E., Fl. 3                                          
Jacksonville, Florida  32246-6484                                       
                                                                        
CLASS B                                                                 
Merrill Lynch Pierce Fenner & Smith Inc. **                499,083.943      22.33%
Attn:  Book Entry Department                                            
4800 Deer Lake Drive E., Fl. 3                                          
Jacksonville, Florida  32246-6484                                       
                                                                        
CLASS C                                                                 
Merrill Lynch Pierce Fenner & Smith Inc. **                533,594.396      10.05%
Attn:  Book Entry Department                                            
4800 Deer Lake Drive E., Fl. 3                                          
Jacksonville, Florida  32246-6484                                       
                                                                        
FTC & Co.**                                                276,023.537       5.20%
Datalynx House Acct.                                                    
P.O. Box 1731736                                                        
Denver, Colorado  80217-3736                                            
                                                                        
                                                                        
CLASS D                                                                 
PIMCO Advisors L.P.                                          6,301.244     100.00%  *
Attn:  Vinh Nguyen                                                      
800 Newport Center Drive                                                
Newport Beach, California  92660                                        
                                                                        
PIMCO VALUE 25 FUND                                                     
                                                                        
INSTITUTIONAL                                                           
PIMCO Advisors L.P.                                         18,750.000     100.00%  *
Attn:  R. M. Fitzgerald                                                 
800 Newport Center Drive                                                
Newport Beach, California  92660                                        
</TABLE>      
 

                                       89
<PAGE>
 
<TABLE>     
<CAPTION>                                                                         
                                                            SHARES           PERCENTAGE OF   
                                                            BENEFICIALLY     OUTSTANDING     
                                                            OWNED            SHARES OWNED    
                                                            -----            ------------    
<S>                                                         <C>              <C>              
CLASS A                                                                 
PIMCO Advisors L.P.                                         18,750.000       49.28%  *
Attn:  Vinh Nguyen
800 Newport Center Drive
Newport Beach, California  92660
 
Bear Stearns Securities Corporation FBO                      5,351.000       14.06%
1 MetroTech Center North                                                   
Brooklyn, New York  11201-3859                                             
                                                                           
Merrill Lynch Pierce Fenner & Smith Inc. **                  2,819.000        7.41%
Attn:  Book Entry Department                                               
4800 Deer Lake Drive E., Fl. 3                                             
Jacksonville, Florida  32246-6484                                          
                                                                           
Chris Najork and Linda Najork                                2,801.120        7.36%
JT TEN WROS NOT TC                                                         
1632 Promontory Drive                                                      
Cedar Hill, Texas  75104-1529                                              
                                                                           
Raymond James & Assoc. Inc. CSDN                             2,254.791        5.92%
Jennifer L. Elliott IRA                                                    
7133 Senton Circle                                                         
Arvada, Colorado  80003-3819                                               
                                                                           
CLASS B                                                                    
PIMCO Advisors L.P.                                         18,750.000       89.25%  *
Attn:  Vinh Nguyen                                                         
800 Newport Center Drive                                                   
Newport Beach, California  92660                                          
                                                                           

First Union Brokerage Services                               1,061.881        5.05%
Scott T. Philips SERG
</TABLE>      

                                       90
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                            SHARES           PERCENTAGE OF   
                                                            BENEFICIALLY     OUTSTANDING     
                                                            OWNED            SHARES OWNED    
                                                            -----            ------------    
<S>                                                         <C>              <C>               
3870 Byrnwycke Drive
Buford, Georgia  30519
 
CLASS C
PIMCO Advisors L.P.                                         18,750.000       45.84%  *
Attn:  Vinh Nguyen                                                        
800 Newport Center Drive                                                  
Newport Beach, California  92660                                         
                                                                          
Robert M. Greene Trust UA Jan 79                            12,418.904       30.36%  *
Berkeley Cardiovascular Group PSP                                         
FBO Robert M. Greene                                                      
671 The Alameda                                                           
Berkeley, California  94707-1601                                          
                                                                          
PIMCO SMALL-CAP VALUE FUND                                                
                                                                          
INSTITUTIONAL                                                             
Pacific Mutual Life Insurance Company                      493,191.567       14.53%
Employee's Retirement Plan Trust                                          
700 Newport Center Drive                                                  
Newport Beach, California 92660                                           
                                                                          
Mac & Company Account #855-577                             341,301.219       10.06%
Mellon Bank NA                                                            
Mutual Funds                                                              
P.O. Box 320                                                              
Pittsburgh, Pennsylvania  15230-0320                                      
                                                                          
FTC & Co. DATAlynx House Account **                        290,185.144        8.55%
P.O. Box 173736                                                           
Denver, Colorado  80217-3736                                              
                                                                          
Little Company Of Mary Hospital                            282,185.578        8.32%
Mutual Fund Operations                                                    
P.O. Box 3198                                                             
Pittsburgh, Pennsylvania  15230-3198                                      
                                                                          
Lucile Packard Foundation for Children                     220,202.390        6.49%
</TABLE>      

                                       91
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                         SHARES           PERCENTAGE OF   
                                                         BENEFICIALLY     OUTSTANDING     
                                                         OWNED            SHARES OWNED     
                                                         -----            ------------    
<S>                                                      <C>              <C>               
725 Welch Road
Palo Alto, California  94304
  
ADMINISTRATIVE
First Union National Bank **                               462,027.164    47.50%  *
1525 West WT Harris Boulevard NC 1151                                   
Charlotte, North Carolina 28288-1151                                    
                                                                        
National Financial Services Corporation for the            187,744.282    19.30%
Exclusive Benefit of Our Customers                                      
1 World Trade Center                                                    
200 Liberty Street                                                      
New York, New York  10281                                               

Wells Fargo Bank TTEE FBO                                   95,791.068     9.85%
Choicemaster (First Interstate)                                         
P. O. Box 9800 Mutual Funds                                             
Calabasas, California  91302-9800                                       
                                                                        
CLASS A                                                                 
Merrill Lynch Pierce Fenner & Smith Inc. **                764,711.162    14.13%
Attn:  Book Entry Department                                            
4800 Deer Lake Drive E., Fl. 3                                          
Jacksonville, Florida  32246-6484                                       
                                                                        
CLASS B                                                                 
Merrill Lynch Pierce Fenner & Smith Inc. **              1,804,494.589    26.70%  *
Attn:  Book Entry Department                                            
4800 Deer Lake Drive E., Fl. 3                                          
Jacksonville, Florida  32246-6484                                       
                                                                        
CLASS C                                                                 
Merrill Lynch Pierce Fenner & Smith Inc. **              2,097,404.238    27.14%  *
Attn:  Book Entry Department
</TABLE>      

                                       92
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                         SHARES          PERCENTAGE OF
                                                         BENEFICIALLY    OUTSTANDING
                                                         OWNED           SHARES OWNED
                                                         -----           ------------
<S>                                                      <C>             <C> 
4800 Deer Lake Drive E., Fl. 3
Jacksonville, Florida  32246-6484
 
FTC & Co.**                                                402,373.776    5.20%
Datalynx House Acct
P.O. Box 1731736
Denver, Colorado  80217-3736
 
PIMCO CAPITAL APPRECIATION FUND
 
INSTITUTIONAL
Donaldson Lufkin & Jenrette**                            6,429,724.450   21.18%
Pershing Division
P.O. Box 2052
Jersey City, New Jersey 07303-2052
 
Wendel & Co.                                             3,513,743.489   11.57%
c/o The Bank of New York
Coopers & Lybrand Retirement Trust
Mutual Fund Reorg. Department
P. O. Box 1066
Wall Street Station
New York, New York  10286
 
Charles Schwab & Co., Inc. - Reinvest **                 2,353,977.835    7.75%
The Schwab Building
101 Montgomery Street
San Francisco, California 94104-4122
 
ADMINISTRATIVE
Invesco Trust Company FBO                                2,399,989.655   31.34%  *
Reynolds & Reynolds 401k Plan
P. O. Box 77405
Atlanta, Georgia  30357
 
New York Life Trust Company **                           1,839,473.250   24.02%
51 Madison Avenue, Room 117A
New York, New York  10010
</TABLE>       
 

                                       93
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                         SHARES          PERCENTAGE OF
                                                         BENEFICIALLY    OUTSTANDING
                                                         OWNED           SHARES OWNED
                                                         -----           ------------
<S>                                                      <C>             <C> 
Certain Employee (Fidelity) **                           1,080,897.983   14.12%
100 Magetian KWIC
Covington, Kentucky  41015
 
First Union National Bank **                             1,023,642.873   13.37%
1525 West WT Harris Boulevard NC 1151
Charlotte, North Carolina  28288-1151
 
National Financial Services Corporation for **             522,357.792    6.82%
the Exclusive Benefit of Our Customers
1 World Financial Center
200 Liberty Street
New York, New York  10281
 
CLASS A
Merrill Lynch Pierce Fenner & Smith Inc. **                899,501.410   24.90%
Attn:  Book Entry Department
4800 Deer Lake Drive E., Fl. 3
Jacksonville, Florida  32246-6484
 
Carn & Co. 02087501                                        405,462.819   11.22%
American Yazaki Employee Savings
and Retirement Plan
Attn:  Mutual Funds - Star
P. O. Box 96211
Washington, D.C.  20090-6211
 
Wachovia Bank FBO VIT Pension Plan                         186,154.417    5.15%
Attn: Mutual Fund Department, 5th Floor
P. O. Box 27602
Richmond, Virginia  23261-7602
 
CLASS B
Merrill Lynch Pierce Fenner & Smith Inc. **                313,631.477   16.53%
Attn:  Book Entry Department
4800 Deer Lake Drive E., Fl. 3
Jacksonville, Florida  32246-6484
</TABLE>     

                                       94
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                         SHARES          PERCENTAGE OF
                                                         BENEFICIALLY    OUTSTANDING
                                                         OWNED           SHARES OWNED
                                                         -----           ------------
<S>                                                      <C>             <C> 
CLASS C
Merrill Lynch Pierce Fenner & Smith Inc. **                392,373.682   13.09%
Attn:  Book Entry Department
4800 Deer Lake Drive E., Fl. 3
Jacksonville, Florida  32246-6484
 
CLASS D
Charles Schwab & Co., Inc. - Reinvest.**                     3,998.710   50.39%  *
The Schwab Building
101 Montgomery Street
San Francisco, California 94104-4122
 
PIMCO Advisors L.P.                                          3,935.458   49.60%  *
Attn:  Vinh Nguyen
800 Newport Center Drive
Newport Beach, California  92660
 
PIMCO MID-CAP GROWTH FUND
 
INSTITUTIONAL
Norwest Bank Minnesota NA Custodian FBO                  1,132,593.144    6.12%
Parkview Memorial Hospital
c/o Mutual Fund Processing
733 Marquette Avenue MS 0036
Minneapolis, Minnesota  55479-0036
 
Charles Schwab & Co., Inc. - Reinvest **                 1,114,176.406    6.02%
The Schwab Building
101 Montgomery Street
San Francisco, California 94104-4122

ADMINISTRATIVE
Certain Employee (Fidelity) **                           1,270,852.457   32.54%  *
100 Magellan KW1C
Covington, Kentucky  41015
 
National Financial Services Corporation for **           1,021,020.745   26.15%  *
the Exclusive Benefit of Our Customers
</TABLE>     

                                       95
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                         SHARES          PERCENTAGE OF
                                                         BENEFICIALLY    OUTSTANDING
                                                         OWNED           SHARES OWNED
                                                         -----           ------------
<S>                                                      <C>             <C> 
1 World Financial Center
200 Liberty Street
New York, New York  10281
 
UMB TTEE FBO                                               440,528.148   11.28%
Andrew Profit Sharing Trust
c/o American Century Services
4500 Main
Kansas City, Missouri  64111
 
First Union National Bank **                               278,902.116    7.14%
1525 West WT Harris Boulevard NC 1151
Charlotte, North Carolina  28288-1151
 
New York Life Trust Company **                             255,947.905    6.55%
51 Madison Avenue, Room 117A
New York, New York  10010
 
CLASS A
Merrill Lynch Employee Services                          1,153,483.996   26.91%  *
Merrill Lynch Trust Company FSB FBO
401k Plans Masterworks
P. O. Box 62000
San Francisco, California  94162-0001
 
Merrill Lynch Pierce Fenner & Smith Inc. **                971,744.951   22.67%
Attn:  Book Entry Department
4800 Deer Lake Drive E., Fl. 3
Jacksonville, Florida  32246-6484
 
CLASS B
Merrill Lynch Pierce Fenner & Smith Inc. **                863,218.301   22.58%
Attn:  Book Entry Department
4800 Deer Lake Drive E., Fl. 3
Jacksonville, Florida  32246-6484
 
CLASS C
Merrill Lynch Pierce Fenner & Smith Inc. **              1,019,089.802   17.37%
Attn:  Book Entry Department
</TABLE>      

                                       96
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                         SHARES          PERCENTAGE OF
                                                         BENEFICIALLY    OUTSTANDING
                                                         OWNED           SHARES OWNED
                                                         -----           ------------
<S>                                                      <C>             <C> 
4800 Deer Lake Drive E., Fl. 3
Jacksonville, Florida  32246-6484
 
CLASS D
Charles Schwab & Co., Inc. - Reinvest.**                     6,670.544   61.52%  *
The Schwab Building
101 Montgomery Street
San Francisco, California 94104-4122
 
PIMCO Advisors L.P.                                          4,171.882   38.47%  *
Attn:  Vinh Nguyen
800 Newport Center Drive
Newport Beach, California  92660
 
PIMCO MICRO-CAP GROWTH FUND
 
INSTITUTIONAL
Charles Schwab & Co., Inc. - Reinvest.**                 2,660,292.040   21.79%
The Schwab Building
101 Montgomery Street
San Francisco, California 94104-4122
 
Donald Lufkin & Jenrette**                               2,260,460.254   18.52%
Pershing Division
P.O. Box 2052
Jersey City, New Jersey  07303-2052
 
Bost & Co.                                               1,179,579.025    9.66%
Dominion Resources
Attn: Mutual Fund Operations
P.  O. Box 3198
Pittsburgh, Pennsylvania  15230-3198
 
University of Southern California                        1,020,412.993    8.36%
Treasurer's Office
University Park, BKS 402
Los Angeles, California 90089-2541
 
Mac & Co.                                                  854,902.601    7.00%
</TABLE>      

                                       97
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                           SHARES          PERCENTAGE OF
                                                           BENEFICIALLY    OUTSTANDING
                                                           OWNED           SHARES OWNED
                                                           -----           ------------
<S>                                                        <C>             <C>            
Mellon Bank N.A.
Public Service of New Mexico
P. O. Box 3198
Mutual Funds Operations
Pittsburgh, Pennsylvania  15230-3198
 
Mac & Co.                                                  681,890.401      5.59%
Oberlin College                                                         
Attn: Mutual Fund Operations                                            
P.  O. Box 3198                                                         
Pittsburgh, Pennsylvania  15230-3198                                    
                                                                        
ADMINISTRATIVE                                                          
Northern Trust as Trustee for                              129,049.520     87.08%  *
Sunday School Board                                                     
dba LifeWay Christian Resources                                         
P.O. Box 92956                                                          
Chicago, Illinois  60675                                                
                                                                        
New York Life Trust Company **                              13,422.843      9.06%
51 Madison Avenue, Room 117A                                            
New York, New York  10010                                               
                                                                        
PIMCO SMALL-CAP GROWTH FUND                                             
                                                                        
INSTITUTIONAL                                                           
The Jewish Federation of                                   921,718.855     20.96%
Metropolitan Chicago                                                    
One South Franklin Street, Room 625                                     
Chicago, Illinois 60606-4609                                            
                                                                        
DMNH Foundation                                            655,850.090     14.92%
2001 Colorado Blvd.                                                     
City Park                                                               
Denver, Colorado  00008-0205                                            
                                                                        
ESOR & Co.                                                 453,722.992     10.32%
Associated Bank Green Bay
Trust Operations Department
</TABLE>      

                                       98
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                           SHARES          PERCENTAGE OF
                                                           BENEFICIALLY    OUTSTANDING
                                                           OWNED           SHARES OWNED
                                                           -----           ------------
<S>                                                        <C>             <C>            
P. O. Box 19006
Green Bay, Wisconsin  54307-9006
 
Employees Retirement System of Jersey City                 449,432.298     10.22%
325 Palisade Avenue                                                     
Jersey City, New Jersey  07307-1714                                     
                                                                        
Berklee College of Music, Inc.                             417,256.011      9.49%
1140 Boylston Street                                                    
Boston, Massachusetts  02215-3693                                       
                                                                        
Auburn Theological Seminary                                316,630.017      7.20%
3041 Broadway                                                           
New York, New York  10027-5710                                          
                                                                        
Pacific Mutual Life Insurance Company                      259,765.912      5.91%
Employee's Retirement Plan Trust                                        
700 Newport Center Drive                                                
Newport Beach, California 92660                                         
                                                                        
PIMCO CORE EQUITY FUND                                                  
                                                                        
INSTITUTIONAL                                                           
Pacific Life Foundation                                     35,876.402     37.05%  *
700 Newport Center Drive                                                
Newport Beach, California  92660                                        
                                                                        
California Race Track Association                           32,320.660     33.38%  *
P. O. Box 60014
Arcadia, California  91006-6014
</TABLE>      

                                       99
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                         SHARES          PERCENTAGE OF
                                                         BENEFICIALLY    OUTSTANDING
                                                         OWNED           SHARES OWNED
                                                         -----           ------------
<S>                                                      <C>             <C>             
Mac & Co.                                                   19,879.614   20.53%
Fine Quaker L.P.
P. O. Box 3198
Mutual Fund Operations
Pittsburgh, Pennsylvania  15230-3198
 
ADMINISTRATIVE
The Bank of New York as Trustee for                      6,442,997.929   92.50%  *
Melville Corporation
One Wall Street, 7th Floor MT/MC
New York, New York  10286-0001
 
PIMCO MID-CAP EQUITY FUND
 
INSTITUTIONAL
Pacific Mutual Life Insurance Company                      361,856.905   56.39%  *
700 Newport Center Drive
Newport Beach, California 92660
 
Pacific Life Foundation                                     93,665.140   14.60%
700 Newport Center Drive
Newport Beach, California 92660
 
California Race Track Association                           84,743.480   13.21%
P.O. Box 60014
Arcadia, California  91006-6014
 
IFTC as Custodian for                                       81,186.220   12.65%
John W. Barnum
5175 Tilden Street, N.W.
Washington, D.C. 20016-1961
 
PIMCO ENHANCED EQUITY FUND
</TABLE>     

                                      100
<PAGE>
 
<TABLE>    
<CAPTION>  
                                                         SHARES          PERCENTAGE OF
                                                         BENEFICIALLY    OUTSTANDING
                                                         OWNED           SHARES OWNED
                                                         -----           ------------
<S>                                                      <C>             <C>             
INSTITUTIONAL
Pacific Mutual Life Insurance Company                    1,470,504.372   51.15%  *
Employee's Retirement Plan Trust
700 Newport Center Drive
Newport Beach, California 92660
 
CMTA-GMPP & Allied Workers Pension                         468,000.811   16.28%
c/o Associated Third Party Administrator
1640 South Loop Road
Alameda, California  94502
 
BAC Local 19 Pension Trust Fund                            288,132.960   10.02%
777 Davis Street
San Francisco, California  94126-2500
 
Pacific Life Foundation                                    218,308.645    7.59%
700 Newport Center Drive
Newport Beach, California  92660
 
California Race Track Association                          196,975.687    6.85%
P.O. Box 60014
Arcadia, California  91006-6014
 
PIMCO EMERGING MARKETS FUND
 
INSTITUTIONAL
Pacific Mutual Life Insurance Company                      693,588.695   28.37%  *
Employee's Retirement Plan Trust
700 Newport Center Drive
Newport Beach, California 92660
</TABLE>      
 

                                      101
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                           SHARES          PERCENTAGE OF
                                                           BENEFICIALLY    OUTSTANDING
                                                           OWNED           SHARES OWNED
                                                           -----           ------------
<S>                                                        <C>             <C>             
Charles Schwab & Co., Inc. - Reinvest **                   601,893.520     24.62%
The Schwab Building                                                     
101 Montgomery Street                                                   
San Francisco, California 94104-4122                                    
                                                                        
Pacific Mutual Life Insurance Company                      575,190.664     23.53%
700 Newport Center Drive ,                                              
Newport Beach, California 92660                                         
                                                                        
Donaldson Lufkin & Jenrette**                              172,030.241      7.04%
Pershing Division                                                       
P.O. Box 2052                                                           
Jersey City, New Jersey 07303-2052                                      
                                                                        
CLASS A                                                                 
PaineWebber FBO                                             14,459.406     29.25%  *
Donald A. Gill as Trustee for                                           
Joseph W. Gill Irrev. Trust                                             
U/A DTD 11-08-94                                                        
9992 Mackey Circle                                                      
Overland Park, Kansas  66212-3458                                       
                                                                        
PaineWebber FBO                                              6,407.993     12.96%
Donald A. Gill CDN                                                      
For Timothy P. Gill                                                     
UTMA-KS                                                                 
9992 Mackey Circle                                                      
Overland Park, Kansas  66212-3458                                       
                                                                        
CLASS B                                                                 
RPSS Trust IRA FBO                                           3,103.734      8.19%
Gregory D. McDonald
15618 Gettysburg Drive
</TABLE>      
 

                                      102
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                         SHARES           PERCENTAGE OF
                                                         BENEFICIALLY     OUTSTANDING  
                                                         OWNED            SHARES OWNED 
                                                         -----            ------------ 
<S>                                                      <C>              <C>           
Tomball, Texas  77375-8609
 
PAF Sales Inc.                                               2,347.418       6.19%
Profit Sharing Plan                                                     
P.O. Box 307                                                            
Scarborough, New York  10510-0807                                       
                                                                        
CLASS C                                                                 
Merrill Lynch Pierce Fenner & Smith Inc.**                   6,368.000       5.98%
Attn:  Book Entry Department                                            
4800 Deer Lake Drive E., Fl. 3                                          
Jacksonville, Florida  32246-6484                                       
                                                                        
                                                                        
PIMCO INTERNATIONAL DEVELOPED FUND                                      
                                                                        
INSTITUTIONAL                                                           
Pacific Life Insurance Company                           1,536,160.091      19.67%
Employee's Retirement Plan Trust                                        
700 Newport Center Drive                                                
Newport Beach, California 92660                                         
                                                                        
Charles Schwab & Co., Inc. - Reinvest **                 1,285,367.297      16.46%
Attn:  Mutual Fund Operations                                           
The Schwab Building                                                     
101 Montgomery Street                                                   
San Francisco, California 94104-4122                                    
                                                                        
Wachovia Bank NA  as Trustee for the                     1,030,330.936      13.19%
Atlanta Gas Light Company Retirement Plan                               
301 N. Main Street - MC NC 31057                                        
Winston-Salem, North Carolina  27150                                    
                                                                        
Citibank, N.A., Trustee for the benefit of                 877,871.070      11.24%
Nissan Motor Mfg. Corp. U.S.A                                           
983 Nissan Drive                                                        
Smyrna, Tennessee  37167-4400                                           
                                                                        
Pacific Asset Management LLC                               667,985.181       8.55%
</TABLE>      

                                      103
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                         SHARES           PERCENTAGE OF
                                                         BENEFICIALLY     OUTSTANDING  
                                                         OWNED            SHARES OWNED 
                                                         -----            ------------ 
<S>                                                      <C>              <C>            
700 Newport Center Drive
Newport Beach, California 92660-6307
 
FTC & Co. Datalynx House Account **                        574,750.219       7.36%
P.O. Box 173736                                                            
Denver, Colorado  80217-3736                                               
                                                                           
CLASS A                                                                    
RPSS Trust IRA                                               9,354.005       8.23%
FBO William J. Murray                                                      
Duke University Medical Center                                             
P.O. Box 3094                                                              
Durham, North Carolina  27715-3094                                         
                                                                           
NFSC FEBO                                                    6,030.043       5.30%
Marianne H. Tinnin                                                         
316 Street S.W.                                                            
Albuquerque, New Mexico  87104                                             
                                                                           
CLASS B                                                                    
Merrill Lynch Pierce Fenner & Smith Inc.**                  16,994.454       7.74%
Attn:  Book Entry Department                                               
4800 Deer Lake Drive E., Fl. 3                                             
Jacksonville, Florida  32246-6484                                          
                                                                           
CLASS C                                                                    
Merrill Lynch Pierce Fenner & Smith Inc.**                  26,934.681       5.53%
Attn:  Book Entry Department
4800 Deer Lake Drive E., Fl. 3
Jacksonville, Florida  32246-6484
 
PIMCO BALANCED FUND
</TABLE>      
 

                                      104
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                         SHARES           PERCENTAGE OF
                                                         BENEFICIALLY     OUTSTANDING  
                                                         OWNED            SHARES OWNED 
                                                         -----            ------------ 
<S>                                                      <C>              <C>            
INSTITUTIONAL
Bank of New York Western Trust Co.                       1,157,519.069      36.04%  *
as Trustee for                                                            
Pacific Life Insurance Company R.I.S.P.                                   
700 S. Flower Street, 2nd Floor                                           
Los Angeles, California  90017                                            
                                                                          
Redlands Community Hospital Retirement Plan                633,227.992      19.72%
350 Terracina Boulevard                                                   
Redlands, California 92373-4850                                           
                                                                          
Dominguez Services Corporation                             626,419.614      19.50%
21718 South Alameda Street                                                
Long Beach, California  90810-0351                                        
                                                                          
Bank of America as Trustee for                             306,325.199       9.54%
The Music Center Operating Co.                                            
P.O. Box 2788                                                             
Los Angeles, California  90051-0788                                       
                                                                          
The Northern Trust Company as Trustee for                  258,686.657       8.05%
Ameron 401(k)                                                             
P.O. Box 92956                                                            
Chicago, Illinois  60675                                                  
                                                                          
CLASS B                                                                   
Merrill Lynch Pierce Fenner & Smith Inc.**                 282,197.382      32.21%  *
Attn:  Book Entry Department                                              
4800 Deer Lake Drive E., Fl. 3                                            
Jacksonville, Florida  32246-6484                                         
                                                                          
                                                                          
CLASS C                                                                   
Merrill Lynch Pierce Fenner & Smith Inc.**                 181,417.321      20.33%
Attn:  Book Entry Department
4800 Deer Lake Drive E., Fl. 3
Jacksonville, Florida  32246-6484
 
PIMCO TARGET FUND
</TABLE>      
 

                                      105
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                        SHARES            PERCENTAGE OF
                                                        BENEFICIALLY      OUTSTANDING  
                                                        OWNED             SHARES OWNED 
                                                        -----             ------------ 
<S>                                                     <C>               <C>            
CLASS A
Merrill Lynch Pierce Fenner & Smith Inc.**               1,570,692.183      19.26%
Attn:  Book Entry Department                                              
4800 Deer Lake Drive E., Fl. 3                                            
Jacksonville, Florida  32246-6484                                         
                                                                          
CLASS B                                                                   
Merrill Lynch Pierce Fenner & Smith Inc.**               1,645,188.299      35.00%  *
Attn:  Book Entry Department                                              
4800 Deer Lake Drive E., Fl. 3                                            
Jacksonville, Florida  32246-6484                                         
                                                                          
CLASS C                                                                   
Merrill Lynch Pierce Fenner & Smith Inc.**              15,361,161.139      26.37%  *
Attn:  Book Entry Department                                              
4800 Deer Lake Drive E., Fl. 3                                            
Jacksonville, Florida  32246-6484                                         
                                                                          
PIMCO PRECIOUS METALS FUND                                                
                                                                          
CLASS A                                                                   
Merrill Lynch Pierce Fenner & Smith Inc.**                  82,867.845      17.07%
Attn:  Book Entry Department                                              
4800 Deer Lake Drive E., Fl. 3                                            
Jacksonville, Florida  32246-6484                                         
                                                                          
PaineWebber FBO                                             41,420.457       8.53%
Victor G. Warren Trust                                                    
UAD 071493 For the Victor G. Warren Trust                                 
724 South Garfield                                                        
Hinsdale, Illinois  60521-4425                                            
                                                                          
CLASS C                                                                   
Merrill Lynch Pierce Fenner & Smith Inc.**                 356,017.881      12.86%
Attn:  Book Entry Department
4800 Deer Lake Drive E., Fl. 3
Jacksonville, Florida  32246-6484
</TABLE>      
 

                                      106
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                         SHARES                  PERCENTAGE OF 
                                                         BENEFICIALLY            OUTSTANDING   
                                                         OWNED                   SHARES OWNED 
                                                         -----                   ------------ 
<S>                                                      <C>                     <C>             
PIMCO RENAISSANCE FUND
 
INSTITUTIONAL CLASS
Seymour S. Fiskind                                          42,768.781               90.62%  *
c/o Columbus Circle Investors                                             
Metro Center                                                              
One Station Place, 8th Floor                                              
Stamford, Connecticut  06902                                              
                                                                          
Donaldson, Lufkin & Jenrette **                              4,427.330                9.38%
P. O. Box 2052                                                            
Jersey City, New Jersey  07303-2052                                       
                                                                          
ADMINISTRATIVE                                                            
PIMCO Advisors L.P.                                          6,506.181           111100.00%  *
800 Newport Center Drive                                                  
Newport Beach, California  92660                                          
                                                                          
CLASS A                                                                   
Merrill Lynch Pierce Fenner & Smith Inc.**                 528,740.476               11.16%
Attn:  Book Entry Department                                              
4800 Deer Lake Drive E., Fl. 3                                            
Jacksonville, Florida  32246-6484                                         
                                                                          
CLASS B                                                                   
Merrill Lynch Pierce Fenner & Smith Inc.**               1,336,375.697               21.39%
Attn:  Book Entry Department                                              
4800 Deer Lake Drive E., Fl. 3                                            
Jacksonville, Florida  32246-6484                                         
                                                                          
CLASS C                                                                   
Merrill Lynch Pierce Fenner & Smith Inc.**               3,883,672.129               15.88%
Attn:  Book Entry Department                                              
4800 Deer Lake Drive E., Fl. 3                                            
Jacksonville, Florida  32246-6484                                         
</TABLE>      

                                      107
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                         SHARES           PERCENTAGE OF 
                                                         BENEFICIALLY     OUTSTANDING   
                                                         OWNED            SHARES OWNED 
                                                         -----            ------------ 
<S>                                                      <C>              <C>             
CLASS D                                                                   
PIMCO Advisors L.P.                                          5,265.929       84.50%  *
Attn:  Vinh Nguyen                                                         
800 Newport Center Drive                                                   
Newport Beach, California  92660                                           
                                                                           
Charles Schwab & Co., Inc. - Reinvest.**                       965.580       15.49%
The Schwab Building
101 Montgomery Street
San Francisco, California 94104-4122
 
 
PIMCO GROWTH FUND
 
CLASS A
Merrill Lynch Pierce Fenner & Smith Inc.**                 371,949.799        7.14%
Attn:  Book Entry Department                                           
4800 Deer Lake Drive E., Fl. 3                                         
Jacksonville, Florida  32246-6484                                      
                                                                       
CLASS B                                                                
Merrill Lynch Pierce Fenner & Smith Inc.**                 773,112.190       27.59%  *
Attn:  Book Entry Department                                           
4800 Deer Lake Drive E., Fl. 3                                         
Jacksonville, Florida  32246-6484                                      
                                                                       
CLASS C                                                                
Merrill Lynch Pierce Fenner & Smith Inc.**               7,703,857.710       13.00%
Attn:  Book Entry Department                                           
4800 Deer Lake Drive E., Fl. 3                                         
Jacksonville, Florida  32246-6484                                      
                                                                       
PIMCO OPPORTUNITY FUND                                                 
                                                                       
CLASS A                                                                
Merrill Lynch Pierce Fenner & Smith Inc.**               1,093,682.070       22.85%
Attn:  Book Entry Department                                           
4800 Deer Lake Drive E., Fl. 3                                         
</TABLE>      

                                      108
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                         SHARES           PERCENTAGE OF 
                                                         BENEFICIALLY     OUTSTANDING   
                                                         OWNED            SHARES OWNED 
                                                         -----            ------------ 
<S>                                                      <C>              <C>             
Jacksonville, Florida  32246-6484                                      
                                                                       
American Express Trust Company                             318,681.258        6.65%
FBO WESCO Distribution Inc.                                            
Retirement Savings Plan                                                
733 Marquette Avenue                                                   
Minneapolis, Minnesota  55402-2309                                     
                                                                       
American Express Trust Company                             318,681.258        6.65%
FBO WESCO Distribution Inc.                                            
Retirement Savings Plan                                                
733 Marquette Avenue                                                   
Minneapolis, Minnesota  55402-2309                                     
                                                                       
CLASS C                                                                
Merrill Lynch Pierce Fenner & Smith Inc.**               3,948,381.435       25.91%  *
Attn:  Book Entry Department                                           
4800 Deer Lake Drive E., Fl. 3                                         
Jacksonville, Florida  32246-6484                                      
                                                                       
                                                                       
PIMCO INNOVATION FUND                                                  
                                                                       
CLASS A                                                                
Merrill Lynch Pierce Fenner & Smith Inc.**                 422,145.610       12.08%
Attn:  Book Entry Department                                           
4800 Deer Lake Drive E., Fl. 3                                         
Jacksonville, Florida  32246-6484                                      
                                                                       
CLASS B                                                                
Merrill Lynch Pierce Fenner & Smith Inc.**                 849,742.813       21.97%
Attn:  Book Entry Department                                           
4800 Deer Lake Drive E., Fl. 3                                         
Jacksonville, Florida  32246-6484                                      
                                                                       
CLASS C                                                                
Merrill Lynch Pierce Fenner & Smith Inc.**               1,401,620.113       14.53%
</TABLE>      

                                      109
<PAGE>
 
<TABLE>    
<CAPTION> 
                                                         SHARES           PERCENTAGE OF 
                                                         BENEFICIALLY     OUTSTANDING   
                                                         OWNED            SHARES OWNED 
                                                         -----            ------------ 
<S>                                                      <C>              <C>             
Attn:  Book Entry Department                                           
4800 Deer Lake Drive E., Fl. 3                                         
Jacksonville, Florida  32246-6484                                      
                                                                       
CLASS D                                                                
Charles Schwab & Co., Inc. - Reinvest.**                    67,920.558       99.99%  *
The Schwab Building                                                    
101 Montgomery Street                                                  
San Francisco, California 94104-4122                                   
                                                                       
PIMCO INTERNATIONAL FUND                                               
                                                                       
INSTITUTIONAL                                                          
90/10 Portfolio                                              3,628.684       56.80%  *
PIMCO Funds Asset Allocation Series                                    
800 Newport Center Drive                                               
Newport Beach, California  92660                                       
                                                                       
60/40 Portfolio                                              2,006.396       31.40%  *
PIMCO Funds Asset Allocation Series                                    
800 Newport Center Drive                                               
Newport Beach, California  92660                                       
                                                                       
30/70 Portfolio                                                753.832       11.80%
PIMCO Funds Asset Allocation Series                                    
800 Newport Center Drive                                               
Newport Beach, California  92660                                       
                                                                       
ADMINISTRATIVE                                                         
                                                                       
PIMCO Advisors L.P.                                          9,551.098       43.77%  *
Attn:  R. M. Fitzgerald                                                
800 Newport Center Drive                                               
Newport Beach, California  92660                                       
</TABLE>      
                                                                       

                                      110
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                         SHARES           PERCENTAGE OF 
                                                         BENEFICIALLY     OUTSTANDING   
                                                         OWNED            SHARES OWNED 
                                                         -----            ------------ 
<S>                                                      <C>              <C>             
CLASS A                                                                
Merrill Lynch Pierce Fenner & Smith Inc.**                  95,289.179       12.38%
Attn:  Book Entry Department                                           
4800 Deer Lake Drive E., Fl. 3                                         
Jacksonville, Florida  32246-6484                                      
                                                                       
PaineWebber FBO                                             62,801.791        8.16%
Bakerrubine LLC                                                        
575 Madison Avenue, 10th Floor                                         
New York, New York  10022-2511                                         
                                                                       
CLASS B                                                                
Merrill Lynch Pierce Fenner & Smith Inc.**                 135,489.602       20.38%
Attn:  Book Entry Department                                           
4800 Deer Lake Drive E., Fl. 3                                         
Jacksonville, Florida  32246-6484                                      
                                                                       
CLASS C                                                                
Merrill Lynch Pierce Fenner & Smith Inc.**               1,325,408.448       14.37%
Attn:  Book Entry Department                                           
4800 Deer Lake Drive E., Fl. 3                                         
Jacksonville, Florida  32246-6484                                      
                                                                       
PIMCO INTERNATIONAL GROWTH FUND                                        
                                                                       
INSTITUTIONAL                                                          
Pacific Asset Management LLC                               500,000.000       99.21%  *
700 Newport Center Drive                                               
Newport Beach, California 92660-6307                                   
                                                                       
PIMCO STRUCTURED EMERGING MARKETS FUND                                 
                                                                       
INSTITUTIONAL                                                          
Rhode Island Foundation                                    861,818.340       24.19%
Attn:  Robert Rosendale                                                
150 Royall Street                                                      
Canton, Massachusetts  02021                                           
                                                                       
Berklee College of Music, Inc.                             507,144.599       14.23%
</TABLE>      

                                      111
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                         SHARES           PERCENTAGE OF 
                                                         BENEFICIALLY     OUTSTANDING   
                                                         OWNED            SHARES OWNED 
                                                         -----            ------------ 
<S>                                                      <C>              <C>             
1140 Boylston Street                                                   
Boston, Massachusetts  02215-3693                                      
                                                                       
Hartford Foundation                                        325,959.222        9.15%
159 E. Main Street                                                     
Rochester, New York  14638                                             
                                                                       
Munsen-Williams-Proctor Institute                          286,820.745        8.05%
Attn:  Anthony Spiridigloizzi                                          
310 Genesee Street                                                     
Utica, New York  13502                                                 
                                                                       
The Reeves Foundation                                      258,740.474        7.26%
115 Summit Avenue                                                     
Summit, New Jersey  07901                                              
                                                                       
Deseret Mutual Retiree Med. & Life Pl. Tr.                 231,885.531        6.51%
c/o Doug Burton                                                        
60 East South Temple Street                                            
Salt Lake City, Utah  84147                                            
                                                                       
Brockton Health Corp. Endowment                            200,487.790        5.63%
Attn:  Steven Connolly                                                 
680 Centre Street                                                      
Brockton, Massachusetts  02402-3395                                    
                                                                       
PIMCO TAX-EFFICIENT EQUITY FUND                                        
                                                                       
ADMINISTRATIVE                                                         
PIMCO Advisors L.P.                                         11,560.694      100.00%  *
Attn:  R. M. Fitzgerald                                                
800 Newport Center Drive                                               
Newport Beach, California                                              
                                                                       
CLASS A                                                                
PIMCO Advisors L.P.                                         75,000.000       45.24%  *
Attn:  Vinh Nguyen
800 Newport Center Drive
</TABLE>      

                                      112
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                            Shares              Percentage of
                                                            Beneficially        Outstanding
                                                            Owned               Shares Owned
                                                            -----               -------------
<S>                                                         <C>                 <C> 
Newport Beach, California  92660
 
Merrill Lynch Pierce Fenner & Smith Inc.**                  18,425.393              11.11%      
Attn:  Book Entry Department                                                                  
4800 Deer Lake Drive E., Fl. 3                                                                
Jacksonville, Florida  32246-6484                                                             
                                                                                              
Dain Rauscher Inc. FBO                                      11,235.955               6.77%    
Michael G. King and Elizabeth W. King                                                         
Long Term Account JT TEN WROS                                                                 
14800 164th Place North East                                                                  
Woodinville, Washington 98072                                                                 
                                                                                              
CLASS B                                                                                       
PIMCO Advisors L.P.                                         75,000.000              47.47%  * 
Attn:  Vinh Nguyen                                                                            
800 Newport Center Drive                                                                      
Newport Beach, California  92660                                                              
                                                                                              
Merrill Lynch Pierce Fenner & Smith Inc.**                  27,530.866              17.42%    
Attn:  Book Entry Department                                                                  
4800 Deer Lake Drive E., Fl. 3                                                                
Jacksonville, Florida  32246-6484                                                             
                                                                                              
PaineWebber FBO                                             10,706.638               6.77%    
Evan Kaplan & Elissa Kaplan  JTWROS                                                           
1850 Muttontown Road                                                                          
Muttontown, New York  11791-9652                                                              
                                                                                              
Robert T. Wright and Catherine D. Wright                     9,060.023               5.73%    
JT TEN WROS NOT TC                                                                            
115 Mayer Street                                                                              
Redding, Pennsylvania  19606-1620                                                             
                                                                                              
PaineWebber FBO                                              7,952.231               5.03%     
Patricia M. Fayad
TTEE Patricia M. Fayad Living Trust
UAD 52297
18597 Manorwood South
</TABLE>      

                                      113
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                            Shares              Percentage of
                                                            Beneficially        Outstanding
                                                            Owned               Shares Owned
                                                            -----               -------------
<S>                                                         <C>                 <C> 
Clinton Township, Michigan  48038-4817
 
CLASS C
PIMCO Advisors L.P.                                         75,000.000              36.06%  *  
Attn:  Vinh Nguyen                                                                           
800 Newport Center Drive                                                                     
Newport Beach, California  92660                                                             
                                                                                             
Merrill Lynch Pierce Fenner & Smith Inc.**                  18,205.540               8.75%   
Attn:  Book Entry Department                                                                 
4800 Deer Lake Drive E., Fl. 3                                                               
Jacksonville, Florida  32246-6484                                                            
                                                                                             
David A. Lamando and Diana J. Lamando                       14,314.899               6.88%   
JT TEN WROS NOT TC                                                                           
7 Peekskill Hollow turnpike                                                                  
Putnam Valley, New York  10579-3222                                                          
                                                                                             
PaineWebber FBO                                             11,299.435               5.43%   
Leonard Pienik TTEE                                                                          
FBO Greg Gibson                                                                              
UAD 3-15-73 Trust I                                                                          
58 Lyons Place                                                                               
Basking Ridge, New Jersey  07920-1914                                                        
                                                                                             
CLASS D                                                                                      
PIMCO Advisors L.P.                                         75,000.000             100.00%  * 
Attn:  Vinh Nguyen
800 Newport Center Drive
Newport Beach, California  92660
 
PIMCO TAX-EFFICIENT STRUCTURED EMERGING MARKETS FUND
 
INSTITUTIONAL
</TABLE>      

                                      114
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                           Shares              Percentage of
                                                           Beneficially        Outstanding
                                                           Owned               Shares Owned
                                                           -----               -------------
<S>                                                        <C>                 <C> 
Alscott Investments, LLC                                   988,077.548             21.69%    
501 Baybrook Court                                                                           
Boise, Idaho  83706                                                                          
                                                                                             
Verb & Company (Weyerhaeuser)                              805,503.178             17.68%    
4380 S.W. Macadam, Suite 450                                                                 
Portland, Oregon  97201                                                                      
                                                                                             
Waycrosse, Inc./International Equity Fund II               620,642.769             13.62%    
P. O. Box 9300, MS 28                                                                        
Minneapolis, Minnesota  55440-9300                                                           
                                                                                             
Ruby Trust                                                 584,956.501             12.84%    
499 Park Avenue                                                                              
New York, New York  10022                                                                    
                                                                                             
Topaz Trust                                                346,011.851              7.59%    
499 Park Avenue                                                                              
New York, New York  10022                                                                    
                                                                                             
Alscott Investments, LLC                                   262,948.208              5.77%    
501 Baybrook Court                                                                           
Boise, Idaho  83706                                                                          
                                                                                             
30/70 PORTFOLIO                                                                              
                                                                                             
CLASS A                                                                                      
PIMCO Advisors L.P.                                          3,333.333             95.04%  * 
Attn:  Vinh Nguyen                                                                           
800 Newport Center Drive                                                                     
Newport Beach, California  92660                                                             
                                                                                             
                                                                                             
CLASS B                                                                                      
PIMCO Advisors L.P.                                          3,333.333             88.71%  *  
Attn:  Vinh Nguyen
800 Newport Center Drive
Newport Beach, California  92660
</TABLE>      

                                      115
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                               Shares              Percentage of
                                                               Beneficially        Outstanding
                                                               Owned               Shares Owned
                                                               -----               -------------
<S>                                                            <C>                 <C> 
Reva C. David                                                  196.625                  5.23%    
P.O. Box 154                                                                                     
Lenora, Kansas  67645-0154                                                                       
                                                                                                 
CLASS C                                                                                          
PIMCO Advisors L.P.                                          3,333.334                 73.74%  * 
Attn:  Vinh Nguyen                                                                               
800 Newport Center Drive                                                                         
Newport Beach, California  92660                                                                 
                                                                                                 
Barbara Van Driest                                             471.386                 10.42%    
10771 Girdled Road                                                                               
Concord, Ohio  44077-8801                                                                        
                                                                                                 
RPSS Trust Rollover IRA                                        393.326                  8.70%    
Richard E. Klawitter                                                                             
21897 Spirit Lake Road West                                                                      
Frederic, Wisconsin  54837-9642                                                                  
                                                                                                 
Lori A. Mears and Dale Mears                                   322.002                  7.12%    
JT TEN WROS NOT TC                                                                               
150 Charles Avenue                                                                               
Amherst, Ohio  44001-2076                                                                        
                                                                                                 
90/10 PORTFOLIO                                                                                  
                                                                                                 
CLASS A                                                                                          
PIMCO Advisors L.P.                                          3,333.333                 85.66%  * 
Attn:  Vinh Nguyen                                                                               
800 Newport Center Drive                                                                         
Newport Beach, California  92660                                                                 
                                                                                                 
Gerald G. Dorff Custodian                                      290.530                  7.46%     
FBO Vanessa C. Dorff
UNIF TRANS MIN ACT WI
3220 Venus Avenue
Eau Claire, Wisconsin  54703-0921
 
CLASS B
</TABLE>      

                                      116
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                             Shares              Percentage of
                                                             Beneficially        Outstanding
                                                             Owned               Shares Owned
                                                             -----               -------------
<S>                                                          <C>                 <C> 
PIMCO Advisors L.P.                                          3,333.333               64.94%  * 
Attn:  Vinh Nguyen                                                                             
800 Newport Center Drive                                                                       
Newport Beach, California  92660                                                               
                                                                                               
RPSS Trust Rollover IRA                                        316.270                6.16%    
FBO James A. Harris                                                                            
2508 Poinsetta Drive                                                                           
White Oak, Pennsylvania  15131-1928                                                            
                                                                                               
RPSS Trust Rollover IRA                                        271.437                5.28%    
FBO Kathy S. Giuliano                                                                          
15 Sunshine Court                                                                              
Bloomington, Illinois  61704-2342                                                              
                                                                                               
CLASS C                                                                                        
PIMCO Advisors L.P.                                          3,333.334               20.27%    
Attn:  Vinh Nguyen                                                                             
800 Newport Center Drive                                                                       
Newport Beach, California  92660                                                               
                                                                                               
June P. Knoblich                                             1,036.269                6.30%    
18332 Nassey Drive                                                                             
Castro Valley, California  94546-2267                                                          
                                                                                               
60/40 PORTFOLIO                                                                                
                                                                                               
CLASS A                                                                                        
PIMCO Advisors L.P.                                          3,333.333               55.30%  * 
Attn:  Vinh Nguyen                                                                             
800 Newport Center Drive                                                                       
Newport Beach, California  92660                                                               
                                                                                               
RPSS Trust Rollover IRA                                        711.309               11.80%    
FBO Joyce E. Olsen                                                                             
708 Montana Avenue                                                                             
Missoula, Montana  59802-5525                                                                  
                                                                                               
RPSS Trust Rollover IRA                                        705.945               11.71%     
</TABLE>      

                                      117
<PAGE>
 
<TABLE>     
<CAPTION> 
                                                             Shares              Percentage of
                                                             Beneficially        Outstanding
                                                             Owned               Shares Owned
                                                             -----               -------------
<S>                                                          <C>                 <C> 
FBO Bernard L. Olsen
708 Montana Avenue
Missoula, Montana  59802-5525
 
CLASS B
PIMCO Advisors L.P.                                          3,333.333                 59.49%  *  
Attn:  Vinh Nguyen                                                                                
800 Newport Center Drive                                                                          
Newport Beach, California  92660                                                                  
                                                                                                  
David M. Nemeti and Judith A. Nemeti                           635.041                 11.33%     
JT TEN WROS NOT TC                                                                                
278 Adams Lane                                                                                    
Rayland, Ohio  43943-7835                                                                         
                                                                                                  
CLASS C                                                                                           
PIMCO Advisors L.P.                                          3,333.334                 67.50%  *  
Attn:  Vinh Nguyen                                                                                
800 Newport Center Drive                                                                          
Newport Beach, California  92660                                                                  
                                                                                                  
RPSS Trust IRA                                                 393.688                  7.97%     
FBO Edward A. Fiorella                                                                            
9480 Bayfront Drive                                                                               
Norfolk, Virginia  23518-6308                                                                     
                                                                                                  
RPSS Trust IRA                                                 258.399                  5.23%     
Randall L. Damm                                                                                   
510 Oak Street                                                                                    
Shoshoni, Wyoming  82649                                                                          
                                                                                                  
Edward A. Fiorella                                             254.888                  5.16%      
FBO Edward A. Fiorella
9480 Bayfront Drive
Norfolk, Virginia  23518-6308
</TABLE>     

_____________________________________________

*  Entity owned 25% or more of the outstanding shares of beneficial interest of
the Fund, and therefore may be presumed to "control" the Fund, as that term is
defined in the 1940 Act.

                                      118
<PAGE>
 
**  Shares are believed to be held only as nominee.

CUSTODIAN
    
  Investors Fiduciary Trust Company ("IFTC"), 801 Pennsylvania, Kansas City,
Missouri 64105, serves as custodian for assets of all Funds and Portfolios.
Pursuant to separate sub-custody agreements between IFTC and The Chase Manhattan
Bank, N.A. ("Chase") and IFTC and State Street Bank and Trust Company ("State
Street"), Chase and State Street serve as subcustodians of the Trust for the
custody of the foreign securities acquired by those Funds that invest in foreign
securities.  Under the agreements, Chase and State Street may hold foreign
securities at their principal offices and their branches, and subject to
approval by the Board of Trustees, at a foreign branch of a qualified U.S. bank,
with an eligible foreign subcustodian, or with an eligible foreign securities
depository.     

  Pursuant to rules or other exemptions under the 1940 Act, the Trust may
maintain foreign securities and cash in the custody of certain eligible foreign
banks and securities depositories.  Selection of these foreign custodial
institutions is currently made by the Board of Trustees following a
consideration of a number of factors, including (but not limited to) the
reliability and financial stability of the institution; the ability of the
institution to perform capably custodial services for the Trust; the reputation
of the institution in its national market; the political and economic stability
of the country in which the institution is located; and further risks of
potential nationalization or expropriation of Trust assets, although the
Trustees reserve the right to delegate their selection responsibilities in light
of recent amendments to Rule 17f-5 under the 1940 Act, in which case the factors
for consideration would differ from those referenced above.  Currently, the
Board of Trustees reviews annually the continuance of foreign custodial
arrangements for the Trust, but reserves the right to discontinue this practice
as permitted by the recent amendments to Rule 17f-5.  No assurance can be given
that the Trustees' appraisal of the risks in connection with foreign custodial
arrangements will always be correct or that expropriation, nationalization,
freezes, or confiscation of assets that would impact assets of the Funds will
not occur, and shareholders bear the risk of losses arising from these or other
events.

INDEPENDENT ACCOUNTANTS
    
  PricewaterhouseCoopers LLP, 1055 Broadway, Kansas City, Missouri 64105, serves
as the independent public accountants for the Funds and Portfolios.
PricewaterhouseCoopers LLP provides audit services, accounting assistance, and
consultation in connection with SEC filings.     

REGISTRATION STATEMENT

  This Statement of Additional Information and the Prospectuses do not contain
all of the information included in the Trust's registration statements filed
with the SEC under the 1933 Act with respect to the securities offered hereby,
certain portions of which have been omitted pursuant to the rules and
regulations of the SEC.  The registration statements, including the exhibits
filed therewith, may be examined at the offices of the SEC in Washington, D.C.

  Statements contained herein and in the Prospectuses as to the contents of any
contract or other documents referred to are not necessarily complete, and, in
each instance, reference is made to the copy of such contract or other documents
filed as an exhibit to the relevant registration statement, each such statement
being qualified in all respects by such reference.

FINANCIAL STATEMENTS
    
  Audited financial statements for the Funds, as of June 30, 1998, for the
fiscal year then ended, including notes thereto, and the reports of
PricewaterhouseCoopers LLP thereon, each dated August 17, 1998, are incorporated
by reference from the Trust's three June 30, 1998 Annual Reports.  One Annual
Report (the      

                                      119
<PAGE>
 
    
"Retail Report") corresponds to the Class A, B and C Prospectus, another (the
"Institutional Report") corresponds to the Institutional Prospectus, and another
(the "Class D Report") corresponds to the Class D Prospectus. The Trust's 1998
Annual Reports are on file electronically with the SEC (Retail Report - filed on
September 8, 1998, Accession No. 0001017062-98-001959; Institutional Report -
filed on September 4, 1998, Accession No. 00010107062-98-001952; Class D 
Report--filed on September 8, 1998, Accession No. 0001017062-98-001961).    
    
  The Portfolios were not operational during these reporting periods.     

[Note: Unaudited Financial Information for the Funds and Portfolios through 
December 31, 1998 to be incorporated by reference in a post-effective amendment 
filed prior to the effective date of this Amendment.]


                                      120
<PAGE>
 
                                   APPENDIX

                       DESCRIPTION OF SECURITIES RATINGS

     Certain of the Funds make use of average portfolio credit quality standards
to assist institutional investors whose own investment guidelines limit their
investments accordingly. In determining a Fund's overall dollar-weighted average
quality, unrated securities are treated as if rated, based on the Adviser's or
Portfolio Manager's view of their comparability to rated securities. A Fund's
use of average quality criteria is intended to be a guide for those investors
whose investment guidelines require that assets be invested according to
comparable criteria. Reference to an overall average quality rating for a Fund
does not mean that all securities held by the Fund will be rated in that
category or higher. A Fund's investments may range in quality from securities
rated in the lowest category in which the Fund is permitted to invest to
securities rated in the highest category (as rated by Moody's or S&P or, if
unrated, determined by the Adviser or a Portfolio Manager to be of comparable
quality). The percentage of a Fund's assets invested in securities in a
particular rating category will vary. Following is a description of Moody's and
S&P's ratings applicable to fixed income securities.

MOODY'S INVESTORS SERVICE, INC.

     CORPORATE AND MUNICIPAL BOND RATINGS

     Aaa:  Bonds which are rated Aaa are judged to be of the best quality.  They
carry the smallest degree of investment risk and are generally referred to as
"gilt edge."  Interest payments are protected by a large or by an exceptionally
stable margin and principal is secure.  While the various protective elements
are likely to change, such changes as can be visualized are most unlikely to
impair the fundamentally strong position of such issues.

     Aa:  Bonds which are rated Aa are judged to be of high quality by all
standards.  Together with the Aaa group they comprise what are generally known
as high-grade bonds.  They are rated lower than the best bonds because margins
of protection may not be as large as in Aaa securities or fluctuation of
protective elements may be of greater amplitude or there may be other elements
present that make the long-term risks appear somewhat larger than with Aaa
securities.

     A:  Bonds which are rated A possess many favorable investment attributes
and are to be considered as upper-medium-grade obligations. Factors giving
security to principal and interest are considered adequate but elements may be
present that suggest a susceptibility to impairment sometime in the future.

     Baa:  Bonds which are rated Baa are considered as medium-grade obligations
(i.e., they are neither highly protected nor poorly secured).  Interest payments
and principal security appear adequate for the present but certain protective
elements may be lacking or may be characteristically unreliable over any great
length of time.  Such bonds lack outstanding investment characteristics and in
fact have speculative characteristics as well.

     Ba:  Bonds which are rated Ba are judged to have speculative elements;
their future cannot be considered as well-assured. Often the protection of
interest and principal payments may be very moderate and thereby not well
safeguarded during both good and bad times over the future. Uncertainty of
position characterizes bonds in this class.

     B:  Bonds which are rated B generally lack characteristics of a desirable
investment. Assurance of interest and principal payments or of maintenance of
other terms of the contract over any long period of time may be small.

     Caa:  Bonds which are rated Caa are of poor standing. Such issues may be in
default or there may be present elements of danger with respect to principal or
interest.

     Ca:  Bonds which are rated Ca represent obligations which are speculative
in a high degree. Such issues are often in default or have other marked
shortcomings.

                                      A-1
<PAGE>
 
     C:  Bonds which are rated C are the lowest rated class of bonds and issues
so rated can be regarded as having extremely poor prospects of ever attaining
any real investment standing.

     Moody's applies numerical modifiers, 1, 2, and 3 in each generic rating
classified from Aa through B in its corporate bond rating system.  The modifier
1 indicates that the security ranks in the higher end of its generic rating
category; the modifier 2 indicates a mid-range ranking; and the modifier 3
indicates that the issue ranks in the lower end of its generic rating category.

     CORPORATE SHORT-TERM DEBT RATINGS

     Moody's short-term debt ratings are opinions of the ability of issuers to
repay punctually senior debt obligations which have an original maturity not
exceeding one year.  Obligations relying upon support mechanisms such as letters
of credit and bonds of indemnity are excluded unless explicitly rated.

     Moody's employs the following three designations, all judged to be
investment grade, to indicate the relative repayment ability of rated issuers:

     PRIME-1:  Issuers rated Prime-1 (or supporting institutions) have a
superior ability for repayment of senior short-term debt obligations. Prime-1
repayment ability will often be evidenced by many of the following
characteristics: leading market positions in well-established industries; high
rates of return on funds employed; conservative capitalization structure with
moderate reliance on debt and ample asset protection; broad margins in earnings
coverage of fixed financial charges and high internal cash generation; and well-
established access to a range of financial markets and assured sources of
alternate liquidity.

     PRIME-2:  Issuers rated Prime-2 (or supporting institutions) have a strong
ability for repayment of senior short-term debt obligations.  This will normally
be evidenced by many of the characteristics cited above but to a lesser degree.
Earnings trends and coverage ratios, while sound, may be more subject to
variation.  Capitalization characteristics, while still appropriate, may be more
affected by external conditions.  Ample alternate liquidity is maintained.

     PRIME-3:  Issuers rated Prime-3 (or supporting institutions) have an
acceptable ability for repayment of senior short-term obligations.  The effect
of industry characteristics and market compositions may be more pronounced.
Variability in earnings and profitability may result in changes in the level of
debt protection measurements and may require relatively high financial leverage.
Adequate alternate liquidity is maintained.

     NOT PRIME:  Issuers rated Not Prime do not fall within any of the Prime
rating categories.
    
STANDARD & POOR'S RATINGS SERVICES     

     CORPORATE AND MUNICIPAL BOND RATINGS

     Investment Grade

     AAA:  Debt rated AAA has the highest rating assigned by Standard & Poor's.
Capacity to pay interest and repay principal is extremely strong.

     AA:  Debt rated AA has a very strong capacity to pay interest and repay
principal and differs from the highest rated issues only in small degree.

     A:  Debt rated A has a strong capacity to pay interest and repay principal
although it is somewhat more susceptible to the adverse effects of changes in
circumstances and economic conditions than debt in higher rated categories.

                                      A-2
<PAGE>
 
     BBB:  Debt rated BBB is regarded as having an adequate capacity to pay
interest and repay principal.  Whereas it normally exhibits adequate protection
parameters, adverse economic conditions, or changing circumstances are more
likely to lead to a weakened capacity to pay interest and repay principal for
debt in this category than in higher-rated categories.

     Speculative Grade

     Debt rated BB, B, CCC, CC, and C is regarded as having predominantly
speculative characteristics with respect to capacity to pay interest and repay
principal.  BB indicates the least degree of speculation and C the highest.
While such debt will likely have some quality and protective characteristics,
these are outweighed by large uncertainties or major exposures to adverse
conditions.

     BB:  Debt rated BB has less near-term vulnerability to default than other
speculative issues. However, it faces major ongoing uncertainties or exposure to
adverse business, financial, or economic conditions which could lead to
inadequate capacity to meet timely interest and principal payments. The BB
rating category is also used for debt subordinated to senior debt that is
assigned an actual or implied BBB- rating.

     B:  Debt rated B has a greater vulnerability to default but currently has
the capacity to meet interest payments and principal repayments. Adverse
business, financial, or economic conditions will likely impair capacity or
willingness to pay interest and repay principal. The B rating category is also
used for debt subordinated to senior debt that is assigned an actual or implied
BB or BB-rating.

     CCC:  Debt rated CCC has a currently identifiable vulnerability to default
and is dependent upon favorable business, financial, and economic conditions to
meet timely payment of interest and repayment of principal. In the event of
adverse business, financial or economic conditions, it is not likely to have the
capacity to pay interest and repay principal. The CCC rating category is also
used for debt subordinated to senior debt that is assigned an actual or implied
B or B- rating.

     CC:  The rating CC is typically applied to debt subordinated to senior debt
that is assigned an actual or implied CCC rating.

     C:  The rating C is typically applied to debt subordinated to senior debt
that is assigned an actual or implied CCC- debt rating. The C rating may be used
to cover a situation where a bankruptcy petition has been filed, but debt
service payments are continued.

     CI:  The rating CI is reserved for income bonds on which no interest is
being paid.

     D:  Debt rated D is in payment default.  The D rating category is used when
interest payments or principal payments are not made on the date due even if the
applicable grace period has not expired, unless S&P believes that such payments
will be made during such grace period.  The D rating will also be used upon the
filing of a bankruptcy petition if debt service payments are jeopardized.

     Plus (+) or Minus (-):  The ratings from AA to CCC may be modified by the
addition of a plus or minus sign to show relative standing within the major
rating categories.

     Provisional ratings:  The letter "p" indicates that the rating is
provisional. A provisional rating assumes the successful completion of the
project being financed by the debt being rated and indicates that payment of
debt service requirements is largely or entirely dependent upon the successful
and timely completion of the project. This rating, however, while addressing
credit quality subsequent to completion of the project, makes no comment on the
likelihood of, or the risk of default upon failure of, such completion. The
investor should exercise his own judgment with respect to such likelihood and
risk.

                                      A-3
<PAGE>
 
     r:  The "r" is attached to highlight derivative, hybrid, and certain other
obligations that S&P believes may experience high volatility or high variability
in expected returns due to non-credit risks. Examples of such obligations are:
securities whose principal or interest return is indexed to equities,
commodities, or currencies; certain swaps and options; and interest only and
principal only mortgage securities.

     The absence of an "r" symbol should not be taken as an indication that an
obligation will exhibit no volatility or variability in total return.

     N.R.:  Not rated.

     Debt obligations of issuers outside the United States and its territories
are rated on the same basis as domestic corporate and municipal issues. The
ratings measure the creditworthiness of the obligor but do not take into account
currency exchange and related uncertainties.

     COMMERCIAL PAPER RATING DEFINITIONS

     A Standard & Poor's commercial paper rating is a current assessment of the
likelihood of timely payment of debt having an original maturity of no more than
365 days.  Ratings are graded into several categories, ranging from A for the
highest quality obligations to D for the lowest.  These categories are as
follows:

     A-1:  This highest category indicates that the degree of safety regarding
timely payment is strong.  Those issues determined to possess extremely strong
safety characteristics are denoted with a plus sign (+) designation.

     A-2:  Capacity for timely payment on issues with this designation is
satisfactory.  However, the relative degree of safety is not as high as for
issues designated A-1.

     A-3:  Issues carrying this designation have adequate capacity for timely
payment.  They are, however, more vulnerable to the adverse effects of changes
in circumstances than obligations carrying the higher designations.

     B:  Issues rated B are regarded as having only speculative capacity for
timely payment.

     C:  This rating is assigned to short-term debt obligations with a doubtful
capacity for payment.

     D:  Debt rated D is in payment default.  The D rating category is used when
interest payments or principal payments are not made on the date due, even if
the applicable grace period has not expired, unless S&P believes that such
payments will be made during such grace period.

     A commercial paper rating is not a recommendation to purchase, sell or hold
a security inasmuch as it does not comment as to market price or suitability for
a particular investor. The ratings are based on current information furnished to
Standard & Poor's by the issuer or obtained from other sources it considers
reliable. Standard & Poor's does not perform an audit in connection with any
rating and may, on occasion, rely on unaudited financial information. The
ratings may be changed, suspended, or withdrawn as a result of changes in or
unavailability of such information.

                                      A-4
<PAGE>
 
PART C.  OTHER INFORMATION


Item 24.  Financial Statements and Exhibits.

     (a)  Financial Statements.

          (1)  Part A
                    Financial Highlights.

          (2)  Part B
    
                    Financial statements dated as of June 30, 1998 are
                    incorporated by reference in the Statement of Additional
                    Information from the Funds' Annual Reports dated as of June
                    30, 1998 and include the following:     

                         Schedule of Investments
                         Financial Highlights
                         Statements of Assets and Liabilities
                         Statements of Operations
                         Statements of Changes in Net Assets
                         Notes to Financial Statements
                         Report of Independent Accountants.
    
          [Unaudited Financial Statements through December 30, 1999 to be
          incorporated in a post-effective amendment filed prior to the
          effective date of this Amendment]     

     (b)  Exhibits (the number of each exhibit relates to the exhibit
          designation in Form N-1A):

          (1)       Form of Second Amendment and Restated Agreement and
                    Declaration of Trust (2)

          (2)       Form of First Amended and Restated Bylaws (4)

          (3)       Not Applicable

          (4)  (a)  Article III (Shares) and Article V (Shareholders' Voting
                    Powers and Meetings) of the Second Amended and Restated
                    Agreement and Declaration of Trust (2)     

               (b)  Article 9 (Issuance of Shares Certificates) and Article 11
                    (Shareholders' Voting Powers and Meetings) of the First
                    Amended and Restated Bylaws (4)     
<PAGE>
 
          (5)  (a) (i)   Form of Amended and Restated Investment Advisory
                         Agreement (4)

                   (ii)  Form of Addendum to Amended and Restated Investment
                         Advisory Agreement to add PIMCO International Growth
                         Fund and PIMCO Tax-Efficient Structured Emerging
                         Markets Fund (6)

                   (iii) Form of Addendum to Amended and Restated
                         Investment Advisory Agreement to add PIMCO Value 25
                         Fund, PIMCO Hard Assets Fund, and PIMCO Tax-Efficient
                         Equity Fund (10)     

                   (iv)  Form of Addendum to Amended and Restated Investment
                         Advisory Agreement to add PIMCO Funds Asset Allocation
                         Series - 90/10 Portfolio, PIMCO Funds Asset Allocation
                         Series - 60/40 Portfolio, and PIMCO Funds Asset
                         Allocation Series -30/70 Portfolio (9)

               (b) (i)   Form of Portfolio Management Agreement with Pacific
                         Investment Management Company (6)

                   (ii)  Form of Portfolio Management Agreement, as amended,
                         with NFJ Investment Group (4)

                   (iii) Form of Addendum to Portfolio Management Agreement
                         with NFJ Investment Group to add PIMCO Value 25 Fund
                         and PIMCO Hard Assets Fund (10)     

                   (iv)  Form of Portfolio Management Agreement, as amended,
                         with Cadence Capital Management (4)

                   (v)   Form of Portfolio Management Agreement, as amended,
                         with Parametric Portfolio Associates (4)

                   (vi)  Form of Addendum to Portfolio Management Agreement with
                         Parametric Portfolio Associates to add PIMCO Tax-
                         Efficient Structured Emerging Markets Fund (6)

                                      -2-
<PAGE>
 
                         (vii)  Form of Addendum to Portfolio Management
                                Agreement with Parametric Portfolio Associates
                                to add PIMCO Tax-Efficient Equity Fund (10)     

                         (viii) Form of Amended and Restated Portfolio
                                Management Agreement with Blairlogic Capital
                                Management (4)

                         (ix)   Form of Amended and Restated Portfolio
                                Management Agreement with Columbus Circle
                                Investors (4)

                         (x)    Form of Addendum to Portfolio Management
                                Agreement with Columbus Circle Investors to add
                                PIMCO International Growth Fund (6)
    
                        (xi)    Form of Portfolio Management Agreement with Van
                                Eck Associates Corporation (4)     

              (6)  (a)  Amended Distribution Contract (4)

                   (b)  Form of Amended and Restated Distribution Contract (to
                        add Class D shares) (7)

                   (c)  Form of Addendum to Distribution Contract to add
                        PIMCO International Growth Fund and PIMCO Tax-Efficient
                        Structured Emerging Markets Fund (6)

                   (d)  Form of Addendum to Distribution Contract to add
                        PIMCO Value 25 Fund, PIMCO Hard Assets Fund, and PIMCO
                        Tax-Efficient Equity Fund (10)     

                   (e)  Form of Addendum to Distribution Contract to add
                        PIMCO Funds Asset Allocation Series - 90/10 Portfolio,
                        PIMCO Funds Asset Allocation Series - 60/40 Portfolio
                        and PIMCO Funds Asset Allocation Series - 30/70
                        Portfolio (9)

              (7)       Not Applicable

              (8)  (a)  Form of Custody Agreement and Addenda (1)     

                   (b)  Form of Addendum to Custody Agreement (4)

                   (c)  Form of Assignment of Custody Agreement (4)

                   (d)  Form of Addendum to Custody Agreement (6)

              (9)  (a)  Form of Amended Administration Agreement between the
                        Trust and PIMCO Advisors L.P. (4)

                                      -3-
<PAGE>
 
                   (b)  Form of Amended and Restated Administration Agreement
                        (to include Class D shares ) between the Trust and PIMCO
                        Advisors L.P. (7)

                   (c)  Form of Administration Agreement between PIMCO Advisors
                        L.P. and Pacific Investment Management Company (4)
    
                   (d)  Form of Amendment to Administration Agreement (to
                        include Class D shares) between PIMCO Advisors L.P. and
                        Pacific Investment Management Company (11)      
                             

                   (e)  Form of Agency Agreement and Addenda (1)
                      
                   (f)  Form of Addendum to Agency Agreement (4)
                      
                   (g)  Form of Assignment of Agency Agreement (4)
                      
                   (h)  Form of Addendum to Agency Agreement (6)
                      
                   (i)  Form of Transfer Agency Agreement with Shareholder
                        Services, Inc. (3)
                      
                   (j)  Form of Service Plan for Institutional Services Shares
                        (6)

                   (k)  Form of Administrative Services Plan for Administrative
                        Class Shares (4)

              (10)      Opinion and Consent of Counsel (6)
    
              (11) (a)  Consent of PricewaterhouseCoopers LLP (11)      
                             

                   (b)  Consent and Opinion of Coopers & Lybrand LLP (6)

              (12)      Not Applicable

              (13)      Initial Capital Agreement (6)

              (14)      Not Applicable

              (15) (a)  Form of Distribution and Servicing Plan (Class A) (4)

                   (b)  Form of Distribution and Servicing Plan (Class B) (4)

                   (c)  Form of Distribution and Servicing Plan (Class C) (4)

                   (d)  Form of Distribution Plan for Administrative Class
                        Shares (4)

                                      -4-
<PAGE>
 
                   (e)  Form of Distribution Plan for Class D Shares included as
                        part of the Form of Amended and Restated Administration
                        Agreement included in Exhibit 9(b)

              (16)      Schedule of Computation of Performance (6)
    
              (17)      Financial Data Schedules for fiscal year ended 6/30/98
                        (11)      

              (18)      Form of Amended and Restated Multi-Class Plan (7)

              (19) (a)  Powers of Attorney and Certificate of Secretary (1)

                   (b)  Power of Attorney for E. Philip Cannon, Donald P.
                        Carter, Gary A. Childress, William D. Cvengros, John P.
                        Hardaway, Joel Segall, W. Bryant Stooks, Gerald M.
                        Thorne, Richard L. Nelson, Lyman W. Porter and Alan
                        Richards (5)

- --------------------
1    Included in Post-Effective Amendment No. 22 to the Registration Statement
     on Form N-1A (File No. 33-36528), as filed on July 1, 1996.

2    Included in Definitive Proxy Statement (File No. 811-06161), as filed on
     November 7, 1996.

3    Included in Post-Effective Amendment No. 33 to the Registration Statement
     on Form N-1A of PIMCO Advisors Funds (File No. 2-87203), as filed on
     November 30, 1995.

4    Included in Post-Effective Amendment No. 25 to the Registration Statement
     on Form N-1A (File 33-36528), as filed on January 13, 1997.

5    Included in Post-Effective Amendment No. 27 to the Registration Statement
     on Form N-1A (File 33-36528), as filed on October 10, 1997.

6    Included in Post-Effective Amendment No.28 to the Registration Statement on
     Form N-1A (File 33-36528), as filed on October 31, 1997.

7    Included in Post-Effective Amendment No. 30 to the Registration Statement
     on Form N-1A (File 33-36528), as filed on March 13, 1998.

8    Included in Post-Effective Amendment No. 32 to the Registration Statement
     on Form N-1A (File 33-36528), as filed on April 21, 1998.

    
9    Included in Post-Effective Amendment No. 33 to the Registration Statement
     on Form N-1A (File 33-36528), as filed on June 30, 1998.

10.  Included in Post-Effective Amendment No. 34 to the Registration Statement
     on Form N-1A (File 33-36528), as filed on July 2, 1998.
    
11.  Included in Post-Effective Amendment No. 36 to the Registration Statement 
     on Form N-1A (File 33-36528), as filed on October 30, 1998.      

Item 25.  Persons Controlled by or Under Common Control with Registrant.     

                                      -5-
<PAGE>
 
          Not applicable.

    
Item 26.  No longer required.     
 
Item 27.  Indemnification

     Reference is made to Article VIII, Section 1, of the Registrant's Second
Amended and Restated Agreement and Declaration of Trust, which is incorporated
by reference herein.

     Insofar as indemnification for liabilities arising under the Securities Act
of 1933, as amended (the "Act"), may be permitted to trustees, officers and
controlling persons of the Registrant by the Registrant pursuant to the Trust's
Second Amended and Restated Agreement and Declaration of Trust, its By-Laws or
otherwise, the Registrant is aware that in the opinion of the Securities and
Exchange Commission, such indemnification is against public policy as expressed
in the Act and, therefore, is unenforceable.  In the event that a claim for
indemnification against such liabilities (other than the payment by the
Registrant of expenses incurred or paid by trustees, officers or controlling
persons of the Registrant in the successful defense of any action, suit or
proceeding) is asserted by such trustees, officers or controlling persons in
connection with the securities being registered, the Registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Act and will
be governed by the final adjudication of such issue.

Item 28.  Business and Other Connections of Investment Advisor and Portfolio
     Managers.

     Unless otherwise stated, the principal business address of each
organization listed in 800 Newport Center Drive, Newport Beach, CA  92660.

                              PIMCO Advisors L.P.
 
Name                 Position with Advisor         Other Affiliations
                                                
Walter E. Auch, Sr.  Member of Management Board    Management Consultant;
                                                   Director, Fort Dearborn Fund,
                                                   Shearson VIP Fund, Shearson
                                                   Advisors Fund, Shearson TRAK
                                                   Fund, Banyan Land Trust,
                                                   Banyan Land Fund II, Banyan
                                                   Mortgage Fund, Allied
                                                   Healthcare Products, Inc.,
                                                   First Western Inc., DHR Group
                                                   and Geotech Industries.

                                      -6-
<PAGE>
 
David B. Breed       Member of Management Board    Director, Managing Director
                                                   and Chief Executive Officer,
                                                   Cadence Capital Management,
                                                   Inc.; Managing Director and
                                                   Chief Executive Officer,
                                                   Cadence Capital Management.

Donald A. Chiboucas  Member of Management Board    Director, Columbus Circle
                                                   Investors Management, Inc.;
                                                   Managing Director, Columbus
                                                   Circle Investors.

    
William D. Cvengros  Chief Executive Officer       Trustee and Chairman of the
                     and President, Member of      Trust; Director, PIMCO Funds
                     Management Board              Distributors LLC, Chief
                                                   Executive Officer and
                                                   President, Value Advisors
                                                   LLC; Director, PIMCO Funds
                                                   Advertising Agency; Director,
                                                   President and Chief Executive
                                                   Officer, Thomson Advisory
                                                   Group, Inc.     


Walter B. Gerken     Chairman and Member of        Director, Mullin Consulting
                     Management Board              Inc Director, Executive
                                                   Services Corps. of Southern
                                                   California.

    
William H. Gross     Operating Board               Director and Managing
                     and Equity Board              Director, PIMCO Management,
                                                   Inc.; Managing Director,
                                                   Pacific Investment Management
                                                   Company; Senior Vice
                                                   President, PIMCO Funds:
                                                   Pacific Investment Management
                                                   Series, PIMCO Variable
                                                   Insurance Trust; Director and
                                                   Vice President, StocksPLUS
                                                   Management, Inc.; Member of
                                                   PIMCO Partners LLC.     

Brent R. Harris      Member of Management Board    Director and Managing
                                                   Director, PIMCO Management,
                                                   Inc.; Managing Director,
                                                   Pacific Investment Management
                                                   Company; Director and Vice
                                                   President,

                                      -7-
<PAGE>
 
                                                         StocksPLUS Management,
                                                         Inc.; Chairman of the
                                                         Board and Trustee,
                                                         PIMCO Funds: Pacific
                                                         Investment Management
                                                         Series, PIMCO Variable
                                                         Insurance Trust and
                                                         PIMCO Commercial
                                                         Mortgage Securities
                                                         Trust, Inc.; Member of
                                                         PIMCO Partners LLC.

Donald R. Kurtz           Member of Management Board     Donald R. Kurtz Member
                                                         of Management Board
                                                         Formerly, Vice
                                                         President of Internal
                                                         Asset Management,
                                                         General Motors
                                                         Investment Management
                                                         Corp.; Director,
                                                         Thomson Advisory Group
                                                         L.P.

George A. Long            Member of Management Board     Chairman and Chief
                                                         Executive Officer of
                                                         Oppenheimer Capital.

    
James McCaughan           Member of Management Board     Chief Executive
                                                         Officer, Oppenheimer
                                                         Capital

     
James F. McIntosh         Member of Management Board     Executive Director,
                                                         Allen Matkins, Leck,
                                                         Gamble & Mallory LLP.
                                                         Formerly, Director,
                                                         Pacific Investment
                                                         Management Company.

Kenneth H. Mortenson      Member of Management Board     Managing Director of
                                                         Oppenheimer Capital.

William F. Podlich, III   Member of Management Board     Director and Managing
                                                         Director, PIMCO
                                                         Management, Inc.;
                                                         Managing Director,
                                                         Pacific Investment
                                                         Management Company;
                                                         Vice President, PIMCO
                                                         Commercial Mortgage
                                                         Securities Trust, Inc.;
                                                         Member of PIMCO
                                                         Partners LLC.

Glenn S. Schafer          Member of Management           Board President and
                                                         Director, Pacific
                                                         Mutual Holding Company,
                                                         Pacific LifeCorp,
                                                         Pacific Life Insurance
                                                         Company, Pacific
                                                         Financial Asset
                                                         Management Corp.,
                                                         PMRealty Advisors,
                                                         Inc.; Director, Pacific
                                                         Mutual Distributors,
                                                         Inc., Mutual Service
                                                         Corporation,
                                                         UnitedPlanners' Group,
                                                         Inc., Thomson Advisory
                                                         Group.

                                      -8-
<PAGE>
 
Thomas C. Sutton     Member of Management Board    Chairman, Chief Executive
                                                   Officer and Director, Pacific
                                                   William S. Thomson, Jr.
                                                   Mutual Holding Company,
                                                   Pacific LifeCorp, Pacific
                                                   Life Insurance Company,
                                                   Pacific Financial Asset
                                                   Management Corp.; Director,
                                                   Pacific Mutual Distributors,
                                                   Inc., Mutual Service
                                                   Corporation, United Planners'
                                                   Group, Inc., PMRealty
                                                   Advisors, Inc.


William S. Thomson,  Member of Management Board;   Director, Managing Director
Jr.                  Chairman, Executive           and Chief Executive Committee
                                                   Fitzgerald Officer, PIMCO
                                                   Management, Inc.; Chief
                                                   Executive Officer and
                                                   Managing Director, Pacific
                                                   Investment Management
                                                   Company; Member, President
                                                   and Chief Executive Officer,
                                                   PIMCO Partners LLC; Director
                                                   and President, StocksPLUS
                                                   Management, Inc.; Vice
                                                   President, PIMCO Variable
                                                   Insurance Trust, PIMCO Funds:
                                                   Pacific Investment Management
                                                   Series, and PIMCO Commercial
                                                   Mortgage Securities Trust,
                                                   Inc.; Director, Thomson
                                                   Advisory Group, Inc.



Robert M. Fitzgerald Senior Vice President         Chief Financial Officer and
                     and Chief                     Treasurer, PIMCO Funds
                     Financial Officer             Distributors, LLC, Columbus
                                                   Circle Investors, Columbus
                                                   Circle Investors Management,
                                                   Inc., Cadence Capital
                                                   Management, Inc., NFJ
                                                   Investment Group, NFJ
                                                   Management, Inc., Parametric
                                                   Portfolio Associates,
                                                   Parametric Management, Inc.,
                                                   PIMCO Management, Inc.,
                                                   Pacific

                                      -9-
<PAGE>
 
                                                   Investment Management
                                                   Company, and StocksPLUS
                                                   Management, Inc.; Chief
                                                   Financial Officer and
                                                   Assistant Treasurer, Cadence
                                                   Capital Management; Senior
                                                   Vice President and Chief
                                                   Financial Officer, Value
                                                   Advisors LLC; Chief Financial
                                                   Officer, Columbus Circle
                                                   Trust Company; Chief
                                                   Financial Officer and
                                                   Treasurer, PIMCO Funds
                                                   Advertising Agency; Senior
                                                   Vice President, Chief
                                                   Financial Officer and
                                                   Treasurer, Thomson Advisory
                                                   Group, Inc.

Benjamin L. Trosky   Member of Management Board    Managing Director, Pacific
                                                   Investment Management
                                                   Company; Director and
                                                   Managing Director, PIMCO
                                                   Management, Inc.; Senior Vice
                                                   President, PIMCO Commercial
                                                   Mortgage Securities Trust,
                                                   Inc.; Member of PIMCO
                                                   Partners LLC.

    
Bradley W. Paulson   Vice President                Vice President and Secretary,
                                                   PIMCO Global Advisors
                                                   (Europe) Limited, PIMCO
                                                   Global Advisors (Japan)
                                                   Limited; Vice President,
                                                   Pacific Investment Management
                                                   Company.


Kenneth M. Poovey    Chief Operating Officer       Executive Vice President and
                     and General Counsel           General Counsel, Value
                                                   Advisors LLC and Thomson
                                                   Advisory Group, Inc.     


Stephen J. Treadway  Executive Vice President      Chairman, President, and
                                                   Chief Executive Officer,
                                                   PIMCO Funds Advertising
                                                   Agency, Inc., PIMCO Funds
                                                   Distributors LLC, and
                                                   Trustee, President and Chief
                                                   Executive Officer of the
                                                   Trust;

                                      -10-
<PAGE>
 
                                                   Executive Vice President, 
                                                   Value Advisors LLC.        

Robert S. Venable    Vice President                None                       
                                                                              


James G. Ward        Senior Vice President,        Senior Vice President, Human
                     Human Resources               Resources, Value Advisors
                                                   LLC; Senior Vice President,
                                                   Thomson Advisory Group, Inc.
                     
Richard M. Weil      Senior Vice President -       Senior Vice President,
                     Legal, Secretary              Assistant Secretary, PIMCO
                                                   Management, Inc.; Secretary,
                                                   Cadence Capital Management,
                                                   Inc., NFJ Investment Group,
                                                   NFJ Management, Inc.,
                                                   Parametric Portfolio
                                                   Associates, Parametric
                                                   Management, Inc., and
                                                   StocksPLUS Management, Inc.;
                                                   Assistant Secretary, Columbus
                                                   Circle Investors, Columbus
                                                   Circle Investors Management,
                                                   Inc., Cadence Capital
                                                   Management, PIMCO Funds
                                                   Advertising Agency, Inc. and
                                                   Pacific Management Investment
                                                   Company; Senior Vice
                                                   President, Legal, Secretary
                                                   Value Advisors LLC, Thomson
                                                   Advisors LLC, Thomson
                                                   Advisory Group, Inc., and
                                                   Vice President of the 
                                                   Trust.     
                                                   
                                      
    

Frank C. Poli        Vice President, Director of   Compliance Officer,
                     Compliance                    PIMCO Funds Distributors LLC

     
                                                  

                                                
Vinh T. Nguyen       Vice President, Controller    Vice President, Controller,
                                                   Columbus Circle Investors
                                                   Management, Inc., Cadence
                                                   Capital Management, Inc., NFJ
                                                   Management, Inc., Parametric
                                                   Management, Inc., StocksPLUS
                                                   Management, Inc., PIMCO Funds
                                                   Advertising Agency, Inc.,
                                                   PIMCO

                                      -11-
<PAGE>
 
                                                   Funds Distributors LLC,
                                                   and Value Advisors LLC;
                                                   Controller, Pacific
                                                   Investment Management Company
                                                   and PIMCO Management, Inc.

                         
                         
    
Timothy R. Clark     Vice President, Mutual        Senior Vice President, PIMCO
                     Funds Division                Funds Distributors LLC

                         

Newton B. Schott,    Senior Vice President,        Director, Executive Vice
Jr.                  Mutual Funds Division         President, Chief
                                                   Administrative Officer,
                                                   General Counsel and
                                                   Secretary, PIMCO Funds
                                                   Distributors LLC and PIMCO
                                                   Funds Advertising Agency,
                                                   Inc.; Chief Legal Officer and
                                                   Secretary, Columbus Circle
                                                   Investors, Columbus Circle
                                                   Investors Management, Inc.;
                                                   Senior Vice President, Mutual
                                                   Fund Division; General
                                                   Counsel and Secretary,
                                                   Columbus Circle Trust
                                                   Company; Vice President and
                                                   Secretary, the Trust; Senior
                                                   Vice President, Value
                                                   Advisors LLC.



Diane P. Dubois      Vice President, Finance      None.


Ernest L. Schmider   Senior Vice President        See Pacific Investment
                                                  Management Company



                           Cadence Capital Management
                        Exchange Place, 53 State Street
                          Boston, Massachusetts  02109
 
Name                     Position with Portfolio   Other Affiliations
                         Manager     

William B. Bannick       Managing Director and     Director and Managing
                         Executive Vice President  Director,
                                                   Cadence Capital Management,
                                                   Inc.

David B. Breed          Managing Director and      Member of Management Board,
                        Chief Executive Officer    PIMCO Advisors L.P.;
                                                   Director, Managing Director
                                                   and Chief Executive Officer,
                                                   Cadence Capital Management,
                                                   Inc.

                                      -12-
<PAGE>
 
Katherine A. Burdon     Managing Director            None.

Mary Ellen Melendez     Secretary                    None.

Robert M. Fitzgerald    Chief Financial Officer      See PIMCO Advisors L.P.
                        and Assistant Treasurer

Barbara M. Green        Treasurer                    None.
    
Richard M. Weil         Assistant Secretary          See PIMCO Advisors L.P.
     
 



                              NFJ Investment Group
                          2121 San Jacinto, Suite 1440
                              Dallas, Texas  75201
     
Name                    Position with Portfolio      Other Affiliations     
                        Manager

Benno J. Fischer        Managing Director            Director, Managing
                                                     Director, and Co-Chairman,
                                                     NFJ Management, Inc.

Robert M. Fitzgerald    Chief Financial Officer      See PIMCO Advisors L.P.
                        and Treasurer

John L. Johnson         Managing Director            Director, and Co-Chairman
                                                     Managing Director, NFJ
                                                     Management, Inc.

Jack C. Najork          Managing Director            Director, Managing
                                                     Director, Co-Chairman, NFJ
                                                     Management, Inc.

Richard M. Weil         Secretary                    See PIMCO Advisors L.P.

                                      -13-
<PAGE>
 
     
                        Parametric Portfolio Associates
                    7310 Columbia Center, 701 Fifth Avenue,
                        Seattle, Washington  98104-7090
 
Name                       Position with Portfolio           Other Affiliations
     
                                  Manager

William E. Cornelius,    Managing Director            Director, Managing
Jr.                                                   Chief Executive Officer
                                                      Parametric Management,
                                                      Inc.

David M. Stein           Managing Director            Director and Managing
                                                      Director, Parametric
                                                      Management, Inc.

Brian Langstraat         Managing Director            None.

Robert M. Fitzgerald     Chief Financial Officer      See PIMCO Advisors L.P.
                         and Treasurer

Richard M. Weil          Secretary                    See PIMCO Advisors L.P.

    
                Pacific Investment Management Company ("PIMCO")
                      840 Newport Center Drive, Suite 300
                        Newport Beach, California  92660
 
Name                    Position with Portfolio       Other Affiliations
                        Manager

George C. Allan         Senior Vice President         Senior Vice President,
                                                      PIMCO Management, Inc.

Tamara J. Arnold        Senior Vice President         Senior Vice President,
                                                      PIMCO Management, Inc.

Michael R. Asay         Vice President                Vice President, PIMCO
                                                      Management, Inc.     

Leslie A. Barbi         Senior Vice President         Senior Vice President,
                                                      PIMCO Management, Inc.
    
William R. Benz, II     Managing Director             Director and Managing
                                                      Director, PIMCO
                                                      Management, Inc.; Member
                                                      of PIMCO Partners 
                                                      LLC.     

                                      -14-
<PAGE>
 
Gregory A. Bishop        Vice President             None.
    
Andrew Brick             Senior Vice President      Senior Vice President,
                                                    PIMCO Management, Inc.     

John B. Brynjolfsson     Vice President             Vice President, PIMCO
                                                    Management, Inc.
    
R. Welsley Burns         Executive Vice President   Executive Vice President,
                                                    PIMCO Management, Inc. and
                                                    the Trust; President, PIMCO
                                                    Funds: Pacific Investment
                                                    Management Series; President
                                                    and Director, PIMCO
                                                    Commercial Mortgage
                                                    Securities Trust, Inc.;
                                                    President and Trustee, PIMCO
                                                    Variable Insurance Trust;
                                                    Director, PIMCO Global
                                                    Advisors (Ireland) Limited
                                                    and PIMCO Advisors Funds
                                                    plc.

Carl J. Cohen            Vice President             Vice President, PIMCO
                                                    Management, Inc.

Jerry L. Coleman         Vice President             Vice President, PIMCO
                                                    Management, Inc.

Doug Cummings            Vice President             Vice President, PIMCO
                                                    Management, Inc.

Wendy W. Cupps           Vice President             Vice President, PIMCO
                                                    Management, Inc.

Chris Dialynas           Director                   Managing Director, PIMCO
                                                    Management, Inc.
David J. Dorff           Vice President

Michael Dow              Vice President             Vice President, PIMCO
                                                    Management, Inc. and PIMCO
                                                    Funds:  Pacific Investment
                                                    Management Series.     

                                      -15-
<PAGE>
 
Anita Dunn               Vice President             Vice President, PIMCO
                                                    Management, Inc.

A. Benjamin Ehlert      Executive Vice President    Executive Vice President,
                                                    PIMCO Management, Inc.
    
Robert A. Ettl          Senior Vice President and   Vice President, PIMCO
                        Chief Operations Officer    Management, Inc.     

Anthony L. Faillace     Vice President              Vice President, PIMCO
                                                    Management, Inc.

Robert M. Fitzgerald    Chief Financial Officer     See PIMCO Advisors L.P.
                        and Treasurer

Ursula T. Frisch        Vice President              Vice President, PIMCO
                                                    Management, Inc. and PIMCO
                                                    Funds:  Pacific Investment
                                                    Management Series.

William H. Gross        Managing Director           See PIMCO Advisors L.P.


John L. Hague           Managing Director           Director, PIMCO Management,
                                                    Inc., Member of PIMCO
                                                    Partners LLC.

Gordon C. Hally         Executive Vice President    Executive Vice President,
                                                    PIMCO Management, Inc.
    
Pasi M. Hamalainen      Executive Vice President    Executive Vice President,
                                                    PIMCO Management, Inc.     

John P. Hardaway        Vice President              Vice President, PIMCO
                                                    Management, Inc.; Treasurer
                                                    of the Trust, PIMCO Funds:
                                                    Pacific Investment
                                                    Management Series, PIMCO
                                                    Commercial Mortgage
                                                    Securities Trust, Inc., and
                                                    PIMCO Variable Insurance
                                                    Trust.

Brent R. Harris         Managing Director           See PIMCO Advisors L.P.

    
Joseph Hattesohl        Vice President and Manager  Vice President, PIMCO
                        of Fund Taxation            Management, Inc.; Assistant
                                                    Treasurer, the Trust, PIMCO
                                                    Funds: Pacific Investment
                                                    Management Series, PIMCO
                                                    Variable Insurance Trust,
                                                    and PIMCO Commercial
                                                    Mortgage Securities Trust,
                                                    Inc.     

                                      -16-
<PAGE>
 
Raymond C. Hayes        Vice President              Vice President, PIMCO Robert
                                                    G. Herin Management, Inc.
                                                    and PIMCO Funds: Pacific
                                                    Investment Management
                                                    Series.
    
Robert G. Herin         Vice President              Vice President, PIMCO 
                                                    Management, Inc.     

David C. Hinman         Vice President              Vice President, PIMCO
                                                    Management, Inc.

Liza Hocson             Vice President              Vice President, PIMCO
                                                    Management, Inc.

Douglas M. Hodge        Executive Vice President    Executive Vice President,
                                                    PIMCO Management, Inc.

Brent L. Holden         Executive Vice President    Executive Vice President,
                                                    PIMCO Management, Inc.

Dwight F. Holloway,     Vice President              Vice President, PIMCO 
Jr.                                                 Management, Inc.

Jane T. Howe            Vice President              Vice President, PIMCO
                                                    Management, Inc.

Mark Hudoff             Vice President              Vice President, PIMCO
                                                    Management, Inc.

Margaret E. Isberg      Executive Vice President    Executive Vice President,
                                                    PIMCO Management, Inc.;
                                                    Senior Vice President, PIMCO
                                                    Funds: Pacific Investment
                                                    Management Series.

James M. Keller         Vice President              Vice President, PIMCO
                                                    Management, Inc.

                                      -17-
<PAGE>
 
     
Sharon K. Kilmer        Executive Vice President    None.

Thomas J. Kelleher      Vice President              Vice President, PIMCO
                                                    Management, Inc.

Raymond G. Kennedy      Senior Vice President       Senior Vice President, 
                                                    PIMCO Management, Inc.

Mark R. Kiesel          Vice President              Vice President, PIMCO
                                                    Management, Inc.

Steven P. Kirkbaumer    Vice President              None.     

John S. Loftus          Executive Vice President    Executive Vice President,
                                                    PIMCO Management, Inc.; Vice
                                                    President and Assistant
                                                    Secretary, StocksPLUS
                                                    Management, Inc.

David Lown              Vice President              Vice President, PIMCO
                                                    Management, Inc.
    
Andre J. Mallegol       Vice President              Vice President, PIMCO
                                                    Management, Inc.

Michael E. Martini      Vice President              Vice President, PIMCO
                                                    Management, Inc.     

Dean S. Meiling         Managing Director           Director and Managing
                                                    Director, PIMCO Management,
                                                    Inc.; Vice President, PIMCO
                                                    Funds: Pacific Investment
                                                    Management Series and PIMCO
                                                    Commercial Mortgage
                                                    Securities Trust, Inc.;
                                                    Member of PIMCO Partners
                                                    LLC.
    
Joseph V. McDevitt      Executive Vice President    Vice President, PIMCO
                                                    Management, Inc.     

                                      -18-
<PAGE>
 
James F. Muzzy          Managing Director           Director and Managing
                                                    Director, PIMCO Management,
                                                    Inc.; Vice President, PIMCO
                                                    Funds: Pacific Investment
                                                    Management Series; Director
                                                    and Vice President,
                                                    StocksPLUS Management, Inc.;
                                                    Member of PIMCO Partners
                                                    LLC.
    
Doris S. Nakamura       Vice President     

Vinh T. Nguyen          Controller                  See PIMCO Advisors L.P.

Douglas J. Ongaro       Vice President              Vice President, PIMCO 
                                                    Management, Inc. and PIMCO
                                                    Funds:  Pacific Investment
                                                    Management Series.

Thomas J. Otterbein     Vice President              Vice President, PIMCO
                                                    Management, Inc.
    
Victoria M. Paradis     Vice President              Vice President, PIMCO
                                                    Management, Inc.

Bradley W. Paulson      Vice President              Vice President and
                                                    Secretary, Vice President
                                                    PIMCO Global Advisors
                                                    (Europe) Limited, PIMCO
                                                    Global Advisors (Japan)
                                                    Limited.

Elizabeth M. Philipp    Vice President              Vice President, PIMCO 
                                                    Management, Inc.     

David J. Pittman        Vice President              None.

William F. Podlich, 
III                     Managing Director           See PIMCO Advisors L.P.
                                                    
William C. Powers       Managing Director           Director and Managing
                                                    Director, PIMCO Management,
                                                    Inc.; Senior Vice President
                                                    PIMCO Commercial Mortgage
                                                    Securities Trust, Inc.;
                                                    Member of PIMCO Partners
                                                    LLC. 
                                                    

Edward P. Rennie        Senior Vice President       Senior Vice President, PIMCO
                                                    Management, Inc.

                                      -19-
<PAGE>
 
     
Terry A. Randall        Vice President     

Scott L. Roney          Vice President              Vice President, PIMCO
                                                    Management, Inc.
     
Michael J. Rosborough   Senior Vice President       Senior Vice President,
                                                    PIMCO Management, Inc.
    
Seth R. Ruthen          Vice President              Vice President, PIMCO
                                                    Management, Inc.

Jeffrey M. Sargent      Vice President and Manager  Vice President of the Trust,
                        Shareholder Services and    PIMCO Management, Inc., 
                        Fund Administration         PIMCO Funds: Pacific 
                                                    Investment Management 
                                                    Series, PIMCO Variable 
                                                    Insurance Trust, and
                                                    PIMCO Commercial Mortgage
                                                    Securities Trust, Inc.     

Ernest L. Schmider      Executive Vice President,   Executive Vice President,
                        Secretary, Chief            Secretary, Chief         
                        Administrative and Legal    Administrative           
                        Officer                     and Legal Officer, PIMCO 
                                                    Management, Inc.; Director,
                                                    Assistant Secretary, 
                                                    Assistant Treasurer, 
                                                    StocksPLUS
                                                    Management, Inc.; 
                                                    Secretary,  PIMCO 
                                                    Partners LLC. 
           
Leland T. Scholey       Senior Vice President       Senior Vice President, PIMCO
                                                    Management, Inc., and PIMCO
                                                    Funds: Pacific Investment
                                                    Management Series.

Richard W. Selby        Senior Vice President       None.
                        and Chief Technology 
                        Officer
    
Denise C. Seliga        Vice President              Vice President, PIMCO
                                                    Management, Inc.     

Rita J. Seymour         Vice President              Vice President, PIMCO 
                                                    Management, Inc.      

Christopher Sullivan    Vice President              Vice President, PIMCO
                                                    Management, Inc.

                                      -20-
<PAGE>
 
     
Cheryl L. Sylwester     Vice President              Vice President, PIMCO
                                                    Management, Inc.     

Lee R. Thomas, III      Managing Director           Director and Managing
                                                    Director, PIMCO Management,
                                                    Inc.; Member of PIMCO
                                                    Partners LLC.
    
William S. Thomson,     Director, Managing          See PIMCO Advisors L.P. 
Jr.                     Director, Chief 
                        Executive Officer                                  

Benjamin L. Trosky      Managing Director           See PIMCO Advisors L.P.

    
Richard E. Tyson        Vice President              Vice President, PIMCO 
                                                    Management, Inc.

Peter A. Van de Zilver  Vice President              Vice President, PIMCO
                                                    Management, Inc.     

Marilyn Wegener         Vice President              Vice President, PIMCO
                                                    Management, Inc. 

Richard M. Weil         Assistant Secretary         See PIMCO Advisors L.P.

    
Paul C. Westhead        Vice President              Vice President, PIMCO 
                                                    Management, Inc.     

Kristen M. Wilsey       Vice President              Vice President, PIMCO
                                                    Management, Inc. and PIMCO
                                                    Funds:  Pacific Investment
                                                    Management Series.

George H. Wood          Senior Vice President       Senior Vice President, 
                                                    PIMCO Management, Inc.

Michael A. Yetter       Vice President              Vice President, PIMCO
                                                    Management, Inc.

David Young             Vice President              Vice President, PIMCO
                                                    Management, Inc.

                                      -21-
<PAGE>
 
                           Columbus Circle Investors
                                  Metro Center
                          One Station Place, 8th Floor
                          Stamford, Connecticut  06902

     
Name                    Position with Portfolio     Other Affiliations
                        Manager                                            
                                                    
Christopher B.          Managing Director and       Director, Columbus 
Burnham                 Chief Executive Officer     Circle Investors 
                                                    Management, Inc. 
    
Louis P. Celentano      Managing Director and       Director, Columbus Circle
                        Chief Operating Officer     Investors Management, Inc.;
                                                    Director, Chairman and Chief
                                                    Operating Officer, Columbus
                                                    Circle Trust Company     

Donald A. Chiboucas     Managing Director           See PIMCO Advisors L.P.

Robert W. Fehrmann      Managing Director           Director, Columbus Circle
                                                    Investors Management, Inc.

Marc S. Felman          Managing Director           Director, Columbus Circle
                                                    Investors Management, Inc.

Robert M. Fitzgerald    Chief Financial Officer     See PIMCO Advisors L.P.
                        and Treasurer

Clifford G. Fox         Managing Director           Director, Columbus Circle
                                                    Investors Management, Inc.

Taegan D. Goddard       Senior Vice President       None.

Winthrop S. Headley     Senior Vice President       None.
    
Amy M. Hogan            Managing Director           Director of Columbus Circle
                                                    Investors Management, Inc.;
                                                    Executive Vice President and
                                                    Chief Investment Officer,
                                                    Columbus Circle Trust 
                                                    Company.     

                                      -22-
<PAGE>
 
Anthony Rizza           Managing Director           Director, Columbus
                                                    Circle Investors 
                                                    Management, Inc.
                                                        
Newton B. Schott, Jr.   Chief Legal Officer and     See PIMCO Advisors L.P.
                        Secretary                        
                                                    
Irwin F. Smith          Managing Director           Director, Columbus Circle
                                                    Investors Management, Inc.
                                                    
Nathaniel J. Belknap    Vice President              None.
                                                    
Anne Maloney            Vice President              None.
                                                    
Paul Meeks              Vice President              None.
                                                        
Michele Montano         Senior Vice President       Executive Vice President,
                                                    Columbus Circle Trust 
                                                    Company.      

Paul A. Pantalena       Senior Vice President       None.
                                                    
Cecelia Pastore         Vice President              None.
                                                        
Harold R. Snedcof       Vice President              Executive Vice President,
                                                    Columbus Circle Trust 
                                                    Company.     
 
Jennifer Kennedy        Vice President              None
                        
Vinh T. Nguyen          Vice President and          See PIMCO Advisors L.P.
                        Controller

Richard M. Weil         Assistant Secretary         See PIMCO Advisors, Inc.
                                                        
Bradford Higgins        Executive Vice President    None.
                                                    
Deborah Grennan         Vice President              None.
                                                    
Alison Kelley           Vice President              None.
                                                    
Dennis McKechnie        Vice President              None.
                                                    
Steven E. Moeller       Vice President              None.
                                                    
Michele Ward            Vice President              None.     

                                      -23-
<PAGE>
 
                    Blairlogie Capital Management, Limited
                         4th Floor, 125 Princes Street
                          Edinburgh EH2 4AD, Scotland


     
Name                    Position with Portfolio     Other Affiliations
                        Manager     

Gavin R. Dobson         Chief Executive Officer     Director and Chief Executive
                        and Managing Director       Officer, Blairlogie Holdings
                                                    Limited (U.K.). 

James G. S. Smith       Chief Investment Officer    Director and Chief
                        and Managing Director       Investment Officer, 
                                                    Blairlogie Holdings
                                                    Limited (U.K.).


                        Van Eck Associates Corporation
                                99 Park Avenue
                           New York, New York  10016


Name                    Position with Portfolio     Other Affiliations
                        Manager

Philip DeFeo            Director, President and     Trustee, Van Eck Funds 
                        Chief Executive Officer     ("VEF") and Van Eck 
                                                    Worldwide Insurance Trust 
                                                    ("WWIT"); Director, 
                                                    President and Chief 
                                                    Executive Officer, 
                                                    Van Eck Securities 
                                                    Corporation ("VESC").

John C. van Eck         Chairman of the Board       Chairman of the Board and
                                                    President, VEF and WWIT;
                                                    Chairman of the Board, VESC;
                                                    Director, Eclipse Financial
                                                    Asset Trust.  Formerly, 
                                                    Director, Abex Inc.; 
                                                    Director, The Henley Group,
                                                    Inc.

Fred M. van Eck         Director                    Trustee, VEF and WWIT; 
                                                    Private Investor, Director,
                                                    VESC.

Sigrid S. van Eck       Director, Vice President    Vice President, Assistant
                        and Assistant Treasurer     Treasurer and Director, 
                                                    VESC.

                                      -24-
<PAGE>
 
Jan van Eck          Director                       Director and Executive Vice
                                                    President, VESC.

Derek M. van Eck     Director and Executive Vice    Director and Executive Vice
                     President; Director, Global    President, VESC; President
                     Investments                    Global Hard Assets Series 
                                                    of the Van Eck Funds and 
                                                    Worldwide Hard Assets 
                                                    Series of WWIT; Vice 
                                                    President, Global Balanced
                                                    Series of VEF.

Bruce J. Smith       Vice President, Treasurer,     Vice President, Treasurer,
                     Controller and Chief           Controller and Chief 
                     Financial Officer              Financial Officer, VESC; 
                                                    Vice President, VEF and 
                                                    WWIT.
 
Thaddeus M.          Vice President, Secretary      Vice President and 
Leszcynski           and General Counsel            Secretary, VEF and WWIT; 
                                                    Vice President, Secretary 
                                                    and General Counsel, VESC.

Henry J. Bingham     Executive Managing Director    Executive Vice President, 
                                                    VEF and WWIT; Executive Vice
                                                    President of VESC.

Lucille Palermo      Associate, Mining Research     President, International
                                                    Investors
                                                    Gold and Gold/Resources 
                                                    Series of VEF.

Kevin Reid           Director, Real Estate          President, Global Real 
                     Research                       Estate Series of VEF and 
                                                    Worldwide Real Estate 
                                                    Series of WWIT; Vice 
                                                    President, Global Hard 
                                                    Assets Series of VEF and 
                                                    Worldwide Hard Assets 
                                                    Series of WWIT.

Charles Cameron      Director, Trading              Vice President, VEF 
                                                    and WWIT.    

                                     -25-
<PAGE>
 
Item 29.   Principal Underwriters.


    (a)    PIMCO Funds Distributors LLC (the "Distributor") serves as
           Distributor of shares for the Registrant and also of PIMCO Funds:
           Pacific Investment Management Series. The Distributor is a wholly
           owned subsidiary of PIMCO Advisors L.P., the Registrant's Adviser.


    (b)
 
                          Positions and               Positions
Name and Principal        Offices with                and Offices
Business Address*         Underwriter                 with Registrant

Jeffrey L. Booth          Vice President              Vice President, PIMCO
                                                      Funds Advertising
                                                      Agency, Inc.

James D. Bosch            Regional Vice President     None

Deborah P. Brennan        Vice President              None

Timothy R. Clark          Senior Vice President       None

Jonathan P. Fessel        Vice President              None

Robert M. Fitzgerald      Chief Financial Officer     None
                          and Treasurer

Michael J. Gallagher      Vice President              None

David S. Goldsmith        Vice President              None

Ronald H. Gray            Vice President              None

John B. Hussey            Vice President              None

Edward W. Janeczek        Senior Vice President       None

Stephen R. Jobe           Vice President              Vice President, PIMCO
                                                      Funds Advertising
                                                      Agency, Inc.

Jonathan C. Jones         Vice President              None

Raymond Lazcano           Vice President              None

                                      -26-
<PAGE>
 
    
William E. Lynch          Senior Vice President       None
 
Kevin D. Maloney          Compliance Officer          None     

Jacqueline A. McCarthy    Vice President              None

Andrew J. Meyers          Executive Vice President    Executive Vice
                                                      President,
                                                      PIMCO Funds
                                                      Advertising Agency, Inc.

Fiora N. Moyer            Regional Vice President     None

Philip J. Neugebauer      Vice President              Vice President, PIMCO
                                                      Funds Advertising Agency

Vinh T. Nguyen            Vice President, Controller  None

Joffrey H. Pearlman       Regional Vice President     None

Glynne P. Pisapia         Regional Vice President     None
    
Francis C. Poli           Compliance Officer          Vice President, Director
                                                      of Compliance, PIMCO
                                                      Advisors L.P.

Mark J. Porterfield       Vice President,             Vice President,
                          Compliance Officer          Compliance Officer,
                                                      PIMCO Advisors L.P.     
    
Newton B. Schott, Jr.     Executive Vice President,   Vice President and
                          Chief Administrative        Secretary
                          Officer, General Counsel
                          and Secretary     

Robert M. Smith           Vice President              None

Ellen Z. Spear            Vice President              Vice President, PIMCO
                                                      Funds Advertising
                                                      Agency, Inc.

Daniel W. Sullivan        Vice President              None

William H. Thomas, Jr.    Regional Vice President     None

                                      -27-
<PAGE>
 
Stephen J. Treadway       Chairman, President and     Executive Vice
                          Chief Executive Officer     President,
                                                      PIMCO Advisors L.P.
                                                      and Trustee

Paul H. Troyer            Senior Vice President       None

Brian F. Trumbore         Executive Vice President    None

Richard M. Weil           Assistant Secretary         None

Glen A. Zimmerman         Vice President              None

- -----------------------
    
    Principal business address for all individuals listed is 2187 Atlantic
Street, Stamford, CT 06902, except for Messrs. Fitzgerald, Maloney, Nguyen, Poli
and Weil, for whom the address is 800 Newport Center Drive, Newport Beach, CA
92660.     

    (c)    The Registrant has no principal underwriter that is not an affiliated
           person of the Registrant or an affiliated person of such an
           affiliated person.

Item 30.   Location of Accounts and Records.

    The account books and other documents required to be maintained by the
Registrant pursuant to Section 31(a) of the Investment Company Act of 1940 and
the Rules thereunder will be maintained at the offices of Investors Fiduciary
Trust Company, 21 West 10th Street, Kansas City, Missouri 64105, and Shareholder
Services, Inc., P.O. Box 5866, Denver, CO 80217.

Item 31.   Management Services.

           Not Applicable.

Item 32.   Undertakings.

    (a)    Not Applicable.

    (b)    Not Applicable.

    (c)    Registrant, if requested to do so by the holders of at least 10% of
           the Registrant's outstanding shares, will call a meeting of
           shareholders for the purpose of voting upon the questions of removal
           of a trustee or trustees, and will assist communications among
           shareholders as set forth within Section 16(c) of the 1940 Act.

                                      -28-
<PAGE>
 
    (d)    Registrant undertakes to furnish each person to whom a prospectus is
           delivered with a copy of the Registrant's latest annual report(s) to
           shareholders, upon request and without charge.

                                      -29-
<PAGE>
 
                                    NOTICE
                                    ------

     A copy of the Agreement and Declaration of Trust of PIMCO Funds: Multi-
Manager Series (the "Trust"), together with all amendments thereto, is on file
with the Secretary of State of The Commonwealth of Massachusetts and notice is
hereby given that this instrument is executed on behalf of the Trust by an
officer of the Trust as an officer and not individually and that the obligations
of or arising out of this instrument are not binding upon any of the Trustees of
the Trust or shareholders of any series of the Trust individually but are
binding only upon the assets and property of the Trust or the respective series.


                                  SIGNATURES
                                  ----------
                
     Pursuant to the requirements of the Securities Act of 1933 and the
Investment Company Act of 1940, the Registrant certifies that it has duly caused
this Post-Effective Amendment No. 37 (the "Amendment") to its Registration
Statement to be signed on its behalf by the undersigned, thereto duly
authorized, in the City of Stamford, and the State of Connecticut on the 28th of
January, 1999.     
                              PIMCO FUNDS: MULTI-MANAGER SERIES

                              By: /s/ Stephen J. Treadway
                                  ------------------------------
                                  Stephen J. Treadway,
                                  President
            
     Pursuant to the requirements of the Securities Act of 1933, this Post-
Effective Amendment No. 37 has been signed below by the following persons in the
capacities and on the dates indicated.     


Name                              Capacity                 Date
- ----                              --------                 ----
                                                                    
/s/ Stephen J. Treadway           Trustee and President    January 28, 1999     
- ----------------------------
Stephen J. Treadway


John P. Hardaway*                 Treasurer and Principal
- ----------------------------      Financial and Accounting
John P. Hardaway                  Officer                  


William D. Cvengros*              Trustee
- ----------------------------
William D. Cvengros

         

Joel Segall*                      Trustee
- ----------------------------
Joel Segall


Donald P. Carter*                 Trustee
- ----------------------------
Donald P. Carter


E. Philip Cannon*                 Trustee
- ----------------------------
E. Philip Cannon


Gary A. Childress*                Trustee
- ----------------------------
Gary A. Childress


Richard L. Nelson*                Trustee
- ----------------------------
Richard L. Nelson


Lyman W. Porter*                  Trustee
- ----------------------------
Lyman W. Porter


Alan Richards*                    Trustee
- ----------------------------
Alan Richards


W. Bryant Stooks*                 Trustee
- ----------------------------
W. Bryant Stooks


Gerald M. Thorne*                 Trustee
- ----------------------------
Gerald M. Thorne
                                  *By: /s/ Stephen J. Treadway
                                       ----------------------------
                                        Stephen J. Treadway,
                                        Attorney-In-Fact

                                      
                              Date: January 28, 1999     

                                      -2-


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