PIMCO FUNDS MULTI MANAGER SERIES
497, 2000-11-03
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<PAGE>

PIMCO Funds Prospectus


                       ---------------------------------------------------------
Multi-Manager          PIMCO Equity Advisors
Series
                       Equity Income Fund         Select Growth Fund
November 1, 2000
                       Value Fund                 Target Fund
Share Classes
                       Renaissance Fund           Opportunity Fund

Ins Institutional      Growth & Income Fund       Innovation Fund
Adm Administrative
                       Growth Fund                Global Innovation Fun



--------------------------------------------------------------------------------
PIMCO/ALLIANZ INTERNATIONAL ADVISORS
Allianz Select International Fund



--------------------------------------------------------------------------------
CADENCE CAPITAL MANAGEMENT
Mega-Cap Fund                                   Mid-Cap Fund

Capital Appreciation Fund                       Micro-Cap Fund


--------------------------------------------------------------------------------
NFJ INVESTMENT GROUP
Small-Cap Value Fund


--------------------------------------------------------------------------------
PARAMETRIC PORTFOLIO ASSOCIATES
Enhanced Equity Fund                            Tax-Efficient Structured
Tax-Efficient Equity Fund
Structured Emerging Markets Fund                   Emerging Markets Fund

--------------------------------------------------------------------------------
BLAIRLOGIE CAPITAL MANAGEMENT
International Fund



This cover is not part of the Prospectus.
<PAGE>

            PIMCO Funds Prospectus

PIMCO       This Prospectus describes 21 mutual funds offered by PIMCO Funds:
Funds:      Multi-Manager Series. The Funds provide access to the professional
Multi-      investment advisory services offered by PIMCO Advisors L.P. and
Manager     its investment management affiliates. As of September 30, 2000,
Series      PIMCO Advisors and its affiliates managed approximately
            $272 billion in assets. PIMCO Advisors' institutional heritage is
            reflected in the PIMCO Funds offered in this Prospectus.

November
1, 2000


            This Prospectus explains what you should know about the Funds
            before you invest. Please read it carefully.

Share
Classes
Institutional
and
Administrative
            The Securities and Exchange Commission has not approved or
            disapproved these securities or determined if this Prospectus is
            truthful or complete. Any representation to the contrary is a
            criminal offense.

1  PIMCO Funds: Multi-Manager Series
<PAGE>

            Table of Contents

<TABLE>
         <S>                                                               <C>
         Summary Information..............................................   3
         Fund Summaries
           Equity Income Fund.............................................   5
           Value Fund.....................................................   7
           Renaissance Fund...............................................   9
           Growth & Income Fund...........................................  11
           Growth Fund....................................................  13
           Select Growth Fund.............................................  15
           Target Fund....................................................  17
           Opportunity Fund...............................................  19
           Innovation Fund................................................  21
           Global Innovation Fund.........................................  23
           Allianz Select International Fund..............................  25
           Mega-Cap Fund..................................................  27
           Capital Appreciation Fund......................................  29
           Mid-Cap Fund...................................................  31
           Micro-Cap Fund.................................................  33
           Small-Cap Value Fund...........................................  35
           Enhanced Equity Fund...........................................  37
           Tax-Efficient Equity Fund......................................  39
           Structured Emerging Markets Fund...............................  41
           Tax-Efficient Structured Emerging Markets Fund.................  44
           International Fund.............................................  47
         Summary of Principal Risks.......................................  49
         Management of the Funds..........................................  53
         Investment Options -- Institutional Class and Administrative
          Class Shares ...................................................  59
         Purchases, Redemptions and Exchanges.............................  60
         How Fund Shares Are Priced.......................................  65
         Fund Distributions...............................................  66
         Tax Consequences.................................................  67
         Characteristics and Risks of Securities and Investment
          Techniques......................................................  68
         Financial Highlights.............................................  79
</TABLE>
                                                                   Prospectus
                                                                               2
<PAGE>

            Summary Information

 The table below lists the investment objectives and certain investment
 characteristics of the Funds. Other important characteristics are described
 in the individual Fund Summaries beginning on page 5.

<TABLE>
<CAPTION>
                                                                                                           Approximate
                                                                                                           Number of
  Sub-Adviser      Fund                    Investment Objective     Main Investments                       Holdings
 ---------------------------------------------------------------------------------------------------------------------
  <S>              <C>                     <C>                      <C>                                    <C>
  PIMCO Equity       Equity Income         Current income as a      Income producing common stocks of         40-50
  Advisors                                 primary objective; long- companies with market capitalizations
                                           term growth of capital   of more than $2 billion
                                           is a secondary objective
             ---------------------------------------------------------------------------------------------------------
                     Value                 Long-term growth of      Common stocks of companies with market     40
                                           capital and income       capitalizations of more than $5
                                                                    billion and below-average valuations
                                                                    whose business fundamentals are
                                                                    expected to improve
             ---------------------------------------------------------------------------------------------------------
                     Renaissance           Long-term growth of      Common stocks of companies with below-    50-80
                                           capital and income       average valuations whose business
                                                                    fundamentals are expected to improve
             ---------------------------------------------------------------------------------------------------------
                     Growth & Income       Long-term growth of      Common stocks of companies with market    40-60
                                           capital; current income  capitalizations of at least $1 billion
                                           is a secondary objective
             ---------------------------------------------------------------------------------------------------------
                     Growth                Long-term growth of      Common stocks of companies with market    35-40
                                           capital; income is an    capitalizations of at least $5 billion
                                           incidental consideration
             ---------------------------------------------------------------------------------------------------------
                     Select Growth         Long-term growth of      Common stocks of companies with market    15-25
                                           capital; income is an    capitalizations of at least $10
                                           incidental consideration billion
             ---------------------------------------------------------------------------------------------------------
                     Target                Capital appreciation; no Common stocks of companies with market    40-60
                                           consideration is given   capitalizations of between $1 billion
                                           to income                and $10 billion
             ---------------------------------------------------------------------------------------------------------
                     Opportunity           Capital appreciation; no Common stocks of companies with market   60-100
                                           consideration is given   capitalizations of between $100
                                           to income                million and $2 billion
             ---------------------------------------------------------------------------------------------------------
                     Innovation            Capital appreciation; no Common stocks of technology-related        40
                                           consideration is given   companies with market capitalizations
                                           to income                of more than $200 million
             ---------------------------------------------------------------------------------------------------------
                     Global Innovation     Capital appreciation; no Common stocks of U.S. and non-U.S.        30-60
                                           consideration is given   technology-related companies with
                                           to income                market capitalizations of more than
                                                                    $200 million
 ---------------------------------------------------------------------------------------------------------------------
  PIMCO/Allianz      Select International  Capital appreciation     Common stocks of companies located        30-60
  International                                                     outside of the United States with
  Advisors LLC                                                      market capitalizations of more than $1
                                                                    billion
 ---------------------------------------------------------------------------------------------------------------------
  Cadence Capital    Mega-Cap              Long-term growth of      Common stocks of companies with very      40-60
  Management                               capital                  large market capitalizations that have
                                                                    improving fundamentals and whose stock
                                                                    is reasonably valued by the market
             ---------------------------------------------------------------------------------------------------------
                     Capital Appreciation  Growth of capital        Common stocks of companies with market   60-100
                                                                    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 with market   60-100
                                                                    capitalizations of more than $500
                                                                    million (excluding the largest 200
                                                                    companies) that have improving
                                                                    fundamentals and whose stock is
                                                                    reasonably valued by the market
             ---------------------------------------------------------------------------------------------------------
                     Micro-Cap             Long-term growth of      Common stocks of companies with market   60-100
                                           capital                  capitalizations of less than $250
                                                                    million that have improving
                                                                    fundamentals and whose stock is
                                                                    reasonably valued by the market

             ---------------------------------------------------------------------------------------------------------
</TABLE>

3  PIMCO Funds: Multi-Manager Series
<PAGE>

            Summary Information (continued)

<TABLE>
<CAPTION>
                                                                                                       Approximate
                                                                                                       Number of
  Sub-Adviser           Fund           Investment Objective     Main Investments                       Holdings
 -----------------------------------------------------------------------------------------------------------------
  <S>                   <C>            <C>                      <C>                                    <C>
  NFJ Investment Group  Small-Cap      Long-term growth of      Common stocks of companies with market     100
                        Value          capital and income       capitalizations of between $100
                                                                million and $1.5 billion and below-
                                                                average price-to-earnings ratios
                                                                relative to the market and their
                                                                industry groups

 -----------------------------------------------------------------------------------------------------------------
  Parametric Portfolio  Enhanced       A total return which     Common stocks represented in the S&P     100-200
  Associates            Equity         equals or exceeds the    500 Index with market capitalizations
                                       total return performance of more than $5 billion
                                       of an index (currently
                                       the S&P 500 Index) that
                                       represents the
                                       performance of a
                                       reasonably broad
                                       spectrum of common
                                       stocks that are publicly
                                       traded in the U.S.
             -----------------------------------------------------------------------------------------------------
                        Tax-Efficient  Maximum after-tax growth A broadly diversified portfolio of at     More
                        Equity         of capital               least 200 common stocks of companies      than
                                                                represented in the S&P 500 Index with      200
                                                                market capitalizations of more than $5
                                                                billion
             -----------------------------------------------------------------------------------------------------
                        Structured     Long-term growth of      Common stocks of companies located in,    More
                        Emerging       capital                  or whose principal business operations    than
                        Markets                                 are based in, emerging markets             300
             -----------------------------------------------------------------------------------------------------
                        Tax-Efficient  Long-term growth of      Common stocks of companies located in,    More
                        Structured     capital; the Fund also   or whose principal business operations    than
                        Emerging       seeks to achieve         are based in, emerging markets             300
                        Markets        superior after-tax
                                       returns for its
                                       shareholders by using a
                                       variety of tax-efficient
                                       management strategies

 -----------------------------------------------------------------------------------------------------------------
  Blairlogie Capital    International  Capital appreciation     Common stocks of foreign (non-U.S.)      200-250
  Management                           through investment in an issuers (developed and emerging
                                       international portfolio; markets) with market capitalizations
                                       income is an incidental  of more than $500 million
                                       consideration
 -----------------------------------------------------------------------------------------------------------------
</TABLE>

Fund
Descriptions,
Performance
and Fees
            The Funds provide a broad range of investment choices. The
            following Fund Summaries identify each Fund's investment
            objective, principal investments and strategies, principal risks,
            performance information and fees and expenses. A more detailed
            "Summary of Principal Risks" describing principal risks of
            investing in the Funds begins after the Fund Summaries.

             It is possible to lose money on investments in the Funds. The
            fact that a Fund had good performance in the past (for example,
            during the year ended 1999) is no assurance that the value of the
            Fund's investments will not decline in the future or appreciate at
            a slower rate. An investment in a Fund is not a deposit of a bank
            and is not insured or guaranteed by the Federal Deposit Insurance
            Corporation or any other government agency.

                                                                   Prospectus  4
<PAGE>

            PIMCO Equity Income Fund
                                                         Ticker Symbols:
                                                         PEIIX  (Inst. Class)
                                                         PINAX  (Admin. Class)
-------------------------------------------------------------------------------
Principal     Investment           Fund Focus             Approximate
Investments   Objective            Income producing       Capitalization
and           Seeks current        common stocks with     Range
Strategies    income as a          potential for          More than $2
              primary              capital                billion
              objective;           appreciation
              long-term                                   Dividend Frequency
              growth of            Approximate Number     Quarterly
              capital is a         of Holdings
              secondary            40-50
              objective


            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in income-producing (e.g.,
            dividend-paying) common stocks of companies with market
            capitalizations of more than $2 billion at the time of investment.
            The Fund may also invest to a limited degree in convertible
            securities and preferred stocks.

             The Fund's initial selection universe consists of the 1,000
            largest publicly traded companies (in terms of market
            capitalization) in the U.S. The portfolio managers classify the
            universe by industry. They then identify the most undervalued
            stocks in each industry based mainly on relative P/E ratios,
            calculated both with respect to trailing operating earnings and
            forward earnings estimates. From this group of stocks, the Fund
            buys approximately 25 stocks with the highest dividend yields. The
            portfolio managers then screen the most undervalued companies in
            each industry by dividend yield to identify the highest yielding
            stocks in each industry. From this group, the Fund buys
            approximately 25 additional stocks with the lowest P/E ratios.

             In selecting stocks, the portfolio managers consider quantitative
            factors such as price momentum (based on changes in stock price
            relative to changes in overall market prices), earnings momentum
            (based on analysts' earnings per share estimates and revisions to
            those estimates), relative dividend yields, valuation relative to
            the overall market and trading liquidity. The portfolio managers
            may replace a stock when a stock within the same industry group
            has a considerably higher dividend yield or lower valuation than
            the Fund's current holding.

             The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). In response to unfavorable market and
            other conditions, the Fund may make temporary investments of some
            or all of its assets in high-quality fixed income securities. This
            would be inconsistent with the Fund's investment objective and
            principal strategies.

-------------------------------------------------------------------------------
Principal
Risks

            Among the principal risks of investing in the Fund, which could
            adversely affect its net asset value, yield and total return, are:

<TABLE>
           <S>                      <C>                       <C>
           . Market Risk            . Foreign Investment Risk . Credit Risk
           . Issuer Risk            . Currency Risk           . Management Risk
           . Value Securities Risk  . Interest Rate Risk
</TABLE>

             Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

-------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Institutional Class shares.
            For periods prior to the inception of Administrative Class shares
            (11/30/94), performance information shown in the Average Annual
            Total Returns table for that class is based on the performance of
            the Fund's Institutional Class shares. The prior Institutional
            Class performance has been adjusted to reflect the actual
            distribution and/or service (12b-1) fees and other expenses paid
            by Administrative Class shares. Prior to May 8, 2000, the Fund had
            a different sub-adviser and would not necessarily have achieved
            the performance results shown on the next page under its current
            investment management arrangements. Past performance is no
            guarantee of future results.

5  PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Equity Income Fund (continued)

            Calendar Year Total Returns -- Institutional Class

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 -
                                                            9/30/00        7.28%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (2nd Qtr.
                                                            '99)          16.06%
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            '98)         -10.93%

                                    [GRAPH]

                                1992     14.75%
                                1993      8.47%
                                1994     -1.61%
                                1995     33.47%
                                1996     21.48%
                                1997     31.38%
                                1998      8.37%
                                1999     -1.92%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                                 Fund Inception
                                                  1 Year 5 Years (3/8/91)(/3/)
         ----------------------------------------------------------------------
         <S>                                      <C>    <C>     <C>
         Institutional Class                      -1.92% 17.75%  14.25%
         ----------------------------------------------------------------------
         Administrative Class                     -2.22% 17.47%  13.96%
         ----------------------------------------------------------------------
         S&P 500 Index(/1/)                       21.04% 28.56%  19.75%
         ----------------------------------------------------------------------
         Lipper Equity Income Funds Average(/2/)   3.62% 17.60%  14.24%
            -------------------------------------------------------------------
</TABLE>
            (1)  The S&P 500 Index is an unmanaged index of large
                 capitalization common stocks. It is not possible to invest
                 directly in the index.
            (2)  The Lipper Equity Income Funds Average is a total return
                 performance average of funds tracked by Lipper Analytical
                 Services, Inc. that seek relatively high current income and
                 growth of income through investing 65% or more of their
                 portfolios in dividend-paying equities. It does not take into
                 account sales charges.
            (3)  The Fund began operations on 3/8/91. Index comparisons begin
                 on 2/28/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   0.45%    None           0.27%         0.72%
         ---------------------------------------------------------------------
         Administrative  0.45     0.25%          0.27          0.97
         ---------------------------------------------------------------------
            (1)  Other Expenses reflects a 0.25% Administrative Fee paid by
                 the class and 0.02% in other expenses attributable to that
                 class during the most recent fiscal year.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

         Share Class     Year 1   Year 3         Year 5        Year 10
         ---------------------------------------------------------------------
         Institutional   $74      $230           $401          $  894
         ---------------------------------------------------------------------
         Administrative   99       309            536           1,190
         ---------------------------------------------------------------------
</TABLE>

                                                                   Prospectus  6
<PAGE>

            PIMCO Value Fund
                                                         Ticker Symbols:
                                                         PDLIX (Inst. Class)
                                                         PVLAX (Admin. Class)

--------------------------------------------------------------------------------
Principal     Investment Objective Fund Focus             Approximate
Investments   Seeks long-term      Undervalued            Capitalization Range
and           growth of capital    larger                 More than $5 billion
Strategies    and income           capitalization
                                   stocks with
                                   improving
                                   business
                                   fundamentals           Dividend Frequency
                                                          At least annually

                                   Approximate Number
                                   of Holdings
                                   40

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with market capitalizations of more than $5 billion at the time of
            investment and below-average valuations whose business
            fundamentals are expected to improve. To achieve income, the Fund
            invests a portion of its assets in income-producing (e.g.,
            dividend-paying) common stocks.

             The portfolio manager selects stocks for the Fund using a "value"
            style. The portfolio manager invests primarily in stocks of
            companies having below-average valuations whose business
            fundamentals are expected to improve. The portfolio manager
            determines valuation based on characteristics such as price-to-
            earnings, price-to-book, and price-to-cash flow ratios. The
            portfolio manager analyzes stocks and seeks to identify the key
            drivers of financial results and catalysts for change, such as new
            management and new or improved products, that indicate a company
            may demonstrate improving fundamentals in the future. The
            portfolio manager looks to sell a stock when he believes that the
            company's business fundamentals are weakening or when the stock's
            valuation has become excessive.

             The Fund may also invest to a limited degree in other kinds of
            equity securities, including preferred stocks and convertible
            securities. The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADR's). In response to unfavorable market and
            other conditions, the Fund may make temporary investments of some
            or all of its assets in high-quality fixed income securities. This
            would be inconsistent with the Fund's investment objective and
            principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

            . Market Risk            . Foreign Investment Risk  . Credit Risk
            . Issuer Risk            . Currency Risk            . Management
            . Value Securities Risk  . Focused Investment Risk    Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Institutional Class shares.
            For periods prior to the inception of Administrative Class shares
            (8/21/97), performance information shown in the Average Annual
            Total Returns table for that class is based on the performance of
            the Fund's Institutional Class shares. The prior Institutional
            Class performance has been adjusted to reflect the actual
            distribution and/or service (12b-1) fees and other expenses paid
            by Administrative Class shares. Prior to May 8, 2000, the Fund had
            a different sub-adviser and would not necessarily have achieved
            the performance results shown on the next page under its current
            investment management arrangements. Past performance is no
            guarantee of future results.

7  PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Value Fund (continued)

            Calendar Year Total Returns -- Institutional Class

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 -
                                                            9/30/00       13.15%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (2nd Qtr.
                                                            '99)          17.92%
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            '98)         -13.23%
                                    [GRAPH]

                                 1992   13.15%
                                 1993   16.41%
                                 1994   -4.07%
                                 1995   38.91%
                                 1996   20.34%
                                 1997   26.21%
                                 1998   10.17%
                                 1999    4.30%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                                   Fund Inception
                                                    1 Year 5 Years (12/30/91)(/3/)
         -------------------------------------------------------------------------
         <S>                                        <C>    <C>     <C>
         Institutional Class                        4.30%  19.37%  15.11%
         -------------------------------------------------------------------------
         Administrative Class                       3.94%  19.05%  14.81%
         -------------------------------------------------------------------------
         Russell 1000 Value Index(/1/)              7.34%  23.08%  17.85%
         -------------------------------------------------------------------------
         Lipper Multi-Cap Value Funds Average(/2/)  6.69%  18.32%  14.24%
         -------------------------------------------------------------------------
</TABLE>
            (1)  The Russell 1000 Value Index is an unmanaged index that
                 measures the performance of companies in the Russell 1000
                 Index considered to have less than average growth
                 orientation. It is not possible to invest directly in the
                 index. The Russell 1000 Value Index replaced the S&P 500
                 Index (an unmanaged index of large capitalization common
                 stocks) as the Fund's comparative index because PIMCO
                 Advisors believes that the Russell 1000 Value Index is more
                 representative of the Fund's investment strategies. For
                 periods ended December 31, 1999, the 1 Year, 5 Year and Fund
                 Inception average total returns of the S&P 500 Index were
                 21.04%, 28.56% and 19.70%, respectively.
            (2)  The Lipper Multi-Cap Value Funds Average is a total return
                 performance average of funds tracked by Lipper Analytical
                 Services, Inc. that invest in companies with a variety of
                 capitalization ranges, without concentrating in any one market
                 capitalization range over an extended period of time. It does
                 not take into account sales charges.
            (3)  The Fund began operations on 12/30/91. Index comparisons begin
                 on 12/31/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   0.45%    None           0.25%         0.70%
         ---------------------------------------------------------------------
         Administrative  0.45     0.25%          0.26          0.96
         ---------------------------------------------------------------------
            (1)  Other Expenses reflects a 0.25% Administrative Fee paid by
                 each class and 0.01% in other expenses attributable to
                 Administrative Class shares during the most recent fiscal
                 year.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<CAPTION>        Share Class
          Year 1         Year 3   Year 5         Year 10
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   $72      $224           $390          $  871
         ---------------------------------------------------------------------
         Administrative   98       306            531           1,178
         ---------------------------------------------------------------------
</TABLE>

                                                                   Prospectus  8


<PAGE>

            PIMCO Renaissance Fund
                                                         Ticker Symbols:
                                                         PRNIX (Inst. Class)
                                                         PRAAX (Admin. Class)
--------------------------------------------------------------------------------
Principal     Investment Objective  Fund Focus            Approximate
Investments   Seeks long-term       Undervalued           Capitalization Range
and           growth of capital     stocks with           All capitalizations
Strategies    and income            improving
                                    business
                                    fundamentals
                                                          Dividend Frequency
                                    Approximate Number    At least annually
                                    of Holdings
                                    50-80

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with below-average valuations whose business fundamentals are
            expected to improve. Although the Fund typically invests in
            companies with market capitalizations of $1 billion to $10 billion
            at the time of investment, it may invest in companies in any
            capitalization range. To achieve income, the Fund invests a
            portion of its assets in income producing (e.g., dividend-paying)
            stocks.

             The portfolio manager selects stocks for the Fund using a "value"
            style. The portfolio manager invests primarily in common stocks of
            companies having below-average valuations whose business
            fundamentals, such as market share, strength of management and
            competitive position, are expected to improve. The portfolio
            manager determines valuation based on characteristics such as
            price-to-earnings, price-to-book, and price-to-cash flow ratios.
            The portfolio manager analyzes stocks and seeks to identify the
            key drivers of financial results and catalysts for change, such as
            new management and new or improved products, that indicate a
            company may demonstrate improving fundamentals in the future. The
            portfolio manager looks to sell a stock when he believes that the
            company's business fundamentals are weakening or when the stock's
            valuation has become excessive.

             The Fund may also invest to a limited degree in other kinds of
            equity securities, including preferred stocks and convertible
            securities. The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs).

             In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              . Market Risk          . Foreign Investment Risk    . Credit Risk
              . Issuer Risk          . Currency Risk              . Management
              . Value Securities Risk                               Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Institutional Class shares.
            For periods prior to the inception of Institutional Class shares
            (12/30/97) and Administrative Class shares (8/31/98), performance
            information shown in the bar chart (including the information to
            its right) and in the Average Annual Total Returns table for those
            classes is based on the performance of the Fund's Class C shares,
            which are offered in a different prospectus. The prior Class C
            performance has been adjusted to reflect the actual fees and
            expenses paid by Institutional Class and Administrative Class
            shares, including no sales charges (loads) and lower distribution
            and/or service (12b-1) fees (if any) and administrative fees.
            Prior to May 7, 1999, the Fund had a different sub-adviser and
            would not necessarily have achieved the performance results shown
            on the next page under its current investment management
            arrangements. Past performance is no guarantee of future results.

9 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Renaissance Fund (continued)

            Calendar Year Total Returns -- Institutional Class

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 - 9/30/00
                                                                          18.74%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4th Qtr.
                                                            '98)          18.51%
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            '98)         -16.52%

                                   [GRAPH]


                              1990       -14.47%
                              1991        34.75%
                              1992         9.02%
                              1993        22.62%
                              1994        -3.95%
                              1995        29.06%
                              1996        25.82%
                              1997        36.42%
                              1998        11.83%
                              1999        19.00%


                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
<CAPTION>
                                                                             Fund Inception
                                                    1 Year  5 Years 10 Years (4/18/88)(/3/)
         ----------------------------------------------------------------------------------
         <S>                                        <C>     <C>     <C>      <C>
         Institutional Class                         9.80%  22.16%  14.94%   14.39%
         ----------------------------------------------------------------------------------
         Administrative Class                        9.77%  21.91%  14.68%   14.13%
         ----------------------------------------------------------------------------------
         Russell Mid-Cap Value Index(/1/)           - 0.10% 18.00%  13.81%   14.53%
         ----------------------------------------------------------------------------------
         Lipper Multi-Cap Value Funds Average(/2/)   6.69%  18.32%  13.11%   13.67%
         ----------------------------------------------------------------------------------
</TABLE>
            (1)   The Russell Mid-Cap Value Index is an unmanaged index that
                  measures the performance of medium capitalization companies
                  in the Russell 1000 Index with lower price-to-book ratios
                  and lower forecasted growth values. It is not possible to
                  invest directly in the index. The Mid-Cap Value Index
                  replaced the Russell 1000 Value Index (an unmanaged index
                  that measures the performance of companies in the Russell
                  1000 Index considered to have less than average growth
                  orientation) and replaced the S&P 500 Index (an unmanaged
                  index of large capitalization common stocks) as one of the
                  Fund's comparative indexes because PIMCO Advisors believes
                  the Russell Mid-Cap Value Index is more representative of
                  the Fund's investment strategies. For periods ended December
                  31, 1999, the 1 Year, 5 Years, 10 Years and Fund Inception
                  average annual total returns of the Russell 1000 Value Index
                  were 7.34%, 23.08%, 15.60% and 15.38%, respectively, and of
                  the S&P 500 Index were 21.04%, 28.56%, 18.21% and 19.06%,
                  respectively.
            (2)   The Lipper Multi-Cap Value Funds Average is a total return
                  performance average of funds tracked by Lipper Analytical
                  Services, Inc. that invest in companies with a variety of
                  capitalization ranges without concentrating in any one market
                  capitalization range over an extended period of time. It does
                  not take into account sales charges
            (3)   The Fund began operations on 4/18/88. Index comparisons
                  begin on 4/30/88.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund


            Shareholder Fees (fees paid directly from your investment)    None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
         --------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   0.60%    None           0.25%         0.85%
         --------------------------------------------------------------------
         Administrative  0.60     0.25%          0.25          1.10
         --------------------------------------------------------------------
</TABLE>
            (1)   Other Expenses reflects a 0.25% Administrative Fee paid by
                  the class.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
         Share Class           Year 1             Year 3             Year 5             Year 10
         --------------------------------------------------------------------------------------
         <S>                   <C>                <C>                <C>                <C>
         Institutional          $ 87               $271               $471              $1,049
         --------------------------------------------------------------------------------------
         Administrative          112                350                606               1,340
         --------------------------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 10
<PAGE>

            PIMCO Growth & Income Fund
                                                         Ticker Symbols:
                                                         PMEIX (Inst. Class)
                                                         N/A (Admin. Class)
--------------------------------------------------------------------------------
Principal     Investment           Fund Focus             Approximate
Investments   Objective            Medium and large       Capitalization
and           Seeks long-term      capitalization         Range
Strategies    growth of            common stocks          At least $1 billion
              capital;
              current income       Approximate Number     Dividend Frequency
              is a secondary       of Holdings            At least annually
              objective            40-60

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with market capitalizations of at least $1 billion at the time of
            investment. The Fund may invest up to 75% of its assets in
            securities selected for their growth potential. The Fund will
            normally invest at least 25% of its assets in securities selected
            for their income potential, including dividend-paying common
            stocks, preferred stocks, corporate bonds, convertible securities
            and real estate investment trusts (REITs).

             When selecting securities for the Fund's "growth" segment, the
            portfolio managers seek to identify companies with well-defined
            "wealth creating" characteristics, including superior earnings
            growth (relative to companies in the same industry or the market
            as a whole), high profitability and consistent, predictable
            earnings. In addition, through fundamental research, the portfolio
            managers seek to identify companies that are gaining market share,
            have superior management and possess a sustainable competitive
            advantage, such as superior or innovative products, personnel and
            distribution systems. The Fund's portfolio managers may choose to
            sell a stock in the "growth" segment when they believe that its
            earnings will be disappointing or that market sentiment on the
            company will turn negative. The portfolio managers will also
            consider selling a stock if the company does not meet the
            managers' estimates on revenues and/or earnings, or if an
            alternative investment is deemed to be more attractive.

             When selecting securities for the Fund's "income" segment, the
            portfolio managers seek to identify companies with strong
            operating fundamentals that offer potential for capital
            appreciation and that also have a dividend yield in excess of the
            yield on the S&P 500 Index. The portfolio managers may replace an
            "income" security when another security with a similar risk-to-
            reward profile offers either better potential for capital
            appreciation or a higher yield than the Fund's current holding. To
            achieve its income objective, the Fund may also invest to a
            limited degree in preferred stocks, convertible securities and
            REITs. The Fund may invest up to 10% of its assets in corporate
            bonds, which will typically consist of investment grade securities
            of varying maturities but may also include high yield securities
            ("junk bonds") rated at least B by Standard & Poor's Rating
            Services or Moody's Investors Service, Inc. or, if unrated,
            determined by the Adviser to be of comparable quality.

             The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). The Fund has in the past invested a
            significant portion of its assets in technology or technology-
            related companies, although there is no assurance that it will
            continue to do so in the future. In response to unfavorable market
            and other conditions, the Fund may make temporary investments of
            some or all of its assets in high-quality fixed income securities.
            This would be inconsistent with the Fund's investment objective
            and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

           . Market Risk           . Liquidity Risk          . Interest Rate
           . Issuer Risk           . Foreign Investment Risk   Risk
           . Value Securities Risk . Currency Risk           . High Yield Risk
           . Growth Securities     . Focused Investment Risk . Credit Risk
             Risk                  . Technology Related Risk . Management Risk
           . Smaller Company Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.
--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Institutional Class Shares.
            During the periods shown, Administrative Class shares were
            outstanding only from 8/21/97 (the inception date of
            Administrative Class shares) to 5/27/99 (the date on which all
            Administrative Class shares then outstanding were redeemed). For
            periods prior to 8/21/97 and after 5/27/99, performance
            information shown in the Average Annual Total Returns table for
            Administrative Class shares is based on the performance of the
            Fund's Institutional Class shares, adjusted to reflect the actual
            distribution and/or service (12b-1) fees and other expenses paid
            by Administrative Class shares. The performance information on the
            next page for periods prior to August 1, 2000 reflects the Fund's
            advisory fee rate in effect prior to that date (0.63% per annum),
            which is higher than the current rate (0.60% per annum). Prior to
            July 1, 1999, the Fund had a different sub-adviser and would not
            necessarily have achieved the performance results shown on the
            next page under its current investment management arrangements.
            In addition, the Fund changed its investment objective and
            policies on August 1, 2000; the performance results shown on the
            next page would not necessarily have been achieved had the Fund's
            current objective and policies then been in effect. Past
            performance is no guarantee of future results.

11 PIMCO Funds: Multi-Manager Series
<PAGE>


            PIMCO Growth & Income Fund (continued)

            Calendar Year Total Returns -- Institutional Class


                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00-
                                                            9/30/00       23.58%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4th Qtr.
                                                            '99          40.12%)
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            '98         -11.53%)
                                    [GRAPH]

                              1995        31.72%
                              1996        17.31%
                              1997        16.22%
                              1998        29.89%
                              1999        51.81%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>

                                                                  Fund Inception
                                                   1 Year 5 Years (12/28/94)(/3/)
         ------------------------------------------------------------------------
         <S>                                       <C>    <C>     <C>
         Institutional Class                       51.81% 28.77%  28.72%
         ------------------------------------------------------------------------
         Administrative Class                      51.32% 28.48%  28.41%
         ------------------------------------------------------------------------
         S&P Mid-Cap 400 Index(/1/)                14.73% 23.05%  23.05%
         ------------------------------------------------------------------------
         Lipper Large-Cap Core Funds Average(/2/)  22.77% 25.49%  25.49%
         ------------------------------------------------------------------------
</TABLE>
            (1) The S&P Mid-Cap 400 Index is an unmanaged index of middle
                capitalization U.S. stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Large-Cap Core Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest primarily in companies with market
                capitalizations of greater than 300% of the dollar-weighted
                median market capitalization of the S&P Mid-Cap 400 Index.
                It does not take into account sales charges. The Lipper Large-
                Cap Core Funds Average replaced the Lipper Mid-Cap Funds
                Average (a total return performance average of funds tracked
                by Lipper Analytical Services, Inc. that invest primarily in
                companies with market capitalizations of less than $5 billion
                at the time of investment) because PIMCO Advisors believes the
                Large-Cap Core Funds Average is more representative of the
                Fund's investment strategies. For periods ended December 31,
                1999, the 1 Year, 5 Years and Fund Inception average annual
                total returns of the Lipper Mid-Cap Fund Average were 39.38%,
                23.07% and 23.07%, respectively.
            (3) The Fund began operations on 12/28/94. Index comparisons begin
                on 12/31/94.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                                   Distribution                 Total Annual
                         Advisory  and/or Service Other         Fund Operating
         Share Class     Fees(/1/) (12b-1) Fees   Expenses(/2/) Expenses
         ---------------------------------------------------------------------
         <S>             <C>       <C>            <C>           <C>
         Institutional   0.60%     None           0.40%         1.00%
         ---------------------------------------------------------------------
         Administrative  0.60      0.25%          0.40          1.25
         ---------------------------------------------------------------------
            (1)  On August 1, 2000, the Fund's advisory fee rate decreased by
                 0.03%, to 0.60% per annum.
            (2)  Other Expenses reflects a 0.25% Administrative Fee paid by
                 each class and 0.15% in other expenses attributable to
                 Institutional Class shares during the most recent fiscal
                 year, and estimated to be attributable to Administrative
                 Class shares during the current fiscal year.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<CAPTION>
         Share Class     Year 1    Year 3         Year 5        Year 10
         ---------------------------------------------------------------------
         <S>             <C>       <C>            <C>           <C>
         Institutional   $102      $318           $552          $1,225
         ---------------------------------------------------------------------
         Administrative   127       397            686           1,511
         ---------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 12
<PAGE>

            PIMCO Growth Fund
                                                         Ticker Symbols:
                                                         PGFIX (Inst. Class)
vv                                                       PGFAX (Admin. Class)
------------------------------------------------------------------------------
Principal     Investment          Fund Focus              Approximate
Investments   Objective           Larger capitalization   Capitalization Range
and           Seeks long-term     common stocks           At least $5 billion
Strategies    growth of
              capital; income     Approximate Number      Dividend Frequency
              is an               of Holdings             At least annually
              incidental          35-40
              consideration

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of "growth"
            companies with market capitalizations of at least $5 billion at
            the time of investment.

             The portfolio manager selects stocks for the Fund using a
            "growth" style. The portfolio manager seeks to identify companies
            with well-defined "wealth creating" characteristics, including
            superior earnings growth (relative to companies in the same
            industry or the market as a whole), high profitability and
            consistent, predictable earnings. In addition, through fundamental
            research, the portfolio manager seeks to identify companies that
            are gaining market share, have superior management and possess a
            sustainable competitive advantage, such as superior or innovative
            products, personnel and distribution systems. The Fund looks to
            sell a stock when the portfolio manager believes that its
            earnings, market sentiment or relative performance are
            disappointing or if an alternative investment is more attractive.

             The Fund may also invest to a limited degree in other kinds of
            equity securities, including preferred stocks and convertible
            securities. The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). The Fund has in the past invested a
            significant portion of its assets in technology or technology-
            related companies, although there is no assurance that it will
            continue to do so in the future.

             In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              . Market Risk          . Foreign Investment . Focused Investment
              . Issuer Risk            Risk                 Risk
              . Growth Securities    . Currency Risk      . Credit Risk
                Risk                 . Technology Related . Management Risk
                                       Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart, the information to its
            right and the Average Annual Total Returns table show performance
            of the Fund's Class C shares, which are offered in a different
            prospectus. This is because the Fund has not offered Institutional
            Class or Administrative Class shares for a full calendar year.
            Although Class C, Institutional Class and Administrative Class
            shares would have similar annual returns (because all the Fund's
            shares represent interests in the same portfolio of securities),
            Class C performance would be lower than Institutional Class or
            Administrative Class performance because of the higher sales
            charges and expenses paid by Class C shares. The returns in the
            bar chart and the information to its right do not reflect the
            impact of sales charges (loads). If they did, the returns would be
            lower than those shown. Unlike the bar chart, performance figures
            for Class C shares in the Average Annual Total Returns table
            reflect the impact of sales charges. For periods prior to the
            inception of Institutional Class and Administrative Class shares
            (3/31/99), the Average Annual Total Returns table also shows
            estimated historical performance for Institutional Class and
            Administrative Class shares based on the performance of the Fund's
            Class C shares. The prior Class C performance has been adjusted to
            reflect that there are no sales charges and lower distribution
            and/or service (12b-1) fees (if any), administrative fees and
            other expenses paid by Institutional Class and Administrative
            Class shares. Prior to March 6, 1999, the Fund had a different
            sub-adviser and would not necessarily have achieved the
            performance results shown on the next page under its current
            investment management arrangements. Past performance is no
            guarantee of future results.

13 PIMCO Funds: Multi-Manager Series

<PAGE>

            PIMCO Growth Fund (continued)

            Calendar Year Total Returns -- Class C

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 -
                                                            9/30/00________4.43%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4th Qtr.
                                                            '99)          36.21%
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            '90)         -13.14%
                              [GRAPH]

                         1990         0.29%
                         1991        41.88%
                         1992         2.08%
                         1993         9.32%
                         1994        -0.75%
                         1995        27.47%
                         1996        17.52%
                         1997        21.84%
                         1998        38.90%
                         1999        39.83%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
         <S>                                         <C>    <C>     <C>      <C>
                                                                             Fund Inception
                                                     1 Year 5 Years 10 Years (2/24/84)(/3/)
         ----------------------------------------------------------------------------------
         Class C                                     38.83% 28.80%  18.77%   19.25%
         ----------------------------------------------------------------------------------
         Institutional Class                         40.87% 30.17%  20.08%   20.58%
         ----------------------------------------------------------------------------------
         Administrative Class                        40.54% 29.85%  19.79%   20.29%
         ----------------------------------------------------------------------------------
         S&P 500 Index(/1/)                          21.04% 28.56%  18.21%   18.60%
         ----------------------------------------------------------------------------------
         Lipper Large-Cap Growth Funds Average(/2/)  40.54% 29.41%  18.88%   17.74%
         ----------------------------------------------------------------------------------
</TABLE>
            (1)  The S&P 500 Index is an unmanaged index of large
                 capitalization common stocks. It is not possible to invest
                 directly in the index.
            (2)  The Lipper Large-Cap Growth Funds Average is a total return
                 performance average of funds tracked by Lipper Analytical
                 Services, Inc. that invest primarily in companies with market
                 capitalizations of greater than 300% of the dollar-weighted
                 median market capitalization of the S&P Mid-Cap 400 Index. It
                 does not take into account sales charges.
            (3)  The Fund began operations on 2/24/84. Index comparisons begin
                 on 2/29/84.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment) None


            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
                                  <C>                          <C>
                         <C>      Distribution   <C>           Total Annual
         <S>             Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
         ---------------------------------------------------------------------
         Institutional   0.50%    None           0.27%         0.77%
         ---------------------------------------------------------------------
         Administrative  0.50     0.25%          0.27          1.02
         ---------------------------------------------------------------------
            (1)   Other Expenses reflects a 0.25% Administrative Fee paid by
                  the class and 0.02% in other expenses attributable to that
                  class during the most recent fiscal year.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<CAPTION>
         Share Class     Year 1   Year 3         Year 5        Year 10
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   $ 79     $246           $428          $  954
         ---------------------------------------------------------------------
         Administrative   104      325            563           1,248
         ---------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 14
<PAGE>

            PIMCO Select Growth Fund
                                                          Ticker Symbols:
                                                            PCFIX (Inst. Class)
                                                            PCEAX (Admin. Class)
--------------------------------------------------------------------------------
Principal     Investment ObjectiveFund Focus              Approximate
Investments   Seeks long-term     Larger                  Capitalization Range
and           growth of           capitalization          At least $10 billion
Strategies    capital; income     common stocks
              is an incidental                            Dividend Frequency
              consideration       Approximate Number      At least annually
                                  of Holdings
                                  15-25

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of "growth"
            companies with market capitalizations of at least $10 billion at
            the time of investment. The Fund normally invests in the
            securities of 15 to 25 issuers.

             The portfolio manager selects stocks for the Fund using a
            "growth" style. The portfolio manager seeks to identify companies
            with well-defined "wealth creating" characteristics, including
            superior earnings growth (relative to companies in the same
            industry or the market as a whole), high profitability and
            consistent, predictable earnings. In addition, through fundamental
            research, the portfolio manager seeks to identify companies that
            are gaining market share, have superior management and possess a
            sustainable competitive advantage, such as superior or innovative
            products, personnel and distribution systems. The Fund looks to
            sell a stock when the portfolio manager believes that its
            earnings, market sentiment or relative performance are
            disappointing or if an alternative investment is more attractive.
            The Fund is "non-diversified," which means that it invests in a
            relatively small number of issuers.

             The Fund may also invest to a limited degree in other kinds of
            equity securities, including preferred stocks and convertible
            securities. The Fund may invest up to 25% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). The Fund has in the past invested a
            significant portion of its assets in technology or technology-
            related companies, although there is no assurance that it will
            continue to do so in the future. In response to unfavorable market
            and other conditions, the Fund may make temporary investments of
            some or all of its assets in high-quality fixed income securities.
            This would be inconsistent with the Fund's investment objective
            and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>
<S>           <C>                      <C>                       <C>
              .Market Risk             .Focused Investment Risk  .Currency Risk
              .Issuer Risk             .Growth Securities Risk   .Credit Risk
              .Technology Related Risk .Foreign Investment Risk  .Management Risk
</TABLE>
            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Institutional Class shares.
            For periods prior to the inception of Administrative Class shares
            (5/31/95), performance information shown in the Average Annual
            Total Returns table for that class is based on the performance of
            the Fund's Institutional Class shares. The prior Institutional
            Class performance has been adjusted to reflect the actual
            distribution and/or service (12b-1) fees and other expenses paid
            by Administrative Class shares. The performance information on the
            next page for periods prior to April 1, 2000 reflects the Fund's
            advisory fee rate in effect prior to that date (0.57% per annum);
            these results would have been lower had the current advisory fee
            rate (0.60% per annum) then been in effect. Prior to July 1, 1999,
            the Fund had a different sub-adviser and would not necessarily
            have achieved the performance results shown on the next page under
            its current investment management arrangements. In addition, the
            Fund changed its investment objective and policies on April 1,
            2000; the performance results shown on the next page would not
            necessarily have been achieved had the Fund's current objective
            and policies then been in effect. Past performance is no guarantee
            of future results.

15 PIMCO Funds: Multi-Manager Series
<PAGE>


            PIMCO Select Growth Fund (continued)

            Calendar Year Total Returns -- Institutional Class

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 - 9/30/00
                                                                     16.44%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4th Qtr.
                                                            '98      24.90%)
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            '98     -11.38%)

                                    [GRAPH]

                               1995       27.96%
                               1996       17.95%
                               1997       25.32%
                               1998       41.06%
                               1999       24.27%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
                                                                    Fund Inception
                                                     1 Year 5 Years (12/28/94)(/3/)
         --------------------------------------------------------------------------
         <S>                                         <C>    <C>     <C>

         Institutional Class                         24.27% 27.09%  27.06%
         --------------------------------------------------------------------------
         Administrative Class                        23.75% 26.69%  26.67%
         --------------------------------------------------------------------------
         S&P 500 Index(/1/)                          21.04% 28.56%  28.56%
         --------------------------------------------------------------------------
         Lipper Large-Cap Growth Funds Average(/2/)  40.54% 29.41 % 29.41%
         --------------------------------------------------------------------------
</TABLE>
            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Large-Cap Growth Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest primarily in companies with market
                capitalizations of greater than 300% of the dollar-weighted
                median market capitalization of the S&P Mid-Cap 400 Index. It
                does not take into account sales charges.
            (3) The Fund began operations on 12/28/94. Index comparisons begin
                on 12/31/94.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                                   Distribution                 Total Annual
                         Advisory  and/or Service Other         Fund Operating
         Share Class     Fees(/1/) (12b-1) Fees   Expenses(/2/) Expenses
         ---------------------------------------------------------------------
         <S>             <C>       <C>            <C>           <C>

         Institutional   0.60%     None           0.37%         0.97%
         ---------------------------------------------------------------------
         Administrative  0.60      0.25%          0.36          1.21
         ---------------------------------------------------------------------
            (1)  On April 1, 2000, the Fund's advisory fee rate increased by
                 0.03%, to 0.60% per annum.
            (2)  Other Expenses reflects a 0.25% Administrative Fee paid by
                 each class and 0.12% and 0.11% in other expenses attributable
                 to Institutional Class and Administrative Class shares,
                 respectively, during the most recent fiscal year.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<CAPTION>
         Share Class     Year 1    Year 3         Year 5        Year 10
         ---------------------------------------------------------------------
         <S>             <C>       <C>            <C>           <C>
         Institutional   $ 99      $309           $536          $1,190
         ---------------------------------------------------------------------
         Administrative   123       384            665           1,466
         ---------------------------------------------------------------------
</TABLE>
                                                                   Prospectus 16

<PAGE>

            PIMCO Target Fund
                                                       Ticker Symbols: PFTIX
                                                       (Inst. Class)
                                                                 PTADX (Admin.
                                                                 Class)
--------------------------------------------------------------------------------
<TABLE>
<S>           <C>                   <C>                   <C>
Principal     Investment Objective  Fund Focus            Approximate
Investments   Seeks capital         Medium                Capitalization Range
and           appreciation; no      capitalization        Between $1 billion
Strategies    consideration is      common stocks         and $10 billion
              given to income
                                    Approximate Number    Dividend Frequency
                                    of Holdings           At least annually
                                    40-60
</TABLE>
            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of "growth"
            companies with market capitalizations of between $1 billion and
            $10 billion at the time of investment.

             The portfolio managers select stocks for the Fund using a
            "growth" style. The portfolio managers seek to identify companies
            with well-defined "wealth creating" characteristics, including
            superior earnings growth (relative to companies in the same
            industry or the market as a whole), high profitability and
            consistent, predictable earnings. In addition, through fundamental
            research, the portfolio managers seek to identify companies that
            are gaining market share, have superior management and possess a
            sustainable competitive advantage, such as superior or innovative
            products, personnel and distribution systems. The Fund looks to
            sell a stock when the portfolio managers believe that its
            earnings, market sentiment or relative performance are
            disappointing or if an alternative investment is more attractive.

             The Fund may also invest to a limited degree in other kinds of
            equity securities, including preferred stocks and convertible
            securities. The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). The Fund has in the past invested a
            significant portion of its assets in technology or technology-
            related companies, although there is no assurance that it will
            continue to do so in the future.

             In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>
<S>         <C>
            .Market Risk            .Liquidity Risk          .Focused Investment
            .Issuer Risk            .Foreign Investment Risk  Risk
            .Growth Securities Risk .Currency Risk           .Credit Risk
            .Smaller Company Risk   .Technology Related Risk .Management Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart, the information to its
            right and the Average Annual Total Returns table show performance
            of the Fund's Class A shares, which are offered in a different
            prospectus. This is because the Fund has not offered Institutional
            Class or Administrative Class shares for a full calendar year.
            Although Class A, Institutional Class and Administrative Class
            shares would have similar annual returns (because all the Fund's
            shares represent interests in the same portfolio of securities),
            Class A performance would be lower than Institutional Class or
            Administrative Class performance because of the higher sales
            charges and/or expenses paid by Class A shares. The returns in the
            bar chart and the information to its right do not reflect the
            impact of sales charges (loads). If they did, the returns would be
            lower than those shown. Unlike the bar chart, performance figures
            for Class A shares in the Average Annual Total Returns table
            reflect the impact of sales charges. For periods prior to the
            inception of Institutional Class and Administrative Class shares
            (3/31/99), the Average Annual Total Returns table also shows
            estimated historical performance for those classes based on the
            performance of the Fund's Class A shares. The Class A performance
            has been adjusted to reflect that there are no sales charges and
            lower administrative fees and other expenses paid by Institutional
            Class and Administrative Class shares (including no distribution
            and/or service (12b-1) fees paid by Institutional Class shares).
            Prior to March 6, 1999, Fund had a different sub-adviser and would
            not necessarily have achieved the performance results shown on the
            next page under its current investment management arrangements.
            Past performance is no guarantee of future results.

17 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Target Fund (continued)

            Calendar Year Total Returns -- Class A

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 -
                                                             9/30/00 40.50%
                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4th Qtr.
                                                            '99      53.05%)
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            '98     -13.15%)
                                    [GRAPH]

                               1993      -24.52%
                               1994        3.09%
                               1995       30.31%
                               1996       15.68%
                               1997       15.44%
                               1998       23.27%
                               1999       66.25%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>

                                                                    Fund Inception
                                                     1 Year 5 Years (12/17/92)(/3/)
         -----------------------------------------------------------------------
         <S>                                         <C>    <C>     <C>
         Class A                                     57.10% 28.28%  24.13%
         -----------------------------------------------------------------------
         Institutional Class                         66.50% 30.31%  25.66%
         -----------------------------------------------------------------------
         Administrative Class                        66.28% 30.02%  25.37%
         -----------------------------------------------------------------------
         S&P Mid-Cap 400 Index(/1/)                  14.73% 23.05%  17.55%
         -----------------------------------------------------------------------
         Lipper Multi-Cap Growth Funds Average(/2/)  57.98% 28.51%  20.93%
         -----------------------------------------------------------------------
</TABLE>
            (1)  The S&P Mid-Cap 400 Index is an unmanaged index of middle
                 capitalization U.S. stocks. It is not possible to invest
                 directly in the index.
            (2)  The Lipper Multi-Cap Growth Funds Average is a total return
                 performance average of funds tracked by Lipper Analytical
                 Services, Inc. that invest in companies with a variety of
                 capitalization ranges without concentrating in any one market
                 capitalization range over an extended period of time. It does
                 not take into account sales charges.
            (3)  The Fund began operations on 12/17/92. Index comparisons begin
                 on 12/31/92.
--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)    None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   0.55%    None           0.26%         0.81%
         ---------------------------------------------------------------------
         Administrative  0.55     0.25%          0.26          1.06
         ---------------------------------------------------------------------
</TABLE>
            (1)  Other Expenses reflects a 0.25% Administrative Fee paid by
                 the class and 0.01% in other expenses attributable to that
                 class during the most recent fiscal year.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.
<TABLE>
<CAPTION>
         Share Class     Year 1   Year 3         Year 5        Year 10
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   $ 83     $259           $450          $1,002
         ---------------------------------------------------------------------
         Administrative   108      337            585           1,294
         ---------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 18
<PAGE>

            PIMCO Opportunity Fund
                                            Ticker Symbols: POFIX (Inst. Class)
                                                            POADX (Admin. Class)
--------------------------------------------------------------------------------
Principal     Investment Objective    Fund Focus           Approximate
Investments   Seeks capital           Smaller              Capitalization Range
and           appreciation; no        capitalization       Between $100 million
Strategies    consideration is        common stocks        and $2 billion
              given to income
                                      Approximate Number   Dividend Frequency
                                      of Holdings 60-100   At least annually

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of "growth"
            companies with market capitalizations of between $100 million and
            $2 billion at the time of investment.

             The portfolio manager selects stocks for the Fund using a
            "growth" style. The portfolio manager seeks to identify companies
            with well-defined "wealth creating" characteristics, including
            superior earnings growth (relative to companies in the same
            industry or the market as a whole), high profitability and
            consistent, predictable earnings. In addition, through fundamental
            research, the portfolio manager seeks to identify companies that
            are gaining market share, have superior management and possess a
            sustainable competitive advantage, such as superior or innovative
            products, personnel and distribution systems. The Fund looks to
            sell a stock when the portfolio manager believes that its
            earnings, market sentiment or relative performance are
            disappointing or if an alternative investment is more attractive.

             The Fund may also invest to a limited degree in other kinds of
            equity securities, including preferred stocks and convertible
            securities. The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). The Fund may invest a substantial
            portion of its assets in the securities of smaller capitalization
            companies and securities issued in initial public offerings
            (IPOs). The Fund has in the past invested a significant portion of
            its assets in technology or technology-related companies, although
            there is no assurance that it will continue to do so in the
            future.

             In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

             . Market Risk            . IPO Risk           . Technology Related
             . Issuer Risk            . Liquidity Risk       Risk
             . Growth Securities Risk . Foreign Investment . Focused Investment
             . Smaller Company Risk     Risk                 Risk
                                      . Currency Risk      . Credit Risk
                                                           . Management Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart, the information to its
            right and the Average Annual Total Returns table show performance
            of the Fund's Class C shares, which are offered in a different
            prospectus. This is because the Fund has not offered Institutional
            Class or Administrative Class shares for a full calendar year.
            Although Class C, Institutional Class and Administrative Class
            shares would have similar annual returns (because all the Fund's
            shares represent interests in the same portfolio of securities),
            Class C performance would be lower than Institutional Class or
            Administrative Class performance because of the sales charges and
            higher expenses paid by Class C shares. The returns in the bar
            chart and the information to its right do not reflect the impact
            of sales charges (loads). If they did, the returns would be lower
            than those shown. Unlike the bar chart, performance figures for
            Class C shares in the Average Annual Total Returns table reflect
            the impact of sales charges. For periods prior to the inception of
            Institutional Class and Administrative Class shares (3/31/99), the
            Average Annual Total Returns table also shows estimated historical
            performance for those classes based on the performance of the
            Fund's Class C shares. The Class C performance has been adjusted
            to reflect that there are no sales charges and lower distribution
            and/or service (12b-1) fees (if any), administrative fees and
            other expenses paid by Institutional Class and Administrative
            Class shares. Prior to March 6, 1999, the Fund had a different
            sub-adviser and would not necessarily have achieved the
            performance results shown on the next page under its current
            investment management arrangements. Past performance is no
            guarantee of future results.

19 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Opportunity Fund (continued)

            Calendar Year Total Returns -- Class C

More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 - 9/30/00
                                                                      5.06%
                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4th Qtr.
                                                            '99)          45.70%
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            '98)         -25.78%

                                   [GRAPH]

                               1990     -7.34%
                               1991     68.08%
                               1992     28.46%
                               1993     36.16%
                               1994     -4.74%
                               1995     41.43%
                               1996     11.54%
                               1997     -4.75%
                               1998      1.29%
                               1999     63.99%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
         <S>                                         <C>    <C>     <C>      <C>
                                                                             Fund Inception
                                                     1 Year 5 Years 10 Years (2/24/84)(/3/)
            -------------------------------------------------------------------------------
         Class C                                     62.99% 20.09%  20.55%    18.93%
            -------------------------------------------------------------------------------
         Institutional Class                         64.93% 21.34%  21.86%    20.25%
            -------------------------------------------------------------------------------
         Administrative Class                        64.59% 21.04%  21.57%    19.96%
            -------------------------------------------------------------------------------
         Russell 2000 Index(/1/)                     21.25% 16.69%  13.40%    12.49%
            -------------------------------------------------------------------------------
         Lipper Small-Cap Growth Funds Average(/2/)  61.78% 22.83%  18.12%    15.00%
            -------------------------------------------------------------------------------
</TABLE>
            (1)  The Russell 2000 Index is a capitalization weighted broad
                 based index of 2,000 small capitalization U.S. stocks. It is
                 not possible to invest directly in the index.
            (2) The Lipper Small-Cap Growth Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest primarily in companies with market
                capitalizations of less than 250% of the dollar-weighted median
                market capitalization of the S&P Small-Cap 600 Index. It does
                not take into account sales charges.
            (3) The Fund began operations on 2/24/84. Index comparisons begin
                on 2/29/84.
--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)
                                                          None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
         <S>             <C>      <C>            <C>           <C>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
            -----------------------------------------------------------------
         Institutional   0.65%    None           0.26%         0.91%
            -----------------------------------------------------------------
         Administrative  0.65     0.25%          0.26          1.16
            -----------------------------------------------------------------
            (1)  Other Expenses reflects a 0.25% Administrative Fee paid by
                 the class and 0.01% in other expenses attributable to that
                 class during the most recent fiscal year.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and that the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<CAPTION>
         Share Class     Year 1   Year 3         Year 5        Year 10
            -----------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   $ 93     $290           $504          $1,120
            -----------------------------------------------------------------
         Administrative   118      368            638           1,409
            -----------------------------------------------------------------
</TABLE>

                                                                   Prospectus 20
<PAGE>

            PIMCO Innovation Fund
                                                       Ticker Symbols:
                                                           PIFIX (Inst. Class)
                                                           PIADX (Admin. Class)
--------------------------------------------------------------------------------
Principal     Investment Objective  Fund Focus            Approximate
Investments   Seeks capital         Common stocks of      Capitalization Range
and           appreciation; no      technology-           More than $200
Strategies    consideration is      related companies     million
              given to income
                                    Approximate Number    Dividend Frequency
                                    of Holdings           At least annually
                                    40

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            which utilize new, creative or different, or "innovative,"
            technologies to gain a strategic competitive advantage in their
            industry, as well as companies that provide and service those
            technologies. The Fund identifies its investment universe of
            technology-related companies primarily by reference to
            classifications made by independent firms, such as Standard &
            Poor's (for example, companies classified as "Information
            Technology" companies), and by identifying companies that derive a
            substantial portion of their revenues from the manufacture, sale
            and/or service of technological products. Although the Fund
            emphasizes companies which utilize technologies, it is not
            required to invest exclusively in companies in a particular
            business sector or industry.

             The portfolio manager selects stocks for the Fund using a
            "growth" style. The portfolio manager seeks to identify
            technology-related companies with well-defined "wealth creating"
            characteristics, including superior earnings growth (relative to
            companies in the same industry or the market as a whole), high
            profitability and consistent, predictable earnings. In addition,
            through fundamental research, the portfolio manager seeks to
            identify companies that are gaining market share, have superior
            management and possess a sustainable competitive advantage, such
            as superior or innovative products, personnel and distribution
            systems. The Fund looks to sell a stock when the portfolio manager
            believes that earnings or market sentiment are disappointing, if
            the company does not meet or exceed consensus estimates on
            revenues and/or earnings or if an alternative investment is more
            attractive.

             Although the Fund invests principally in common stocks, the Fund
            may also invest in other kinds of equity securities, including
            preferred stocks and convertible securities. The Fund may invest a
            substantial portion of its assets in the securities of smaller
            capitalization companies. The Fund may invest up to 15% of its
            assets in foreign securities, except that it may invest without
            limit in American Depository Receipts (ADRs). In response to
            unfavorable market and other conditions, the Fund may make
            temporary investments of some or all of its assets in high-quality
            fixed income securities. This would be inconsistent with the
            Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              .Market Risk             .Smaller Company Risk    .Currency Risk
              .Issuer Risk             .Liquidity Risk          .Credit Risk
              .Focused Investment Risk .Foreign Investment Risk .Management Risk
              .Growth Securities Risk  .Technology Related Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart, the information to its
            right and the Average Annual Total Returns table show performance
            of the Fund's Class A shares, which are offered in a different
            prospectus. This is because the Fund has not offered Institutional
            Class or Administrative Class shares for a full calendar year.
            Although Class A, Institutional Class and Administrative Class
            shares would have similar returns (because all the Fund's shares
            represent interests in the same portfolio of securities), Class A
            performance would be lower than Institutional Class or
            Administrative Class performance because of the higher sales
            charges and/or expenses paid by Class A shares. The returns in the
            bar chart and the information to its right do not reflect the
            impact of sales charges (loads). If they did, the returns would be
            lower than those shown. Unlike the bar chart, performance figures
            for Class A shares in the Average Annual Total Returns table
            reflect the impact of sales charges. For periods prior to the
            inception of Institutional Class shares (3/5/99) and for all
            periods shown for Administrative Class shares (which were not
            offered during those periods), the Average Annual Total Returns
            table also shows estimated historical performance for those
            classes based on the performance of the Fund's Class A shares. The
            Class A performance has been adjusted to reflect that there are no
            sales charges and lower administrative fees and other expenses
            paid by Institutional Class and Administrative Class shares
            (including no distribution and/or service (12b-1) fees paid by
            Institutional Class shares). Prior to March 6, 1999, the Fund had
            a different sub-adviser and would not necessarily have achieved
            the performance results shown on the next page under its current
            investment management arrangements. Past performance is no
            guarantee of future results.

21 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Innovation Fund (continued)


            Calendar Year Total Returns -- Class A

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 -
                                                             9/30/00      21.31%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4th Qtr.
                                                            '99)          80.12%
                                                            --------------------
                                                            Lowest (1st Qtr.
                                                            '97)         -12.56%
                                   [GRAPH]

                                1995    45.33%
                                1996    23.60%
                                1997     9.03%
                                1998    79.41%
                                1999   139.40%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                                        Fund Inception
                                    1 Year            5 Years           (12/22/94)(/3/)
         ------------------------------------------------------------------------------
         <S>                        <C>               <C>               <C>
         Class A                    126.24%           51.38%            51.01%
         ------------------------------------------------------------------------------
         Institutional Class        140.65%           53.74%            53.36%
         ------------------------------------------------------------------------------
         Administrative Class       139.75%           53.33%            52.94%
         ------------------------------------------------------------------------------
         S&P 500 Index(/1/)          21.04%           28.56%            28.56%
         ------------------------------------------------------------------------------
         Lipper Science and Technology
          Fund Average(/2/)
                                    135.19%           41.03%            41.03%
         ------------------------------------------------------------------------------
</TABLE>
            (1)  The S&P 500 Index is an unmanaged index of large
                 capitalization common stocks. It is not possible to invest
                 directly in the index.
            (2)  The Lipper Science and Technology Fund Average is a total
                 return performance average of funds tracked by Lipper
                 Analytical Services, Inc. that invest 65% of their assets in
                 science and technology stocks. It does not take into account
                 sales charges.
            (3)  The Fund began operations on 12/22/94. Index comparisons begin
                 on 12/31/94.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)   None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   0.65%    None           0.25%         0.90%
         ---------------------------------------------------------------------
         Administrative  0.65     0.25%          0.25          1.15
         ---------------------------------------------------------------------
</TABLE>
            (1)  Other Expenses reflects a 0.25% Administrative Fee paid by
                 the class.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.
<TABLE>
<CAPTION>
         Share Class     Year 1   Year 3         Year 5        Year 10
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   $ 92     $287           $498          $1,108
         ---------------------------------------------------------------------
         Administrative   117      365            633           1,398
         ---------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 22
<PAGE>

            PIMCO Global Innovation Fund
                                                         Ticker Symbols:
                                                         N/A (Inst. Class)
                                                         N/A (Admin. Class)
--------------------------------------------------------------------------------
Principal     Investment Objective   Fund Focus           Approximate
Investments   Seeks capital          Common stocks of     Capitalization Range
and           appreciation; no       U.S. and non-U.S.    More than $200 million
Strategies    consideration is       technology-related
              given to income        companies            Dividend Frequency
                                                          At least annually
                                     Approximate Number
                                     of Holdings
                                     30-60

              The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of U.S. and
            non-U.S. companies which utilize new, creative or different, or
            "innovative," technologies to gain a strategic competitive
            advantage in their industry, as well as companies that provide and
            service those technologies. The Fund identifies its investment
            universe of technology-related companies primarily by reference to
            classifications made by independent firms, such as Standard &
            Poor's (for example, companies classified as "Information
            Technology" companies), and by identifying companies that derive a
            substantial portion of their revenues from the manufacture, sale
            and/or service of technological products. Although the Fund
            emphasizes companies which utilize technologies, it is not
            required to invest exclusively in a particular business sector or
            industry.

              The portfolio manager selects stocks for the Fund using a
            "growth" style. The portfolio manager seeks to identify
            technology-related companies with well-defined "wealth creating"
            characteristics, including superior earnings growth (relative to
            companies in the same industry or the market as a whole), high
            profitability and consistent, predictable earnings. In addition,
            through fundamental research, the portfolio manager seeks to
            identify companies that are gaining market share, have superior
            management and possess a sustainable competitive advantage, such
            as superior or innovative products, personnel and distribution
            systems. The Fund looks to sell a stock when the portfolio manager
            believes that earnings or market sentiment are disappointing, if
            the company does not meet or exceed consensus estimates on
            revenues and/or earnings or if an alternative investment is more
            attractive.

              Although the Fund invests principally in common stocks, the Fund
            may also invest in other types of equity securities, including
            preferred stocks and convertible securities. The Fund may invest a
            substantial portion of its assets in the securities of smaller
            capitalization companies and securities issued in initial public
            offerings (IPOs). The Fund will invest in the securities of
            issuers located in at least three countries (one of which may be
            the United States). Although the Fund invests primarily in
            securities traded principally in the securities markets of
            developed countries, the Fund has no other prescribed limits on
            geographic asset distribution and may invest in any foreign
            securities market in the world, including in developing, or
            "emerging," markets. The Fund may utilize foreign currency
            exchange contracts and derivative instruments (such as stock index
            futures contracts), primarily for risk management or hedging
            purposes.

              In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

            .Market Risk             .Smaller Company Risk  .Currency Risk
            .Issuer Risk             .Liquidity Risk        .Focused Investment
            .Technology Related      .Derivatives Risk       Risk
             Risk                    .Foreign Investment    .Leveraging Risk
            .Growth Securities Risk   Risk                  .Credit Risk
            .IPO Risk                .Emerging Markets Risk .Management Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance
Information
            The Fund commenced operations in December 1999 and does not yet
            have a full calendar year of performance. Thus, no bar chart or
            Average Annual Total Returns table is included for the Fund.

23 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Global Innovation Fund (continued)

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
         <S>             <C>      <C>            <C>           <C>            <C>            <C>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating Expense        Net Fund
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses       Reduction(/2/) Operating Expenses(/2/)
            --------------------------------------------------------------------------------------------------------
         Institutional   1.00%    None           0.47%         1.47%          (0.07)%        1.40%
            --------------------------------------------------------------------------------------------------------
         Administrative  1.00     0.25%          0.47          1.72           (0.07)         1.65
            --------------------------------------------------------------------------------------------------------
</TABLE>
            (1) Other Expenses reflects a 0.40% Administrative Fee paid by the
                class and 0.07% in organizational expenses ("Organizational
                Expenses") attributable to the class during the most recent
                fiscal year.
            (2) Net Expenses reflect the effect of a contractual agreement by
                PIMCO Advisors to waive, reduce or reimburse its
                Administrative Fee for each class to the extent Annual Fund
                Operating Expenses exceeded, due to the payment of
                organizational and certain other expenses, 1.40% for
                Institutional Class shares and 1.65% for Administrative Class
                shares during the Fund's most recent (initial) fiscal year.
                Under the Expense Limitation Agreement, PIMCO Advisors may
                recoup these waivers and reimbursements (which do not continue
                after the Fund's initial fiscal year) in future periods, not
                exceeding three years, provided total expenses, including such
                recoupment, do not exceed the annual expense limit.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
         Share Class           Year 1             Year 3             Year 5             Year 10
            -----------------------------------------------------------------------------------
         <S>                   <C>                <C>                <C>                <C>
         Institutional          $142               $443               $764              $1,674
            -----------------------------------------------------------------------------------
         Administrative          168                520                895               1,948
            -----------------------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 24

<PAGE>

            PIMCO Allianz Select International Fund

                                                         Ticker Symbols:
                                                         N/A (Inst. Class)
                                                         N/A (Admin. Class)
--------------------------------------------------------------------------------
Principal     Investment Objective Fund Focus             Approximate
Investments   Seeks capital        Common stock of        Capitalization Range
and           appreciation         non-U.S. issuers       More than $1 billion
Strategies
                                   Approximate Number     Dividend Frequency
                                   of Holdings            At least annually
                                   30-60
            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in an international portfolio
            of common stocks and other equity securities of companies located
            outside of the United States. Although the Fund normally invests
            in issuers from at least five different countries, it may at times
            invest in fewer than five countries, or even a single country. The
            Fund typically invests in approximately 30 to 60 stocks. Although
            the Fund invests primarily in developed market countries, it may
            also invest in developing, or "emerging," markets. The Fund has no
            other limits on geographic asset distribution and may invest in
            any foreign securities market in the world. The Fund may also
            invest in securities of foreign issuers traded on U.S. securities
            markets, but will normally not invest in U.S. issuers. The Fund
            invests most of its assets in foreign securities which trade in
            currencies other than the U.S. dollar and may invest directly in
            foreign currencies.

             The portfolio managers select securities for the Fund using a
            research-driven "bottom-up" approach that seeks to utilize the
            Sub-Adviser's global research capabilities to identify companies
            with above-average long-term growth prospects and attractive
            valuations and that possess a sustainable competitive advantage,
            such as superior or innovative products, personnel and
            distribution systems. The portfolio manager seeks to select those
            stocks with the best long-term performance expectations, using a
            broad range of company fundamentals, such as long-term growth
            prospects, price-to-earnings ratios and other valuation measures,
            dividend and profit growth, balance sheet strength and return on
            assets. The portfolio managers sell stocks in order to adjust or
            rebalance the Fund's portfolio and to replace companies with
            weakening fundamentals.

             The Fund may invest a substantial portion of its assets in the
            securities of small and medium capitalization companies. The Fund
            may utilize foreign currency exchange contracts and derivative
            instruments (such as stock index futures contracts), primarily for
            portfolio management and hedging purposes. The Fund may to a
            limited degree invest in equity securities other than common
            stocks (such as equity-linked securities, preferred stocks and
            convertible securities) and may invest up to 10% of its assets in
            other investment companies. In response to unfavorable market and
            other conditions, the Fund may make temporary investments of some
            or all of its assets in foreign and domestic fixed income
            securities and in equity securities of U.S. issuers. This would be
            inconsistent with the Fund's investment objective and principal
            strategies.

--------------------------------------------------------------------------------
Principal Risks
            Among the principal risks of investing in the Fund, which could
            adversely affect its net asset value, yield and total return, are:

              .Foreign Investment Risk
                                     .Growth Securities Risk.Focused Investment
              .Emerging Market Risk  .Value Securities Risk Risk
              .Currency Risk         .Smaller Company Risk  .Leveraging Risk
              .Market Risk           .Liquidity Risk        .Credit Risk
              .Issuer Risk           .Derivatives Risk      .Management Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Institutional Class shares.
            The Fund's Administrative Class shares do not have a performance
            history for the time periods shown. Performance information shown
            in the Average Annual Total Returns table for Administrative Class
            shares is based on the performance of the Fund's Institutional
            Class shares, adjusted to reflect the actual distribution and/or
            service (12b-1) fees and other expenses paid by Administrative
            Class shares. The performance information on the next page for
            periods prior to May 8, 2000 reflects the Fund's advisory fee rate
            in effect prior to that date (0.85% per annum), which is higher
            than the current rate (0.75% per annum). Prior to November 1,
            2000, the Fund had different sub-advisers and would not
            necessarily have achieved the performance results shown on the
            next page under its current investment management arrangements. In
            addition, the Fund changed its investment objectives and policies
            on November 1, 2000; the performance results shown on the next
            page would not necessarily have been achieved had the Fund's
            current objectives and policies then been in effect. Past
            performance is no guarantee of future results.

25 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Allianz Select International Fund (continued)

            Calendar Year Total Returns -- Institutional Class


                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 -
                                                            9/30/0    -14.71%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4th Qtr.
                                                            '99)          47.11%
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            '98)         -17.79%
                                    [GRAPH]

                                 1998   39.40%
                                 1999  109.71%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
         <S>                                        <C>           <C>
                                                                  Fund Inception
                                                    1 Year        (12/31/97)(/3/)
         ------------------------------------------------------------------------
         Institutional Class                        109.71%       70.98%
         ------------------------------------------------------------------------
         Administrative Class                       109.22%       70.57%
         ------------------------------------------------------------------------
         MSCI EAFE Index(/1/)                        27.30%       23.77%
         ------------------------------------------------------------------------
         Lipper International Fund Average(/2/)      40.76%       25.87%
         ------------------------------------------------------------------------
</TABLE>
            (1)  The Morgan Stanley Capital International EAFE (Europe,
                 Australasia, Far East) ("MSCI EAFE") Index is a widely
                 recognized, unmanaged index of issuers in countries of
                 Europe, Australia and the Far East. It is not possible to
                 invest directly in the index.
            (2)  The Lipper International Fund Average is a total return
                 performance average of funds tracked by Lipper Analytical
                 Services, Inc. that invest their assets in securities whose
                 primary trading markets are outside of the United States. It
                 does not take into account sales charges.
            (3)  The Fund began operations on 12/31/97. Index comparisons begin
                 on 12/31/97.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
         <S>             <C>      <C>            <C>           <C>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/2/) Expenses
         ---------------------------------------------------------------------
         Institutional   0.75%    None           0.50%         1.25%
         ---------------------------------------------------------------------
         Administrative  0.75     0.25%          0.50          1.50
         ---------------------------------------------------------------------
            (1)  On May 8, 2000, the Fund's Advisory Fee rate decreased by
                 0.10%, to 0.75% per annum.
            (2)  Other Expenses reflects a 0.50% Administrative Fee paid by
                 the class.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<CAPTION>
         Share Class     Year 1   Year 3         Year 5        Year 10
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   $127     $397           $686          $1,511
         ---------------------------------------------------------------------
         Administrative   153      474            818           1,791
         ---------------------------------------------------------------------
</TABLE>
                                                                   Prospectus
                                                                              26
<PAGE>

            PIMCO Mega-Cap Fund
                                                         Ticker Symbols:
                                                         N/A (Inst. Class)
                                                         N/A (Admin. Class)
--------------------------------------------------------------------------------
Principal     Investment         Fund Focus               Approximate
Investments   Objective          Very large               Capitalization Range
and           Seeks long-term    capitalization           The largest 250
Strategies    growth of capital  common stocks            publicly traded
                                                          companies (in terms
                                 Approximate Number       of market
                                 of Holdings              capitalizations)
                                 40-60
                                                          Dividend Frequency
                                                          At least annually

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with very large market capitalizations that have improving
            fundamentals (based on growth criteria) and whose stock is
            reasonably valued by the market (based on value criteria).

             In making investment decisions for the Fund, the portfolio
            management team considers the 250 largest publicly traded
            companies (in terms of market capitalization) in the U.S. The team
            screens the stocks in this universe for a series of growth
            criteria, such as dividend growth, earnings growth, relative
            growth of earnings over time (earnings momentum) and the company's
            history of meeting earnings targets (earnings surprise), and also
            value criteria, such as price-to-earnings, price-to-book and
            price-to-cash flow ratios. The team then selects individual stocks
            by subjecting the top portion of the stocks in the screened
            universe to a rigorous analysis of company factors, such as
            strength of management, competitive industry position, and
            business prospects, and financial statement data, such as
            earnings, cash flows and profitability. The team may interview
            company management in making investment decisions. The Fund's
            capitalization criteria applies at the time of investment.

             The portfolio management team rescreens the universe frequently
            and seeks to consistently achieve a favorable balance of growth
            and value characteristics for the Fund. The team looks to sell a
            stock when it falls below the median ranking, has negative
            earnings surprises, or shows poor price performance relative to
            all stocks in the Fund's capitalization range or to companies in
            the same business sector. A stock may also be sold if its
            weighting in the portfolio becomes excessive (normally above 2% of
            the Fund's investments). The Fund has in the past invested a
            significant portion of its assets in technology or technology-
            related companies, although there is no assurance that it will
            continue to do so in the future.

             The Fund intends to be fully invested in common stock (aside from
            certain cash management practices) and will not make defensive
            investments in response to unfavorable market and other
            conditions.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              .Market Risk           .Growth Securities Risk .Focused Investment
              .Issuer Risk           .Credit Risk             Risk
              .Value Securities Risk                         .Management Risk
                                     .Technology Related Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance
Information
            The Fund commenced operations in September 1999 and does not yet
            have a full calendar year of performance. Thus, no bar chart or
            Average Annual Total Returns table is included for the Fund.

27 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Mega-Cap Fund (continued)

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>

                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating Expense        Net Fund
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses       Reduction(/2/) Operating Expenses(/2/)
         --------------------------------------------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>            <C>            <C>
         Institutional   0.45%    None           0.81%         1.26%          (0.55)%        0.71%
         --------------------------------------------------------------------------------------------------------
         Administrative  0.45     0.25%          0.81          1.51           (0.55)         0.96
         --------------------------------------------------------------------------------------------------------
</TABLE>
            (1) Other Expenses reflects a 0.25% Administrative Fee paid by
                each class, 0.55% in organizational expenses ("Organizational
                Expenses") attributable to each class during the most recent
                fiscal year, and 0.01% in other expenses attributable to
                Institutional Class shares during the most recent fiscal year,
                and estimated to be attributable to Administrative Class
                shares during the current fiscal year.
            (2) Net Expenses reflect the effect of a contractual agreement by
                PIMCO Advisors to waive, reduce or reimburse its
                Administrative Fee for each class to the extent Annual Fund
                Operating Expenses exceeded, due to the payment of
                organizational and certain other expenses, 0.70% for
                Institutional Class shares and 0.95% for Administrative Class
                shares during the Fund's most recent (initial) fiscal year.
                Under the Expense Limitation Agreement, PIMCO Advisors may
                recoup these waivers and reimbursements (which do not continue
                after the Fund's initial fiscal year) in future periods, not
                exceeding three years, provided total expenses, including such
                recoupment, do not exceed the annual expense limit.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
         Share Class           Year 1             Year 3             Year 5             Year 10
         -----------------------------------------------------------------------------------
         <S>                   <C>                <C>                <C>                <C>
         Institutional          $72                $225               $390              $  858
         -----------------------------------------------------------------------------------
         Administrative          98                 303                524               1,145
         -----------------------------------------------------------------------------------
</TABLE>


                                                                   Prospectus 28
<PAGE>

            PIMCO Capital Appreciation Fund
                                                         Ticker Symbols:
                                                         PAPIX (Inst. Class)
                                                         PICAX (Admin. Class)
--------------------------------------------------------------------------------
Principal     Investment         Fund Focus               Approximate
Investments   Objective          Larger                   Capitalization Range
and           Seeks growth of    capitalization           At least $1 billion
Strategies    capital            common stocks
                                                          Dividend Frequency
                                 Approximate Number       At least annually
                                 of Holdings
                                 60-100

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with larger market capitalizations that have improving
            fundamentals (based on growth criteria) and whose stock is
            reasonably valued by the market (based on value criteria).

             In making investment decisions for the Fund, the portfolio
            management team considers the 1,000 largest publicly traded
            companies (in terms of market capitalization) in the U.S. The team
            screens the stocks in this universe for a series of growth
            criteria, such as dividend growth, earnings growth, relative
            growth of earnings over time (earnings momentum) and the company's
            history of meeting earnings targets (earnings surprise), and also
            value criteria, such as price-to-earnings, price-to-book and
            price-to-cash flow ratios. The team then selects individual stocks
            by subjecting the top 10% of the stocks in the screened universe
            to a rigorous analysis of company factors, such as strength of
            management, competitive industry position, and business prospects,
            and financial statement data, such as earnings, cash flows and
            profitability. The team may interview company management in making
            investment decisions. The Fund's capitalization criteria applies
            at the time of investment.

             The portfolio management team rescreens the universe frequently
            and seeks to consistently achieve a favorable balance of growth
            and value characteristics for the Fund. The team looks to sell a
            stock when it falls below the median ranking, has negative
            earnings surprises, or shows poor performance relative to all
            stocks in the Fund's capitalization range or to companies in the
            same business sector. A stock may also be sold if its weighting in
            the portfolio becomes excessive (normally above 2% of the Fund's
            investments).

             The Fund intends to be fully invested in common stock (aside from
            certain cash management practices) and will not make defensive
            investments in response to unfavorable market and other
            conditions.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              .Market Risk         .Growth Securities Risk  .Credit Risk
              .Issuer Risk         .Focused Investment Risk .Management Risk
              .Value Securities Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Institutional Class shares.
            For periods prior to the inception of Administrative Class shares
            (7/31/96), performance information shown in the Average Annual
            Total Returns table for that class is based on the performance of
            the Fund's Institutional Class shares. The prior Institutional
            Class performance has been adjusted to reflect the actual
            distribution and/or service (12b-1) fees and other expenses paid
            by Administrative Class shares. Past performance is no guarantee
            of future results.

29PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Capital Appreciation Fund (continued)

            Calendar Year Total Returns -- Institutional Class


                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 -
                                                             9/30/00      17.70%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4th Qtr.
                                                            '99)          23.43%
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            '98)         -14.16%

                                    [GRAPH]

                              1992         7.51%
                              1993        17.70%
                              1994        -4.26%
                              1995        37.14%
                              1996        26.79%
                              1997        34.22%
                              1998        17.59%
                              1999        22.30%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>

                                                                  Fund Inception
                                                   1 Year 5 Years (3/8/91)(/3/)
         -----------------------------------------------------------------------
         <S>                                       <C>    <C>     <C>
         Institutional Class                       22.30% 27.40%  20.03%
         -----------------------------------------------------------------------
         Administrative Class                      21.92% 27.08%  19.72%
         -----------------------------------------------------------------------
         S&P 500 Index(/1/)                        21.04% 28.56%  19.75%
         -----------------------------------------------------------------------
         Lipper Multi-Cap Core Funds Average(/2/)  20.63% 23.01%  17.15%
         -----------------------------------------------------------------------
</TABLE>
            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Multi-Cap Core Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest in companies with a variety of
                capitalization ranges without concentrating in any one market
                capitalization range over an extended period of time. It does
                not take into account sales charges.
            (3) The Fund began operations on 3/8/91. Index comparisons begin
                on 2/28/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund
            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   0.45%    None           0.26%         0.71%
         ---------------------------------------------------------------------
         Administrative  0.45     0.25%          0.26          0.96
         ---------------------------------------------------------------------
</TABLE>
            (1) Other Expenses reflects a 0.25% Administrative Fee paid by the
                class and 0.01% in other expenses attributable to that class
                during the most recent fiscal year.


            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.
<TABLE>
<CAPTION>
         Share Class     Year 1   Year 3         Year 5        Year 10
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   $73      $227           $395          $  883
         ---------------------------------------------------------------------
         Administrative   98       306            531           1,178
         ---------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 30
<PAGE>

            PIMCO Mid-Cap Fund
                                                            Ticker Symbols:
                                                            PMGIX (Inst. Class)
                                                            PMCGX (Admin. Class)
--------------------------------------------------------------------------------
Principal     Investment         Fund Focus               Approximate
Investments   Objective          Medium                   Capitalization
and           Seeks growth       capitalization           Range
Strategies    of capital         common stocks            More than $500
                                                          million (excluding
                                 Approximate Number       the largest 200
                                 of Holdings              companies)
                                 60-100
                                                          Dividend Frequency
                                                          At least annually

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with medium market capitalizations that have improving
            fundamentals (based on growth criteria) and whose stock is
            reasonably valued by the market (based on value criteria).

             In making investment decisions for the Fund, the portfolio
            management team considers companies in the U.S. market with market
            capitalizations of more than $500 million, but excluding the 200
            largest capitalization companies. The team screens the stocks in
            this universe for a series of growth criteria, such as dividend
            growth, earnings growth, relative growth of earnings over time
            (earnings momentum) and the company's history of meeting earnings
            targets (earnings surprise), and also value criteria, such as
            price-to-earnings, price-to-book and price-to-cash flow ratios.
            The team then selects individual stocks by subjecting the top 10%
            of the stocks in the screened universe to a rigorous analysis of
            company factors, such as strength of management, competitive
            industry position, and business prospects, and financial statement
            data, such as earnings, cash flows and profitability. The team may
            interview company management in making investment decisions. The
            Fund's capitalization criteria applies at the time of investment.

             The portfolio management team rescreens the universe frequently
            and seeks to consistently achieve a favorable balance of growth
            and value characteristics for the Fund. The team looks to sell a
            stock when it falls below the median ranking, has negative
            earnings surprises, or shows poor price performance relative to
            all stocks in the Fund's capitalization range or to companies in
            the same business sector. A stock may also be sold if its
            weighting in the portfolio becomes excessive (normally above 2% of
            the Fund's investments).

             The Fund intends to be fully invested in common stock (aside from
            certain cash management practices) and will not make defensive
            investments in response to unfavorable market and other
            conditions.

--------------------------------------------------------------------------------
Principal Risks
            Among the principal risks of investing in the Fund, which could
            adversely affect its net asset value, yield and total return, are:

      .Market Risk           .Growth Securities Risk.Focused Investment Risk
      .Issuer Risk           .Smaller Company Risk  .Credit Risk
      .Value Securities Risk .Liquidity Risk        .Management Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Institutional Class shares.
            For periods prior to the inception of Administrative Class shares
            (11/30/94), performance information shown in the Average Annual
            Total Returns table for that class is based on the performance of
            the Fund's Institutional Class shares. The prior Institutional
            Class performance has been adjusted to reflect the actual
            distribution and/or service (12b-1) fees and other expenses paid
            by Administrative Class shares. Past performance is no guarantee
            of future results.

31 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Mid-Cap Fund (continued)

            Calendar Year Total Returns -- Institutional Class

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 -
                                                            9/30/00       28.24%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4th Qtr.
                                                            '99)          23.10%
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            '98)         -14.40%

                                    [GRAPH]

                                1992      9.18%
                                1993     15.77%
                                1994     -2.36%
                                1995     37.29%
                                1996     23.36%
                                1997     34.17%
                                1998      7.93%
                                1999     12.98%


                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
         <S>                          <C>      <C>       <C>              <C>
                                                         Fund Inception
                                      1 Year   5 Years   (3/8/91)(/3/)
         --------------------------------------------------------------------
         Institutional Class          12.98%   22.61%    17.59%
         --------------------------------------------------------------------
         Administrative Class         12.67%   22.33%    17.31%
         --------------------------------------------------------------------
         Russell Mid-Cap Index(/1/)   18.23%   21.85%    17.31%
         --------------------------------------------------------------------
         Lipper Mid-Cap Core Funds
          Average(/2/)
                                      29.16%   21.12%    16.55%
         --------------------------------------------------------------------
</TABLE>
            (1)  The Russell Mid-Cap Index is an unmanaged index of middle
                 capitalization U.S. stocks. It is not possible to invest
                 directly in the index.
            (2)  The Lipper Mid-Cap Funds Average is a total return performance
                 average of funds tracked by Lipper Analytical Services, Inc.
                 that invest primarily in companies with market capitalizations
                 of less than 300% of the dollar-weighted median market
                 capitalization of the S&P Mid-Cap 400 Index. It does not take
                 into account sales charges.
            (3)  The Fund began operations on 8/26/91. Index comparisons begin
                 on 8/31/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
         <S>             <C>      <C>            <C>           <C>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
         ---------------------------------------------------------------------
         Institutional   0.45%    None           0.26%         0.71%
         ---------------------------------------------------------------------
         Administrative  0.45     0.25%          0.26          0.96
         ---------------------------------------------------------------------
            (1)  Other Expenses reflects a 0.25% Administrative Fee paid by
                 the class and 0.01% in other expenses attributable to that
                 class during the most recent fiscal year.
            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<CAPTION>
         Share Class     Year 1   Year 3         Year 5        Year 10
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   $73      $227           $395          $  883
         ---------------------------------------------------------------------
         Administrative   98       306            531           1,178
         ---------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 32
<PAGE>

            PIMCO Micro-Cap Fund
                                                     Ticker Symbols:
                                                     PMCIX  (Inst. Class)
                                                     PMGAX (Admin. Class)
--------------------------------------------------------------------------------
Principal     Investment Objective Fund Focus         Approximate
Investments   Seeks long-term      Very small         Capitalization Range
and           growth of capital    capitalization     Less than $250 million
Strategies                         common stocks
                                                      Dividend Frequency
                                   Approximate Number At least annually
                                   of Holdings
                                   60-100

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with very small market capitalizations that have improving
            fundamentals (based on growth criteria) and whose stock is
            reasonably valued by the market (based on value criteria).

             In making investment decisions for the Fund, the portfolio
            management team considers companies in the U.S. market with market
            capitalizations less than $250 million. The team screens the
            stocks in this universe for a series of growth criteria, such as
            dividend growth, earnings growth, relative growth of earnings over
            time (earnings momentum) and the company's history of meeting
            earnings targets (earnings surprise), and also value criteria,
            such as price-to-earnings, price-to-book and price-to-cash flow
            ratios. The team then selects individual stocks by subjecting the
            top 10% of the stocks in the screened universe to a rigorous
            analysis of company factors, such as strength of management,
            competitive industry position, and business prospects, and
            financial statement data, such as earnings, cash flows and
            profitability. The team may interview company management in making
            investment decisions. The Fund's capitalization criteria applies
            at the time of investment.

             The portfolio management team rescreens the universe frequently
            and seeks to consistently achieve a favorable balance of growth
            and value characteristics for the Fund. The team looks to sell a
            stock when it falls below the median ranking, has negative
            earnings surprises, or shows poor price performance relative to
            all stocks in the Fund's capitalization range or to companies in
            the same business sector. A stock may also be sold if its
            weighting in the portfolio becomes excessive (normally above 3% of
            the Fund's investments). The Fund may invest a substantial portion
            of its assets in the securities of smaller capitalization
            companies and securities issued in initial public offerings
            (IPOs). The Fund has in the past invested a significant portion of
            its assets in technology or technology-related companies, although
            there is no assurance that it will continue to do so in the
            future.

             The Fund intends to be fully invested in common stock (aside from
            certain cash management practices) and will not make defensive
            investments in response to unfavorable market and other
            conditions.

--------------------------------------------------------------------------------
Principal Risks
            Among the principal risks of investing in the Fund, which could
            adversely affect its net asset value, yield and total return, are:

<TABLE>
<S>         <C>                     <C>                    <C>
            .Market Risk            .Smaller Company Risk  .Focused Investment
            .Issuer Risk            .IPO Risk              .Credit Risk
            .Value Securities Risk  .Liquidity Risk        .Management Risk
            .Growth Securities Risk .Technology
                                      Related Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance
Information The top of the next page shows summary performance information for
            the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Institutional Class shares.
            For periods prior to the inception of Administrative Class shares
            (4/1/96), performance information shown in the Average Annual
            Total Returns table for that class is based on the performance of
            the Fund's Institutional Class shares. The prior Institutional
            Class performance has been adjusted to reflect the actual
            distribution and/or service (12b-1) fees and other expenses paid
            by Administrative Class shares. Past performance is no guarantee
            of future results.
33  PIMCO Funds: Multi-Manager Series

<PAGE>

            PIMCO Micro-Cap Fund (continued)

            Calendar Year Total Returns -- Institutional Class

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 - 9/30/00
                                                                          25.53%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (3rd Qtr.
                                                            '97)          21.61%
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            '98)         -20.71%

                                   [GRAPH]

                               1994      1.02%
                               1995     36.25%
                               1996     23.83%
                               1997     36.69%
                               1998     -3.88%
                               1999      5.43%

                       Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>

                                                                  Fund Inception
                                                   1 Year 5 Years (6/25/93)(/3/)
         -----------------------------------------------------------------------
         <S>                                       <C>    <C>     <C>
         Institutional Class                        5.43% 18.50%  16.99%
         -----------------------------------------------------------------------
         Administrative Class                       5.17% 18.22%  16.70%
         -----------------------------------------------------------------------
         Russell 2000 Index(/1/)                   21.25% 16.69%  14.19%
         -----------------------------------------------------------------------
         Lipper Small-Cap Core Funds Average(/2/)  28.46% 17.40%  13.35%
         -----------------------------------------------------------------------
</TABLE>
            (1) The Russell 2000 Index is a capitalized weighted broad based
                index of small capitalization U.S. stocks. It is not possible
                to invest directly in the index.
            (2) The Lipper Small-Cap Core Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest primarily in companies with market
                capitalizations (on a three-year weighted basis) of less than
                250% of the dollar-weighted median market capitalization of the
                S&P Small-Cap 600 Index. It does not take into account sales
                charges.
            (3) The Fund began operations on 6/25/93. Index comparisons begin
                on 6/30/93.

--------------------------------------------------------------------------------
Fees and
Expenses    These tables describe the fees and expenses you may pay if you buy
of the      and hold Institutional Class or Administrative Class shares of the
Fund        Fund:

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>

                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   1.25%    None           0.26%         1.51%
         ---------------------------------------------------------------------
         Administrative  1.25     0.25%          0.26          1.76
         ---------------------------------------------------------------------
            (1)  Other Expenses reflects a 0.25% Administrative Fee paid by
                 the class and 0.01% in other expenses attributable to that
                 class during the most recent fiscal year.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<CAPTION>
         Share Class     Year 1   Year 3         Year 5        Year 10
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   $154     $477           $824          $1,802
         ---------------------------------------------------------------------
         Administrative   179      554            954           2,073
         ---------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 34
<PAGE>

            PIMCO Small-Cap Value Fund
                                                   Ticker Symbols:
                                                   PSVIX (Inst. Class)
                                                   PVADX (Admin. Class)
--------------------------------------------------------------------------------
Principal     Investment          Fund Focus              Approximate
Investments   Objective           Undervalued smaller     Capitalization Range
and           Seeks long-term     capitalization          Between $100 million
Strategies    growth of capital   common stocks           and $1.5 billion
              and income
                                  Approximate Number      Dividend Frequency
                                  of Holdings             At least annually
                                  100

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with market capitalizations of between $100 million and $1.5
            billion at the time of investment and below average P/E ratios
            relative to the market and their respective industry groups. To
            achieve income, the Fund invests a portion of its assets in
            income-producing (e.g., dividend-paying) common stocks.

              The Fund's initial selection universe consists of approximately
            4,500 stocks of companies within the Fund's capitalization range.
            The portfolio managers screen this universe to identify
            approximately 500 undervalued stocks representing approximately
            160 industry groups. This screening process is based on a number
            of valuation factors, including P/E ratios (calculated both with
            respect to trailing operating earnings and forward earnings
            estimates) and price-to-sales, price-to-book value, and price-to-
            cash flow ratios. These factors are considered both on a relative
            basis (compared to other stocks in the same industry group) and on
            an absolute basis (compared to the overall market).

              From this narrowed universe, the portfolio managers select
            approximately 100 stocks for the Fund, each of which has close to
            equal weighting in the portfolio. They select stocks based on a
            quantitative analysis of factors including price momentum (based
            on changes in stock price relative to changes in overall market
            prices), earnings momentum (based on analysts' earnings per share
            estimates and revisions to those estimates), relative dividend
            yields and trading liquidity. The portfolio is also structured to
            have a maximum weighting of no more than 10% in any one industry.
            The portfolio managers may replace a stock if its market
            capitalization becomes excessive, if its valuation exceeds the
            average valuation of stocks represented in the S&P 500 Index, or
            when a stock within the same industry group has a considerably
            lower valuation than the Fund's current holding.

              Under normal circumstances, the Fund intends to be fully
            invested in common stocks (aside from certain cash management
            practices). The Fund may temporarily hold up to 10% of its assets
            in cash and cash equivalents for defensive purposes in response to
            unfavorable market and other conditions. This would be
            inconsistent with the Fund's investment objective and principal
            strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              .Market Risk           .Smaller Company Risk  .Credit Risk
              .Issuer Risk           .Liquidity Risk        .Management Risk
              .Value Securities Risk .Focused Investment Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Institutional Class shares.
            For periods prior to the inception of Administrative Class shares
            (11/1/95), performance information shown in the Average Annual
            Total Returns table for that class is based on the performance of
            the Fund's Institutional Class shares. The prior Institutional
            Class performance has been adjusted to reflect the actual
            distribution and/or service (12b-1) fees and other expenses paid
            by Administrative Class shares. Past performance is no guarantee
            of future results.

35 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Small-Cap Value Fund (continued)

            Calendar Year Total Returns -- Institutional Class

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 - 9/30/00
                                                                          10.93%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (2nd Qtr.
                                                            "99)          16.39%
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            "98)         -18.61%

                                   [GRAPH]

                              1992       18.27%
                              1993       13.39%
                              1994       -4.07%
                              1995       24.98%
                              1996       27.22%
                              1997       34.47%
                              1998       -9.16%
                              1999       -6.40%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>

                                                                     Fund Inception
                                      1 Year         5 Years         (10/1/91)(/3/)
         --------------------------------------------------------------------------
         <S>                          <C>            <C>             <C>
         Institutional Class          -6.40%         12.97%          11.98%
         --------------------------------------------------------------------------
         Administrative Class         -6.69%         12.67%          11.69%
         --------------------------------------------------------------------------
         Russell 2000 Index(/1/)      21.25%         16.69%          14.97%
         --------------------------------------------------------------------------
         Lipper Small-Cap Value Funds
          Average(/2/)
                                       5.87%         13.76%          13.08%
         --------------------------------------------------------------------------
</TABLE>
            (1)  The Russell 2000 Index is a capitalization weighted broad
                 based index of 2,000 small capitalization U.S. stocks. It is
                 not possible to invest directly in the index.
            (2)  The Lipper Small-Cap Value Funds Average is a total return
                 performance average of funds tracked by Lipper Analytical
                 Services, Inc. that invest primarily in companies with market
                 capitalizations of less than 250% of the dollar-weighted
                 median market capitalization of the S&P Small-Cap 600 Index.
                 It does not take into account sales charges.
            (3)  The Fund began operations on 10/1/91. Index comparisons begin
                 on 9/30/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)
                                                          None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   0.60%    None           0.26%         0.86%
         ---------------------------------------------------------------------
         Administrative  0.60     0.25%          0.26          1.11
         ---------------------------------------------------------------------
            (1)  Other Expenses reflects a 0.25% Administrative Fee paid by
                 the class and 0.01% in other expenses attributable to that
                 class during the most recent fiscal year.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<CAPTION>
         Share Class     Year 1   Year 3         Year 5        Year 10
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   $ 88     $274           $477          $1,061
         ---------------------------------------------------------------------
         Administrative   113      353            612           1,352
         ---------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 36
<PAGE>

            PIMCO Enhanced Equity Fund
                                                      Ticker Symbols:
                                                      PEEIX (Inst. Class)
                                                      PEQAX (Admin. Class)
--------------------------------------------------------------------------------
Principal     Investment Objective
Investments                      Fund Focus             Approximate
and           Seeks to provide   A portion of the       Capitalization Range
Strategies    a total return     common stocks          More than $5 billion
              which equals or    represented in
              exceeds the        the S&P 500            Dividend Frequency
              total return       Index                  At least annually
              performance of
              an index           Approximate Number
              (currently the     of Holdings
              S&P 500 Index)     100-200
              that represents
              the performance
              of a reasonably
              broad spectrum
              of common stocks
              that are
              publicly traded
              in the U.S.

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks represented
            in the S&P 500 Index.

             In making investment decisions for the Fund, the portfolio
            managers first rank the stocks in the S&P 500 Index using a
            quantitative model that analyses each stock's exposure to both
            growth factors (including company revenues and cash flows,
            reported and estimated earnings and earnings estimates revisions)
            and value factors (including relative stock price and price-to-
            earnings ratios). The rankings give more weight to stocks with
            rising earnings expectations where the stock price reflects
            reasonable valuation relative to other stocks in the same industry
            sector.

             Using these rankings, the portfolio managers construct a sector-
            neutral portfolio of between 100 to 200 stocks designed to have
            above-average total return potential relative to the S&P 500
            Index. The portfolio managers also use a computer optimization
            model to provide risk-controlled exposure to the S&P 500 Index,
            such that the portfolio ordinarily has no greater volatility than
            the index and provides diversification across the industry sectors
            represented in the index. The portfolio managers attempt to
            maintain this balance through frequent and modest restructuring of
            the portfolio. Generally, a stock is sold when it drops
            significantly in the portfolio managers' rankings or when a
            replacement is necessary to maintain the Fund's balance of risk
            relative to the S&P 500 Index.

             Notwithstanding these strategies, there is no assurance that the
            Fund's investment performance will equal or exceed that of the S&P
            500 Index.

             The Fund may invest in stocks of foreign issuers if included in
            the S&P 500. The Fund may change the index upon which it bases its
            performance without shareholder approval, although it does not
            expect to make such a change under ordinary circumstances.

             The Fund intends to be fully invested in common stock (aside from
            certain cash management practices) and will not make defensive
            investments in response to unfavorable market and other
            conditions.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

      .Market Risk            .Foreign Investment Risk    .Leveraging Risk

      .Issuer Risk            .Currency Risk              .Credit Risk

      .Value Securities Risk  .Focused Investment Risk    .Management Risk

      .Growth Securities Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Institutional Class shares.
            For periods prior to the inception of Administrative Class shares
            (8/21/97), performance information shown in the Average Annual
            Total Returns table for that class is based on the performance of
            the Fund's Institutional Class shares. The prior Institutional
            Class performance has been adjusted to reflect the actual
            distribution and/or service (12b-1) fees and other expenses paid
            by Administrative Class shares. Past performance is no guarantee
            of future results.

37 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Enhanced Equity Fund (continued)

            Calendar Year Total Returns -- Institutional Class

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 - 9/30/00
                                                                          -2.89%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4th Qtr.
                                                            "98)          22.48%
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            "98)         -13.13%

                                   [GRAPH]

                                 1992    6.60%
                                 1993    3.71%
                                 1994   -0.49%
                                 1995   34.42%
                                 1996   21.15%
                                 1997   30.85%
                                 1998   26.51%
                                 1999   17.49%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>

                                                             Fund Inception
                                  1 Year       5 Years       (2/11/91)(/3/)
         ----------------------------------------------------------------------------
         <S>                      <C>          <C>           <C>
         Institutional Class      17.49%       25.93%        17.41%
         ----------------------------------------------------------------------------
         Administrative Class     17.40%       25.64%        17.13%
         ----------------------------------------------------------------------------
         S&P 500 Index(/1/)       21.04%       28.56%        20.50%
         ----------------------------------------------------------------------------
         Lipper Large-Cap Core
          Funds Average(/2/)
                                  22.77%       25.49%        18.48%
         ----------------------------------------------------------------------------
</TABLE>
            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Large-Cap Core Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest primarily in companies with market
                capitalizations of greater than 300% of the dollar-weighted
                median market capitalization of the S&P Mid-Cap 400 Index. It
                does not take into accout sales charges.
            (3) The Fund began operations on 2/11/91. Index comparisons begin
                on 1/31/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>

                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   0.45%    None           0.26%         0.71%
         ---------------------------------------------------------------------
         Administrative  0.45     0.25%          0.26          0.96
         ---------------------------------------------------------------------
            (1)  Other Expenses reflects a 0.25% Administrative Fee paid by
                 the class and 0.01% in other expenses attributable to that
                 class during the most recent fiscal year.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<CAPTION>
         Share Class     Year 1   Year 3         Year 5        Year 10
         ---------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   $73      $227           $395          $  883
         ---------------------------------------------------------------------
         Administrative   98       306            531           1,178
         ---------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 38
<PAGE>

            PIMCO Tax-Efficient Equity Fund
                                                         Ticker Symbols:
                                                         N/A   (Inst. Class)
                                                         PTXAX (Admin. Class)
--------------------------------------------------------------------------------
Principal     Investment ObjectiveFund Focus              Approximate
Investments   Seeks maximum       A portion of the        Capitalization Range
and           after-tax growth    common stocks           More than $5 billion
Strategies    of capital          represented in
                                  the S&P 500 Index

                                  Approximate Number      Dividend Frequency
                                  of Holdings
                                  More than 200           At least annually

            The Fund attempts to provide a total return which exceeds the
            return of the S&P 500 Index by investing in a broadly diversified
            portfolio of at least 200 common stocks. The Fund also attempts to
            achieve higher after-tax returns for its shareholders by using a
            variety of tax-efficient management strategies.

             The Fund seeks to achieve its investment objective by normally
            investing at least 95% of its assets in stocks represented in the
            S&P 500 Index. The Fund's portfolio is designed to have certain
            characteristics that are similar to those of the index, including
            such measures as dividend yield, P/E ratio, relative volatility,
            economic sector exposure, return on equity and market price-to-
            book value ratio. The Fund's return is intended to correlate
            highly with the return of the S&P 500 Index, but the portfolio
            managers attempt to produce a higher total return than the index
            by selecting a portion of the stocks represented in the index
            using the quantitative techniques described below. The portfolio
            managers also use these techniques to make sell decisions.
            Notwithstanding these strategies, there is no assurance that the
            Fund's investment performance will equal or exceed that of the S&P
            500 Index.

             The Fund intends to be fully invested in common stock (aside from
            certain cash management practices) and will not make defensive
            investments in response to unfavorable market and other
            conditions.

             Quantitative Techniques. The portfolio managers use a proprietary
            quantitative model that ranks companies based on long-term (5-10
            years) price appreciation potential. They analyze factors such as
            growth of sustainable earnings and dividend behavior. Stocks in
            the top 50% of the model's ranking are considered for purchase by
            the Fund. The Fund looks to sell stocks selected from the bottom
            20% of the model's ranking based on cost, current market value and
            anticipated benefit of replacement. The portfolio managers' sell
            discipline also focuses on reducing realized capital gains as
            indicated below.

             Tax-Efficient Strategies. The portfolio managers utilize a range
            of active tax management strategies designed to minimize the
            Fund's taxable distributions, including low portfolio turnover and
            favoring investments in low-dividend, growth-oriented companies.
            The portfolio managers also identify specific shares of stock to
            be sold that have the lowest tax cost. When prudent, stocks are
            also sold to realize capital losses in order to offset realized
            capital gains. In limited circumstances, the Fund may also
            distribute appreciated securities to shareholders to meet
            redemption requests so as to avoid realizing capital gains.
            Despite the use of these tax-efficient strategies, the Fund may
            realize gains and shareholders will incur tax liability from time
            to time.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              .Market Risk           .Growth Securities Risk  .Credit Risk
              .Issuer Risk           .Focused Investment Risk .Management Risk
              .Value Securities Risk .Leveraging Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Administrative Class shares.
            For periods prior to the inception of Institutional Class shares
            (7/2/99) and Administrative Class shares (9/30/98), performance
            information shown in the bar chart (including the information to
            its right) and in the Average Annual Total Returns table for those
            classes is based on the performance of the Fund's Class D shares,
            which are offered in a different prospectus. The prior Class D
            performance has been adjusted to reflect that there are lower
            administrative fees and other expenses paid by Institutional Class
            and Administrative Class shares (including no distribution and/or
            service (12b-1) fees paid by Institutional Class shares). Past
            performance is no guarantee of future results.

39 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Tax-Efficient Equity Fund (continued)

            Calendar Year Total Returns -- Administrative Class

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 - 9/30/00
                                                                          -2.42%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4th Qtr.
                                                            '99)          14.98%
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            '99)          -7.32%

                                   [GRAPH]

                              1999       17.66%

                      Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>

                                                        Fund Inception
                                     1 Year             (7/10/98)(/3/)
         -----------------------------------------------------------------------------
         <S>                         <C>                <C>
         Administrative Class        17.66%             15.62%
         -----------------------------------------------------------------------------
         Institutional Class         18.09%             16.05%
         -----------------------------------------------------------------------------
         S&P 500 Index(/1/)          21.04%             20.42%
         -----------------------------------------------------------------------------
         Lipper Large-Cap Core Funds
          Average(/2/)
                                     22.77%             20.65%
         -----------------------------------------------------------------------------
</TABLE>
            (1)  The S&P 500 Index is an unmanaged index of large
                 capitalization common stocks. It is not possible to invest
                 directly in the index.
            (2)  The Lipper Large-Cap Core Funds Average is a total return
                 performance average of funds tracked by Lipper Analytical
                 Services, Inc. that invest primarily in companies with market
                 capitalizations of greater than 300% of the dollar-weighted
                 median market capitalization of the S&P Mid-Cap 400 Index. It
                 does not take into account sales charges.
            (3)  The Fund began operations on 7/10/98. Index comparisons begin
                 on 6/30/98.


--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
         --------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>

         Institutional   0.45%    None           0.26%         0.71%
         --------------------------------------------------------------------
         Administrative  0.45     0.25%          0.26          0.96
         --------------------------------------------------------------------
</TABLE>
            (1)  Other Expenses reflects a 0.25% Administrative Fee paid by
                 the class and 0.01% in other expenses attributable to that
                 class during the most recent fiscal year.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distribution, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
         Share Class           Year 1             Year 3             Year 5             Year 10
            -----------------------------------------------------------------------------------
         <S>                   <C>                <C>                <C>                <C>
         Institutional          $73                $227               $395              $  883
            -----------------------------------------------------------------------------------
         Administrative          98                 306                531               1,178
            -----------------------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 40
<PAGE>

            PIMCO Structured Emerging Markets Fund
                                                        Ticker Symbols:
                                                        PSTIX  (Inst. Class)
                                                        N/A  (Admin. Class)
--------------------------------------------------------------------------------
Principal     Investment          Fund Focus              Approximate
Investments   Objective           Common stocks of        Capitalization Range
and           Seeks long-term     emerging market         All capitalizations
Strategies    growth of capital   issuers


                                                          Dividend Frequency
                                  Approximate Number      At least annually
                                  of Holdings
                                  More than 300

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            located in, or whose principal business operations are based in,
            emerging markets. The Fund is normally exposed to roughly 20
            emerging market countries and invests in more than 300 stocks. The
            Fund invests most of its assets in foreign securities which trade
            primarily in currencies other than the U.S. dollar and may also
            invest directly in foreign currencies.

             The International Finance Corporation Investable Composite Index
            is the primary source for identifying emerging market countries
            for the Fund. The portfolio managers may identify other emerging
            market countries on the basis of market capitalization and
            liquidity, as well their inclusion (or consideration for
            inclusion) as emerging market countries in other broad-based
            market indexes.

             The portfolio managers follow a disciplined and systematic
            investment process that emphasizes diversification and fairly
            consistent allocation among countries, industries and issuers.
            They select countries based on factors such as level of economic
            development (with emphasis on GNP per capita and local economic
            diversification) and the maturity of equity markets in the country
            (with emphasis on freedom of investment flows and development of
            legal, regulatory, banking and settlement systems). They assign
            equal weight to most countries represented in the portfolio unless
            the size of a country's equity market is prohibitive. Countries
            with smaller equity markets (i.e., less than $5 billion of market
            capitalization) are assigned one-half the weight of countries with
            larger equity markets. The portfolio managers divide all issuers
            in each eligible country into the following five broad economic
            sector groups: financial, industrial, consumer, utilities and
            natural resources. The Fund attempts to maintain exposure across
            all five sectors in each country. The portfolio managers purchase
            and sell individual stocks based on such factors as liquidity,
            industry representation, performance relative to industry and
            long-term profitability. A stock may also be sold when the
            portfolio managers believe its relative weighting in the portfolio
            has become excessive.

             Aside from certain cash management practices, the Fund intends to
            invest substantially all of its assets in common stocks and other
            equity and equity-linked securities (including preferred stocks
            and convertible securities) and will not make defensive
            investments in response to unfavorable market and other
            conditions. The Fund may use derivatives.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              .Foreign               .Value Securities    .Focused
               Investment Risk        Risk                 Investment Risk
              .Emerging Markets      .Growth              .Leveraging Risk
               Risk                   Securities Risk     .Credit Risk
              .Currency Risk         .Smaller Company     .Management Risk
              .Market Risk            Risk
              .Issuer Risk           .Liquidity Risk
                                     .Derivatives Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

41 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Structured Emerging Markets Fund (continued)

--------------------------------------------------------------------------------
Performance Shown below is summary performance information for the Fund in a
Information bar chart and an Average Annual Total Returns table. The
            information provides some indication of the risks of investing in
            the Fund by showing changes in its performance from year to year
            and by showing how the Fund's average annual returns compare with
            the returns of a broad-based securities market index and an index
            of similar funds. The bar chart and the information to its right
            show performance of the Fund's Institutional Class shares, but the
            returns do not reflect the impact of a 1.00% Fund Reimbursement
            Fee charged both at the time of purchase and at the time of
            redemption. If they did, the returns would be lower than those
            shown. The Fund's Administrative Class shares do not have a
            performance history. Performance information shown in the Average
            Annual Total Returns table for Administrative Class shares is
            based on the performance of the Fund's Institutional Class shares,
            adjusted to reflect the actual distribution and/or service (12b-1)
            fees and other expenses paid by Administrative Class shares.
            Unlike the bar chart, performance figures for Institutional Class
            and Administrative Class shares in the Average Annual Total
            Returns table reflect the impact of Fund Reimbursement Fees. Past
            performance is no guarantee of future results.

            Calendar Year Total Returns -- Institutional Class

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 - 9/30/00
                                                                         -18.50%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (2nd Qtr.
                                                            '99)          31.36%
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            '99)          -3.62%

                                    [GRAPH]

                                 1999   65.04%

                      Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                                 Fund Inception
                                                      1 Year     (6/30/98)(/3/)
         ----------------------------------------------------------------------
         <S>                                          <C>        <C>
         Institutional Class                          62.40%     31.47%
         ----------------------------------------------------------------------
         Administrative Class                         62.03%     31.19%
         ----------------------------------------------------------------------
         IFC Investable Composite Index(/1/)          66.79%     33.38%
         ----------------------------------------------------------------------
         Lipper Emerging Markets Fund Average(/2/)    70.21%     29.21%
         ----------------------------------------------------------------------
</TABLE>
            (1)  The IFC Investable Composite Index is an unmanaged index
                 representing the movements of stock prices and total returns
                 in emerging stock markets taking into consideration foreign
                 investment restrictions and stock screening for minimum size
                 and liquidity. It is not possible to invest directly in the
                 index.
            (2)  The Lipper Emerging Markets Fund Average is a total return
                 performance average of funds tracked by Lipper Analytical
                 Services, Inc. that have an investment objective of long-term
                 capital appreciation through investing at least 65% of their
                 total assets in "emerging markets" (as determined by a
                 country's GNP per capita or other economic measures)
                 securities. It does not take into account sales charges.
            (3)  The Fund began operations on 6/30/98. Index comparisons begin
                 on 6/30/98.
                                                                   Prospectus
                                                                              42
<PAGE>

            PIMCO Structured Emerging Markets Fund (continued)

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your         None
            investment)

            Fund Reimbursement Fee (as a percentage of offering or 1.00%*
            exchange price or amount redeemed)

            * Unless a waiver applies, you will be charged a "Fund
              Reimbursement Fee" when you purchase, sell (redeem) or exchange
              Institutional Class or Administrative Class shares of the Fund.
              The fee will be equal to 1.00% of the net asset value of the
              shares purchased, redeemed or exchanged. Fund Reimbursement Fees
              are paid to and retained by the Fund and are not sales charges
              (loads). See "Purchases, Redemptions and Exchanges--Fund
              Reimbursement Fees."

            Average Fund Operating Expenses (expenses that are deducted from
            Fund assets):

<TABLE>
<CAPTION>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
         --------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   0.45%    None           0.79%         1.24%
         --------------------------------------------------------------------
         Administrative  0.45     0.25%          0.79          1.49
         --------------------------------------------------------------------
</TABLE>
            (1)  Other Expenses reflects a 0.50% Administrative Fee paid by
                 the class and 0.29% in other expenses attributable to
                 Institutional Class shares during the most recent fiscal
                 year, and estimated to be attributable to Administrative
                 Class shares during the current fiscal year.

            Examples: The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.*

            Assuming you redeem your shares at the end of each period.

<TABLE>
<CAPTION>
         Share Class          Year 1           Year 3           Year 5           Year 10
         -------------------------------------------------------------------------------
         <S>                  <C>              <C>              <C>              <C>
         Institutional        $328             $600             $  893           $1,728
         -------------------------------------------------------------------------------
         Administrative        353              676              1,023            2,001
         -------------------------------------------------------------------------------

            Assuming you do not redeem your shares.

         Share Class          Year 1           Year 3           Year 5           Year 10
         -------------------------------------------------------------------------------
         Institutional        $225             $489             $774             $1,585
         -------------------------------------------------------------------------------
         Administrative        250              566              905              1,862
         -------------------------------------------------------------------------------
</TABLE>
            *  The Examples assume the payment of a 1.00% 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
               "Purchases, Redemptions and Exchanges--Fund Reimbursement
               Fees."


43 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Tax-Efficient Structured Emerging Markets Fund
                                            Ticker Symbols: PEFIX (Inst. Class)
                                                            N/A   (Admin. Class)

--------------------------------------------------------------------------------
Principal     Investment
Investments   Objective           Fund Focus              Approximate
and           Seeks long-term     Common stocks of        Capitalization Range
Strategies    growth of           emerging market         All capitalizations
              capital; the Fund   issuers
              also seeks to
              achieve superior
              after-tax returns
              for its
              shareholders by
              using a variety
              of tax-efficient
              management
              strategies


                                                          Dividend Frequency
                                  Approximate Number of Holdings
                                                          At least annually
                                  More than 300

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            located in, or whose principal business operations are based in,
            emerging markets. The Fund is normally exposed to roughly 20
            emerging market countries and invests in more than 300 stocks. The
            Fund invests most of its assets in foreign securities which trade
            primarily in currencies other than the U.S. dollar and may also
            invest directly in foreign currencies.

             The International Finance Corporation Investable Composite Index
            is the primary source for identifying emerging market countries
            for the Fund. The portfolio managers may identify other emerging
            market countries on the basis of market capitalization and
            liquidity, as well their inclusion (or consideration for
            inclusion) as emerging market countries in other broad-based
            market indexes.

             The portfolio managers follow a disciplined and systematic
            investment process that emphasizes diversification and fairly
            consistent allocation among countries, industries and issuers.
            They select countries based on factors such as level of economic
            development (with emphasis on GNP per capita and local economic
            diversification) and the maturity of equity markets in the country
            (with emphasis on freedom of investment flows and development of
            legal, regulatory, banking and settlement systems). They assign
            equal weight to most countries represented in the portfolio unless
            the size of a country's equity market is prohibitive. Countries
            with smaller equity markets (i.e., less than $5 billion of market
            capitalization) are assigned one-half the weight of countries with
            larger equity markets. The portfolio managers divide all issuers
            in each eligible country into the following five broad economic
            sector groups: financial, industrial, consumer, utilities and
            natural resources. The Fund attempts to maintain exposure across
            all five sectors in each country. The portfolio managers purchase
            and sell individual stocks based on such factors as liquidity,
            industry representation, performance relative to industry and
            long-term profitability. A stock may also be sold when the
            portfolio managers believe its relative weighting in the portfolio
            has become excessive.

             Aside from certain cash management practices, the Fund intends to
            invest substantially all of its assets in common stocks and other
            equity and equity-linked securities (including preferred stocks
            and convertible securities) and will not make defensive
            investments in response to unfavorable market and other
            conditions. The Fund may use derivatives.

             Tax-Efficient Strategies. The portfolio managers utilize a range
            of active tax management strategies designed to minimize the
            Fund's taxable distributions, including low portfolio turnover and
            favoring investments in low-dividend, growth-oriented companies.
            The portfolio managers also identify specific shares of stock to
            be sold that have the lowest tax cost. When prudent, stocks are
            also sold to realize capital losses in order to offset realized
            capital gains. In limited circumstances, the Fund may also
            distribute appreciated securities to shareholders to meet
            redemption requests so as to avoid realizing capital gains.
            Despite the use of these tax-efficient strategies, the Fund may
            realize gains and shareholders will incur tax liability from time
            to time.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              .Foreign Investment    .Value Securities Risk  .Focused Investment
               Risk                  .Growth Securities Risk  Risk
              .Emerging Markets Risk .Smaller Company Risk   .Leveraging Risk
              .Currency Risk         .Liquidity Risk         .Credit Risk
              .Market Risk           .Derivatives Risk       .Management Risk
              .Issuer Risk




            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

                                                                   Prospectus 44
<PAGE>

            PIMCO Tax-Efficient Structured Emerging Markets Fund (continued)

--------------------------------------------------------------------------------
Performance Shown below is summary performance information for the Fund in a
Information bar chart and an Average Annual Total Returns table. The
            information provides some indication of the risks of investing in
            the Fund by showing changes in its performance from year to year
            and by showing how the Fund's average annual returns compare with
            the returns of a broad-based securities market index and an index
            of similar funds. The bar chart and the information to its right
            show performance of the Fund's Institutional Class shares, but the
            returns do not reflect the impact of a 1.00% Fund Reimbursement
            Fee charged both at the time of purchase and at the time of
            redemption. If they did, the returns would be lower than those
            shown. The Fund's Administrative Class shares do not have a
            performance history. Performance information shown in the Average
            Annual Total Returns table for Administrative Class shares is
            based on the performance of the Fund's Institutional Class shares,
            adjusted to reflect the actual distribution and/or service (12b-1)
            fees and other expenses paid by Administrative Class shares.
            Unlike the bar chart, performance figures for Institutional Class
            and Administrative Class shares in the Average Annual Total
            Returns table reflect the impact of Fund Reimbursement Fees. Past
            performance is no guarantee of future results.

            Calendar Year Total Returns -- Institutional Class

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 - 9/30/00
                                                                         -21.55%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (2nd Qtr.
                                                            '99)          32.77%
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            '99)          -1.06%

                                   [GRAPH]

                                '99    72.61%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                                 Fund Inception
                                                      1 Year     (6/30/98)(/3/)
         ----------------------------------------------------------------------
         <S>                                          <C>        <C>
         Institutional Class                          69.68%     37.10%
         ----------------------------------------------------------------------
         Administrative Class                         69.29%     36.82%
         ----------------------------------------------------------------------
         IFC Investable Composite Index(/1/)          66.79%     33.38%
         ----------------------------------------------------------------------
         Lipper Emerging Markets Fund Average(/2/)    70.21%     29.21%
         ----------------------------------------------------------------------
</TABLE>
            (1)  The IFC Investable Composite Index is an unmanaged index
                 representing the movements of stock prices and total returns
                 in emerging stock markets taking into consideration foreign
                 investment restrictions and stock screening for minimum size
                 and liquidity. It is not possible to invest directly in the
                 index.
            (2)  The Lipper Emerging Markets Fund Average is a total return
                 performance average of funds tracked by Lipper Analytical
                 Services, Inc. that have an investment objective of long-term
                 capital appreciation through investing at least 65% of their
                 total assets in "emerging markets" (as determined by a
                 country's GNP per capita or other economic measures)
                 securities. It does not take into account sales charges.
            (3)  The Fund began operations on 6/30/98. Index comparisons begin
                 on 6/30/98.
  PIMCO Funds: Multi-Manager Series
45
<PAGE>

            PIMCO Tax-Efficient Structured Emerging Markets Fund (continued)

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your         None
            investment)

            Fund Reimbursement Fee (as a percentage of offering or 1.00%*
            exchange price or amount redeemed)

            * Unless a waiver applies, you will be charged a "Fund
              Reimbursement Fee" when you purchase, sell (redeem) or exchange
              Institutional Class or Administrative Class shares of the Fund.
              The fee will be equal to 1.00% of the net asset value of the
              shares purchased, redeemed or exchanged. Fund Reimbursement Fees
              are paid to and retained by the Fund and are not sales charges
              (loads). See "Purchases, Redemptions and Exchanges--Fund
              Reimbursement Fees."

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets):

<TABLE>
<CAPTION>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
         --------------------------------------------------------------------
         <S>             <C>      <C>            <C>           <C>
         Institutional   0.45%    None           0.55%         1.00%
         --------------------------------------------------------------------
         Administrative  0.45%    0.25%          0.55          1.25
         --------------------------------------------------------------------
</TABLE>
            (1)  Other Expenses reflects a 0.50% Administrative Fee paid by
                 the class and 0.05% in other expenses attributable to that
                 class during the most recent fiscal year.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.*

            Assuming you redeem your shares at the end of each period.
<TABLE>
<CAPTION>

         Share Class           Year 1             Year 3             Year 5             Year 10
         --------------------------------------------------------------------------------------
         <S>                   <C>                <C>                <C>                <C>
         Institutional         $304               $527               $767               $1,459
         --------------------------------------------------------------------------------------
         Administrative         329                603                898                1,739
         --------------------------------------------------------------------------------------
</TABLE>

            Assuming you do not redeem you shares.

<TABLE>
<CAPTION>

         Share Class           Year 1             Year 3             Year 5             Year 10
         --------------------------------------------------------------------------------------
         <S>                   <C>                <C>                <C>                <C>
         Institutional         $201               $415               $647               $1,312
         --------------------------------------------------------------------------------------
         Administrative         226                493                779                1,596
         --------------------------------------------------------------------------------------
</TABLE>
             *  The Examples assume the payment of a 1.00% 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
                "Purchases, Redemptions and Exchanges--Fund Reimbursement
                Fees."
                                                                   Prospectus
                                                                              46
<PAGE>

            PIMCO International Fund
                                                         Ticker Symbols:
                                                         N/A (Inst. Class)
                                                         N/A (Admin. Class)

--------------------------------------------------------------------------------
Principal     Investment             Fund Focus           Approximate
Investments   Objective              Common stocks of     Capitalization Range
and           Seeks capital          foreign              More than $500
Strategies    appreciation           (non-U.S.)           million
              through                issuers
              investment in an                            Dividend Frequency
              international          Approximate Number   At least annually
              portfolio; income      of Holdings
              is an incidental       200-250
              consideration


            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in an international portfolio
            of common stocks, which may or may not pay dividends. The Fund
            normally invests in securities traded principally in developed
            foreign securities markets, but may also invest up to 30% of its
            assets in developing or "emerging" markets. The Fund has no
            prescribed limits on geographic asset distribution and may invest
            in any foreign securities market in the world. The Fund may also
            invest in securities of foreign issuers traded on U.S. securities
            markets, but will normally not invest in U.S. issuers. The Fund
            invests most of its assets in foreign securities which trade in
            currencies other than the U.S. dollar and may invest directly in
            foreign currencies.


              The portfolio manager uses a "top down" investment approach. He
            first determines regional and country weightings for the Fund by
            considering such factors as the condition and growth potential of
            the various economies and securities markets, currency and
            taxation considerations and other financial, social, national and
            political factors. The Sub-Adviser's country specialists then
            select individual stocks to fill out the desired country
            weightings. In selecting stocks, the specialists analyze a broad
            range of company fundamentals, such as price-to-earnings, price-
            to-book value and price-to-cash flow ratios (value factors),
            earnings, dividend and profit growth (growth factors) and balance
            sheet strength and return on assets (quality factors). The
            portfolio manager sells stocks in order to adjust or rebalance the
            Fund's regional and country weightings or to replace companies
            with weakening fundamentals.

              The Fund may utilize foreign currency exchange contracts and
            derivative instruments (such as stock index futures contracts)
            primarily for risk management or hedging purposes. The Fund may
            also invest in equity securities other than common stocks (such as
            preferred stocks and convertible securities) and may invest up to
            10% of its assets in other investment companies. In response to
            unfavorable market and other conditions, the Fund may make
            temporary investments of some or all of its assets in foreign and
            domestic fixed income securities and in equity securities of U.S.
            issuers. This would be inconsistent with the Fund's investment
            objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              .Foreign Investment    .Value Securities      .Focused Investment
               Risk                   Risk                   Risk
              .Emerging Markets Risk .Growth Securities     .Leveraging Risk
              .Currency Risk          Risk                  .Credit Risk
              .Market Risk           .Smaller Companies     .Management Risk
              .Issuer Risk            Risk
                                     .Liquidity Risk
                                     .Derivatives Risk


            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Institutional Class shares.
            For periods prior to the inception of Institutional Class and
            Administrative Class shares (9/30/98), performance information
            shown in the bar chart (including the information to its right)
            and in the Average Annual Total Returns table for those classes is
            based on the performance of the Fund's Class C shares, which are
            offered in a different prospectus. The prior Class C performance
            has been adjusted to reflect the actual fees and expenses paid by
            Institutional Class and Administrative Class shares, including no
            sales charges (loads) and lower distribution and/or service (12b-1
            fees) (if any) and administrative fees. The Fund had different
            sub-advisers during the periods prior to November 15, 1994 and
            would not necessarily have achieved the performance results shown
            on the next page under its current investment management
            arrangements. Past performance is no guarantee of future results.

  PIMCO Funds: Multi-Manager Series
47
<PAGE>

            PIMCO International Fund (continued)

            Calendar Year Total Returns -- Institutional Class

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 - 9/30/00
                                                                         -18.06%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4th Qtr.
                                                            "99)          21.81%
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            "98)         -21.91%

                                   [GRAPH]

                             1990         -14.51%
                             1991          21.28%
                             1992          -4.75%
                             1993          34.98%
                             1994          -7.11%
                             1995           7.01%
                             1996           6.98%
                             1997           3.03%
                             1998           9.68%
                             1999          28.32%

                    Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                            Fund Inception
                                    1 Year 5 Years 10 Years (8/25/86)(/3/)
         -----------------------------------------------------------------
         <S>                        <C>    <C>     <C>      <C>
         Institutional Class        28.32% 10.67%   7.47%    9.07%
         -----------------------------------------------------------------
         Administrative Class       27.96% 10.32%   7.17%    8.78%
         -----------------------------------------------------------------
         MSCI EAFE Index(/1/)       27.31% 13.15%   7.34%   10.35%
         -----------------------------------------------------------------
         Lipper International Fund
          Average(/2/)              40.76% 15.13%  10.28%   11.59%
         -----------------------------------------------------------------
</TABLE>
            (1) The Morgan Stanley Capital International EAFE (Europe,
                Australasia, Far East) ("MSCI EAFE") Index is a widely
                recognized, unmanaged index of issuers in countries of
                Europe, Australia and Asia. It is not possible to invest
                directly in the index.
            (2) The Lipper International Fund Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest their assets in securities whose
                primary trading markets are outside of the United States. It
                does not take into account sales charges.
            (3) The Fund began operations on 8/25/86. Index comparisons begin
                on 8/31/86.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment) None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
         <S>             <C>      <C>            <C>           <C>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
         ---------------------------------------------------------------------
         Institutional   0.55%    None           0.58%         1.13%
         ---------------------------------------------------------------------
         Administrative  0.55     0.25%          0.58          1.38
         ---------------------------------------------------------------------
            (1) Other Expenses reflects a 0.50% Administrative Fee paid by the
                class and 0.08% in other expenses attributable to that class
                during the most recent fiscal year.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

         Share Class     Year 1   Year 3         Year 5        Year 10
         ---------------------------------------------------------------------
         Institutional   $115     $359           $622          $1,375
         ---------------------------------------------------------------------
         Administrative   140      437            755           1,657
         ---------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 48
<PAGE>

            Summary of Principal Risks

            The value of your investment in a Fund changes with the values of
            that Fund's investments. Many factors can affect those values. The
            factors that are most likely to have a material effect on a
            particular Fund's portfolio as a whole are called "principal
            risks." The principal risks of each Fund are identified in the
            Fund Summaries and are summarized in this section. Each Fund may
            be subject to additional principal risks and risks other than
            those described below because the types of investments made by
            each Fund can change over time. Securities and investment
            techniques mentioned in this summary and described in greater
            detail under "Characteristics and Risks of Securities and
            Investment Techniques" appear in bold type. That section and
            "Investment Objectives and Policies" in the Statement of
            Additional Information also include more information about the
            Funds, their investments and the related risks. There is no
            guarantee that a Fund will be able to achieve its investment
            objective.

Market      The market price of securities owned by a Fund may go up or down,
Risk        sometimes rapidly or unpredictably. Each of the Funds normally
            invests most of its assets in common stocks and/or other equity
            securities. A principal risk of investing in each Fund is that the
            equity securities in its portfolio will decline in value due to
            factors affecting equity securities markets generally or
            particular industries represented in those markets. The values of
            equity securities may decline due to general market conditions
            which are not specifically related to a particular company, such
            as real or perceived adverse economic conditions, changes in the
            general outlook for corporate earnings, changes in interest or
            currency rates or adverse investor sentiment generally. They may
            also decline due to factors which affect a particular industry or
            industries, such as labor shortages or increased production costs
            and competitive conditions within an industry. Equity securities
            generally have greater price volatility than fixed income
            securities.

Issuer      The value of a security may also decline for a number of reasons
Risk        which directly relate to the issuer, such as management
            performance, financial leverage and reduced demand for the
            issuer's goods or services.

Value       Each Fund may invest in companies that may not be expected to
Securities  experience significant earnings growth, but whose securities its
Risk        portfolio manager believes are selling at a price lower than their
            true value. The Equity Income, Value, Renaissance, Growth &
            Income, Allianz Select International, Mega-Cap, Capital
            Appreciation, Mid-Cap, Micro-Cap, Small-Cap Value, Enhanced
            Equity, Tax-Efficient Equity, Structured Emerging Markets, Tax-
            Efficient Structured Emerging Markets and International Funds may
            place particular emphasis on value securities. Companies that
            issue value securities may have experienced adverse business
            developments or may be subject to special risks that have caused
            their securities to be out of favor. If a portfolio manager's
            assessment of a company's prospects is wrong, or if the market
            does not recognize the value of the company, the price of its
            securities may decline or may not approach the value that the
            portfolio manager anticipates.

Growth      Each Fund may invest in equity securities of companies that its
Securities  portfolio manager believes will experience relatively rapid
Risk        earnings growth. The Growth & Income, Growth, Select Growth,
            Target, Opportunity, Innovation, Global Innovation, Allianz Select
            International, Mega-Cap, Capital Appreciation, Mid-Cap, Micro-Cap,
            Enhanced Equity, Tax-Efficient Equity, Structured Emerging
            Markets, Tax-Efficient Structured Emerging Markets and
            International Funds may place particular emphasis on growth
            securities. Growth securities typically trade at higher multiples
            of current earnings than other securities. Therefore, the values
            of growth securities may be more sensitive to changes in current
            or expected earnings than the values of other securities.

Smaller
Company
Risk
            The general risks associated with equity securities and liquidity
            risk are particularly pronounced for securities of companies with
            smaller market capitalizations. These companies may have limited
            product lines, markets or financial resources or they may depend
            on a few key employees. Securities of smaller companies may trade
            less
49 PIMCO Funds: Multi-Manager Series

<PAGE>

            frequently and in lesser volume than more widely held securities
            and their values may fluctuate more sharply than other securities.
            They may also trade in the over-the-counter market or on a
            regional exchange, or may otherwise have limited liquidity. The
            Micro-Cap Fund, in particular, and the Innovation, Global
            Innovation, Opportunity and Small-Cap Value Funds generally have
            substantial exposure to this risk. The Growth & Income, Target,
            Allianz Select International and Mid-Cap Funds also have
            significant exposure to this risk because they invest substantial
            assets in companies with medium-sized market capitalizations,
            which are smaller and generally less-seasoned than the largest
            companies.

IPO Risk    The Funds, particularly the Global Innovation Fund, may purchase
            securities in initial public offerings (IPOs). These securities
            are subject to many of the same risks as investing in companies
            with smaller market capitalizations. Securities issued in IPOs
            have no trading history, and information about the companies may
            be available for very limited periods. In addition, the prices of
            securities sold in IPOs may be highly volatile. At any particular
            time or from time to time a Fund may not be able to invest in
            securities issued in IPOs, or invest to the extent desired,
            because, for example, only a small portion (if any) of the
            securities being offered in an IPO may be made available to the
            Fund. In addition, under certain market conditions a relatively
            small number of companies may issue securities in IPOs. Similarly,
            as the number of Funds to which IPO securities are allocated
            increases, the number of securities issued to any one Fund may
            decrease. The investment performance of a Fund during periods when
            it is unable to invest significantly or at all in IPOs may be
            lower than during periods when the Fund is able to do so. In
            addition, as a Fund increases in size, the impact of IPOs on the
            Fund's performance will generally decrease.

Liquidity   All of the Funds are subject to liquidity risk. Liquidity risk
Risk        exists when particular investments are difficult to purchase or
            sell, possibly preventing a Fund from selling such illiquid
            securities at an advantageous time or price. Funds with principal
            investment strategies that involve securities of companies with
            smaller market capitalizations, foreign securities, derivatives or
            securities with substantial market and/or credit risk tend to have
            the greatest exposure to liquidity risk.

Derivatives All Funds except the Mega-Cap, Capital Appreciation, Mid-Cap,
Risk        Micro-Cap and Small-Cap Value Funds may use derivatives, which are
            financial contracts whose value depends on, or is derived from,
            the value of an underlying asset, reference rate or index. The
            various derivative instruments that the Funds may use are
            referenced under "Characteristics and Risks of Securities and
            Investment Techniques--Derivatives" in this Prospectus and
            described in more detail under "Investment Objectives and
            Policies" in the Statement of Additional Information. The Funds
            may sometimes use derivatives as part of a strategy designed to
            reduce exposure to other risks, such as interest rate or currency
            risk. The Funds may also use derivatives for leverage, which
            increases opportunities for gain but also involves greater risk of
            loss due to leveraging risk. A Fund's use of derivative
            instruments involves risks different from, or possibly greater
            than, the risks associated with investing directly in securities
            and other traditional investments. Derivatives are subject to a
            number of risks described elsewhere in this section, such as
            liquidity risk, market risk, credit risk and management risk. They
            also involve the risk of mispricing or improper valuation and the
            risk that changes in the value of the derivative may not correlate
            perfectly with the underlying asset, rate or index. In addition, a
            Fund's use of derivatives may increase or accelerate the amount of
            taxes payable by shareholders. A Fund investing in a derivative
            instrument could lose more than the principal amount invested.
            Also, suitable derivative transactions may not be available in all
            circumstances and there can be no assurance that a Fund will
            engage in these transactions to reduce exposure to other risks
            when that would be beneficial.

Sector      In addition to other risks, Funds that invest a substantial
Specific    portion of their assets in related industries (or "sectors") may
Risks       have greater risk because companies in these sectors may share
            common characteristics and may react similarly to market
            developments.


                                                                   Prospectus 50
<PAGE>

            Technology Related Risk. Because the Global Innovation and
            Innovation Funds concentrate their investments in companies which
            utilize innovative technologies, they are subject to risks
            particularly affecting those companies, such as the risks of short
            product cycles and rapid obsolescence of products and services,
            competition from new and existing companies, signficant losses
            and/or limited earnings, security price volatility and limited
            operating histories. Other Funds may also be subject to these
            risks to the extent they invest their assets in technology or
            technology-related companies.

Foreign     A Fund that invests in foreign securities, and particularly the
(non-       Global Innovation, Allianz Select International, Structured
U.S.)       Emerging Markets, Tax-Efficient Structured Emerging Markets and
Investment  International Funds, may experience more rapid and extreme changes
Risk        in value than Funds that invest exclusively in securities of U.S.
            issuers or securities that trade exclusively in U.S. markets. The
            securities markets of many foreign countries are relatively small,
            with a limited number of companies representing a small number of
            industries. Additionally, issuers of foreign securities are
            usually not subject to the same degree of regulation as U.S.
            issuers. Reporting, accounting and auditing standards of foreign
            countries differ, in some cases significantly, from U.S.
            standards. Also, nationalization, expropriation or confiscatory
            taxation, currency blockage, political changes or diplomatic
            developments could adversely affect a Fund's investments in a
            foreign country. In the event of nationalization, expropriation or
            other confiscation, a Fund could lose its entire investment in
            foreign securities. To the extent that a Fund, such as the Global
            Innovation, Allianz Select International, Structured Emerging
            Markets, Tax-Efficient Structured Emerging Markets or
            International Fund, invests a significant portion of its assets in
            a narrowly defined geographic area such as Europe, Asia or South
            America, the Fund will generally have more exposure to regional
            economic risks associated with foreign investments. Adverse
            conditions in certain regions (such as Southeast Asia) can also
            adversely affect securities of other countries whose economies
            appear to be unrelated. In addition, special U.S. tax
            considerations may apply to a Fund's investment in foreign
            securities.

            Foreign investment risk may be particularly high to the extent
Emerging    that a Fund invests in emerging market securities of issuers based
Markets     in countries with developing economies. These securities may
Risk        present market, credit, currency, liquidity, legal, political and
            other risks different from, or greater than, the risks of
            investing in developed foreign countries. The Structured Emerging
            Markets and Tax-Efficient Structured Emerging Markets Funds
            normally invest most of their assets in emerging market securities
            and are particularly sensitive to these risks. The Global
            Innovation, Allianz Select International and International Funds
            may also invest a significant portion of their assets in emerging
            market securities. In addition, the risks associated with
            investing in a narrowly defined geographic area (discussed above
            under "Foreign (non-U.S.) Investment Risk") are generally more
            pronounced with respect to investments in emerging market
            countries.

Currency    Funds that invest directly in foreign currencies or in securities
Risk        that trade in, and receive revenues in, foreign currencies are
            subject to the risk that those currencies will decline in value
            relative to the U.S. Dollar, or, in the case of hedging positions,
            that the U.S. Dollar will decline in value relative to the
            currency being hedged. The Global Innovation, Allianz Select
            International, Structured Emerging Markets, Tax-Efficient
            Structured Emerging Markets and International Funds are
            particularly sensitive to currency risk. Currency rates in foreign
            countries may fluctuate significantly over short periods of time
            for a number of reasons, including changes in interest rates,
            intervention (or the failure to intervene) by U.S. or foreign
            governments, central banks or supranational entities such as the
            International Monetary Fund, or by the imposition of currency
            controls or other political developments in the U.S. or abroad.


Focused     Focusing Fund investments in a small number of issuers, industries
Investment  or foreign currencies or regions increases risk. Funds, such as
Risk        the Select Growth Fund, that are "non-diversified" because they
            invest in a relatively small number of issuers may have more risk
            because changes in the value of a single security or the impact of
            a single economic, political or regulatory occurrence may have a
            greater adverse impact on the Fund's net asset value. Some of those

51 PIMCO Funds: Multi-Manager Series
<PAGE>

            issuers also may present substantial credit or other risks. The
            Global Innovation, Allianz Select International, Structured
            Emerging Markets, Tax-Efficient Structured Emerging Markets and
            International Funds may be subject to increased risk to the extent
            that they focus their investments in securities denominated in a
            particular foreign currency or in a narrowly defined geographic
            area outside the U.S., because companies in those areas may share
            common characteristics and are often subject to similar business
            risks and regulatory burdens, and their securities may react
            similarly to economic, market, political or other developments.
            Similarly, the Innovation and Global Innovation Funds are
            vulnerable to events affecting companies which use innovative
            technologies to gain a strategic, competitive advantage in their
            industry and companies that provide and service those technologies
            because these funds normally "concentrate" their investments in
            those companies. Also, the Funds may from time to time have
            greater risk to the extent they invest a substantial portion of
            their assets in companies in related industries such as
            "technology" or "financial and business services," which may share
            common characteristics, are often subject to similar business
            risks and regulatory burdens, and whose securities may react
            similarly to economic, market, political or other developments.

            Leverage, including borrowing, will cause the value of a Fund's
Leveraging  shares to be more volatile than if the Fund did not use leverage.
Risk        This is because leverage tends to exaggerate the effect of any
            increase or decrease in the value of a Fund's portfolio
            securities. The Funds, and in particular the Global Innovation,
            Enhanced Equity, Tax-Efficient Equity, Structured Emerging
            Markets, Tax-Efficient Structured Emerging Markets and
            International Funds, may engage in transactions or purchase
            instruments that give rise to forms of leverage. Such transactions
            and instruments may include, among others, the use of reverse
            repurchase agreements and other borrowings, the investment of
            collateral from loans of portfolio securities, or the use of when-
            issued, delayed-delivery or forward commitment transactions. The
            use of derivatives may also involve leverage. The use of leverage
            may also cause a Fund to liquidate portfolio positions when it
            would not be advantageous to do so in order to satisfy its
            obligations or to meet segregation requirements.

Interest    To the extent that Funds purchase fixed income securities for
Rate Risk   investment or defensive purposes, they will be subject to interest
            rate risk, a market risk relating to investments in fixed income
            securities such as bonds and notes. The Growth & Income Fund is
            particularly sensitive to this risk because it may invest in
            interest rate sensitive securities such as corporate bonds.

            As interest rates rise, the value of fixed income securities in a
            Fund's portfolio are likely to decrease. Securities with longer
            "durations" (defined below) tend to be more sensitive to changes
            in interest rates, usually making them more volatile than
            securities with shorter durations. Duration is a measure of the
            expected life of a fixed income security that is used to determine
            the sensitivity of a security's price to changes in interest
            rates. Generally, a Fund with a longer average portfolio duration
            will be more sensitive to changes in interest rates than a Fund
            with a shorter average portfolio duration.

Credit      All of the Funds are subject to credit risk. This is the risk that
Risk        the issuer or the guarantor of a fixed income security, or the
            counterparty to a derivatives contract, repurchase agreement or a
            loan of portfolio securities, is unable or unwilling to make
            timely principal and/or interest payments, or to otherwise honor
            its obligations. Securities are subject to varying degrees of
            credit risk, which are often reflected in their credit ratings.

High        Funds that invest in high yield securities and unrated securities
Yield       of similar quality (commonly known as "junk bonds") may be subject
Risk        to greater levels of interest rate, credit and liquidity risk than
            Funds that do not invest in such securities. The Growth & Income
            Fund is particularly susceptible to this risk. These securities
            are considered predominantly speculative with respect to the
            issuer's continuing ability to make principal and interest
            payments. An economic downturn or period of rising interest rates
            could adversely affect the market for these securities and reduce
            a Fund's ability to sell them.

Management  Each Fund is subject to management risk because it is an actively
Risk        managed investment portfolio. PIMCO Advisors, the Sub-Advisers and
            each individual portfolio manager will apply investment techniques
            and risk analyses in making investment decisions for the Funds,
            but there can be no guarantee that these will produce the desired
            results.

                                                                   Prospectus 52
<PAGE>

            Management of the Funds

Investment
Adviser
and
Administrator
            PIMCO Advisors serves as the investment adviser and the
            administrator (serving in its capacity as administrator, the
            "Administrator") for the Funds. Subject to the supervision of the
            Board of Trustees, PIMCO Advisors is responsible for managing,
            either directly or through others selected by it, the investment
            activities of the Funds and the Funds' business affairs and other
            administrative matters.

             PIMCO Advisors is located at 800 Newport Center Drive, Newport
            Beach, California 92660. Organized in 1987, PIMCO Advisors
            provides investment management and advisory services to private
            accounts of institutional and individual clients and to mutual
            funds. As of September 30, 2000, PIMCO Advisors and its subsidiary
            partnerships had approximately $272 billion in assets under
            management.

             PIMCO Advisors has retained investment management firms ("Sub-
            Advisers") to manage each Fund's investments, except that the
            PIMCO Equity Advisors division of PIMCO Advisors manages the
            investments of the Equity Income, Value, Renaissance, Growth &
            Income, Growth, Select Growth, Target, Opportunity, Innovation and
            Global Innovation Funds. (PIMCO Equity Advisors is also referred
            to as a "Sub-Adviser" in this capacity.) See "Sub-Advisers" below.

             PIMCO Advisors has retained its affiliate, Pacific Investment
            Management Company LLC ("Pacific Investment Management Company"),
            to provide various administrative and other services required by
            the Funds in its capacity as sub-administrator. PIMCO Advisors and
            the sub-administrator may retain other affiliates to provide
            certain of these services.

Advisory    Each Fund pays PIMCO Advisors fees in return for providing or
Fees        arranging for the provision of investment advisory services. In
            the case of Funds for which PIMCO Advisors has retained a separate
            Sub-Adviser, PIMCO Advisors (and not the Fund) pays a portion of
            the advisory fees it receives to the Sub-Adviser in return for its
            services.

             For the fiscal year ended June 30, 2000, the Funds paid monthly
            advisory fees to PIMCO Advisors at the following annual rates
            (stated as a percentage of the average daily net assets of each
            Fund taken separately):

         Fund                                                  Advisory Fees
            ----------------------------------------------------------------
         Equity Income, Value, Capital Appreciation, Mid-Cap,
          Enhanced Equity, Tax-Efficient Equity, Structured
          Emerging Markets and
          Tax-Efficient Structured Emerging Markets Funds          0.45%
         Growth Fund                                               0.50%
         Target and International Funds                            0.55%
         Renaissance, Select Growth and Small-Cap Value Funds      0.60%*
         Growth & Income Fund                                      0.63%*
         Opportunity and Innovation Funds                          0.65%
         Allianz Select International Fund                         0.75%*
         Micro-Cap Fund                                            1.25%
            -------
            * On April 1, 2000, the advisory fee rate for the Select Growth
              Fund increased from 0.57% to 0.60% per annum. On May 8, 2000,
              the advisory fee rate for the Allianz Select International Fund
              decreased from 0.85% to 0.75% per annum. On August 1, 2000, the
              advisory fee rate for the Growth & Income Fund decreased from
              0.63% to 0.60% per annum.

             The Global Innovation and Mega-Cap Funds were not operational
            during the entire fiscal year ended June 30, 2000. The annual
            investment advisory fee rates payable by those Funds are 1.00% and
            0.45%, respectively (each stated as a percentage of the average
            daily net assets of each Fund taken separately).

53 PIMCO Funds: Multi-Manager Series

<PAGE>

Administrative
Fees
            Each Fund pays for the administrative services it requires under a
            fee structure which is essentially fixed. Institutional and
            Administrative Class shareholders of each Fund pay an
            administrative fee to PIMCO Advisors, computed as a percentage of
            the Fund's assets attributable in the aggregate to those classes
            of shares. PIMCO Advisors, in turn, provides or procures
            administrative services for Institutional and Administrative Class
            shareholders and also bears the costs of most third-party services
            required by the Funds, including audit, custodial, portfolio
            accounting, legal, transfer agency and printing costs. The Funds
            do bear other expenses which are not covered under the
            administrative fee which may vary and affect the total level of
            expenses paid by Institutional and Administrative Class
            shareholders, such as brokerage fees, commissions and other
            transaction expenses, costs of borrowing money, including interest
            expenses, and fees and expenses of the Trust's disinterested
            Trustees.

             Institutional and Administrative Class shareholders of the Funds
            pay PIMCO Advisors monthly administrative fees at the following
            annual rates (stated as a percentage of the average daily net
            assets attributable in the aggregate to the Fund's Institutional
            and Administrative Class shares):

<TABLE>
<CAPTION>
         Fund                                               Administrative Fees
            -------------------------------------------------------------------
         <S>                                                <C>
         Allianz Select International, Structured Emerging
          Markets, Tax-Efficient Structured Emerging
          Markets and International Funds                          0.50%
         Global Innovation Fund                                    0.40%
         All Other Funds                                           0.25%
</TABLE>

Sub-        Each Sub-Adviser has full investment discretion and makes all
Advisers    determinations with respect to the investment of a Fund's assets.
            The following provides summary information about each Sub-Adviser,
            including the Fund(s) it manages and its investment specialty.

<TABLE>
<CAPTION>
         Sub-Adviser*              Funds                      Investment Specialty
            ----------------------------------------------------------------------------
         <S>                       <C>                        <C>
         PIMCO Equity Advisors     Equity Income, Value,      Disciplined approach to
         division of PIMCO         Renaissance, Growth &      identifying quality growth
         Advisors ("PIMCO Equity   Income, Growth, Select     and/or undervalued
         Advisors")                Growth, Target,            companies
         1345 Avenue of the        Opportunity, Innovation
         Americas, 50th Floor      and Global Innovation
         New York, NY 10105

         PIMCO/Allianz             Allianz Select             International stocks using
         International Advisors    International              a research-driven "bottom-
         LLC ("PAIA")                                         up" approach.
         1345 Avenue of the
         Americas, 50th Floor
         New York, NY 10105

         Cadence Capital           Mega-Cap, Capital          A blend of growth
         Management ("Cadence")    Appreciation, Mid-Cap and  companies whose stock is
         Exchange Place, 53 State  Micro-Cap                  reasonably valued by the
         Street                                               market
         Boston, MA 02109

         NFJ Investment Group      Small-Cap Value            Value stocks that the Sub-
         ("NFJ")                                              Adviser believes are
         2121 San Jacinto, Suite                              undervalued and/or offer
         1840                                                 above-average dividend
         Dallas, TX 75201                                     yields

         Parametric Portfolio      Enhanced Equity, Tax-      Stocks, using
         Associates                Efficient Equity,          quantitatively-driven
         ("Parametric")            Structured Emerging        fundamental analysis and
         7310 Columbia Center,     Markets and Tax-Efficient  economic methods, with a
         701 Fifth Avenue          Structured Emerging        specialty in tax-efficient
         Seattle, WA 98104         Markets                    products

         Blairlogie Capital        International              International stocks using
         Management                                           Scottish standards of
         ("Blairlogie")                                       prudent investment
         4th Floor, 125 Princes                               management with modern
         Street                                               quantitative analytical
         Edinburgh EH2 4AD,                                   tools
         Scotland
</TABLE>
            -------
            * PIMCO Equity Advisors is a division of PIMCO Advisors. PAIA is a
              wholly-owned subsidiary of PIMCO Advisors. With the exception of
              Blairlogie, each of the other Sub-Advisers is an affiliated sub-
              partnership of PIMCO Advisors.

             The following provides additional information about each Sub-
            Adviser and the individual Portfolio Manager(s) who have or share
            primary responsibility for managing the Funds' investments.

PIMCO
Equity
Advisors
            A division of PIMCO Advisors, PIMCO Equity Advisors provides
            equity-related advisory services to mutual funds and institutional
            accounts. Accounts managed by PIMCO Equity Advisors had combined
            assets as of September 30, 2000 of approximately $14.5 billion.
            See "Investment Adviser and Administrator" above for additional
            information about PIMCO Advisors.

                                                                   Prospectus 54
<PAGE>

              The following individuals at PIMCO Equity Advisors have or share
            primary responsibility for the noted Funds. A different sub-
            advisory firm served as Sub-Adviser for each of the Growth,
            Target, Opportunity and Innovation Funds prior to March 6, 1999,
            for the Renaissance Fund prior to May 7, 1999, for the Select
            Growth and Growth & Income Funds prior to July 1, 1999, and for
            the Equity Income and Value Funds prior to May 8, 2000.

<TABLE>
<CAPTION>
                          Portfolio
         Fund             Manager(s)          Since          Recent Professional Experience
            -------------------------------------------------------------------------------------
         <S>              <C>                 <C>            <C>
         Equity Income    Kenneth W. Corba     5/00          Managing Director and Chief
                                                             Investment Officer of PIMCO Equity
                                                             Advisors and a Member of the
                                                             Management Board of PIMCO Advisors.
                                                             Prior to joining PIMCO Advisors, he
                                                             was with Eagle Asset Management from
                                                             1995 to 1998, serving in various
                                                             capacities including as Chief
                                                             Investment Officer and Portfolio
                                                             Manager. He was with Stein Roe and
                                                             Farnham Inc. from 1984 to 1995,
                                                             serving in various capacities
                                                             including as Director of the Capital
                                                             Management Group, Senior Vice
                                                             President and Portfolio Manager.

         Value            John K. Schneider    5/00          Senior Portfolio Manager of PIMCO
                                                             Equity Advisors. Prior to joining
                                                             PIMCO Advisors, he was a partner and
                                                             Portfolio Manager of Schneider
                                                             Capital Management from 1996 to
                                                             1999, where he managed equity
                                                             accounts for various institutional
                                                             clients. Prior to that he was a
                                                             member of the Equity Policy
                                                             Committee and Director of Research
                                                             at Newbold's Asset Management from
                                                             1991 to 1996.

         Renaissance      Mr. Schneider        5/99          See above.



         Growth & Income  Mr. Corba            7/99          See above.

                          Peter C. Thoms       8/00          Investment Analyst at Federated
                                                             Investors from July 1998 to May
                                                             1999. Previously, he received his
                                                             M.B.A. at the University of
                                                             Virginia's Darden School of
                                                             Business.
         Growth           Mr. Corba            5/99          See above.

         Select Growth    Messrs. Corba and    7/99          See above.
                          Schneider

         Target           Mr. Corba            3/99          See above.

                          Jeff Parker          3/99          Assistant Portfolio Manager and
                                                             Research Analyst for PIMCO Equity
                                                             Advisors. Prior to joining PIMCO
                                                             Equity Advisors, he managed equity
                                                             accounts as an Assistant Portfolio
                                                             Manager at Eagle Asset Management
                                                             from 1996 to 1998. He was a Senior
                                                             Consultant with Andersen Consulting,
                                                             specializing in healthcare and
                                                             technology, from 1991 to 1994.

         Opportunity      Michael F. Gaffney   3/99          Managing Director of PIMCO Equity
                                                             Advisors, where he manages the
                                                             Opportunity Fund and other small-cap
                                                             products. Prior to joining PIMCO
                                                             Advisors, he was with Alliance
                                                             Capital Management L.P. from 1993 to
                                                             1999, serving in various capacities
                                                             including as Senior Vice President
                                                             and Portfolio Manager.

         Innovation       Dennis P. McKechnie 10/98          Portfolio Manager of PIMCO Equity
                                                             Advisors. Prior to joining PIMCO
                                                             Advisors, he was with Columbus
                                                             Circle Investors from 1991 to 1999,
                                                             where he managed equity accounts and
                                                             served in various capacities
                                                             including as Portfolio Manager for
                                                             the Innovation Fund.

<CAPTION>
         Global           Mr. McKechnie       12/99+         See above.
         Innovation
                          Jiyoung Kim         4/00           Senior Research Analyst for PIMCO
                                                             Innovation Fund, where she covers
                                                             biotechnology, telecommunications
                                                             equipment, semiconductors and
                                                             networking. Prior to joining PIMCO
                                                             Equity Advisors in 1999, she was a
                                                             Senior Research Analyst at Fred
                                                             Alger Management from 1994 to 1999.
                                                             Prior to that, she was a Senior
                                                             Research Technician at Repligen, a
                                                             biopharmaceutical company.

</TABLE>
            -------
            + Since inception of the Fund. Prior to PIMCO Advisors and PIMCO
              Equity Advisors assuming their positions as Adviser and Sub-
              Adviser, respectively, of the Global Innovation Fund, Mr.
              McKechnie managed the Fund's portfolio in his capacity as an
              officer of the Trust.

55PIMCO Funds: Multi-Manager Series
<PAGE>

PAIA        A wholly-owned subsidiary of PIMCO Advisors, PAIA provides
            international advisory services to mutual funds. PAIA commenced
            operations during the fourth quarter of 2000. Different firms
            served as sub-adviser to the Allianz Select International Fund
            prior to November 1, 2000.

              The following individuals at PAIA share primary responsibility
            for the Allianz Select International Fund.

<TABLE>
<CAPTION>
         Fund           Portfolio Manager(s)             Since Recent Professional Experience
         ---------------------------------------------------------------------------------
         <S>           <C>                              <C>
         Allianz        Udo Frank (lead manager)         11/00 Managing Director and Chief
         Select                                                Investment Officer of Allianz
         International                                         Asset Advisory and Management
                                                               GmbH ("Allianz AAM"),
                                                               responsible for the entire
                                                               investment area (since 1997),
                                                               and Chief Executive Officer
                                                               and Chief Investment Officer
                                                               of Allianz PIMCO Asset
                                                               Management. Previously, Mr.
                                                               Frank served as the Chief
                                                               Investment Officer of Allianz
                                                               KAG (since 1994).

                        Wolfram Gerdes (co-manager)      11/00 Managing director of Equity
                                                               Portfolio Management at
                                                               Allianz AAM since 1998. Prior
                                                               to joining Allianz AAM, he
                                                               held various positions,
                                                               including head of Portfolio
                                                               Management, with Allianz
                                                               Lebensversicherungs AG from
                                                               1992 to 1998.

                        Gerd Wolfgang Hintz (co-manager) 11/00 Managing Director of the
                                                               Equity Research Department at
                                                               Allianz AAM since 1998. In
                                                               addition, he has been
                                                               responsible for Allianz AAM's
                                                               trading department since
                                                               January 2000. Previously, he
                                                               was the head of Research and
                                                               Investor Relations of Allianz
                                                               AG.
</TABLE>
Cadence     An affiliated sub-partnership of PIMCO Advisors, Cadence provides
            advisory services to mutual funds and institutional accounts.
            Cadence Capital Management Corporation, the predecessor investment
            adviser to Cadence, commenced operations in 1988. Accounts managed
            by Cadence had combined assets as of September 30, 2000 of
            approximately $6.8 billion.

              The following individuals at Cadence share primary
            responsibility for each of the noted Funds.

<TABLE>
<CAPTION>
                               Portfolio
         Fund                  Manager(s)          Since          Recent Professional Experience
         ------------------------------------------------------------------------------------------
         <S>                   <C>                 <C>            <C>
         Mega-Cap              David B. Breed       9/99*         Managing Director, Chief Executive
                                                                  Officer, Chief Investment Officer
                                                                  and founding partner of Cadence.
                                                                  Member of the Management Board of
                                                                  PIMCO Advisors. He is a research
                                                                  generalist and has lead the team of
                                                                  portfolio managers and analysts
                                                                  since 1988. Mr. Breed has managed
                                                                  separate equity accounts for many
                                                                  institutional clients and has led
                                                                  the team that manages the PIMCO
                                                                  Funds sub-advised by Cadence since
                                                                  those Funds' inception dates.

                               William B. Bannick   9/99*         Managing Director and Executive Vice
                                                                  President at Cadence. Mr. Bannick is
                                                                  a research generalist and Senior
                                                                  Portfolio Manager for the Cadence
                                                                  team. He has managed separately
                                                                  managed equity accounts for various
                                                                  Cadence institutional clients and
                                                                  has been a member of the team that
                                                                  manages the PIMCO Funds sub-advised
                                                                  by Cadence since joining Cadence in
                                                                  1992.
                               Katherine A. Burdon  9/99*         Managing Director and Senior
                                                                  Portfolio Manager at Cadence. Ms.
                                                                  Burdon is a research generalist and
                                                                  has managed separately managed
                                                                  equity accounts for various Cadence
                                                                  institutional clients and has been a
                                                                  member of the team that manages the
                                                                  PIMCO Funds sub-advised by Cadence
                                                                  since joining Cadence in 1993.
                               Peter B. McManus     9/99*         Director, Account Management at
                                                                  Cadence. He has been a member of the
                                                                  investment team at Cadence and
                                                                  handles client relationships of
                                                                  separately managed accounts, and has
                                                                  been a member of the team that
                                                                  manages the PIMCO Funds sub-advised
                                                                  by Cadence since joining Cadence in
                                                                  1994. Previously, he served as a
                                                                  Vice President of Bank of Boston
                                                                  from 1991 to 1994.
         Capital Appreciation  Mr. Breed            3/91*         See above.
                               Mr. Bannick         10/92          See above.
                               Ms. Burdon           1/93          See above.
                               Mr. McManus         10/94          See above.

         Mid-Cap               Mr. Breed            8/91*         See above.
                               Messrs. Bannick and Same as        See above.
                               McManus and         Capital
                               Ms. Burdon          Appreciation
                                                   Fund

         Micro-Cap             Messrs. Breed and    6/93*         See above.
                               Bannick and Ms.
                               Burdon

                               Mr. McManus         10/94          See above.
</TABLE>
            -------
            *Since inception of the Fund.

                                                                   Prospectus 56
<PAGE>

NFJ         An affiliated sub-partnership of PIMCO Advisors, NFJ provides
            advisory services to mutual funds and institutional accounts. NFJ
            Investment Group, Inc., the predecessor investment adviser to NFJ,
            commenced operations in 1989. Accounts managed by NFJ had combined
            assets as of September 30, 2000 of approximately $1.8 billion.

              The following individuals at NFJ share primary responsibility
            for the noted Fund.

<TABLE>
<CAPTION>
                          Portfolio
         Fund             Manager(s)          Since          Recent Professional Experience
            -------------------------------------------------------------------------------------
         <S>              <C>                 <C>            <C>
         Small-Cap Value  Chris Najork        10/91*         Managing Director and founding
                                                             partner of NFJ. He has 30 years'
                                                             experience encompassing equity
                                                             research and portfolio management.
                                                             Prior to the formation of NFJ in
                                                             1989, he was a senior vice
                                                             president, senior portfolio manager
                                                             and analyst at NationsBank, which he
                                                             joined in 1974.

                          Benno J. Fischer    10/91*         Managing Director and founding
                                                             partner of NFJ. He has 32 years'
                                                             experience in portfolio management,
                                                             investment analysis and research.
                                                             Prior to the formation of NFJ in
                                                             1989, he was chief investment
                                                             officer (institutional and fixed
                                                             income), senior vice president and
                                                             senior portfolio manager at
                                                             NationsBank, which he joined in
                                                             1971. Prior to joining NationsBank,
                                                             Mr. Fischer was a securities analyst
                                                             at Chase Manhattan Bank and Clark,
                                                             Dodge.

                          Paul A. Magnuson     7/95          Principal at NFJ. He is a Portfolio
                                                             Manager and Senior Research Analyst
                                                             with 14 years' experience in equity
                                                             analysis and portfolio management.
                                                             Prior to joining NFJ in 1992, he was
                                                             an assistant vice president at
                                                             NationsBank, which he joined in
                                                             1985. Within the Trust Investment
                                                             Qualitative Services Division of
                                                             NationsBank, he was responsible for
                                                             equity analytics and structured
                                                             fund management.

</TABLE>
            -------
            *Since inception of the Fund.

Parametric  An affiliated sub-partnership of PIMCO Advisors, Parametric
            provides advisory services to mutual funds and institutional
            accounts. Parametric Portfolio Associates, Inc., the predecessor
            investment adviser to Parametric, commenced operations in 1987.
            Accounts managed by Parametric had combined assets as of September
            30, 2000 of approximately $4.4 billion.

              The following individuals share primary responsibility for each
            of the noted Funds.

<TABLE>
<CAPTION>
                                   Portfolio
         Fund                      Manager(s)          Since          Recent Professional Experience
            ----------------------------------------------------------------------------------------------
         <S>                       <C>                 <C>            <C>
         Enhanced Equity           David Stein          7/96*         Managing Director of Parametric. He
                                                                      has been with Parametric since 1996
                                                                      where he leads the investment,
                                                                      research and product development
                                                                      activities. Previously, he served in
                                                                      Investment Research at GTE
                                                                      Corporation from 1995 to 1996, in
                                                                      Equity Research at Vanguard Group
                                                                      from 1994 to 1995 and in Investment
                                                                      Research at IBM Corporation from
                                                                      1977 to 1994.

                                   Tom Seto            10/98*         Vice President and Portfolio Manager
                                                                      of Parametric. Since joining
                                                                      Parametric in 1998, he has been
                                                                      responsible for management of
                                                                      Parametric's active U.S. equity
                                                                      strategies and has managed
                                                                      structured equity portfolios.
                                                                      Previously, he was with Barclays
                                                                      Global Investors from 1991 to 1998,
                                                                      serving in various capacities
                                                                      including as head of U.S. Equity
                                                                      Index Investments and Portfolio
                                                                      Manager.



         Tax-Efficient Equity      Messrs. Stein and    9/98*         See above.
                                   Seto

         Structured Emerging       Messrs. Stein and    6/98*         See above.
         Markets                   Seto

                                   Cliff Quisenberry    6/98*         Vice President and Global Portfolio
                                                                      Manager of Parametric. He joined
                                                                      Parametric in 1998 where he heads
                                                                      international investments in both
                                                                      developed and emerging markets.
                                                                      Previously, he served as Vice
                                                                      President and Portfolio Manager at
                                                                      Cutler & Co. from 1990 to 1994 and
                                                                      as a Securities Analyst and
                                                                      Portfolio Manager at Fred Alger
                                                                      Management from 1987 to 1998.

         Tax-Efficient Structured  Messrs. Stein, Seto  6/98*         See above.
         Emerging Markets          and Quisenberry
</TABLE>
            -------
            *Since inception of the Fund.

57PIMCO Funds: Multi-Manager Series
<PAGE>

Blairlogie  Blairlogie provides advisory services to mutual funds and
            institutional accounts. Blairlogie Capital Management Ltd., the
            predecessor investment adviser to Blairlogie, commenced operations
            in 1992. Accounts managed by Blairlogie had combined assets as of
            September 30, 2000 of approximately $1.0 billion.

             Blairlogie is an indirect majority-owned subsidiary of the
            Alleghany Corporation, and is not an affiliate of PIMCO Advisors.
            Blairlogie was formerly an affiliated sub-partnership of PIMCO
            Advisors. On April 30, 1999, PIMCO Advisors sold all of its
            ownership interest in Blairlogie to subsidiaries of the Alleghany
            Corporation. PIMCO Advisors retained Blairlogie as the Sub-Adviser
            of the International Fund both prior and subsequent to this
            transaction.

            The following individual at Blairlogie has primary responsibility
            for the International Fund.

<TABLE>
<CAPTION>
         Fund           Portfolio Manager Since Recent Professional Experience
         --------------------------------------------------------------------------
         <S>            <C>               <C>   <C>
         International  James Smith       11/94 Chief Investment Officer of Blairlogie
                                                since 1992, responsible for setting
                                                investment policy, asset allocation,
                                                managing the investment team and stock
                                                selection in Latin America.
</TABLE>

Adviser/Sub-Adviser
Relationship
            Shareholders of each Fund (except the Innovation, Mid-Cap and
            Micro-Cap Funds) have approved a proposal permitting PIMCO
            Advisors to enter into new or amended sub-advisory agreements with
            one or more sub-advisers with respect to each Fund without
            obtaining shareholder approval of such agreements, subject to the
            conditions of an exemptive order that has been granted by the
            Securities and Exchange Commission. One of the conditions requires
            the Board of Trustees to approve any such agreement. In addition,
            the exemptive order prohibits PIMCO Advisors from entering into
            sub-advisory agreements with affiliates of PIMCO Advisors without
            shareholder approval, unless those affiliates are substantially
            wholly-owned by PIMCO Advisors. PIMCO Advisors has the ultimate
            responsibility to oversee the Sub-Advisers and to recommend their
            hiring, termination and replacement.

Distributor The Trust's Distributor is PIMCO Funds Distributors LLC, a wholly
            owned subsidiary of PIMCO Advisors. The Distributor, located at
            2187 Atlantic Street, Stamford, Connecticut 06902, is a broker-
            dealer registered with the Securities and Exchange Commission.

                                                                   Prospectus 58
<PAGE>

            Investment Options --
            Institutional Class and Administrative Class Shares

            The Trust offers investors Institutional Class and Administrative
            Class shares of the Funds in this Prospectus.

             The Trust does not charge any sales charges (loads) or other fees
            in connection with purchases, sales (redemptions) or exchanges of
            Institutional Class or Administrative Class shares, except that a
            1.00% Fund Reimbursement Fee may apply to transactions involving
            shares of the Structured Emerging Markets and Tax-Efficient
            Structured Emerging Markets Funds. See "Purchases, Redemptions and
            Exchanges--Fund Reimbursement Fees" below.

             Administrative Class shares are generally subject to a higher
            level of operating expenses than Institutional Class shares due to
            the additional service and/or distribution fees paid by
            Administrative Class shares as described below. Therefore,
            Institutional Class shares will generally pay higher dividends and
            have a more favorable investment return than Administrative Class
            shares.

              . Service and Distribution (12b-1) Fees--Administrative Class
            Shares. The Trust has adopted an Administrative Services Plan for
            the Administrative Class shares of each Fund. It has also adopted
            a Distribution Plan for the Administrative Class shares of each
            Fund. Each Plan has been adopted in accordance with the
            requirements of Rule 12b-1 under the Investment Company Act of
            1940 and is administered in accordance with that rule. However,
            shareholders do not have the voting rights set forth in Rule 12b-1
            with respect to the Administrative Services Plan.

             Each Plan allows the Funds to use its Administrative Class assets
            to reimburse financial intermediaries that provide services
            relating to Administrative Class shares. The Distribution Plan
            permits reimbursement for expenses in connection with the
            distribution and marketing of Administrative Class shares and/or
            the provision of shareholder services to Administrative Class
            shareholders. The Administrative Services Plan permits
            reimbursement for services in connection with the administration
            of plans or programs that use Administrative Class shares of the
            Funds as their funding medium and for related expenses.

             In combination, the Plans permit a Fund to make total
            reimbursements at an annual rate of up to 0.25% of the Fund's
            average daily net assets attributable to its Administrative Class
            shares. The same entity may not receive both distribution and
            administrative services fees with respect to the same
            Administrative Class assets, but may receive fees under each Plan
            with respect to separate assets. Because these fees are paid out
            of a Fund's Administrative Class assets on an ongoing basis, over
            time they will increase the cost of an investment in
            Administrative Class shares and may cost an investor more than
            other types of sales charges.

              . Arrangements with Service Agents. Institutional Class and
            Administrative Class shares of the Funds may 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 and/or
            distribution fees paid with respect to Administrative Class
            shares. Service agents may impose additional or different
            conditions than the Trust on purchases, redemptions or exchanges
            of Fund shares by their customers. Service agents may also
            independently establish and charge their customers transaction
            fees, account fees and other amounts in connection with purchases,
            sales and redemptions of Fund shares in addition to any fees
            charged by the Trust. These additional fees may vary over time and
            would increase the cost of the customer's investment and lower
            investment returns. 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, redemptions and exchanges. Shareholders who
            are customers of service agents should consult their service
            agents for information regarding these fees and conditions.

59 PIMCO Funds: Multi-Manager Series
<PAGE>

            Purchases, Redemptions and Exchanges

Purchasing  Investors may purchase Institutional Class and Administrative
Shares      Class shares of the Funds at the relevant net asset value ("NAV")
            of that class without a sales charge or other fee, except that a
            1.00% Fund Reimbursement Fee may apply to transactions involving
            shares of the Structured Emerging Markets and Tax-Efficient
            Structured Emerging Markets Funds. See "Fund Reimbursement Fees"
            below.

             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 their
            customers' investments in the Funds.

             Administrative Class shares are offered primarily through
            employee benefit plan alliances, broker-dealers and other
            intermediaries, and each Fund pays service and/or distribution
            fees to these entities for services they provide to Administrative
            Class shareholders.

             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.

              . Investment Minimums. 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. At the discretion of PIMCO
            Advisors, the minimum initial investment may be waived for
            Institutional or Administrative Class shares offered to clients of
            PIMCO Equity Advisors, PAIA, Cadence, NFJ, Pacific Investment
            Management Company, 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 Institutional
            Class shares offered through fee-based programs sponsored and
            maintained by a registered broker-dealer and approved by the
            Distributor in which each investor pays an asset based fee at an
            annual rate of at least 0.50% of the assets in the account to a
            financial intermediary for investment advisory and/or
            administrative services.

             The Trust and the Distributor may waive the minimum initial
            investment for other categories of investors at their discretion.

             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.

              . Timing of Purchase Orders and Share Price Calculations. A
            purchase order received by the Trust's transfer agent, National
            Financial Data Services (the "Transfer Agent"), prior to the close
            of regular trading (normally 4:00 p.m., Eastern time) on the New
            York Stock Exchange, on a day the Trust is open for business,
            together with payment made in one of the ways described below,
            will be effected at that day's net asset value ("NAV"). An order
            received after the close of regular trading on the New York Stock
            Exchange will be effected at the NAV 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 New York Stock 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 NAV
            determined on the prior business day. The Trust is "open for
            business" on each day the New York Stock 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.

                                                                   Prospectus 60
<PAGE>

              . Initial Investment. Investors may open an account by
            completing and signing a Client Registration Application and
            mailing it to PIMCO Funds at 840 Newport Center Drive, Suite 300,
            Newport Beach, California 92660. A Client Registration Application
            may be obtained by calling 1-800-927-4648.

             Except as described below, an investor may purchase Institutional
            Class and Administrative Class shares only by wiring federal funds
            to the Transfer Agent, National Financial Data Services, 330 West
            9th Street, 4th Floor, Kansas City, Missouri 64105. Before wiring
            federal funds, the investor must telephone the Trust at 1-800-927-
            4648 to receive instructions for wire transfer and must provide
            the following information: name of authorized person, shareholder
            name, shareholder account number, name of Fund and share class,
            amount being wired, and wiring bank name.

             An investor may purchase shares without first wiring federal
            funds if the proceeds of the investment are derived from an
            advisory account the investor maintains 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 LLC, 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.

              . Additional Investments. An investor may purchase additional
            Institutional Class and Administrative Class shares of the Funds
            at any time by calling the Trust and wiring federal funds to the
            Transfer Agent as outlined above.

              . 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.

             An investor should invest in the Funds for long-term investment
            purposes only. The Trust and PIMCO Advisors 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. Notice of
            any such restrictions, if any, will vary according to the
            particular circumstances.

             Institutional Class and Administrative Class shares of the Trust
            may not be qualified or registered for sale in all states.
            Investors should inquire as to whether shares of a particular Fund
            are available for offer and sale in the investor's 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.

             Subject to the approval of the Trust, an investor may purchase
            shares of a Fund with liquid securities that are eligible for
            purchase by the Fund (consistent with the 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 PIMCO Advisors or a
            Sub-Adviser intends to retain the security in the Fund as an
            investment. Assets purchased by a Fund in such a transaction 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.

              . 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 Fund as an
            investment option. Participants in a retirement or savings plan
            may be permitted to elect different investment options, alter the
            amounts

61PIMCO Funds: Multi-Manager Series
<PAGE>

            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.

              . 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
            "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 Fees are not paid
            separately, but are deducted automatically from the amount
            invested or the amount to be received in connection with a
            redemption. Fund Reimbursement Fees are paid to and retained by
            the Funds to defray certain costs described below and are not paid
            to or retained by PIMCO Advisors, the Fund's Sub-Adviser, or the
            Distributor. 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 and
            exchanges of shares acquired by these reinvestments are subject to
            Fund Reimbursement Fees unless a waiver applies.

             The purpose of the Fund Reimbursement Fees is to defray the costs
            associated with investing the proceeds of the sale of the Fund's
            shares (in the case of purchases) or the costs associated with the
            sale of portfolio securities to satisfy redemption requests (in
            the case of redemptions), thereby insulating existing shareholders
            from such costs. The amount of a Fund Reimbursement Fee represents
            the Sub-Adviser'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. 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.

             Waiver of Fund Reimbursement Fees. Former participants in the
            Parametric Portfolio Associates Emerging Markets Trust will not be
            subject to Fund Reimbursement Fees with respect to any shares of
            the Structured Emerging Markets and Tax-Efficient Structured
            Emerging Markets 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.

Redeeming
Shares
              . Redemptions by Mail. An investor may redeem (sell)
            Institutional Class and Administrative Class shares by submitting
            a written request to PIMCO Funds at 840 Newport Center Drive,
            Suite 300, Newport Beach, California 92660. The redemption request
            should state 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,

                                                                   Prospectus 62
<PAGE>

            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. An
            investor that elects this option on the Client Registration
            Application (or subsequently in writing) may request redemptions
            of shares by calling the Trust at 1-800-927-4648, by sending a
            facsimile to 1-949-725-6830, by sending an e-mail to
            [email protected] 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, the account number and the signature
            (which may be an electronic signature) of an authorized signatory.
            Redemption requests of an amount of $10 million or more may be
            initiated by telephone or e-mail, but must be confirmed in writing
            by an authorized party prior to processing.

             In electing a telephone redemption, the investor authorizes
            Pacific Investment Management Company 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 Company or the Transfer Agent to be genuine. Neither
            the Trust nor the 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 or e-mail 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
            service may mean that a shareholder will be unable to effect a
            redemption by telephone or e-mail 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 or via e-mail). All
            telephone transactions are recorded, and Pacific Investment
            Management Company or the Transfer Agent may request certain
            information in order to verify that the person giving instructions
            is authorized to do so. The Trust or Transfer Agent may be liable
            for any losses due to unauthorized or fraudulent telephone
            transactions if it fails to employ reasonable procedures to
            confirm that instructions communicated by telephone are genuine.
            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 "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.

              . Other Redemption Information. Redemption requests for Fund
            shares are effected at the NAV per share next determined after
            receipt of a redemption request by the Trust or its designee. The
            request must properly identify all relevant information, such as
            account number, redemption amount (in dollars or shares) and the
            Fund name, and must be executed or initialed by the appropriate
            signatories. A redemption request received by the Trust or its
            designee prior to the close of regular trading on the New York
            Stock 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 NAV of the shares redeemed. See "Fund
            Reimbursement Fees" above.

63PIMCO Funds: Multi-Manager Series
<PAGE>

             Redemption proceeds 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 New York
            Stock 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, 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.

             Redemptions of Fund shares may be suspended when trading on the
            New York Stock 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 assets,
            or during any other period as permitted by the Securities and
            Exchange Commission for the protection of investors. Under these
            and other unusual circumstances, the Trust may suspend redemptions
            or postpone payment for more than seven days, as permitted by law.

Exchange    Except as provided below, an investor may exchange Institutional
Privilege   Class or Administrative Class shares of a Fund for shares of the
            same class of any other Fund or other series of the Trust that
            offers that class based on the respective NAVs of the shares
            involved. An exchange may be made by following the redemption
            procedure described above under "Redemptions by Mail" or, if the
            investor has elected the telephone redemption option, by calling
            the Trust at 1-800-927-4648. An investor may also exchange shares
            of a Fund 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 Company, subject to any restrictions
            on exchanges set forth in the applicable series' prospectus(es).
            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.

                                                                   Prospectus 64
<PAGE>

             Unless eligible for a waiver, shareholders who exchange their
            Institutional Class or Administrative Class shares of a Fund for
            the same class of shares of the Structured Emerging Markets or
            Tax-Efficient Structured Emerging Markets Fund will be subject to
            a Fund Reimbursement Fee of 1.00% of the NAV of the shares of
            these Funds acquired in connection with the exchange. Also,
            shareholders who exchange shares of the Structured Emerging
            Markets Fund or Tax-Efficient Structured Emerging Markets Fund for
            shares of any other Fund will be subject to a Fund Reimbursement
            Fee of 1.00% of the NAV of the shares of these Funds redeemed in
            connection with the exchange. See "Fund Reimbursement Fees" above.

             An investor may exchange shares only with respect to Funds or
            other eligible series that are registered in the investor's state
            of residence or where an exemption from registration is available.
            In addition, an exchange is generally a taxable event which will
            generate capital gains or losses, and special rules may apply in
            computing tax basis when determining gain or loss. See "Tax
            Consequences" in this Prospectus and "Taxation" in the Statement
            of Additional Information.

             The Trust reserves the right to refuse exchange purchases if, in
            the judgment of PIMCO Advisors, 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 PIMCO Advisors to be detrimental to the Trust or a
            particular Fund. Currently, the Trust limits the number of "round
            trip" exchanges investors 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 PIMCO 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. The Trust reserves the right
            to impose additional restrictions on exchanges at any time,
            although it will attempt to give shareholders 30 days' prior
            notice whenever it is reasonably able to do so.

            How Fund Shares Are Priced

             The net asset value ("NAV") of a Fund's Institutional and
            Administrative Class shares is determined by dividing the total
            value of a Fund's portfolio investments and other assets
            attributable to that class, less any liabilities, by the total
            number of shares outstanding of that class.

             For purposes of calculating the NAV, portfolio securities and
            other assets for which market quotes are available are stated at
            market value. Market value is generally determined on the basis of
            last reported sales prices, or if no sales are reported, based on
            quotes obtained from a quotation reporting system, established
            market makers, or pricing services. Certain securities or
            investments for which daily market quotes are not readily
            available may be valued, pursuant to procedures established by the
            Board of Trustees, with reference to other securities or indices.
            Short-term investments having a maturity of 60 days or less are
            generally valued at amortized cost. Exchange traded options,
            futures and options on futures are valued at the settlement price
            determined by the exchange. Other securities for which market
            quotes are not readily available are valued at fair value as
            determined in good faith by the Board of Trustees or persons
            acting at their direction.

             Investments initially valued in currencies other than the U.S.
            dollar are converted to U.S. dollars using exchange rates obtained
            from pricing services. As a result, the NAV of a Fund's shares may
            be affected by changes in the value of currencies in relation to
            the U.S. dollar. The value of securities traded in markets outside
            the United States or denominated in currencies other than the U.S.
            dollar may be affected significantly on a day that the New York
            Stock Exchange is closed and an investor is not able to purchase,
            redeem or exchange shares. In particular, calculation of the NAV
            of the Global Innovation, Allianz Select International, Structured
            Emerging Markets, Tax-Efficient Structured Emerging Markets and
            International Funds may not take place contemporaneously with the
            determination of the prices of foreign securities used in NAV
            calculations.

65PIMCO Funds: Multi-Manager Series
<PAGE>

             Fund shares are valued at the close of regular trading (normally
            4:00 p.m., Eastern time) (the "NYSE Close") on each day that the
            New York Stock Exchange is open. For purposes of calculating the
            NAV, the Funds normally use pricing data for domestic equity
            securities received shortly after the NYSE Close and do not
            normally take into account trading, clearances or settlements that
            take place after the NYSE Close. Domestic fixed income and foreign
            securities are normally priced using data reflecting the earlier
            closing of the principal markets for those securities. Information
            that becomes known to the Funds or their agents after the NAV has
            been calculated on a particular day will not generally be used to
            retroactively adjust the price of a security or the NAV determined
            earlier that day.

             In unusual circumstances, instead of valuing securities in the
            usual manner, the Funds may value securities at fair value or
            estimate their value as determined in good faith by the Board of
            Trustees or persons acting at their direction pursuant to
            procedures approved by the Board of Trustees. Fair valuation may
            also be used by the Board of Trustees if extraordinary events
            occur after the close of the relevant market but prior to the NYSE
            Close.

             Under certain circumstances, the per share NAV of the
            Administrative Class shares of the Funds may be lower than the per
            share NAV of the Institutional Class shares as a result of the
            daily expense accruals of the service and/or distribution fees
            paid by 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 the two classes.

            Fund Distributions

            Each Fund distributes substantially all of its net investment
            income to shareholders in the form of dividends. A shareholder
            begins earning dividends on Fund shares the day after the Trust
            receives the shareholder's purchase payment. Dividends paid by
            each Fund with respect to each class of shares are calculated in
            the same manner and at the same time, but dividends on
            Administrative Class shares are expected to be lower than
            dividends on Institutional Class shares as a result of the service
            and/or distribution fees applicable to Administrative Class
            shares. The following shows when each Fund intends to declare and
            distribute income dividends to shareholders of record.

<TABLE>
<CAPTION>
          Fund                      At Least Annually                 Quarterly
            -------------------------------------------------------------------
         <S>                        <C>                           <C>
          Equity Income Fund                                              .
            -------------------------------------------------------------------
          All other Funds                  .
            -------------------------------------------------------------------
</TABLE>

             In addition, each Fund distributes any net capital gains it earns
            from the sale of portfolio securities to shareholders no less
            frequently than annually. Net short-term capital gains may be paid
            more frequently.

             A Fund's dividend and capital gain distributions with respect to
            a particular class of shares will automatically be reinvested in
            additional shares of the same class of the Fund at NAV unless the
            shareholder elects to have the distributions paid in cash. A
            shareholder may elect to have distributions paid in cash on the
            Client Registration Application or by submitting a written
            request, signed by the appropriate signatories, indicating the
            account number, Fund name(s) and wiring instructions.

             Shareholders do not pay any sales charges or other fees
            (including Fund Reimbursement Fees) on the receipt of shares
            received through the reinvestment of Fund distributions. However,
            shareholders of the Structured Emerging Markets and Tax-Efficient
            Structured Emerging Markets Funds who receive additional shares
            through the reinvestment of distributions will pay a Fund
            Reimbursement Fee if they subsequently redeem or exchange those
            shares. See "Purchases, Redemptions and Exchanges--Fund
            Reimbursement Fees."

             For further information on distribution options, please contact
            the Trust at 1-800-927-4648.

                                                                   Prospectus 66
<PAGE>

            Tax Consequences

              . Taxes on Fund Distributions. A shareholder subject to U.S.
            federal income tax will be subject to tax on Fund distributions
            whether they are paid in cash or reinvested in additional shares
            of the Funds. For federal income tax purposes, Fund distributions
            will be taxable to the shareholder as either ordinary income or
            capital gains.

             Fund dividends (i.e., distributions of investment income) are
            taxable to shareholders as ordinary income. Federal taxes on Fund
            distributions of gains are determined by how long the Fund owned
            the investments that generated the gains, rather than how long the
            shareholder owned the shares. Distributions of gains from
            investments that a Fund owned for more than 12 months will
            generally be taxable to shareholders as capital gains.
            Distributions of gains from investments that the Fund owned for 12
            months or less will generally be taxable as ordinary income.

             Fund distributions are taxable to shareholders even if they are
            paid from income or gains earned by a Fund prior to the
            shareholder's investment and thus were included in the price paid
            for the shares. For example, a shareholder who purchases shares on
            or just before the record date of a Fund distribution will pay
            full price for the shares and may receive a portion of his or her
            investment back as a taxable distribution.

              . Taxes on Redemptions or Exchanges of Shares. Any gain
            resulting from the sale of Fund shares will generally be subject
            to federal income tax. When a shareholder exchanges shares of a
            Fund for shares of another series, the transaction generally will
            be treated as a sale of the Fund shares for these purposes, and
            any gain on those shares will generally be subject to federal
            income tax.

              . A Note on the Tax-Efficient Equity and Tax-Efficient
            Structured Emerging Markets Funds. The Tax-Efficient Equity and
            Tax-Efficient Structured Emerging Markets Funds utilize a number
            of tax-efficient management techniques designed to minimize
            taxable distributions. For instance, the Funds generally seek to
            minimize realized gains and, when realizing gains, attempt to
            realize gains that will be taxed as capital gains (i.e., as gains
            on investments owned for more than 12 months) when distributed to
            shareholders. Although the Funds attempt to minimize taxable
            distributions, they may be expected to earn and distribute taxable
            income and realize and distribute capital gains from time to time.

              . A Note on Foreign Investments. A Fund's investment in foreign
            securities may be subject to foreign withholding taxes. In that
            case, the Fund's yield on those securities would be decreased. In
            addition, a Fund's investments in foreign securities or foreign
            currencies may increase or accelerate the Fund's recognition of
            ordinary income and may affect the timing or amount of the Fund's
            distributions. Shareholders of the Global Innovation, Allianz
            Select International, Structured Emerging Markets, Tax-Efficient
            Structured Emerging Markets and International Funds may be
            entitled to claim a credit or deduction with respect to foreign
            taxes.

             This section relates only to federal income tax; the consequences
            under other tax laws may differ. Shareholders should consult their
            tax advisors as to the possible application of foreign, state and
            local income tax laws to Fund dividends and capital distributions.
            Please see the Statement of Additional Information for additional
            information regarding the tax aspects of investing in the Funds.
  PIMCO Funds: Multi-Manager Series
67
<PAGE>

            Characteristics and Risks of Securities and Investment Techniques

            This section provides additional information about some of the
            principal investments and related risks of the Funds identified
            under "Summary Information" above. It also describes
            characteristics and risks of additional securities and investment
            techniques that are not necessarily principal investments or
            strategies but may be used by the Funds from time to time. Most of
            these securities and investment techniques are discretionary,
            which means that the portfolio managers can decide whether to use
            them or not. This Prospectus does not attempt to disclose all of
            the various types of securities and investment techniques that may
            be used by the Funds. As with any mutual fund, investors in the
            Funds must rely on the professional investment judgment and skill
            of PIMCO Advisors, the Sub-Advisers and the individual portfolio
            managers. Please see "Investment Objectives and Policies" in the
            Statement of Additional Information for more detailed information
            about the securities and investment techniques described in this
            section and about other strategies and techniques that may be used
            by the Funds.

Fixed       Fixed income securities are obligations of the issuer to make
Income      payments of principal and/or interest on future dates, and include
Securities  corporate and government bonds, notes, certificates of deposit,
and         commercial paper, convertible securities and mortgage-backed and
Defensive   other asset-backed securities.
Strategies

             Aside from the cash management practices described below, the
            Mega-Cap, Capital Appreciation, Mid-Cap, Micro-Cap, Enhanced
            Equity and Tax-Efficient Equity Funds intend to be as fully
            invested in common stocks as practicable at all times. The
            Structured Emerging Markets and Tax-Efficient Structured Emerging
            Markets Funds normally invest substantially all of their assets in
            common stocks and other equity and equity-linked securities, but
            may invest up to 5% of their assets in fixed income securities of
            emerging market issuers. For cash management purposes, each of
            these Funds may maintain a portion of its assets (normally not
            more than 10%) in U.S. Government securities, high quality fixed
            income securities, money market obligations and cash to pay
            certain Fund expenses and to meet redemption requests. None of the
            Funds listed in this paragraph will make defensive investments in
            response to unfavorable market and other conditions and therefore
            may be particularly vulnerable to general declines in stock prices
            and/or other categories of securities in which they invest.

             Under normal circumstances, the Small-Cap Value Fund intends to
            be fully invested in common stocks (aside from cash management
            practices), except that the Fund may temporarily hold up to 10% of
            its assets in cash and cash equivalents for defensive purposes in
            response to unfavorable market and other conditions. The Equity
            Income, Value, Renaissance, Growth, Select Growth, Target,
            Opportunity, Innovation, Global Innovation, Allianz Select
            International and International Funds will each invest primarily
            in common stocks, and may also invest in other kinds of equity
            securities, including preferred stocks and securities (including
            fixed income securities and warrants) convertible into or
            exercisable for common stocks. Each of these Funds may invest a
            portion of its assets in fixed income securities. These Funds may
            temporarily hold up to 100% of their assets in short-term U.S.
            Government securities and other money market instruments for
            defensive purposes in response to unfavorable market and other
            conditions. The Growth & Income Fund will invest primarily in
            common stocks, but may also invest significant portions of its
            assets in preferred stocks, fixed income securities, convertible
            securities and real estate investment trusts, or "REITs." The
            Growth & Income Fund may temporarily hold up to 100% of its assets
            in short-term U.S. Government securities and other money market
            instruments for defensive purposes in response to unfavorable
            market and other conditions. The Allianz Select International and
            International Funds may also hold up to 100% of their assets in
            other domestic fixed income, foreign fixed income and equity
            securities principally traded in the U.S., including obligations
            issued or guaranteed by a foreign government or its agencies,
            authorities or instrumentalities, corporate bonds and

                                                                   Prospectus 68
<PAGE>

            American Depository Receipts, for temporary defensive purposes.
            The temporary defensive strategies described in this paragraph
            would be inconsistent with the investment objective and principal
            investment strategies of each of the noted Funds and may adversely
            affect the Fund's ability to achieve its investment objective.

Companies   Each of the Funds may invest in securities of companies with
With        market capitalizations that are small compared to other publicly
Smaller     traded companies. The Micro-Cap Fund, in particular, and the
Market      Opportunity and Small-Cap Value Funds generally invest primarily
Capitaliza- in smaller companies and are especially sensitive to the risks
tions       described below. In addition, the Innovation and Global Innovation
            Funds generally have substantial exposure to these risks. The
            Target, Growth & Income, Allianz Select International and Mid-Cap
            Funds also have significant exposure to these risks because they
            invest primarily in companies with medium-sized market
            capitalizations, which are smaller and generally less well-known
            or seasoned than the largest companies.

             Companies which are smaller and less well-known or seasoned than
            larger, more widely held companies may offer greater opportunities
            for capital appreciation, but may also involve risks different
            from, or greater than, risks normally associated with larger
            companies. Larger 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 than smaller
            companies. Smaller companies may have limited product lines,
            markets or financial resources or may depend on a small,
            inexperienced management group. Securities of smaller companies
            may trade less frequently and in lesser volume than more widely
            held securities and their values may fluctuate more abruptly or
            erratically than securities of larger companies. They may also
            trade in the over-the-counter market or on a regional exchange, or
            may otherwise have limited liquidity. These securities may
            therefore be more vulnerable to adverse market developments than
            securities of larger companies. Also, there may be less publicly
            available information about smaller companies or less market
            interest in their securities as compared to larger companies, and
            it may take longer for the prices of the securities to reflect the
            full value of a company's earnings potential or assets.

             Because securities of smaller companies may have limited
            liquidity, a Fund may have difficulty establishing or closing out
            its positions in smaller companies at prevailing market prices. 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. For these reasons, 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 smaller capitalization securities, which
            could adversely affect performance.

Initial     The Funds, particularly the Global Innovation Fund, may purchase
Public      securities in initial public offerings (IPOs). These securities
Offerings   are subject to many of the same risks of investing in companies
            with smaller market capitalizations. Securities issued in IPOs
            have no trading history, and information about the companies may
            be available for very limited periods. In addition, the prices of
            securities sold in IPOs may be highly volatile. At any particular
            time or from time to time a Fund may not be able to invest in
            securities issued in IPOs, or invest to the extent desired,
            because, for example, only a small portion (if any) of the
            securities being offered in an IPO may be made available to the
            Fund. In addition, under certain market conditions a relatively
            small number of companies may issue securities in IPOs. Similarly,
            as the number of Funds to which IPO securities are allocated
            increases, the number of securities issued to any one Fund may
            decrease. The investment performance of a Fund during periods when
            it is unable to invest significantly or at all in IPOs may be
            lower than during periods when the Fund is able to do so. In
            addition, as a Fund increases in size, the impact of IPOs on the
            Fund's performance will generally decrease.

69 PIMCO Funds: Multi-Manager Series
<PAGE>

Foreign     The Allianz Select International, Structured Emerging Markets,
(non-       Tax-Efficient Structured Emerging Markets and International Funds
U.S.)       normally invest principally in securities of foreign issuers,
Securities  securities traded principally in securities markets outside the
            United States and/or securities denominated in foreign currencies
            (together, "foreign securities"). The Global Innovation Fund will
            invest in the securities of issuers located in at least three
            countries (one of which may be the United States). The Equity
            Income, Value, Renaissance, Growth & Income, Growth, Target,
            Opportunity and Innovation Funds may invest up to 15% of their
            respective assets in foreign securities. The Select Growth Fund
            may invest up to 25% of its assets in foreign securities. Each of
            these Funds may invest without limit in ADRs (defined below). The
            Enhanced Equity and Tax-Efficient Equity Funds may invest in
            common stocks of foreign issuers if included in the S&P 500 Index.

             All of the Funds may invest in American Depository Receipts
            (ADRs). In addition, the Equity Income, Value, Renaissance, Growth
            & Income, Growth, Select Growth, Target, Opportunity, Innovation,
            Global Innovation, Allianz Select International, Structured
            Emerging Markets, Tax-Efficient Structured Emerging Markets and
            International Funds may invest in European Depository Receipts
            (EDRs) and Global Depository Receipts (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 traded in public or private markets in
            other countries.

             Investing in foreign securities involves special risks and
            considerations not typically associated with investing in U.S.
            securities and shareholders should consider carefully the
            substantial risks involved for Funds that invest in these
            securities. These risks include: differences in accounting,
            auditing and financial reporting standards; generally higher
            commission rates on foreign portfolio transactions; the
            possibility of nationalization, expropriation or confiscatory
            taxation; adverse changes in investment or exchange control
            regulations; and political instability. 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 foreign securities
            markets may change independently of each other. Also, 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. Investments in foreign
            securities may also involve higher custodial costs than domestic
            investments and additional transaction costs with respect to
            foreign currency conversions. Changes in foreign exchange rates
            also will affect the value of securities denominated or quoted in
            foreign currencies.

Emerging    Each of the Funds that may invest in foreign securities may invest
Market      in securities of issuers based in or that trade principally in
Securities  countries with developing (or "emerging market") economies. The
            Structured Emerging Markets and Tax-Efficient Structured Emerging
            Markets Funds normally invest most of their assets in emerging
            market securities. The Global Innovation, Allianz Select
            International and International Funds may also invest significant
            portions of their assets in emerging market securities. Investing
            in emerging market securities imposes risks different from, or
            greater than, risks of investing in domestic securities or in
            foreign, developed countries. These risks include: smaller market
            capitalization of securities markets, which may suffer periods of
            relative illiquidity; significant price volatility; restrictions
            on foreign investment; and possible repatriation of investment
            income and capital. In addition, foreign investors may be required
            to register the proceeds of sales, and future economic or
            political crises could lead to price controls, forced mergers,
            expropriation or confiscatory taxation, seizure, nationalization
            or the creation of government monopolies. The currencies of
            emerging market countries may experience significant declines
            against the U.S. dollar, and devaluation may

                                                                   Prospectus 70
<PAGE>

            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.

             Additional risks of emerging market securities may include:
            greater social, economic and political uncertainty and
            instability; more substantial governmental involvement in the
            economy; less governmental supervision and regulation;
            unavailability of currency hedging techniques; companies that are
            newly organized and small; differences in auditing and financial
            reporting standards, which may result in unavailability of
            material information about issuers; and less developed legal
            systems. 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 be delayed 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. Each of the Global Innovation, Allianz Select
            International, Structured Emerging Markets, Tax-Efficient
            Structured Emerging Markets and International Funds may invest a
            significant portion of its 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.

Foreign     A Fund that invests directly in foreign currencies or in
Currencies  securities that trade in, and receive revenues in, foreign
            currencies will be subject to currency risk. The Global
            Innovation, Allianz Select International, Structured
            Emerging Markets, Tax-Efficient Structured Emerging Markets and
            International Funds are particularly sensitive to this risk.

             Foreign currency exchange rates may fluctuate significantly over
            short periods of time. They generally are determined by supply and
            demand and the relative merits of investments in different
            countries, actual or perceived changes in interest rates and other
            complex factors. 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. For example, uncertainty
            surrounds the introduction of the euro (a common currency unit for
            the European Union) and the effect it may have on the value of
            European currencies as well as securities denominated in local
            European currencies. The euro 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.

             Foreign Currency Transactions. The Equity Income, Value,
            Renaissance, Growth & Income, Growth, Select Growth, Target,
            Opportunity, Innovation, Global Innovation, Allianz Select
            International, Structured Emerging Markets, Tax-Efficient
            Structured Emerging Markets and International Funds may enter into
            forward foreign currency exchange contracts, primarily to reduce
            the risks of adverse changes in foreign exchange rates. In
            addition, the Global Innovation, Allianz Select International,
            Structured Emerging Markets, Tax-Efficient Structured Emerging
            Markets and International Funds may buy and sell foreign currency
            futures contracts and options on foreign currencies and foreign
            currency futures. A forward foreign currency exchange contract,

71PIMCO Funds: Multi-Manager Series
<PAGE>

            which involves an obligation to purchase or sell a specific
            currency at a future date at a price set at the time of the
            contract, reduces a Fund's 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 receive for the duration of the
            contract. The effect on the value of a Fund is similar to selling
            securities denominated in one currency and purchasing securities
            denominated 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 to hedge 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 Global Innovation, Allianz Select International, Structured
            Emerging Markets, Tax-Efficient Structured Emerging Markets and
            International Funds may also enter into these 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, a 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
            Global Innovation, Allianz Select International, Structured
            Emerging Markets, Tax-Efficient Structured Emerging Markets and
            International Funds may use one currency (or basket of currencies)
            to hedge against adverse changes in the value of another currency
            (or basket of currencies) when exchange rates between the two
            currencies are positively correlated. Each Fund will segregate
            assets determined to be liquid by PIMCO Advisors or a Sub-Adviser
            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.

Corporate   Each Fund that may invest in fixed income securities may invest in
Debt        corporate debt securities. The Growth & Income Fund may invest up
Securities  to 10% of its assets in these securities. Corporate debt
            securities are subject to the risk of the issuer's inability to
            meet principal and interest payments on the obligation and may
            also be subject to price volatility due to factors such as
            interest rate sensitivity, market perception of the
            creditworthiness of the issuer and general market liquidity. When
            interest rates rise, the value of corporate debt securities can be
            expected to decline. Debt securities with longer durations tend to
            be more sensitive to interest rate movements than those with
            shorter durations.

Convertible Each Fund may invest in convertible securities. The Growth &
Securities  Income Fund may place particular emphasis on convertible
            securities. Convertible securities are generally preferred stocks
            and other securities, including fixed income securities and
            warrants, that are convertible into or exercisable for common
            stock at either a stated price or a stated rate. The price of a
            convertible security will normally vary in some proportion to
            changes in the price of the underlying common stock because of
            this conversion or exercise feature. However, the value of a
            convertible security may not increase or decrease as rapidly as
            the underlying common stock. A convertible security will normally
            also provide income and is subject to interest rate risk. 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. Also, a Fund may be forced to convert
            a security before it would otherwise choose, which may have an
            adverse effect on the Fund's ability to achieve its investment
            objective.

Derivatives Each Fund (except the Mega-Cap, Capital Appreciation, Mid-Cap,
            Micro-Cap and Small-Cap Value Funds) may, but is not required to,
            use a number of derivative instruments for risk management
            purposes or as part of its investment strategies. 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. A
            portfolio manager may decide not to employ any of these strategies
            and there is no assurance that any derivatives strategy used by a
            Fund will

                                                                   Prospectus 72
<PAGE>

            succeed. In addition, suitable derivative transactions may not be
            available in all circumstances and there can be no assurance that
            a Fund will engage in these transactions to reduce exposure to
            other risks when that would be beneficial.

             Examples of derivative instruments include options contracts,
            futures contracts, options on futures contracts and swap
            agreements. The Equity Income, Value, Renaissance, Growth &
            Income, Growth, Select Growth, Target, Opportunity, Innovation,
            Global Innovation, Allianz Select International, Tax-Efficient
            Equity, Structured Emerging Markets, Tax-Efficient Structured
            Emerging Markets and International Funds may purchase and sell
            (write) call and put options on securities, securities indexes and
            foreign currencies. Each of these Funds may purchase and sell
            futures contracts and options thereon with respect to securities,
            securities indexes and foreign currencies. The Enhanced Equity
            Fund may purchase and write options on securities indexes and
            enter into securities index futures contracts and options on
            securities index futures contracts. The Global Innovation, Allianz
            Select International, Tax-Efficient Equity, Structured Emerging
            Markets and Tax-Efficient Structured Emerging Markets may enter
            into swap agreements with respect to securities indexes. A
            description of these and other derivative instruments that the
            Funds may use are described under "Investment Objectives and
            Policies" in the Statement of Additional Information.

             A Fund's use of derivative instruments involves risks different
            from, or greater than, the risks associated with investing
            directly in securities and other more traditional investments. A
            description of various risks associated with particular derivative
            instruments is included in "Investment Objectives and Policies" in
            the Statement of Additional Information. The following provides a
            more general discussion of important risk factors relating to all
            derivative instruments that may be used by the 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 instrument 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.

             Leveraging 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 a 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. To limit leverage risk, each Fund will segregate
            assets determined to be liquid by PIMCO Advisors or a Sub-Adviser
            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 derivative
            instruments.

             Lack of Availability Because the markets for certain derivative
            instruments (including markets located in foreign countries) are
            relatively new and still developing, suitable derivatives
            transactions may not be available in all circumstances for risk
            management or other purposes. There is no assurance that a Fund
            will engage in derivatives transactions at any time or from time
            to time. A Fund's ability to use derivatives may also be limited
            by certain regulatory and tax considerations.

73PIMCO Funds: Multi-Manager Series
<PAGE>

             Market and Other Risks Like most other investments, derivative
            instruments are subject to the risk that the market value of the
            instrument will change in a way detrimental to a Fund's interest.
            If a portfolio manager incorrectly forecasts the values of
            securities, currencies or interest rates or other economic factors
            in using derivatives for a Fund, the Fund might have been in a
            better position if it had not entered into the transaction at all.
            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
            other Fund investments. A Fund may also have to buy or sell a
            security at a disadvantageous time or price because the Fund is
            legally required to maintain offsetting positions or asset
            coverage in connection with certain derivatives transactions.

             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 a Fund. Also, the value of
            derivatives may not correlate perfectly, or at all, with the value
            of the assets, reference rates or indexes they are designed to
            closely track. In addition, a Fund's use of derivatives may cause
            the Fund to realize higher amounts of short-term capital gains
            (taxed at ordinary income tax rates when distributed to
            shareholders who are individuals) than if the Fund had not used
            such instruments.

Equity-     The Funds may invest in equity-linked securities. Each of the
Linked      Allianz Select International, Structured Emerging Markets and Tax-
Securities  Efficient Structured Emerging Markets Funds may invest up to 15%
            of its assets in equity-linked securities. The International Fund
            may invest up to 5% of its assets in equity-linked securities.
            Equity-linked securities are privately issued securities whose
            investment results are designed to correspond generally to the
            performance of a specified stock index or "basket" of stocks, or
            sometimes a single stock. To the extent that a Fund invests in
            equity-linked securities whose return corresponds to the
            performance of a foreign securities index or one or more of
            foreign stocks, investing in equity-linked securities will involve
            risks similar to the risks of investing in foreign equity
            securities. See "Foreign Securities" above. In addition, an
            investing Fund bears the risk that the issuer of an equity-linked
            security may default on its obligations under the security.
            Equity-linked securities may be considered illiquid and thus
            subject to the Funds' restrictions on investments in illiquid
            securities.

Credit      The Funds may invest in securities based on their credit ratings
Ratings     assigned by rating agencies such as Moody's Investors Service,
and         Inc. ("Moody's") and Standard & Poor's Ratings Services ("S&P").
Unrated     Moody's, S&P and other rating agencies are private services that
Securities  provide ratings of the credit quality of fixed income securities,
            including convertible securities. The Appendix to the Statement of
            Additional Information describes the various ratings assigned to
            fixed income securities by Moody's and S&P. Ratings assigned by a
            rating agency are not absolute standards of credit quality and do
            not evaluate market risk. Rating agencies may fail to make timely
            changes in credit ratings and an issuer's current financial
            condition may be better or worse than a rating indicates. A Fund
            will not necessarily sell a security when its rating is reduced
            below its rating at the time of purchase. PIMCO Advisors and the
            Sub-Advisers do not rely solely on credit ratings, and develop
            their own analysis of issuer credit quality.

             A Fund may purchase unrated securities (which are not rated by a
            rating agency) if its portfolio manager determines that the
            security is of comparable quality to a rated security that the
            Fund may purchase. Unrated securities may be less liquid than
            comparable rated securities and involve the risk that the
            portfolio manager may not accurately evaluate the security's
            comparative credit rating.

High        Securities rated lower than Baa by Moody's or lower than BBB by
Yield       S&P are sometimes referred to as "high yield securities" or "junk
Securities  bonds." The Funds, particularly the Growth & Income Fund, may
            invest in these securities. Investing in these securities involves
            special risks in addition to the risks associated with investments
            in higher-rated

                                                                   Prospectus 74
<PAGE>

            fixed income securities. While offering a greater potential
            opportunity for capital appreciation and higher yields, these
            securities typically may be subject to greater levels of interest
            rate, credit and liquidity risk, may entail greater potential
            price volatility and may be less liquid than higher-rated
            securities. These securities may be regarded as predominately
            speculative with respect to the issuer's continuing ability to
            meet principal and interest payments. They may also be more
            susceptible to real or perceived adverse economic and competitive
            industry conditions than higher-rated securities.

Loans of    For the purpose of achieving income, each Fund may lend its
Portfolio   portfolio securities to brokers, dealers, and other financial
Securities  institutions provided a number of conditions are satisfied,
            including that the loan is fully collateralized. Please see
            "Investment Objectives and Policies" in the Statement of
            Additional Information for details. When a Fund lends portfolio
            securities, its investment performance will continue to reflect
            changes in the value of the securities loaned, and the Fund will
            also receive a fee or interest on the collateral. Securities
            lending involves the risk of loss of rights in the collateral or
            delay in recovery of the collateral if the borrower fails to
            return the security loaned or becomes insolvent. A Fund may pay
            lending fees to the party arranging the loan.

Short       Each Fund may make short sales as part of its overall portfolio
Sales       management strategies or to offset a potential decline in the
            value of a security. A short sale involves the sale of a security
            that is borrowed from a broker or other institution to complete
            the sale. A Fund may only enter into short selling transactions if
            the security sold short is held in the Fund's portfolio or if the
            Fund has the right to acquire the security 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 a Fund to the
            risk that it will be required to acquire, convert or exchange
            securities to replace the borrowed securities (also known as
            "covering" the short position) at a time when the securities sold
            short have appreciated 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
Delivery    securities for a fixed price at a future date beyond normal
and         settlement time (forward commitments). When-issued transactions,
Forward     delayed delivery purchases and forward commitments involve a risk
Commitment  of loss if the value of the securities declines prior to the
Transactionssettlement date. This risk is in addition to the risk that the
            Fund's other assets will decline in value. Therefore, these
            transactions may result in a form of leverage and increase a
            Fund's overall investment exposure. 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 to cover these positions.

Repurchase  Each Fund may enter into repurchase agreements, in which the Fund
Agreements  purchases a security from a bank or broker-dealer that agrees to
            repurchase the security at the Fund's cost plus interest within a
            specified time. If the party agreeing to repurchase should
            default, the Fund will seek to sell the securities which it holds.
            This 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 its portfolio maintained in cash. Repurchase agreements
            maturing in more than seven days are considered illiquid
            securities.

Reverse
Repurchase
Agreements
and Other
Borrowings
            Each Fund may enter into reverse repurchase agreements, subject to
            the Fund's limitations on borrowings. A reverse repurchase
            agreement involves the sale of a security by a Fund and its
            agreement to repurchase the instrument at a specified time and
            price, and may be considered a form of borrowing for some
            purposes. A Fund will segregate assets determined to be liquid by
            PIMCO Advisors or a Sub-Adviser in accordance with procedures
            established by the Board of Trustees to cover its obligations
            under reverse repurchase agreements.

75PIMCO Funds: Multi-Manager Series
<PAGE>

            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. Reverse repurchase
            agreements and other forms of borrowings may create leveraging
            risk for a Fund.

Illiquid    Each Fund may invest in securities that are illiquid so long as
Securities  not more than 15% of the value of the Fund's net assets (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 held by the
            Fund, 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. Please see "Investment Objectives and Policies" in
            the Statement of Additional Information for a listing of various
            securities that are generally considered to be illiquid for these
            purposes. Restricted securities, i.e., securities subject to legal
            or contractual restrictions on resale, may be illiquid. However,
            some restricted securities (such as securities issued pursuant to
            Rule 144A under the Securities Act of 1933 and certain commercial
            paper) may be treated as liquid, although they may be less liquid
            than registered securities traded on established secondary
            markets.

Investment  The Allianz Select International and International Funds may
in Other    invest up to 10% of their assets in securities of other investment
Investment  companies, such as closed-end management investment companies, or
Companies   in pooled accounts or other investment vehicles which invest in
            foreign markets. Each of the other Funds may invest up to 5% of
            its assets in other investment companies. As a shareholder of an
            investment company, a Fund may indirectly bear service and other
            fees which are in addition to the fees the Fund pays its service
            providers.

Portfolio   With the exception of the Tax-Efficient Equity and Tax-Efficient
Turnover    Structured Emerging Markets Funds, the length of time a Fund has
            held a particular security is not generally a consideration in
            investment decisions. A change in the securities held by a Fund is
            known as "portfolio turnover." Each Fund may engage in active and
            frequent trading of portfolio securities to achieve its investment
            objective and principal investment strategies, particularly during
            periods of volatile market movements, although the Tax-Efficient
            Equity and Tax-Efficient Structured Emerging Markets Funds will
            generally attempt to limit portfolio turnover as part of their
            tax-efficient management strategies. 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 also result in realization of
            taxable capital gains, including short-term capital gains (which
            are taxed at ordinary income tax rates when distributed to
            shareholders who are individuals). The trading costs and tax
            effects associated with portfolio turnover may adversely affect a
            Fund's performance. Funds, such as the Growth & Income, Select
            Growth and Allianz Select International Funds, that have recently
            changed Sub-Advisers and/or investment objectives and policies may
            experience increased portfolio turnover due to the differences
            between the Funds' previous and current investment objectives and
            policies and portfolio management strategies.

Changes     The investment objective of each of the Renaissance, Growth &
in          Income, Growth, Select Growth, Target, Opportunity, Innovation,
Investment  Global Innovation, Allianz Select International, Mega-Cap, Tax-
Objectives  Efficient Equity, Tax-Efficient Structured Emerging Markets and
and         International Funds described in this Prospectus may be changed by
Policies    the Board of Trustees without shareholder approval. The investment
            objective of each other Fund is fundamental and may not be changed
            without shareholder approval. Unless otherwise stated in the
            Statement of Additional Information, all investment policies of
            the Funds may be changed by the Board of Trustees without
            shareholder approval. If there is a change in a Fund's investment
            objective or policies, 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.


                                                                   Prospectus 76
<PAGE>

New and     In addition to the risks described under "Summary of Principal
Smaller-    Risks" above and in this section, several of the Funds are newly
Sized       formed and therefore have limited or no performance history for
Funds       investors to evaluate. Also, it is possible that newer Funds and
            smaller-sized Funds may invest in securities offered in initial
            public offerings and other types of transactions (such as private
            placements) which, because of the Funds' size, may have a
            disproportionate impact on the Funds' performance results. The
            Funds would not necessarily have achieved the same performance
            results if their aggregate net assets had been greater.

Percentage  Unless otherwise stated, all percentage limitations on Fund
Investment  investments listed in this Prospectus will apply at the time of
Limitations investment. A Fund would not violate these limitations unless an
            excess or deficiency occurs or exists immediately after and as a
            result of an investment.

Other       The Funds may invest in other types of securities and use a
Investments variety of investment techniques and strategies which are not
and         described in this Prospectus. These securities and techniques may
Techniques  subject the Funds to additional risks. Please see the Statement of
            Additional Information for additional information about the
            securities and investment techniques described in this Prospectus
            and about additional securities and techniques that may be used by
            the Funds.

77PIMCO Funds: Multi-Manager Series
<PAGE>





                      (This page left blank intentionally)




                                                                   Prospectus
                                                                              78
<PAGE>

            Financial Highlights
            The financial highlights table is intended to help a shareholder
            understand the financial performance of Institutional and
            Administrative Class shares of each Fund for the past 5 years or,
            if the class is less than 5 years old, since the class of shares
            was first offered. Certain information reflects financial results
            for a single Fund share. The total returns in the table represent
            the rate that an investor would have earned or lost on an
            investment in a particular class of shares of a Fund, assuming
            reinvestment of all dividends and distributions. This information
            has been audited by PricewaterhouseCoopers LLP, whose report,
            along with each Fund's financial statements, are included in the
            Trust's annual report to shareholders. The annual report is
            incorporated by reference in the Statement of Additional
            Information and is available free of charge upon request from the
            Distributor.

<TABLE>
<CAPTION>
                        Net Asset                Net Realized/     Total    Dividends  Dividends in  Distributions
       Year or            Value        Net         Unrealized   Income from  from Net  Excess of Net   from Net
        Period          Beginning  Investment    Gain (Loss) on Investment  Investment  Investment     Realized
        Ended           of Period Income (Loss)   Investments   Operations    Income      Income     Capital Gains
------------------------------------------------------------------------------------------------------------------
<S>                     <C>       <C>            <C>            <C>         <C>        <C>           <C>
Equity Income Fund (i)
 Institutional Class
  06/30/00               $15.62      $ 0.39 (a)      $(2.44)(a)   $(2.05)     $(0.39)      $0.00        $(0.48)
  06/30/99                16.09        0.44 (a)        1.28 (a)     1.72       (0.43)       0.00         (1.76)
  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)
 Administrative Class
  06/30/00                15.61        0.37 (a)       (2.46)(a)    (2.09)      (0.33)       0.00         (0.48)
  06/30/99                16.08        0.41 (a)        1.28 (a)     1.69       (0.40)       0.00         (1.76)
  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)
Value Fund (i)
 Institutional Class
  06/30/00               $15.30      $ 0.28 (a)      $(1.33)(a)   $(1.05)     $(0.26)      $0.00        $(0.57)
  06/30/99                15.66        0.28 (a)        1.36 (a)     1.64       (0.28)       0.00         (1.72)
  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)
 Administrative Class
  06/30/00                15.26        0.24 (a)       (1.33)(a)    (1.09)      (0.25)       0.00         (0.57)
  06/30/99                15.65        0.26 (a)        1.32 (a)     1.58       (0.25)       0.00         (1.72)
  08/21/97-06/30/98       15.66        0.19 (a)        1.65 (a)     1.84       (0.22)       0.00         (1.63)
Renaissance Fund (ii)
 Institutional Class
  06/30/00               $18.23      $ 0.42 (a)      $(0.23)(a)   $ 0.19      $ 0.00       $0.00        $(2.59)
  06/30/99                19.07        0.06 (a)        1.43 (a)     1.49        0.00        0.00         (2.33)
  12/30/97-06/30/98       16.73        0.05            2.29         2.34        0.00        0.00          0.00
 Administrative Class
  06/30/00                18.18        0.11 (a)        0.09 (a)     0.20        0.00        0.00         (2.59)
  08/31/98-06/30/99       15.37        0.02 (a)        5.12 (a)     5.14        0.00        0.00         (2.33)
Growth & Income Fund
 (ii)
 Institutional Class
  06/30/00               $15.84      $(0.07)(a)      $ 5.81 (a)   $ 5.74      $ 0.00       $0.00        $(8.18)
  06/30/99                13.53       (0.03)(a)        2.99 (a)     2.96        0.00        0.00         (0.65)
  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)
 Administrative Class
  07/01/98-05/27/99(b)    13.50       (0.05)(a)        1.71 (a)     1.66        0.00        0.00         (0.65)
  08/21/97-06/30/98       15.27       (0.05)(a)        2.37 (a)     2.32        0.00        0.00         (4.09)
Growth Fund (ii)
 Institutional Class
  06/30/00               $31.24      $(0.14)(a)      $ 9.73 (a)   $ 9.59      $ 0.00       $0.00        $(5.66)
  03/31/99-06/30/99       31.27       (0.01)(a)       (0.02)(a)    (0.03)       0.00        0.00          0.00
 Administrative Class
  06/30/00                31.23       (0.21)(a)        9.59 (a)     9.38        0.00        0.00         (5.66)
  03/31/99-06/30/99       31.27       (0.04)(a)        0.00 (a)    (0.04)       0.00        0.00          0.00
</TABLE>
-------
 *    Annualized
(a)   Per share amounts based on average number of shares outstanding during
      the period.
(b)   All Administrative Class shares of the Growth & Income Fund were redeemed
      on May 27, 1999.
(i)   The information provided for the Equity Income and Value Funds reflects
      the results of operations under the Funds' former Sub-Adviser through
      May 8, 2000; the Funds would not necessarily have achieved the results
      shown above under their current investment management arrangements.
(ii)  The information provided for the Renaissance, Growth & Income and Growth
      Funds reflects results of operations under the Funds' former Sub-Adviser
      through May 7, June 30, and March 6, 1999, respectively; the Funds would
      not necessarily have achieved the performance results shown above under
      their current investment management arrangements. The Growth & Income
      Fund (formerly the Mid-Cap Equity Fund) changed its investment objective
      and policies on August 1, 2000; the performance results shown above
      would not necessarily have been achieved had the Fund's current
      objective and policies been in effect during the periods shown.

79  PIMCO Funds: Multi-Manager Series

<PAGE>








<TABLE>
<CAPTION>
                                           Fund                                                        Ratio of Net
Distributions                          Reimbursement                                       Ratio of     Investment
in Excess of   Tax Basis               Fee Added To  Net Asset               Net Assets   Expenses to  Income (Loss)
Net Realized   Return of     Total       Paid-In-    Value End                 End of     Average Net   to Average     Portfolio
Capital Gains   Capital  Distributions    Capital    of Period Total Return Period (000s)   Assets      Net Assets   Turnover Rate
----------------------------------------------------------------------------------------------------------------------------------
<S>            <C>       <C>           <C>           <C>       <C>          <C>           <C>          <C>           <C>
   $(2.16)       $0.00      $(3.03)       $ 0.00      $10.54      (12.83)%    $ 28,812       0.72%          3.21%         114%
     0.00         0.00       (2.19)         0.00       15.62       12.56       123,012       0.71           3.00           76
     0.00         0.00       (2.51)         0.00       16.09       21.84       138,650       0.71           2.71           45
     0.00         0.00       (2.52)         0.00       15.41       27.67       121,138       0.72           3.03           45
     0.00         0.00       (0.82)         0.00       14.36       16.35       116,714       0.70*          3.41*          52
    (2.16)        0.00       (2.97)         0.00       10.55      (13.17)        2,827       0.97           3.00          114%
     0.00         0.00       (2.16)         0.00       15.61       12.31        13,797       0.96           2.80           76
     0.00         0.00       (2.47)         0.00       16.08       21.58        11,699       0.96           2.45           45
     0.00         0.00       (2.48)         0.00       15.40       27.40         8,145       0.97           2.79           45
     0.00         0.00       (0.84)         0.00       14.35       16.08         6,097       0.95*          3.19*          52
   $(2.00)       $0.00      $(2.83)       $ 0.00      $11.42       (6.65)%    $ 41,996       0.70%          2.18%         196%
     0.00         0.00       (2.00)         0.00       15.30       12.30        69,181       0.71           1.99          101
     0.00         0.00       (1.87)         0.00       15.66       19.35        83,219       0.71           1.59           77
     0.00         0.00       (0.81)         0.00       14.81       26.38        74,613       0.73           2.02           71
     0.00         0.00       (1.94)         0.00       12.46       16.24        52,727       0.70*          2.40*          29
    (2.00)        0.00       (2.82)         0.00       11.35       (7.00)       24,380       0.96           1.97          196%
     0.00         0.00       (1.97)         0.00       15.26       11.91        23,164       0.95           1.81          101
     0.00         0.00       (1.85)         0.00       15.65       12.71        10,349       0.96*          1.40*          77
   $(0.86)       $0.00      $(3.45)       $ 0.00      $14.97        3.30 %    $  6,394       0.85%          2.73%         133%
     0.00         0.00       (2.33)         0.00       18.23       10.24           136       0.86           0.38          221
     0.00         0.00        0.00          0.00       19.07       13.99           851       0.86*          0.55*         192
    (0.86)        0.00       (3.45)         0.00       14.93        3.36           953       1.10           0.71          133
     0.00         0.00       (2.33)         0.00       18.18       36.41           427       1.09*          0.13*         221
   $(0.42)       $0.00      $(8.60)       $ 0.00      $12.98       49.32%     $  4,914       1.03%(c)      (0.46)%        195%
     0.00         0.00       (0.65)         0.00       15.84       23.18         7,399       0.89          (0.22)         273
     0.00         0.00       (4.09)         0.00       13.53       30.40         8,488       0.89          (0.25)         268
     0.00         0.00       (1.87)         0.00       14.04        9.61         7,591       1.15          (0.43)         202
     0.00         0.00       (0.37)         0.00       14.66       16.72         8,378       0.88*         (0.32)*         97
     0.00         0.00       (0.65)         0.00       14.51       13.12             0       1.14*         (0.45)*        273
     0.00         0.00       (4.09)         0.00       13.50       19.65         2,371       1.13*         (0.49)*        268
   $ 0.00        $0.00      $(5.66)       $ 0.00      $35.17       32.66 %    $ 17,533       0.77%         (0.39)%         72%
     0.00         0.00        0.00          0.00       31.24       (0.10)          948       0.74*         (0.19)*        131
     0.00         0.00       (5.66)         0.00       34.95       31.92        15,116       1.02          (0.63)          72
     0.00         0.00        0.00          0.00       31.23       (0.13)        6,164       0.97*         (0.53)*        131
</TABLE>

-------
(c)   Ratio of expenses to average net assets excluding interest expense is
      0.88%.
                                                                   Prospectus
                                                                              80
<PAGE>

           Financial Highlights (continued)

<TABLE>
<CAPTION>

                          Net Asset                Net Realized/      Total    Dividends  Dividends in  Distributions
        Year or             Value        Net         Unrealized    Income from  from Net  Excess of Net   from Net
         Period           Beginning  Investment    Gain (Loss) on  Investment  Investment  Investment     Realized
         Ended            of Period Income (Loss)   Investments    Operations    Income      Income     Capital Gains
---------------------------------------------------------------------------------------------------------------------
<S>                       <C>       <C>            <C>             <C>         <C>        <C>           <C>
Select Growth Fund (iii)
 Institutional Class
  06/30/00                 $24.86      $  0.05 (a)    $   2.86 (a)   $ 2.91      $(0.02)     $ 0.00        $(3.72)
  06/30/99                  20.39        (0.04)(a)        5.24 (a)     5.20        0.00        0.00         (0.73)
  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)
 Administrative Class
  06/30/00                 $24.67      $  0.01 (a)    $   2.76 (a)   $ 2.75      $(0.03)     $ 0.00        $(3.72)
  06/30/99                  20.32        (0.03)(a)        5.11 (a)     5.08        0.00        0.00         (0.73)
  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)
Target Fund (iv)
 Institutional Class
  06/30/00                 $17.74      $ (0.14)(a)    $  15.30 (a)   $15.16      $ 0.00      $ 0.00        $(1.80)
  03/31/99-06/30/99         16.34        (0.02)(a)        1.42 (a)     1.40        0.00        0.00          0.00
 Administrative Class
  06/30/00                  17.73        (0.19)(a)       15.55 (a)    15.36        0.00        0.00         (1.80)
  03/31/99-06/30/99         16.34        (0.03)(a)        1.42 (a)     1.39        0.00        0.00          0.00
Opportunity Fund (iv)
 Institutional Class
  06/30/00                 $24.26      $(0.12)(a)     $  11.17 (a)   $11.05      $ 0.00      $ 0.00        $(7.88)
  03/31/99-06/30/99         21.40       (0.03)(a)         2.89 (a)     2.86        0.00        0.00          0.00
 Administrative Class
  06/30/00                  24.26       (0.18)(a)        11.24 (a)    11.06        0.00        0.00         (7.88)
  03/31/99-06/30/99         21.40       (0.05)(a)         2.91 (a)     2.86        0.00        0.00          0.00
Innovation Fund (iv)
 Institutional Class
  06/30/00                 $37.50      $(0.37)(a)     $  41.80 (a)   $41.43      $ 0.00      $ 0.00        $(6.39)
  03/05/99-06/30/99         32.73       (0.05)(a)         4.82 (a)     4.77        0.00        0.00          0.00
 Administrative Class
  03/31/00-06/30/00         99.70       (0.20)(a)      (27.17)(a)    (27.37)       0.00        0.00          0.00
Global Innovation Fund
 Institutional Class
  03/31/00-06/30/00        $20.17      $(0.01)(a)     $ (1.20)(a)    $(1.21)     $ 0.00      $ 0.00        $ 0.00
</TABLE>
-------
*     Annualized
(a)   Per share amounts based on average number of shares outstanding during
      the period.
(iii) Formerly the PIMCO Core Equity Fund. The Fund changed its investment
      objective and policies on April 1, 2000; the performance results shown
      above would not necessarily have been achieved had the Fund's current
      objective and policies been in effect during the periods shown. In
      addition, the performance results shown above reflect the Fund's
      advisory fee level in effect prior to April 1, 2000; these results would
      have been lower had the Fund's current advisory fee level then been in
      effect. This information also reflects the results of operations under
      the Fund's former Sub-Adviser through June 30, 1999; the Fund would not
      necessarily have achieved the performance results shown above under its
      current investment management arrangements.
(iv)  The information provided for the Target, Opportunity and Innovation Funds
      reflects results of operations under the Funds' former Sub-Adviser
      through March 6, 1999; the Funds would not necessarily have achieved the
      performance results shown above under their current investment management
      arrangements.

81  PIMCO Funds: Multi-Manager Series
<PAGE>



<TABLE>
<CAPTION>
                                           Fund                                                         Ratio of Net
Distributions                          Reimbursement                                       Ratio of      Investment
in Excess of   Tax Basis               Fee Added to  Net Asset               Net Assets   Expenses to   Income (Loss)
Net Realized   Return of     Total       Paid-In-    Value End                 End of     Average Net    to Average
Capital Gains   Capital  Distributions    Capital    of Period Total Return Period (000s)   Assets       Net Assets
---------------------------------------------------------------------------------------------------------------------
<S>            <C>       <C>           <C>           <C>       <C>          <C>           <C>           <C>
   $ 0.00       $(0.01)     $ (3.75)      $ 0.00      $ 24.02      13.11%     $  2,613       0.94%(b)        0.20%
     0.00         0.00        (0.73)        0.00        24.86      26.34         1,184       1.01           (0.20)
     0.00         0.00        (1.30)        0.00        20.39      41.83         1,915       0.83            0.20
     0.00         0.00        (0.81)        0.00        15.55      21.59         6,444       0.87            0.23
     0.00         0.00        (0.33)        0.00        13.55       9.41        10,452       0.82*           0.53*
   $ 0.00       $(0.01)     $ (3.76)      $ 0.00      $ 23.66      12.54%     $     49       1.18%(c)       (0.05)%
     0.00         0.00        (0.73)        0.00        24.67      25.84            15       1.08           (0.17)
     0.00         0.00        (1.30)        0.00        20.32      41.54       128,666       1.08           (0.07)
     0.00         0.00        (0.80)        0.00        15.53      21.20        29,332       1.13           (0.03)
     0.00         0.00        (0.31)        0.00        13.56       9.23        33,575       1.07*           0.28 *
   $ 0.00       $ 0.00      $ (1.80)      $ 0.00      $ 31.10      89.85%     $ 18,436       0.81%          (0.50)%
     0.00         0.00         0.00         0.00        17.74       8.57         1,298       0.79*          (0.39)*
     0.00         0.00        (1.80)        0.00        31.29      91.13         6,699       1.06           (0.78)
     0.00         0.00         0.00         0.00        17.73       8.51         5,513       1.02*          (0.61)*
   $ 0.00       $ 0.00      $ (7.88)      $ 0.00      $ 27.43      50.24%     $ 39,205       0.91%          (0.42)%
     0.00         0.00         0.00         0.00        24.26      13.36           417       0.88*          (0.54)*
     0.00         0.00        (7.88)        0.00        27.44      50.36         8,486       1.16           (0.67)
     0.00         0.00         0.00         0.00        24.26      13.36         2,010       1.12*          (0.82)*
   $ 0.00       $ 0.00      $ (6.39)      $ 0.00      $ 72.54     115.34%     $ 28,334       0.90%          (0.52)%
     0.00         0.00         0.00         0.00        37.50      14.57           444       0.88*          (0.15)
     0.00         0.00         0.00         0.00        72.33     (27.45)          668       1.15*          (0.92)*
   $ 0.00       $ 0.00      $  0.00       $ 0.00      $ 18.96      (6.00)%    $    403       1.40%(d)*      (0.25)%*
<CAPTION>
   Portfolio
 Turnover Rate
-------------------------------------------------------------------------------------------------------
 <C>
      170%
       95
      120
      139
       73
      170%
       95
      120
      139
       73
       99%
      229
       99
      229
      254%
      175
      254
      175
      186%
      119
      186
      131%
</TABLE>
-------
(b)   Ratio of expenses to average net assets excluding interest expense is
      0.83%.
(c)   Ratio of expenses to average net assets excluding interest expense is
      1.08%.
(d)   If the investment manager had not reimbursed expenses, the ratio of
      operating expenses to average net assets would have been 1.47% for the
      period ended June 30, 2000.

                                                                   Prospectus 82
<PAGE>

           Financial Highlights (continued)

<TABLE>
<CAPTION>

                         Net Asset                Net Realized/     Total    Dividends  Dividends in  Distributions
        Year or            Value        Net         Unrealized   Income from  from Net  Excess of Net   from Net
        Period           Beginning  Investment    Gain (Loss) on Investment  Investment  Investment     Realized
         Ended           of Period Income (Loss)   Investments   Operations    Income      Income     Capital Gains
-------------------------------------------------------------------------------------------------------------------
<S>                      <C>       <C>            <C>            <C>         <C>        <C>           <C>
Allianz Select
 International Fund (v)
 Institutional Class
  06/30/00                $16.04      $(0.05)(a)      $8.90 (a)     $8.85      $ 0.00      $ 0.00        $(4.43)
  06/30/99                 13.55       (0.02)(a)       3.56 (a)      3.54       (0.02)       0.00         (1.03)
  12/31/97-06/30/98        10.00        0.00 (a)       3.55 (a)      3.55        0.00        0.00          0.00
Mega-Cap Fund
 Institutional Class
  08/31/99-06/30/00       $10.00      $ 0.00 (a)      $3.35 (a)     $3.35      $ 0.00      $ 0.00        $ 0.00
Capital Appreciation
 Fund
 Institutional Class
  06/30/00                $26.84      $  0.08 (a)     $5.29 (a)     $5.37      $(0.07)     $(0.04)       $(5.00)
  06/30/99                 26.13         0.16 (a)      2.35 (a)      2.51       (0.15)       0.00         (1.65)
  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)
 Administrative Class
  06/30/00                 26.64         0.01 (a)      5.25 (a)      5.26       (0.03)      (0.02)        (5.00)
  06/30/99                 25.99         0.09 (a)      2.34 (a)      2.43       (0.13)       0.00         (1.65)
  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 Fund (vi)
 Institutional Class
  06/30/00                $23.01      $  0.09 (a)     $7.91 (a)     $8.00      $(0.07)     $(0.04)       $(0.02)
  06/30/99                 24.09         0.12 (a)     (0.11)(a)      0.01       (0.02)       0.00         (1.07)
  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)
 Administrative Class
  06/30/00                 22.88         0.03 (a)      7.86 (a)      7.89       (0.03)      (0.02)        (0.02)
  06/30/99                 23.96         0.06 (a)     (0.06)(a)      0.00       (0.01)       0.00         (1.07)
  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)
Micro-Cap Fund (vii)
 Institutional Class
  06/30/00                $20.00      $ (0.19)(a)     $5.31 (a)     $5.12      $ 0.00      $ 0.00        $ 0.00
  06/30/99                 23.66        (0.14)(a)     (2.89)(a)     (3.03)       0.00        0.00          0.00
  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)
 Administrative Class
  06/30/00                 19.82        (0.26)(a)      5.27 (a)      5.01        0.00        0.00          0.00
  06/30/99                 23.52        (0.19)(a)     (2.88)(a)     (3.07)       0.00        0.00          0.00
  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
</TABLE>
-------
*   Annualized
(a) Per share amounts based on average number of shares outstanding during
    the period.
(v) Formerly the International Growth Fund. The information provided for the
    Allianz Select International Fund reflects results of operations under the
    Fund's former Sub-Advisers through June 30, 2000; the Fund would not
    necessarily have achieved the performance results shown above under its
    current investment management arrangements. The Fund changed its
    investment objective and policies on November 1, 2000; the performance
    results shown above would not necessarily have been achieved had the
    Fund's current objective and policies been in effect during the periods
    shown.
(vi)  Formerly the Mid-Cap Growth Fund.
(vii) Formerly the Micro-Cap Growth Fund.

83 PIMCO Funds: Multi-Manager Series
<PAGE>



<TABLE>
<CAPTION>
                                           Fund                                                         Ratio of Net
Distributions                          Reimbursement                                       Ratio of      Investment
in Excess of   Tax Basis               Fee Added to  Net Asset               Net Assets   Expenses to   Income (Loss)
Net Realized   Return of     Total       Paid-In-    Value End                 End of     Average Net    to Average
Capital Gains   Capital  Distributions    Capital    of Period Total Return Period (000s)   Assets       Net Assets
---------------------------------------------------------------------------------------------------------------------
<S>            <C>       <C>           <C>           <C>       <C>          <C>           <C>           <C>
   $ 0.00        $0.00      $(4.43)        $0.00      $20.46       56.28%     $ 10,541       1.35%          (0.22)%
     0.00         0.00       (1.05)         0.00       16.04       28.62         8,408       1.39           (0.15)
     0.00         0.00        0.00          0.00       13.55       35.50         6,822       1.36*           0.08*
   $ 0.00        $0.00      $ 0.00         $0.00      $13.35       33.54%     $  4,009       0.71%*(b)       0.04%*
   $ 0.00        $0.00      $(5.11)        $0.00      $27.10       22.79%     $372,028       0.71%           0.29%
     0.00         0.00       (1.80)         0.00       26.84       10.57       645,967       0.71            0.64
     0.00         0.00       (1.80)         0.00       26.13       32.97       805,856       0.71            0.64
     0.00         0.00       (2.23)         0.00       21.19       31.52       536,187       0.71            1.02
     0.00         0.00       (1.18)         0.00       18.10       14.65       348,728       0.70*           1.33*
     0.00         0.00       (5.05)         0.00       26.85       22.49       180,423       0.96            0.04
     0.00         0.00       (1.78)         0.00       26.64       10.30       229,831       0.95            0.38
     0.00         0.00       (1.82)         0.00       25.99       32.55       132,384       0.96            0.39
     0.00         0.00       (2.22)         0.00       21.16       38.26         3,115       0.96*           0.66*
   $ 0.00        $0.00      $(0.13)        $0.00      $30.88       34.88%     $582,715       0.71%           0.35%
     0.00         0.00       (1.09)         0.00       23.01        0.33       581,544       0.70            0.54
     0.00         0.00       (1.41)         0.00       24.09       26.16       437,985       0.71            0.46
     0.00         0.00       (4.34)         0.00       20.28       30.58       291,374       0.71            0.53
     0.00         0.00       (0.57)         0.00       19.44       10.37       231,011       0.70*           1.11*
     0.00         0.00       (0.07)         0.00       30.70       34.53       142,986       0.96            0.10
     0.00         0.00       (1.08)         0.00       22.88        0.31       104,337       0.95            0.30
     0.00         0.00       (1.41)         0.00       23.96       25.75        73,614       0.95            0.22
     0.00         0.00       (4.32)         0.00       20.24       30.23         2,066       0.96            0.28
     0.00         0.00       (0.54)         0.00       19.44       10.17         1,071       0.95*           0.89*
   $ 0.00        $0.00      $ 0.00         $0.00      $25.12       25.60 %    $231,579       1.51%          (0.90)%
    (0.63)        0.00       (0.63)         0.00       20.00      (12.66)      234,439       1.50           (0.71)
     0.00         0.00       (2.62)         0.00       23.66       33.95       257,842       1.51           (0.50)
     0.00         0.00       (2.03)         0.00       19.85       20.05       164,139       1.52           (0.49)
     0.00         0.00       (0.34)         0.00       18.47       22.64        83,973       1.50*          (0.45)*
     0.00         0.00        0.00          0.00       24.83       25.28         7,208       1.76           (1.19)
    (0.63)        0.00       (0.63)         0.00       19.82      (12.91)        3,000       1.75           (0.97)
     0.00         0.00       (2.62)         0.00       23.52       33.70         4,779       1.76           (0.74)
     0.00         0.00       (2.03)         0.00       19.78       19.72         2,116       1.77           (0.74)
     0.00         0.00        0.00          0.00       18.46       10.34           566       1.73*          (0.74)*
<CAPTION>


    Portfolio
  Turnover Rate
--------------------------------------------------------------------------------------------------------
<C>
       62%
      269
       60
      151%
      119%
      120
       75
       87
       73
      119
      120
       75
       87
      164%
       85
       66
       82
       79
      164
       85
       66
       82
       79
       85%
       73
       72
       84
       54
       85
       73
       72
       84
       54
</TABLE>
-------
(b) If the investment manager had not reimbursed expenses, the ratio of
    operating expenses to average net assets would have been 1.26% for the
    period ended June 30, 2000.

                                                                  Prospectus 84
<PAGE>

           Financial Highlights (continued)


<TABLE>
<CAPTION>
                          Net Asset               Net Realized/     Total    Dividends  Dividends in  Distributions
   Year or                  Value        Net        Unrealized   Income from  from Net  Excess of Net   from Net
   Period                 Beginning  Investment   Gain (Loss) on Investment  Investment  Investment     Realized
    Ended                 of Period Income (Loss)  Investments   Operations    Income      Income     Capital Gains
-------------------------------------------------------------------------------------------------------------------
<S>                       <C>       <C>           <C>            <C>         <C>        <C>           <C>
Small-Cap Value Fund
 Institutional Class
  06/30/00                 $16.05       $0.37 (a)     $(1.82)(a)   $(1.45)     $(0.34)      $0.00        $ 0.00
  06/30/99                  17.68        0.32 (a)      (1.29)(a)    (0.97)      (0.21)       0.00          0.00
  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)
 Administrative Class
  06/30/00                  15.97        0.34 (a)      (1.81)(a)    (1.47)      (0.31)       0.00          0.00
  06/30/99                  17.63        0.29 (a)      (1.30)(a)    (1.01)      (0.20)       0.00          0.00
  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
  06/30/00                 $12.96       $0.07 (a)     $ 0.49 (a)   $ 0.56      $(0.07)      $0.00        $(0.47)
  06/30/99                  12.64        0.08 (a)       1.91 (a)     1.99       (0.06)       0.00         (1.61)
  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)
 Administrative Class
  06/30/00                  12.87        0.03 (a)       0.53 (a)     0.56       (0.05)       0.00         (0.47)
  06/30/99                  12.59        0.05 (a)       1.90 (a)     1.95       (0.06)       0.00         (1.61)
  08/21/97-06/30/98         17.53        0.05 (a)       2.85 (a)     2.90       (0.11)       0.00         (7.73)
Tax-Efficient Equity
 Fund
 Institutional Class
  07/02/99-06/30/00        $11.79       $0.05 (a)     $ 0.47 (a)   $(0.52)     $ 0.00       $0.00        $ 0.00
 Administrative Class
  06/30/00                  11.61        0.02 (a)       0.65 (a)     0.67        0.00        0.00          0.00
  09/30/98-06/30/99          8.65        0.03 (a)       2.93 (a)     2.96        0.00        0.00          0.00
Structured Emerging
 Markets Fund
 Institutional Class
  06/30/00                 $12.42       $0.05 (a)     $ 0.81 (a)   $ 0.86      $(0.07)      $0.00        $(0.79)
  09/30/98-06/30/99         10.00        0.15 (a)       2.57 (a)     2.72       (0.07)       0.00         (0.28)
Tax-Efficient Structured
 Emerging Markets Fund
 Institutional Class
  06/30/00                 $13.25       $0.09 (a)     $ 0.89 (a)   $ 0.98      $(0.12)      $0.00        $ 0.00
  09/30/98-06/30/99         10.00        0.16 (a)       3.10 (a)     3.26       (0.06)       0.00          0.00
International Fund
 Institutional Class
  06/30/00                 $11.62       $0.08 (a)     $ 1.24 (a)   $ 1.32      $ 0.00       $0.00        $(1.74)
  09/30/98-06/30/99         10.47        0.14 (a)       2.16 (a)     2.30        0.00        0.00         (1.15)
 Administrative Class
  06/30/00                  11.56        0.04 (a)       1.24 (a)     1.28        0.00        0.00         (1.74)
  09/30/98-06/30/99         10.47        0.09 (a)       2.15 (a)     2.24        0.00        0.00         (1.15)
</TABLE>
-------
 *   Annualized
(a)  Per share amounts based on average number of shares outstanding during the
     period.

85 PIMCO Funds: Multi-Manager Series
<PAGE>


<TABLE>
<CAPTION>
                                           Fund                                                        Ratio of Net
Distributions                          Reimbursement                                       Ratio of     Investment
in Excess of   Tax Basis               Fee Added to  Net Asset               Net Assets   Expenses to  Income (Loss)
Net Realized   Return of     Total       Paid-In-    Value End                 End of     Average Net   to Average     Portfolio
Capital Gains   Capital  Distributions    Capital    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      $(0.34)        $0.00      $14.26      (8.88)%      $30,059       0.86%         2.57%           55%
    (0.45)        0.00       (0.66)         0.00       16.05      (5.11)        59,132       0.85          2.12            60
     0.00         0.00       (0.89)         0.00       17.68      17.77         47,432       0.85          1.65            41
     0.00         0.00       (2.51)         0.00       15.78      31.99         34,639       0.90          1.92            48
     0.00         0.00       (0.95)         0.00       14.20      16.35         29,017       0.85*         2.12*           35
     0.00         0.00       (0.31)         0.00       14.19      (9.12)        15,313       1.11          2.38            55
    (0.45)        0.00       (0.65)         0.00       15.97      (5.40)        21,002       1.10          1.92            60
     0.00         0.00       (0.87)         0.00       17.63      17.41         10,751       1.10          1.39            41
     0.00         0.00       (2.50)         0.00       15.76      31.70          5,916       1.16          1.68            48
     0.00         0.00       (0.93)         0.00       14.20      15.64          4,433       1.10*         1.86*           35
    $0.00        $0.00      $(0.54)        $0.00      $12.98       4.45 %      $20,338       0.71%         0.54%           20%
     0.00         0.00       (1.67)         0.00       12.96      17.95         42,619       0.71          0.66            34
     0.00         0.00       (7.84)         0.00       12.64      32.33         36,584       0.71          0.63            65
     0.00         0.00       (3.73)         0.00       16.46      31.45         44,838       0.74          1.31            91
     0.00         0.00       (0.54)         0.00       15.91      14.21         83,425       0.70*         1.58*           53
     0.00         0.00       (0.52)         0.00       12.91       4.47         27,954       0.96          0.27            20
     0.00         0.00       (1.67)         0.00       12.87      17.63         24,015       0.96          0.41            34
     0.00         0.00       (7.84)         0.00       12.59      23.85         10,409       0.95*         0.47*           65
    $0.00        $0.00      $ 0.00         $0.00      $12.31       4.41 %      $ 1,172       0.71%*        0.42%*          32%
     0.00         0.00        0.00          0.00       12.28       5.77         19,953       0.96          0.19            32
     0.00         0.00        0.00          0.00       11.61      34.28          3,391       0.92*         0.31*           13
    $0.00        $0.00      $(0.86)        $0.01(a)   $12.43       6.64 %      $35,376       1.25%(b)      0.36%           24%
     0.00         0.00       (0.35)         0.05(a)    12.42      29.21         46,577       0.95          1.56            30
    $0.00        $0.00      $(0.12)        $0.03(a)   $14.14       7.55 %      $86,973       1.00%(b)      0.64%           24%
     0.00         0.00       (0.06)         0.05(a)    13.25      33.39         72,509       0.95          1.57            28
    $0.00        $0.00      $(1.74)        $0.00      $11.20      11.10 %      $ 6,463       1.13%(c)      0.66%           58%
     0.00         0.00       (1.15)         0.00       11.62      23.07          3,627       1.09*         1.70*           55
     0.00         0.00       (1.74)         0.00       11.10      10.78         18,059       1.38(d)       0.34            58
     0.00         0.00       (1.15)         0.00       11.56      22.47         15,797       1.34*         1.06*           55
</TABLE>
-------
(b)  Ratio of expenses to average net assets excluding tax and interest expense
     is 0.95%.
(c)  Ratio of expenses to average net assets excluding interest expense is
     1.05%.
(d)  Ratio of expenses to average net assets excluding interest expense is
     1.30%.

                                                                  Prospectus 86
<PAGE>




                      (This page left blank intentionally)



<PAGE>




                      (This page left blank intentionally)



<PAGE>




                      (This page left blank intentionally)



<PAGE>

            -------------------------------------------------------------------
PIMCO       INVESTMENT ADVISER AND ADMINISTRATOR
Funds:      PIMCO Advisors L.P., 800 Newport Center Drive, Newport Beach, CA
Multi-      92660
Manager
Series

            -------------------------------------------------------------------
            CUSTODIAN
            State Street Bank & Trust Co., 801 Pennsylvania, Kansas City, MO
            64105

            -------------------------------------------------------------------
            TRANSFER AGENT
            National Financial Data Services, 330 W. 9th Street, 4th Floor,
            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>

The Trust's Statement of Additional Information ("SAI") and annual and
semi-annual reports to shareholders include additional information about the
Funds. The SAI and the financial statements included in the Funds' most recent
annual report to shareholders are incorporated by reference into this
Prospectus, which means they are part of this Prospectus for legal purposes. The
Funds' annual report discusses the market conditions and investment strategies
that significantly affected each Fund's performance during its last fiscal year.

You may get free copies of any of these materials, request other information
about a Fund, or make shareholder inquiries by calling the Trust at
1-800-927-4648 or PIMCO Infolink Audio Response Network at 1-800-987-4626, or by
writing to:

PIMCO Funds:
Multi-Manager Series
840 Newport Center Drive
Suite 300
Newport Beach, CA 92660

You may review and copy information about the Trust, including its SAI, at the
Securities and Exchange Commission's public reference room in Washington, D.C.
You may call the Commission at 1-202-942-8090 for information about the
operation of the public reference room. You may also access reports and other
information about the Trust on the Commission's Web site at www.sec.gov. You may
get copies of this information, with payment of a duplication fee, by writing
the Public Reference Section of the Commission, Washington, D.C. 20549-6009, or
by e-mailing your request to [email protected]. Reference the Trust's
Investment Company Act file number in your correspondence.

Investment Company Act File No. 811-6161


[LOGO OF PIMCO FUNDS]

PIMCO Funds

840 Newport Center Drive
Suite 300
Newport Beach, CA 92660



PY000.11/00
<PAGE>

NOVEMBER 1, 2000

PIMCO Funds Prospectus

stock

Share Classes          GROWTH STOCK FUNDS            ENHANCED INDEX STOCK FUNDS
                       Growth Fund                   Tax-Efficient Equity Fund
  A B C                Select Growth Fund
                       Target Fund                   INTERNATIONAL STOCK FUNDS
                       Opportunity Fund              Allianz Select
                                                     International Fund
                                                     International Fund
                       BLEND STOCK FUNDS
                       Growth & Income Fund
                       Capital Appreciation Fund     SECTOR-RELATED STOCK FUNDS
                       Mid-Cap Fund                  Innovation Fund
                                                     Global Innovation Fund



                       VALUE STOCK FUNDS
                       Equity Income Fund
                       Renaissance Fund
                       Value Fund
                       Small-Cap Value Fund





This cover is not part of the Prospectus.

                                                           [LOGO OF PIMCO FUNDS]
<PAGE>

            PIMCO Funds Prospectus

PIMCO       This Prospectus describes 16 mutual funds offered by PIMCO Funds:
Funds:      Multi-Manager Series. The Funds provide access to the professional
Multi-      investment advisory services offered by PIMCO Advisors L.P. and
Manager     its investment management affiliates. As of September 30, 2000,
Series      PIMCO Advisors and its affiliates managed approximately
            $272 billion.


November 1,
2000        The Prospectus explains what you should know about the Funds
            before you invest. Please read it carefully.


            The Securities and Exchange Commission has not approved or
Share       disapproved these securities or determined if this Prospectus is
Classes     truthful or complete. Any representation to the contrary is a
A, B        criminal offense.
and C

1  PIMCO Funds: Multi-Manager Series
<PAGE>



            Table of Contents

<TABLE>
         <S>                                                               <C>
         Summary Information..............................................   3
         Fund Summaries
           Capital Appreciation Fund......................................   5
           Equity Income Fund.............................................   7
           Global Innovation Fund.........................................   9
           Growth Fund....................................................  11
           Growth & Income Fund...........................................  13
           Innovation Fund................................................  15
           International Fund.............................................  17
           Mid-Cap Fund...................................................  19
           Opportunity Fund...............................................  21
           Renaissance Fund...............................................  23
           Select Growth Fund.............................................  25
           Allianz Select International Fund..............................  27
           Small-Cap Value Fund...........................................  29
           Target Fund....................................................  31
           Tax-Efficient Equity Fund......................................  33
           Value Fund.....................................................  35
         Summary of Principal Risks.......................................  37
         Management of the Funds..........................................  41
         Investment Options - Class A, B and C Shares ....................  46
         How Fund Shares Are Priced.......................................  48
         How to Buy and Sell Shares.......................................  49
         Fund Distributions...............................................  53
         Tax Consequences.................................................  54
         Characteristics and Risks of Securities and Investment
          Techniques......................................................  54
         Financial Highlights.............................................  63
</TABLE>

                                                                   Prospectus  2
<PAGE>

           Summary Information

 The table below lists the investment objectives and compares certain
 investment characteristics of the Funds. Other important characteristics are
 described in the individual Fund Summaries beginning on page 5.

<TABLE>
<CAPTION>
                                                                                             Approximate   Approximate
                  PIMCO                Investment                         Main               Number of     Capitalization
                  Fund                 Objective                          Investments        Holdings      Range
 --------------------------------------------------------------------------------------------------------------------------------
  <C>             <C>                  <C>                                <S>                <C>           <C>
  Growth Stock    Growth               Long-term growth of capital;       Common stocks of   35-40         At least $5 billion
  Funds                                income is an incidental            companies with
                                       consideration                      market
                                                                          capitalizations
                                                                          of at least $5
                                                                          billion
           -----------------------------------------------------------------------------------------------------------------
                  Select Growth        Long-term growth of capital;       Common stocks of   15-25         At least $10 billion
                                       income is an incidental            companies with
                                       consideration                      market
                                                                          capitalizations
                                                                          of at least $10
                                                                          billion
           -----------------------------------------------------------------------------------------------------------------
                  Target               Capital appreciation; no           Common stocks of   40-60         Between $1 billion
                                       consideration is given to income   companies with                   and $10 billion
                                                                          market
                                                                          capitalizations
                                                                          of between $1
                                                                          billion and
                                                                          $10 billion
           -----------------------------------------------------------------------------------------------------------------
                  Opportunity          Capital appreciation; no           Common stocks of   60-100        Between $100 million
                                       consideration is given to income   companies with                   and $2 billion
                                                                          market
                                                                          capitalizations
                                                                          of between $100
                                                                          million and $2
                                                                          billion
 --------------------------------------------------------------------------------------------------------------------------------
  Blend Stock     Growth & Income      Long-term growth                   Securities of      40-60         At least $1 billion
  Funds                                of capital; current income         companies with
                                       is a secondary objective           market
                                                                          capitalizations
                                                                          of at least $1
                                                                          billion
           -----------------------------------------------------------------------------------------------------------------
                  Capital Appreciation Growth of capital                  Common stocks of   60-100        At least $1 billion
                                                                          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 of capital                  Common stocks of   60-100        More than $500 million
                                                                          companies with                   (excluding the largest
                                                                          market                           200 companies)
                                                                          capitalizations
                                                                          of more than
                                                                          $500 million
                                                                          (excluding the
                                                                          largest 200
                                                                          companies) that
                                                                          have improving
                                                                          fundamentals and
                                                                          whose stock is
                                                                          reasonably
                                                                          valued by the
                                                                          market
 --------------------------------------------------------------------------------------------------------------------------------
  Value Stock     Equity Income        Current income as a primary        Income-producing   40-50         More than $2 billion
  Funds                                objective; long-term growth of     common stocks of
                                       capital is a secondary objective   companies with
                                                                          market
                                                                          capitalizations
                                                                          of more than $2
                                                                          billion
           -----------------------------------------------------------------------------------------------------------------
                  Renaissance          Long-term growth of capital        Common stocks of   50-80         All capitalizations
                                       and income                         companies with
                                                                          below-average
                                                                          valuations whose
                                                                          business
                                                                          fundamentals are
                                                                          expected to
                                                                          improve
           -----------------------------------------------------------------------------------------------------------------
                  Value                Long-term growth of capital        Common stocks of   40            More than $5 billion
                                       and income                         companies with
                                                                          market
                                                                          capitalizations
                                                                          of more than $5
                                                                          billion and
                                                                          below-average
                                                                          valuations whose
                                                                          business
                                                                          fundamentals are
                                                                          expected to
                                                                          improve
           -----------------------------------------------------------------------------------------------------------------
                  Small-Cap Value      Long-term growth of capital        Common stocks of   100           Between $100 million
                                       and income                         companies with                   and $1.5 billion
                                                                          market
                                                                          capitalizations
                                                                          of between $100
                                                                          million and $1.5
                                                                          billion and
                                                                          below-average
                                                                          price-to-
                                                                          earnings ratios
                                                                          relative to the
                                                                          market and their
                                                                          industry groups
 --------------------------------------------------------------------------------------------------------------------------------
  Enhanced Index  Tax-Efficient Equity Maximum after-tax growth           A broadly          More than 200 More than $5 billion
  Stock Funds                          of capital                         diversified
                                                                          portfolio of at
                                                                          least 200 common
                                                                          stocks of
                                                                          companies
                                                                          represented in
                                                                          the S&P 500
                                                                          Index with
                                                                          market
                                                                          capitalizations
                                                                          of more than $5
                                                                          billion
 --------------------------------------------------------------------------------------------------------------------------------
  International   Allianz Select       Capital appreciation               Common stocks of   30-60         More than $1 billion
  Stock Funds     International                                           companies
                                                                          located outside
                                                                          of the United
                                                                          States with
                                                                          market
                                                                          capitalizations
                                                                          of more than $1
                                                                          billion
           -----------------------------------------------------------------------------------------------------------------
                  International        Capital appreciation through       Common stocks of   200-250       More than $500 million
                                       investment in an international     foreign (non-
                                       portfolio; income is an incidental U.S.) issuers
                                       consideration                      (developed and
                                                                          emerging
                                                                          markets) with
                                                                          market
                                                                          capitalizations
                                                                          of more than
                                                                          $500 million
 --------------------------------------------------------------------------------------------------------------------------------
  Sector-Related  Innovation           Capital appreciation; no           Common stocks of   40            More than $200 million
  Stock Funds                          consideration is given to income   technology-
                                                                          related
                                                                          companies with
                                                                          market
                                                                          capitalizations
                                                                          of more than
                                                                          $200 million
           -----------------------------------------------------------------------------------------------------------------
                  Global Innovation    Capital appreciation; no           Common stocks of   30-60         More than $200 million
                                       consideration is given to income   U.S. and non-
                                                                          U.S. technology-
                                                                          related
                                                                          companies with
                                                                          market
                                                                          capitalizations
                                                                          of more than
                                                                          $200 million
</TABLE>

3  PIMCO Funds: Multi-Manager Series
<PAGE>

               Summary Information (continued)


Fund           The Funds provide a broad range of investment choices. The
Descriptions,  following Fund Summaries identify each Fund's investment
Performance    objective, principal investments and strategies, principal risks,
and Fees       performance information and fees and expenses. A more detailed
               "Summary of Principal Risks" describing principal risks of
               investing in the Funds begins after the Fund Summaries.

               It is possible to lose money on investments in the Funds. The
               fact that a fund had good performance in the past (for example,
               during the year ended 1999) is no assurance that the value of the
               Fund's investments will not decline in the future or appreciate
               at a slower rate. An investment in a Fund is not a deposit of a
               bank and is not guaranteed or insured by the Federal Deposit
               Insurance Corporation or any other government agency.




                                                                   Prospectus  4
<PAGE>

            PIMCO Capital Appreciation Fund

--------------------------------------------------------------------------------
Principal     Investment           Fund Focus             Approximate
Investments   Objective            Larger                 Capitalization Range
and           Seeks growth of      capitalization         At least $1 billion
Strategies    capital              common stocks

              Fund Category        Approximate            Dividend Frequency
              Blend Stocks         Number of Holdings     At least annually
                                   60-100

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with larger market capitalizations that have improving
            fundamentals (based on growth criteria) and whose stock is
            reasonably valued by the market (based on value criteria).

             In making investment decisions for the Fund, the portfolio
            management team considers the 1,000 largest publicly traded
            companies (in terms of market capitalization) in the U.S. The team
            screens the stocks in this universe for a series of growth
            criteria, such as dividend growth, earnings growth, relative
            growth of earnings over time (earnings momentum) and the company's
            history of meeting earnings targets (earnings surprise), and also
            value criteria, such as price-to-earnings, price-to-book and
            price-to-cash flow ratios. The team then selects individual stocks
            by subjecting the top 10% of the stocks in the screened universe
            to a rigorous analysis of company factors, such as strength of
            management, competitive industry position, and business prospects,
            and financial statement data, such as earnings, cash flows and
            profitability. The team may interview company management in making
            investment decisions. The Fund's capitalization criteria applies
            at the time of investment.

             The portfolio management team rescreens the universe frequently
            and seeks to consistently achieve a favorable balance of growth
            and value characteristics for the Fund. The team looks to sell a
            stock when it falls below the median ranking, has negative
            earnings surprises, or shows poor price performance relative to
            all stocks in the Fund's capitalization range or to companies in
            the same business sector. A stock may also be sold if its
            weighting in the portfolio becomes excessive (normally above 2% of
            the Fund's investments).

             The Fund intends to be fully invested in common stock (aside from
            certain cash management practices) and will not make defensive
            investments in response to unfavorable market and other
            conditions.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>
           <S>                  <C>                             <C>
           .  Market Risk       . Growth Securities Risk        . Credit Risk
           .  Issuer Risk       . Focused Investment Risk       . Management Risk
           .  Value Securities
              Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Class A shares, but the
            returns do not reflect the impact of sales charges (loads). If
            they did, the returns would be lower than those shown. Unlike the
            bar chart, performance for Class A, B and C shares in the Average
            Annual Total Returns table reflects the impact of sales charges.
            For periods prior to the inception of Class A, B and C shares
            (1/20/97), performance information shown in the bar chart and
            tables for those classes is based on the performance of the Fund's
            Institutional Class shares, which are offered in a different
            prospectus. The prior Institutional Class performance has been
            adjusted to reflect the actual sales charges (in the Average
            Annual Total Returns table only), distribution and/or service
            (12b-1) fees, administrative fees and other expenses paid by Class
            A, B and C shares. Past performance is no guarantee of future
            results.

5  PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Capital Appreciation Fund (continued)

            Calendar Year Total Returns -- Class A

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00-
                                                            9/30/00       17.41%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (10/1/99-
                                                            12/31/99)     23.73%
                                                            --------------------
                                                            Lowest (7/1/98-
                                                            9/30/98)     -14.22%

                                    [GRAPH]
                           1992               7.08%
                           1993              17.24%
                           1994              -4.64%
                           1995              36.61%
                           1996              26.29%
                           1997              33.72%
                           1998              17.18%
                           1999              22.19%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
<CAPTION>
                                                                  Fund Inception
                                                   1 Year 5 Years (3/8/91)(/3/)
            --------------------------------------------------------------------
         <S>                                       <C>    <C>     <C>
         Class A                                   15.47% 25.57%  18.84%
            --------------------------------------------------------------------
         Class B                                   16.31% 25.92%  18.89%
            --------------------------------------------------------------------
         Class C                                   20.32% 26.07%  18.72%
            --------------------------------------------------------------------
         S&P 500 Index(/1/)                        21.04% 28.56%  19.75%
            --------------------------------------------------------------------
         Lipper Multi-Cap Core Funds Average(/2/)  20.63% 23.01%  17.15%
            --------------------------------------------------------------------
</TABLE>

            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Multi-Cap Core Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest in companies with a variety of
                capitalization ranges without concentrating in any one market
                capitalization range over an extended period of time. It does
                not take into account sales charges.
            (3) The Fund began operations on 3/8/91. Index comparisons begin
                on 2/28/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class A, B or C shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)

<TABLE>
<CAPTION>
                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
            ------------------------------------------------------------------------------------------------------
         <S>      <C>                                              <C>
         Class A  5.50%                                            1%(/1/)
            ------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
            ------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
            ------------------------------------------------------------------------------------------------------
</TABLE>

            (1) Imposed only in certain circumstances where Class A shares are
                purchased without a front-end sales charge at the time of
                purchase.
            (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 "Investment
                Options--Class A, B and C Shares--Contingent Deferred Sales
                Charges (CDSCs)--Class B Shares."
            (3) The CDSC on Class C shares is imposed only on shares redeemed
                in the first year.

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                               Distribution                    Total Annual
                      Advisory and/or Service    Other         Fund Operating
         Share Class  Fees     (12b-1) Fees(/1/) Expenses(/2/) Expenses
            -----------------------------------------------------------------
         <S>          <C>      <C>               <C>           <C>
         Class A      0.45%    0.25%             0.41%         1.11%
            -----------------------------------------------------------------
         Class B      0.45     1.00              0.41          1.86
            -----------------------------------------------------------------
         Class C      0.45     1.00              0.41          1.86
            -----------------------------------------------------------------
</TABLE>

            (1) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, Class B or Class C shareholders may, depending upon
                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.
            (2) Other Expenses reflects a 0.40% Administrative Fee paid by the
                class, which is subject to a reduction of 0.05% on average daily
                net assets attributable in the aggregate to the Fund's Class A,
                B and C shares in excess of $2.5 billion, and 0.01% in other
                expenses attributable to that class during the most recent
                fiscal year.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Fund with the costs
            of investing in other mutual funds. The Examples assume that you
            invest $10,000 in the noted class of shares for the time periods
            indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
                                                                                           Example: Assuming you do not
                      Example: Assuming you redeem your shares at the end of each period   redeem your shares
         Share Class  Year 1           Year 3           Year 5           Year 10           Year 1 Year 3 Year 5 Year 10
            -----------------------------------------------------------------------------------------------------------
         <S>          <C>              <C>              <C>              <C>               <C>    <C>    <C>    <C>
         Class A      $657             $883             $1,128           $1,827            $657   $883   $1,128 $1,827
            -----------------------------------------------------------------------------------------------------------
         Class B       689              885              1,206            1,887             189    585    1,006  1,887
            -----------------------------------------------------------------------------------------------------------
         Class C       289              585              1,006            2,180             189    585    1,006  2,180
            -----------------------------------------------------------------------------------------------------------
</TABLE>
                                                                   Prospectus
                                                                               6
<PAGE>

            PIMCO Equity Income Fund

--------------------------------------------------------------------------------
<TABLE>
<S>  <C>
Principal     Investment           Fund Focus             Approximate Capitalization Range
Investments   Objective            Income producing       More than
and           Seeks current        common stocks with     $2 billion
Strategies    income as a          potential for
              primary              capital                Dividend Frequency
              objective;           appreciation           Quarterly
              long-term
              growth of            Approximate Number
              capital is a         of Holdings
              secondary            40-50
              objective

              Fund Category
              Value Stocks
</TABLE>

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in income-producing (e.g.,
            dividend-paying) common stocks of companies with market
            capitalizations of more than $2 billion at the time of investment.
            The Fund may also invest to a limited degree in convertible
            securities and preferred stocks.

             The Fund's initial selection universe consists of the 1,000
            largest publicly traded companies (in terms of market
            capitalization) in the U.S. The portfolio managers classify the
            universe by industry. They then identify the most undervalued
            stocks in each industry based mainly on relative P/E ratios,
            calculated both with respect to trailing operating earnings and
            forward earnings estimates. From this group of stocks, the Fund
            buys approximately 25 stocks with the highest dividend yields. The
            portfolio managers then screen the most undervalued companies in
            each industry by dividend yield to identify the highest yielding
            stocks in each industry. From this group, the Fund buys
            approximately 25 additional stocks with the lowest P/E ratios.

             In selecting stocks, the portfolio managers consider quantitative
            factors such as price momentum (based on changes in stock price
            relative to changes in overall market prices), earnings momentum
            (based on analysts' earnings per share estimates and revisions to
            those estimates), relative dividend yields, valuation relative to
            the overall market and trading liquidity. The portfolio managers
            may replace a stock when a stock within the same industry group
            has a considerably higher dividend yield or lower valuation than
            the Fund's current holding.

             The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). In response to unfavorable market and
            other conditions, the Fund may make temporary investments of some
            or all of its assets in high-quality fixed income securities. This
            would be inconsistent with the Fund's investment objective and
            principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>
           <S>                      <C>                      <C>
           . Market Risk            .Foreign Investment Risk .Credit Risk
           . Issuer Risk            .Currency Risk           .Management Risk
           . Value Securities Risk  .Interest Rate Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Class A shares, but the
            returns do not reflect the impact of sales charges (loads). If
            they did, the returns would be lower than those shown. Unlike the
            bar chart, performance for Class A, B and C shares in the Average
            Annual Total Returns table reflects the impact of sales charges.
            For periods prior to the inception of Class A, B and C shares
            (1/20/97), performance information shown in the bar chart and
            tables for those classes is based on the performance of the Fund's
            Institutional Class shares, which are offered in a different
            prospectus. The prior Institutional Class performance has been
            adjusted to reflect the actual sales charges (in the Average
            Annual Total Returns table only), distribution and/or service
            (12b-1) fees, administrative fees and other expenses paid by Class
            A, B and C shares. Prior to May 8, 2000, the Fund had a different
            sub-adviser and would not necessarily have achieved the
            performance results shown on the next page under its current
            investment management arrangements. Past performance is no
            guarantee of future results.

7  PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Equity Income Fund (continued)

            Calendar Year Total Returns -- Class A

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00-9/30/00 7.02%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4/1/99-
                                                            6/30/99)      16.00%
                                                            --------------------
                                                            Lowest (7/1/98-
                                                            9/30/98)     -10.98%

                                    [GRAPH]

                            1992            14.29%
                            1993             8.03%
                            1994            -2.00%
                            1995            32.94%
                            1996            21.00%
                            1997            30.88%
                            1998             8.03%
                            1999            -2.31%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                                  Fund Inception
                                                  1 Year  5 Years (3/8/91)(/3/)
            --------------------------------------------------------------------
         <S>                                      <C>     <C>     <C>
         Class A                                   -7.67% 15.99%  13.09%
            --------------------------------------------------------------------
         Class B                                   -6.71% 16.26%  13.14%
            --------------------------------------------------------------------
         Class C                                   -3.81% 16.45%  12.97%
            --------------------------------------------------------------------
         S&P 500 Index(/1/)                        21.04% 28.56%  19.75%
            --------------------------------------------------------------------
         Lipper Equity Income Funds Average(/2/)    3.62% 17.60%  14.24%
            --------------------------------------------------------------------
</TABLE>

            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Equity Income Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that seek relatively high current income and
                growth of income through investing 65% or more of their
                portfolios in dividend-paying equities. It does not take into
                account sales charges.
            (3) The Fund began operations on 3/8/91. Index comparisons begin
                on 2/28/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class A, B or C shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)

<TABLE>
<CAPTION>
                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
            ------------------------------------------------------------------------------------------------------
         <S>      <C>                                              <C>
         Class A  5.50%                                            1%(/1/)
            ------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
            ------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
            ------------------------------------------------------------------------------------------------------
</TABLE>

            (1) Imposed only in certain circumstances where Class A shares are
                purchased without a front-end sales charge at the time of
                purchase.
            (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 "Investment
                Options--Class A, B and C Shares--Contingent Deferred Sales
                Charges (CDSCs)--Class B Shares."
            (3) The CDSC on Class C shares is imposed only on shares redeemed
                in the first year.

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                               Distribution                    Total Annual
                      Advisory and/or Service    Other         Fund Operating
         Share Class  Fees     (12b-1) Fees(/1/) Expenses(/2/) Expenses
            -----------------------------------------------------------------
         <S>          <C>      <C>               <C>           <C>
         Class A      0.45%    0.25%             0.42%         1.12%
            -----------------------------------------------------------------
         Class B      0.45     1.00              0.42          1.87
            -----------------------------------------------------------------
         Class C      0.45     1.00              0.42          1.87
            -----------------------------------------------------------------
</TABLE>

            (1) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, Class B or Class C shareholders may, depending upon
                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.
            (2) Other Expenses reflects a 0.40% Administrative Fee paid by the
                class, which is subject to a reduction of 0.05% on average daily
                net assets attributable in the aggregate to the Fund's Class A,
                B and C shares in excess of $2.5 billion, and 0.02% in other
                expenses attributable to that class during the most recent
                fiscal year.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Fund with the costs
            of investing in other mutual funds. The Examples assume that you
            invest $10,000 in the noted class of shares for the time periods
            indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
                                                                                           Example: Assuming you do not
                      Example: Assuming you redeem your shares at the end of each period   redeem your shares
         Share Class  Year 1           Year 3           Year 5           Year 10           Year 1 Year 3 Year 5 Year 10
            -----------------------------------------------------------------------------------------------------------
         <S>          <C>              <C>              <C>              <C>               <C>    <C>    <C>    <C>
         Class A      $658             $886             $1,133           $1,838            $658   $886   $1,133 $1,838
            -----------------------------------------------------------------------------------------------------------
         Class B       690              888              1,211            1,898             190    588    1,011  1,898
            -----------------------------------------------------------------------------------------------------------
         Class C       290              588              1,011            2,190             190    588    1,011  2,190
            -----------------------------------------------------------------------------------------------------------
</TABLE>

                                                                   Prospectus
                                                                               8
<PAGE>

             PIMCO Global Innovation Fund

--------------------------------------------------------------------------------
Principal    Investment           Fund Focus             Approximate
Investments  Objective            Common stocks of       Capitalization Range
and          Seeks capital        U.S. and non-U.S.      More than $200
Strategies   appreciation;        technology-related     million
             no                   companies
             consideration                               Dividend Frequency
             is given to          Approximate Number     At least annually
             income               of Holdings
                                  30-60
             Fund Category
             Sector-Related
             Stocks

               The Fund seeks to achieve its investment objective by normally
             investing at least 65% of its assets in common stocks of U.S. and
             non-U.S. companies which utilize new, creative or different, or
             "innovative," technologies to gain a strategic competitive
             advantage in their industry, as well as companies that provide and
             service those technologies. The Fund identifies its investment
             universe of technology-related companies primarily by reference to
             classifications made by independent firms, such as Standard &
             Poor's (for example, companies classified as "Information
             Technology" companies), and by identifying companies that derive a
             substantial portion of their revenues from the manufacture, sale
             and/or service of technological products. Although the Fund
             emphasizes companies which utilize technologies, it is not
             required to invest exclusively in a particular business sector or
             industry.

               The portfolio manager selects stocks for the Fund using a
             "growth" style. The portfolio manager seeks to identify
             technology-related companies with well-defined "wealth creating"
             characteristics, including superior earnings growth (relative to
             companies in the same industry or the market as a whole), high
             profitability and consistent, predictable earnings. In addition,
             through fundamental research, the portfolio manager seeks to
             identify companies that are gaining market share, have superior
             management and possess a sustainable competitive advantage, such
             as superior or innovative products, personnel and distribution
             systems. The Fund looks to sell a stock when the portfolio manager
             believes that earnings or market sentiment are disappointing, if
             the company does not meet or exceed consensus estimates on
             revenues and/or earnings or if an alternative investment is more
             attractive.

               Although the Fund invests principally in common stocks, the Fund
             may also invest in other types of equity securities, including
             preferred stocks and convertible securities. The Fund may invest a
             substantial portion of its assets in the securities of smaller
             capitalization companies and securities issued in initial public
             offerings (IPOs). The Fund will invest in the securities of
             issuers located in at least three countries (one of which may be
             the United States). Although the Fund invests primarily in
             securities traded principally in the securities markets of
             developed countries, the Fund has no other prescribed limits on
             geographic asset distribution and may invest in any foreign
             securities market in the world, including in developing, or
             "emerging," markets. The Fund may utilize foreign currency
             exchange contracts and derivative instruments (such as stock index
             futures contracts), primarily for risk management or hedging
             purposes.

               In response to unfavorable market and other conditions, the Fund
             may make temporary investments of some or all of its assets in
             high-quality fixed income securities. This would be inconsistent
             with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal    Among the principal risks of investing in the Fund, which could
Risks        adversely affect its net asset value, yield and total return, are:

<TABLE>
             <S>                <C>                      <C>
             . Market Risk      . Smaller Company Risk    . Currency Risk
             . Issuer Risk      . Liquidity Risk          . Focused Investment
             . Technology       . Derivatives Risk          Risk
               Related Risk     . Foreign Investment Risk . Leveraging Risk
             . Growth           . Emerging Markets Risk   . Credit Risk
               Securities Risk                            . Management Risk
             . IPO Risk

</TABLE>

             Please see "Summary of Principal Risks" following the Fund
             Summaries for a description of these and other risks of investing
             in the Fund.

--------------------------------------------------------------------------------
Performance  The Fund commenced operations in December 1999 and does not yet
Information  have a full calendar year of performance. Thus, no bar chart or
             Average Annual Total Returns table is included for the Fund.



  PIMCO Funds: Multi-Manager Series
9
<PAGE>

            PIMCO Global Innovation Fund (continued)

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class A, B or C shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)

<TABLE>
<CAPTION>
                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
            ------------------------------------------------------------------------------------------------------
         <S>      <C>                                              <C>
         Class A  5.50%                                            1%(/1/)
            ------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
            ------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
            ------------------------------------------------------------------------------------------------------
</TABLE>

            (1) Imposed only in certain circumstances where Class A shares are
                purchased without a front-end sales charge at the time of
                purchase.
            (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 "Investment
                Options--Class A, B and C Shares--Contingent Deferred Sales
                Charges (CDSCs)--Class B Shares."
            (3) The CDSC on Class C shares is imposed only on shares redeemed
                in the first year.

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                               Distribution                    Total Annual                  Net Fund
                      Advisory and/or Service    Other         Fund Operating Expense        Operating
         Share Class  Fees     (12b-1) Fees(/1/) Expenses(/2/) Expenses       Reduction(/3/) Expenses(/3/)
            ----------------------------------------------------------------------------------------------
         <S>          <C>      <C>               <C>           <C>            <C>            <C>
         Class A      1.00%    0.25%             0.66%         1.91%          (0.06%)        1.85%
            ----------------------------------------------------------------------------------------------
         Class B      1.00     1.00              0.70          2.70           (0.10)         2.60
            ----------------------------------------------------------------------------------------------
         Class C      1.00     1.00              0.70          2.70           (0.10)         2.60
            ----------------------------------------------------------------------------------------------
</TABLE>

            (1) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, Class B or Class C shareholders may, depending upon
                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.
            (2) Other Expenses reflects a 0.60% Administrative Fee paid by the
                class, which is subject to a reduction of 0.05% on average daily
                net assets attributable in the aggregate to the Fund's Class A,
                B and C shares in excess of $2.5 billion, and 0.06%, 0.10% and
                0.10% in organizational expenses ("Organizational Expenses")
                attributable to Class A, Class B, and Class C shares,
                respectively, during the most recent fiscal year.
            (3) Net Expenses reflect the effect of a contractual agreement by
                PIMCO Advisors to waive, reduce or reimburse its Administrative
                Fee for each class to the extent Annual Fund Operating Expenses
                exceeded, due to the payment of organizational and certain other
                expenses, 1.85% for Class A shares and 2.60% for Class B and
                Class C shares during the Fund's most recent (initial) fiscal
                year. Under the Expense Limitation Agreement, PIMCO Advisors may
                recoup these waivers and reimbursements (which do not continue
                after the Fund's initial fiscal year) in future periods, not
                exceeding three years, provided total expenses, including such
                recoupment, do not exceed the annual expense limit.


            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Fund with the costs
            of investing in other mutual funds. The Examples assume that you
            invest $10,000 in the noted class of shares for the time periods
            indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
                                                                                           Example: Assuming you do not
                      Example: Assuming you redeem your shares at the end of each period   redeem your shares
         Share Class  Year 1           Year 3           Year 5           Year 10           Year 1 Year 3 Year 5 Year 10
            -----------------------------------------------------------------------------------------------------------
         <S>          <C>              <C>              <C>              <C>               <C>    <C>    <C>    <C>
         Class A      $728             $1,099           $1,494           $2,594            $728   $1,099 $1,494 $2,594
            -----------------------------------------------------------------------------------------------------------
         Class B       763              1,107            1,577            2,646             263      807  1,377  2,646
            -----------------------------------------------------------------------------------------------------------
         Class C       363                807            1,377            2,919             263      807  1,377  2,919
            -----------------------------------------------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 10
<PAGE>

            PIMCO Growth Fund

--------------------------------------------------------------------------------
Principal     Investment           Fund Focus             Approximate
Investments   Objective            Larger                 Capitalization
and           Seeks long-term      capitalization         Range
Strategies    growth of            common stocks          At least $5 billion
              capital; income
              is an                Approximate Number     Dividend Frequency
              incidental           of Holdings            At least annually
              consideration        35-40

              Fund Category
              Growth Stocks

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of "growth"
            companies with market capitalizations of at least $5 billion at
            the time of investment.

             The portfolio manager selects stocks for the Fund using a
            "growth" style. The portfolio manager seeks to identify companies
            with well-defined "wealth creating" characteristics, including
            superior earnings growth (relative to companies in the same
            industry or the market as a whole), high profitability and
            consistent, predictable earnings. In addition, through fundamental
            research, the portfolio manager seeks to identify companies that
            are gaining market share, have superior management and possess a
            sustainable competitive advantage, such as superior or innovative
            products, personnel and distribution systems. The Fund looks to
            sell a stock when the portfolio manager believes that its
            earnings, market sentiment or relative performance are
            disappointing or if an alternative investment is more attractive.

             The Fund may also invest to a limited degree in other kinds of
            equity securities, including preferred stocks and convertible
            securities. The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). The Fund has in the past invested a
            significant portion of its assets in technology or technology-
            related companies, although there is no assurance that it will
            continue to do so in the future.

             In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>
           <S>                <C>                      <C>
           . Market Risk      .Foreign Investment Risk .Focused Investment Risk
           . Issuer Risk      .Currency Risk           .Credit Risk
           . Growth           .Technology Related Risk .Management Risk
             Securities Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance Information
            The top of the next page shows summary performance information for
            the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Class C shares, but the
            returns do not reflect the impact of sales charges (loads). If
            they did, the returns would be lower than those shown. Unlike the
            bar chart, performance for Class A, B and C shares in the Average
            Annual Total Returns table reflects the impact of sales charges.
            For periods prior to the inception of Class A shares (10/26/90)
            and Class B shares (5/23/95), performance information shown in the
            Average Annual Total Returns table for those classes is based on
            the performance of the Fund's Class C shares. The prior Class C
            performance has been adjusted to reflect the actual sales charges,
            distribution and/or service (12b-1) fees, administrative fees and
            other expenses paid by Class A and B shares. Prior to March 6,
            1999, the Fund had a different sub-adviser and would not
            necessarily have achieved the performance results shown on the
            next page under its current investment management arrangements.
            Past performance is no guarantee of future results.

  PIMCO Funds: Multi-Manager Series
11
<PAGE>

            PIMCO Growth Fund (continued)

            Calendar Year Total Returns -- Class C

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00-9/30/00 4.43%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (10/1/99-
                                                            12/31/99)     36.21%
                                                            --------------------
                                                            Lowest (7/1/90-
                                                            9/30/90)     -13.14%

                                    [GRAPH]

                            1990             0.29%
                            1991            41.88%
                            1992             2.08%
                            1993             9.32%
                            1994            -0.75%
                            1995            27.47%
                            1996            17.52%
                            1997            21.84%
                            1998            38.90%
                            1999            39.83%

                  Calendar Year End (through12/31)

            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
<CAPTION>
                                                                Fund Inception
                                        1 Year 5 Years 10 Years (2/24/84)(/3/)
            ------------------------------------------------------------------
         <S>                            <C>    <C>     <C>      <C>
         Class A                        33.33% 28.36%  18.99%   19.71%
            ------------------------------------------------------------------
         Class B                        34.78% 28.65%  19.06%   19.75%
            ------------------------------------------------------------------
         Class C                        38.83% 28.80%  18.77%   19.25%
            ------------------------------------------------------------------
         S&P 500 Index(/1/)             21.04% 28.56%  18.21%   18.60%
            ------------------------------------------------------------------
         Lipper Large-Cap Growth Funds
          Average(/2/)                  40.54% 29.41%  18.88%   17.74%
            ------------------------------------------------------------------
</TABLE>

            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Large-Cap Growth Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest primarily in companies with market
                capitalizations of greater than 300% of the dollar-weighted
                median market capitalization of the S&P Mid-Cap 400 Index. It
                does not take into account sales charges.
            (3) The Fund began operations on 2/24/84. Index comparisons begin
                on 2/29/84.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class A, B or C shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)

<TABLE>
<CAPTION>
                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
            ------------------------------------------------------------------------------------------------------
         <S>      <C>                                              <C>
         Class A  5.50%                                            1%(/1/)
            ------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
            ------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
            ------------------------------------------------------------------------------------------------------
</TABLE>

            (1) Imposed only in certain circumstances where Class A shares are
                purchased without a front-end sales charge at the time of
                purchase.
            (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 "Investment
                Options--Class A, B and C Shares--Contingent Deferred Sales
                Charges (CDSCs)--Class B Shares."
            (3) The CDSC on Class C shares is imposed only on shares redeemed
                in the first year.

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                               Distribution                    Total Annual
                      Advisory and/or Service    Other         Fund Operating
         Share Class  Fees     (12b-1) Fees(/1/) Expenses(/2/) Expenses
            -----------------------------------------------------------------
         <S>          <C>      <C>               <C>           <C>
         Class A      0.50%    0.25%             0.41%         1.16%
            -----------------------------------------------------------------
         Class B      0.50     1.00              0.41          1.91
            -----------------------------------------------------------------
         Class C      0.50     1.00              0.41          1.91
            -----------------------------------------------------------------
</TABLE>

            (1) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, Class B or Class C shareholders may, depending upon
                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.
            (2) Other Expenses reflects a 0.40% Administrative Fee paid by the
                class, which is subject to a reduction of 0.05% on average daily
                net assets attributable in the aggregate to the Fund's Class A,
                B and C shares in excess of $2.5 billion, and 0.01% in other
                expenses attributable to that class during the most recent
                fiscal year.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Fund with the costs
            of investing in other mutual funds. The Examples assume that you
            invest $10,000 in the noted class of shares for the time periods
            indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
                                                                                           Example: Assuming you do not
                      Example: Assuming you redeem your shares at the end of each period   redeem your shares
         Share Class  Year 1           Year 3           Year 5           Year 10           Year 1 Year 3 Year 5 Year 10
            -----------------------------------------------------------------------------------------------------------
         <S>          <C>              <C>              <C>              <C>               <C>    <C>    <C>    <C>
         Class A      $662             $898             $1,153           $1,881            $662   $898   $1,153 $1,881
            -----------------------------------------------------------------------------------------------------------
         Class B       694              900              1,232            1,941             194    600    1,032  1,941
            -----------------------------------------------------------------------------------------------------------
         Class C       294              600              1,032            2,233             194    600    1,032  2,233
            -----------------------------------------------------------------------------------------------------------
</TABLE>
                                                                   Prospectus
                                                                              12
<PAGE>

            PIMCO Growth & Income Fund

--------------------------------------------------------------------------------
Principal     Investment         Fund Focus             Approximate
Investments   Objective          Medium and large       Capitalization
and           Seeks long-term    capitalization         Range
Strategies    growth of          common stocks          At least $1 billion
              capital;
              current income     Approximate Number     Dividend Frequency
              is a secondary     of Holdings            At least annually
              objective          40-60

              Fund Category
              Blend Stocks

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in securities of companies
            with market capitalizations of at least $1 billion at the time of
            investment. The Fund may invest up to 75% of its assets in
            securities selected for their growth potential. The Fund will
            normally invest at least 25% of its assets in securities selected
            for their income potential, including dividend-paying common
            stocks, preferred stocks, corporate bonds, convertible securities
            and real estate investment trusts (REITs).

             When selecting securities for the Fund's "growth" segment, the
            portfolio managers seek to identify companies with well-defined
            "wealth creating" characteristics, including superior earnings
            growth (relative to companies in the same industry or the market
            as a whole), high profitability and consistent, predictable
            earnings. In addition, through fundamental research, the portfolio
            managers seek to identify companies that are gaining market share,
            have superior management and possess a sustainable competitive
            advantage, such as superior or innovative products, personnel and
            distribution systems. The Fund's portfolio managers may choose to
            sell a stock in the "growth" segment when they believe that its
            earnings will be disappointing or that market sentiment on the
            company will turn negative. The portfolio managers will also
            consider selling a stock if the company does not meet the
            managers' estimates on revenues and/or earnings, or if an
            alternative investment is deemed to be more attractive.

             When selecting securities for the Fund's "Income" segment, the
            portfolio managers seek to identify companies with strong
            operating fundamentals that offer potential for capital
            appreciation and that also have a dividend yield in excess of the
            yield on the S&P 500 Index. The portfolio managers may replace an
            "income" security when another security with a similar risk-to-
            reward profile offers either better potential for capital
            appreciation or a higher yield than the Fund's current holding. To
            achieve its income objective, the Fund may also invest to a
            limited degree in preferred stocks, convertible securities and
            REITs. The Fund may invest up to 10% of its assets in corporate
            bonds, which will typically consist of investment grade securities
            of varying maturities but may also include high yield securities
            ("junk bonds") rated at least B by Standard & Poor's Rating
            Services or Moody's Investors Service, Inc. or, if unrated,
            determined by the Adviser to be of comparable quality.

             The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). The Fund has in the past invested a
            significant portion of its assets in technology or technology-
            related companies, although there is no assurance that it will
            continue to do so in the future. In response to unfavorable market
            and other conditions, the Fund may make temporary investments of
            some or all of its assets in high-quality fixed income securities.
            This would be inconsistent with the Fund's investment objective
            and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:
              . Market Risk          . Liquidity Risk     . Interest Rate Risk
              . Issuer Risk          . Foreign Investment . High Yield Risk
              . Growth Securities      Risk               . Credit Risk
                Risk                 . Currency Risk      . Management Risk
              . Value Securities     . Focused Investment
                Risk                   Risk
              . Smaller Company Risk . Technology Related Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Institutional Class shares,
            which are offered in a different prospectus. This is because the
            Fund did not offer Class A, B or C shares during the periods
            shown. Although Institutional Class and Class A, B and C shares
            would have similar annual returns (because all the Fund's shares
            represent interests in the same portfolio of securities),
            Institutional Class performance would be higher than Class A, B or
            C performance because of the lower expenses and no sales charges
            paid by Institutional Class shares. The Average Annual Total
            Returns table also shows estimated historical performance for
            Class A, B, and C shares based on the performance of the Fund's
            Institutional Class shares, adjusted to reflect the actual sales
            charges (loads), distribution and/or service (12b-1) fees,
            administrative fees and other expenses paid by Class A, B and C
            shares. The performance information on the next page for periods
            prior to August 1, 2000 reflects the Fund's advisory fee rate in
            effect prior to that date (0.63% per annum), which is higher than
            the current rate (0.60% per annum). Prior to July 1, 1999, the
            Fund had a different sub-adviser and would not necessarily have
            achieved the performance results shown on the next page under its
            current investment management arrangements. In addition, the Fund
            changed its investment objective and policies on August 1, 2000;
            the performance results shown on the next page would not
            necessarily have been achieved had the Fund's current objective
            and policies then been in effect. Past performance is no guarantee
            of future results.

13 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Growth & Income Fund (continued)

            Calendar Year Total Returns -- Institutional Class

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00-
                                                            9/30/00       23.58%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (10/1/99-
                                                            12/31/99)     40.12%
                                                            --------------------
                                                            Lowest (7/1/98-
                                                            9/30-98)     -11.53%
                  Calendar Year End (through 12/31)


                                    [GRAPH]

                                 Annual Return

                              95          31.72%
                              96          17.31%
                              97          16.22%
                              98          29.89%
                              99          51.81%

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                                    Fund Inception
                                         1 Year       5 Years       (12/28/94)(/3/)
            -----------------------------------------------------------------------
         <S>                             <C>          <C>           <C>
         Institutional Class             51.81%       28.77%        28.72%
            -----------------------------------------------------------------------
         Class A                         42.90%       26.82%        26.77%
            -----------------------------------------------------------------------
         Class B                         45.99%       27.17%        27.20%
            -----------------------------------------------------------------------
         Class C                         49.30%       27.32%        27.27%
            -----------------------------------------------------------------------
         S&P Mid-Cap 400 Index(/1/)      14.73%       23.05%        23.05%
            -----------------------------------------------------------------------
         Lipper Large-Cap Core Funds
          Average(/2/)                   22.77%       25.49%        25.49%
            -----------------------------------------------------------------------
</TABLE>

            (1) The S&P Mid-Cap 400 Index is an unmanaged index of middle
                capitalization U.S. stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Large-Cap Core Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest primarily in companies with market
                capitalizations of greater than 300% of the dollar-weighted
                median market capitalization of the S&P Mid-Cap 400 Index. It
                does not take into account sales charges. The Lipper Large-Cap
                Core Funds Average replaced the Lipper Mid-Cap Fund Average (a
                total return performance average of funds tracked by Lipper
                Analytical Services, Inc. that invest primarily in companies
                with market capitalizations of less than $5 billion at the
                time of investment) because PIMCO Advisors believes the Large-
                Cap Core Funds Average is more representative of the Fund's
                investment strategies. For periods ended December 31, 1999,
                the 1 Year, 5 Years and Fund Inception average annual total
                returns of the Lipper Mid-Cap Fund Average were 39.38%, 23.07%
                and 23.07%, respectively.
            (3) The Fund began operations on 12/28/94. Index comparisons begin
                on 12/31/94.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class A, B or C shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)

<TABLE>
<CAPTION>
                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
            ------------------------------------------------------------------------------------------------------
         <S>      <C>                                              <C>
         Class A  5.50%                                            1%(/1/)
            ------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
            ------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
            ------------------------------------------------------------------------------------------------------
</TABLE>

            (1) Imposed only in certain circumstances where Class A shares are
                purchased without a front-end sales charge at the time of
                purchase.
            (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 "Investment
                Options--Class A, B and C Shares--Contingent Deferred Sales
                Charges (CDSCs)--Class B Shares."
            (3) The CDSC on Class C shares is imposed only on shares redeemed
                in the first year.

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                                Distribution                     Total Annual
                      Advisory  and/or Service     Other         Fund Operating
         Share Class  Fees(/1/) (12b-1) Fees (/2/) Expenses(/3/) Expenses
            -------------------------------------------------------------------
         <S>          <C>       <C>                <C>           <C>
         Class A      0.60%     0.25%              0.65%         1.50%
            -------------------------------------------------------------------
         Class B      0.60      1.00               0.65          2.25
            -------------------------------------------------------------------
         Class C      0.60      1.00               0.65          2.25
            -------------------------------------------------------------------
</TABLE>

            (1) On August 1, 2000, the Fund's advisory fee rate decreased by
                0.03% to 0.60% per annum.
            (2) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, Class B or Class C shareholders may, depending upon
                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.
            (3) Other Expenses reflects a 0.50% Administrative Fee paid by the
                class, which is subject to a reduction of 0.05% on average daily
                net assets attributable in the aggregate to the Fund's Class A,
                B and C shares in excess of $2.5 billion, and 0.15% in other
                expenses estimated to be attributable to the class during the
                current fiscal year.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Fund with the costs
            of investing in other mutual funds. The Examples assume that you
            invest $10,000 in the noted class of shares for the time periods
            indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
                      Example: Assuming you redeem your shares at the
                      end of each period                               Example: Assuming you do not redeem your shares
         Share Class  Year 1      Year 3      Year 5      Year 10      Year 1      Year 3      Year 5      Year 10
            ----------------------------------------------------------------------------------------------------------
         <S>          <C>         <C>         <C>         <C>          <C>         <C>         <C>         <C>
         Class A      $694        $  998      $1,323      $2,242       $694        $998        $1,323      $2,242
            ----------------------------------------------------------------------------------------------------------
         Class B       728         1,003       1,405       2,301        228         703         1,205       2,301
            ----------------------------------------------------------------------------------------------------------
         Class C       328           703       1,205       2,585        228         703         1,205       2,585
            ----------------------------------------------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 14
<PAGE>

            PIMCO Innovation Fund

--------------------------------------------------------------------------------
Principal     Investment           Fund Focus             Approximate
Investments   Objective            Common stocks of       Capitalization Range
and           Seeks capital        technology-related     More than $200
Strategies    appreciation;        companies              million
              no
              consideration        Approximate Number     Dividend Frequency
              is given to          of Holdings            At least annually
              income               40

              Fund
              Category
              Sector-Related
              Stocks


            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            which utilize new, creative or different, or "innovative,"
            technologies to gain a strategic competitive advantage in their
            industry, as well as companies that provide and service those
            technologies. The Fund identifies its investment universe of
            technology-related companies primarily by reference to
            classifications made by independent firms, such as Standard &
            Poor's (for example, companies classified as "Information
            Technology" companies), and by identifying companies that derive a
            substantial portion of their revenues from the manufacture, sale
            and/or service of technological products. Although the Fund
            emphasizes companies which utilize technologies, it is not
            required to invest exclusively in companies in a particular
            business sector or industry.

             The portfolio manager selects stocks for the Fund using a
            "growth" style. The portfolio manager seeks to identify
            technology-related companies with well-defined "wealth creating"
            characteristics, including superior earnings growth (relative to
            companies in the same industry or the market as a whole), high
            profitability and consistent, predictable earnings. In addition,
            through fundamental research, the portfolio manager seeks to
            identify companies that are gaining market share, have superior
            management and possess a sustainable competitive advantage, such
            as superior or innovative products, personnel and distribution
            systems. The Fund looks to sell a stock when the portfolio manager
            believes that earnings or market sentiment are disappointing, if
            the company does not meet or exceed consensus estimates on
            revenues and/or earnings or if an alternative investment is more
            attractive.

             Although the Fund invests principally in common stocks, the Fund
            may also invest in other kinds of equity securities, including
            preferred stocks and convertible securities. The Fund may invest a
            substantial portion of its assets in the securities of smaller
            capitalization companies. The Fund may invest up to 15% of its
            assets in foreign securities, except that it may invest without
            limit in American Depository Receipts (ADRs). In response to
            unfavorable market and other conditions, the Fund may make
            temporary investments of some or all of its assets in high-quality
            fixed income securities. This would be inconsistent with the
            Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>
           <S>                    <C>                       <C>
           .  Market Risk         . Smaller Company Risk    . Currency Risk
           .  Issuer Risk         . Liquidity Risk          . Credit Risk
           .  Focused Investment  . Foreign Investment Risk . Management Risk
              Risk                . Technology Related Risk
           .  Growth Securities
              Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Class A shares, but the
            returns do not reflect the impact of sales charges (loads). If
            they did, the returns would be lower than those shown. Unlike the
            bar chart, performance for Class A, B and C shares in the Average
            Annual Total Returns table reflects the impact of sales charges.
            For periods prior to the inception of Class B shares (5/22/95),
            performance information shown in the Average Annual Total Returns
            table for that class is based on the performance of the Fund's
            Class A shares. The prior Class A performance has been adjusted to
            reflect the actual sales charges, distribution and/or service
            (12b-1) fees, administrative fees and other expenses paid by Class
            B shares. Prior to March 6, 1999, the Fund had a different sub-
            adviser and would not necessarily have achieved the performance
            results shown on the next page under its current investment
            management arrangements. Past performance is no guarantee of
            future results.

  PIMCO Funds: Multi-Manager Series
15
<PAGE>

            PIMCO Innovation Fund (continued)

            Calendar Year Total Returns -- Class A

                                                             More Recent
                                                             Return
                                                             Information
                                                             ------------------
                                                             1/1/00-
                                                             9/30/00     21.31%

                                                             Highest and
                                                             Lowest Quarter
                                                             Returns
                                                             (for periods
                                                             shown in the bar
                                                             chart)
                                                             ------------------
                                                             Highest (10/1/99-
                                                             12/31/99)   80.12%
                                                             ------------------
                                                             Lowest (1/1/97-
                                                             3/31/97)   -12.56%

                                                [GRAPH]

                                             Annual Return

                                          95          46.33%
                                          96          23.60%
                                          97           9.03%
                                          98          79.41%
                                          99         139.40%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
<CAPTION>
                                                                          Fund Inception
                                                          1 Year  5 Years (12/22/94)(/3/)
            -----------------------------------------------------------------------------
         <S>                                              <C>     <C>     <C>
         Class A                                          126.24% 51.38%  51.01%
            -----------------------------------------------------------------------------
         Class B                                          133.51% 51.98%  51.65%
            -----------------------------------------------------------------------------
         Class C                                          137.44% 52.05%  51.68%
            -----------------------------------------------------------------------------
         S&P 500 Index(/1/)                                21.04% 28.56%  28.56%
            -----------------------------------------------------------------------------
         Lipper Science and Technology Fund Average(/2/)  135.19% 41.03%  41.03%
            -----------------------------------------------------------------------------
</TABLE>

            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Science and Technology Fund Average is a total
                return performance average of funds tracked by Lipper
                Analytical Services, Inc. that invest at least 65% of their
                assets in science and technology stocks. It does not take into
                account sales charges.
            (3) The Fund began operations on 12/22/94. Index comparisons begin
                on 12/31/94.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class A, B or C shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)

<TABLE>
<CAPTION>
                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
            ------------------------------------------------------------------------------------------------------
         <S>      <C>                                              <C>
         Class A  5.50%                                            1%(/1/)
            ------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
            ------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
            ------------------------------------------------------------------------------------------------------
</TABLE>

            (1) Imposed only in certain circumstances where Class A shares are
                purchased without a front-end sales charge at the time of
                purchase.
            (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 "Investment
                Options--Class A, B and C Shares--Contingent Deferred Sales
                Charges (CDSCs)--Class B Shares."
            (3) The CDSC on Class C shares is imposed only on shares redeemed
                in the first year.

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                               Distribution                    Total Annual
                      Advisory and/or Service    Other         Fund Operating
         Share Class  Fees     (12b-1) Fees(/1/) Expenses(/2/) Expenses
            -----------------------------------------------------------------
         <S>          <C>      <C>               <C>           <C>
         Class A      0.65%    0.25%             0.40%         1.30%
            -----------------------------------------------------------------
         Class B      0.65     1.00              0.40          2.05
            -----------------------------------------------------------------
         Class C      0.65     1.00              0.40          2.05
            -----------------------------------------------------------------
</TABLE>

            (1) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, Class B or Class C shareholders may, depending upon
                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.
            (2) Other Expenses reflects a 0.40% Administrative Fee paid by the
                class, which is subject to a reduction of 0.05% on average daily
                net assets attributable in the aggregate to the Fund's Class A,
                B and C shares in excess of $2.5 billion.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Fund with the costs
            of investing in other mutual funds. The Examples assume that you
            invest $10,000 in the noted class of shares for the time periods
            indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
                                                                                       Example: Assuming you do not
                  Example: Assuming you redeem your shares at the end of each period   redeem your shares
                  Year 1           Year 3           Year 5           Year 10           Year 1 Year 3 Year 5 Year 10
            -------------------------------------------------------------------------------------------------------
         <S>      <C>              <C>              <C>              <C>               <C>    <C>    <C>    <C>
         Class A  $675             $939             $1,224           $2,032            $675   $939   $1,224 $2,032
            -------------------------------------------------------------------------------------------------------
         Class B   708              943              1,303            2,091             208    643    1,103  2,091
            -------------------------------------------------------------------------------------------------------
         Class C   308              643              1,103            2,379             208    643    1,103  2,379
            -------------------------------------------------------------------------------------------------------
</TABLE>
                                                                   Prospectus
                                                                              16
<PAGE>

            PIMCO International Fund

--------------------------------------------------------------------------------
Principal     Investment           Fund Focus             Approximate
Investments   Objective            Common stocks of       Capitalization Range
and           Seeks capital        foreign (non-U.S.)     More than $500
Strategies    appreciation         issuers                million
              through
              investment in        Approximate Number     Dividend Frequency
              an                   of Holdings            At least annually
              international        200-250
              portfolio;
              income is an
              incidental
              consideration

              Fund
              Category
              International
              Stocks

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in an international portfolio
            of common stocks, which may or may not pay dividends. The Fund
            normally invests in securities traded principally in developed
            foreign securities markets, but may also invest up to 30% of its
            assets in developing or "emerging" markets. The Fund has no
            prescribed limits on geographic asset distribution and may invest
            in any foreign securities market in the world. The Fund may also
            invest in securities of foreign issuers traded on U.S. securities
            markets, but will normally not invest in U.S. issuers. The Fund
            invests most of its assets in foreign securities which trade in
            currencies other than the U.S. dollar and may invest directly in
            foreign currencies.

             The portfolio manager uses a "top down" investment approach. He
            first determines regional and country weightings for the Fund by
            considering such factors as the condition and growth potential of
            the various economies and securities markets, currency and
            taxation considerations and other financial, social, national and
            political factors. The Sub-Adviser's country specialists then
            select individual stocks to fill out the desired country
            weightings. In selecting stocks, the specialists analyze a broad
            range of company fundamentals, such as price-to-earnings, price-
            to-book value and price-to-cash flow ratios (value factors),
            earnings, dividend and profit growth (growth factors) and balance
            sheet strength and return on assets (quality factors). The
            portfolio manager sells stocks in order to adjust or rebalance the
            Fund's regional and country weightings or to replace companies
            with weakening fundamentals.

             The Fund may utilize foreign currency exchange contracts and
            derivative instruments (such as stock index futures contracts)
            primarily for risk management or hedging purposes. The Fund may
            also invest in equity securities other than common stocks (such as
            preferred stocks and convertible securities) and may invest up to
            10% of its assets in other investment companies. In response to
            unfavorable market and other conditions, the Fund may make
            temporary investments of some or all of its assets in foreign and
            domestic fixed income securities and in equity securities of U.S.
            issuers. This would be inconsistent with the Fund's investment
            objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>
           <S>                 <C>                     <C>
           . Foreign           .Value Securities Risk  .Focused Investment Risk
             Investment Risk   .Growth Securities Risk .Leveraging Risk
           . Emerging Markets  .Smaller Companies Risk .Credit Risk
             Risk              .Liquidity Risk         .Management Risk
           . Currency Risk     .Derivatives Risk
           . Market Risk
           . Issuer Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Class C shares, but the
            returns do not reflect the impact of sales charges (loads). If
            they did, the returns would be lower than those shown. Unlike the
            bar chart, performance for Class A, B and C shares in the Average
            Annual Total Returns table reflects the impact of sales charges.
            For periods prior to the inception of Class A shares (2/1/91) and
            Class B shares (5/22/95), performance information shown in the
            Average Annual Total Returns table for those classes is based on
            the performance of the Fund's Class C shares. The prior Class C
            performance has been adjusted to reflect the actual sales charges,
            distribution and/or service (12b-1) fees, administrative fees and
            other expenses paid by Class A and B shares. The Fund had
            different sub-advisers during the periods prior to November 15,
            1994 and would not necessarily have achieved the performance
            results shown on the next page under its current investment
            management arrangements. Past performance is no guarantee of
            future results.

  PIMCO Funds: Multi-Manager Series
17
<PAGE>

            PIMCO International Fund (continued)

            Calendar Year Total Returns -- Class C

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00-
                                                            9/30/00      -18.87%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (10/1/99-
                                                            12/31/99)     21.58%
                                                            --------------------
                                                            Lowest (7/1/98-
                                                            9/30/98)     -22.16%

                                    [GRAPH]

                            1990           -15.50%
                            1991            19.92%
                            1992            -5.84%
                            1993            33.47%
                            1994            -8.16%
                            1995             5.79%
                            1996             5.76%
                            1997             1.85%
                            1998             8.27%
                            1999            27.00%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                            Fund Inception
                                    1 Year 5 Years 10 Years (8/25/86)(/3/)
            --------------------------------------------------------------
         <S>                        <C>    <C>     <C>      <C>
         Class A                    20.59%  8.96%   6.43%    8.17%
            --------------------------------------------------------------
         Class B                    21.97%  9.13%   6.49%    8.21%
            --------------------------------------------------------------
         Class C                    26.00%  9.40%   6.24%    7.83%
            --------------------------------------------------------------
         MSCI EAFE Index            27.31% 13.15%   7.34%   10.35%
            --------------------------------------------------------------
         Lipper International Fund
          Average(/2/)              40.76% 15.13%  10.28%   11.59%
            --------------------------------------------------------------
</TABLE>

            (1) The Morgan Stanley Capital International EAFE (Europe,
                Australasia, Far East) ("MSCI EAFE") Index is a widely
                recognized, unmanaged index of issuers in countries of Europe,
                Australia and Asia. It is not possible to invest directly in
                the index.
            (2) The Lipper International Fund Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest their assets in securities whose
                primary trading markets are outside of the United States. It
                does not take into account sales charges.
            (3) The Fund began operations on 8/25/86. Index comparisons begin
                on 8/31/86.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class A, B or C shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)

<TABLE>
<CAPTION>
                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
            ------------------------------------------------------------------------------------------------------
         <S>      <C>                                              <C>
         Class A  5.50%                                            1%(/1/)
            ------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
            ------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
            ------------------------------------------------------------------------------------------------------
</TABLE>

            (1) Imposed only in certain circumstances where Class A shares are
                purchased without a front-end sales charge at the time of
                purchase.
            (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 "Investment
                Options--Class A, B and C Shares--Contingent Deferred Sales
                Charges (CDSCs)--Class B Shares."
            (3) The CDSC on Class C shares is imposed only on shares redeemed
                in the first year.

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                               Distribution                     Total Annual
                      Advisory and/or Service     Other         Fund Operating
         Share Class  Fees     (12b-1) Fees (/1/) Expenses(/2/) Expenses
            ------------------------------------------------------------------
         <S>          <C>      <C>                <C>           <C>
         Class A      0.55%    0.25%              0.72%         1.52%
            ------------------------------------------------------------------
         Class B      0.55     1.00               0.73          2.28
            ------------------------------------------------------------------
         Class C      0.55     1.00               0.73          2.28
            ------------------------------------------------------------------
</TABLE>

            (1) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, Class B or Class C shareholders may, depending upon
                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.
            (2) Other Expenses reflects a 0.65% Administrative Fee paid by the
                class, which is subject to a reduction of 0.05% on average daily
                net assets attributable in the aggregate to the Fund's Class A,
                B and C shares in excess of $2.5 billion, and 0.07% in other
                expenses attributable to Class A shares during the most recent
                fiscal year and 0.08% in other expenses attributable to Class B
                and Class C shares during the most recent fiscal year.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Fund with the costs
            of investing in other mutual funds. The Examples assume that you
            invest $10,000 in the noted class of shares for the time periods
            indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
                      Example: Assuming you redeem your shares at the
                      end of each period                               Example: Assuming you do not redeem your shares
         Share Class  Year 1      Year 3      Year 5      Year 10      Year 1      Year 3      Year 5      Year 10
            ----------------------------------------------------------------------------------------------------------
         <S>          <C>         <C>         <C>         <C>          <C>         <C>         <C>         <C>
         Class A      $696        $1,004      $1,333      $2,263       $696        $1,004      $1,333      $2,263
            ----------------------------------------------------------------------------------------------------------
         Class B       731         1,012       1,420       2,329        231           712       1,220       2,329
            ----------------------------------------------------------------------------------------------------------
         Class C       331           712       1,220       2,615        231           712       1,220       2,615
            ----------------------------------------------------------------------------------------------------------
</TABLE>
                                                                   Prospectus 18
<PAGE>

            PIMCO Mid-Cap Fund

--------------------------------------------------------------------------------
Principal     Investment           Fund Focus             Approximate
Investments   Objective            Medium                 Capitalization
and           Seeks growth of      capitalization         Range
Strategies    capital              common stocks          More than $500
                                                          million (excluding
              Fund                 Approximate Number     the largest 200
              Category             of Holdings            companies)
              Blend Stocks         60-100
                                                          Dividend Frequency
                                                          At least annually

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with medium market capitalizations that have improving
            fundamentals (based on growth criteria) and whose stock is
            reasonably valued by the market (based on value criteria).

             In making investment decisions for the Fund, the portfolio
            management team considers companies in the U.S. market with market
            capitalizations of more than $500 million, but excluding the 200
            largest capitalization companies. The team screens the stocks in
            this universe for a series of growth criteria, such as dividend
            growth, earnings growth, relative growth of earnings over time
            (earnings momentum) and the company's history of meeting earnings
            targets (earnings surprise), and also value criteria, such as
            price-to-earnings, price-to-book and price-to-cash flow ratios.
            The team then selects individual stocks by subjecting the top 10%
            of the stocks in the screened universe to a rigorous analysis of
            company factors, such as strength of management, competitive
            industry position, and business prospects, and financial statement
            data, such as earnings, cash flows and profitability. The team may
            interview company management in making investment decisions. The
            Fund's capitalization criteria applies at the time of investment.

             The portfolio management team rescreens the universe frequently
            and seeks to consistently achieve a favorable balance of growth
            and value characteristics for the Fund. The team looks to sell a
            stock when it falls below the median ranking, has negative
            earnings surprises, or shows poor price performance relative to
            all stocks in the Fund's capitalization range or to companies in
            the same business sector. A stock may also be sold if its
            weighting in the portfolio becomes excessive (normally above 2% of
            the Fund's investments).

             The Fund intends to be fully invested in common stock (aside from
            certain cash management practices) and will not make defensive
            investments in response to unfavorable market and other
            conditions.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>
           <S>             <C>                      <C>
           .  Market Risk  . Growth Securities Risk . Focused Investment Risk
           .  Issuer Risk  . Smaller Company Risk   . Credit Risk
           .  Value        . Liquidity Risk         . Management Risk
              Securities
              Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Class A shares, but the
            returns do not reflect the impact of sales charges (loads). If
            they did, the returns would be lower than those shown. Unlike the
            bar chart, performance for Class A, B and C shares in the Average
            Annual Total Returns table reflects the impact of sales charges.
            For periods prior to the inception of Class A, B and C shares
            (1/13/97), performance information shown in the bar chart and
            tables for those classes is based on the performance of the Fund's
            Institutional Class shares, which are offered in a different
            prospectus. The prior Institutional Class performance has been
            adjusted to reflect the actual sales charges (in the Average
            Annual Total Returns table only), distribution and/or service
            (12b-1) fees, administrative fees and other expenses paid by Class
            A, B and C shares. Past performance is no guarantee of future
            results.

  PIMCO Funds: Multi-Manager Series
19
<PAGE>

            PIMCO Mid-Cap Fund (continued)

            Calendar Year Total Returns -- Class A

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00-
                                                            9/30/00       27.80%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (10/1/99-
                                                            12/31/99)     22.92%
                                                            --------------------
                                                            Lowest (7/1/98-
                                                            9/30/98)     -14.50%

                                    [GRAPH]

                             1992           8.75%
                             1993          15.32%
                             1994          -2.75%
                             1995          36.76%
                             1996          22.87%
                             1997          33.62%
                             1998           7.46%
                             1999          12.54%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
<CAPTION>
                                                                Fund Inception
                                                 1 Year 5 Years (8/26/91)(/3/)
            ------------------------------------------------------------------
         <S>                                     <C>    <C>     <C>
         Class A                                  6.35% 20.74%  16.33%
            ------------------------------------------------------------------
         Class B                                  6.68% 21.03%  16.39%
            ------------------------------------------------------------------
         Class C                                 10.68% 21.22%  16.25%
            ------------------------------------------------------------------
         Russell Mid-Cap Index(/1/)              18.23% 21.85%  17.31%
            ------------------------------------------------------------------
         Lipper Mid-Cap Core Funds Average(/2/)  29.16% 21.12%  16.55%
            ------------------------------------------------------------------
</TABLE>

            (1) The Russell Mid-Cap Index is an unmanaged index of middle
                capitalization U.S. stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Mid-Cap Core Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest primarily in companies with market
                capitalizations of less than 300% of the dollar-weighted
                median market capitalization of the S&P Mid-Cap 400 Index. It
                does not take into account sales charges.
            (3) The Fund began operations on 8/26/91. Index comparisons begin
                on 8/31/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class A, B or C shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)

<TABLE>
<CAPTION>
                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
            ------------------------------------------------------------------------------------------------------
         <S>      <C>                                              <C>
         Class A  5.50%                                            1%(/1/)
            ------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
            ------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
            ------------------------------------------------------------------------------------------------------
</TABLE>

            (1) Imposed only in certain circumstances where Class A shares are
                purchased without a front-end sales charge at the time of
                purchase.
            (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 "Investment
                Options--Class A, B and C Shares--Contingent Deferred Sales
                Charges (CDSCs)--Class B Shares."
            (3) The CDSC on Class C shares is imposed only on shares redeemed
                in the first year.

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                               Distribution                    Total Annual
                      Advisory and/or Service    Other         Fund Operating
         Share Class  Fees     (12b-1) Fees(/1/) Expenses(/2/) Expenses
            -----------------------------------------------------------------
         <S>          <C>      <C>               <C>           <C>
         Class A      0.45%    0.25%             0.41%         1.11%
            -----------------------------------------------------------------
         Class B      0.45     1.00              0.41          1.86
            -----------------------------------------------------------------
         Class C      0.45     1.00              0.41          1.86
            -----------------------------------------------------------------
</TABLE>

            (1) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, Class B or Class C shareholders may, depending upon
                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.
            (2) Other Expenses reflects a 0.40% Administrative Fee paid by the
                class, which is subject to a reduction of 0.05% on average daily
                net assets attributable in the aggregate to the Fund's Class A,
                B and C shares in excess of $2.5 billion, and 0.01% in other
                expenses attributable to that class during the most recent
                fiscal year.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Fund with the costs
            of investing in other mutual funds. The Examples assume that you
            invest $10,000 in the noted class of shares for the time periods
            indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
                                                                                           Example: Assuming you do not
                      Example: Assuming you redeem your shares at the end of each period   redeem your shares
         Share Class  Year 1           Year 3           Year 5           Year 10           Year 1 Year 3 Year 5 Year 10
            -----------------------------------------------------------------------------------------------------------
         <S>          <C>              <C>              <C>              <C>               <C>    <C>    <C>    <C>
         Class A      $657             $883             $1,128           $1,827            $657   $883   $1,128 $1,827
            -----------------------------------------------------------------------------------------------------------
         Class B       689              885              1,206            1,887             189    585    1,006  1,887
            -----------------------------------------------------------------------------------------------------------
         Class C       289              585              1,006            2,180             189    585    1,006  2,180
            -----------------------------------------------------------------------------------------------------------
</TABLE>
                                                                   Prospectus
                                                                              20
<PAGE>

            PIMCO Opportunity Fund

--------------------------------------------------------------------------------
Principal     Investment            Fund                Approximate
Investments   Objective             Focus               Capitalization Range
and           Seeks capital         Smaller             Between $100
Strategies    appreciation;         capitalization      million and $2
              no                    common stocks       billion
              consideration
              is given to           Approximate Number  Dividend
              income                of Holdings         Frequency
                                    60-100              At least
              Fund                                      annually
              Category
              Growth Stocks




            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of "growth"
            companies with market capitalizations of between $100 million and
            $2 billion at the time of investment.

             The portfolio manager selects stocks for the Fund using a
            "growth" style. The portfolio manager seeks to identify companies
            with well-defined "wealth creating" characteristics, including
            superior earnings growth (relative to companies in the same
            industry or the market as a whole), high profitability and
            consistent, predictable earnings. In addition, through fundamental
            research, the portfolio manager seeks to identify companies that
            are gaining market share, have superior management and possess a
            sustainable competitive advantage, such as superior or innovative
            products, personnel and distribution systems. The Fund looks to
            sell a stock when the portfolio manager believes that its
            earnings, market sentiment or relative performance are
            disappointing or if an alternative investment is more attractive.

             The Fund may also invest to a limited degree in other kinds of
            equity securities, including preferred stocks and convertible
            securities. The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). The Fund may invest a substantial
            portion of its assets in the securities of smaller capitalization
            companies and securities issued in initial public offerings
            (IPOs). The Fund has in the past invested a significant portion of
            its assets in technology or technology-related companies, although
            there is no assurance that it will continue to do so in the
            future.

             In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              . Market Risk            . IPO Risk           . Technology Related
              . Issuer Risk            . Liquidity Risk       Risk
              . Growth Securities Risk . Foreign Investment . Focused Investment
              . Smaller Company Risk     Risk                 Risk
                                       . Currency Risk      . Credit Risk
                                                            . Management Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Class C shares, but the
            returns do not reflect the impact of sales charges (loads). If
            they did, the returns would be lower than those shown. Unlike the
            bar chart, performance for Class A, B and C shares in the Average
            Annual Total Returns table reflects the impact of sales charges.
            For periods prior to the inception of Class A shares (12/17/90)
            and Class B shares (4/1/99), performance information shown in the
            Average Annual Total Returns table for those classes is based on
            the performance of the Fund's Class C shares. The prior Class C
            performance has been adjusted to reflect the actual sales charges,
            distribution and/or service (12b-1) fees, administrative fees and
            other expenses paid by Class A and B shares. Prior to March 6,
            1999, the Fund had a different sub-adviser and would not
            necessarily have achieved the performance results shown on the
            next page under its current investment management arrangements.
            Past performance is no guarantee of future results.

  PIMCO Funds: Multi-Manager Series
21
<PAGE>

            PIMCO Opportunity Fund (continued)

            Calendar Year Total Returns -- Class C

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00-9/30/00 5.06%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (10/01/99-
                                                            12/31/99)     45.70%
                                                            --------------------
                                                            Lowest (7/1/98-
                                                            9/30/98)     -25.78%

                                    [GRAPH]

                            1990            -7.34%
                            1991            68.08%
                            1992            28.46%
                            1993            36.16%
                            1994            -4.74%
                            1995            41.43%
                            1996            11.54%
                            1997            -4.75%
                            1998             1.29%
                            1999            63.99%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
<CAPTION>
                                                                 Fund Inception
                                   1 Year   5 Years   10 Years   (2/24/84)(/3/)
            -------------------------------------------------------------------
         <S>                       <C>      <C>       <C>        <C>
         Class A                   55.98%    19.60%   20.73%     19.37%
            -------------------------------------------------------------------
         Class B                   58.95%    19.90%   20.80%     19.40%
            -------------------------------------------------------------------
         Class C                   62.99%    20.09%   20.55%     18.93%
            -------------------------------------------------------------------
         Russell 2000 Index(/1/)   21.25%    16.69%   13.40%     12.49%
            -------------------------------------------------------------------
         Lipper Small-Cap Growth
          Funds Average(/2/)       61.78%    22.83%   18.12%     15.00%
            -------------------------------------------------------------------
</TABLE>

            (1) The Russell 2000 Index is a capitalization weighted broad
                based index of 2,000 small capitalization U.S. stocks. It is
                not possible to invest directly in the index.
            (2) The Lipper Small-Cap Growth Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest primarily in companies with market
                capitalizations of less than 250% of the dollar-weighted
                median market capitalization of the S&P Small-Cap 600 Index.
                It does not take into account sales charges.
            (3) The Fund began operations on 2/24/84. Index comparisons begin
                on 2/29/84.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class A, B or C shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)

<TABLE>
<CAPTION>
                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
            ------------------------------------------------------------------------------------------------------
         <S>      <C>                                              <C>
         Class A  5.50%                                            1%(/1/)
            ------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
            ------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
            ------------------------------------------------------------------------------------------------------
</TABLE>

            (1) Imposed only in certain circumstances where Class A shares are
                purchased without a front-end sales charge at the time of
                purchase.
            (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 "Investment
                Options--Class A, B and C Shares--Contingent Deferred Sales
                Charges (CDSCs)--Class B Shares."
            (3) The CDSC on Class C shares is imposed only on shares redeemed
                in the first year.

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                               Distribution                    Total Annual
                      Advisory and/or Service    Other         Fund Operating
         Share Class  Fees     (12b-1) Fees(/1/) Expenses(/2/) Expenses
            -----------------------------------------------------------------
         <S>          <C>      <C>               <C>           <C>
         Class A      0.65%    0.25%             0.41%         1.31%
            -----------------------------------------------------------------
         Class B      0.65     1.00              0.41          2.06
            -----------------------------------------------------------------
         Class C      0.65     1.00              0.41          2.06
            -----------------------------------------------------------------
</TABLE>

            (1) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, Class B or Class C shareholders may, depending upon
                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.
            (2) Other Expenses reflects a 0.40% Administrative Fee paid by the
                class, which is subject to a reduction of 0.05% on average daily
                net assets attributable in the aggregate to the Fund's Class A,
                B and C shares in excess of $2.5 billion, and 0.01% in other
                expenses attributable to that class during the most recent
                fiscal year.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Fund with the costs
            of investing in other mutual funds. The Examples assume that you
            invest $10,000 in the noted class of shares for the time periods
            indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
                                                                                           Example: Assuming you do not
                      Example: Assuming you redeem your shares at the end of each period   redeem your shares
         Share Class  Year 1           Year 3           Year 5           Year 10           Year 1 Year 3 Year 5 Year 10
            -----------------------------------------------------------------------------------------------------------
         <S>          <C>              <C>              <C>              <C>               <C>    <C>    <C>    <C>
         Class A      $676             $942             $1,229           $2,042            $676   $942   $1,229 $2,042
            -----------------------------------------------------------------------------------------------------------
         Class B       709              946              1,308            2,102             209    646    1,108  2,102
            -----------------------------------------------------------------------------------------------------------
         Class C       309              646              1,108            2,390             209    646    1,108  2,390
            -----------------------------------------------------------------------------------------------------------
</TABLE>
                                                                   Prospectus
                                                                              22
<PAGE>

            PIMCO Renaissance Fund

--------------------------------------------------------------------------------
Principal     Investment           Fund Focus             Approximate
Investments   Objective            Undervalued stocks     Capitalization Range
and           Seeks long-term      with improving         All capitalizations
Strategies    growth of            business
              capital and          fundamentals           Dividend Frequency
              income                                      At least annually
                                   Approximate Number
              Fund                 of Holdings
              Category             50-80
              Value Stocks

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with below-average valuations whose business fundamentals are
            expected to improve. Although the Fund typically invests in
            companies with market capitalizations of $1 billion to $10 billion
            at the time of investment, it may invest in companies in any
            capitalization range. To achieve income, the Fund invests a
            portion of its assets in income-producing (e.g., dividend-paying)
            stocks.

             The portfolio manager selects stocks for the Fund using a "value"
            style. The portfolio manager invests primarily in common stocks of
            companies having below-average valuations whose business
            fundamentals, such as market share, strength of management and
            competitive position, are expected to improve. The portfolio
            manager determines valuation based on characteristics such as
            price-to-earnings, price-to-book, and price-to-cash flow ratios.
            The portfolio manager analyzes stocks and seeks to identify the
            key drivers of financial results and catalysts for change, such as
            new management and new or improved products, that indicate a
            company may demonstrate improving fundamentals in the future. The
            portfolio manager looks to sell a stock when he believes that the
            company's business fundamentals are weakening or when the stock's
            valuation has become excessive.

             The Fund may also invest to a limited degree in other kinds of
            equity securities, including preferred stocks and convertible
            securities. The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs).

             In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>
           <S>                      <C>                        <C>
           . Market Risk            . Foreign Investment Risk  . Credit Risk
           . Issuer Risk            . Currency Risk            . Management Risk
           . Value Securities Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Class C shares, but the
            returns do not reflect the impact of sales charges (loads). If
            they did, the returns would be lower than those shown. Unlike the
            bar chart, performance for Class A, B and C shares in the Average
            Annual Total Returns table reflects the impact of sales charges.
            For periods prior to the inception of Class A shares (2/1/91) and
            Class B shares (5/22/95), performance information shown in the
            Average Annual Total Returns table for those classes is based on
            the performance of the Fund's Class C shares. The prior Class C
            performance has been adjusted to reflect the actual sales charges,
            distribution and/or service (12b-1) fees, administrative fees and
            other expenses paid by Class A and B shares. Prior to May 7, 1999,
            the Fund had a different sub-adviser and would not necessarily
            have achieved the performance results shown on the next page under
            its current investment management arrangements. Past performance
            is no guarantee of future results.

  PIMCO Funds: Multi-Manager Series
23
<PAGE>

            PIMCO Renaissance Fund (continued)

            Calendar Year Total Returns -- Class C

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00-
                                                            9/30/00       17.70%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (10/1/98-
                                                            12/31/98)     18.37%
                                                            --------------------
                                                            Lowest (7/1/98-
                                                            9/30/98)     -16.77%

                                    [GRAPH]

                            1990           -15.46%
                            1991            33.24%
                            1992             7.78%
                            1993            21.23%
                            1994            -5.05%
                            1995            27.61%
                            1996            24.40%
                            1997            34.90%
                            1998            10.72%
                            1999             9.02%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
<CAPTION>
                                                                Fund Inception
                                       1 Year  5 Years 10 Years (4/18/88)(/3/)
            ------------------------------------------------------------------
         <S>                           <C>     <C>     <C>      <C>
         Class A                        3.79%  20.45%  13.92%   13.45%
            ------------------------------------------------------------------
         Class B                        4.66%  20.70%  13.97%   13.49%
            ------------------------------------------------------------------
         Class C                        8.16%  20.92%  13.70%   13.15%
            ------------------------------------------------------------------
         Russell Mid-Cap Value
          Index(/1/)                   - 0.10% 18.00%  13.81%   14.53%
            ------------------------------------------------------------------
         Lipper Multi-Cap Value Funds
          Average(/2/)                  6.69%  18.32%  13.11%   13.67%
            ------------------------------------------------------------------
</TABLE>
            (1) The Russell Mid-Cap Value Index is an unmanaged index that
                measures the performance of medium capitalization companies in
                the Russell 1000 Index with lower price-to-book ratios and
                lower forecasted growth values. It is not possible to invest
                directly in the index. The Russell Mid-Cap Value Index
                replaced the Russell 1000 Value Index (an unmanaged index that
                measures the performance of companies in the Russell 1000
                Index considered to have less than average growth orientation)
                and the S&P 500 Index (an unmanaged index of large
                capitalization common stocks) as the Fund's comparative index
                because PIMCO Advisors believes the Russell Mid-Cap Value
                Index is more representative of the Fund's investment
                strategies. For periods ended December 31, 1999, the 1 Year, 5
                Years, 10 Years and Fund Inception average annual total
                returns of the Russell 1000 Value Index were 7.34%, 23.08%,
                15.60% and 15.38%, respectively, and of the S&P 500 Index were
                21.04%, 28.56%, 18.21% and 19.06%, respectively.
            (2) The Lipper Multi-Cap Value Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest in companies with a variety of
                capitalization ranges without concentrating in any one market
                capitalization range over an extended period of time.
            (3) The Fund began operations on 4/18/88. Index comparisons begin
                on 4/30/88.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class A, B or C shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)

<TABLE>
<CAPTION>
                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
            ------------------------------------------------------------------------------------------------------
         <S>      <C>                                              <C>
         Class A  5.50%                                            1%(/1/)
            ------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
            ------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
            ------------------------------------------------------------------------------------------------------
</TABLE>
            (1) Imposed only in certain circumstances where Class A shares are
                purchased without a front-end sales charge at the time of
                purchase.
            (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 "Investment
                Options--Class A, B and C Shares--Contingent Deferred Sales
                Charges (CDSCs)--Class B Shares."
            (3) The CDSC on Class C shares is imposed only on shares redeemed
                in the first year.

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)
<TABLE>
<CAPTION>
                               Distribution                    Total Annual
                      Advisory and/or Service    Other         Fund Operating
         Share Class  Fees     (12b-1) Fees(/1/) Expenses(/2/) Expenses
            -----------------------------------------------------------------
         <S>          <C>      <C>               <C>           <C>
         Class A      0.60%    0.25%             0.40%         1.25%
            -----------------------------------------------------------------
         Class B      0.60     1.00              0.40          2.00
            -----------------------------------------------------------------
         Class C      0.60     1.00              0.40          2.00
            -----------------------------------------------------------------
</TABLE>
            (1) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, Class B or Class C shareholders may, depending upon
                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.
            (2) Other Expenses reflects a 0.40% Administrative Fee paid by the
                class, which is subject to a reduction of 0.05% on average daily
                net assets attributable in the aggregate to the Fund's Class A,
                B and C shares in excess of $2.5 billion.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Fund with the costs
            of investing in other mutual funds. The Examples assume that you
            invest $10,000 in the noted class of shares for the time periods
            indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
                                                                                           Example: Assuming you do not
                      Example: Assuming you redeem your shares at the end of each period   redeem your shares
         Share Class  Year 1           Year 3           Year 5           Year 10           Year 1 Year 3 Year 5 Year 10
            -----------------------------------------------------------------------------------------------------------
         <S>          <C>              <C>              <C>              <C>               <C>    <C>    <C>    <C>
         Class A      $670             $925             $1,199           $1,978            $670   $925   $1,199 $1,978
            -----------------------------------------------------------------------------------------------------------
         Class B       703              927              1,278            2,038             203    627    1,078  2,038
            -----------------------------------------------------------------------------------------------------------
         Class C       303              627              1,078            2,327             203    627    1,078  2,327
            -----------------------------------------------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 24
<PAGE>

            PIMCO Select Growth Fund

--------------------------------------------------------------------------------
Principal     Investment            Fund Focus          Approximate
Investments   Objective             Larger              Capitalization Range
and           Seeks long-term       capitalization      At least $10
Strategies    growth of             common stocks       billion
              capital; income
              is an incidental      Approximate Number  Dividend Frequency
              consideration         of Holdings         At least annually
                                    15-25
              Fund Category
              Growth Stocks


            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of "growth"
            companies with market capitalizations of at least $10 billion at
            the time of investment. The Fund normally invests in the
            securities of 15 to 25 issuers.

             The portfolio manager selects stocks for the Fund using a
            "growth" style. The portfolio manager seeks to identify companies
            with well-defined "wealth creating" characteristics, including
            superior earnings growth (relative to companies in the same
            industry or the market as a whole), high profitability and
            consistent, predictable earnings. In addition, through fundamental
            research, the portfolio manager seeks to identify companies that
            are gaining market share, have superior management and possess a
            sustainable competitive advantage, such as superior or innovative
            products, personnel and distribution systems. The Fund looks to
            sell a stock when the portfolio manager believes that its
            earnings, market sentiment or relative performance are
            disappointing or if an alternative investment is more attractive.
            The Fund is "non-diversified," which means that it invests in a
            relatively small number of issuers.

             The Fund may also invest to a limited degree in other kinds of
            equity securities, including preferred stocks and convertible
            securities. The Fund may invest up to 25% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). The Fund has in the past invested a
            significant portion of its assets in technology or technology-
            related companies, although there is no assurance that it will
            continue to do so in the future. In response to unfavorable market
            and other conditions, the Fund may make temporary investments of
            some or all of its assets in high-quality fixed income securities.
            This would be inconsistent with the Fund's investment objective
            and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

            . Market Risk          . Focused Investment Risk   . Currency Risk
            . Issuer Risk          . Growth Securities Risk    . Credit Risk
            . Technology Related   . Foreign Investment Risk   . Management Risk
              Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance
Information The top of the next page shows summary performance information for
            the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Institutional Class shares,
            which are offered in a different prospectus. This is because the
            Fund did not offer Class A, B or C shares during the periods
            shown. Although Institutional Class and Class A, B and C shares
            would have similar annual returns (because all the Fund's shares
            represent interests in the same portfolio of securities),
            Institutional Class performance would be higher than Class A, B or
            C performance because of the lower expenses and no sales charges
            (loads) paid by Institutional Class shares. The Average Annual
            Total Returns table also shows estimated historical performance
            for Class A, B and C shares based on the performance of the Fund's
            Institutional Class shares, adjusted to reflect the actual sales
            charges, distribution and/or service (12b-1) fees, administrative
            fees and other expenses paid by Class A, B and C shares. The
            performance information on the next page for periods prior to
            April 1, 2000 reflects the Fund's advisory fee rate in effect
            prior to that date (0.57% per annum); these results would have
            been lower had the Fund's current advisory fee rate (0.60% per
            annum) then been in effect. Prior to July 1, 1999, the Fund had a
            different sub-adviser and would not necessarily have achieved the
            performance results shown on the next page under its current
            investment management arrangements. In addition, the Fund changed
            its investment objective and policies on April 1, 2000; the
            performance results shown on the next page would not necessarily
            have been achieved had the Fund's current objective and policies
            then been in effect. Past performance is no guarantee of future
            results.

25 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Select Growth Fund (continued)

            Calendar Year Total Returns -- Institutional Class

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00-
                                                            9/30/00       16.44%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (10/01/98-
                                                            12/31/98)     24.90%
                                                            --------------------
                                                            Lowest (7/1/98-
                                                            9/30/98)     -11.38%

                                    [GRAPH]

                                 Annual Return

                           1995              27.96%
                           1996              17.95%
                           1997              25.32%
                           1998              41.06%
                           1999              24.27%


                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
<CAPTION>
                                                                 Fund Inception
                                          1 Year     5 Years     (12/28/94)(/3/)
            --------------------------------------------------------------------
         <S>                              <C>        <C>         <C>
         Institutional Class              24.27%     27.09%      27.06%
            --------------------------------------------------------------------
         Class A                          16.97%     25.17%      25.14%
            --------------------------------------------------------------------
         Class B                          17.86%     25.50%      25.55%
            --------------------------------------------------------------------
         Class C                          21.86%     25.66%      25.63%
            --------------------------------------------------------------------
         S&P 500 Index(/1/)               21.04%     28.56%      28.56%
            --------------------------------------------------------------------
         Lipper Large-Cap Growth Funds
          Average(/2/)                    40.54%     29.41%      29.41%
            --------------------------------------------------------------------
</TABLE>
            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Large-Cap Growth Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest primarily in companies with market
                capitalizations of greater than 300% of the dollar-weighted
                median market capitalization of the S&P Mid-Cap 400 Index. It
                does not take into account sales charges.
            (3) The Fund began operations on 12/28/94. Index comparisons begin
                on 12/31/94.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class A, B or C shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)

<TABLE>
<CAPTION>
                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
            ------------------------------------------------------------------------------------------------------
         <S>      <C>                                              <C>
         Class A  5.50%                                            1%(/1/)
            ------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
            ------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
            ------------------------------------------------------------------------------------------------------
</TABLE>
            (1) Imposed only in certain circumstances where Class A shares are
                purchased without a front-end sales charge at the time of
                purchase.
            (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 "Investment
                Options--Class A, B and C Shares--Contingent Deferred Sales
                Charges (CDSCs)--Class B Shares."
            (3) The CDSC on Class C shares is imposed only on shares redeemed
                in the first year.

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                                Distribution                    Total Annual
                      Advisory  and/or Service    Other         Fund Operating
         Share Class  Fees(/1/) (12b-1) Fees(/2/) Expenses(/3/) Expenses
            ------------------------------------------------------------------
         <S>          <C>       <C>               <C>           <C>
         Class A      0.60%     0.25%             0.40%         1.25%
            ------------------------------------------------------------------
         Class B      0.60      1.00              0.40          2.00
            ------------------------------------------------------------------
         Class C      0.60      1.00              0.40          2.00
            ------------------------------------------------------------------
</TABLE>

            (1) On April 1, 2000, the Fund's advisory fee rate increased by
                0.03%, to 0.60% per annum.
            (2) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, Class B or Class C shareholders may, depending upon
                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.
            (3) Other Expenses reflects a 0.40% Administrative Fee paid by the
                class, which is subject to a reduction of 0.05% on average daily
                net assets attributable in the aggregate to the Fund's Class A,
                B and C shares in excess of $2.5 billion.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Fund with the costs
            of investing in other mutual funds. The Examples assume that you
            invest $10,000 in the noted class of shares for the time periods
            indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
                                                                                           Example: Assuming you do not
                      Example: Assuming you redeem your shares at the end of each period   redeem your shares
         Share Class  Year 1           Year 3           Year 5           Year 10           Year 1 Year 3 Year 5 Year 10
            -----------------------------------------------------------------------------------------------------------
         <S>          <C>              <C>              <C>              <C>               <C>    <C>    <C>    <C>
         Class A      $670             $925             $1,199           $1,978            $670   $925   $1,199 $1,978
            -----------------------------------------------------------------------------------------------------------
         Class B       703              927              1,278            2,038             203    627    1,078  2,038
            -----------------------------------------------------------------------------------------------------------
         Class C       303              627              1,078            2,327             203    627    1,078  2,327
            -----------------------------------------------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 26
<PAGE>

            PIMCO Allianz Select International Fund

--------------------------------------------------------------------------------
Principal     Investment           Fund Focus             Approximate
Investments   Objective            Common stocks          Capitalization
and           Seeks capital        of non-U.S.            Range
Strategies    appreciation         issuers                More than $1
                                                          billion
              Fund Category        Approximate Number
              International        of Holdings            Dividend
              Stocks               30-60                  Frequency
                                                          At least
                                                          annually

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in an international portfolio
            of common stocks and other equity securities of companies located
            outside of the United States. Although the Fund normally invests
            in issuers from at least five different countries, it may at times
            invest in fewer than five countries, or even a single country. The
            Fund typically invests in approximately 30 to 60 stocks. Although
            the Fund invests primarily in developed market countries, it may
            also invest in developing, or "emerging," markets. The Fund has no
            other limits on geographic asset distribution and may invest in
            any foreign securities market in the world. The Fund may also
            invest in securities of foreign issuers traded on U.S. securities
            markets, but will normally not invest in U.S. issuers. The Fund
            invests most of its assets in foreign securities which trade in
            currencies other than the U.S. dollar and may invest directly in
            foreign currencies.

             The portfolio manager selects securities for the Fund using a
            research-driven "bottom-up" approach that seeks to utilize the
            Sub-Adviser's global research capabilities to identify companies
            with above-average long-term growth prospects and attractive
            valuations and that possess a sustainable competitive advantage,
            such as superior or innovative products, personnel and
            distribution systems. The portfolio manager seeks to select those
            stocks with the best long-term performance expectations, using a
            broad range of company fundamentals, such as long-term growth
            prospects, price-to-earnings ratios and other valuation measures,
            dividend and profit growth, balance sheet strength and return on
            assets. The portfolio managers sell stocks in order to adjust or
            rebalance the Fund's portfolio and to replace companies with
            weakening fundamentals.

             The Fund may invest a substantial portion of its assets in the
            securities of small and medium capitalization companies. The Fund
            may utilize foreign currency exchange contracts and derivative
            instruments (such as stock index futures contracts), primarily for
            portfolio management and hedging purposes. The Fund may to a
            limited degree invest in equity securities other than common
            stocks (such as equity-linked securities, preferred stocks and
            convertible securities) and may invest up to 10% of its assets in
            other investment companies. In response to unfavorable market and
            other conditions, the Funds may make temporary investments of some
            or all of its assets in foreign and domestic fixed income
            securities and in equity securities of U.S. issuers. This would be
            inconsistent with the Fund's investment objective and principal
            strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>
           <S>             <C>                       <C>
           .  Foreign      .  Growth Securities Risk .  Focused Investment Risk
              Investment   .  Value Securities Risk  .  Leveraging Risk
              Risk         .  Smaller Company Risk   .  Credit Risk
           .  Emerging     .  Liquidity Risk         .  Management Risk
              Market Risk  .  Derivatives Risk
           .  Currency
              Risk
           .  Market Risk
           .  Issuer Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Institutional Class shares,
            which are offered in a different prospectus. This is because the
            Fund did not offer Class A, B or C shares during the periods
            shown. Although Institutional Class and Class A, B and C shares
            would have similar annual returns (because all the Fund's shares
            represent interests in the same portfolio of securities),
            Institutional Class performance would be higher than Class A, B or
            C performance because of the lower expenses and no sales charges
            paid by Institutional Class shares. The Average Annual Total
            Returns table also shows estimated historical performance for
            Class A, B, and C shares based on the performance of the Fund's
            Institutional Class shares, adjusted to reflect the actual sales
            charges (loads), distribution and/or service (12b-1) fees,
            administrative fees and other expenses paid by Class A, B and C
            shares. The performance information on the next page for periods
            prior to May 8, 2000 reflects the Fund's advisory fee rate in
            effect prior to that date (0.85% per annum), which is higher than
            the current rate (0.75% per annum). Prior to November 1, 2000, the
            Fund had different sub-advisers and would not necessarily have
            achieved the performance results shown on the next page under its
            current investment management arrangements. In addition, the Fund
            changed its investment objective and policies on November 1, 2000;
            the performance results shown on the next page would not
            necessarily have been achieved had the Fund's current objective
            and policies then been in effect. Past performance is no guarantee
            of future results.

  PIMCO Funds: Multi-Manager Series
27
<PAGE>

            PIMCO Allianz Select International Fund (continued)

            Calendar Year Total Returns -- Institutional Class

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00-
                                                            9/30/00      -14.71%


                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (10/01/99-
                                                            12/31/99)     47.11%
                                                            --------------------
                                                            Lowest (7/1/98-
                                                            9/30/98)     -17.79%
                                    [GRAPH]

                                 1998   39.40%
                                 1999  109.71%


                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
<CAPTION>
                                                                  Fund Inception
                                                    1 Year        (12/28/97)(/3/)
            ---------------------------------------------------------------------
         <S>                                        <C>           <C>
         Institutional Class                        109.71%       70.98%
            ---------------------------------------------------------------------
         Class A                                     97.43%       65.57%
            ---------------------------------------------------------------------
         Class B                                    102.44%       67.91%
            ---------------------------------------------------------------------
         Class C                                    106.44%       69.10%
            ---------------------------------------------------------------------
         MSCI EAFEIndex(/1/)                         27.30%       23.77%
            ---------------------------------------------------------------------
         Lipper International Fund Average(/2/)      40.76%       25.87%
            ---------------------------------------------------------------------
</TABLE>
            (1) The Morgan Stanley Capital International EAFE (Europe,
                Australasia, Far East ("MSCI EAFE") Index is a widely
                recognized, unmanaged index of issuers in countries of Europe,
                Australia and the Far East. It is not possible to invest
                directly in the index.
            (2) The Lipper International Fund Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest their assets in securities whose
                primary trading markets are outside of the United States. It
                does not take into account sales charges.
            (3) The Fund began operations on 12/31/97. Index comparisons begin
                on 12/31/97.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class A, B or C shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)

<TABLE>
<CAPTION>
                                                                             Maximum Contingent Deferred
                                                                             Sales Charge (Load) (as a
                            Maximum Sales Charge (Load) Imposed              percentage of original
                            on Purchases (as a percentage of offering price) purchase price)
            --------------------------------------------------------------------------------------------
         <S>      <C>                                                        <C>
         Class A            5.50%                                            1%(/1/)
            --------------------------------------------------------------------------------------------
         Class B            None                                             5%(/2/)
            --------------------------------------------------------------------------------------------
         Class C            None                                             1%(/3/)
            --------------------------------------------------------------------------------------------
</TABLE>

            (1) Imposed only in certain circumstances where Class A shares are
                purchased without a front-end sales charge at the time of
                purchase.
            (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 "Investment
                Options--Class A, B and C Shares--Contingent Deferred Sales
                Charges (CDSCs)--Class B Shares."
            (3) The CDSC on Class C shares is imposed only on shares redeemed
                in the first year.

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                                Distribution                    Total Annual
                      Advisory  and/or Service    Other         Fund Operating
         Share Class  Fees(/1/) (12b-1) Fees(/2/) Expenses(/3/) Expenses
            ------------------------------------------------------------------
         <S>          <C>       <C>               <C>           <C>
         Class A      0.75%     0.25%             0.70%         1.70%
            ------------------------------------------------------------------
         Class B      0.75      1.00              0.70          2.45
            ------------------------------------------------------------------
         Class C      0.75      1.00              0.70          2.45
            ------------------------------------------------------------------
</TABLE>

            (1) On May 8, 2000, the Fund's advisory fee rate decreased by
                0.10%, to 0.75% per annum.
            (2) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, Class B or Class C shareholders may, depending upon
                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.
            (3) Other Expenses reflects a 0.70% Administrative Fee paid by the
                class, which is subject to a reduction of 0.05% on average
                daily net assets attributable in the aggregate to the Fund's
                Class A, B and C shares in excess of $2.5 billion.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Fund with the costs
            of investing in other mutual funds. The Examples assume that you
            invest $10,000 in the noted class of shares for the time periods
            indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
                  Example: Assuming you redeem your shares              Example: Assuming you do not
                           at the end of each period                             redeem your shares
                    Year 1       Year 3       Year 5       Year 10      Year 1       Year 3      Year 5     Year 10
            -------------------------------------------------------------------------------------------------------
         <S>        <C>          <C>          <C>          <C>          <C>          <C>         <C>        <C>
         Class A    $713         $1,056       $1,422       $2,448       $  713       $1,056      $1,422     $2,448
            -------------------------------------------------------------------------------------------------------
         Class B     748          1,064        1,506        2,507          248          764       1,306      2,507
            -------------------------------------------------------------------------------------------------------
         Class C     348            764        1,306        2.786          248          764       1,306      2,786
            -------------------------------------------------------------------------------------------------------
</TABLE>


                                                                   Prospectus 28
<PAGE>

            PIMCO Small-Cap Value Fund

--------------------------------------------------------------------------------
Principal     Investment           Fund Focus             Approximate
Investments   Objective            Undervalued smaller    Capitalization Range
and           Seeks long-term      capitalization         Between $100
Strategies    growth of            common stocks          million and$1.5
              capital and                                 billion
              income               Approximate Number
                                   of Holdings            Dividend Frequency
              Fund                 100                    At least annually
              Category
              Value Stocks

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with market capitalizations of between $100 million and $1.5
            billion at the time of investment and below average P/E ratios
            relative to the market and their respective industry groups. To
            achieve income, the Fund invests a portion of its assets in
            income-producing (or dividend-paying) common stocks.

             The Fund's initial selection universe consists of approximately
            4,500 stocks of companies within the Fund's capitalization range.
            The portfolio managers screen this universe to identify
            approximately 500 undervalued stocks representing approximately
            160 industry groups. This screening process is based on a number
            of valuation factors, including P/E ratios (calculated both with
            respect to trailing operating earnings and forward earnings
            estimates) and price-to-sales, price-to-book value, and price-to-
            cash flow ratios. These factors are considered both on a relative
            basis (compared to other stocks in the same industry group) and on
            an absolute basis (compared to the overall market).

             From this narrowed universe, the portfolio managers select
            approximately 100 stocks for the Fund, each of which has close to
            equal weighting in the portfolio. They select stocks based on a
            quantitative analysis of factors including price momentum (based
            on changes in stock price relative to changes in overall market
            prices), earnings momentum (based on analysts' earnings per share
            estimates and revisions to those estimates), relative dividend
            yields and trading liquidity. The portfolio is also structured to
            have a maximum weighting of no more than 10% in any one industry.
            The portfolio managers may replace a stock if its market
            capitalization becomes excessive, if its valuation exceeds the
            average valuation of stocks represented in the S&P 500 Index, or
            when a stock within the same industry group has a considerably
            lower valuation than the Fund's current holding.

             Under normal circumstances, the Fund intends to be fully invested
            in common stocks (aside from certain cash management practices).
            The Fund may temporarily hold up to 10% of its assets in cash and
            cash equivalents for defensive purposes in response to unfavorable
            market and other conditions. This would be inconsistent with the
            Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>
           <S>                      <C>                        <C>
           . Market Risk            . Smaller Company Risk     . Credit Risk
           . Issuer Risk            . Liquidity Risk           . Management Risk
           . Value Securities Risk  . Focused Investment Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Class A shares, but the
            returns do not reflect the impact of sales charges (loads). If
            they did, the returns would be lower than those shown. Unlike the
            bar chart, performance for Class A, B and C shares in the Average
            Annual Total Returns table reflects the impact of sales charges.
            For periods prior to the inception of Class A, B and C shares
            (1/20/97), performance information shown in the bar chart and
            tables for those classes is based on the performance of the Fund's
            Institutional Class shares, which are offered in a different
            prospectus. The prior Institutional Class performance has been
            adjusted to reflect the actual sales charges (in the Average
            Annual Total Returns table only), distribution and/or service
            (12b-1) fees, administrative fees and other expenses paid by Class
            A, B and C shares. Past performance is no guarantee of future
            results.

29PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Small-Cap Value Fund (continued)

            Calendar Year Total Returns -- Class A

                                                            More Recent Return
                                                            Information
                                                            -------------------
                                                            1/1/00-
                                                            9/30/00      10.65%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            -------------------
                                                            Highest (4/1/99-
                                                            6/30/99)     16.28%
                                                            -------------------
                                                            Lowest (7/1/98-
                                                            9/30/98)    -18.71%

                                    [GRAPH]

                             1992           18.27%
                             1993           13.39%
                             1994           -4.07%
                             1995           24.98%
                             1996           27.22%
                             1997           34.47%
                             1998           -9.48%
                             1999           -6.82%


                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
<CAPTION>
                                                                 Fund Inception
                                         1 Year      5 Years     (9/30/91)(/3/)
         ----------------------------------------------------------------------
         <S>                             <C>         <C>         <C>
         Class A                         -11.95%     11.25%      10.77%
         ----------------------------------------------------------------------
         Class B                         -12.08%     11.42%      10.83%
         ----------------------------------------------------------------------
         Class C                         - 8.39%     11.69%      10.71%
         ----------------------------------------------------------------------
         Russell 2000 Index(/1/)          21.25%     16.69%      14.97%
         ----------------------------------------------------------------------
         Lipper Small-Cap Value Funds
          Average(/2/)                     5.87%     13.76%      13.08%
         ----------------------------------------------------------------------
</TABLE>

            (1) The Russell 2000 Index is a capitalization weighted broad
                based index of 2,000 small capitalization U.S. stock. It is
                not possible to invest directly in the index.
            (2) The Lipper Small-Cap Value Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest primarily in companies with market
                capitalizations of less than 250% of the dollar-weighted
                median market capitalization of the S&P Small-Cap 600 Index.
                It does not take into account sales charges.
            (3) The Fund began operations on 9/30/91. Index comparisons begin
                on 10/1/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class A, B or C shares of the Fund:
of the
Fund        Shareholder Fees (fees paid directly from your investment)

<TABLE>
<CAPTION>

                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
         ---------------------------------------------------------------------------------------------------------
         <S>      <C>                                              <C>
         Class A  5.50%                                            1%(/1/)
         ---------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
         ---------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
         ---------------------------------------------------------------------------------------------------------
</TABLE>

            (1) Imposed only in certain circumstances where Class A shares are
                purchased without a front-end sales charge at the time of
                purchase.
            (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 "Investment
                Options--Class A, B and C Shares--Contingent Deferred Sales
                Charges (CDSCs)--Class B Shares."
            (3) The CDSC on Class C shares is imposed only on shares redeemed
                in the first year.

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                               Distribution                    Total Annual
                      Advisory and/or Service    Other         Fund Operating
         Share Class  Fees     (12b-1) Fees(/1/) Expenses(/2/) Expenses
         --------------------------------------------------------------------
         <S>          <C>      <C>               <C>           <C>
         Class A      0.60%    0.25%             0.41%         1.26%
         --------------------------------------------------------------------
         Class B      0.60     1.00              0.41          2.01
         --------------------------------------------------------------------
         Class C      0.60     1.00              0.41          2.01
         --------------------------------------------------------------------
</TABLE>

            (1) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, Class B or Class C shareholders may, depending upon
                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.
            (2) Other Expenses reflects a 0.40% Administrative Fee paid by the
                class, which is subject to a reduction of 0.05% on average
                daily net assets attributable in the aggregate to the Fund's
                Class A, B and C shares in excess of $2.5 billion, and 0.01% in
                other expenses attributed to that class during the most recent
                fiscal year.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Fund with the costs
            of investing in other mutual funds. The Examples assume that you
            invest $10,000 in the noted class of shares for the time periods
            indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
                                                                                           Example: Assuming you do not
                      Example: Assuming you redeem your shares at the end of each period   redeem your shares
         Share Class  Year 1           Year 3           Year 5           Year 10           Year 1 Year 3 Year 5 Year 10
         --------------------------------------------------------------------------------------------------------------
         <S>          <C>              <C>              <C>              <C>               <C>    <C>    <C>    <C>
         Class A      $671             $928             $1,204           $1,989            $671   $928   $1,204 $1,989
         --------------------------------------------------------------------------------------------------------------
         Class B       704              930              1,283            2,048             204    630    1,083  2,048
         --------------------------------------------------------------------------------------------------------------
         Class C       304              630              1,083            2,338             204    630    1,083  2,338
         --------------------------------------------------------------------------------------------------------------
</TABLE>
                                                                   Prospectus
                                                                              30
<PAGE>

            PIMCO Target Fund

--------------------------------------------------------------------------------
Principal     Investment          Fund Focus            Approximate
Investments   Objective           Medium                Capitalization Range
and           Seeks capital       capitalization        Between $1
Strategies    appreciation; no    common stocks         billion and $10
              consideration is                          billion
              given to income

              Fund Category       Approximate Number    Dividend Frequency
              Growth Stocks       of Holdings           At least
                                  40-60                 annually

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of "growth"
            companies with market capitalizations of between $1 billion and
            $10 billion at the time of investment.

             The portfolio managers select stocks for the Fund using a
            "growth" style. The portfolio managers seek to identify companies
            with well-defined "wealth creating" characteristics, including
            superior earnings growth (relative to companies in the same
            industry or the market as a whole), high profitability and
            consistent, predictable earnings. In addition, through fundamental
            research, the portfolio managers seek to identify companies that
            are gaining market share, have superior management and possess a
            sustainable competitive advantage, such as superior or innovative
            products, personnel and distribution systems. The Fund looks to
            sell a stock when the portfolio managers believe that its
            earnings, market sentiment or relative performance are
            disappointing or if an alternative investment is more attractive.

             The Fund may also invest to a limited degree in other kinds of
            equity securities, including preferred stocks and convertible
            securities. The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). The Fund has in the past invested a
            significant portion of its assets in technology or technology-
            related companies, although there is no assurance that it will
            continue to do so in the future.

             In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              .Market Risk          .Liquidity Risk     .Focused Investment
              .Issuer Risk          .Foreign Investment  Risk
              .Growth Securities     Risk               .Credit Risk
               Risk                 .Currency Risk      .Management Risk
              .Smaller Company Risk .Technology Related
                                     Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Class A shares, but the
            returns do not reflect the impact of sales charges (loads). If
            they did, the returns would be lower than those shown. Unlike the
            bar chart, performance for Class A, B and C shares in the Average
            Annual Total Returns table reflects the impact of sales charges.
            For periods prior to the inception of Class B shares (5/22/95),
            performance information shown in the Average Annual Total Returns
            table for that class is based on the performance of the Fund's
            Class A shares. The prior Class A performance has been adjusted to
            reflect the actual sales charges, distribution and/or service
            (12b-1) fees, administrative fees and other expenses paid by Class
            B shares. Prior to March 6, 1999, the Fund had a different sub-
            adviser and would not necessarily have achieved the performance
            results shown on the next page under its current investment
            management arrangements. Past performance is no guarantee of
            future results.

  PIMCO Funds: Multi-Manager Series
31
<PAGE>

            PIMCO Target Fund (continued)

            Calendar Year Total Returns -- Class A

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00-
                                                            9/30/00       40.50%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (10/1/99-
                                                            12/31/99)     53.05%
                                                            --------------------
                                                            Lowest (7/1/98-
                                                            9/30/98)     -13.15%

                                    [GRAPH]

                            1993            24.52%
                            1994             3.09%
                            1995            30.31%
                            1996            15.68%
                            1997            15.44%
                            1998            23.27%
                            1999            66.25%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
<CAPTION>
                                                                 Fund Inception
                                          1 Year     5 Years     (12/17/92)(/3/)
         -----------------------------------------------------------------------
         <S>                              <C>        <C>         <C>
         Class A                          57.10%     28.28%      24.13%
         -----------------------------------------------------------------------
         Class B                          60.05%     28.62%      24.19%
         -----------------------------------------------------------------------
         Class C                          64.05%     28.77%      24.19%
         -----------------------------------------------------------------------
         S&P Mid-Cap 400 Index(/1/)       14.73%     23.05%      17.55%
         -----------------------------------------------------------------------
         Lipper Multi-Cap Growth Funds
          Average(/2/)                    57.98%     28.51%      20.93%
         -----------------------------------------------------------------------
</TABLE>

            (1) The S&P Mid-Cap 400 Index is an unmanaged index of middle
                capitalization U.S. stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Multi-Cap Growth Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest in companies with a variety of
                capitalization ranges without concentrating in any one market
                capitalization range over an extended period of time. Companies
                with market capitalizations of less than $5 billion at the time
                of investment. It does not take into account sales charges.
            (3) The Fund began operations on 12/17/92. Index comparisons begin
                on 12/31/92.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class A, B or C shares of the Fund:
of the
Fund        Shareholder Fees (fees paid directly from your investment)

<TABLE>
<CAPTION>
                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
         ---------------------------------------------------------------------------------------------------------
         <S>      <C>                                              <C>
         Class A  5.50%                                            1%(/1/)
         ---------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
         ---------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
         ---------------------------------------------------------------------------------------------------------
</TABLE>

            (1) Imposed only in certain circumstances where Class A shares are
                purchased without a front-end sales charge at the time of
                purchase.
            (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 "Investment
                Options--Class A, B and C Shares--Contingent Deferred Sales
                Charges (CDSCs)--Class B Shares."
            (3) The CDSC on Class C shares is imposed only on shares redeemed
                in the first year.

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                               Distribution                    Total Annual
                      Advisory and/or Service    Other         Fund Operating
         Share Class  Fees     (12b-1) Fees(/1/) Expenses(/2/) Expenses
         --------------------------------------------------------------------
         <S>          <C>      <C>               <C>           <C>
         Class A      0.55%    0.25%             0.41%         1.21%
         --------------------------------------------------------------------
         Class B      0.55     1.00              0.41          1.96
         --------------------------------------------------------------------
         Class C      0.55     1.00              0.41          1.96
         --------------------------------------------------------------------
</TABLE>

            (1) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, Class B or Class C shareholders may, depending upon
                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.
            (2) Other Expenses reflects a 0.40% Administrative Fee paid by the
                class, which is subject to a reduction of 0.05% on average
                daily net assets attributable in the aggregate to the Fund's
                Class A, B and C shares in excess of $2.5 billion, and 0.01%
                in other expenses attributable to that class during the most
                recent fiscal year.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Fund with the costs
            of investing in other mutual funds. The Examples assume that you
            invest $10,000 in the noted class of shares for the time periods
            indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
                                                                                           Example: Assuming you do not
                      Example: Assuming you redeem your shares at the end of each period   redeem your shares

         Share Class  Year 1           Year 3           Year 5           Year 10           Year 1 Year 3 Year 5 Year 10
         --------------------------------------------------------------------------------------------------------------
         <S>          <C>              <C>              <C>              <C>               <C>    <C>    <C>    <C>
         Class A      $667             $913             $1,178           $1,935            $667   $913   $1,178 $1,935
         --------------------------------------------------------------------------------------------------------------
         Class B       699              915              1,257            1,995             199    615    1,057  1,995
         --------------------------------------------------------------------------------------------------------------
         Class C       299              615              1,057            2,285             199    615    1,057  2,285
         --------------------------------------------------------------------------------------------------------------
</TABLE>
                                                                   Prospectus
                                                                              32
<PAGE>

            PIMCO Tax-Efficient Equity Fund

--------------------------------------------------------------------------------
Principal     Investment             Fund Focus           Approximate
Investments   Objective              A portion of the     Capitalization Range
and           Seeks maximum          common stocks        More than $5
Strategies    after-tax growth       represented in       billion
              of capital             the S&P 500 Index

              Fund Category          Approximate Number   Dividend Frequency
              Enhanced Index         of Holdings          Atleast
                                     More than 200        annually

            The Fund attempts to provide a total return which exceeds the
            return of the S&P 500 Index by investing in a broadly diversified
            portfolio of at least 200 common stocks. The Fund also attempts to
            achieve higher after-tax returns for its shareholders by using a
            variety of tax-efficient management strategies.

             The Fund seeks to achieve its investment objective by normally
            investing at least 95% of its assets in stocks represented in the
            S&P 500 Index. The Fund's portfolio is designed to have certain
            characteristics that are similar to those of the index, including
            such measures as dividend yield, P/E ratio, relative volatility,
            economic sector exposure, return on equity and market price-to-
            book value ratio. The Fund's return is intended to correlate
            highly with the return of the S&P 500 Index, but the portfolio
            managers attempt to produce a higher total return than the index
            by selecting a portion of the stocks represented in the index
            using the quantitative techniques described below. The portfolio
            managers also use these techniques to make sell decisions.
            Notwithstanding these strategies, there is no assurance that the
            Fund's investment performance will equal or exceed that of the S&P
            500 Index.

             The Fund intends to be fully invested in common stock (aside from
            certain cash management practices) and will not make defensive
            investments in response to unfavorable market and other
            conditions.

             Quantitative Techniques. The portfolio managers use a proprietary
            quantitative model that ranks companies based on long-term (5-10
            years) price appreciation potential. They analyze factors such as
            growth of sustainable earnings and dividend behavior. Stocks in
            the top 50% of the model's ranking are considered for purchase by
            the Fund. The Fund looks to sell stocks selected from the bottom
            20% of the model's ranking based on cost, current market value and
            anticipated benefit of replacement. The portfolio managers' sell
            discipline also focuses on reducing realized capital gains as
            indicated below.

             Tax-Efficient Strategies. The portfolio managers utilize a range
            of active tax management strategies designed to minimize the
            Fund's taxable distributions, including low portfolio turnover and
            favoring investments in low-dividend, growth-oriented companies.
            The portfolio managers also identify specific shares of stock to
            be sold that have the lowest tax cost. When prudent, stocks are
            also sold to realize capital losses in order to offset realized
            capital gains. In limited circumstances, the Fund may also
            distribute appreciated securities to shareholders to meet
            redemption requests so as to avoid realizing capital gains.
            Despite the use of these tax-efficient strategies, the Fund may
            realize gains and shareholders will incur tax liability from time
            to time.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              . Market Risk           . Growth Securities Risk . Credit Risk
              . Issuer Risk           . Leveraging Risk        . Management Risk
              . Value Securities Risk . Focused Investment Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Class A shares, but the
            returns do not reflect the impact of sales charges (loads). If
            they did, the returns would be lower than those shown. Unlike the
            bar chart, performance for Class A, B and C shares in the Average
            Annual Total Returns table reflects the impact of sales charges.
            Past performance is no guarantee of future results.

  PIMCO Funds: Multi-Manager Series
33
<PAGE>

            PIMCO Tax-Efficient Equity Fund (continued)

            Calendar Year Total Returns -- Class A

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00-9/30/00
                                                            2.67%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (10/1/99-
                                                            12/31/99)     14.98%
                                                            --------------------
                                                            Lowest (7/1/99-
                                                            9/30/99)      -7.25%

                                    [GRAPH]

                               1999       17.38%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
<CAPTION>
                                                                   Fund Inception
                                                      1 Year       (7/10/98)(/3/)
         ------------------------------------------------------------------------
         <S>                                          <C>          <C>
         Class A                                      10.95%       11.10%
         ------------------------------------------------------------------------
         Class B                                      11.49%       11.99%
         ------------------------------------------------------------------------
         Class C                                      15.49%       14.54%
         ------------------------------------------------------------------------
         S&P 500 Index(/1/)                           21.04%       20.42%
         ------------------------------------------------------------------------
         Lipper Large-Cap Core Funds Average(/2/)     22.77%       20.65%
         ------------------------------------------------------------------------
</TABLE>
            (1) The S&P 500 index is an unmanaged index of large capitalization
                U.S. stocks. It is not possible to invest directly in the index.
            (2) The Lipper Large-Cap Core Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest primarily in companies with market
                capitalizations of greater than 300% of the dollar-weighted
                median market capitalization of the S&P Mid-Cap 400 Index. It
                does not take into account sales charges.
            (3) The Fund began operations on 7/10/98. Index comparisons begin
                on 6/30/98.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class A, B or C shares of the Fund:
of the
Fund        Shareholder Fees (fees paid directly from your investment)

<TABLE>
<CAPTION>
                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
         ---------------------------------------------------------------------------------------------------------
         <S>      <C>                                              <C>
         Class A  5.50%                                            1%(/1/)
         ---------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
         ---------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
         ---------------------------------------------------------------------------------------------------------
</TABLE>

            (1) Imposed only in certain circumstances where Class A shares are
                purchased without a front-end sales charge at the time of
                purchase.
            (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 "Investment
                Options--Class A, B and C Shares--Contingent Deferred Sales
                Charges (CDSCs)--Class B Shares."
            (3) The CDSC on Class C shares is imposed only on shares redeemed
                in the first year.

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                               Distribution                    Total Annual
                      Advisory and/or Service    Other         Fund Operating
         Share Class  Fees     (12b-1) Fees(/1/) Expenses(/2/) Expenses
         --------------------------------------------------------------------
         <S>          <C>      <C>               <C>           <C>
         Class A      0.45%    0.25%             0.41%         1.11%
         --------------------------------------------------------------------
         Class B      0.45     1.00              0.41          1.86
         --------------------------------------------------------------------
         Class C      0.45     1.00              0.41          1.86
         --------------------------------------------------------------------
</TABLE>

            (1) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, Class B or Class C shareholders may, depending upon
                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.
            (2) Other Expenses reflects a 0.40% Administrative Fee paid by the
                class, which is subject to a reduction of 0.05% on average daily
                net assets attributable in the aggregate to the Fund's Class A,
                B and C shares in excess of $2.5 billion, and 0.01% in other
                expenses attributable to that class during the most recent
                fiscal year.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Fund with the costs
            of investing in other mutual funds. The Examples assume that you
            invest $10,000 in the noted class of shares for the time periods
            indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
                                                                                           Example: Assuming you do not
                      Example: Assuming you redeem your shares at the end of each period   redeem your shares
         Share Class  Year 1           Year 3           Year 5           Year 10           Year 1 Year 3 Year 5 Year 10
         --------------------------------------------------------------------------------------------------------------
         <S>          <C>              <C>              <C>              <C>               <C>    <C>    <C>    <C>
         Class A      $657             $883             $1,128           $1,827            $657   $883   $1,128 $1,827
         --------------------------------------------------------------------------------------------------------------
         Class B       689              885              1,206            1,887             189    585    1,006  1,887
         --------------------------------------------------------------------------------------------------------------
         Class C       289              585              1,006            2,180             189    585    1,006  2,180
         --------------------------------------------------------------------------------------------------------------
</TABLE>
                                                                   Prospectus
                                                                              34
<PAGE>

            PIMCO Value Fund

--------------------------------------------------------------------------------
Principal     Investment            Fund Focus            Approximate Capitali-
Investments   Objective             Undervalued           zation Range
and           Seeks long-term       larger                More than $5
Strategies    growth of             capitalization        billion
              capital and           stocks with
              income                improving             Dividend Frequency
                                    fundamentals          At least
              Fund Category                               annually
              Value Stocks          Approximate
                                    Number of
                                    Holdings
                                    40

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with market capitalizations of more than $5 billion at the time of
            investment and below-average valuations whose business
            fundamentals are expected to improve. To achieve income, the Fund
            invests a portion of its assets in income-producing (e.g.,
            dividend-paying) common stocks.

             The portfolio manager selects stocks for the Fund using a "value"
            style. The portfolio manager invests primarily in stocks of
            companies having below-average valuations whose business
            fundamentals are expected to improve. The portfolio manager
            determines valuation based on characteristics such as price-to-
            earnings, price-to-book, and price-to-cash flow ratios. The
            portfolio manager analyzes stocks and seeks to identify the key
            drivers of financial results and catalysts for change, such as new
            management and new or improved products, that indicate a company
            may demonstrate improving fundamentals in the future. The
            portfolio manager looks to sell a stock when he believes that the
            company's business fundamentals are weakening or when the stock's
            valuation has become excessive.

             The Fund may also invest to a limited degree in other kinds of
            equity securities, including preferred stocks and convertible
            securities. The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). In response to unfavorable market and
            other conditions, the Fund may make temporary investments of some
            or all of its assets in high-quality fixed income securities. This
            would be inconsistent with the Fund's investment objective and
            principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

             . Market Risk           . Foreign Investment Risk . Credit Risk
             . Issuer Risk           . Currency Risk           . Management Risk
             . Value Securities Risk . Focused Investment Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart and the information to its
            right show performance of the Fund's Class A shares, but the
            returns do not reflect the impact of sales charges (loads). If
            they did, the returns would be lower than those shown. Unlike the
            bar chart, performance for Class A, B and C shares in the Average
            Annual Total Returns table reflects the impact of sales charges.
            For periods prior to the inception of Class A, B and C shares
            (1/13/97), performance information shown in the bar chart and
            tables for those classes is based on the performance of the Fund's
            Institutional Class shares, which are offered in a different
            prospectus. The prior Institutional Class performance has been
            adjusted to reflect the actual sales charges (in the Average
            Annual Total Returns table only), distribution and/or service
            (12b-1) fees, administrative fees and other expenses paid by Class
            A, B and C shares. Prior to May 8, 2000, the Fund had a different
            sub-adviser and would not necessarily have achieved the
            performance results shown on the next page under its current
            investment management arrangements. Past performance is no
            guarantee of future results.

  PIMCO Funds: Multi-Manager Series
35
<PAGE>

            PIMCO Value Fund (continued)

            Calendar Year Total Returns -- Class A


                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00-
                                                            9/30/00       12.85%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4/1/99-
                                                            6/30/99)      17.73%
                                                            --------------------
                                                            Lowest (7/1/98-
                                                            9/30/98)     -13.27%

                                    [GRAPH]

                             1992          12.70%
                             1993          15.94%
                             1994          -4.46%
                             1995          38.37%
                             1996          19.87%
                             1997          25.71%
                             1998           9.76%
                             1999           3.81%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
<CAPTION>
                                                               Fund Inception
                                               1 Year  5 Years (12/30/91)(/3/)
         ---------------------------------------------------------------------
         <S>                                   <C>     <C>     <C>
         Class A                                -1.90% 17.55%  13.84%
         ---------------------------------------------------------------------
         Class B                                -1.16% 17.80%  13.91%
         ---------------------------------------------------------------------
         Class C                                2.21%  18.02%  13.81%
         ---------------------------------------------------------------------
         Russell 1000 Value Index (/1/)         7.34%  23.08%  17.85%
         ---------------------------------------------------------------------
         Lipper Multi-Cap Value Funds Average
          (/2/)                                 6.69%  18.32%  14.24%
         ---------------------------------------------------------------------
</TABLE>

            (1) The Russell 1000 Value Index is an unmanaged index that
                measures the performance of companies in the Russell 1000
                Index considered to have less than average growth orientation.
                It is not possible to invest directly in the index. The
                Russell 1000 Value Index replaced the S&P 500 Index (an
                unmanaged index of large capitalization common stocks.) as the
                Fund's comparative index because PIMCO Advisors believes that
                the Russell 1000 Value Index is more representative of the
                Fund's investment strategies. For periods ended December 31,
                1999, the 1 Year, 5 Year and Fund Inception average annual
                total returns of the S&P 500 Index were 21.04%, 28.56% and
                19.70%, respectively.
            (2) The Lipper Multi-Cap Value Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest in companies with a variety of
                capitalization ranges, without concentrating in any one market
                capitalization range over an extended period of time. It does
                not take into account sales charges.
            (3) The Fund began operations on 12/30/91. Index comparisons begin
                on 12/31/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class A, B or C shares of the Fund:
of the
Fund        Shareholder Fees (fees paid directly from your investment)

<TABLE>
<CAPTION>
                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
         ---------------------------------------------------------------------------------------------------------
         <S>      <C>                                              <C>
         Class A  5.50%                                            1%(/1/)
         ---------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
         ---------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
         ---------------------------------------------------------------------------------------------------------
</TABLE>

            (1) Imposed only in certain circumstances where Class A shares are
                purchased without a front-end sales charge at the time of
                purchase.
            (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 "Investment
                Options--Class A, B and C Shares--Contingent Deferred Sales
                Charges (CDSCs)--Class B Shares."
            (3) The CDSC on Class C shares is imposed only on shares redeemed
                in the first year.

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                               Distribution                    Total Annual
                      Advisory and/or Service    Other         Fund Operating
         Share Class  Fees     (12b-1) Fees(/1/) Expenses(/2/) Expenses
         --------------------------------------------------------------------
         <S>          <C>      <C>               <C>           <C>
         Class A      0.45%    0.25%             0.41%         1.11%
         --------------------------------------------------------------------
         Class B      0.45     1.00              0.41          1.86
         --------------------------------------------------------------------
         Class C      0.45     1.00              0.41          1.86
         --------------------------------------------------------------------
</TABLE>

            (1) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, Class B or Class C shareholders may, depending upon
                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.
            (2) Other Expenses reflects a 0.40% Administrative Fee paid by the
                class, which is subject to a reduction of 0.05% on average
                daily net assets attributable in the aggregate to the Fund's
                Class A, B and C shares in excess of $2.5 billion, and 0.01% in
                other expenses attributable to that class during the most
                recent fiscal year.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Fund with the costs
            of investing in other mutual funds. The Examples assume that you
            invest $10,000 in the noted class of shares for the time periods
            indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
<CAPTION>
                                                                                           Example: Assuming you do not
                      Example: Assuming you redeem your shares at the end of each period   redeem your shares
         Share Class  Year 1           Year 3           Year 5           Year 10           Year 1 Year 3 Year 5 Year 10
         --------------------------------------------------------------------------------------------------------------
         <S>          <C>              <C>              <C>              <C>               <C>    <C>    <C>    <C>
         Class A      $657             $883             $1,128           $1,827            $657   $883   $1,128 $1,827
         --------------------------------------------------------------------------------------------------------------
         Class B       689              885              1,206            1,887             189    585    1,006  1,887
         --------------------------------------------------------------------------------------------------------------
         Class C       289              585              1,006            2,180             189    585    1,006  2,180
         --------------------------------------------------------------------------------------------------------------
</TABLE>
                                                                   Prospectus
                                                                              36
<PAGE>

            Summary of Principal Risks

            The value of your investment in a Fund changes with the values of
            that Fund's investments. Many factors can affect those values. The
            factors that are most likely to have a material effect on a
            particular Fund's portfolio as a whole are called "principal
            risks." The principal risks of each Fund are identified in the
            Fund Summaries and are summarized in this section. Each Fund may
            be subject to additional principal risks and risks other than
            those described below because the types of investments made by a
            Fund can change over time. Securities and investment techniques
            mentioned in this summary and described in greater detail under
            "Characteristics and Risks of Securities and Investment
            Techniques" appear in bold type. That section and "Investment
            Objectives and Policies" in the Statement of Additional
            Information also include more information about the Funds, their
            investments and the related risks. There is no guarantee that a
            Fund will be able to achieve its investment objective.

Market      The market price of securities owned by a Fund may go up or down,
Risk        sometimes rapidly or unpredictably. Each of the Funds normally
            invests most of its assets in common stocks and/or other equity
            securities. A principal risk of investing in each Fund is that the
            equity securities in its portfolio will decline in value due to
            factors affecting equity securities markets generally or
            particular industries represented in those markets. The values of
            equity securities may decline due to general market conditions
            which are not specifically related to a particular company, such
            as real or perceived adverse economic conditions, changes in the
            general outlook for corporate earnings, changes in interest or
            currency rates or adverse investor sentiment generally. They may
            also decline due to factors which affect a particular industry or
            industries, such as labor shortages or increased production costs
            and competitive conditions within an industry. Equity securities
            generally have greater price volatility than fixed income
            securities.

Issuer      The value of a security may also decline for a number of reasons
Risk        which directly relate to the issuer, such as management
            performance, financial leverage and reduced demand for the
            issuer's goods or services.

Value       Each Fund may invest in companies that may not be expected to
Securities  experience significant earnings growth, but whose securities its
Risk        portfolio manager believes are selling at a price lower than their
            true value. The Capital Appreciation, Equity Income, Growth &
            Income, International, Mid-Cap, Renaissance, Allianz Select
            International, Small-Cap Value, Tax-Efficient Equity and Value
            Funds may place particular emphasis on value securities. Companies
            that issue value securities may have experienced adverse business
            developments or may be subject to special risks that have caused
            their securities to be out of favor. If a portfolio manager's
            assessment of a company's prospects is wrong, or if the market
            does not recognize the value of the company, the price of its
            securities may decline or may not approach the value that the
            portfolio manager anticipates.

Growth      Each Fund may invest in equity securities of companies that its
Securities  portfolio manager believes will experience relatively rapid
Risk        earnings growth. The Capital Appreciation, Global Innovation,
            Growth, Growth & Income, Innovation, International Mid-Cap,
            Opportunity, Select Growth, Allianz Select International, Target
            and Tax-Efficient Equity Funds may place particular emphasis on
            growth securities. Growth securities typically trade at higher
            multiples of current earnings than other securities. Therefore,
            the values of growth securities may be more sensitive to changes
            in current or expected earnings than the values of other
            securities.

Smaller     The general risks associated with equity securities and liquidity
Company     risk are particularly pronounced for securities of companies with
Risk        smaller market capitalizations. These companies may have limited
            product lines, markets or financial resources or they may depend
            on a few key employees. Securities of smaller companies may trade
            less frequently and in lesser volume than more widely held
            securities and their values may fluctuate more sharply than other
            securities. They may also trade in the over-the-counter market or
            on a regional exchange, or may otherwise have limited liquidity.
            The Global Innovation, Innovation, Opportunity and Small-Cap Value
            Funds generally have substantial exposure to this risk. The Growth
            & Income, Mid-Cap, Allianz Select International and Target Funds
            also have significant exposure to this risk because they invest
            substantial assets in companies with medium-sized market
            capitalizations, which are smaller and generally less-seasoned
            than the largest companies.

IPO Risk    The Funds, particularly the Global Innovation Fund, may purchase
            securities in initial public offerings (IPOs). These securities
            are subject to many of the same risks as investing in companies
            with smaller market capitalizations. Securities issued in IPOs
            have no trading history, and information about the

37 PIMCO Funds: Multi-Manager Series
<PAGE>

            companies may be available for very limited periods. In addition,
            the prices of securities sold in IPOs may be highly volatile. At
            any particular time or from time to time a Fund may not be able to
            invest in securities issued in IPOs, or invest to the extent
            desired, because, for example, only a small portion (if any) of
            the securities being offered in an IPO may be made available to
            the Fund. In addition, under certain market conditions a
            relatively small number of companies may issue securities in IPOs.
            Similarly, as the number of Funds to which IPO securities are
            allocated increases, the number of securities issued to any one
            Fund may decrease. The investment performance of a Fund during
            periods when it is unable to invest significantly or at all in
            IPOs may be lower than during periods when the Fund is able to do
            so. In addition, as a Fund increases in size, the impact of IPOs
            on the Fund's performance will generally decrease.

Liquidity   All of the Funds are subject to liquidity risk. Liquidity risk
Risk        exists when particular investments are difficult to purchase or
            sell, possibly preventing a Fund from selling such illiquid
            securities at an advantageous time or price. Funds with principal
            investment strategies that involve securities of companies with
            smaller market capitalizations, foreign securities, derivatives or
            securities with substantial market and/or credit risk tend to have
            the greatest exposure to liquidity risk.

Derivatives All Funds except the Capital Appreciation, Mid-Cap and Small-Cap
Risk        Value Funds may use derivatives, which are financial contracts
            whose value depends on, or is derived from, the value of an
            underlying asset, reference rate or index. The various derivative
            instruments that the Funds may use are referenced under
            "Characteristics and Risks of Securities and Investment
            Techniques--Derivatives" in this Prospectus and described in more
            detail under "Investment Objectives and Policies" in the Statement
            of Additional Information. The Funds may sometimes use derivatives
            as part of a strategy designed to reduce exposure to other risks,
            such as interest rate or currency risk. The Funds may also use
            derivatives for leverage, which increases opportunities for gain
            but also involves greater risk of loss due to leveraging risk. A
            Fund's use of derivative instruments involves risks different
            from, or possibly greater than, the risks associated with
            investing directly in securities and other traditional
            investments. Derivatives are subject to a number of risks
            described elsewhere in this section, such as liquidity risk,
            market risk, credit risk and management risk. They also involve
            the risk of mispricing or improper valuation and the risk that
            changes in the value of the derivative may not correlate perfectly
            with the underlying asset, rate or index. In addition, a Fund's
            use of derivatives may increase or accelerate the amount of taxes
            payable by shareholders. A Fund investing in a derivative
            instrument could lose more than the principal amount invested.
            Also, suitable derivative transactions may not be available in all
            circumstances and there can be no assurance that a Fund will
            engage in these transactions to reduce exposure to other risks
            when that would be beneficial.

Sector      In addition to other risks, Funds that invest a substantial
Specific    portion of their assets in related industries (or "sectors") may
Risks       have greater risk because companies in these sectors may share
            common characteristics and may react similarly to market
            developments.

            Technology Related Risk. Because the Global Innovation and
            Innovation Funds concentrate their investments in companies which
            utilize innovative technologies, they are subject to risks
            particularly affecting those companies, such as the risks of short
            product cycles and rapid obsolescence of products and services,
            competition from new and existing companies, significant losses
            and/or limited earnings, security price volatility and limited
            operating histories. Other Funds may also be subject to these
            risks to the extent they invest their assets in technology or
            technology-related companies.

Foreign     A Fund that invests in foreign securities, and particularly the
(non-       Global Innovation, International and Allianz Select International
U.S.)       Funds, may experience more rapid and extreme changes in value than
Investment  Funds that invest exclusively in securities of U.S. issuers or
Risk        securities that trade exclusively in U.S. markets. The securities
            markets of many foreign countries are relatively small, with a
            limited number of companies representing a small number of
            industries. Additionally, issuers of foreign securities are
            usually not subject to the same degree of regulation as U.S.
            issuers. Reporting, accounting and auditing standards of foreign
            countries differ, in some cases significantly, from U.S.
            standards. Also, nationalization, expropriation or confiscatory
            taxation, currency blockage, political changes or diplomatic
            developments could adversely affect a Fund's investments in a
            foreign country. In the event of nationalization, expropriation or
            other confiscation, a Fund could lose its entire investment in
            foreign securities. To the extent that a Fund, such as the Global
            Innovation, International or Allianz Select International Fund,
            invests a significant portion of its assets in a narrowly defined
            area such as Europe, Asia or South America, the Fund will
            generally have more exposure to regional economic risks associated
            with foreign investments. Adverse conditions in certain regions
            (such as Southeast Asia) can also adversely affect securities of
            other countries whose economies appear to be unrelated. In
            addition, special U.S. tax considerations may apply to a Fund's
            investment in foreign securities.

                                                                   Prospectus 38
<PAGE>

Emerging    Foreign investment risk may be particularly high to the extent
Markets     that a Fund invests in emerging market securities of issuers based
Risk        in countries with developing economies. These securities may
            present market, credit, currency, liquidity, legal, political and
            other risks different from, or greater than, the risks of
            investing in developed foreign countries. The Global Innovation,
            International and Allianz Select International Funds may invest
            significant portions of their assets in emerging market
            securities. In addition, the risks associated with investing in a
            narrowly defined geographic area (discussed above under "Foreign
            (non-U.S.) Investment Risk") are generally more pronounced with
            respect to investments in emerging market countries.

Currency    Funds that invest directly in foreign currencies or in securities
Risk        that trade in, and receive revenues in, foreign currencies are
            subject to the risk that those currencies will decline in value
            relative to the U.S. Dollar, or, in the case of hedging positions,
            that the U.S. Dollar will decline in value relative to the
            currency being hedged. The Global Innovation, International and
            Allianz Select International Funds are particularly sensitive to
            currency risk. Currency rates in foreign countries may fluctuate
            significantly over short periods of time for a number of reasons,
            including changes in interest rates, intervention (or the failure
            to intervene) by U.S. or foreign governments, central banks or
            supranational entities such as the International Monetary Fund, or
            by the imposition of currency controls or other political
            developments in the U.S. or abroad.

Focused     Focusing Fund investments in a small number of issuers, industries
Investment  or foreign currencies or regions increases risk. Funds, such as
Risk        the Select Growth Fund, that are "non-diversified" because they
            invest in a relatively small number of issuers may have more risk
            because changes in the value of a single security or the impact of
            a single economic, political or regulatory occurrence may have a
            greater adverse impact on the Fund's net asset value. Some of
            those issuers also may present substantial credit or other risks.
            The Global Innovation, International and Allianz Select
            International Funds may be subject to increased risk to the extent
            that they focus their investments in securities denominated in a
            particular foreign currency or in a narrowly defined geographic
            area outside the U.S., because companies in these areas may share
            common characteristics and are often subject to similar business
            risks and regulatory burdens, and their securities may react
            similarly to economic, market, political or other developments.
            Similarly, the Global Innovation and Innovation Funds are
            vulnerable to events affecting companies which use innovative
            technologies to gain a strategic, competitive advantage in their
            industry and companies that provide and service those technologies
            because these Funds normally "concentrate" their investments in
            those companies. Also, the Funds may from time to time have
            greater risk to the extent they invest a substantial portion of
            their assets in companies in related industries such as
            "technology" or "financial and business services," which may share
            common characteristics, are often subject to similar business
            risks and regulatory burdens, and whose securities may react
            similarly to economic, market, political or other developments.

Leveraging  Leverage, including borrowing, will cause the value of a Fund's
Risk        shares to be more volatile than if the Fund did not use leverage.
            This is because leverage tends to exaggerate the effect of any
            increase or decrease in the value of a Fund's portfolio
            securities. The Funds, and in particular the Global Innovation,
            International and Tax-Efficient Equity Funds, may engage in
            transactions or purchase instruments that give rise to forms of
            leverage. Such transactions and instruments may include, among
            others, the use of reverse repurchase agreements and other
            borrowings, the investment of collateral from loans of portfolio
            securities, or the use of when-issued, delayed-delivery or forward
            commitment transactions. The use of derivatives may also involve
            leverage. The use of leverage may also cause a Fund to liquidate
            portfolio positions when it would not be advantageous to do so in
            order to satisfy its obligations or to meet segregation
            requirements.

Interest    To the extent that Funds purchase fixed income securities for
Rate Risk   investment or defensive purposes, they will be subject to interest
            rate risk, a market risk relating to investments in fixed income
            securities such as bonds and notes. The Growth & Income Fund is
            particularly sensitive to this risk because it may invest in
            interest rate sensitive securities such as corporate bonds.

             As interest rates rise, the value of fixed income securities in a
            Fund's portfolio are likely to decrease. Securities with longer
            "durations" (defined below) tend to be more sensitive to changes
            in interest rates, usually making them more volatile than
            securities with shorter durations. Duration is a measure of the
            expected life of a fixed income security that is used to determine
            the sensitivity of a security's price to changes in interest
            rates. Generally, a Fund with a longer average portfolio duration
            will be more sensitive to changes in interest rates than a Fund
            with a shorter average portfolio duration.

39 PIMCO Funds: Multi-Manager Series
<PAGE>

Credit      All of the Funds are subject to credit risk. This is the risk that
Risk        the issuer or the guarantor of a fixed income security, or the
            counterparty to a derivatives contract, repurchase agreement or a
            loan of portfolio securities, is unable or unwilling to make
            timely principal and/or interest payments, or to otherwise honor
            its obligations. Securities are subject to varying degrees of
            credit risk, which are often reflected in their credit ratings.

High        Funds that invest in high yield securities and unrated securities
Yield       of similar quality (commonly known as "junk bonds") may be subject
Risk        to greater levels of interest rate, credit and liquidity risk than
            Funds that do not invest in such securities. The Growth & Income
            Fund is particularly susceptible to this risk. These securities
            are considered predominantly speculative with respect to the
            issuer's continuing ability to make principal and interest
            payments. An economic downturn or period of rising interest rates
            could adversely affect the market for these securities and reduce
            a Fund's ability to sell them.

Management  Each Fund is subject to management risk because it is an actively
Risk        managed investment portfolio. PIMCO Advisors, the Sub-Advisers and
            each individual portfolio manager will apply investment techniques
            and risk analyses in making investment decisions for the Funds,
            but there can be no guarantee that these will produce the desired
            results.
                                                                   Prospectus 40
<PAGE>

            Management of the Funds

Investment  PIMCO Advisors serves as the investment adviser and the
Adviser     administrator (serving in its capacity as administrator, the
and         "Administrator") for the Funds. Subject to the supervision of the
Admini-     Board of Trustees, PIMCO Advisors is responsible for managing,
strator     either directly or through others selected by it, the investment
            activities of the Funds and the Funds' business affairs and other
            administrative matters.

             PIMCO Advisors is located at 800 Newport Center Drive, Newport
            Beach, California 92660. Organized in 1987, PIMCO Advisors
            provides investment management and advisory services to private
            accounts of institutional and individual clients and to mutual
            funds. As of September 30, 2000, PIMCO Advisors and its subsidiary
            partnerships had approximately $272 billion in assets under
            management.

             PIMCO Advisors has retained investment management firms ("Sub-
            Advisers") to manage each Fund's investments, except that the
            PIMCO Equity Advisors division of PIMCO Advisors manages the
            investments of the Equity Income, Global Innovation, Growth,
            Growth & Income, Innovation, Opportunity, Renaissance, Select
            Growth, Target and Value Funds. (PIMCO Equity Advisors is also
            referred to as a "Sub-Adviser" in this capacity.) See "Sub-
            Advisers" below.

             PIMCO Advisors has retained its affiliate, Pacific Investment
            Management Company LLC ("Pacific Investment Management Company"),
            to provide various administrative and other services required by
            the Funds in its capacity as sub-administrator. PIMCO Advisors and
            the sub-administrator may retain other affiliates to provide
            certain of these services.

Advisory    Each Fund pays PIMCO Advisors fees in return for providing or
Fees        arranging for the provision of investment advisory services. In
            the case of Funds for which PIMCO Advisors has retained a separate
            Sub-Adviser, PIMCO Advisors (and not the Fund) pays a portion of
            the advisory fees it receives to the Sub-Adviser in return for its
            services.

             For the fiscal year ended June 30, 2000, the Funds paid monthly
            advisory fees to PIMCO Advisors at the following annual rates
            (stated as a percentage of the average daily net assets of each
            Fund taken separately):


<TABLE>
<CAPTION>
         Fund                                            Advisory Fees
         ---------------------------------------------------------------------
         <S>                                             <C>
         Capital Appreciation, Equity Income, Mid-Cap,
          Tax-Efficient Equity and Value Funds               0.45%
         Growth Fund                                         0.50%
         International and Target Funds                      0.55%
         Renaissance, Select Growth and Small-Cap Value
          Funds                                              0.60%*
         Growth & Income Fund                                0.63%*
         Innovation and Opportunity Funds                    0.65%
         Allianz Select International Fund                   0.75%*
</TABLE>
            * On April 1, 2000, the advisory fee rate for the Select Growth
              Fund increased from 0.57% to 0.60% per annum. On May 8, 2000,
              the advisory fee rate for the Allianz Select International Fund
              decreased from 0.85% to 0.75% per annum. On August 1, 2000, the
              advisory fee rate for the Growth & Income Fund decreased from
              0.63% to 0.60% per annum.

             The Global Innovation Fund was not operational during the entire
            fiscal year ended June 30, 2000. The annual investment advisory
            fee rate payable by this Fund is 1.00% (stated as a percentage of
            the average daily net assets of the Fund).

Admini-     Each Fund pays for the administrative services it requires under a
strative    fee structure which is essentially fixed. Class A, Class B and
Fees        Class C shareholders of each Fund pay an administrative fee to
            PIMCO Advisors, computed as a percentage of the Fund's assets
            attributable in the aggregate to those classes of shares. PIMCO
            Advisors, in turn, provides or procures administrative services
            for Class A, Class B and Class C shareholders and also bears the
            costs of most third-party services required by the Funds,
            including audit, custodial, portfolio accounting, legal, transfer
            agency and printing costs. The Funds do bear other expenses which
            are not covered under the administrative fee which may vary and
            affect the total level of expenses paid by Class A, Class B and
            Class C shareholders, such as brokerage fees, commissions and
            other transaction expenses, costs of borrowing money, including
            interest expenses, and fees and expenses of the Trust's
            disinterested Trustees.

41 PIMCO Funds: Multi-Manager Series
<PAGE>

             Class A, B and C shareholders of the Funds pay PIMCO Advisors
            monthly administrative fees at the following annual rates (stated
            as a percentage of the average daily net assets attributable in
            the aggregate to the Fund's Class A, Class B and Class C shares):


<TABLE>
<CAPTION>
         Fund                               Administrative Fees*
         -----------------------------------------------------------
         <S>                                <C>
         Allianz Select International Fund          0.70%
         International Fund                         0.65%
         Global Innovation Fund                     0.60%
         Growth & Income Fund                       0.50%
         All Other Funds                            0.40%
</TABLE>
            * The Administrative Fee rate for each Fund is subject to a
              reduction of 0.05% per year on average daily net assets
              attributable in the aggregate to the Fund's Class A, B and C
              shares in excess of $2.5 billion.

Sub-        Each Sub-Adviser has full investment discretion and makes all
Advisers    determinations with respect to the investment of a Fund's assets.
            The following provides summary information about each Sub-Adviser,
            including the Fund(s) it manages.

<TABLE>
<CAPTION>
         Sub-Adviser*              Funds
         ------------------------------------------------------------------------------------
         <S>                       <C>
         PIMCO Equity Advisors     Equity Income, Global Innovation, Growth, Growth & Income,
         division of PIMCO         Innovation, Opportunity, Renaissance, Select Growth,
         Advisors                  Target and Value
         ("PIMCO Equity
         Advisors")
         1345 Avenue of the
         Americas, 50th Floor
         New York, NY 10105
         ------------------------------------------------------------------------------------
         PIMCO/Allianz             Allianz Select International
         International Advisors
         LLC ("PAIA")
         1345 Avenue of the
         Americas, 50th Floor
         New York, NY 10105
         ------------------------------------------------------------------------------------
         Cadence Capital           Capital Appreciation and Mid-Cap
         Management ("Cadence")
         Exchange Place, 53 State
         Street
         Boston, MA 02109
         ------------------------------------------------------------------------------------
         NFJ Investment Group      Small-Cap Value
         ("NFJ")
         2121 San Jacinto, Suite
         1840
         Dallas, TX 75201
         ------------------------------------------------------------------------------------
         Parametric Portfolio      Tax-Efficient Equity
         Associates
         ("Parametric")
         7310 Columbia Center,
         701 Fifth Avenue
         Seattle, WA 98104
         ------------------------------------------------------------------------------------
         Blairlogie Capital        International
         Management
         ("Blairlogie")
         4th Floor, 125 Princes
         Street
         Edinburgh EH2 4AD,
         Scotland
</TABLE>
            * PIMCO Equity Advisors is a division of PIMCO Advisors. PAIA is a
              wholly-owned subsidiary of PIMCO Advisors. With the exception of
              Blairlogie, each of the other Sub-Advisers is an affiliated
              sub-partnership of PIMCO Advisors.

            The following provides additional information about each Sub-
            Adviser and the individual portfolio
            managers who have or share primary responsibility for managing the
            Funds' investments.

PIMCO       A division of PIMCO Advisors, PIMCO Equity Advisors provides
Equity      equity-related advisory services to mutual funds and institutional
Advisors    accounts. Accounts managed by PIMCO Equity Advisors had combined
            assets as of September 30, 2000 of approximately $14.5 billion.
            See "Investment Adviser and Administrator" above for additional
            information about PIMCO Advisors.
                                                                   Prospectus
                                                                              42
<PAGE>

              The following individuals at PIMCO Equity Advisors have primary
            responsibility for the noted Funds. A different sub-advisory firm
            served as Sub-Adviser for the Growth, Innovation, Opportunity and
            Target Funds prior to March 6, 1999, for the Renaissance Fund
            prior to May 7, 1999, for the Select Growth and Growth & Income
            Funds prior to July 1, 1999, and for the Equity Income and Value
            Funds prior to May 8, 2000.


<TABLE>
<CAPTION>
         Fund              Portfolio Managers          Since             Recent Professional Experience
            -------------------------------------------------------------------------------------------
         <C>               <C>                         <C>               <S>
         Equity Income     Kenneth W. Corba            2000                 Managing Director and
                                                                            Chief Investment Officer
                                                                            of PIMCO Equity Advisors
                                                                            and a Member of the
                                                                            Management Board of
                                                                            PIMCO Advisors. Prior to
                                                                            joining PIMCO Advisors,
                                                                            he was with Eagle Asset
                                                                            Management from 1995 to
                                                                            1998, serving in various
                                                                            capacities including as
                                                                            Chief Investment Officer
                                                                            and Portfolio Manager.
                                                                            He was with Stein Roe
                                                                            and Farnham Inc. from
                                                                            1984 to 1995, serving in
                                                                            various capacities
                                                                            including as Director of
                                                                            the Capital Management
                                                                            Group, Senior Vice
                                                                            President and Portfolio
                                                                            Manager.
         Global Innovation Dennis P. McKechnie         1999 (inception)+    Portfolio Manager of
                                                                            PIMCO Equity Advisors.
                                                                            Prior to joining PIMCO
                                                                            Advisors, he was with
                                                                            Columbus Circle
                                                                            Investors from 1991 to
                                                                            1999, where he managed
                                                                            equity accounts and
                                                                            served in various
                                                                            capacities including as
                                                                            Portfolio Manager for
                                                                            the Innovation Fund.
                           Jiyoung Kim                 2000                 Senior Research Analyst
                                                                            for PIMCO Innovation
                                                                            Fund, where she covers
                                                                            biotechnology,
                                                                            telecommunications
                                                                            equipment,
                                                                            semiconductors and
                                                                            networking. Prior to
                                                                            joining PIMCO Equity
                                                                            Advisors in 1999, she
                                                                            was a Senior Research
                                                                            Analyst at Fred Alger
                                                                            Management from 1994 to
                                                                            1999. Prior to that, she
                                                                            was a Senior Research
                                                                            Technician at Repligen,
                                                                            a biopharmaceutical
                                                                            company.
         Growth            Mr. Corba                   1999                 See above.
         Growth & Income   Mr. Corba                   1999                 See above.
                           Peter C. Thoms              2000                 Investment Analyst at
                                                                            Federated Investors from
                                                                            July 1998 to May 1999.
                                                                            Previously, he received
                                                                            his M.B.A. at the
                                                                            University of Virginia's
                                                                            Darden School of
                                                                            Business.
         Innovation        Mr. McKechnie               1998                 See above.
         Opportunity       Michael F. Gaffney          1999                 Managing Director of
                                                                            PIMCO Equity Advisors,
                                                                            where he manages the
                                                                            Opportunity Fund and
                                                                            other small-cap
                                                                            products. Prior to
                                                                            joining PIMCO Advisors,
                                                                            he was with Alliance
                                                                            Capital Management L.P.
                                                                            from 1993 to 1999,
                                                                            serving in various
                                                                            capacities including as
                                                                            Senior Vice President
                                                                            and Portfolio Manager.
         Renaissance       John K. Schneider           1999                 Senior Portfolio Manager
                                                                            of PIMCO Equity
                                                                            Advisors. Prior to
                                                                            joining PIMCO Advisors,
                                                                            he was a partner and
                                                                            Portfolio Manager of
                                                                            Schneider Capital
                                                                            Management from 1996 to
                                                                            1999, where he managed
                                                                            equity accounts for
                                                                            various institutional
                                                                            clients. Prior to that
                                                                            he was a member of the
                                                                            Equity Policy Committee
                                                                            and Director of Research
                                                                            at Newbold's Asset
                                                                            Management from 1991 to
                                                                            1996.
         Select Growth     Messrs. Corba and Schneider 1999                 See above.
         Target            Mr. Corba                   1999                 See above.
                           Jeff Parker                 1999                 Assistant Portfolio
                                                                            Manager and Research
                                                                            Analyst for PIMCO Equity
                                                                            Advisors. Prior to
                                                                            joining PIMCO Equity
                                                                            Advisors, he managed
                                                                            equity accounts as an
                                                                            Assistant Portfolio
                                                                            Manager at Eagle Asset
                                                                            Management from 1996 to
                                                                            1998. He was a Senior
                                                                            Consultant with Andersen
                                                                            Consulting, specializing
                                                                            in healthcare and
                                                                            technology, from 1991 to
                                                                            1994.
         Value             Mr. Schneider               2000                 See above.
</TABLE>
            -------
            + Prior to PIMCO Advisors and PIMCO Equity Advisors assuming their
              positions as Adviser and Sub-Adviser, respectively, of the
              Global Innovation Fund, Mr. McKechnie managed the Fund's
              portfolio in his capacity as an officer of the Trust.

43 PIMCO Funds: Multi-Manager Series
<PAGE>

PAIA        A wholly-owned subsidiary of PIMCO Advisors, PAIA provides
            international advisory services to mutual funds. PAIA commenced
            operations during the fourth quarter of 2000. Different firms
            served as sub-adviser to the Allianz Select International Fund
            prior to November 1, 2000.

             The following individuals at PAIA share primary responsibility
            for the Allianz Select International Fund.


<TABLE>
<CAPTION>
                                                              Recent Professional
         Fund          Portfolio Managers               Since Experience
         -----------------------------------------------------------------------------
         <C>           <C>                              <C>   <S>
         Allianz       Udo Frank (lead manager)         2000  Managing Director and
         Select                                               Chief Investment Officer
         International                                        of Allianz Asset
                                                              Advisory and Management
                                                              GmbH ("Allianz AAM"),
                                                              responsible for the
                                                              entire area (since
                                                              1997), and Chief
                                                              Executive Officer and
                                                              Chief Investment Officer
                                                              of Allianz PIMCO Asset
                                                              Management. Previously,
                                                              he served as the Chief
                                                              Investment Officer of
                                                              Allianz KAG (since
                                                              1994).
                       Wolfram Gerdes (co-manager)      2000  Managing director of
                                                              Equity Portfolio
                                                              Management at Allianz
                                                              AAM since 1998. Prior to
                                                              joining Allianz AAM, he
                                                              held various positions,
                                                              including head of
                                                              portfolio management,
                                                              with Allianz
                                                              Lebensversicherungs AG
                                                              from 1992 to 1998.
                       Gerd Wolfgang Hintz (co-manager) 2000  Managing Director of the
                                                              Equity Research
                                                              Department at Allianz
                                                              AAM since 1998. In
                                                              addition, he has been
                                                              responsible for Allianz
                                                              AAM's trading department
                                                              since January 2000.
                                                              Previously, he was the
                                                              head of Research and
                                                              Investor Relations of
                                                              Allianz AG.
</TABLE>


Cadence     An affiliated subpartnership of PIMCO Advisors, Cadence provides
            advisory services to mutual funds and institutional accounts.
            Cadence Capital Management Corporation, the predecessor investment
            adviser to Cadence, commenced operations in 1988. Accounts managed
            by Cadence had combined assets as of September 30, 2000 of
            approximately $6.8 billion.

             The following individuals at Cadence share primary responsibility
            for each of the noted Funds.


<TABLE>
<CAPTION>
                                                                           Recent Professional
         Fund                 Portfolio Managers         Since             Experience
         ------------------------------------------------------------------------------------------
         <C>                  <C>                        <C>               <S>
         Capital Appreciation David B. Breed             1991 (Inception)  Managing Director, Chief
                                                                           Executive Officer, Chief
                                                                           Investment Officer and
                                                                           founding partner of
                                                                           Cadence. Member of the
                                                                           Management Board of
                                                                           PIMCO Advisors. He is a
                                                                           research generalist and
                                                                           has lead the team of
                                                                           portfolio managers and
                                                                           analysts since 1988. Mr.
                                                                           Breed has managed
                                                                           separate equity accounts
                                                                           for many institutional
                                                                           clients and has lead the
                                                                           team that manages the
                                                                           PIMCO Funds sub-advised
                                                                           by Cadence since those
                                                                           Funds' inception dates.
                              William B. Bannick         1992              Managing Director and
                                                                           Executive Vice President
                                                                           at Cadence. Mr. Bannick
                                                                           is a research generalist
                                                                           and Senior Portfolio
                                                                           Manager for the Cadence
                                                                           team. He has managed
                                                                           separately managed
                                                                           equity accounts for
                                                                           various Cadence
                                                                           institutional clients
                                                                           and has been a member of
                                                                           the team that manages
                                                                           the PIMCO Funds sub-
                                                                           advised by Cadence since
                                                                           joining Cadence in 1992.
                              Katherine A. Burdon        1993              Managing Director and
                                                                           Senior Portfolio Manager
                                                                           at Cadence. Ms. Burdon
                                                                           is a research generalist
                                                                           and has managed
                                                                           separately managed
                                                                           equity accounts for
                                                                           various Cadence
                                                                           institutional clients
                                                                           and has been a member of
                                                                           the team that manages
                                                                           the PIMCO Funds sub-
                                                                           advised by Cadence since
                                                                           joining Cadence in 1993.
                              Peter B. McManus           1994              Director, Account
                                                                           Management at Cadence.
                                                                           He has been a member of
                                                                           the investment team at
                                                                           Cadence and handles
                                                                           client relationships of
                                                                           separately managed
                                                                           accounts, and has been a
                                                                           member of the team that
                                                                           manages the PIMCO Funds
                                                                           sub-advised by Cadence
                                                                           since joining Cadence in
                                                                           1994. Previously, he
                                                                           served as a Vice
                                                                           President of Bank of
                                                                           Boston from 1991 to
                                                                           1994.
         Mid-Cap              Messrs. Breed, Bannick and Same as Capital   See above.
                              McManus and Ms. Burdon     Appreciation Fund
</TABLE>
NFJ         An affiliated sub-partnership of PIMCO Advisors, NFJ provides
            advisory services to mutual funds and institutional accounts. NFJ
            Investment Group, Inc., the predecessor investment adviser to NFJ,
            commenced operations in 1989. Accounts managed by NFJ had combined
            assets as of September 30, 2000 of approximately $1.8 billion.


                                                                   Prospectus 44
<PAGE>

             The following individuals at NFJ share primary responsibility for
            the noted Fund.

<TABLE>
<CAPTION>
Fund        Portfolio Managers Since                  Recent Profession Experience
---------------------------------------------------------------------------------------------------------------------------
<S>         <C>                <C>                    <C>
Small-Cap   Chris Najork       1991 (Inception)       Managing Director and founding partner of NFJ. He has 30 years' experience
Value                                                 encompassing equity research and portfolio management. Prior to the formation
Fund                                                  of NFJ in 1989, he was a Senior Vice President, Senior Portfolio Manager and
                                                      analyst at NationsBank, which he joined in 1974.
            Benno J. Fischer   1991 (Inception)       Managing Director and founding partner of NFJ. He has 32 years' experience in
                                                      portfolio management, investment analysis and research. Prior to the formation
                                                      of NFJ in 1989, he was Chief Investment Officer (institutional and fixed
                                                      income), Senior Vice President and Senior Portfolio Manager at NationsBank,
                                                      which he joined in 1971. Prior to joining NationsBank, Mr. Fischer was a
                                                      securities analyst at Chase Manhattan Bank and Clark, Dodge.
            Paul A. Magnuson   1995                   Principal at NFJ. He is a Portfolio Manager and Senior Research Analyst with
                                                      14 years' experience in equity analysis and portfolio management. Prior to
                                                      joining NFJ in 1992, he was an Assistant Vice President at NationsBank, which
                                                      he joined in 1985. Within the Trust Investment Quantitative Services Division
                                                      of NationsBank, he was responsible for equity analytics and structured fund
                                                      management.
</TABLE>
Parametric  An affiliated sub-partnership of PIMCO Advisors, Parametric
            provides advisory services to mutual funds and institutional
            accounts. Parametric Portfolio Associates, Inc., the predecessor
            investment adviser to Parametric, commenced operations in 1987.
            Accounts managed by Parametric had combined assets as of September
            30, 2000 of approximately $4.4 billion.

             The following individuals at Parametric share primary
            responsibility for the Tax-Efficient Equity Fund.

<TABLE>
<CAPTION>
Fund        Portfolio Managers    Since               Recent Professional Experience
---------------------------------------------------------------------------------------------------------------------------
<S>         <C>                   <C>                 <C>
Tax-        David Stein           1998 (Inception)    Managing Director of Parametric. He has been with Parametric since 1996 where
Efficient                                             he leads the investment, research and product development activities.
Equity                                                Previously, he served in Investment Research at GTE Corporation from 1995 to
                                                      1996, in Equity Research at Vanguard Group from 1994 to 1995 and in Investment
                                                      Research at IBM Corporation from 1977 to 1994.
            Tom Seto              1998 (Inception)    Vice President and Portfolio Manager of Parametric. Since joining Parametric
                                                      in 1998, he has been responsible for management of Parametric's active U.S.
                                                      equity strategies and has managed structured equity portfolios. Previously, he
                                                      was with Barclays Global Investors from 1991 to 1998, serving in various
                                                      capacities including as head of U.S. Equity Index Investments and Portfolio
                                                      Manager.
</TABLE>
Blairlogie  Blairlogie provides advisory services to mutual funds and
            institutional accounts. Blairlogie Capital Management Ltd., the
            predecessor investment adviser to Blairlogie, commenced operations
            in 1992. Accounts managed by Blairlogie had combined assets as of
            September 30, 2000 of approximately $1.0 billion.

             Blairlogie is an indirect majority-owned subsidiary of the
            Alleghany Corporation, and is not an affiliate of PIMCO Advisors.
            Blairlogie was formerly an affiliated sub-partnership of PIMCO
            Advisors. On April 30, 1999, PIMCO Advisors sold all of its
            ownership interest in Blairlogie to subsidiaries of the Alleghany
            Corporation. PIMCO Advisors retained Blairlogie as the Sub-Adviser
            of the International Fund both prior and subsequent to this
            transaction.

             The following individual at Blairlogie has primary responsibility
            for the International Fund.

<TABLE>
<CAPTION>
Fund          Portfolio Manager   Since               Recent Professional Experience
---------------------------------------------------------------------------------------------------------------------------
<S>           <C>                 <C>                 <C>
International James Smith          1994                Chief Investment Officer of Blairlogie since 1992, responsible for setting
                                                       investment policy, asset allocation, managing the investment team and stock
                                                       selection in Latin America.
</TABLE>


Adviser/Sub- Shareholders of each Fund (except the Innovation and Mid-Cap
Adviser      Funds) have approved a proposal permitting PIMCO Advisors to enter
Relationship into new or amended sub-advisory agreements with one or more sub-
             advisers with respect to each Fund without obtaining shareholder
             approval of such agreements, subject to the conditions of an
             exemptive order that has been granted by the Securities and
             Exchange Commission. One of the conditions requires the Board of
             Trustees to approve any such agreement. In addition, the exemptive
             order prohibits PIMCO Advisors from entering into sub-advisory
             agreements with affiliates of PIMCO Advisors without shareholder
             approval, unless those affiliates are substantially wholly-owned
             by PIMCO Advisors. PIMCO Advisors has the ultimate responsibility
             to oversee the Sub-Advisers and to recommend their hiring,
             termination and replacement.

Distributor  The Trust's Distributor is PIMCO Funds Distributors LLC, a wholly
             owned subsidiary of PIMCO Advisors. The Distributor, located at
             2187 Atlantic Street, Stanford, CT 06902, is a broker-dealer
             registered with the Securities and Exchange Commission.

45 PIMCO Funds: Multi-Manager Series
<PAGE>

            Investment Options -- Class A, B and C Shares

            The Trust offers investors Class A, Class B and Class C shares of
            each Fund in this Prospectus. Each class of shares is subject to
            different types and levels of sales charges than the other classes
            and bears a different level of expenses.

             The class of shares that is best for you depends upon a number of
            factors, including the amount and the intended length of your
            investment. The following summarizes key information about each
            class to help you make your investment decision, including the
            various expenses associated with each class. More extensive
            information about the Trust's multi-class arrangements is included
            in the PIMCO Funds Shareholders' Guide for Class A, B and C Shares
            (the "Guide"), which is included as part of the Statement of
            Additional Information and can be obtained free of charge from the
            Distributor. See "How to Buy and Sell Shares--PIMCO Funds
            Shareholders' Guide" below.

Class A     . You pay an initial sales charge of up to 5.50% when you buy
Shares        Class A shares. The sales charge is deducted from your
              investment so that not all of your purchase payment is invested.

            . You may be eligible for a reduction or a complete waiver of the
              initial sales charge under a number of circumstances. For
              example, you normally pay no sales charge if you purchase
              $1,000,000 or more of Class A shares. Please see the Guide for
              details.

            . Class A shares are subject to lower 12b-1 fees than Class B or
              Class C shares. Therefore, Class A shareholders generally pay
              lower annual expenses and receive higher dividends than Class B
              or Class C shareholders.

            . You normally pay no contingent deferred sales charge ("CDSC")
              when you redeem Class A shares, although you may pay a 1% CDSC
              if you purchase $1,000,000 or more of Class A shares (and
              therefore pay no initial sales charge) and then redeem the
              shares during the first 18 months after your initial purchase.
              The Class A CDSC is waived for certain categories of investors
              and does not apply if you are otherwise eligible to purchase Class
              A shares without a sales charge. Please see the Guide for details.

Class B     . You do not pay an initial sales charge when you buy Class B
Shares        shares. The full amount of your purchase payment is invested
              initially.

            . You normally pay a CDSC of up to 5% if you redeem Class B shares
              during the first six years after your initial purchase. The
              amount of the CDSC declines the longer you hold your Class B
              shares. You pay no CDSC if you redeem during the seventh year
              and thereafter. The Class B CDSC is waived for certain categories
              of investors. Please see the Guide for details.

            . Class B shares are subject to higher 12b-1 fees than Class A
              shares for the first seven years they are held. During this
              time, Class B shareholders normally pay higher annual expenses
              and receive lower dividends than Class A shareholders.

            . Class B shares automatically convert into Class A shares after
              they have been held for seven years. After the conversion takes
              place, the shares are subject to the lower 12b-1 fees paid by
              Class A shares.

Class C     . You do not pay an initial sales charge when you buy Class C
Shares        shares. The full amount of your purchase payment is invested
              initially.

            . You normally pay a CDSC of 1% if you redeem Class C shares
              during the first year after your initial purchase. The Class C
              CDSC is waived for certain categories of investors. Please see
              the Guide for details.

            . Class C shares are subject to higher 12b-1 fees than Class A
              shares. Therefore, Class C shareholders normally pay higher
              annual expenses and receive lower dividends than Class A
              shareholders.

            . Class C shares do not convert into any other class of shares.
              Because Class B shares convert into Class A shares after seven
              years, Class C shares will normally be subject to higher
              expenses and will pay lower dividends than Class B shares if the
              shares are held for more than seven years.

            The following provides additional information about the sales
            charges and other expenses associated with Class A, Class B and
            Class C shares.

                                                                   Prospectus
                                                                              46
<PAGE>

--------------------------------------------------------------------------------
Initial     Unless you are eligible for a waiver, the public offering price
Sales       you pay when you buy Class A shares of the Funds is the net asset
Charges--   value ("NAV") of the shares plus an initial sales charge. The
Class A     initial sales charge varies depending upon the size of your
Shares      purchase, as set forth below. No sales charge is imposed where
            Class A shares are issued to you pursuant to the automatic
            reinvestment of income dividends or capital gains distributions.

            All Funds
<TABLE>
<CAPTION>
                                 Initial Sales Charge      Initial Sales Charge
         Amount of               as % of Net               as % of Public
         Purchase                Amount Invested           Offering Price
         ----------------------------------------------------------------------
         <S>                     <C>                       <C>
         $0-$49,999              5.82%                     5.50%
         ----------------------------------------------------------------------
         $50,000-$99,999         4.71%                     4.50%
         ----------------------------------------------------------------------
         $100,000-$249,999       3.63%                     3.50%
         ----------------------------------------------------------------------
         $250,000-$499,999       2.56%                     2.50%
         ----------------------------------------------------------------------
         $500,000-$999,999       2.04%                     2.00%
         ----------------------------------------------------------------------
         $1,000,000 +            0.00%*                    0.00%*
         ----------------------------------------------------------------------

            *As shown, investors that purchase $1,000,000 or more of any
            Fund's Class A shares will not pay any initial sales charge on the
            purchase. However, purchasers of $1,000,000 or more of Class A
            shares may be subject to a CDSC of 1% if the shares are redeemed
            during the first 18 months after their purchase. See "CDSCs on
            Class A Shares" below.

-------------------------------------------------------------------------------
Contingent  Unless you are eligible for a waiver, if you sell (redeem) your
Deferred    Class B or Class C shares within the time periods specified below,
Sales       you will pay a CDSC according to the following schedules.
Charges
(CDSCs)
-- Class
B and
Class C
Shares

Class B  Years Since Purchase    Percentage Contingent
Shares   Payment was Made        Deferred Sales Charge
         ----------------------------------------------------------------------
         First                   5
         ----------------------------------------------------------------------
         Second                  4
         ----------------------------------------------------------------------
         Third                   3
         ----------------------------------------------------------------------
         Fourth                  3
         ----------------------------------------------------------------------
         Fifth                   2
         ----------------------------------------------------------------------
         Sixth                   1
         ----------------------------------------------------------------------
         Seventh                 0*
         ----------------------------------------------------------------------

            *After the seventh year, Class B shares convert into Class A
            shares.

Class C  Years Since Purchase    Percentage Contingent
Shares   Payment was Made        Deferred Sales Charge
         ----------------------------------------------------------------------
         First                   1
         ----------------------------------------------------------------------
         Thereafter              0
         ----------------------------------------------------------------------
</TABLE>

--------------------------------------------------------------------------------
CDSCs on    Unless a waiver applies, investors who purchase $1,000,000 or more
Class A     of Class A shares (and, thus, pay no initial sales charge) will be
Shares      subject to a 1% CDSC if the shares are redeemed within 18 months
            of their purchase. The Class A CDSC does not apply if you are
            otherwise eligible to purchase Class A shares without an initial
            sales charge or if you are eligible for a waiver of the CDSC. See
            "Reductions and Waivers of Initial Sales Charges and CDSCs" below.

--------------------------------------------------------------------------------
How CDSCs   A CDSC is imposed on redemptions of Class B and Class C shares
are         (and where applicable, Class A shares) on the amount of the
Calculated  redemption which causes the current value of your account for the
            particular class of shares of a Fund to fall below the total
            dollar amount of your purchase payments subject to the CDSC.
            However, 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 your account above the amount of the purchase
            payments subject to the CDSC. CDSCs are deducted from the proceeds
            of your redemption, not from amounts remaining in your account. In
            determining whether a CDSC is payable, it is assumed that the
            purchase payment from which the redemption is made is the earliest
            purchase payment for the particular class of shares in your
            account (from which a redemption or exchange has not already been
            effected).

47 PIMCO Funds: Multi-Manager Series
<PAGE>

            For instance, the following example illustrates 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
              distributions 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 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
            shares of a particular class of a Fund in the shareholder's
            account are aggregated, and the current value of all such shares
            is aggregated.

--------------------------------------------------------------------------------
Reductions  The initial sales charges on Class A shares and the CDSCs on Class
and         A, Class B and Class C shares may be reduced or waived under
Waivers     certain purchase arrangements and for certain categories of
of          investors. Please see the Guide for details. The Guide is
Initial     available free of charge from the Distributor. See "How to Buy and
Sales       Sell Shares--PIMCO Funds Shareholders' Guide" below.
Charges
and CDSCs

--------------------------------------------------------------------------------
Distribu-   The Funds pay fees to the Distributor on an ongoing basis as
tion        compensation for the services the Distributor renders and the
and         expenses it bears in connection with the sale and distribution of
Servicing   Fund shares ("distribution fees") and/or in connection with
(12b-1)     personal services rendered to Fund shareholders and the
Plans       maintenance of shareholder accounts ("servicing fees"). These
            payments are made pursuant to Distribution and Servicing Plans
            ("12b-1 Plans") adopted by each Fund pursuant to Rule 12b-1 under
            the Investment Company Act of 1940.

             There is a separate 12b-1 Plan for each class of shares offered
            in this Prospectus. Class A shares pay only servicing fees. Class
            B and Class C shares pay both distribution and servicing fees. The
            following lists the maximum annual rates at which the distribution
            and/or servicing fees may be paid under each 12b-1 Plan
            (calculated as a percentage of each Fund's average daily net
            assets attributable to the particular class of shares):

<TABLE>
<CAPTION>
                                      Servicing                                     Distribution
         All Funds                    Fee                                           Fee
         ---------------------------------------------------------------------------------------
         <S>                          <C>                                           <C>
         Class A                      0.25%                                         None
         ---------------------------------------------------------------------------------------
         Class B                      0.25%                                         0.75%
         ---------------------------------------------------------------------------------------
         Class C                      0.25%                                         0.75%
         ---------------------------------------------------------------------------------------
</TABLE>

             Because 12b-1 fees are paid out of a Fund's assets on an ongoing
            basis, over time these fees will increase the cost of your
            investment and may cost you more than sales charges which are
            deducted at the time of investment. Therefore, although Class B
            and Class C shares do not pay initial sales charges, the
            distribution fees payable on Class B and Class C shares may, over
            time, cost you more than the initial sales charge imposed on Class
            A shares. Also, because Class B shares convert into Class A shares
            after they have been held for seven years and are not subject to
            distribution fees after the conversion, an investment in Class C
            shares may cost you more over time than an investment in Class B
            shares.

            How Fund Shares Are Priced

            The net asset value ("NAV") of a Fund's Class A, Class B and Class
            C shares is determined by dividing the total value of a Fund's
            portfolio investments and other assets attributable to that class,
            less any liabilities, by the total number of shares outstanding of
            that class.

             For purposes of calculating the NAV, portfolio securities and
            other assets for which market quotes are available are stated at
            market value. Market value is generally determined on the basis of
            last reported sales prices, or if no sales are reported, based on
            quotes obtained from a quotation reporting system, established
            market makers, or pricing services. Certain securities or
            investments for which daily market quotes are not readily
            available may be valued, pursuant to procedures established by the
            Board of Trustees, with reference to other securities or indices.
            Short-term investments having a maturity of 60 days or less are
            generally valued at amortized cost. Exchange traded options,
            futures and options on futures are valued at the settlement price
            determined by the exchange. Other securities for which

                                                                   Prospectus 48
<PAGE>

            market quotes are not readily available are valued at fair value
            as determined in good faith by the Board of Trustees or persons
            acting at their direction.

             Investments initially valued in currencies other than the U.S.
            dollar are converted to U.S. dollars using exchange rates obtained
            from pricing services. As a result, the NAV of a Fund's shares may
            be affected by changes in the value of currencies in relation to
            the U.S. dollar. The value of securities traded in markets outside
            the United States or denominated in currencies other than the U.S.
            dollar may be affected significantly on a day that the New York
            Stock Exchange is closed and an investor is not able to purchase,
            redeem or exchange shares. In particular, calculation of the NAV
            of the Global Innovation, International and Allianz Select
            International Funds may not take place contemporaneously with the
            determination of the prices of foreign securities used in NAV
            calculations.

             Fund shares are valued at the close of regular trading (normally
            4:00 p.m., Eastern time) (the "NYSE Close") on each day that the
            New York Stock Exchange is open. For purposes of calculating the
            NAV, the Funds normally use pricing data for domestic equity
            securities received shortly after the NYSE Close and do not
            normally take into account trading, clearances or settlements that
            take place after the NYSE Close. Domestic fixed income and foreign
            securities are normally priced using data reflecting the earlier
            closing of the principal markets for those securities. Information
            that becomes known to the Funds or their agents after the NAV has
            been calculated on a particular day will not generally be used to
            retroactively adjust the price of a security or the NAV determined
            earlier that day.

             In unusual circumstances, instead of valuing securities in the
            usual manner, the Funds may value securities at fair value or
            estimate their value as determined in good faith by the Board of
            Trustees or persons acting at their direction pursuant to
            procedures approved by the Board of Trustees. Fair valuation may
            also be used by the Board of Trustees if extraordinary events
            occur after the close of the relevant market but prior to the NYSE
            Close.

            How to Buy and Sell Shares

            The following section provides basic information about how to buy,
            sell (redeem) and exchange shares of the Funds.

PIMCO       More detailed information about the Trust's purchase, sale and
Funds       exchange arrangements for Fund shares is provided in the PIMCO
Share-      Funds Shareholders' Guide, which is included in the Statement of
holders'    Additional Information and can be obtained free of charge from the
Guide       Distributor by written request or by calling 1-800-426-0107. The
            Guide provides technical information about the basic arrangements
            described below and also describes special purchase, sale and
            exchange features and programs offered by the Trust, including:

            . Automated telephone and wire transfer procedures
            . Automatic purchase, exchange and withdrawal programs
            . Programs that establish a link from your Fund account to your
              bank account
            . Special arrangements for tax-qualified retirement plans
            . Investment programs which allow you to reduce or eliminate the
              initial sales charges on Class A shares
            . Categories of investors that are eligible for waivers or
              reductions of initial sales charges and CDSCs

Calculation When you buy shares of the Funds, you pay a price equal to the NAV
of Share    of the shares, plus any applicable sales charge. When you sell
Price and   (redeem) shares, you receive an amount equal to the NAV of the
Redemption  shares, minus any applicable CDSC. NAVs are determined at the
Payments    close of regular trading (normally, 4:00 p.m., Eastern time) on
            the New York Stock Exchange on each day the New York Stock
            Exchange is open. See "How Fund Shares Are Priced" above for
            details. Generally, purchase and redemption orders for Fund shares
            are processed at the NAV next calculated after your order is
            received by the Distributor. There are certain exceptions where an
            order is received by a broker or dealer prior to the close of
            regular trading on the New York Stock Exchange and then
            transmitted to the Distributor after the NAV has been calculated
            for that day (in which case the order may be processed at that
            day's NAV). Please see the Guide for details.

             The Trust does not calculate NAVs or process orders on days when
            the New York Stock Exchange is closed. If your purchase or
            redemption order is received by the Distributor on a day when the
            New York Stock Exchange is closed, it will be processed on the
            next succeeding day when the New York Stock Exchange is open (at
            the succeeding day's NAV).

49 PIMCO Funds: Multi-Manager Series
<PAGE>

Buying      You can buy Class A, Class B or Class C shares of the Funds in the
Shares      following ways:

             . Through your broker, dealer or other financial intermediary.
               Your broker, dealer or other intermediary may establish higher
               minimum investment requirements than the Trust and may also
               independently charge you transaction fees and additional
               amounts (which may vary) in return for its services, which will
               reduce your return. Shares you purchase through your broker,
               dealer or other intermediary will normally be held in your
               account with that firm.

             . Directly from the Trust. To make direct investments, you must
               open an account with the Distributor and send payment for your
               shares either by mail or through a variety of other purchase
               options and plans offered by the Trust.

             If you wish to invest directly by mail, please send a check
            payable to PIMCO Funds Distributors LLC, along with a completed
            application form to:

                                    PIMCO Funds Distributors LLC
                                    P.O. Box 9688
                                    Providence, RI 02940-0926

             The Trust accepts all purchases by mail subject to collection of
            checks at full value and conversion into federal funds. You may
            make subsequent purchases by mailing a check to the address above
            with a letter describing the investment or with the additional
            investment portion of a confirmation statement. Checks for
            subsequent purchases should be payable to PIMCO Funds Distributors
            LLC and should clearly indicate your account number. Please call
            the Distributor at 1-800-426-0107 if you have any questions
            regarding purchases by mail.

             The Guide describes a number of additional ways you can make
            direct investments, including through the PIMCO Funds Auto-Invest
            and PIMCO Funds Fund Link programs. You can obtain a Guide free of
            charge from the Distributor by written request or by calling 1-
            800-426-0107. See "PIMCO Funds Shareholders' Guide" above.

             The Distributor, in its sole discretion, may accept or reject any
            order for purchase of Fund shares. No share certificates will be
            issued unless specifically requested in writing.

Investment  The following investment minimums apply for purchases of Class A,
Minimums    Class B and Class C shares.

<TABLE>
<CAPTION>
                     Initial Investment                 Subsequent Investments
                     ------------------                 ----------------------
                     <S>                                <C>
                     $2,500 per Fund                        $100 per Fund
</TABLE>

             Lower minimums may apply for certain categories of investors,
            including certain tax-qualified retirement plans, and for special
            investment programs and plans offered by the Trust, such as the
            PIMCO Funds Auto-Invest and PIMCO Funds Fund Link programs. Please
            see the Guide for details.

Small       Because of the disproportionately high costs of servicing accounts
Account     with low balances, if you have a direct account with the
Fee         Distributor, you will be charged a fee at the annual rate of $16
            if your account balance for any Fund falls below a minimum level
            of $2,500, except for Uniform Gift to Minors, IRA, Roth IRA and
            Auto-Invest accounts for which the limit is $1,000. The fee also
            applies 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.) However, you will not be charged this fee if the
            aggregate value of all of your PIMCO Funds accounts is at least
            $50,000. Any applicable small account fee will be deducted
            automatically from your below-minimum Fund account in quarterly
            installments and paid to the Administrator. Each Fund account will
            normally be valued, and any deduction taken, during the last five
            business days of each calendar quarter. Lower minimum balance
            requirements and waivers of the small account fee apply for
            certain categories of investors. Please see the Guide for details.

Minimum     Due to the relatively high cost to the Funds of maintaining small
Account     accounts, you are asked to maintain an account balance in each
Size        Fund in which you invest of at least the minimum investment
            necessary to open the particular type of account. If your balance
            for any Fund remains below the minimum for three months or longer,
            the Administrator has the right (except in the case of employer-
            sponsored retirement accounts) to redeem your remaining shares and
            close that Fund account after giving you 60 days to increase your
            balance. Your Fund account will not be liquidated if the reduction
            in size is due solely to a decline in market value of your Fund
            shares or if the aggregate value of all your PIMCO Funds accounts
            exceeds $50,000.

                                                                   Prospectus 50
<PAGE>

Exchanging  Except as provided below and/or in the applicable Funds' or
Shares      series' prospectus(es), you may exchange your Class A, Class B or
            Class C shares of any Fund for the same Class of shares of any
            other Fund or of another series of the Trust or PIMCO Funds:
            Pacific Investment Management Series. Shares are exchanged on the
            basis of their respective NAVs next calculated after your exchange
            order is received by the Distributor. Currently, the Trust does
            not charge any exchange fees or charges. Exchanges are subject to
            the $2,500 minimum initial purchase requirements for each Fund,
            except with respect to tax-qualified programs and exchanges
            effected through the PIMCO Funds Auto-Exchange plan. In addition,
            an exchange is generally a taxable event which will generate
            capital gains or losses, and special rules may apply in computing
            tax basis when determining gain or loss. If you maintain your
            account with the Distributor, you may exchange shares by
            completing a written exchange request and sending it to PIMCO
            Funds Distributors LLC, P.O. Box 9688, Providence, RI 02940-0926.
            You can get an exchange form by calling the Distributor at 1-800-
            426-0107.

             The Trust reserves the right to refuse exchange purchases if, in
            the judgment of PIMCO Advisors, 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 PIMCO Advisors 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 PIMCO 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 intention of terminating or modifying the exchange
            privilege other than as set forth in the preceeding sentence, it
            reserves the right to do so at any time. Except as otherwise
            permitted by the Securities and Exchange Commission, the Trust
            will give you 60 days' advance notice if it exercises its right to
            terminate or materially modify the exchange privilege with respect
            to Class A, B and C shares.

             The Guide provides more detailed information about the exchange
            privilege, including the procedures you must follow and additional
            exchange options. You can obtain a Guide free of charge from the
            Distributor by written request or by calling 1-800-426-0107. See
            "PIMCO Funds Shareholders' Guide" above.

Selling     You can sell (redeem) Class A, Class B or Class C shares of the
Shares      Funds in the following ways:

              . Through your broker, dealer or other financial intermediary.
            Your broker, dealer or other intermediary may independently charge
            you transaction fees and additional amounts (which may vary) in
            return for its services, which will reduce your return.

              . Directly from the Trust by Written Request. To redeem shares
            directly from the Trust by written request (whether or not the
            shares are represented by certificates), you must send the
            following items to the Trust's Transfer Agent, PFPC, 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 Transfer
              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 certificate or
              accompanying stock power, if required, as described under
              "Signature Guarantee" below;

              (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 requested
            by and payable to all shareholders of record for the account that
            is to be sent to the address of record for that account. To avoid
            delay in redemption or transfer, if you have any questions about
            these requirements you should contact the Transfer Agent in
            writing or call 1-800-426-0107 before submitting a request.
            Written redemption or
            transfer requests will not be honored until all required documents
            in the proper form have been received by the Transfer Agent. You
            can not redeem your shares by written request to the Trust if they
            are held in broker "street name" accounts--you must redeem through
            your broker.

             If the proceeds of your redemption (i) are to be paid to a person
            other than the record owner, (ii) are to be sent to an address
            other than the address of the account on the Transfer Agent's
            records,

51  PIMCO Funds: Multi-Manager Series
<PAGE>

            or (iii) are to be paid to a corporation, partnership, trust or
            fiduciary, the signature(s) on the redemption request and on the
            certificates, if any, or stock power must be guaranteed as
            described under "Signature Guarantee" below. The Distributor may,
            however, waive the signature guarantee requirement for redemptions
            up to $2,500 by a trustee of a qualified retirement plan, the
            administrator for which has an agreement with the Distributor.

             The Guide describes a number of additional ways you can redeem
            your shares, including:

                . Telephone requests to the Transfer Agent
                . PIMCO Funds Automated Telephone System (ATS)
                . Expedited wire transfers
                . Automatic Withdrawal Plan
                . PIMCO Funds Fund Link

             Unless you specifically elect otherwise, your initial account
            application permits you to redeem shares by telephone subject to
            certain requirements. To be eligible for ATS, expedited wire
            transfer, Automatic Withdrawal Plan, and Fund Link privileges, you
            must specifically elect the particular option on your account
            application and satisfy certain other requirements. The Guide
            describes each of these options and provides additional
            information about selling shares. You can obtain a Guide free of
            charge from the Distributor by written request or by calling 1-
            800-426-0107.

             Other than an applicable CDSC, you will not pay any special fees
            or charges to the Trust or the Distributor when you sell your
            shares. However, if you sell your shares through your broker,
            dealer or other financial intermediary, that firm may charge you a
            commission or other fee for processing your redemption request.

             Redemptions of Fund shares may be suspended when trading on the
            New York Stock 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 assets,
            or during any other period as permitted by the Securities and
            Exchange Commission for the protection of investors. Under these
            and other unusual circumstances, the Trust may suspend redemptions
            or postpone payments for more than seven days, as permitted by
            law.

Timing of   Redemption proceeds will normally be mailed to the redeeming
Redemption  shareholder within seven calendar days or, in the case of wire
Payments    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 proceeds 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. Under unusual circumstances, the Trust
            may delay your redemption payments for more than seven days, as
            permitted by law.

Redemptions The Trust has agreed to redeem shares of each Fund solely in cash
In Kind     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 may 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 your shares would ever be redeemed in
            kind. If your shares are redeemed in kind, you should expect to
            incur transaction costs upon the disposition of the securities
            received in the distribution.

Certifi-    If you are redeeming shares for which certificates have been
cated       issued, the certificates must be mailed to or deposited with the
Shares      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 "Signature Guarantee" below. The
            Trust may request further documentation from institutions or
            fiduciary accounts, such as corporations, custodians (e.g., under
            the Uniform Gifts to Minors Act), executors, administrators,
            trustees or guardians. Your redemption request and stock power
            must be signed exactly as the account is registered, including
            indication of any special capacity of the registered owner.

Signature   When a signature guarantee is called for, you should have
Guarantee   "Signature Guaranteed" stamped under your signature and guaranteed
            by any of the following entities: U.S. banks, foreign banks having
            a U.S. correspondent bank, credit unions, savings associations,
            U.S. registered dealers and brokers, municipal securities dealers
            and brokers, government securities dealers and brokers, national
            securities
                                                                   Prospectus
                                                                              52
<PAGE>

            exchanges, registered securities associations and clearing
            agencies (each an "Eligible Guarantor Institution"). The
            Distributor reserves the right to reject any signature guarantee
            pursuant to its written signature guarantee standards or
            procedures, which may permit it to reject signature guarantees
            from Eligible Guarantor Institutions that do not, based on credit
            guidelines, satisfy such written standards or procedures.

             Beginning January 1, 2001, when a signature guarantee is called
            for, a "medallion" signature guarantee will be required. A
            medallion signature guarantee may be obtained from a domestic bank
            or trust company, broker, dealer, clearing agency, savings
            association or other financial institution which is participating
            in a medallion program recognized by the Securities Transfer
            Association. The three recognized medallion programs are the
            Securities Transfer Agents Medallion Program (STAMP), Stock
            Exchanges Medallion Program (SEMP) and New York Stock Exchange,
            Inc. Medallion Signature Program (NYSE MSP). Signature guarantees
            from financial institutions which are not participating in one of
            these programs will not be accepted. Please note that financial
            institutions participating in a recognized medallion program may
            still be ineligible to provide a signature guarantee for
            transactions of greater than a specified dollar amount. The Trust
            may change the signature guarantee requirements from time to time
            upon notice to shareholders, which may be given by means of a new
            or supplemented Prospectus or a new supplemented Guide.
            Shareholders should contact the Distributor for additional details
            regarding the Funds' signature guarantee requirements.

            Fund Distributions

            Each Fund distributes substantially all of its net investment
            income to shareholders in the form of dividends. You begin earning
            dividends on Fund shares the day after the Trust receives your
            purchase payment. Dividends paid by each Fund 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 expected to
            be lower than dividends on Class A shares as a result of the
            distribution fees applicable to Class B and Class C shares. The
            following shows when each Fund intends to declare and distribute
            income dividends to shareholders of record.

<TABLE>
<CAPTION>
          Fund                      At Least Annually                 Quarterly
          ---------------------------------------------------------------------
         <S>                        <C>                           <C>
          Equity Income Fund                                              .
          ---------------------------------------------------------------------
          All other Funds                  .
          ---------------------------------------------------------------------
</TABLE>

             In addition, each Fund distributes any net capital gains it earns
            from the sale of portfolio securities to shareholders no less
            frequently than annually. Net short-term capital gains may be paid
            more frequently.

             You can choose from the following distribution options:

             . Reinvest all distributions in additional shares of the same
               class of your Fund at NAV. This will be done unless you elect
               another option.

             . Invest all distributions in shares of the same class of any
               other Fund or another series of the Trust or PIMCO Funds:
               Pacific Investment Management Series which offers that class at
               NAV. You must have an account existing in the Fund or series
               selected for investment with the identical registered name. You
               must elect this option on your account application or by a
               telephone request to the Transfer Agent at 1-800-426-0107.

             . Receive all distributions in cash (either paid directly to you
               or credited to your account with your broker or other financial
               intermediary). You must elect this option on your account
               application or by a telephone request to the Transfer Agent at 1-
               800-426-0107.

             You do not pay any sales charges on shares you receive through
            the reinvestment of Fund distributions.

             If you elect to receive Fund distributions in cash and the postal
            or other delivery service is unable to deliver checks to your
            address of record, the Trust's Transfer Agent will hold the
            returned checks for your benefit in a non-interest bearing
            account.

             For further information on distribution options, please contact
            your broker or call the Distributor at 1-800-426-0107.

53 PIMCO Funds: Multi-Manager Series
<PAGE>

            Tax Consequences

             . Taxes on Fund distributions. If you are subject to U.S. federal
            income tax, you will be subject to tax on Fund distributions
            whether you received them in cash or reinvested them in additional
            shares of the Funds. For federal income tax purposes, Fund
            distributions will be taxable to you as either ordinary income or
            capital gains.

             Fund dividends (i.e., distributions of investment income) are
            taxable to you as ordinary income. Federal taxes on Fund
            distributions of gains are determined by how long the Fund owned
            the investments that generated the gains, rather than how long you
            have owned your shares. Distributions of gains from investments
            that a Fund owned for more than 12 months will generally be
            taxable to you as capital gains. Distributions of gains from
            investments that the Fund owned for 12 months or less will
            generally be taxable to you as ordinary income.

             Fund distributions are taxable to you even if they are paid from
            income or gains earned by a Fund prior to your investment and thus
            were included in the price you paid for your shares. For example,
            if you purchase shares on or just before the record date of a Fund
            distribution, you will pay full price for the shares and may
            receive a portion of your investment back as a taxable
            distribution.

             . Taxes when you sell (redeem) or exchange your shares. Any gain
            resulting from the sale of Fund shares will generally be subject
            to federal income tax. When you exchange shares of a Fund for
            shares of another series, the transaction generally will be
            treated as a sale of the Fund shares for these purposes, and any
            gain on those shares will generally be subject to federal income
            tax.

             . A Note on the Tax-Efficient Equity Fund. The Tax-Efficient
            Equity Fund utilizes a number of tax-efficient management
            techniques designed to minimize taxable distributions. For
            instance, the Fund generally seeks to minimize realized gains and,
            when realizing gains, attempts to realize gains that will be taxed
            as capital gains (i.e., as gains on investments owned for more
            than 12 months) when distributed to shareholders. Although the
            Fund attempts to minimize taxable distributions, it may be
            expected to earn and distribute taxable income and realize and
            distribute capital gains from time to time.

             . A Note on Foreign Investments. A Fund's investment in foreign
            securities may be subject to foreign withholding taxes. In that
            case, the Fund's yield on those securities would be decreased. In
            addition, a Fund's investments in foreign securities or foreign
            currencies may increase or accelerate the Fund's recognition of
            ordinary income and may affect the timing or amount of the Fund's
            distributions. Shareholders of the Global Innovation,
            International and Allianz Select International Funds may be
            entitled to claim a credit or deduction with respect to foreign
            taxes.

             This section relates only to federal income tax consequences of
            investing in the Funds; the consequences under other tax laws may
            differ. You should consult your tax advisor as to the possible
            application of foreign, state and local income tax laws to Fund
            dividends and capital distributions. Please see the Statement of
            Additional Information for additional information regarding the
            tax aspects of investing in the Funds.

            Characteristics and Risks of Securities and Investment Techniques

            This section provides additional information about some of the
            principal investments and related risks of the Funds identified
            under "Summary Information" above. It also describes
            characteristics and risks of additional securities and investment
            techniques that are not necessarily principal investments or
            strategies but may be used by the Funds from time to time. Most of
            these securities and investment techniques are discretionary,
            which means that the portfolio managers can decide whether to use
            them or not. This Prospectus does not attempt to disclose all of
            the various types of securities and investment techniques that may
            be used by the Funds. As with any mutual fund, investors in the
            Funds must rely on the professional investment judgment and skill
            of PIMCO Advisors, the Sub-Advisers and the individual portfolio
            managers. Please see "Investment Objectives and Policies" in the
            Statement of Additional Information for more detailed information
            about the securities and investment techniques described in this
            section and about other strategies and techniques that may be used
            by the Funds.
                                                                   Prospectus 54
<PAGE>

Fixed       Fixed income securities are obligations of the issuer to make
Income      payments of principal and/or interest on future dates, and include
Securities  corporate and government bonds, notes, certificates of deposit,
and         commercial paper, convertible securities and mortgage-backed and
Defensive   other asset-backed securities.
Strategies
             The Capital Appreciation, Mid-Cap and Tax-Efficient Equity Funds
            intend to be as fully invested in common stocks as practicable at
            all times, although, for cash management purposes, each of these
            Funds may maintain a portion of its assets (normally not more than
            10%) in U.S. Government securities, high quality fixed income
            securities, money market obligations and cash to pay certain Fund
            expenses and to meet redemption requests. None of these Funds will
            make defensive investments in response to unfavorable market and
            other conditions and therefore may be particularly vulnerable to
            general declines in stock prices and/or other categories of
            securities in which they invest.

             Under normal circumstances, the Small-Cap Value Fund intends to
            be fully invested in common stocks (aside from cash management
            practices), except that the Fund may temporarily hold up to 10% of
            its assets in cash and cash equivalents for defensive purposes in
            response to unfavorable market and other conditions. The Equity
            Income, Global Innovation, Growth, Innovation, International,
            Opportunity, Renaissance, Select Growth, Allianz Select
            International, Target and Value Funds will each invest primarily
            in common stocks, and may also invest in other kinds of equity
            securities, including preferred stocks and securities (including
            fixed income securities and warrants) convertible into or
            exercisable for common stocks. Each of these Funds may invest a
            portion of its assets in fixed income securities. These Funds may
            temporarily hold up to 100% of their assets in short-term U.S.
            Government securities and other money market instruments for
            defensive purposes in response to unfavorable market and other
            conditions. The Growth & Income Fund will invest primarily in
            common stocks, but may also invest significant portions of its
            assets in preferred stocks, fixed income securities, convertible
            securities and real estate investment trusts, or "REITs." The
            Growth & Income Fund may temporarily hold up to 100% of its assets
            in short-term U.S. Government securities and other money market
            instruments for defensive purposes in response to unfavorable
            market and other conditions. The International and Allianz Select
            International Funds may also hold up to 100% of their assets in
            other domestic fixed income, foreign fixed income and equity
            securities principally traded in the U.S., including obligations
            issued or guaranteed by a foreign government or its agencies,
            authorities or instrumentalities, corporate bonds and American
            Depository Receipts, for temporary defensive purposes. The
            temporary defensive strategies described in this paragraph would
            be inconsistent with the investment objective and principal
            investment strategies of each of the noted Funds and may adversely
            affect the Fund's ability to achieve its investment objective.

Companies   Each of the Funds may invest in securities of companies with
With        market capitalizations that are small compared to other publicly
Smaller     traded companies. The Opportunity and Small-Cap Value Funds invest
Market      primarily in smaller companies and are especially sensitive to the
Capitali-   risks described below. In addition, the Global Innovation and
ations      Innovation Funds generally have substantial exposure to these
            risks. The Growth & Income, Mid-Cap, Allianz Select International
            and Target Funds also have significant exposure to these risks
            because they invest primarily in companies with medium-sized
            market capitalizations, which are smaller and generally less well-
            known or seasoned than the largest companies.

             Companies which are smaller and less well-known or seasoned than
            larger, more widely held companies may offer greater opportunities
            for capital appreciation, but may also involve risks different
            from, or greater than, risks normally associated with larger
            companies. Larger 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 than smaller
            companies. Smaller companies may have limited product lines,
            markets or financial resources or may depend on a small,
            inexperienced management group. Securities of smaller companies
            may trade less frequently and in lesser volume than more widely
            held securities and their values may fluctuate more abruptly or
            erratically than securities of larger companies. They may also
            trade in the over-the-counter market or on a regional exchange, or
            may otherwise have limited liquidity. These securities may
            therefore be more vulnerable to adverse market developments than
            securities of larger companies. Also, there may be less publicly
            available information about smaller companies or less market
            interest in their securities as compared to larger companies, and
            it may take longer for the prices of the securities to reflect the
            full value of a company's earnings potential or assets.

             Because securities of smaller companies may have limited
            liquidity, a Fund may have difficulty establishing or closing out
            its positions in smaller companies at prevailing market prices. 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. For these reasons, it may be prudent for a Fund with a
            relatively large

55 PIMCO Funds: Multi-Manager Series
<PAGE>

            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
            smaller capitalization securities, which could adversely affect
            performance.

Initial     The Funds, particularly the Global Innovation Fund, may purchase
Public      securities in initial public offerings (IPOs). These securities
Offerings   are subject to many of the same risks of investing in companies
            with smaller market capitalizations. Securities issued in IPOs
            have no trading history, and information about the companies may
            be available for very limited periods. In addition, the prices of
            securities sold in IPOs may be highly volatile. At any particular
            time or from time to time a Fund may not be able to invest in
            securities issued in IPOs, or invest to the extent desired,
            because, for example, only a small portion (if any) of the
            securities being offered in an IPO may be made available to the
            Fund. In addition, under certain market conditions fewer companies
            may issue securities in IPOs. Similarly, as the number of Funds to
            which IPO securities are allocated increases, the number of
            securities issued to any one Fund may decrease. The investment
            performance of a Fund during periods when it is unable to invest
            significantly or at all in IPOs may be lower than during periods
            when the Fund is able to do so. In addition, as a Fund increases
            in size, the impact of IPOs on the Fund's performance will
            generally decrease.

Foreign     The International and Allianz Select International Funds normally
(non-       invest principally in securities of foreign issuers, securities
U.S.)       traded principally in securities markets outside the United States
Securities  and/or securities denominated in foreign currencies (together,
            "foreign securities"). The Global Innovation Fund will invest in
            the securities of issuers located in at least three countries (one
            of which may be the United States). The Equity Income, Growth,
            Growth & Income, Innovation, Opportunity, Renaissance, Target and
            Value Funds may invest up to 15% of their respective assets in
            foreign securities. The Select Growth Fund may invest up to 25% of
            its assets in foreign securities. Each of these Funds may invest
            without limit in ADRs (defined below). The Tax-Efficient Equity
            Fund may invest in common stocks of foreign issuers if included in
            the S&P 500 Index.

             All of the Funds may invest in American Depository Receipts
            (ADRs). In addition, the Equity Income, Global Innovation, Growth,
            Growth & Income, Innovation, International, Opportunity,
            Renaissance, Select Growth, Allianz Select International, Target
            and Value Funds may invest in European Depository Receipts (EDRs)
            and Global Depository Receipts (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 traded in public or private markets in other
            countries.

             Investing in foreign securities involves special risks and
            considerations not typically associated with investing in U.S.
            securities and shareholders should consider carefully the
            substantial risks involved for Funds that invest in these
            securities. These risks include: differences in accounting,
            auditing and financial reporting standards; generally higher
            commission rates on foreign portfolio transactions; the
            possibility of nationalization, expropriation or confiscatory
            taxation; adverse changes in investment or exchange control
            regulations; and political instability. 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 foreign securities
            markets may change independently of each other. Also, 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. Investments in foreign
            securities may also involve higher custodial costs than domestic
            investments and additional transaction costs with respect to
            foreign currency conversions. Changes in foreign exchange rates
            also will affect the value of securities denominated or quoted in
            foreign currencies.

Emerging    Each of the Funds that may invest in foreign securities may invest
Market      in securities of issuers based in or that trade principally in
Securities  countries with developing (or "emerging market") economies. The
            Global Innovation, International and Allianz Select International
            Funds may invest significant portions of their assets in emerging
            market securities. Investing in emerging market securities imposes
            risks different from, or greater than, risks of investing in
            domestic securities or in foreign, developed countries. These
            risks include: smaller market capitalization of securities
            markets, which may suffer periods of relative illiquidity;
            significant price volatility; restrictions on foreign investment;
            and possible repatriation of investment income and capital. In
            addition, foreign investors may be required to register

                                                                   Prospectus 56
<PAGE>

            the proceeds of sales, and future economic or political crises
            could lead to price controls, forced mergers, expropriation or
            confiscatory taxation, seizure, nationalization or the creation of
            government monopolies. The currencies of emerging market countries
            may experience significant declines against the U.S. dollar, 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.

             Additional risks of emerging market securities may include:
            greater social, economic and political uncertainty and
            instability; more substantial governmental involvement in the
            economy; less governmental supervision and regulation;
            unavailability of currency hedging techniques; companies that are
            newly organized and small; differences in auditing and financial
            reporting standards, which may result in unavailability of
            material information about issuers; and less developed legal
            systems. 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 be delayed 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. Each of the Global Innovation, International and
            Allianz Select International Funds may invest a significant
            portion of its 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.

Foreign     A Fund that invests directly in foreign currencies or in
Currencies  securities that trade in, and receive revenues in, foreign
            currencies will be subject to currency risk. The Global
            Innovation, International and Allianz Select International Funds
            are particularly sensitive to this risk.

             Foreign currency exchange rates may fluctuate significantly over
            short periods of time. They generally are determined by supply and
            demand and the relative merits of investments in different
            countries, actual or perceived changes in interest rates and other
            complex factors. 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. For example, uncertainty
            surrounds the introduction of the euro (a common currency unit for
            the European Union) and the effect it may have on the value of
            European currencies as well as 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.

             Foreign Currency Transactions. The Equity Income, Global
            Innovation, Growth, Growth & Income, Innovation, International,
            Opportunity, Renaissance, Select Growth, Allianz Select
            International, Target and Value Funds may enter into forward
            foreign currency exchange contracts, primarily to reduce the risks
            of adverse changes in foreign exchange rates. In addition, the
            Global Innovation, International and Allianz Select International
            Funds may buy and sell foreign currency futures contracts and
            options on foreign currencies and foreign currency futures. A
            forward foreign currency exchange contract, which involves an
            obligation to purchase or sell a specific currency at a future
            date at a price set at the time of the contract, reduces a Fund's
            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 receive for the duration of the contract. The effect on
            the value of a Fund is similar to selling securities denominated
            in one currency and purchasing securities denominated 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 to hedge 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.

57  PIMCO Funds: Multi-Manager Series
<PAGE>

             The Global Innovation, International and Allianz Select
            International Funds may also enter into these 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, a 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
            Global Innovation, International and Allianz Select International
            Funds may use one currency (or basket of currencies) to hedge
            against adverse changes in the value of another currency (or
            basket of currencies) when exchange rates between the two
            currencies are positively correlated. Each Fund will segregate
            assets determined to be liquid by PIMCO Advisors or the Fund's
            Sub-Adviser 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.

Corporate   Each Fund that may invest in fixed income securities may invest in
Debt        corporate debt securities. The Growth & Income Fund may invest up
Securities  to 10% of its assets in these securities. Corporate debt
            securities are subject to the risk of the issuer's inability to
            meet principal and interest payments on the obligation and may
            also be subject to price volatility due to factors such as
            interest rate sensitivity, market perception of the
            creditworthiness of the issuer and general market liquidity. When
            interest rates rise, the value of corporate debt securities can be
            expected to decline. Debt securities with longer durations tend to
            be more sensitive to interest rate movements than those with
            shorter durations.

Convertible Each Fund may invest in convertible securities. The Growth &
Securities  Income Fund may place particular emphasis on convertible
            securities. Convertible securities are generally preferred stocks
            and other securities, including fixed income securities and
            warrants, that are convertible into or exercisable for common
            stock at either a stated price or a stated rate. The price of a
            convertible security will normally vary in some proportion to
            changes in the price of the underlying common stock because of
            this conversion or exercise feature. However, the value of a
            convertible security may not increase or decrease as rapidly as
            the underlying common stock. A convertible security will normally
            also provide income and is subject to interest rate risk. 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. Also, a Fund may be forced to convert
            a security before it would otherwise choose, which may have an
            adverse effect on the Fund's ability to achieve its investment
            objective.

Derivatives Each Fund (except the Capital Appreciation, Mid-Cap and Small-Cap
            Value Funds) may, but is not required to, use a number of
            derivative instruments for risk management purposes or as part of
            its investment strategies. 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. A portfolio manager may
            decide not to employ any of these strategies and there is no
            assurance that any derivatives strategy used by a Fund will
            succeed. In addition, suitable derivative transactions may not be
            available in all circumstances and there can be no assurance that
            a Fund will engage in these transactions to reduce exposure to
            other risks when that would be beneficial.

             Examples of derivative instruments include options contracts,
            futures contracts, options on futures contracts and swap
            agreements. The Equity Income, Global Innovation, Growth, Growth &
            Income, Innovation, International, Opportunity, Renaissance,
            Select Growth, Allianz Select International, Target, Tax-Efficient
            Equity and Value Funds may purchase and sell (write) call and put
            options on securities, securities indexes and foreign currencies.
            Each of these Funds may purchase and sell futures contracts and
            options thereon with respect to securities, securities indexes and
            foreign currencies. The Global Innovation, Allianz Select
            International and Tax-Efficient Equity Funds may enter into swap
            agreements with respect to securities indexes. A description of
            these and other derivative instruments that the Funds may use are
            described under "Investment Objectives and Policies" in the
            Statement of Additional Information.

             A Fund's use of derivative instruments involves risks different
            from, or greater than, the risks associated with investing
            directly in securities and other more traditional investments. A
            description of various risks associated with particular derivative
            instruments is included in "Investment Objectives and Policies" in
            the Statement of Additional Information. The following provides a
            more general discussion of important risk factors relating to all
            derivative instruments that may be used by the 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

                                                                   Prospectus 58
<PAGE>

            itself, without the benefit of observing the performance of the
            derivative under all possible market conditions.

             Credit Risk The use of a derivative instrument 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.

             Leveraging 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 a 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. To limit leverage risk, each Fund will segregate
            assets determined to be liquid by PIMCO Advisors or a Sub-Adviser
            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 derivative
            instruments.

             Lack of Availability Because the markets for certain derivative
            instruments (including markets located in foreign countries) are
            relatively new and still developing, suitable derivatives
            transactions may not be available in all circumstances for risk
            management or other purposes. There is no assurance that a Fund
            will engage in derivatives transactions at any time or from time
            to time. A Fund's ability to use derivatives may also be limited
            by certain regulatory and tax considerations.

             Market and Other Risks Like most other investments, derivative
            instruments are subject to the risk that the market value of the
            instrument will change in a way detrimental to a Fund's interest.
            If a portfolio manager incorrectly forecasts the values of
            securities, currencies or interest rates or other economic factors
            in using derivatives for a Fund, the Fund might have been in a
            better position if it had not entered into the transaction at all.
            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
            other Fund investments. A Fund may also have to buy or sell a
            security at a disadvantageous time or price because the Fund is
            legally required to maintain offsetting positions or asset
            coverage in connection with certain derivatives transactions.

             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 a Fund. Also, the value of
            derivatives may not correlate perfectly, or at all, with the value
            of the assets, reference rates or indexes they are designed to
            closely track. In addition, a Fund's use of derivatives may cause
            the Fund to realize higher amounts of short-term capital gains
            (taxed at ordinary income tax rates when distributed to
            shareholders who are individuals) than if the Fund had not used
            such instruments.

Equity-     The Funds may invest in equity-linked securities. The Allianz
Linked      Select International Fund may invest up to 15% of its assets in
Securities  equity-linked securities. The International Fund may invest up to
            5% of its assets in equity-linked securities. Equity-linked
            securities are privately issued securities whose investment
            results are designed to correspond generally to the performance of
            a specified stock index or "basket" of stocks, or sometimes a
            single stock. To the extent that the Fund invests in equity-linked
            securities whose return corresponds to the performance of a
            foreign securities index or one or more of foreign stocks,
            investing in equity-linked securities will involve risks similar
            to the risks of investing in foreign equity securities. See
            "Foreign Securities" above. In addition, the Fund bears the risk
            that the issuer of an equity-linked security may default on its
            obligations under the security. Equity-linked securities may be
            considered illiquid and thus subject to the Fund's restrictions on
            investments in illiquid securities.

Credit      The Funds may invest in securities based on their credit ratings
Ratings     assigned by rating agencies such as Moody's Investors Service,
and         Inc. ("Moody's") and Standard and Poor's Ratings Services ("S&P").
Unrated     Moody's, S&P and other rating agencies are private services that
Securities  provide ratings of the credit quality of fixed income securities,
            including convertible securities. The Appendix to the Statement of
            Additional

59 PIMCO Funds: Multi-Manager Series
<PAGE>

            Information describes the various ratings assigned to fixed income
            securities by Moody's and S&P. Ratings assigned by a rating agency
            are not absolute standards of credit quality and do not evaluate
            market risk. Rating agencies may fail to make timely changes in
            credit ratings and an issuer's current financial condition may be
            better or worse than a rating indicates. A Fund will not
            necessarily sell a security when its rating is reduced below its
            rating at the time of purchase. PIMCO Advisors and the Sub-
            Advisers do not rely solely on credit ratings, and develop their
            own analysis of issuer credit quality.

             A Fund may purchase unrated securities (which are not rated by a
            rating agency) if its portfolio manager determines that the
            security is of comparable quality to a rated security that the
            Fund may purchase. Unrated securities may be less liquid than
            comparable rated securities and involve the risk that the
            portfolio manager may not accurately evaluate the security's
            comparative credit rating.

High        Securities rated lower than Baa by Moody's or lower than BBB by
Yield       S&P are sometimes referred to as "high yield securities" or "junk
Securities  bonds." The Funds, particularly the Growth & Income Fund, may
            invest in these securities. Investing in these 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,
            these securities may be subject to greater levels of interest
            rate, credit and liquidity risk, may entail greater potential
            price volatility and may be less liquid than higher-rated
            securities. These securities may be regarded as predominately
            speculative with respect to the issuer's continuing ability to
            meet principal and interest payments. They may also be more
            susceptible to real or perceived adverse economic and competitive
            industry conditions than higher-rated securities.

Loans of    For the purpose of achieving income, each Fund may lend its
Portfolio   portfolio securities to brokers, dealers, and other financial
Securities  institutions provided a number of conditions are satisfied,
            including that the loan is fully collateralized. Please see
            "Investment Objectives and Policies" in the Statement of
            Additional Information for details. When a Fund lends portfolio
            securities, its investment performance will continue to reflect
            changes in the value of the securities loaned, and the Fund will
            also receive a fee or interest on the collateral. Securities
            lending involves the risk of loss of rights in the collateral or
            delay in recovery of the collateral if the borrower fails to
            return the security loaned or becomes insolvent. A Fund may pay
            lending fees to the party arranging the loan.

Short       Each Fund may make short sales as part of its overall portfolio
Sales       management strategies or to offset a potential decline in the
            value of a security. A short sale involves the sale of a security
            that is borrowed from a broker or other institution to complete
            the sale. A Fund may only enter into short selling transactions if
            the security sold short is held in the Fund's portfolio or if the
            Fund has the right to acquire the security 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 a Fund to the
            risk that it will be required to acquire, convert or exchange
            securities to replace the borrowed securities (also known as
            "covering" the short position) at a time when the securities sold
            short have appreciated 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
Delivery    securities for a fixed price at a future date beyond normal
and         settlement time (forward commitments). When-issued transactions,
Forward     delayed delivery purchases and forward commitments involve a risk
Commitment  of loss if the value of the securities declines prior to the
Transac-    settlement date. This risk is in addition to the risk that the
tions       Fund's other assets will decline in value. Therefore, these
            transactions may result in a form of leverage and increase a
            Fund's overall investment exposure. 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 to cover these positions.

Repurchase  Each Fund may enter into repurchase agreements, in which the Fund
Agreements  purchases a security from a bank or broker-dealer that agrees to
            repurchase the security at the Fund's cost plus interest within a
            specified time. If the party agreeing to repurchase should
            default, the Fund will seek to sell the securities which it holds.
            This 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 its portfolio maintained in cash. Repurchase agreements
            maturing in more than seven days are considered illiquid
            securities.
                                                                   Prospectus
                                                                              60
<PAGE>

Reverse     Each Fund may enter into reverse repurchase agreements, subject to
Repurchase  the Fund's limitations on borrowings. A reverse repurchase
Agreements  agreement involves the sale of a security by a Fund and its
And Other   agreement to repurchase the instrument at a specified time and
Borrowings  price, and may be considered a form of borrowing for some
            purposes. A Fund will segregate assets determined to be liquid by
            PIMCO Advisors or a Sub-Adviser in accordance with procedures
            established by the Board of Trustees to cover its obligations
            under reverse repurchase agreements. 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. Reverse repurchase agreements and other
            forms of borrowings may create leveraging risk for a Fund.

Illiquid    Each Fund may invest in securities that are illiquid so long as
Securities  not more than 15% of the value of the Fund's net assets (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 held by a
            Fund, 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. Please see "Investment Objectives and Policies" in
            the Statement of Additional Information for a listing of various
            securities that are generally considered to be illiquid for these
            purposes. Restricted securities, i.e., securities subject to legal
            or contractual restrictions on resale, may be illiquid. However,
            some restricted securities (such as securities issued pursuant to
            Rule 144A under the Securities Act of 1933 and certain commercial
            paper) may be treated as liquid, although they may be less liquid
            than registered securities traded on established secondary
            markets.

Investment  The International and Allianz Select International Funds may
in Other    invest up to 10% of their assets in securities of other investment
Investment  companies, such as closed-end management investment companies, or
Companies   in pooled accounts or other investment vehicles which invest in
            foreign markets. Each of the other Funds may invest up to 5% of
            its assets in other investment companies. As a shareholder of an
            investment company, a Fund may indirectly bear service and other
            fees which are in addition to the fees the Fund pays its service
            providers.

Portfolio   With the exception of the Tax-Efficient Equity Fund, the length of
Turnover    time a Fund has held a particular security is not generally a
            consideration in investment decisions. A change in the securities
            held by a Fund is known as "portfolio turnover." Each Fund may
            engage in active and frequent trading of portfolio securities to
            achieve its investment objective and principal investment
            strategies, particularly during periods of volatile market
            movements, although the Tax-Efficient Equity Fund will generally
            attempt to limit portfolio turnover as part of its tax-efficient
            management strategies. 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 also result in realization of taxable
            capital gains, including short-term capital gains (which are taxed
            at ordinary income tax rates when distributed to shareholders who
            are individuals). The trading costs and tax effects associated
            with portfolio turnover may adversely affect a Fund's performance.
            Funds, such as the Growth & Income, Select Growth and Allianz
            Select International Funds, that have recently changed Sub-
            Advisers and/or investment objectives and policies may experience
            increased portfolio turnover due to the differences between the
            Funds' previous and current investment objectives and policies and
            portfolio management strategies.

Changes     The investment objective of each of the Global Innovation, Growth,
in          Growth & Income, Innovation, International, Opportunity,
Investment  Renaissance, Select Growth, Allianz Select International, Target
Objectives  and Tax-Efficient Equity Funds described in this Prospectus may be
and         changed by the Board of Trustees without shareholder approval. The
Policies    investment objective of each other Fund is fundamental and may not
            be changed without shareholder approval. Unless otherwise stated
            in the Statement of Additional Information, all investment
            policies of the Funds may be changed by the Board of Trustees
            without shareholder approval. If there is a change in a Fund's
            investment objective or policies, 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.

61 PIMCO Funds: Multi-Manager Series
<PAGE>

New and     In addition to the risks described under "Summary of Principal
Smaller-    Risks" above and in this section, several of the Funds are newly
Sized       formed and therefore have limited or no performance history for
Funds       investors to evaluate. Also, it is possible that newer Funds and
            smaller-sized Funds may invest in securities offered in initial
            public offerings and other types of transactions (such as private
            placements) which, because of the Funds' size, may have a
            disproportionate impact on the Funds' performance results. The
            Funds would not necessarily have achieved the same performance
            results if their aggregate net assets had been greater.

Percentage  Unless otherwise stated, all percentage limitations on Fund
Investment  investments listed in this Prospectus will apply at the time of
Limitations investment. A Fund would not violate these limitations unless an
            excess or deficiency occurs or exists immediately after and as a
            result of an investment.

Other       The Funds may invest in other types of securities and use a
Investments variety of investment techniques and strategies which are not
and         described in this Prospectus. These securities and techniques may
Techniques  subject the Funds to additional risks. Please see the Statement of
            Additional Information for additional information about the
            securities and investment techniques described in this Prospectus
            and about additional securities and techniques that may be used by
            the Funds.

                                                                   Prospectus 62
<PAGE>

            Financial Highlights

            The financial highlights table is intended to help you understand
            the financial performance of Class A, Class B and Class C shares
            of each Fund for the past 5 years or, if the class is less than 5
            years old, since the class of shares was first offered. Certain
            information reflects financial results for a single Fund share.
            The total returns in the table represent the rate that an investor
            would have earned or lost on an investment in a particular class
            of shares of a Fund, assuming reinvestment of all dividends and
            distributions. This information has been audited by
            PricewaterhouseCoopers LLP, whose report, along with each Fund's
            financial statements, are included in the Trust's annual report to
            shareholders. The annual report is incorporated by reference in
            the Statement of Additional Information and is available free of
            charge upon request from the Distributor.

             The information provided for each of the Growth, Innovation,
            International, Opportunity, Renaissance and Target Funds reflects
            the operational history of a corresponding series of PIMCO
            Advisors Funds which reorganized as a series of the Trust on
            January 17, 1997. In connection with the reorganizations, these
            Funds changed their fiscal year ends from September 30 to June 30.
            The expense ratios provided for these Funds for periods prior to
            January 17, 1997 reflect fee arrangements of PIMCO Advisors Funds
            previously in effect which differ from the current fee
            arrangements of the Trust. The Growth & Income and Allianz Select
            International Funds did not offer Class A, B or C shares during
            the periods ended June 30, 2000.

<TABLE>
<CAPTION>
 Year or                                         Net Realized/                  Dividends  Dividends in  Distributions
 Period           Net Asset Value Net            Unrealized     Total Income    From Net   Excess of Net From Net
 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>
Capital Appreci-
 ation Fund
 Class A
 06/30/00              $26.65        $(0.03)(a)       $5.34 (a)       $5.31        $(0.01)     $(0.01)         $(5.00)
 06/30/99               26.01          0.06 (a)        2.33 (a)        2.39         (0.10)       0.00           (1.65)
 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
 06/30/00               26.29         (0.22)(a)        5.23 (a)        5.01          0.00        0.00           (5.00)
 06/30/99               25.75         (0.13)(a)        2.32 (a)        2.19          0.00        0.00           (1.65)
 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
 06/30/00               26.31         (0.22)(a)        5.25 (a)        5.03          0.00        0.00           (5.00)
 06/30/99               25.78         (0.13)(a)        2.31 (a)        2.18          0.00        0.00           (1.65)
 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
Equity Income
 Fund (i)
 Class A
 06/30/00              $15.58         $0.33 (a)      $(2.42)(a)      $(2.09)       $(0.36)      $0.00          $(0.48)
 06/30/99               16.04          0.39 (a)        1.29 (a)        1.68         (0.38)       0.00           (1.76)
 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
 06/30/00               15.50          0.24 (a)       (2.40)(a)       (2.16)        (0.27)       0.00           (0.48)
 06/30/99               15.99          0.28 (a)        1.27 (a)        1.55         (0.28)       0.00           (1.76)
 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
 06/30/00               15.52          0.24 (a)       (2.40)(a)       (2.16)        (0.27)       0.00           (0.48)
 06/30/99               16.01          0.27 (a)        1.27 (a)        1.54         (0.27)       0.00           (1.76)
 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
Global Innova-
 tion
 Class A
 12/31/99-
  06/30/00             $10.00        $(0.03)(a)       $8.96 (a)       $8.93         $0.00       $0.00           $0.00
 Class B
 03/31/00-
  06/30/00              20.17         (0.07)(a)       (1.19)(a)       (1.26)        $0.00       $0.00           $0.00
 Class C
 03/31/00-
  06/30/00              20.17         (0.07)(a)       (1.19)(a)       (1.26)        $0.00       $0.00           $0.00
Growth Fund (ii)
 Class A
 06/30/00              $34.12        $(0.29)(a)      $10.77 (a)      $10.48         $0.00       $0.00          $(5.66)
 06/30/99               32.62         (0.14)(a)        5.56 (a)        5.42          0.00        0.00           (3.92)
 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)
 Class B
 06/30/00               31.15         (0.51)(a)        9.68 (a)        9.17          0.00        0.00           (5.66)
 06/30/99               30.34         (0.35)(a)        5.08 (a)        4.73          0.00        0.00           (3.92)
 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)

<CAPTION>
 Year or          Distributions
 Period           in Excess of
 Ended            Net Realized
                  Capital Gains
-------------------------------------------------------------------------------------------------------------------------
<S>               <C>
Capital Appreci-
 ation Fund
 Class A
 06/30/00              $0.00
 06/30/99              $0.00
 06/30/98               0.00
 01/20/97-
  06/30/97              0.00
 Class B
 06/30/00               0.00
 06/30/99               0.00
 06/30/98               0.00
 01/20/97-
  06/30/97              0.00
 Class C
 06/30/00               0.00
 06/30/99               0.00
 06/30/98               0.00
 01/20/97-
  06/30/97              0.00
Equity Income
 Fund (i)
 Class A
 06/30/00             $(2.16)
 06/30/99               0.00
 06/30/98               0.00
 01/20/97-
  06/30/97              0.00
 Class B
 06/30/00              (2.16)
 06/30/99               0.00
 06/30/98               0.00
 01/20/97-
  06/30/97              0.00
 Class C
 06/30/00              (2.16)
 06/30/99               0.00
 06/30/98               0.00
 01/20/97-
  06/30/97              0.00
Global Innova-
 tion
 Class A
 12/31/99-
  06/30/00             $0.00
 Class B
 03/31/00-
  06/30/00             $0.00
 Class C
 03/31/00-
  06/30/00             $0.00
Growth Fund (ii)
 Class A
 06/30/00              $0.00
 06/30/99               0.00
 06/30/98               0.00
 10/01/96-
  06/30/97              0.00
 09/30/96               0.00
 Class B
 06/30/00               0.00
 06/30/99               0.00
 06/30/98               0.00
 10/01/96-
  06/30/97              0.00
 09/30/96               0.00
</TABLE>
-------
  *   Annualized
 (a)  Per share amounts based upon average number of shares outstanding during
      the period.
 (i)  The information provided for the Equity Income Fund reflects the results
      of operations under the Fund's former Sub-Adviser through May 8, 2000; the
      Fund would not necessarily have achieved the results shown above under its
      current investment management arrangements.
 (ii) The information provided for the Growth Fund reflects results of
      operations under the Fund's former Sub-Adviser through March 6, 2000; the
      Fund would not necessarily have achieved the performance results shown
      above under its current investment management arrangements.

63 PIMCO Funds: Multi-Manager Series
<PAGE>



<TABLE>
<CAPTION>
                                                                                     Ratio of Net
                                                                     Ratio of         Investment
Tax Basis                 Net Asset                                 Expenses to    Income (Loss) to
eturn ofR      Total     Value End of               Net Assets End  Average Net      Average Net      Portfolio
Capital    Distributions    Period    Total Return of Period (000s)   Assets            Assets      Turnover Rate
-----------------------------------------------------------------------------------------------------------------

<S>        <C>           <C>          <C>          <C>              <C>            <C>              <C>

   $0.00       $(5.02)      $26.94        22.73%        $91,927          1.11%           (0.10)%           119%
    0.00        (1.75)       26.65        10.14          91,296          1.10             0.24             120
    0.00        (1.77)       26.01        32.39          72,803          1.10             0.27              75
    0.00         0.00        21.16         9.58           6,534          1.11*            0.59*             87

    0.00        (5.00)       26.30        21.79          66,044          1.86            (0.86)            119
    0.00        (1.65)       26.29         9.39          55,094          1.85            (0.52)            120
    0.00        (1.75)       25.75        31.39          40,901          1.85            (0.47)             75
    0.00         0.00        21.10         9.27           3,022          1.85*           (0.26)*            87

    0.00        (5.00)       26.34        21.85          82,864          1.86            (0.86)            119
    0.00        (1.65)       26.31         9.34          81,097          1.85            (0.52)            120
    0.00        (1.73)       25.78        31.40          71,481          1.85            (0.49)             75
    0.00         0.00        21.10         9.27          13,093          1.86*           (0.23)*            87


   $0.00       $(3.00)      $10.49       (13.17)%       $11,434          1.12%            2.77%            114%
    0.00        (2.14)       15.58        12.26          17,342          1.10             2.64              76
    0.00        (2.47)       16.04        21.35          12,954          1.11             2.39              45
    0.00        (0.18)       15.39        11.77           1,756          1.13*            2.85*             45

    0.00        (2.91)       10.43       (13.79)         12,903          1.87             2.01             114
    0.00        (2.04)       15.50        11.35          21,732          1.85             1.89              76
    0.00        (2.37)       15.99        20.47          15,178          1.85             1.63              45
    0.00        (0.16)       15.37        11.45           2,561          1.87*            2.11*             45

    0.00        (2.91)       10.45       (13.78)         13,929          1.87             1.99             114
    0.00        (2.03)       15.52        11.28          26,016          1.85             1.86              76
    0.00        (2.36)       16.01        20.51          23,122          1.85             1.60              45
    0.00        (0.16)       15.37        11.42           6,624          1.87*            2.15*             45


   $0.00        $0.00       $18.93        89.30%        $31,998          1.61%(b)*       (0.58)*%          131%

   $0.00        $0.00        18.91        (6.25)         25,375          2.60 (c)*       (1.70)*           131

   $0.00        $0.00        18.91        (6.25)         46,826          2.60 (c)*       (1.70)*           131


   $0.00       $(5.66)      $38.94        32.49%       $255,744          1.61%           (0.78)%            72%
    0.00        (3.92)       34.12        18.65         227,638          1.16            (0.44)            131
    0.00        (4.32)       32.62        41.03         180,119          1.16            (0.27)            123
    0.00        (3.51)       27.03        15.93         147,276          1.11*            0.13*             94
    0.00        (2.93)       26.58        16.11         151,103          1.11             0.24             104

    0.00        (5.66)       34.66        31.31         213,627          1.91            (1.53)             72
    0.00        (3.92)       31.15        17.72         133,850          1.90            (1.19)            131
    0.00        (4.32)       30.34        39.97          80,719          1.91            (1.02)            123
    0.00        (3.51)       25.59        15.32          55,626          1.86*           (0.62)*            94
    0.00        (2.93)       25.46        15.22          37,256          1.86            (0.51)            104
</TABLE>
-------
 (b) If the investment manager had not reimbursed expenses, the ratio of
     operating expenses to average net assets would have been 1.67% for the
     period ended June 30, 2000.
 (c) If the investment manager had not reimbursed expenses, the ratio of
     operating expenses to average net assets would have been 2.70% for the
     period ended June 30, 2000.
                                                                   Prospectus
                                                                              64
<PAGE>

Financial Highlights (continued)

<TABLE>
<CAPTION>
                                                 Net Realized/                  Dividends  Dividends in  Distributions
 Year or          Net Asset Value Net            Unrealized     Total Income    From Net   Excess of Net From Net
  Period          Beginning       Investment     Gain (Loss) on From Investment Investment Investment    Realized Capital
  Ended           of Period       Income (Loss)  Investments    Operations      Income     Income        Gains
-------------------------------------------------------------------------------------------------------------------------
<S>               <C>             <C>            <C>            <C>             <C>        <C>           <C>
Growth Fund
 (Cont.)
 Class C
 06/30/00              $31.15        $(0.51)(a)      $ 9.68 (a)      $ 9.17        $0.00        $0.00          $(5.66)
 06/30/99               30.33         (0.35)(a)        5.09 (a)        4.74         0.00         0.00           (3.92)
 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)
Innovation Fund
 (iii)
 Class A
 06/30/00              $37.46        $(0.58)(a)      $41.80 (a)      $41.22        $0.00        $0.00          $(6.39)
 06/30/99               24.28         (0.28)(a)       14.72 (a)       14.44         0.00         0.00           (1.26)
 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)
 Class B
 06/30/00               36.09         (1.01)(a)       40.37 (a)       39.36         0.00         0.00           (6.39)
 06/30/99               23.60         (0.49)(a)       14.24 (a)       13.75         0.00         0.00           (1.26)
 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)
 Class C
 06/30/00               36.08         (1.00)(a)       40.35 (a)       39.35         0.00         0.00           (6.39)
 06/30/99               23.59         (0.48)(a)       14.23 (a)       13.75         0.00         0.00           (1.26)
 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)
International
 Fund (iv)
 Class A
 06/30/00              $12.45        $ 0.03 (a)      $ 1.46 (a)      $ 1.49        $0.00        $0.00          $(1.74)
 06/30/99               14.33          0.01 (a)       (0.74)(a)       (0.73)        0.00         0.00           (1.15)
 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
 Class B
 06/30/00               11.51         (0.06)(a)        1.25 (a)        1.19         0.00         0.00           (1.74)
 06/30/99               13.46         (0.08)(a)       (0.72)(a)       (0.80)        0.00         0.00           (1.15)
 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
 Class C
 06/30/00               11.50         (0.09)(a)        1.27 (a)        1.18         0.00         0.00           (1.74)
 06/30/99               13.45         (0.09)(a)       (0.71)(a)       (0.80)        0.00         0.00           (1.15)
 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
Mid-Cap Fund (v)
 Class A
 06/30/00              $22.82        $(0.01)(a)      $ 7.82 (a)      $ 7.81       $(0.02)      $(0.02)         $(0.02)
 06/30/99               24.00          0.03 (a)       (0.13)(a)       (0.10)       (0.01)        0.00           (1.07)
 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
 06/30/00               22.43         (0.20)(a)        7.66 (a)        7.46         0.00         0.00           (0.02)
 06/30/99               23.77         (0.13)(a)       (0.14)(a)       (0.27)        0.00         0.00           (1.07)
 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
<CAPTION>
 Year or          Distributions
  Period          in Excess of
  Ended           Net Realized
                  Capital Gains
-------------------------------------------------------------------------------------------------------------------------
<S>               <C>
Growth Fund
 (Cont.)
 Class C
 06/30/00             $ 0.00
 06/30/99               0.00
 06/30/98               0.00
 10/01/96-
  06/30/97              0.00
 09/30/96               0.00
Innovation Fund
 (iii)
 Class A
 06/30/00             $ 0.00
 06/30/99               0.00
 06/30/98              (0.18)
 10/01/96-
  06/30/97              0.00
 9/30/96                0.00
 Class B
 06/30/00               0.00
 06/30/99               0.00
 06/30/98              (0.18)
 10/01/96-
  06/30/97              0.00
 9/30/96                0.00
 Class C
 06/30/00               0.00
 06/30/99               0.00
 06/30/98              (0.18)
 10/01/96-
  06/30/97              0.00
 9/30/96                0.00
International
 Fund (iv)
 Class A
 06/30/00             $ 0.00
 06/30/99               0.00
 06/30/98              (0.30)
 10/01/96-
  06/30/97              0.00
 9/30/96                0.00
 Class B
 06/30/00               0.00
 06/30/99               0.00
 06/30/98              (0.30)
 10/01/96-
  06/30/97              0.00
 9/30/96                0.00
 Class C
 06/30/00               0.00
 06/30/99               0.00
 06/30/98              (0.30)
 10/01/96-
  06/30/97              0.00
 9/30/96                0.00
Mid-Cap Fund (v)
 Class A
 06/30/00             $ 0.00
 06/30/99               0.00
 06/30/98               0.00
 01/13/97-
  06/30/97              0.00
 Class B
 06/30/00               0.00
 06/30/99               0.00
 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.
 (b)   Ratio of expenses to average net assets excluding interest expense is
       1.46%.
 (c)   Ratio of expenses to average net assets excluding interest expense is
       2.21%.
 (iii) The information provided for the Innovation Fund reflects results of
       operations under the Fund's former Sub-Adviser through March 6, 1999;
       the Fund would not necessarily have achieved the performance results
       shown above under its current investment management arrangements.
 (iv)  The information provided for the International Fund reflects results of
       operations under the Fund's former Sub-Advisers through November 15,
       1994; the Fund would not necessarily have achieved the performance
       results shown above under its current investment management
       arrangements.
 (v)  Formerly the Mid-Cap Growth Fund.

   PIMCO Funds: Multi-Manager Series
65
<PAGE>


<TABLE>
<CAPTION>
                                                                                      Ratio of Net
                                                                       Ratio of        Investment
Tax Basis                   Net Asset                                 Expenses to   Income (Loss) to
Return of        Total     Value End of               Net Assets End  Average Net     Average Net      Portfolio
 Capital     Distributions    Period    Total Return of Period (000s)   Assets           Assets      Turnover Rate
------------------------------------------------------------------------------------------------------------------
 <S>         <C>           <C>          <C>          <C>              <C>           <C>              <C>

   $ 0.00        $(5.66)       $34.66       31.31 %      $2,416,067       1.91%           (1.53)%            72%
     0.00         (3.92)        31.15       17.76         2,064,450       1.90            (1.18)            131
     0.00         (4.32)        30.33       39.99         1,853,002       1.91            (1.02)            123
     0.00         (3.51)        25.58       15.27         1,514,432       1.86*           (0.61)*            94
     0.00         (2.93)        25.46       15.22         1,450,216       1.86            (0.51)            104


   $ 0.00        $(6.39)       $72.29      115.04 %      $1,408,455       1.30%           (0.91)%           186%
     0.00         (1.26)        37.46       61.36           313,946       1.30            (0.90)            119
     0.00         (1.17)        24.28       48.10            85,800       1.31            (0.94)            100
     0.00         (0.26)        17.43        2.41            56,215       1.28*           (0.68)*            80
     0.00         (0.35)        17.26       19.86            50,067       1.31            (0.61)            123

     0.00         (6.39)        69.06      114.17         1,680,792       2.05            (1.66)            186
     0.00         (1.26)        36.09       60.17           351,876       2.05            (1.64)            119
     0.00         (1.17)        23.60       46.95            81,130       2.06            (1.69)            100
     0.00         (0.26)        17.10        1.79            51,472       2.03*           (1.43)*            80
     0.00         (0.35)        17.04       18.99            33,778       2.06            (1.36)            123

     0.00         (6.39)        69.04      114.17         2,275,811       2.05            (1.66)            186
     0.00         (1.26)        36.08       60.20           580,251       2.05            (1.65)            119
     0.00         (1.17)        23.59       46.97           219,258       2.06            (1.69)            100
     0.00         (0.26)        17.09        1.73           162,889       2.03*           (1.43)*            80
     0.00         (0.35)        17.04       19.08           137,752       2.06            (1.36)            123

   $ 0.00        $(1.74)       $12.20       11.85 %      $   12,452       1.52%(b)         0.26%             58%
     0.00         (1.15)        12.45       (4.31)           18,865       1.55 (b)         0.05              55
     0.00         (1.12)        14.33        9.95            12,510       1.48             0.41              60
     0.00         (0.39)        14.26       12.82            18,287       1.51*            0.58*             59
     0.00          0.00         13.03        6.89            20,056       1.41             0.49             110

     0.00         (1.74)        10.96       10.00            10,176       2.28 (c)        (0.55)             58
     0.00         (1.15)        11.51       (5.15)            9,478       2.29 (c)        (0.67)             55
     0.00         (1.12)        13.46        9.17             8,956       2.22            (0.37)             60
     0.00         (0.39)        13.56       12.17             8,676       2.26*            0.18*             59
     0.00          0.00         12.48        6.21             5,893       2.16            (0.26)            110

     0.00         (1.74)        10.94        9.91            92,220       2.28 (c)        (0.77)             58
     0.00         (1.15)        11.50       (5.15)          101.320       2.30 (c)        (0.75)             55
     0.00         (1.12)        13.45        9.18           132,986       2.22            (0.43)             60
     0.00         (0.39)        13.55       12.18           168,446       2.25*           (0.25)*            59
     0.00          0.00         12.47        6.13           203,544       2.16            (0.26)            110



   $ 0.00        $(0.06)       $30.57       34.28 %      $  156,949       1.11%           (0.05)%           164%
     0.00         (1.08)        22.82       (0.13)          124,680       1.10             0.15              85
     0.00         (1.37)        24.00       25.71            57,164       1.11             0.07              66
     0.00          0.00         20.24       11.58            12,184       1.11*            0.17*             82

     0.00         (0.02)       $29.87       33.27            88,648       1.86            (0.80)            164
     0.00         (1.07)        22.43       (0.86)           84,698       1.85            (0.62)             85
     0.00         (1.33)        23.77       24.76            84,535       1.86            (0.68)             66
     0.00          0.00         20.17       11.19            28,259       1.86*           (0.58)*            82
</TABLE>
                                                                   Prospectus 66
<PAGE>

Financial Highlights (continued)

<TABLE>
<CAPTION>
                                                 Net Realized/                  Dividends  Dividends in  Distributions
 Year or          Net Asset Value Net            Unrealized     Total Income    From Net   Excess of Net From Net
  Period          Beginning       Investment     Gain (Loss) on From Investment Investment Investment    Realized Capital
  Ended           of Period       Income (Loss)  Investments    Operations      Income     Income        Gains
-------------------------------------------------------------------------------------------------------------------------
<S>               <C>             <C>            <C>            <C>             <C>        <C>           <C>
Mid-Cap Fund
 (Cont.)
 Class C
 06/30/00              $22.44        $(0.20)(a)      $ 7.66 (a)      $ 7.46        $0.00        $0.00          $(0.02)
 06/30/99               23.77         (0.13)(a)       (0.13)(a)       (0.26)        0.00         0.00           (1.07)
 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
Opportunity Fund
 (vi)
 Class A
 06/30/00              $26.96        $(0.25)(a)      $12.75 (a)      $12.50        $0.00        $0.00          $(7.88)
 06/30/99               31.33         (0.21)(a)        0.46 (a)        0.25         0.00         0.00           (4.62)
 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)
 Class B
 06/30/00               24.20         (0.43)(a)       11.32 (a)       10.89         0.00         0.00           (7.88)
 03/31/99-
  06/30/99              21.40         (0.09)           2.89            2.80         0.00         0.00            0.00
 Class C
 06/30/00               24.19         (0.42)(a)       11.33 (a)       10.91         0.00         0.00           (7.88)
 06/30/99               28.86         (0.37)(a)        0.32 (a)       (0.05)        0.00         0.00           (4.62)
 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)
Renaissance Fund
 (vii)
 Class A
 06/30/00              $18.21         $0.06 (a)      $ 0.13 (a)      $ 0.19        $0.00        $0.00          $(2.59)
 06/30/99               19.10         (0.01)(a)        1.45 (a)        1.44         0.00         0.00           (2.33)
 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)
 Class B
 06/30/00               17.99         (0.07)(a)        0.13 (a)        0.06         0.00         0.00           (2.59)
 06/30/99               19.06         (0.13)(a)        1.39 (a)        1.26         0.00         0.00           (2.33)
 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)
 Class C
 06/30/00               17.91         (0.07)(a)        0.13 (a)        0.06         0.00         0.00           (2.59)
 06/30/99               18.96         (0.13)(a)        1.41 (a)        1.28         0.00         0.00           (2.33)
 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)
Select Growth
 Fund (viii)
 Class A
 03/31/00-
  06/30/00             $23.25        $(0.00)(a)       $0.74 (a)       $0.74        $0.00        $0.00           $0.00
 Class B
 03/31/00-
  06/30/00              23.25         (0.06)(a)        0.77 (a)        0.71         0.00         0.00            0.00
 Class C
 03/31/00-
  06/30/00              23.25         (0.05)(a)        0.76 (a)        0.71         0.00         0.00            0.00
<CAPTION>
                  Distributions
 Year or          in Excess of
  Period          Net Realized
  Ended           Capital Gains
-------------------------------
<S>               <C>
Mid-Cap Fund
 (Cont.)
 Class C
 06/30/00              $0.00
 06/30/99               0.00
 06/30/98               0.00
 01/13/97-
  06/30/97              0.00
Opportunity Fund
 (vi)
 Class A
 06/30/00              $0.00
 06/30/99               0.00
 06/30/98               0.00
 10/01/96-
  06/30/97              0.00
 09/30/96               0.00
 Class B
 06/30/00               0.00
 03/31/99-
  06/30/99              0.00
 Class C
 06/30/00               0.00
 06/30/99               0.00
 06/30/98               0.00
 10/01/96-
  06/30/97              0.00
 09/30/96               0.00
Renaissance Fund
 (vii)
 Class A
 06/30/00             $(0.86)
 06/30/99               0.00
 06/30/98               0.00
 10/01/96-
  06/30/97              0.00
 09/30/96               0.00
 Class B
 06/30/00              (0.86)
 06/30/99               0.00
 06/30/98               0.00
 10/01/96-
  06/30/97              0.00
 09/30/96               0.00
 Class C
 06/30/00              (0.86)
 06/30/99               0.00
 06/30/98               0.00
 10/01/96-
  06/30/97              0.00
 09/30/96               0.00
Select Growth
 Fund (viii)
 Class A
 03/31/00-
  06/30/00             $0.00
 Class B
 03/31/00-
  06/30/00              0.00
 Class C
 03/31/00-
  06/30/00              0.00
</TABLE>
-------
 *     Annualized
(a)    Per share amounts based upon average number of shares outstanding during
       the period.
(vi)   The information provided for the Opportunity Fund reflects results of
       operations under the Fund's former Sub-Adviser through March 6, 1999;
       the Fund would not necessarily have achieved the performance results
       shown above under its current investment management arrangements.
(vii)  The information provided for the Renaissance Fund reflects results of
       operations under the Fund's former Sub-Adviser through May 7, 1999; the
       Fund would not necessarily have achieved the performance results shown
       above under its current investment management arrangements.
(viii) Formerly the PIMCO Core Equity Fund. The Fund changed its investment
       objective and policies on April 1, 2000; the performance results shown
       above would not necessarily have been achieved had the Fund's current
       objective and policies been in effect during the periods shown. In
       addition, the performance results shown above reflect the Fund's
       advisory fee level in effect prior to April 1, 2000; these results
       would have been lower had the Fund's current advisory fee level then
       been in effect.

67  PIMCO Funds: Multi-Manager Series
<PAGE>


<TABLE>
<CAPTION>
                                                                                   Ratio of Net
                                                                       Ratio of    Investment
   Tax Basis                Net Asset                                  Expenses to Income to
   Return of  Total         Value End of              Net Assets End   Average Net Average Net  Portfolio
   Capital    Distributions Period       Total Return of Period (000s) Assets      Assets       Turnover Rate
-------------------------------------------------------------------------------------------------------------
 <S>          <C>           <C>          <C>          <C>              <C>         <C>          <C>


    $0.00         $(0.02)       $29.88       33.25 %      $104,082         1.86%       (0.80)%         164%
     0.00          (1.07)        22.44       (0.82)        112,507         1.85        (0.63)           85
     0.00          (1.33)        23.77       24.70         140,438         1.86        (0.68)           66
     0.00           0.00         20.18       11.25          53,686         1.86*       (0.58)*          82



    $0.00         $(7.88)       $31.58       50.77 %      $142,064         1.31%       (0.81)%         254%
     0.00          (4.62)        26.96        3.98         121,507         1.31        (0.86)          175
     0.00          (1.94)        31.33       13.87         200,935         1.31        (0.88)           86
     0.00          (4.91)        29.35       (8.87)        213,484         1.25*       (0.12)*          69
     0.00          (7.73)        37.36       18.35         134,859         1.13        (0.32)           91

     0.00          (7.88)        27.21       49.78          28,145         2.06        (1.57)          254
     0.00           0.00         24.20       13.08             251         2.03*       (1.65)*         175

     0.00          (7.88)        27.22       49.88         401,118         2.06        (1.57)          254
     0.00          (4.62)        24.19        3.20         308,877         2.06        (1.62)          175
     0.00          (1.94)        28.86       13.01         500,011         2.06        (1.63)           86
     0.00          (4.91)        27.38       (9.40)        629,446         1.97*       (0.95)*          69
     0.00          (7.73)        35.38       17.47         800,250         1.88        (1.07)           91



    $0.00         $(3.45)       $14.95        3.36 %      $ 68,433         1.25%        0.36 %         133%
     0.00          (2.33)        18.21        9.94          90,445         1.26        (0.04)          221
     0.00          (3.61)        19.10       30.98          85,562         1.26         0.35           192
     0.00          (2.37)        17.73       27.53          33,606         1.23*        0.95*          131
     0.00          (1.08)        16.08       22.37          20,631         1.25         1.60           203

     0.00          (3.45)        14.60        2.59          89,621         2.00        (0.45)          133
     0.00          (2.33)        17.99        8.94         126,576         2.00        (0.78)          221
     0.00          (3.55)        19.06       29.99         100,688         2.01        (0.39)          192
     0.00          (2.30)        17.77       26.88          37,253         1.97*        0.20*          131
     0.00          (0.93)        16.12       21.54          15,693         2.00         0.85           203
     0.00          (3.45)        14.52        2.60         311,519         2.00        (0.45)          133%
     0.00          (2.33)        17.91        9.12         442,049         2.00        (0.79)          221
     0.00          (3.54)        18.96       29.98         469,797         2.01        (0.37)          192
     0.00          (2.29)        17.69       26.86         313,226         1.97*        0.21*          131
     0.00          (0.94)        16.05       21.52         230,058         2.00         0.85           203



    $0.00          $0.00        $23.99        3.18 %        $7,841         1.25%*      (0.01)%*        170%

     0.00           0.00         23.96        3.05           2,173         2.00*       (0.96)*         170

     0.00           0.00         23.96        3.05           4,196         2.00*       (0.90)*         170
</TABLE>
                                                                   Prospectus 68
<PAGE>

Financial Highlights (continued)
<TABLE>
<CAPTION>
 Year or                                         Net Realized/                   Dividends  Dividends in  Distributions
  Period          Net Asset Value Net            Unrealized      Total Income    From Net   Excess of Net From Net
  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>
Small-Cap Value
 Fund
 Class A
 06/30/00              $15.93        $ 0.32 (a)      $ (1.81)(a)     $ (1.49)      $(0.32)       $0.00          $ 0.00
 06/30/99               17.58          0.26 (a)        (1.29)(a)       (1.03)       (0.17)        0.00            0.00
 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
 06/30/00               15.79          0.21 (a)        (1.79)(a)       (1.58)       (0.17)        0.00            0.00
 06/30/99               17.43          0.14 (a)        (1.27)(a)       (1.13)       (0.06)        0.00            0.00
 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
 06/30/00               15.82          0.21 (a)        (1.79)(a)       (1.58)       (0.18)        0.00            0.00
 06/30/99               17.44          0.14 (a)        (1.27)(a)       (1.13)       (0.04)        0.00            0.00
 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
Target Fund (ix)
 Class A
 06/30/00              $17.72        $(0.23)(a)       $15.45 (a)      $15.22       $ 0.00        $0.00          $(1.80)
 03/31/99-
  06/30/99              16.35         (0.09)(a)         2.44 (a)        2.35         0.00         0.00           (0.98)
 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)
 Class B
 06/30/00               16.44         (0.39)(a)        14.35 (a)       13.96         0.00         0.00           (1.80)
 06/30/99               15.34         (0.19)(a)         2.27 (a)        2.08         0.00         0.00           (0.98)
 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)
 Class C
 06/30/00               16.43         (0.38)(a)        14.34 (a)       13.96         0.00         0.00           (1.80)
 06/30/99               15.34         (0.19)(a)         2.26 (a)        2.07         0.00         0.00           (0.98)
 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)
Tax-Efficient
 Equity Fund
 Class A
 06/30/00              $11.59        $ 0.00 (a)      $  0.65 (a)      $ 0.65       $ 0.00        $0.00          $ 0.00
 07/10/98-
  06/30/99              10.00          0.03 (a)         1.56 (a)        1.59         0.00         0.00            0.00
 Class B
 06/30/00               11.51         (0.09)(a)         0.64 (a)        0.55         0.00         0.00            0.00
 07/10/98-
  06/30/99              10.00         (0.05)(a)         1.56 (a)        1.51         0.00         0.00            0.00
 Class C
 06/30/00               11.51         (0.09)(a)         0.64 (a)        0.55         0.00         0.00            0.00
 07/10/98-
  06/30/99              10.00         (0.05)(a)         1.56 (a)        1.51         0.00         0.00            0.00
Value Fund (x)
 Class A
 06/30/00              $15.29        $ 0.22 (a)      $ (1.33)(a)     $ (1.11)      $(0.23)       $0.00          $(0.57)
 06/30/99               15.64          0.24 (a)         1.35 (a)        1.59        (0.22)        0.00           (1.72)
 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
 06/30/00               15.26          0.13 (a)        (1.33)(a)       (1.20)       (0.13)        0.00           (0.57)
 06/30/99               15.63          0.12 (a)         1.35 (a)        1.47        (0.12)        0.00           (1.72)
 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
 06/30/00               15.26          0.13 (a)        (1.33)(a)       (1.20)       (0.13)        0.00           (0.57)
 06/30/99               15.63          0.12 (a)         1.35 (a)        1.47        (0.12)        0.00           (1.72)
 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
<CAPTION>
 Year or          Distributions
  Period          in Excess of
  Ended           Net Realized
                  Capital Gains
-------------------------------
<S>               <C>
Small-Cap Value
 Fund
 Class A
 06/30/00             $ 0.00
 06/30/99              (0.45)
 06/30/98               0.00
 01/20/97-
  06/30/97              0.00
 Class B
 06/30/00               0.00
 06/30/99              (0.45)
 06/30/98               0.00
 01/20/97-
  06/30/97              0.00
 Class C
 06/30/00               0.00
 06/30/99              (0.45)
 06/30/98               0.00
 01/20/97-
  06/30/97              0.00
Target Fund (ix)
 Class A
 06/30/00             $ 0.00
 03/31/99-
  06/30/99              0.00
 06/30/98               0.00
 10/01/96-
  06/30/97              0.00
 09/30/96               0.00
 Class B
 06/30/00               0.00
 06/30/99               0.00
 06/30/98               0.00
 10/01/96-
  06/30/97              0.00
 09/30/96               0.00
 Class C
 06/30/00               0.00
 06/30/99               0.00
 06/30/98               0.00
 10/01/96-
  06/30/97              0.00
 09/30/96               0.00
Tax-Efficient
 Equity Fund
 Class A
 06/30/00             $ 0.00
 07/10/98-
  06/30/99              0.00
 Class B
 06/30/00               0.00
 07/10/98-
  06/30/99              0.00
 Class C
 06/30/00               0.00
 07/10/98-
  06/30/99              0.00
Value Fund (x)
 Class A
 06/30/00             $(2.00)
 06/30/99               0.00
 06/30/98               0.00
 01/13/97-
  06/30/97              0.00
 Class B
 06/30/00              (2.00)
 06/30/99               0.00
 06/30/98               0.00
 01/13/97-
  06/30/97              0.00
 Class C
 06/30/00              (2.00)
 06/30/99               0.00
 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.
(ix) The information provided for the Target Fund reflects results of
operations under the Fund's former Sub-Adviser through March 6, 1999; the Fund
would not necessarily have achieved the performance results shown above under
its current investment management arrangements.
(x)The information provided for the Value Fund reflects the results of
operations under the Fund's former Sub-Adviser through May 8, 2000; the Fund
would not necessarily have achieved the results shown above under its current
investment management arrangements.

69  PIMCO Funds: Multi-Manager Series
<PAGE>


<TABLE>
<CAPTION>
                                                                                    Ratio of Net
                                                                       Ratio of      Investment
Tax Basis                   Net Asset                                 Expenses to Income (Loss) to
Return of        Total     Value End of               Net Assets End  Average Net   Average Net      Portfolio
 Capital     Distributions    Period    Total Return of Period (000s)   Assets         Assets      Turnover Rate
----------------------------------------------------------------------------------------------------------------
 <S>         <C>           <C>          <C>          <C>              <C>         <C>              <C>
    $0.00        $(0.32)       $14.12       (9.26)%       $114,347        1.26%          2.28 %            55%
     0.00         (0.62)        15.93       (5.50)         107,569        1.25           1.74              60
     0.00         (0.89)        17.58       17.33           75,070        1.25           1.27              41
     0.00          0.00         15.75       12.34            6,563        1.30*          1.94*             48

     0.00         (0.17)        14.04       (9.94)          55,435        2.01           1.46              55
     0.00         (0.51)        15.79       (6.22)          96,994        2.00           0.95              60
     0.00         (0.85)        17.43       16.40          110,833        2.00           0.53              41
     0.00          0.00         15.71       12.05           11,077        2.04*          1.23*             48

     0.00         (0.18)        14.06       (9.95)          69,808        2.01           1.46              55
     0.00         (0.49)        15.82       (6.21)         112,926        2.00           0.95              60
     0.00         (0.85)        17.44       16.42          130,466        2.00           0.52              41
     0.00          0.00         15.71       12.05           20,637        2.05*          1.13*             48



    $0.00        $(1.80)       $31.34       90.36 %       $305,304        1.21%         (0.91)%            99%
     0.00         (0.98)        17.72       15.69          170,277        1.21          (0.57)            229
     0.00         (4.45)        16.35       27.49          157,277        1.22          (0.49)            226
     0.00         (2.07)        16.82       11.19          150,689        1.20*         (0.31)*           145
     0.00         (1.78)        17.11       16.50          156,027        1.18          (0.34)            141

     0.00         (1.80)        28.60       89.74          223,939        1.96          (1.66)             99
     0.00         (0.98)        16.44       14.93           78,659        1.95          (1.31)            229
     0.00         (4.45)        15.34       26.45           76,194        1.96          (1.24)            226
     0.00         (2.07)        16.14       10.58           67,531        1.94*         (1.05)*           145
     0.00         (1.78)        16.58       15.58           49,851        1.93          (1.09)            141

     0.00         (1.80)        28.59       89.79        1,676,384        1.96          (1.67)             99
     0.00         (0.98)        16.43       14.86          910,494        1.95          (1.31)            229
     0.00         (4.45)        15.34       26.53          952,728        1.96          (1.24)            226
     0.00         (2.07)        16.13       10.52          969,317        1.94*         (1.06)*           145
     0.00         (1.78)        16.58       15.66          974,948        1.93          (1.09)            141


    $0.00        $ 0.00        $12.24        5.61%        $  9,226        1.11%          0.02%             32%
     0.00          0.00         11.59       15.90            6,579        1.11*          0.25*             13
     0.00          0.00         12.06        4.78           10,794        1.86          (0.74)             32
     0.00          0.00         11.51       15.10            6,370        1.85*         (0.50)*            13
     0.00          0.00         12.06        4.78           15,651        1.86          (0.73)             32
     0.00          0.00         11.51       15.10           10,742        1.84*         (0.52)*            13



    $0.00        $(2.80)       $11.38       (7.11)%       $ 19,087        1.11%          1.76 %           196%
     0.00         (1.94)        15.29       11.93           22,267        1.11           1.68             101
     0.00         (1.81)        15.64       18.86           21,742        1.11           1.19              77
     0.00         (0.10)        14.80       13.19           15,648        1.11*          1.71*             71

     0.00         (2.70)        11.36       (7.77)          26,908        1.86           1.02             196
     0.00         (1.84)        15.26       11.05           36,314        1.85           0.85             101
     0.00         (1.70)        15.63       17.98           35,716        1.86           0.45              77
     0.00         (0.06)        14.80       12.93           25,433        1.86*          0.96*             71
     0.00         (2.70)        11.36       (7.81)          53,756        1.86           1.02             196
     0.00         (1.84)        15.26       11.04           80,594        1.85           0.83             101
     0.00         (1.70)        15.63       17.98           88,235        1.86           0.45              77
     0.00         (0.06)        14.80       13.02           64,110        1.86*          0.97*             71
</TABLE>
                                                                   Prospectus 70
<PAGE>

            PIMCO Funds: Multi-Manager Series

            The Trust's Statement of Additional Information ("SAI") and annual
            and semi-annual reports to shareholders include additional
            information about the Funds. The SAI and the financial statements
            included in the Funds' most recent annual report to shareholders
            are incorporated by reference into this Prospectus, which means
            they are part of this Prospectus for legal purposes. The Funds'
            annual report discusses the market conditions and investment
            strategies that significantly affected each Fund's performance
            during its last fiscal year.

            The SAI includes the PIMCO Funds Shareholders' Guide for Class A,
            B and C Shares, a separate booklet which contains more detailed
            information about Fund purchase, redemption and exchange options
            and procedures and other information about the Funds. You can get
            a free copy of the Guide together with or separately from the rest
            of the SAI.

            You may get free copies of any of these materials, request other
            information about a Fund, or make shareholder inquiries by calling
            1-800-426-0107, or by writing to:

                  PIMCO Funds Distributors LLC
                  2187 Atlantic Street
                  Stamford, Connecticut 06902

            You may review and copy information about the Trust, including its
            SAI, at the Securities and Exchange Commission's public reference
            room in Washington, D.C. You may call the Commission at 1-202-942-
            8090 for information about the operation of the public reference
            room. You may also access reports and other information about the
            Trust on the EDGAR database on the Commssion's Web site at
            www.sec.gov. You may get copies of this information, with payment
            of a duplication fee, by electronic request at the following e-
            mail address: [email protected], or by writing the Public
            Reference Section of the Commission, Washington, D.C. 20549-6009.
            You may need to refer to the Trust's file number under the
            Investment Company Act, which is 811-6161.

            You can also visit our Web site at www.pimcofunds.com for
            additional information about the Funds.

[LOGO OF PIMCO FUNDS]

            File No. 811-6161
<PAGE>




                      (This page left blank intentionally)



<PAGE>




                      (This page left blank intentionally)



<PAGE>


           --------------------------------------------------------------------
PIMCO      INVESTMENT ADVISER AND ADMINISTRATOR
Funds:     PIMCO Advisors L.P., 800 Newport Center Drive, Newport Beach, CA
Multi-     92660
Manager
Series
           --------------------------------------------------------------------
           SUB-ADVISERS
           PIMCO Equity Advisors division of PIMCO Advisors L.P.,
           PIMCO/Allianz Investment Advisors LLC, Cadence Capital Management,
           NFJ Investment Group, Parametric Portfolio Associates, Blairlogie
           Capital Management
           --------------------------------------------------------------------
           DISTRIBUTOR
           PIMCO Funds Distributors LLC, 2187 Atlantic Street, Stamford, CT
           06902-6896
           --------------------------------------------------------------------
           CUSTODIAN
           State Street Bank & Trust Co., 801 Pennsylvania, Kansas City, MO
           64105
           --------------------------------------------------------------------
           SHAREHOLDER SERVICING AGENT AND TRANSFER AGENT
           PFPC, 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 vist our Web site at www.pimcofunds.com.

                                                     Not part of the Prospectus
<PAGE>

[GRAPH]

You'll find all the content you've come to rely on--at pimcofunds.com--and more.


Presenting the new PIMCO Funds Web site at www.pimcofunds.com

As part of our commitment to provide our shareholders with easy access to
timely information, we're pleased to introduce a redesigned version of the PIMCO
Funds Web site (www.pimcofunds.com).

Designed to make the site user-friendly, you'll immediately notice improved
navigation accompanied by intuitive labeling and graphics that load quickly.
Content updates include expanded detail throughout the Fund Information section,
and a variety of forms and literature are now available for printing and viewing
online or for download to your hard drive.

Fund Information Section

In addition to everything we previously offered in the Fund Information section,
we now offer the following:

 . Regular commentary from the manager of each fund.

 . A better design without frames allows you to bookmark fund profile pages.

 . Cross-links give you immediate access to literature with more detail about
each fund.

 . One-click allows you to check out the NAV and year-to-date performance of any
PIMCO Fund.

PIMCO Funds Innovation Center

The all-new PIMCO Funds Innovation Center is an invaluable resource for tech
investors and those contemplating an investment in this complex, fast-moving
sector. Dedicated to the research and analysis of technology, the Center
provides a number of key resources, including:

 . Innovation Newsletter--An online version of our popular technology investing
newsletter, featuring the latest market analysis and outlook from Dennis
McKechnie, PIMCO's renowned tech manager.

 . Timely Market Commentary--PIMCO's perspective on unfolding market events.

 . Theme Analysis--Manager assessments of the trends or "themes" that PIMCO
believes are driving the tech sector and the industry groups that make up the
market.

Daily Manager Commentary

PIMCO's Daily Manager Commentary provides investment insights from PIMCO's fund
managers, including their outlooks on the economy and fund strategies that
relate to the current economic climate. This commentary, on a wide range of
subjects, is uniquely provided from the manager's perspective and helps
investors make informed decisions based on information directly from PIMCO's
investment professionals.

PZ001.11/00                                           Not part of the Prospectus

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

[LOGO OF PIMCO FUNDS]
                                                           ----------------
                                                               PRESORTED
                                                             STANDARD U.S.
PIMCO Funds                                                     POSTAGE
Distributors LLC                                                  PAID
                                                             SMITHTOWN, NY
2187 Atlantic Street                                        PERMIT NO. 700
Stamford, CT 06902-6896                                    ----------------
<PAGE>

November 1, 2000


                PIMCO Funds Prospectus stock



Share Classes       GROWTH STOCK FUNDS             ENHANCED INDEX STOCK FUNDS
D
                    Growth Fund                    Tax-Efficient Equity Fund

                    Select Growth Fund

                    Target Fund                    INTERNATIONAL STOCK FUNDS

                                                   Allianz Select
                                                   International Fund
                    BLEND STOCK FUNDS

                    Growth & Income Fund

                    Capital Appreciation Fund      SECTOR-RELATED STOCK FUNDS

                    Mid-Cap Fund                   Innovation Fund

                                                   Global Innovation Fund

                    VALUE STOCK FUNDS

                    Equity Income Fund

                    Renaissance Fund

                    Value Fund



This cover is not part of the Prospectus.
<PAGE>

            PIMCO Funds Prospectus

PIMCO       This Prospectus describes 13 mutual funds offered by PIMCO Funds:
Funds:      Multi-Manager Series. The Funds provide access to the professional
Multi-      investment advisory services offered by PIMCO Advisors L.P. and
Manager     its investment management affiliates. As of September 30, 2000,
Series      PIMCO Advisors and its affiliates managed approximately
            $272 billion.

November
1, 2000

            The Prospectus explains what you should know about the Funds
            before you invest. Please read it carefully.

Share
Class D

            The Securities and Exchange Commission has not approved or
            disapproved these securities or determined if this Prospectus is
            truthful or complete. Any representation to the contrary is a
            criminal offense.

1  PIMCO Funds: Multi-Manager Series
<PAGE>

            Table of Contents

<TABLE>
         <S>                                                               <C>
         Summary Information..............................................   3
         Fund Summaries
           Capital Appreciation Fund......................................   5
           Equity Income Fund.............................................   7
           Global Innovation Fund.........................................   9
           Growth Fund....................................................  11
           Growth & Income Fund...........................................  13
           Innovation Fund................................................  15
           Mid-Cap Fund...................................................  17
           Renaissance Fund...............................................  19
           Select Growth Fund.............................................  21
           Allianz Select International Fund..............................  23
           Target Fund....................................................  25
           Tax-Efficient Equity Fund......................................  27
           Value Fund.....................................................  29
         Summary of Principal Risks.......................................  31
         Management of the Funds..........................................  34
         How Fund Shares Are Priced.......................................  39
         How to Buy and Sell Shares.......................................  39
         Fund Distributions...............................................  42
         Tax Consequences.................................................  42
         Characteristics and Risks of Securities and Investment
          Techniques......................................................  43
         Financial Highlights.............................................  51
</TABLE>

                                                                   Prospectus  2
<PAGE>

             Summary Information

             The table below lists the investment objectives and compares
             certain investment characteristics of the Funds. Other important
             characteristics are described in the individual Fund Summaries
             beginning on page 5.

<TABLE>
<CAPTION>
                                                                                                                Approximate
                 PIMCO                Investment               Main                                             Number of
                 Fund                 Objective                Investments                                      Holdings
---------------------------------------------------------------------------------------------------------------------------
<S>              <C>                  <C>                      <C>                                              <C>
Growth Stock     Growth               Long-term growth of      Common stocks of companies with                  35-40
Funds                                 capital; income is       market capitalizations of at least $5 billion
                                      an incidental
                                      consideration
          -----------------------------------------------------------------------------------------------------------------
                 Select Growth        Long-term growth of      Common stocks of companies with                  15-25
                                      capital; income is an    market capitalizations of at least $10 billion
                                      incidental consideration
          -----------------------------------------------------------------------------------------------------------------
                 Target               Capital appreciation;    Common stocks of companies with                  40-60
                                      no consideration is      market capitalizations of between $1 billion
                                      given to income          and $10 billion
---------------------------------------------------------------------------------------------------------------------------
Blend Stock      Capital Appreciation Growth of capital        Common stocks of companies with market           60-100
Funds                                                          capitalizations of at least $1 billion that
                                                               have improving fundamentals and whose stock is
                                                               reasonably valued by the market
          -----------------------------------------------------------------------------------------------------------------
                 Growth & Income      Long-term growth of      Securities of companies with market              40-60
                                      capital; current income  capitalizations of at least $1 billion
                                      is a secondary objective
          -----------------------------------------------------------------------------------------------------------------
                 Mid-Cap              Growth of capital        Common stocks of companies with market           60-100
                                                               capitalizations of more than $500 million
                                                               (excluding the largest 200 companies) that have
                                                               improving fundamentals and whose stock is
                                                               reasonably valued by the market
---------------------------------------------------------------------------------------------------------------------------
Value Stock      Equity Income        Current income as a      Income-producing common stocks of                40-50
Funds                                 primary objective;       companies with market capitalizations of
                                      long-term growth of      more than $2 billion
                                      capital is a secondary
                                      objective
          -----------------------------------------------------------------------------------------------------------------
                 Renaissance          Long-term growth of      Common stocks of companies with below-average    50-80
                                      capital and income       valuations whose business fundamentals are
                                                               expected to improve
          -----------------------------------------------------------------------------------------------------------------
                 Value                Long-term growth of      Common stocks of companies with market           40
                                      capital and income       capitalizations of more than $5 billion and
                                                               below-average valuations whose business
                                                               fundamentals are expected to improve
---------------------------------------------------------------------------------------------------------------------------
Enhanced Index   Tax-Efficient Equity Maximum after-tax        A broadly diversified portfolio of at least 200  More than
Stock Funds                           growth of capital        common stocks of companies represented in        200
                                                               the S&P 500 Index with market capitalizations
                                                               of more than $5 billion
---------------------------------------------------------------------------------------------------------------------------
International    Allianz Select       Capital appreciation     Common stocks of companies located outside of    30-60
Stock Funds       International                                the United States with market capitalizations of
                                                               more than $1 billion
---------------------------------------------------------------------------------------------------------------------------
Sector-Related   Innovation           Capital appreciation;    Common stocks of technology-related              40
Stock Funds                           no consideration is      companies with market capitalizations of more
                                      given to income          than $200 million
          -----------------------------------------------------------------------------------------------------------------
                 Global Innovation    Capital appreciation;    Common stocks of U.S. and non-U.S.               30-60
                                      no consideration is      technology-related companies with market
                                      given to income          capitalizations of more than $200 million
<CAPTION>
                 Approximate
                 Capitalization
                 Range
---------------------------------------------------------------------------------------------------------------------------
<S>              <C>
Growth Stock     At least $5 billion
Funds
          -----------------------------------------------------------------------------------------------------------------
                 At least $10 billion
          -----------------------------------------------------------------------------------------------------------------
                 Between $1 billion and
                 $10 billion
---------------------------------------------------------------------------------------------------------------------------
Blend Stock      At least $1 billion
Funds
          -----------------------------------------------------------------------------------------------------------------
                 At least $1 billion
          -----------------------------------------------------------------------------------------------------------------
                 More than $500 million
                 (excluding the largest
                 200 companies)
---------------------------------------------------------------------------------------------------------------------------
Value Stock      More than $2 billion
Funds
          -----------------------------------------------------------------------------------------------------------------
                 All capitalizations
          -----------------------------------------------------------------------------------------------------------------
                 More than $5 billion
---------------------------------------------------------------------------------------------------------------------------
Enhanced Index   More than $5 billion
Stock Funds
---------------------------------------------------------------------------------------------------------------------------
International    More than $1 billion
Stock Funds
---------------------------------------------------------------------------------------------------------------------------
Sector-Related   More than $200 million
Stock Funds
          -----------------------------------------------------------------------------------------------------------------
                 More than $200 million
</TABLE>

3 PIMCO Funds: Multi-Manager Series
<PAGE>

            Summary Information (continued)

Fund         The Funds provide a broad range of investment choices. The
Descriptions,following Fund Summaries identify each Fund's investment
Performance  objective, principal investments and strategies, principal risks,
and Fees     performance information and fees and expenses. A more detailed
             "Summary of Principal Risks" describing principal risks of
             investing in the Funds begins after the Fund Summaries.

             It is possible to lose money on investments in the Funds. The
             fact that a Fund had good performance in the past (for example,
             during the year ended 1999) is no assurance that the value of the
             Fund's investments will not decline in the future or appreciate
             at a slower rate. An investment in a Fund is not a deposit of a
             bank and is not guaranteed or insured by the Federal Deposit
             Insurance Corporation or any other government agency.

                                                                   Prospectus 4

<PAGE>

            PIMCO Capital Appreciation Fund

--------------------------------------------------------------------------------
<TABLE>
<S>  <C>      <C>                  <C>                    <C>
Principal     Investment           Fund Focus             Approximate Capitalization Range
Investments   Objective            Larger capitalization  At least $1 billion
and           Seeks growth         common stocks
Strategies    of capital

              Fund Category        Approximate Number     Dividend Frequency
              Blend Stocks         of Holdings            At least annually
</TABLE>                           60-100

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with larger market capitalizations that have improving
            fundamentals (based on growth criteria) and whose stock is
            reasonably valued by the market (based on value criteria).

             In making investment decisions for the Fund, the portfolio
            management team considers the 1,000 largest publicly traded
            companies (in terms of market capitalization) in the U.S. The team
            screens the stocks in this universe for a series of growth
            criteria, such as dividend growth, earnings growth, relative
            growth of earnings over time (earnings momentum) and the company's
            history of meeting earnings targets (earnings surprise), and also
            value criteria, such as price-to-earnings, price-to-book and
            price-to-cash flow ratios. The team then selects individual stocks
            by subjecting the top 10% of the stocks in the screened universe
            to a rigorous analyses of company factors, such as strength of
            management, competitive industry position, and business prospects,
            and financial statement data, such as earnings, cash flows and
            profitability. The team may interview company management in making
            investment decisions. The Fund's capitalization criteria applies
            at the time of investment.

             The portfolio management team rescreens the universe frequently
            and seeks to consistently achieve a favorable balance of growth
            and value characteristics for the Fund. The team looks to sell a
            stock when it falls below the median ranking, has negative
            earnings surprises, or shows poor price performance relative to
            all stocks in the Fund's capitalization range or to companies in
            the same business sector. A stock may also be sold if its
            weighting in the portfolio becomes excessive (normally above 2% of
            the Fund's investments).

             The Fund intends to be fully invested in common stock (aside from
            certain cash management practices) and will not make defensive
            investments in response to unfavorable market and other
            conditions.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>
            <S>                       <C>                          <C>
            .  Market Risk            .  Growth Securities Risk    .  Credit Risk
            .  Issuer Risk            .  Focused Investment Risk   .  Management Risk
            .  Value Securities Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. For periods prior to the inception of the
            Fund's Class D shares (4/8/98), performance information shown in
            the bar chart (including the information to its right) and the
            Average Annual Total Returns table is based on the performance of
            the Fund's Institutional Class shares, which are offered in a
            different prospectus. The prior Institutional Class performance
            has been adjusted to reflect the actual distribution and/or
            service (12b-1) fees and other expenses paid by Class D shares.
            Past performance is no guarantee of future results.


5 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Capital Appreciation Fund (continued)

            Calendar Year Total Returns -- Class D


                                                           More Recent Return
                                                           Information
                                                           --------------------
                                                           1/1/00 - 9/30/00
                                                                          17.46%

                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (10/1/99-
                                                           12/31/99)     23.79%
                                                           --------------------
                                                           Lowest (7/1/98-
                                                           9/30/98)     -14.22%

                                    [GRAPH]

                                 Annual Return

           92      93      94      95      96      97      98      99
         7.08%  17.24%  -4.64%  36.61%  26.30%  33.70%  17.14%  22.24%

                   Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>

                                                                  Fund Inception
                                                   1 Year 5 Years (3/8/91)(/3/)
         <S>                                       <C>    <C>     <C>
            --------------------------------------------------------------------
         Class D                                   22.24% 26.99%  19.60%
            --------------------------------------------------------------------
         S&P 500 Index(/1/)                        21.04% 28.56%  19.75%
            --------------------------------------------------------------------
         Lipper Multi-Cap Core Funds Average(/2/)  20.63% 23.01%  17.15%
            --------------------------------------------------------------------
</TABLE>

            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Multi-Cap Core Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest in companies with a variety of
                capitalization ranges without concentrating in any one market
                capitalization range over an extended period of time. It does
                not take into account sales charges.
            (3) The Fund began operations on 3/8/91. Index comparisons begin
                on 2/28/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment) None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.45%      0.25%               0.41%           1.11%
            --------------------------------------------------------------------

            (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. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.65% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees 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.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that its not reflected under Distribution
                and/or Service (12b-1) Fees and 0.01% in other expenses
                attributable to the class during the most recent fiscal year.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $113       $353                $612            $1,352
            --------------------------------------------------------------------
</TABLE>


                                                                   Prospectus  6
<PAGE>

            PIMCO Equity Income Fund

--------------------------------------------------------------------------------
<TABLE>
<S>  <C>
Principal     Investment             Fund Focus           Approximate Capitalization Range
Investments   Objective              Income               More than $2
and           Seeks current          producing            billion
Strategies    income as a            common
              primary                stocks with
              objective;             potential
              long-term              for capital
              growth of              appreciation
              capital is a
              secondary
              objective

              Fund                   Approximate Number   Dividend
              Category               of Holdings          Frequency
              Value Stocks           40-50                Quarterly

</TABLE>


            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in income-producing (e.g.,
            dividend-paying) common stocks of companies with market
            capitalizations of more than $2 billion at the time of investment.
            The Fund may also invest to a limited degree in convertible
            securities and preferred stocks.

             The Fund's initial selection universe consists of the 1,000
            largest publicly traded companies (in terms of market
            capitalization) in the U.S. The portfolio managers classify the
            universe by industry. They then identify the most undervalued
            stocks in each industry based mainly on relative P/E ratios,
            calculated both with respect to trailing operating earnings and
            forward earnings estimates. From this group of stocks, the Fund
            buys approximately 25 stocks with the highest dividend yields. The
            portfolio managers then screen the most undervalued companies in
            each industry by dividend yield to identify the highest yielding
            stocks in each industry. From this group, the Fund buys
            approximately 25 additional stocks with the lowest P/E ratios.

             In selecting stocks, the portfolio managers consider quantitative
            factors such as price momentum (based on changes in stock price
            relative to changes in overall market prices), earnings momentum
            (based on analysts' earnings per share estimates and revisions to
            those estimates), relative dividend yields, valuation relative to
            the overall market and trading liquidity. The portfolio managers
            may replace a stock when a stock within the same industry group
            has a considerably higher dividend yield or lower valuation than
            the Fund's current holding.

             The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). In response to unfavorable market and
            other conditions, the Fund may make temporary investments of some
            or all of its assets in high-quality fixed income securities. This
            would be inconsistent with the Fund's investment objective and
            principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              .Market Risk           .Foreign              .Credit Risk
              .Issuer Risk            Investment Risk      .Management
              .Value Securities      .Currency Risk        Risk
              Risk                   .Interest Rate
                                     Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. For periods prior to the inception of the
            Fund's Class D shares (4/8/98), performance information shown in
            the bar chart (including the information to its right) and the
            Average Annual Total Returns table is based on the performance of
            the Fund's Institutional Class shares, which are offered in a
            different prospectus. The prior Institutional Class performance
            has been adjusted to reflect the actual distribution and/or
            service (12b-1) fees and other expenses paid by Class D shares.
            Prior to May 8, 2000, the Fund had a different sub-adviser and
            would not necessarily have achieved the performance results shown
            on the next page under its current investment management
            arrangements. Past performance is no guarantee of future results.

7 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Equity Income Fund (continued)

            Calendar Year Total Returns -- Class D


                                                           More Recent Return
                                                           Information
                                                           --------------------
                                                           1/1/00 - 9/30/00
                                                                          6.88%

                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (4/1/99-
                                                           6/30/99)      15.98%
                                                           --------------------
                                                           Lowest (7/1/98-
                                                           9/30/98)     -10.99%

                                    [GRAPH]

                                 Annual Return

           92      93      94      95      96      97      98      99
        14.29%   8.04%  -2.00%  32.94%  21.00%  30.87%   8.07%  -2.22%


                   Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                                 Fund Inception
                                                  1 Year 5 Years (3/8/91)(/3/)
            -------------------------------------------------------------------
         <S>                                      <C>    <C>     <C>
         Class D                                  -2.22%  17.34% 13.83%
            -------------------------------------------------------------------
         S&P 500 Index(/1/)                       21.04%  28.56% 19.75%
            -------------------------------------------------------------------
         Lipper Equity Income Funds Average(/2/)   3.62%  17.60% 14.24%
            -------------------------------------------------------------------
</TABLE>

            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Equity Income Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that seek relatively high current income and
                growth of income through investing 65% or more of their
                portfolios in dividend-paying equities. It does not take into
                account sales charges.
            (3) The Fund began operations on 3/8/91. Index comparisons begin
                on 2/28/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.45%      0.25%               0.42%           1.12%
            --------------------------------------------------------------------
</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. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.65% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees 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.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees and 0.02% in other expenses
                attributable to the class during the most recent fiscal year.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<TABLE>
<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $114       $356                $617            $1,363
            --------------------------------------------------------------------
</TABLE>

                                                                   Prospectus  8
<PAGE>

            PIMCO Global Innovation Fund

--------------------------------------------------------------------------------
<TABLE>
<S>           <C>                    <C>                <C>
Principal     Investment Objective  Fund Focus          Approximate Capitalization Range
Investments   Seeks capital         Common stocks of    More than $200 million
and           appreciation; no      U.S. and non-U.S.
Strategies    consideration is      technology-
              given to income       related companies

                                                        Dividend Frequency
                                                        At least annually
              Fund Category       Approximate Number
              Sector-Related      of Holdings
              Stocks              30-60

</TABLE>

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of U.S. and
            non-U.S. companies which utilize new, creative or different, or
            "innovative," technologies to gain a strategic competitive
            advantage in their industry, as well as companies that provide and
            service those technologies. The Fund identifies its investment
            universe of technology-related companies primarily by reference to
            classifications made by independent firms, such as Standard &
            Poor's (for example, companies classified as "Information
            Technology" companies), and by identifying companies that derive a
            substantial portion of their revenues from the manufacture, sale
            and/or service of technological products. Although the Fund
            emphasizes companies which utilize technologies, it is not
            required to invest exclusively in a particular business sector or
            industry.

              The portfolio manager selects stocks for the Fund using a
            "growth" style. The portfolio manager seeks to identify
            technology-related companies with well-defined "wealth creating"
            characteristics, including superior earnings growth (relative to
            companies in the same industry or the market as a whole), high
            profitability and consistent, predictable earnings. In addition,
            through fundamental research, the portfolio manager seeks to
            identify companies that are gaining market share, have superior
            management and possess a sustainable competitive advantage, such
            as superior or innovative products, personnel and distribution
            systems. The Fund looks to sell a stock when the portfolio manager
            believes that earnings or market sentiment are disappointing, if
            the company does not meet or exceed consensus estimates on
            revenues and/or earnings or if an alternative investment is more
            attractive.

              Although the Fund invests principally in common stocks, the Fund
            may also invest in other types of equity securities, including
            preferred stocks and convertible securities. The Fund may invest a
            substantial portion of its assets in the securities of smaller
            capitalization companies and securities issued in initial public
            offerings (IPOs). The Fund will invest in the securities of
            issuers located in at least three countries (one of which may be
            the United States). Although the Fund invests primarily in
            securities traded principally in the securities markets of
            developed countries, the Fund has no other prescribed limits on
            geographic asset distribution and may invest in any foreign
            securities market in the world, including in developing, or
            "emerging," markets. The Fund may utilize foreign currency
            exchange contracts and derivative instruments (such as stock index
            futures contracts), primarily for risk management or hedging
            purposes.

              In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

     .Market Risk              .Smaller Company Risk    .Currency Risk
     .Issuer Risk              .Liquidity Risk          .Focused Investment Risk
     .Technology Related Risk  .Derivatives Risk        .Leveraging Risk
     .Growth Securities Risk   .Foreign Investment Risk .Credit Risk
     .IPO Risk                 .Emerging Markets Risk   .Management Risk


            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The Fund commenced operations in December 1999 and does not yet
Information have a full calendar year of performance. Thus, no bar chart or
            Average Annual Total Returns table is included for the Fund.

9 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Global Innovation Fund (continued)

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets):

<TABLE>
                           Distribution                    Total Annual                  Net Fund
                  Advisory and/or Service    Other         Fund Operating Expense        Operating
                  Fees     (12b-1) Fees(/1/) Expenses(/2/) Expenses       Reduction(/3/) Expenses(/3/)
            ------------------------------------------------------------------------------------------
         <S>      <C>      <C>               <C>           <C>            <C>            <C>
         Class D  1.00%    0.25%             0.69%         1.94%          (0.09%)        1.85%
            ------------------------------------------------------------------------------------------
</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. Up to 0.25% per year of the total
                 Administrative Fee paid under the administration agreement
                 may be Distribution and/or Service (12b-1) Fees. The Fund
                 will pay a total of 0.85% per year under the administration
                 agreement regardless of whether a portion or none of the
                 0.25% authorized under the plan is paid under the plan.
                 Please see "Management of the Funds--Administrative Fees" for
                 details. The Fund intends to treat any fees paid under the
                 plan as "service fees" for purposes of applicable rules of
                 the National Association of Securities Dealers, Inc. (the
                 "NASD"). To the extent that such fees 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.
            (2)  Other Expenses reflects the portion of the Administrative Fee
                 paid by the class that is not reflected under Distribution
                 and/or Service (12b-1) Fees, and 0.09% in organizational
                 expenses ("Organizational Expenses") attributable to the
                 class during the most recent fiscal year.
            (3)  Net Expenses reflect the effect of a contractual agreement by
                 PIMCO Advisors to waive, reduce or reimburse its
                 Administrative Fee for each class to the extent Annual Fund
                 Operating Expenses exceeded, due to the payment of
                 organizational and certain other expenses, 1.85% for Class D
                 shares during the Fund's most recent (initial) fiscal year.
                 Under the Expense Limitation Agreement, PIMCO Advisors may
                 recoup these waivers and reimbursements (which do not
                 continue after the Fund's initial fiscal year) in future
                 periods, not exceeding three years, provided total expenses,
                 including such recoupment, do not exceed the annual expense
                 limit.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<TABLE>
                         Year 1               Year 3               Year 5               Year 10
            -----------------------------------------------------------------------------------
         <S>             <C>                  <C>                  <C>                  <C>
         Class D         $188                 $581                 $998                 $2,159
            -----------------------------------------------------------------------------------
</TABLE>
                                                                   Prospectus 10
<PAGE>

            PIMCO Growth Fund

<TABLE>
<CAPTION>
--------------------------------------------------------------------------------------------
<S>           <C>                    <C>                    <C>
Principal     Investment Objective   Fund Focus             Approximate Capitalization Range
Investments   Seeks long-term        Larger capitalization  At least $5 billion
and           growth of capital;     common stocks
Strategies    income is an
              incidental
              consideration
                                                            Dividend Frequency
                                     Approximate Number     At least annually
                                     of Holdings
              Fund Category          35-40
              Growth Stocks
</TABLE>

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of "growth"
            companies with market capitalizations of at least $5 billion at
            the time of investment.

             The portfolio manager selects stocks for the Fund using a
            "growth" style. The portfolio manager seeks to identify companies
            with well-defined "wealth creating" characteristics, including
            superior earnings growth (relative to companies in the same
            industry or the market as a whole), high profitability and
            consistent, predictable earnings. In addition, through fundamental
            research, the portfolio manager seeks to identify companies that
            are gaining market share, have superior management and possess a
            sustainable competitive advantage, such as superior or innovative
            products, personnel and distribution systems. The Fund looks to
            sell a stock when the portfolio manager believes that its
            earnings, market sentiment or relative performance are
            disappointing or if an alternative investment is more attractive.

             The Fund may also invest to a limited degree in other kinds of
            equity securities, including preferred stocks and convertible
            securities. The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). The Fund has in the past invested a
            significant portion of its assets in technology or technology-
            related companies, although there is no assurance that it will
            continue to do so in the future.

             In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

            . Market Risk         . Foreign Investment Risk  . Focused
            . Issuer Risk         . Currency Risk              Investment Risk
            . Growth Securities   . Technology Related Risk  . Credit Risk
              Risk                                           . Management Risk


            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart, the information to its
            right and the Average Annual Total Returns table show performance
            of the Fund's Class C shares, which are offered in a different
            prospectus. This is because the Fund has not had Class D shares
            outstanding for a full calendar year. Although Class D and Class C
            shares would have similar annual returns (because all of the
            Fund's shares represent interests in the same portfolio of
            securities), Class D performance would be higher than Class C
            performance because of the lower expenses paid by Class D shares.
            The Class C performance in the bar chart and the information to
            its right do not reflect the impact of sales charges (loads). If
            they did, the returns would be lower than those shown. Unlike the
            bar chart, performance figures for Class C shares in the Average
            Annual Total Returns table reflect the impact of sales charges.

             For periods prior to the inception of Class D shares (11/1/99),
            the Average Annual Total Returns table also shows estimated
            historical performance for Class D shares based on the performance
            of Class C shares, adjusted to reflect that there are no sales
            charges and lower distribution and/or service (12b-1) fees paid by
            Class D shares. Prior to March 6, 1999, the Fund had a different
            sub-adviser and would not necessarily have achieved the
            performance results shown on the next page under its current
            investment management arrangements. Past performance is no
            guarantee of future results.

11 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Growth Fund (continued)

            Calendar Year Total Returns -- Class C


                                                           More Recent Return
                                                           Information
                                                           --------------------
                                                           1/1/00 -
                                                            9/30/0       4.43%0

                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (10/1/99-
                                                           12/31/99)     36.21%
                                                           --------------------
                                                           Lowest (7/1/90-
                                                           9/30/90)     -13.14%
                                 [GRAPH]
Total Returns
 1990    1991    1992    1993     1994     1995    1996    1997   1998     1999
0.29%  41.88%   2.08%   9.32%   -0.75%   27.47%  17.52%  21.84%  38.90%  39.83%
                   Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                                Fund Inception
                                        1 Year 5 Years 10 Years (2/24/84)(/3/)
            ------------------------------------------------------------------
         <S>                            <C>    <C>     <C>      <C>
         Class C                        38.83% 28.80%  18.77%   19.25%
            ------------------------------------------------------------------
         Class D                        40.86% 29.75%  19.66%   20.14%
            ------------------------------------------------------------------
         S&P 500 Index(/1/)             21.04% 28.56%  18.21%   18.60%
            ------------------------------------------------------------------
         Lipper Large-Cap Growth Funds
          Average(/2/)                  40.54% 29.41%  18.88%   17.74%
            ------------------------------------------------------------------
</TABLE>

            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Large-Cap Growth Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest primarily in companies with market
                capitalizations of greater than 300% of the dollar-weighted
                median market capitalization of the S&P Mid-Cap 400 Index. It
                does not take into account sales charges.
            (3) The Fund began operations on 2/24/84. Index comparisons begin
                on 2/29/84.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment) None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.50%      0.25%               0.41%           1.16%
            --------------------------------------------------------------------

</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. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.65% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees 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.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees and 0.01% in other expenses
                attributable to the class during the most recent fiscal year.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<TABLE>
<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $118       $368                $638            $1,409
            --------------------------------------------------------------------
</TABLE>


                                                                   Prospectus 12
<PAGE>

            PIMCO Growth & Income Fund

--------------------------------------------------------------------------------
Principal     Investment Objective Fund Focus             Approximate
Investments   Seeks long-term      Medium and large       Capitalization Range
and           growth of            capitalization         At least $1 billion
Strategies    capital; current     common stocks
              income is a
              secondary
              objective

              Fund Category        Approximate Number     Dividend Frequency
              Blend Stocks         of Holdings            At least annually
                                   40-60

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in securities of companies
            with market capitalizations of at least $1 billion at the time of
            investment. The Fund may invest up to 75% of its assets in
            securities selected for their growth potential. The Fund will
            normally invest at least 25% of its assets in securities selected
            for their income potential, including dividend-paying common
            stocks, preferred stocks, corporate bonds, convertible securities
            and real estate investment trusts (REITs).

             When selecting securities for the Fund's "growth" segment, the
            portfolio managers seek to identify companies with well-defined
            "wealth creating" characteristics, including superior earnings
            growth (relative to companies in the same industry or the market
            as a whole), high profitability and consistent, predictable
            earnings. In addition, through fundamental research, the portfolio
            managers seek to identify companies that are gaining market share,
            have superior management and possess a sustainable competitive
            advantage, such as superior or innovative products, personnel and
            distribution systems. The Fund's portfolio managers may choose to
            sell a stock in the "growth" segment when they believe that its
            earnings will be disappointing or that market sentiment on the
            company will turn negative. The portfolio managers will also
            consider selling a stock if the company does not meet the
            managers' estimates on revenues and/or earnings, or if an
            alternative investment is deemed to be more attractive.

             When selecting securities for the Fund's "income" segment, the
            portfolio managers seek to identify companies with strong
            operating fundamentals that offer potential for capital
            appreciation and that also have a dividend yield in excess of the
            yield on the S&P 500 Index. The portfolio managers may replace an
            "income" security when another security with a similar risk-to-
            reward profile offers either better potential for capital
            appreciation or a higher yield than the Fund's current holding. To
            achieve its income objective, the Fund may also invest to a
            limited degree in preferred stocks, convertible securities and
            REITs. The Fund may invest up to 10% of its assets in corporate
            bonds, which will typically consist of investment grade securities
            of varying maturities but may also include high yield securities
            ("junk bonds") rated at least B by Standard & Poor's Rating
            Services or Moody's Investors Service, Inc. or, if unrated,
            determined by the Adviser to be of comparable quality.

             The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). The Fund has in the past invested a
            significant portion of its assets in technology or technology-
            related companies, although there is no assurance that it will
            continue to do so in the future. In response to unfavorable market
            and other conditions, the Fund may make temporary investments of
            some or all of its assets in high-quality fixed income securities.
            This would be inconsistent with the Fund's investment objective
            and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              . Market Risk          . Liquidity Risk     . Interest Rate Risk
              . Issuer Risk          . Foreign            . High Yield Risk
              . Growth Securities      Investment Risk    . Credit Risk
                Risk                 . Currency Risk      . Management Risk
              . Value Securities     . Focused Investment Risk
                Risk                 . Technology Related Risk
              . Smaller Company
                Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The following shows summary performance information for the Fund
Information in a bar chart and an Average Annual Total Returns table. The
            information provides some indication of the risks of investing in
            the Fund by showing changes in its performance from year to year
            and by showing how the Fund's average annual returns compare with
            the returns of a broad-based securities market index and an index
            of similar funds. The bar chart and the information to its right
            show performance of the Fund's Institutional Class shares, which
            are offered in a different prospectus. This is because the Fund
            did not offer Class D shares during the periods shown. Although
            Class D and Institutional Class shares would have similar annual
            returns (because all the Fund's shares represent interests in the
            same portfolio of securities), Class D performance would be lower
            than Institutional Class performance because of the higher
            expenses paid by Class D shares. The Average Annual Total Returns
            table also shows estimated historical performance for Class D
            shares based on the performance of the Fund's Institutional Class
            shares, adjusted to reflect the actual distribution and/or service
            (12b-1) fees and other expenses paid by Class D shares. The
            performance information for periods prior to August 1, 2000
            reflects the Fund's advisory fee rate in

13 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Growth & Income Fund (continued)

            effect prior to that date (0.63% per annum), which is higher than
            the current rate (0.60% per annum). Prior to July 1, 1999, the
            Fund had a different sub-adviser and would not necessarily have
            achieved the performance results shown under its current
            investment management arrangements. In addition, the Fund changed
            its investment objective and policies on August 1, 2000; the
            performance results shown on the next page would not necessarily
            have been achieved had the Fund's current objective and policies
            then been in effect. Past performance is no guarantee of future
            results.

            Calendar Year Total Returns -- Institutional Class

                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00-
                                                            9/30/00       23.58%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (10/1/99-
                                                            12/31/99     40.12%)
                                                            --------------------
                                                            Lowest (7/1/98-
                                                            9/30/98     -11.53%)
                                     [GRAPH]
Total Returns
     1995    1996    1997    1998     1999
   31.72%  17.31%  16.22%  39.40%  109.71%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
<CAPTION>
                                                                  Fund Inception
                                                   1 Year 5 Years (12/28/94)(/3/)
            ---------------------------------------------------------------------
         <S>                                       <C>    <C>     <C>
         Institutional Class                       51.81% 28.77%  28.72%
            ---------------------------------------------------------------------
         Class D                                   51.22% 28.27%  28.21%
            ---------------------------------------------------------------------
         S&P Mid-Cap 400 Index(/1/)                14.73% 23.05%  23.05%
            ---------------------------------------------------------------------
         Lipper Large-Cap Core Funds Average(/2/)  22.77% 25.49%  25.49%
            ---------------------------------------------------------------------
</TABLE>
            (1)  The S&P Mid-Cap 400 Index is an unmanaged index of middle
                 capitalization U.S. stocks. It is not possible to invest
                 directly in the index.
            (2)  The Lipper Large-Cap Core Funds Average is a total return
                 performance average of funds tracked by Lipper Analytical
                 Services, Inc. that invest primarily in companies with market
                 capitalizations of greater than 300% of the dollar-weighted
                 median market capitalization of the S&P Mid-Cap 400 Index. It
                 does not take into account sales charges. The Lipper Large-Cap
                 Core Funds Average replaced the Lipper Mid-Cap Fund Average (a
                 total return performance average of funds tracked by Lipper
                 Analytical Services, Inc. that invest primarily in companies
                 with market capitalizations of less than $5 billion at the
                 time of investment) because PIMCO Advisors believes the Large-
                 Cap Core Funds Average is more representative of the Fund's
                 investment strategies. For periods ended December 31, 1999,
                 the 1 Year, 5 Years and Fund Inception average annual total
                 returns of the Lipper Mid-Cap Fund Average were 39.38%, 23.07%
                 and 23.07%, respectively.
            (3)  The Fund began operations on 12/28/94. Index comparisons begin
                 on 12/31/94.

Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                            Distribution                    Total Annual
                  Advisory  and/or Service    Other         Fund Operating
                  Fees(/1/) (12b-1) Fees(/2/) Expenses(/3/) Expenses
            --------------------------------------------------------------
         <S>      <C>       <C>               <C>           <C>
         Class D  0.60      0.25%             0.65%         1.50%
            --------------------------------------------------------------
</TABLE>
            (1) On August 1, 2000, the Fund's advisory fee rate decreased by
                0.03% to 0.60% per annum.
            (2) 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. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.75% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees 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.
            (3) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees and 0.15% in other expenses
                estimated to be attributable to the class during the current
                fiscal year.
              Examples. The Examples below are intended to help you compare
              the cost of investing in Class D shares of the Fund with the
              costs of investing in other mutual funds. The Examples assume
              that you invest $10,000 in Class D shares for the time periods
              indicated, and then redeem all your shares at the end of those
              periods. The Examples also assume that your investment has a 5%
              return each year, the reinvestment of all dividends and
              distributions, and the Fund's operating expenses remain the
              same. Although your actual costs may be higher or lower, the
              Examples show what your costs would be based on these
              assumptions.

<TABLE>
<CAPTION>
                         Year 1               Year 3               Year 5               Year 10
            -----------------------------------------------------------------------------------
         <S>             <C>                  <C>                  <C>                  <C>
         Class D          $153                 $474                 $818                $1,791
            -----------------------------------------------------------------------------------
</TABLE>


                                                                   Prospectus 14
<PAGE>

            PIMCO Innovation Fund

--------------------------------------------------------------------------------
<TABLE>
<S>  <C>
Principal     Investment           Fund Focus             Approximate Capitalization Range
Investments   Objective            Common stocks of       More than $200
and           Seeks capital        technology-related     million
Strategies    appreciation;        companies
              no
              consideration
              is given to
              income

                                                          Dividend
              Fund                 Approximate Number     Frequency
              Category             of Holdings            At least annually
              Sector-Related       40
              Stocks

</TABLE>

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            which utilize new, creative or different, or "innovative,"
            technologies to gain a strategic competitive advantage in their
            industry, as well as companies that provide and service those
            technologies. The Fund identifies its investment universe of
            technology-related companies primarily by reference to
            classifications made by independent firms, such as Standard &
            Poor's (for example, companies classified as "Information
            Technology" companies), and by identifying companies that derive a
            substantial portion of their revenues from the manufacture, sale
            and or/service of technological products. Although the Fund
            emphasizes companies which utilize technologies, it is not
            required to invest exclusively in companies in a particular
            business sector or industry.

             The portfolio manager selects stocks for the Fund using a
            "growth" style. The portfolio manager seeks to identify
            technology-related companies with well-defined "wealth creating"
            characteristics, including superior earnings growth (relative to
            companies in the same industry or the market as a whole), high
            profitability and consistent, predictable earnings. In addition,
            through fundamental research, the portfolio manager seeks to
            identify companies that are gaining market share, have superior
            management and possess a sustainable competitive advantage, such
            as superior or innovative products, personnel and distribution
            systems. The Fund looks to sell a stock when the portfolio manager
            believes that earnings or market sentiment are disappointing, if
            the company does not meet or exceed consensus estimates on
            revenues and/or earnings or if an alternative investment is more
            attractive.

             Although the Fund invests principally in common stocks, the Fund
            may also invest in other kinds of equity securities, including
            preferred stocks and convertible securities. The Fund may invest a
            substantial portion of its assets in the securities of smaller
            capitalization companies. The Fund may invest up to 15% of its
            assets in foreign securities, except that it may invest without
            limit in American Depository Receipts (ADRs). In response to
            unfavorable market and other conditions, the Fund may make
            temporary investments of some or all of its assets in high-quality
            fixed income securities. This would be inconsistent with the
            Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:



                . Market Risk          . Smaller              . Currency
                . Issuer Risk          Company Risk           Risk
                . Focused              . Liquidity            . Credit Risk
                Investment Risk        Risk                   . Management
                . Growth               . Foreign              Risk
                Securities Risk        Investment Risk
                                       . Technology
                                       Related Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. For periods prior to the inception of the
            Fund's Class D shares (4/8/98), performance information shown in
            the bar chart (including the information to its right) and the
            Average Annual Total Returns table show performance of the Fund's
            Class A shares, which are offered in a different prospectus. The
            prior Class A performance has been adjusted to reflect that there
            are no sales charges (loads) paid by Class D shares. Prior to
            March 6, 1999, the Fund had a different sub-adviser and would not
            necessarily have achieved the performance results shown on the
            next page under its current investment management arrangements.
            Past performance is no guarantee of future results.

15 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Innovation Fund (continued)

            Calendar Year Total Returns -- Class D


                                                           More Recent Return
                                                           Information
                                                           --------------------
                                                           1/1/00 - 9/30/00
                                                                          21.28%

                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (10/1/99-
                                                           12/31/99)     80.23%
                                                           --------------------
                                                           Lowest (1/1/97-
                                                           3/31/97)     -12.56%

                                    [GRAPH]

                                 Annual Return

                   95        96        97        98        99
                45.33%    23.60%     9.03%    79.65%   140.42%


                   Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                                          Fund Inception
                                                          1 Year  5 Years (12/22/94)(/3/)
            -----------------------------------------------------------------------------
         <S>                                              <C>     <C>     <C>
         Class D                                          140.42%  53.27% 52.89%
            -----------------------------------------------------------------------------
         S&P 500 Index(/1/)                                21.04%  28.56% 28.56%
            -----------------------------------------------------------------------------
         Lipper Science and Technology Fund Average(/2/)  135.19%  41.03% 41.03%
            -----------------------------------------------------------------------------
</TABLE>

            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Science and Technology Fund Average is a total
                return performance average of funds tracked by Lipper
                Analytical Services, Inc. that invest at least 65% of their
                assets in science and technology stocks. It does not take into
                account sales charges.
            (3) The Fund began operations on 12/22/94. Index comparisons begin
                on 12/31/94.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment) None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.65%      0.25%               0.40%           1.30%
            --------------------------------------------------------------------

</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. Up to 0.25% per year of the total
                Administrative Fees paid under the administration agreement
                may be Distribution and/or Service (12b-1) Fees. The Fund will
                pay a total of 0.65% per year under the administration
                agreement regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees 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.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<TABLE>
<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $132       $412                $713            $1,568
            --------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 16
<PAGE>

            PIMCO Mid-Cap Fund

--------------------------------------------------------------------------------
<TABLE>
<S>  <C>
Principal     Investment         Fund Focus               Approximate Capitalization Range
Investments   Objective          Medium                   More than $500
and           Seeks growth of    capitalization           million (excluding
Strategies    capital            common stocks            the largest 200
                                                          companies)

              Fund               Approximate Number
              Category           of Holdings
              Blend Stocks       60-100                   Dividend Frequency
                                                          At least annually

</TABLE>

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with medium market capitalizations that have improving
            fundamentals (based on growth criteria) and whose stock is
            reasonably valued by the market (based on value criteria).

             In making investment decisions for the Fund, the portfolio
            management team considers companies in the U.S. market with market
            capitalizations of more than $500 million, but excluding the 200
            largest capitalization companies. The team screens the stocks in
            this universe for a series of growth criteria, such as dividend
            growth, earnings growth, relative growth of earnings over time
            (earnings momentum) and the company's history of meeting earnings
            targets (earnings surprise), and also value criteria, such as
            price-to-earnings, price-to-book and price-to-cash flow ratios.
            The team then selects individual stocks by subjecting the top 10%
            of the stocks in the screened universe to a rigorous analyses of
            company factors, such as strength of management, competitive
            industry position, and business prospects, and financial statement
            data, such as earnings, cash flows and profitability. The team may
            interview company management in making investment decisions. The
            Fund's capitalization criteria applies at the time of investment.

             The portfolio management team rescreens the universe frequently
            and seeks to consistently achieve a favorable balance of growth
            and value characteristics for the Fund. The team looks to sell a
            stock when it falls below the median ranking, has negative
            earnings surprises, or shows poor price performance relative to
            all stocks in the Fund's capitalization range or to companies in
            the same business sector. A stock may also be sold if its
            weighting in the portfolio becomes excessive (normally above 2% of
            the Fund's investments).

             The Fund intends to be fully invested in common stock (aside from
            certain cash management practices) and will not make defensive
            investments in response to unfavorable market and other
            conditions.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              .Market Risk           .Growth                .Focused
              .Issuer Risk           Securities Risk        Investment Risk
              .Value Securities      .Smaller Company       .Credit Risk
              Risk                   Risk                   .Management
                                                            Risk

                                     .Liquidity Risk
            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. For periods prior to the inception of the
            Fund's Class D shares (4/8/98), performance information shown in
            the bar chart (including the information to its right) and the
            Average Annual Total Returns table show performance of the Fund's
            Institutional Class shares, which are offered in a different
            prospectus. The prior Institutional Class performance has been
            adjusted to reflect the actual distribution and/or service (12b-1)
            fees and other expenses paid by Class D shares. Past performance
            is no guarantee of future results.

17 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Mid-Cap Fund (continued)

            Calendar Year Total Returns -- Class D


                                                           More Recent Return
                                                           Information
                                                           --------------------
                                                           1/1/00 - 9/30/00
                                                                         27.79%

                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (10/1/99-
                                                           12/31/99)
                                                                         22.91%
                                                           --------------------
                                                           Lowest (7/1/98-
                                                           9/30/98)
                                                                        -14.46%

                                    [GRAPH]

                                 Annual Return

           92      93      94      95      96      97      98      99
         8.75%  15.32%  -2.76%  36.76%  22.87%  33.65%   7.80%  12.52%

                   Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                                Fund Inception
                                                 1 Year 5 Years (8/26/91)(/3/)
            ------------------------------------------------------------------
         <S>                                     <C>    <C>     <C>
         Class D                                 12.52% 22.19%  17.16%
            ------------------------------------------------------------------
         Russell Mid-Cap Index(/1/)              18.23% 21.85%  17.31%
            ------------------------------------------------------------------
         Lipper Mid-Cap Core Funds Average(/2/)  29.16% 21.12%  16.55%
            ------------------------------------------------------------------
</TABLE>

            (1) The Russell Mid-Cap Index is an unmanaged index of middle
                capitalization U.S. stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Mid-Cap Core Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest primarily in companies with market
                capitalizations of less than 300% of the dollar-weighted
                median market capitalization of the S&P Mid-Cap 400 Index. It
                does not take into account sales charges.
            (3) The Fund began operations on 8/26/91. Index comparisons begin
                on 8/31/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.45%      0.25%               0.41%           1.11%
            --------------------------------------------------------------------

</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. Up to 0.25% per year of the total
                Administrative Fees paid under the administration agreement
                may be Distribution and/or Service (12b-1) Fees. The Fund will
                pay a total of 0.65% per year under the administration
                agreement regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees 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.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees and 0.01% in other expenses
                attributable to the class during the most recent fiscal year.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<TABLE>
<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $113       $353                $612            $1,352
            --------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 18
<PAGE>

            PIMCO Renaissance Fund

--------------------------------------------------------------------------------
<TABLE>
<S>  <C>
Principal     Investment           Fund Focus             Approximate Capitalization Range
Investments   Objective            Undervalued            All capitalizations
and           Seeks long-term      stocks with
Strategies    growth of            improving
              capital and          business
              income               fundamentals

              Fund Category        Approximate Number     Dividend Frequency
              Value Stocks         of Holdings            At least
                                   50-80                  annually

</TABLE>

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with below-average valuations whose business fundamentals are
            expected to improve. Although the Fund typically invests in
            companies with market capitalizations of $1 billion to $10 billion
            at the time of investment, it may invest in companies in any
            capitalization range. To achieve income, the Fund invests a
            portion of its assets in income-producing (e.g., dividend-paying)
            stocks.

             The portfolio manager selects stocks for the Fund using a "value"
            style. The portfolio manager invests primarily in common stocks of
            companies having below-average valuations whose business
            fundamentals, such as market share, strength of management and
            competitive position, are expected to improve. The portfolio
            manager determines valuation based on characteristics such as
            price-to-earnings, price-to-book, and price-to-cash flow ratios.
            The portfolio manager analyzes stocks and seeks to identify the
            key drivers of financial results and catalysts for change, such as
            new management and new or improved products, that indicate a
            company may demonstrate improving fundamentals in the future. The
            portfolio manager looks to sell a stock when he believes that the
            company's business fundamentals are weakening or when the stock's
            valuation has become excessive.

             The Fund may also invest to a limited degree in other kinds of
            equity securities, including preferred stocks and convertible
            securities. The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs).

             In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              .Market Risk           .Foreign Investment Risk   .Credit Risk
              .Issuer Risk           .Currency Risk             .Management Risk
              .Value Securities Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. For periods prior to the inception of the
            Fund's Class D shares (4/8/98), performance information shown in
            the bar chart (including the information to its right) and the
            Average Annual Total Returns table show performance of the Fund's
            Class C shares, which are offered in a different prospectus. The
            prior Class C performance has been adjusted to reflect that there
            are no sales charges (loads) and lower distribution and/or service
            (12b-1) fees paid by Class D shares. Prior to March 6, 1999, the
            Fund had a different sub-adviser and would not necessarily have
            achieved the performance results shown on the next page under its
            current investment management arrangements. Past performance is no
            guarantee of future results.

             The Average Annual Total Returns table also shows estimated
            historical performance for Class D shares. Prior to the inception
            of Class D shares (4/8/98), the performance is based on the
            performance of the Fund's Class C shares, adjusted to reflect that
            there are no sales charges and lower distribution and/or service
            (12b-1) fees paid by Class D shares. Prior to May 7, 1999, the
            Fund had a different sub-adviser and would not necessarily have
            achieved the performance results shown on the next page under its
            current investment management arrangements. Past performance is no
            guarantee of future results.

19 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Renaissance Fund (continued)

            Calendar Year Total Returns -- Class D


                                                           More Recent Return
                                                           Information
                                                           --------------------
                                                           1/1/00 -
                                                           9/30/00       18.52%

                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (10/1/98-
                                                           12/31/98)     18.65%
                                                           --------------------
                                                           Lowest (7/1/98-
                                                           9/30/98)     -16.60%

                                    [GRAPH]

                                 Annual Return

    90      91      92      93      94      95      96      97      98      99
-14.82%  34.22%   8.58%  22.13%  -4.34%  28.55%  25.32%  35.89%  11.66%   9.90%

                  Calendar Year End (through 12/31/99)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                                Fund Inception
                                       1 Year  5 Years 10 Years (4/18/88)(/3/)
            ------------------------------------------------------------------
         <S>                           <C>     <C>     <C>      <C>
         Class D                       9.90%   21.86%  14.57%   14.01%
            ------------------------------------------------------------------
         Russell Mid-Cap Value
          Index(/1/)                   - 0.10% 18.00%  13.81%   14.53%
            ------------------------------------------------------------------
         Lipper Multi-Cap Value Funds
          Average(/2/)                 6.69%   18.32%  13.11%   13.67%
            ------------------------------------------------------------------
</TABLE>

            (1) The Russell Mid-Cap Value Index is an unmanaged index that
                measures the performance of medium capitalization companies in
                the Russell 1000 Index with lower price-to-book ratios and
                lower forecasted growth values. It is not possible to invest
                directly in the index. The Mid-Cap Value Index replaced the
                Russell 1000 Value Index (an unmanaged index that measures the
                performance of companies in the Russell 1000 Index considered
                to have less than average growth orientation) and the S&P 500
                Index (an unmanaged index of large capitalization common
                stocks) as one of the Fund's comparative indexes because PIMCO
                Advisors believes the Russell Mid-Cap Value Index is more
                representative of the Fund's investment strategies. For
                periods ended December 31, 1999, the 1 Year, 5 Years, 10 Years
                and Fund Inception average annual total returns of the Russell
                1000 Value Index were 7.34%, 23.08%, 15.60% and 15.38%,
                respectively, and of the S&P 500 Index were 21.04%, 28.56%,
                18.21% and 19.06%, respectively. It is not possible to invest
                directly in the index.
            (2) The Lipper Multi-Cap Value Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest in companies with a variety of
                capitalization ranges without concentrating in any one market
                capitalization range over an extended period of time. It does
                not take into account sales charges.
            (3) The Fund began operations on 4/18/88. Index comparisons begin
                on 4/30/88.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.60%      0.25%               0.40%           1.25%
            --------------------------------------------------------------------

</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. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.65% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds-- Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees 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.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<TABLE>
<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $127       $397                $686            $1,511
            --------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 20
<PAGE>

            PIMCO Select Growth Fund

--------------------------------------------------------------------------------
<TABLE>
<S>  <C>
Principal     Investment          Fund Focus              Approximate
Investments   Objective           Larger capitalization   Capitalization Range
and           Seeks long-term     common stocks           At least
Strategies    growth of                                   $10 billion
              capital; income
              is an incidental
              consideration

              Fund Category       Approximate Number      Dividend Frequency
              Growth Stocks       of Holdings             At least annually
                                  15-25
</TABLE>

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of "growth"
            companies with market capitalizations of at least $10 billion at
            the time of investment. The Fund normally invests in the
            securities of 15 to 25 issuers.

             The portfolio manager selects stocks for the Fund using a
            "growth" style. The portfolio manager seeks to identify companies
            with well-defined "wealth creating" characteristics, including
            superior earnings growth (relative to companies in the same
            industry or the market as a whole), high profitability and
            consistent, predictable earnings. In addition, through fundamental
            research, the portfolio manager seeks to identify companies that
            are gaining market share, have superior management and possess a
            sustainable competitive advantage, such as superior or innovative
            products, personnel and distribution systems. The Fund looks to
            sell a stock when the portfolio manager believes that its
            earnings, market sentiment or relative performance are
            disappointing or if an alternative investment is more attractive.
            The Fund is "non-diversified," which means that it invests in a
            relatively small number of issuers.

             The Fund may also invest to a limited degree in other kinds of
            equity securities, including preferred stocks and convertible
            securities. The Fund may invest up to 25% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). The Fund has in the past invested a
            significant portion of its assets in technology or technology-
            related companies, although there is no assurance that it will
            continue to do so in the future. In response to unfavorable market
            and other conditions, the Fund may make temporary investments of
            some or all of its assets in high-quality fixed income securities.
            This would be inconsistent with the Fund's investment objective
            and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

          . Market Risk          . Focused Investment Risk   . Currency Risk
          . Issuer Risk          . Growth Securities Risk    . Credit Risk
          . Technology Related   . Foreign Investment Risk   . Management Risk
          Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart, the information to its
            right and the Average Annual Total Returns table show performance
            of the Fund's Institutional Class shares, which are offered in a
            different prospectus. This is because the Fund did not offer Class
            D shares during the periods shown. Although Class D and
            Institutional Class shares would have similar annual returns
            (because all the Fund's shares represent interests in the same
            portfolio of securities), Class D performance would be lower than
            Institutional Class performance because of the higher expenses
            paid by Class D shares.

            The Average Annual Total Returns table also shows estimated
            historical performance for Class D shares. The estimated Class D
            performance is based on the performance of the Fund's
            Institutional Class shares, adjusted to reflect the actual
            distribution and/or service (12b-1) fees and other expenses paid
            by Class D shares.

            The performance information on the next page for periods prior to
            April 1, 2000 reflects the Fund's advisory fee rate in effect
            prior to that date (0.57% per annum); these results would have
            been lower had the Fund's current advisory fee rate (0.60% per
            annum) then been in effect. Prior to July 1, 1999, the Fund had a
            different sub-adviser and would not necessarily have achieved the
            performance results shown on the next page under its current
            investment management arrangements. In addition, the Fund changed
            its investment objective and policies on April 1, 2000; the
            performance results shown on the next page would not necessarily
            have been achieved had the Fund's current objective and policies
            then been in effect. Past performance is no guarantee of future
            results.

21 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Select Growth Fund (continued)

            Calendar Year Total Returns -- Institutional Class


                                                            More Recent Return
                                                            Information
                                                            --------------------
                                                            1/1/00 -
                                                             9/30/00      16.44%
                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (10/1/98-
                                                            12/31/98)     24.90%
                                                            --------------------
                                                            Lowest (7/1/98-
                                                            9/30/98)     -11.38%

                                    [GRAPH]

                                 Annual Return

                   95        96        97        98        99
                27.96%    17.95%    25.32%    41.06%    24.27%

                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                                    Fund Inception
                                                     1 Year 5 Years (12/28/94)(/3/)
            -----------------------------------------------------------------------
         <S>                                         <C>    <C>     <C>
         Institutional Class                         24.27% 27.09%  27.06%
            -----------------------------------------------------------------------
         Class D                                     23.78% 26.59%  26.57%
            -----------------------------------------------------------------------
         S&P 500 Index(/1/)                          21.04% 28.56%  28.56%
            -----------------------------------------------------------------------
         Lipper Large-Cap Growth Funds Average(/2/)  40.54% 29.41%  29.41%
            -----------------------------------------------------------------------
</TABLE>
            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Large-Cap Growth Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest primarily in companies with market
                capitalizations of greater than 300% of the dollar-weighted
                median market capitalization of the S&P Mid-Cap 400 Index. It
                does not take into account sales charges.
            (3) The Fund began operations on 12/28/94. Index comparisons begin
                on 12/31/94.

--------------------------------------------------------------------------------
Fees and
Expenses    These tables describe the fees and expenses you may pay if you buy
of the      and hold Class D shares of the Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                            Distribution                    Total Annual
                  Advisory  and/or Service    Other         Fund Operating
                  Fees(/1/) (12b-1) Fees(/2/) Expenses(/3/) Expenses
            ------------------------------------------------------------------
         <S>      <C>       <C>               <C>           <C>
         Class D  0.60      0.25%             0.40%         1.25%
            ------------------------------------------------------------------
</TABLE>
            (1) On April 1, 2000, the Fund's advisory fee rate increased by
                0.03%, to 0.60% per annum.
            (2) 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. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.65% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees 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.
            (3) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<TABLE>
<CAPTION>
                  Year 1    Year 3            Year 5        Year 10
            ------------------------------------------------------------------
         <S>      <C>       <C>               <C>           <C>
         Class D  $127      $397              $686          $1,511
            ------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 22
<PAGE>

            PIMCO Allianz Select International Fund

--------------------------------------------------------------------------------
Principal     Investment           Fund                   Approximate
Investments   Objective            Focus                  Capitalization
and           Seeks capital        Common stocks of       Range
Strategies    appreciation         non-U.S. issuers       More than $1
                                                          billion
              Fund                 Approximate Number
              Category             of Holdings            Dividend
              International        30-60                  Frequency
              Stocks                                      At least
                                                          annually

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in an international portfolio
            of common stocks and other equity securities of companies located
            outside of the United States. Although the Fund normally invests
            in issuers from at least five different countries, it may at times
            invest in fewer than five countries, or even a single country. The
            Fund typically invests in approximately 30 to 60 stocks. Although
            the Fund invests primarily in developed market countries, it may
            also invest in developing, or "emerging," markets. The Fund has no
            other limits on geographic asset distribution and may invest in
            any foreign securities market in the world. The Fund may also
            invest in securities of foreign issuers traded on U.S. securities
            markets, but will normally not invest in U.S. issuers. The Fund
            invests most of its assets in foreign securities which trade in
            currencies other than the U.S. dollar and may invest directly in
            foreign currencies.

             The portfolio manager selects securities for the Fund using a
            research-driven "bottom-up" approach that seeks to utilize the
            Sub-Adviser's global research capabilities to identify companies
            with above-average long-term growth prospects and attractive
            valuations and that possess a sustainable competitive advantage,
            such as superior or innovative products, personnel and
            distribution systems. The portfolio manager seeks to select those
            stocks with the best long-term performance expectations, using a
            broad range of company fundamentals, such as long-term growth
            prospects, price-to-earnings ratios and other valuation measures,
            dividend and profit growth, balance sheet strength and return on
            assets. The portfolio managers sell stocks in order to adjust or
            rebalance the Fund's portfolio and to replace companies with
            weakening fundamentals.

             The Fund may invest a portion of its assets in the securities of
            small and medium capitalization companies. The Fund may utilize
            foreign currency exchange contracts and derivative instruments
            (such as stock index futures contracts), primarily for portfolio
            management and hedging purposes. The Fund may to a limited degree
            invest in equity securities other than common stocks (such as
            equity-linked securities, preferred stocks and convertible
            securities) and may invest up to 10% of its assets in other
            investment companies. In response to unfavorable market and other
            conditions, the Funds may make temporary investments of some or
            all of its assets in foreign and domestic fixed income securities
            and in equity securities of U.S. issuers. This would be
            inconsistent with the Fund's investment objective and principal
            strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>
           <S>             <C>                       <C>
           .  Foreign      .  Growth Securities Risk .  Focused Investment Risk
              Investment
              Risk
           .  Emerging     .  Value Securities Risk  .  Leveraging Risk
              Market Risk
           .  Currency     .  Smaller Company Risk   .  Credit Risk
              Risk
           .  Market Risk  .  Liquidity Risk         .  Management Risk
           .  Issuer Risk  .  Derivatives Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart, the information to its
            right and the Average Annual Total Returns table shows performance
            of the Fund's Institutional Class shares, which are offered in a
            different prospectus. This is because the Fund did not offer Class
            D shares during the periods shown. Although Class D and
            Institutional Class shares would have similar annual returns
            (because all the Fund's shares represent interests in the same
            portfolio of securities), Class D performance would be lower than
            Institutional Class performance because of the higher expenses
            paid by Class D shares.

            The Average Annual Total Returns table also shows estimated
            historical performance for Class D shares. The estimated Class D
            performance is based on performance of the Fund's Institutional
            Class shares, adjusted to reflect the actual distribution and/or
            service (12b-1) fees and other expenses paid by Class D shares.

23 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Allianz Select International Fund (continued)

            The performance information for periods prior to May 8, 2000
            reflects the Fund's advisory fee rate in effect prior to that date
            (0.85% per annum), which is higher than the current rate (0.75%
            per annum). Prior to November 1, 2000, the Fund had different sub-
            advisers and would not necessarily have achieved the performance
            results shown on the next page under its current investment
            management arrangements. In addition, the Fund changed its
            investment objective and policies on November 1, 2000; the
            performance results shown on the next page would not necessarily
            have been achieved had the Fund's current objective and policies
            then been in effect. Past performance is no guarantee of future
            results.

            Calendar Year Total Returns -- Institutional Class


                                                           More Recent Return
                                                           Information
[GRAPH]                                                    --------------------
                                                           1/1/00-9/30/00
ANNUAL RETURN                                                           -14.71%

'98    39.40%                                              Highest and Lowest
'99   109.71%                                              Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (10/1/99-
                                                           12/31/99)      47.11%
                                                           --------------------
                                                           Lowest (7/1/98-
                                                           9/30/98)     -17.78%

                   Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                                  Fund Inception
                                                    1 Year        (12/31/97)(/3/)
            ---------------------------------------------------------------------
         <S>                                        <C>           <C>
         Institutional Class                        109.71%       70.98%
            ---------------------------------------------------------------------
         Class D                                    108.72%       70.32%
            ---------------------------------------------------------------------
         MSCI EAFE Index(/1/)                        27.30%       23.77%
            ---------------------------------------------------------------------
         Lipper International Fund Average(/2/)      40.76%       25.87%
            ---------------------------------------------------------------------
</TABLE>

            (1) The Morgan Stanley Capital International EAFE (Europe,
                Australia, Far East) ("MSCI EAFE") Index is a widely
                recognized, unmanaged index of issuers in countries of Europe,
                Australia and the Far East. It is not possible to invest
                directly in the index.
            (2) The Lipper International Fund Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest their assets in securities whose
                primary trading markets are outside of the United States. It
                does not take into account sales charges.
            (3) The Fund began operations on 12/31/97. Index comparisons begin
                on 12/31/97.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment) None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                            Distribution                    Total Annual
                  Advisory  and/or Service    Other         Fund Operating
                  Fees(/1/) (12b-1) Fees(/2/) Expenses(/3/) Expenses
            ------------------------------------------------------------------
         <S>      <C>       <C>               <C>           <C>
         Class D  0.75%     0.25%             0.70%         1.70%
            ------------------------------------------------------------------

            (1) On May 8, 2000, the Fund's advisory fee rate decreased by
                0.10%, to 0.75% per annum.
            (2) 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. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.95% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees 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.
            (3) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that its not reflected under Distribution
                and/or Service (12b-1) Fees.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<CAPTION>
                  Year 1    Year 3            Year 5        Year 10
            ------------------------------------------------------------------
         <S>      <C>       <C>               <C>           <C>
         Class D  $173      $536              $923          $2,009
            ------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 24

<PAGE>

            PIMCO Target Fund

--------------------------------------------------------------------------------
<TABLE>
<S>           <C>                 <C>                   <C>
Principal     Investment          Fund Focus            Approximate
Investments   Objective           Medium                Capitalization
and           Seeks capital       capitalization        Range
Strategies    appreciation; no    common stocks         Between $1
              consideration is                          billion and $10
              given to income                           billion

              Fund Category       Approximate           Dividend
              Growth Stocks       Number of             Frequency
                                  Holdings              At least annually
                                  40-60
</TABLE>
            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of "growth"
            companies with market capitalizations of between $1 billion and
            $10 billion at the time of investment.

             The portfolio managers select stocks for the Fund using a
            "growth" style. The portfolio managers seek to identify companies
            with well-defined "wealth creating" characteristics, including
            superior earnings growth (relative to companies in the same
            industry or the market as a whole), high profitability and
            consistent, predictable earnings. In addition, through fundamental
            research, the portfolio managers seek to identify companies that
            are gaining market share, have superior management and possess a
            sustainable competitive advantage, such as superior or innovative
            products, personnel and distribution systems. The Fund looks to
            sell a stock when the portfolio managers believe that its
            earnings, market sentiment or relative performance are
            disappointing or if an alternative investment is more attractive.

             The Fund may also invest to a limited degree in other kinds of
            equity securities, including preferred stocks and convertible
            securities. The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADRs). The Fund has in the past invested a
            significant portion of its assets in technology or technology-
            related companies, although there is no assurance that it will
            continue to do so in the future.

             In response to unfavorable market and other conditions, the Fund
            may make temporary investments of some or all of its assets in
            high-quality fixed income securities. This would be inconsistent
            with the Fund's investment objective and principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

<TABLE>
              <S>                    <C>                      <C>
              . Market Risk          . Liquidity Risk         . Focused
              . Issuer Risk          . Foreign Investment       Investment Risk
              . Growth Securities      Risk                   . Credit Risk
                Risk                 . Currency Risk          . Management
              . Smaller Company Risk . Technology Related       Risk
                                       Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. The bar chart, the information to its
            right and the Average Annual Total Returns table show performance
            of the Fund's Class A shares, which are offered in a different
            prospectus. This is because the Fund did not offer Class D shares
            during the periods listed. Although Class D and Class A shares
            would have similar annual returns (because all of the Fund's
            shares represent interests in the same portfolio of securities),
            Class D performance would be higher than Class A performance
            because Class D shares do not pay any sales charges (loads). The
            Class A performance in the bar chart and the information to its
            right do not reflect the impact of sales charges. If they did, the
            returns would be lower than those shown. Unlike the bar chart,
            performance for Class A shares in the Average Annual Total Returns
            table reflects the impact of sales charges.

            The Average Annual Total Returns table also shows estimated
            historical performance for Class D shares based on the performance
            of the Fund's Class A shares, adjusted to reflect that there are
            no sales charges paid by Class D shares. Prior to March 6, 1999,
            the Fund had a different sub-adviser and would not necessarily
            have achieved the performance results shown on the next page under
            its current investment management arrangements. Past performance
            is no guarantee of future results.

25 PIMCO Funds: Multi-Manager Series

<PAGE>

            PIMCO Target Fund (continued)

            Calendar Year Total Returns -- Class A


                                                           More Recent Return
                                                           Information
                                                           --------------------
                                                           1/1/00 -
                                                           9/30/00       40.50%

                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (10/1/99-
                                                           12/31/99)     53.05%
                                                           --------------------
                                                           Lowest (7/1/98-
                                                           9/30/98)     -13.15%

                                    [GRAPH]

                                 Annual Return

                           1993              24.52%
                           1994               3.09%
                           1995              30.31%
                           1996              15.68%
                           1997              15.44%
                           1998              23.27%
                           1999              66.25%


                  Calendar Year End (through 12/31/99)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                                 Fund Inception
                                          1 Year     5 Years     (12/17/92)(/3/)
            --------------------------------------------------------------------
         <S>                              <C>        <C>         <C>
         Class A                          57.10%     28.28%      24.13%
            --------------------------------------------------------------------
         Class D                          66.25%     29.74%      25.13%
            --------------------------------------------------------------------
         S&P Mid-Cap 400 Index(/1/)       14.73%     23.05%      17.55%
            --------------------------------------------------------------------
         Lipper Multi-Cap Growth Funds
          Average(/2/)                    57.98%     28.51%      20.93%
            --------------------------------------------------------------------
</TABLE>

            (1) The S&P Mid-Cap 400 Index is an unmanaged index of middle
                capitalization U.S. stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Multi-Cap Growth Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest in companies with a variety of
                capitalization ranges without concentrating in any one market
                capitalization range over an extended period of time. It does
                not take into account sales charges.
            (3) The Fund began operations on 12/17/92. Index comparisons begin
                on 12/31/92.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.55%      0.25%               0.40%           1.20%
            --------------------------------------------------------------------

</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. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.65% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds-- Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees 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.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<TABLE>
<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $122       $381                $660            $1,455
            --------------------------------------------------------------------
</TABLE>

                                                                  Prospectus  26
<PAGE>

            PIMCO Tax-Efficient Equity Fund

--------------------------------------------------------------------------------
<TABLE>
<S>  <C>
Principal     Investment           Fund Focus             Approximate Capitalization Range
Investments   Objective            A portion of the       More than $5 billion
and           Seeks maximum        common stocks
Strategies    after-tax            represented in the S&P
              growth of            500 Index
              capital

                                                          Dividend Frequency
              Fund                 Approximate Number     At least annually
              Category             of Holdings
              Enhanced Index       More than
                                   200

</TABLE>

            The Fund attempts to provide a total return which exceeds the
            return of the S&P 500 Index by investing in a broadly diversified
            portfolio of at least 200 common stocks. The Fund also attempts to
            achieve higher after-tax returns for its shareholders by using a
            variety of tax-efficient management strategies.

             The Fund seeks to achieve its investment objective by normally
            investing at least 95% of its assets in stocks represented in the
            S&P 500 Index. The Fund's portfolio is designed to have certain
            characteristics that are similar to those of the index, including
            such measures as dividend yield, P/E ratio, relative volatility,
            economic sector exposure, return on equity and market price-to-
            book value ratio. The Fund's return is intended to correlate
            highly with the return of the S&P 500 Index, but the portfolio
            managers attempt to produce a higher total return than the index
            by selecting a portion of the stocks represented in the index
            using the quantitative techniques described below. The portfolio
            managers also use these techniques to make sell decisions.
            Notwithstanding these strategies, there is no assurance that the
            Fund's investment performance will equal or exceed that of the S&P
            500 Index.

             The Fund intends to be fully invested in common stock (aside from
            certain cash management practices) and will not make defensive
            investments in response to unfavorable market and other
            conditions.

             Quantitative Techniques. The portfolio managers use a proprietary
            quantitative model that ranks companies based on long-term (5-10
            years) price appreciation potential. They analyze factors such as
            growth of sustainable earnings and dividend behavior. Stocks in
            the top 50% of the model's ranking are considered for purchase by
            the Fund. The Fund looks to sell stocks selected from the bottom
            20% of the model's ranking based on cost, current market value and
            anticipated benefit of replacement. The portfolio managers' sell
            discipline also focuses on reducing realized capital gains as
            indicated below.

             Tax-Efficient Strategies. The portfolio managers utilize a range
            of active tax management strategies designed to minimize the
            Fund's taxable distributions, including low portfolio turnover and
            favoring investments in low-dividend, growth-oriented companies.
            The portfolio managers also identify specific shares of stock to
            be sold that have the lowest tax cost. When prudent, stocks are
            also sold to realize capital losses in order to offset realized
            capital gains. In limited circumstances, the Fund may also
            distribute appreciated securities to shareholders to meet
            redemption requests so as to avoid realizing capital gains.
            Despite the use of these tax-efficient strategies, the Fund may
            realize gains and shareholders will incur tax liability from time
            to time.

--------------------------------------------------------------------------------
Principal Risks
            Among the principal risks of investing in the Fund, which could
            adversely affect its net asset value, yield and total return, are:

<TABLE>
<S>  <C>
              . Market Risk            . Growth Securities Risk     . Credit Risk
              . Issuer Risk            . Leveraging Risk            . Management Risk
              . Value Securities Risk  . Focused Investment Risk
</TABLE>

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. Past performance is no guarantee of future
            results.

27 PIMCO Funds: Multi-Manager Series
<PAGE>


            PIMCO Tax-Efficient Equity Fund (continued)

            Calendar Year Total Returns -- Class D


                                                           More Recent Return
                                                           Information
                                                           --------------------
                                                           1/1/00 - 9/30/00
                                                           -2.67%

                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (10/1/99-
                                                           12/31/99)     14.90%
                                                           --------------------
                                                           Lowest (07/01/99-
                                                           09/30/99)     -7.33%

                                    [GRAPH]

                                 Annual Return

                                       99
                                    17.19%

                   Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                                   Fund Inception
                                                      1 Year       (7/10/98)(/3/)
            ---------------------------------------------------------------------
         <S>                                          <C>          <C>
         Class D                                      17.19%       15.30%
            ---------------------------------------------------------------------
         S&P 500 Index(/1/)                           21.04%       20.42%
            ---------------------------------------------------------------------
         Lipper Large-Cap Core Funds Average(/2/)     22.77%       20.65%
            ---------------------------------------------------------------------
</TABLE>

            (1) The S&P 500 Index is an unmanaged index of large
                capitalization common stocks. It is not possible to invest
                directly in the index.
            (2) The Lipper Large-Cap Core Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest primarily in companies with market
                capitalizations of greater than 300% of the dollar-weighted
                median market capitalization of the S&P Mid-Cap 400 Index. It
                does not take into account sales charges.
            (3) The Fund began operations on 7/10/98. Index comparisons begin
                on 6/30/98.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment) None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.45%      0.25%               0.41%           1.11%
            --------------------------------------------------------------------

</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. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.65% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees 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.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees and 0.01% in other expenses
                attributable to that class during the most recent fiscal year.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<TABLE>
<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $113       $353                $612            $1,352
            --------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 28
<PAGE>

            PIMCO Value Fund

--------------------------------------------------------------------------------
<TABLE>
<S>  <C>
Principal     Investment Objective Fund Focus             Approximate Capitalization Range
Investments   Seeks long-term      Undervalued larger     More than $5 billion
and           growth of            capitalization
Strategies    capital and          stocks with improving
              income               business
                                   fundamentals

              Fund Category        Approximate Number     Dividend Frequency
              Value Stocks         of Holdings            At least
                                   40                     annually

</TABLE>

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with market capitalizations of more than $5 billion at the time of
            investment and below-average valuations whose business
            fundamentals are expected to improve. To achieve income, the Fund
            invests a portion of its assets in income-producing (e.g.,
            dividend-paying) common stocks.

             The portfolio manager selects stocks for the Fund using a "value"
            style. The portfolio manager invests primarily in stocks of
            companies having below-average valuations whose business
            fundamentals are expected to improve. The portfolio manager
            determines valuation based on characteristics such as price-to-
            earnings, price-to-book, and price-to-cash flow ratios. The
            portfolio manager analyzes stocks and seeks to identify the key
            drivers of financial results and catalysts for change, such as new
            management and new or improved products, that indicate a company
            may demonstrate improving fundamentals in the future. The
            portfolio manager looks to sell a stock when he believes that the
            company's business fundamentals are weakening or when the stock's
            valuation has become excessive.

             The Fund may also invest to a limited degree in other kinds of
            equity securities, including preferred stocks and convertible
            securities. The Fund may invest up to 15% of its assets in foreign
            securities, except that it may invest without limit in American
            Depository Receipts (ADR's). In response to unfavorable market and
            other conditions, the Fund may make temporary investments of some
            or all of its assets in high-quality fixed income securities. This
            would be inconsistent with the Fund's investment objective and
            principal strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              . Market Risk        . Foreign Investment     . Credit Risk
              . Issuer Risk        Risk                     . Management Risk
              . Value Securities   . Currency Risk
              Risk                 .Focused Investment
                                   Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The top of the next page shows summary performance information for
Information the Fund in a bar chart and an Average Annual Total Returns table.
            The information provides some indication of the risks of investing
            in the Fund by showing changes in its performance from year to
            year and by showing how the Fund's average annual returns compare
            with the returns of a broad-based securities market index and an
            index of similar funds. For periods prior to the inception of the
            Fund's Class D shares (4/8/98), performance information shown in
            the bar chart (including the information to its right) and the
            Average Annual Total Returns table show performance of the Fund's
            Institutional Class shares, which are offered in a different
            prospectus. The prior Institutional Class performance has been
            adjusted to reflect the actual distribution and/or service (12b-1)
            fees and other expenses paid by Class D shares. Prior to May 8,
            2000, the Fund had a different sub-adviser and would not
            necessarily have achieved the performance results shown on the
            next page under its current investment management arrangements.
            Past performance is no guarantee of future results.

29 PIMCO Funds: Multi-Manager Series
<PAGE>

            PIMCO Value Fund (continued)

            Calendar Year Total Returns --  Class D


                                                           More Recent Return
                                                           Information
                                                           --------------------
                                                           1/1/00 -
                                                           9/30/00       12.80%

                                                           Highest and Lowest
                                                           Quarter Returns
                                                           (for periods shown
                                                           in the bar chart)
                                                           --------------------
                                                           Highest (4/1/99-
                                                           6/30/99)      17.76%
                                                           --------------------
                                                           Lowest (7/1/98-
                                                           9/30/98)     -13.27%

                                    [GRAPH]

                                 Annual Return

           92      93      94      95      96      97      98      99
        12.70%  15.95%  -4.45%  38.37%  19.87%  25.71%   9.86%   3.88%

                   Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)

<TABLE>
<CAPTION>
                                                                 Fund Inception
                                          1 Year     5 Years     (12/30/91)(/3/)
            --------------------------------------------------------------------
         <S>                              <C>        <C>         <C>
         Class D                          3.88%      18.93%      14.67%
            --------------------------------------------------------------------
         Russell 1000 Value Index(/1/)    7.34%      23.08%      17.85%
            --------------------------------------------------------------------
         Lipper Multi-Cap Value Funds
          Average(/2/)                    6.69%      18.32%      14.24%
            --------------------------------------------------------------------
</TABLE>

            (1) The Russell 1000 Value Index is an unmanaged index that
                measures the performance of companies in the Russell 1000
                Index considered to have less than average growth orientation.
                It is not possible to invest directly in the index. The
                Russell 1000 Value Index replaced the S&P 500 Index (an
                unmanaged index of large capitalization common stocks) as the
                Fund's comparative index because PIMCO Advisors believes that
                the Russell 1000 Value Index is more representative of the
                Fund's investment strategies. For periods ended December 31,
                1999, the 1 Year, 5 Year and Fund Inception average annual
                total returns of the S&P 500 Index were 21.04%, 28.56% and
                19.70%, respectively.
            (2) The Lipper Multi-Cap Value Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest in companies with a variety of
                capitalization ranges, without concentrating in any one market
                capitalization range over an extended period of time. It does
                not take into account sales charges.
            (3) The Fund began operations on 12/30/91. Fund comparisons begin
                on 12/31/91.

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class D shares of the Fund:
of the
Fund

            Shareholder Fees (fees paid directly from your investment) None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets)

<TABLE>
<CAPTION>
                              Distribution                        Total Annual
                   Advisory   and/or Service      Other           Fund Operating
                   Fees       (12b-1) Fees(/1/)   Expenses(/2/)   Expenses
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   0.45%      0.25%               0.41%           1.11%
            --------------------------------------------------------------------

</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. Up to 0.25% per year of the total
                Administrative Fee paid under the administration agreement may
                be Distribution and/or Service (12b-1) Fees. The Fund will pay
                a total of 0.65% per year under the administration agreement
                regardless of whether a portion or none of the 0.25%
                authorized under the plan is paid under the plan. Please see
                "Management of the Funds--Administrative Fees" for details.
                The Fund intends to treat any fees paid under the plan as
                "service fees" for purposes of applicable rules of the
                National Association of Securities Dealers, Inc. (the "NASD").
                To the extent that such fees 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.
            (2) Other Expenses reflects the portion of the Administrative Fee
                paid by the class that is not reflected under Distribution
                and/or Service (12b-1) Fees and 0.01% in other expenses
                attributable to the class during the most recent fiscal year.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class D shares of the Fund with the costs of
            investing in other mutual funds. The Examples assume that you
            invest $10,000 in Class D shares for the time periods indicated,
            and then redeem all your shares at the end of those periods. The
            Examples also assume that your investment has a 5% return each
            year, the reinvestment of all dividends and distributions, and the
            Fund's operating expenses remain the same. Although your actual
            costs may be higher or lower, the Examples show what your costs
            would be based on these assumptions.

<TABLE>
<CAPTION>
                   Year 1     Year 3              Year 5          Year 10
            --------------------------------------------------------------------
         <S>       <C>        <C>                 <C>             <C>
         Class D   $113       $353                $612            $1,352
            --------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 30
<PAGE>

            Summary of Principal Risks

            The value of your investment in a Fund changes with the values of
            that Fund's investments. Many factors can affect those values. The
            factors that are most likely to have a material effect on a
            particular Fund's portfolio as a whole are called "principal
            risks." The principal risks of each Fund are identified in the
            Fund Summaries and are summarized in this section. Each Fund may
            be subject to additional principal risks and risks other than
            those described below because the types of investments made by
            each Fund can change over time. Securities and investment
            techniques mentioned in this summary and described in greater
            detail under "Characteristics and Risks of Securities and
            Investment Techniques" appear in bold type. That section and
            "Investment Objectives and Policies" in the Statement of
            Additional Information also include more information about the
            Funds, their investments and the related risks. There is no
            guarantee that a Fund will be able to achieve its investment
            objective.

Market      The market price of securities owned by a Fund may go up or down,
Risk        sometimes rapidly or unpredictably. Each of the Funds normally
            invests most of its assets in common stocks and/or other equity
            securities. A principal risk of investing in each Fund is that the
            equity securities in its portfolio will decline in value due to
            factors affecting equity securities markets generally or
            particular industries represented in those markets. The values of
            equity securities may decline due to general market conditions
            which are not specifically related to a particular company, such
            as real or perceived adverse economic conditions, changes in the
            general outlook for corporate earnings, changes in interest or
            currency rates or adverse investor sentiment generally. They may
            also decline due to factors which affect a particular industry or
            industries, such as labor shortages or increased production costs
            and competitive conditions within an industry. Equity securities
            generally have greater price volatility than fixed income
            securities.

Issuer      The value of a security may decline for a number of reasons which
Risk        directly relate to the issuer, such as management performance,
            financial leverage and reduced demand for the issuer's goods or
            services.

Value       Each Fund may invest in companies that may not be expected to
Securities  experience significant earnings growth, but whose securities its
Risk        portfolio manager believes are selling at a price lower than their
            true value. The Capital Appreciation, Equity Income, Growth &
            Income, Mid-Cap, Renaissance, Allianz Select International, Tax-
            Efficient Equity and Value Funds may place particular emphasis on
            value securities. Companies that issue value securities may have
            experienced adverse business developments or may be subject to
            special risks that have caused their securities to be out of
            favor. If a portfolio manager's assessment of a company's
            prospects is wrong, or if the market does not recognize the value
            of the company, the price of its securities may decline or may not
            approach the value that the portfolio manager anticipates.

Growth      Each Fund may invest in equity securities of companies that its
Securities  portfolio manager believes will experience relatively rapid
Risk        earnings growth. The Capital Appreciation, Global Innovation,
            Growth, Growth & Income, Innovation, Mid-Cap, Select Growth,
            Allianz Select International, Target and Tax-Efficient Equity
            Funds may place particular emphasis on growth securities. Growth
            securities typically trade at higher multiples of current earnings
            than other securities. Therefore, the values of growth securities
            may be more sensitive to changes in current or expected earnings
            than the values of other securities.

Smaller     The general risks associated with equity securities and liquidity
Company     risk are particularly pronounced for securities of companies with
Risk        smaller market capitalizations. These companies may have limited
            product lines, markets or financial resources or they may depend
            on a few key employees. Securities of smaller companies may trade
            less frequently and in lesser volume than more widely held
            securities and their values may fluctuate more sharply than other
            securities. They may also trade in the over-the-counter market or
            on a regional exchange, or may otherwise have limited liquidity.
            The Global Innovation and Innovation Funds generally have
            substantial exposure to this risk. The Growth & Income, Mid-Cap,
            Allianz Select International and Target Funds have significant
            exposure to this risk because they invest primarily in companies
            with medium-sized market capitalizations, which are smaller and
            generally less-seasoned than the largest companies.

IPO Risk
            The Funds, particularly the Global Innovation Fund, may purchase
            securities in initial public offerings (IPOs). These securities
            are subject to many of the same risks as investing in companies
            with smaller market capitalizations. Securities issued in IPOs
            have no trading history, and information about the companies may
            be available for very limited periods. In addition, the prices of
            securities sold in IPOs may be highly volatile. At any particular
            time or from time to time a Fund

31 PIMCO Funds: Multi-Manager Series
<PAGE>

            may not be able to invest in securities issued in IPOs, or invest
            to the extent desired, because, for example, only a small portion
            (if any) of the securities being offered in an IPO may be made
            available to the Fund. In addition, under certain market
            conditions a relatively small number of companies may issue
            securities in IPOs. Similarly, as the number of Funds to which IPO
            securities are allocated increases, the number of securities
            issued to any one Fund may decrease. The investment performance of
            a Fund during periods when it is unable to invest significantly or
            at all in IPOs may be lower than during periods when the Fund is
            able to do so. In addition, as a Fund increases in size, the
            impact of IPOs on the Fund's performance will generally decrease.

Liquidity   All of the Funds are subject to liquidity risk. Liquidity risk
Risk        exists when particular investments are difficult to purchase or
            sell, possibly preventing a Fund from selling such illiquid
            securities at an advantageous time or price. Funds with principal
            investment strategies that involve securities of companies with
            smaller market capitalizations, foreign securities, derivatives or
            securities with substantial market and/or credit risk tend to have
            the greatest exposure to liquidity risk.

Derivatives All Funds except the Capital Appreciation and Mid-Cap Funds may
Risk        use derivatives, which are financial contracts whose value depends
            on, or is derived from, the value of an underlying asset,
            reference rate or index. The various derivative instruments that
            the Funds may use are referenced under "Characteristics and Risks
            of Securities and Investment Techniques--Derivatives" in this
            Prospectus and described in more detail under "Investment
            Objectives and Policies" in the Statement of Additional
            Information. The Funds may sometimes use derivatives as part of a
            strategy designed to reduce exposure to other risks, such as
            interest rate or currency risk. The Funds may also use derivatives
            for leverage, which increases opportunities for gain but also
            involves greater risk of loss due to leveraging risk. A Fund's use
            of derivative instruments involves risks different from, or
            possibly greater than, the risks associated with investing
            directly in securities and other traditional investments.
            Derivatives are subject to a number of risks described elsewhere
            in this section, such as liquidity risk, market risk, credit risk
            and management risk. They also involve the risk of mispricing or
            improper valuation and the risk that changes in the value of the
            derivative may not correlate perfectly with the underlying asset,
            rate or index. In addition, a Fund's use of derivatives may
            increase or accelerate the amount of taxes payable by
            shareholders. A Fund investing in a derivative instrument could
            lose more than the principal amount invested. Also, suitable
            derivative transactions may not be available in all circumstances
            and there can be no assurance that a Fund will engage in these
            transactions to reduce exposure to other risks when that would be
            beneficial.

Sector      In addition to other risks, Funds that invest a substantial
Specific    portion of their assets in related industries (or "sectors") may
Risks       have greater risk because companies in these sectors may share
            common characteristics and may react similarly to market
            developments.
            Technology Related Risk. Because the Global Innovation and
            Innovation Funds concentrate their investments in companies which
            utilize innovative technologies, they are subject to risks
            particularly affecting those companies, such as the risks of short
            product cycles and rapid obsolescence of products and services,
            competition from new and existing companies, significant losses
            and/or limited earnings, security price volatility and limited
            operating histories. Other Funds may also be subject to these
            risks to the extent they invest their assets in technology or
            technology-related companies.

Foreign     A Fund that invests in foreign securities, and particularly the
(non-       Global Innovation and Allianz Select International Funds, may
U.S.)       experience more rapid and extreme changes in value than Funds that
Investment  invest exclusively in securities of U.S. issuers or securities
Risk        that trade exclusively in U.S. markets. The securities markets of
            many foreign countries are relatively small, with a limited number
            of companies representing a small number of industries.
            Additionally, issuers of foreign securities are usually not
            subject to the same degree of regulation as U.S. issuers.
            Reporting, accounting and auditing standards of foreign countries
            differ, in some cases significantly, from U.S. standards. Also,
            nationalization, expropriation or confiscatory taxation, currency
            blockage, political changes or diplomatic developments could
            adversely affect a Fund's investments in a foreign country. In the
            event of nationalization, expropriation or other confiscation, a
            Fund could lose its entire investment in foreign securities. To
            the extent that a Fund, such as the Global Innovation or Allianz
            Select International Fund, invest a significant portion of their
            assets in a narrowly defined area such as Europe, Asia or South
            America, the Fund will generally have more exposure to regional
            economic risks associated with foreign investments. Adverse
            developments in certain regions (such as Southeast Asia) can also
            adversely affect securities of other countries whose economies
            appear to be unrelated. In addition, special U.S. tax
            considerations may apply to a Fund's investment in foreign
            securities.

                                                                   Prospectus 32
<PAGE>

Emerging    Foreign investment risk may be particularly high to the extent
Markets     that a Fund invests in emerging market securities of issuers based
Risk        in countries with developing economies. These securities may
            present market, credit, currency, liquidity, legal, political and
            other risks different from, or greater than, the risks of
            investing in developed foreign countries. The Global Innovation
            and Allianz Select International Funds may invest a significant
            portion of their assets in emerging markets securities. In
            addition, the risks associated with investing in a narrowly
            defined geographic area (discussed above under "Foreign (non-U.S.)
            Investment Risk") are generally more pronounced with respect to
            investments in emerging market countries.

Currency    Funds that invest directly in foreign currencies and in securities
Risk        that trade in, or receive revenues in, foreign currencies are
            subject to the risk that those currencies will decline in value
            relative to the U.S. Dollar, or, in the case of hedging positions,
            that the U.S. Dollar will decline in value relative to the
            currency being hedged. The Global Innovation and Allianz Select
            International Funds are particularly sensitive to Currency Risk.
            Currency rates in foreign countries may fluctuate significantly
            over short periods of time for a number of reasons, including
            changes in interest rates, intervention (or the failure to
            intervene) by U.S. or foreign governments, central banks or
            supranational entities such as the International Monetary Fund, or
            by the imposition of currency controls or other political
            developments in the U.S. or abroad.

Focused     Focusing Fund investments in a small number of issuers, industries
Investment  or foreign currencies or regions increases risk. Funds, such as
Risk        the Select Growth Fund, that are "non-diversified" because they
            invest in a relatively small number of issuers may have more risk
            because changes in the value of a single security or the impact of
            a single economic, political or regulatory occurrence may have a
            greater adverse impact on the Fund's net asset value. Some of
            those issuers also may present substantial credit or other risks.
            The Global Innovation and Allianz Select International Funds may
            be subject to increased risk to the extent that they focus their
            investments in securities denominated in a particular foreign
            currency or in a narrowly defined geographic area outside the
            U.S., because companies in these areas may share common
            characteristics and are often subject to similar business risks
            and regulatory burdens, and their securities may react similarly
            to economic, market, political or other developments. Similarly,
            the Global Innovation and Innovation Funds are vulnerable to
            events affecting companies which use innovative technologies to
            gain a strategic, competitive advantage in their industry and
            companies that provide and service those technologies because
            these Funds normally "concentrate" their investments in those
            companies. Also, the Funds may from time to time have greater risk
            to the extent they invest a substantial portion of their assets in
            companies in related industries such as "technology" or "financial
            and business services," which may share common characteristics,
            are often subject to similar business risks and regulatory
            burdens, and whose securities may react similarly to economic,
            market, political or other developments.

Leveraging  Leverage, including borrowing, will cause the value of a Fund's
Risk        shares to be more volatile than if the Fund did not use leverage.
            This is because leverage tends to exaggerate the effect of any
            increase or decrease in the value of a Fund's portfolio
            securities. The Funds, and in particular the Global Innovation and
            Tax-Efficient Equity Funds, may engage in transactions or purchase
            instruments that give rise to forms of leverage. Such transactions
            and instruments may include, among others, the use of reverse
            repurchase agreements and other borrowings, the investment of
            collateral from loans of portfolio securities, or the use of when-
            issued, delayed-delivery or forward commitment transactions. The
            use of derivatives may also involve leverage. The use of leverage
            may also cause a Fund to liquidate portfolio positions when it
            would not be advantageous to do so in order to satisfy its
            obligations or to meet segregation requirements.

Interest    To the extent that Funds purchase fixed income securities for
Rate Risk   investment or defensive purposes, they will be subject to interest
            rate risk, a market risk relating to investments in fixed income
            securities such as bonds and notes. The Growth & Income Fund is
            particularly sensitive to this risk because it may invest in
            interest rate sensitive securities such as corporate bonds.

             As interest rates rise, the value of fixed income securities in a
            Fund's portfolio are likely to decrease. Securities with longer
            "durations" (defined below) tend to be more sensitive to changes
            in interest rates, usually making them more volatile than
            securities with shorter durations. Duration is a measure of the
            expected life of a fixed income security that is used to determine
            the sensitivity of a security's price to changes in interest
            rates. Generally, a Fund with a longer average portfolio duration
            will be more sensitive to changes in interest rates than a Fund
            with a shorter average portfolio duration.

33 PIMCO Funds: Multi-Manager Series
<PAGE>

Credit      All of the Funds are subject to credit risk. This is the risk that
Risk        the issuer or the guarantor of a fixed income security, or the
            counterparty to a derivatives contract, repurchase agreement or a
            loan of portfolio securities, is unable or unwilling to make
            timely principal and/or interest payments, or to otherwise honor
            its obligations. Securities are subject to varying degrees of
            credit risk, which are often reflected in their credit ratings.

High        Funds that invest in high yield securities and unrated securities
Yield       of similar quality (commonly known as "junk bonds") may be subject
Risk        to greater levels of interest rate, credit and liquidity risk than
            Funds that do not invest in such securities. The Growth & Income
            Fund is particularly susceptible to this risk. These securities
            are considered predominantly speculative with respect to the
            issuer's continuing ability to make principal and interest
            payments. An economic downturn or period of rising interest rates
            could adversely affect the market for these securities and reduce
            a Fund's ability to sell them .

Management  Each Fund is subject to management risk because it is an actively
Risk        managed investment portfolio. PIMCO Advisors, the Sub-Advisers and
            each individual portfolio manager will apply investment techniques
            and risk analyses in making investment decisions for the Funds,
            but there can be no guarantee that these will produce the desired
            results.

            Management of the Funds

Investment  PIMCO Advisors serves as the investment adviser and the
Adviser     administrator (serving in its capacity as administrator, the
and Ad-     "Administrator") for the Funds. Subject to the supervision of the
ministrator Board of Trustees, PIMCO Advisors is responsible for managing,
            either directly or through others selected by it, the investment
            activities of the Funds and the Funds' business affairs and other
            administrative matters.

             PIMCO Advisors is located at 800 Newport Center Drive, Newport
            Beach, California 92660. Organized in 1987, PIMCO Advisors
            provides investment management and advisory services to private
            accounts of institutional and individual clients and to mutual
            funds. As of September 30, 2000, PIMCO Advisors and its subsidiary
            partnerships had approximately $272 billion in assets under
            management.

             PIMCO Advisors has retained investment management firms ("Sub-
            Advisers") to manage the investments of the Capital Appreciation,
            Mid-Cap, Allianz Select International and Tax-Efficient Equity
            Funds. The PIMCO Equity Advisors division of PIMCO Advisors
            manages the investments of the Equity Income, Global Innovation,
            Growth, Growth & Income, Innovation, Renaissance, Select Growth,
            Target and Value Funds. (PIMCO Equity Advisors is also referred to
            as a "Sub-Adviser" in this capacity.) See "Sub-Advisers" below.

             PIMCO Advisors has retained its affiliate, Pacific Investment
            Management Company LLC ("Pacific Investment Management Company"),
            to provide various administrative and other services required by
            the Funds in its capacity as sub-administrator. PIMCO Advisors and
            the sub-administrator may retain other affiliates to provide
            certain of these services.

Advisory    Each Fund pays PIMCO Advisors fees in return for providing or
Fees        arranging for the provision of investment advisory services. In
            the case of Funds for which PIMCO Advisors has retained a separate
            Sub-Adviser, PIMCO Advisors (and not the Fund) pays a portion of
            the advisory fees it receives to the Sub-Adviser in return for its
            services.
                                                                   Prospectus 34
<PAGE>

             For the fiscal year ended June 30, 2000, the Funds paid monthly
            advisory fees to PIMCO Advisors at the following annual rates
            (stated as a percentage of the average daily net assets of each
            Fund taken separately):


<TABLE>
<CAPTION>
         Fund                                                Advisory Fees
            --------------------------------------------------------------
         <S>                                                 <C>
         Capital Appreciation, Equity Income, Mid-Cap, Tax-
          Efficient Equity and Value Funds                       0.45%
         Growth Fund                                             0.50%
         Target Fund                                             0.55%
         Renaissance and Select Growth Funds                     0.60%*
         Growth & Income Fund                                    0.63%*
         Innovation Fund                                         0.65%
         Allianz Select International Fund                       0.75%*
</TABLE>
            * On April 1, 2000, the advisory fee rate for the Select Growth
            Fund increased from 0.57% to 0.60% per annum. On May 8, 2000, the
            advisory fee rate for the Allianz Select International Fund
            decreased from 0.85% to 0.75% per annum. On August 1, 2000, the
            advisory fee rate for the Growth & Income Fund decreased from
            0.63% to 0.60% per annum.

             The Global Innovation Fund was not operational during the entire
            fiscal year ended June 30, 2000. The annual investment advisory
            fee rate payable by this Fund is 1.00% (stated as a percentage of
            the average daily net assets of the Fund).

Administrative
Fees
            Each Fund pays for the administrative services it requires under a
            fee structure which is essentially fixed. Class D shareholders of
            each Fund pay an administrative fee to PIMCO Advisors, computed as
            a percentage of the Fund's assets attributable in the aggregate to
            Class D shares. PIMCO Advisors, in turn, provides or procures
            administrative services for Class D shareholders and also bears
            the costs of most third-party services required by the Funds,
            including audit, custodial, portfolio accounting, legal, transfer
            agency and printing costs. The Funds do bear other expenses which
            are not covered under the administrative fee which may vary and
            affect the total level of expenses paid by Class D shareholders,
            such as brokerage fees, commissions and other transaction
            expenses, costs of borrowing money, including interest expenses,
            and fees and expenses of the Trust's disinterested Trustees.

             PIMCO Advisors or an affiliate may pay financial service firms a
            portion of the Class D administrative fees in return for the
            firms' services (normally not to exceed an annual rate of 0.35% of
            a Fund's average daily net assets attributable to Class D shares
            purchased through such firms).

             Class D shareholders of the Funds pay PIMCO Advisors monthly
            administrative fees at the following annual rates (stated as a
            percentage of the average daily net assets attributable in the
            aggregate to the Fund's Class D shares):


<TABLE>
<CAPTION>
         Fund                                           Administrative Fees*
            ----------------------------------------------------------------
         <S>                                            <C>
         Capital Appreciation, Equity Income, Growth,
          Innovation, Mid-Cap, Renaissance, Select
          Growth, Target, Tax-Efficient Equity and
          Value Funds                                           0.65%
         Growth & Income Fund                                   0.75%
         Global Innovation Fund                                 0.85%
         Allianz Select International Fund                      0.95%
</TABLE>

             *As described below under "12b-1 Plan for Class D Shares," the
             administration agreement includes a plan adopted in conformity
             with Rule 12b-1 under the Investment Company Act of 1940 (the
             "1940 Act") which provides for the payment of up to 0.25% of the
             0.65% (0.75% for the Growth & Income Fund, 0.85% for the Global
             Innovation Fund and 0.95% for the Allianz Select International
             Fund) Administrative Fee 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. In the Fund
             Summaries above, the "Annual Fund Operating Expenses" table
             provided under "Fees and Expenses of the Fund" for each Fund
             shows the 0.65% (0.75% for the Growth & Income Fund, 0.85% for
             the Global Innovation Fund and 0.95% for the Allianz Select
             International Fund) Administrative Fee rate under two separate
             columns entitled "Distribution and/or Service (12b-1) Fees"
             (0.25%) and "Other Expenses" (0.40%) (0.50% for the Growth &
             Income Fund, 0.60% for the Global Innovation Fund and 0.70% for
             the Select International Fund).

12b-1       The Funds' administration agreement includes a plan for Class D
Plan for    shares that has been adopted in conformity with the requirements
Class D     set forth in Rule 12b-1 under the 1940 Act. The plan provides that
Shares      up to 0.25% per annum of the Class D administrative fees paid
            under the administration agreement may represent 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. Because 12b-1 fees
            would be paid out of a Fund's Class D share assets on an ongoing
            basis, over time these fees would increase the cost of your
            investment in Class D shares and may cost you more than other
            types of sales charges.

35 PIMCO Funds: Multi-Manager Series
<PAGE>

Sub-        Each Sub-Adviser has full investment discretion and makes all
Advisers    determinations with respect to the investment of a Fund's assets.
            The following provides summary information about each Sub-Adviser,
            including the Fund(s) it manages.


<TABLE>
<CAPTION>
         Sub-Adviser*                 Funds
            -------------------------------------------------------------------------------------------------------------
         <S>                          <C>
         PIMCO Equity Advisors        Equity Income, Global Innovation, Growth, Growth & Income, Innovation, Renaissance,
         division of PIMCO Advisors   Select Growth, Target and Value
         ("PIMCO Equity Advisors")
         1345 Avenue of the
         Americas, 50th Floor
         New York, NY 10105

            -------------------------------------------------------------------------------------------------------------
         PIMCO/Allianz International  Allianz Select International
         Advisors LLC ("PAIA")
         1345 Avenue of the Americas
         50th Floor
         New York, NY 10105

            -------------------------------------------------------------------------------------------------------------
         Cadence Capital Management   Capital Appreciation and Mid-Cap
         ("Cadence")
         Exchange Place, 53 State
         Street
         Boston, MA 02109

            -------------------------------------------------------------------------------------------------------------
         Parametric Portfolio         Tax-Efficient Equity
         Associates
         ("Parametric")
         7310 Columbia Center
         701 Fifth Avenue
         Seattle, WA 98104
</TABLE>
            *PIMCO Equity Advisors is a division of PIMCO Advisors. PAIA is a
            wholly-owned subsidiary of PIMCO Advisors. Cadence and NFJ are
            affiliated sub-partnerships of PIMCO Advisors.

             The following provides additional information about each Sub-
            Adviser and the individual portfolio managers who have or share
            primary responsibility for managing the Funds' investments.

PIMCO       A division of PIMCO Advisors, PIMCO Equity Advisors provides
Equity      equity-related advisory services to mutual funds and institutional
Advisors    accounts. Accounts managed by PIMCO Equity Advisors had combined
            assets as of September 30, 2000 of approximately $14.5 billion.
            See "Investment Adviser and Administrator" above for additional
            information about PIMCO Advisors.

             The following individuals at PIMCO Equity Advisors have primary
            responsibility for the noted Funds. Different sub-advisory firms
            served as Sub-Adviser for the Growth, Innovation and Target Funds
            prior to March 6, 1999, for the Renaissance Fund prior to May 7,
            1999, for the Select Growth and Growth & Income Funds prior to
            July 1, 1999 and for the Equity Income and Value Funds prior to
            May 8, 2000.


<TABLE>
<CAPTION>
                                                            Recent Professional
         Fund              Portfolio Managers  Since        Experience
            ------------------------------------------------------------------------
         <C>               <C>                 <C>          <S>
         Equity Income     Kenneth W. Corba    2000         Managing Director and
                                                            Chief Investment Officer
                                                            of PIMCO Equity Advisors
                                                            and a Member of the
                                                            Management Board of
                                                            PIMCO Advisors. Prior to
                                                            joining PIMCO Advisors,
                                                            he was with Eagle Asset
                                                            Management from 1995 to
                                                            1998, serving in various
                                                            capacities including as
                                                            Chief Investment Officer
                                                            and Portfolio Manager.
                                                            He was with Stein Roe
                                                            and Farnham Inc. from
                                                            1984 to 1995, serving in
                                                            various capacities
                                                            including as Director of
                                                            the Capital Management
                                                            Group, Senior Vice
                                                            President and Portfolio
                                                            Manager.

         Global Innovation Dennis P. McKechnie 1999         Portfolio Manager of
                                               (Inception)+ PIMCO Equity Advisors.
                                                            Prior to joining PIMCO
                                                            Advisors, he was with
                                                            Columbus Circle
                                                            Investors from 1991 to
                                                            1999, where he managed
                                                            equity accounts and
                                                            served in various
                                                            capacities including as
                                                            Portfolio Manager for
                                                            the Innovation Fund.

                           Jiyoung Kim         2000         Senior Research Analyst
                                                            for PIMCO Innovation
                                                            Fund, where she covers
                                                            biotechnology,
                                                            telecommunications
                                                            equipment,
                                                            semiconductors and
                                                            networking. Prior to
                                                            joining PIMCO Equity
                                                            Advisors in 1999, she
                                                            was a Senior Research
                                                            Analyst at Fred Alger
                                                            Management from 1994 to
                                                            1999. Prior to that, she
                                                            was a Senior Research
                                                            Technician at Repligen,
                                                            a biopharmaceutical
                                                            company.

         Growth            Mr. Corba           1999         See above.

         Growth & Income   Mr. Corba           1999         See above.
                           Peter C. Thoms      2000         Investment Analyst at
                                                            Federated Investors from
                                                            July 1998 to May 1999.
                                                            Previously, he received
                                                            his M.B.A. at the
                                                            University of Virginia's
                                                            Darden School of
                                                            Business.
</TABLE>
                                                                   Prospectus 36
<PAGE>


<TABLE>
<CAPTION>
                                                                             Recent Professional
         Fund                         Portfolio Managers               Since Experience
            -----------------------------------------------------------------------------------------

         <C>                          <C>                              <C>   <S>
         Innovation                   Mr. McKechnie                    1998  See above.

         Renaissance                  John K. Schneider                1999  Senior Portfolio Manager
                                                                             of PIMCO Equity
                                                                             Advisors. Prior to
                                                                             joining PIMCO Advisors,
                                                                             he was a partner and
                                                                             Portfolio Manager of
                                                                             Schneider Capital
                                                                             Management from 1996 to
                                                                             1999, where he managed
                                                                             equity accounts for
                                                                             various institutional
                                                                             clients. Prior to that
                                                                             he was a member of the
                                                                             Equity Policy Committee
                                                                             and Director of Research
                                                                             at Newbold's Asset
                                                                             Management from 1991 to
                                                                             1996.
         Select Growth                Messrs. Corba and Schneider      1999  See above.

         Target                       Mr. Corba                        1999  See above.
                                      Jeff Parker                      1999  Assistant Portfolio
                                                                             Manager and Research
                                                                             Analyst for PIMCO Equity
                                                                             Advisors. Prior to
                                                                             joining PIMCO Equity
                                                                             Advisors, he managed
                                                                             equity accounts as an
                                                                             Assistant Portfolio
                                                                             Manager at Eagle Asset
                                                                             Management from 1996 to
                                                                             1998. He was a Senior
                                                                             Consultant with Andersen
                                                                             Consulting, specializing
                                                                             in healthcare and
                                                                             technology, from 1991 to
                                                                             1994.
         Value                        Mr. Schneider                    2000  See above.

</TABLE>

            -------
            + Prior to PIMCO Advisors and PIMCO Equity Advisors assuming their
              positions as Adviser and Sub-Adviser, respectively, of the
              Global Innovation Fund, Mr. McKechnie managed the Fund's
              portfolio in his capacity as an officer of the Trust.

PAIA        A wholly-owned subsidiary of PIMCO Advisors, PAIA provides
            international advisory services to mutual funds. PAIA commenced
            operations during the fourth quarter of 2000. Different firms
            served as sub-adviser to the Allianz Select International Fund
            prior to November 1, 2000.

             The following individuals at PAIA share primary responsibility
            for the Allianz Select International Fund.

<TABLE>
<CAPTION>
                                                                             Recent Professional
         Fund                         Portfolio Managers               Since Experience
            -----------------------------------------------------------------------------------------

         <C>                          <C>                              <C>   <S>
         Allianz Select International Udo Frank (lead manager)         2000  Managing Director and
                                                                             Chief Investment Officer
                                                                             of Allianz Asset
                                                                             Advisory and Management
                                                                             GmbH ("Allianz AAM"),
                                                                             responsible for the
                                                                             entire area (since
                                                                             1997), and Chief
                                                                             Executive Officer and
                                                                             Chief Investment Officer
                                                                             of Allianz PIMCO Asset
                                                                             Management. Previously,
                                                                             he served as the Chief
                                                                             Investment Officer of
                                                                             Allianz KAG (since
                                                                             1994).
                                      Wolfram Gerdes (co-manager)      2000  Managing Director of
                                                                             Equity Portfolio
                                                                             Management at Allianz
                                                                             AAM since 1998. Prior to
                                                                             joining Allianz AAM, he
                                                                             held various positions,
                                                                             including head of
                                                                             Portfolio Management,
                                                                             with Allianz
                                                                             Lebensversicherungs AG
                                                                             from 1992 to 1998.
                                      Gerd Wolfgang Hintz (co-manager) 2000  Managing Director of the
                                                                             Equity Research
                                                                             Department at Allianz
                                                                             AAM since 1998. In
                                                                             addition, he has been
                                                                             responsible for Allianz
                                                                             AAM's trading department
                                                                             since January 2000.
                                                                             Previously, he was the
                                                                             head of Research and
                                                                             Investor Relations of
                                                                             Allianz AG.
</TABLE>



37 PIMCO Funds: Multi-Manager Series
<PAGE>

Cadence     An affiliated sub-partnership of PIMCO Advisors, Cadence provides
            advisory services to mutual funds and institutional accounts.
            Cadence Capital Management Corporation, the predecessor investment
            adviser to Cadence, commenced operations in 1988. Accounts managed
            by Cadence had combined assets as of September 30, 2000 of
            approximately $6.8 billion.

             The following individuals at Cadence share primary responsibility
            for each of the noted Funds.


<TABLE>
<CAPTION>
                                                       Recent Professional
         Fund         Portfolio Managers  Since        Experience
            -------------------------------------------------------------------
         <C>          <C>                 <C>          <S>
         Capital      David B. Breed      1991         Managing Director, Chief
         Appreciation                     (Inception)  Executive Officer, Chief
                                                       Investment Officer and
                                                       founding partner of
                                                       Cadence. Member of the
                                                       Management Board of
                                                       PIMCO Advisors. He is a
                                                       research generalist and
                                                       has lead the team of
                                                       portfolio managers and
                                                       analysts since 1988. Mr.
                                                       Breed has managed
                                                       separate equity accounts
                                                       for many institutional
                                                       clients and has lead the
                                                       team that manages the
                                                       PIMCO Funds sub-advised
                                                       by Cadence since those
                                                       Funds' inception dates.

                      William B. Bannick  1992         Managing Director and
                                                       Executive Vice President
                                                       at Cadence. Mr. Bannick
                                                       is a research generalist
                                                       and Senior Portfolio
                                                       Manager for the Cadence
                                                       team. He has managed
                                                       separately managed
                                                       equity accounts for
                                                       various Cadence
                                                       institutional clients
                                                       and has been a member of
                                                       the team that manages
                                                       the PIMCO Funds sub-
                                                       advised by Cadence since
                                                       joining Cadence in 1992.

                      Katherine A. Burdon 1993         Managing Director and
                                                       Senior Portfolio Manager
                                                       at Cadence. Ms. Burdon
                                                       is a research generalist
                                                       and has managed
                                                       separately managed
                                                       equity accounts for
                                                       various Cadence
                                                       institutional clients
                                                       and has been a member of
                                                       the team that manages
                                                       the PIMCO Funds sub-
                                                       advised by Cadence since
                                                       joining Cadence in 1993.
                      Peter B. McManus    1994         Director, Account
                                                       Management at Cadence.
                                                       He has been a member of
                                                       the investment team at
                                                       Cadence and handles
                                                       client relationships of
                                                       separately managed
                                                       accounts, and has been a
                                                       member of the team that
                                                       manages the PIMCO Funds
                                                       sub-advised by Cadence
                                                       since joining Cadence in
                                                       1994. Previously, he
                                                       served as a Vice
                                                       President of Bank of
                                                       Boston from 1991
                                                       to 1994.

         Mid-Cap      Messrs. Breed,      Same as      See above.
                      Bannick and         Capital
                      McManus and         Appreciation
                      Ms. Burdon          Fund
</TABLE>

Parametric  An affiliated sub-partnership of PIMCO Advisors, Parametric
            provides advisory services to mutual funds and institutional
            accounts. Parametric Portfolio Associates, Inc., the predecessor
            investment adviser to Parametric, commenced operations in 1987.
            Accounts managed by Parametric had combined assets as of September
            30, 2000 of approximately $4.4 billion.

             The following individuals at Parametric share primary
            responsibility for the Tax-Efficient Equity Fund.


<TABLE>
<CAPTION>
                                                                  Recent Professional
         Fund                 Portfolio Managers Since            Experience
            ------------------------------------------------------------------------------
         <C>                  <C>                <C>              <S>
         Tax-Efficient Equity David Stein        1998 (Inception) Managing Director of
                                                                  Parametric. He also
                                                                  serves as a Senior
                                                                  Porfolio Manager of
                                                                  PIMCO Equity Advisors.
                                                                  He has been with
                                                                  Parametric since 1996
                                                                  where he leads the
                                                                  investment, research and
                                                                  product development
                                                                  activities. Previously,
                                                                  he served in Investment
                                                                  Research at GTE
                                                                  Corporation from 1995 to
                                                                  1996, in Equity Research
                                                                  at Vanguard Group from
                                                                  1994 to 1995 and in
                                                                  Investment Research at
                                                                  IBM Corporation from
                                                                  1977 to 1994.

                              Tom Seto           1998 (Inception) Vice President and
                                                                  Portfolio Manager of
                                                                  Parametric. Since
                                                                  joining Parametric in
                                                                  1998, he has been
                                                                  responsible for
                                                                  management of
                                                                  Parametric's active U.S.
                                                                  equity strategies and
                                                                  has managed structured
                                                                  equity portfolios.
                                                                  Previously, he was with
                                                                  Barclays global
                                                                  Investors from 1991 to
                                                                  1998, serving in various
                                                                  capacities including as
                                                                  head of U.S. Equity
                                                                  Index Investments and
                                                                  Portfolio Manager.
</TABLE>

Adviser/Sub- Shareholders of each Fund (except the Innovation and Mid-Cap
Adviser      Funds) have approved a proposal permitting PIMCO Advisors to enter
Relationship into new or amended sub-advisory agreements with one or more sub-
             advisers with respect to each Fund without obtaining shareholder
             approval of such agreements, subject to the conditions of an
             exemptive order that has been granted by the Securities and
             Exchange Commission. One of the conditions requires the Board of
             Trustees to approve any such agreement. In

                                                                   Prospectus 38
<PAGE>

            addition, the exemptive order prohibits PIMCO Advisors from
            entering into sub-advisory agreements with affiliates of PIMCO
            Advisors without shareholder approval, unless those affiliates are
            substantially wholly-owned by PIMCO Advisors. PIMCO Advisors has
            the ultimate responsibility to oversee the Sub-Advisers and to
            recommend their hiring, termination and replacement.

Distributor The Trust's Distributor is PIMCO Funds Distributors LLC, a wholly
            owned subsidiary of PIMCO Advisors. The Distributor, located at
            2187 Atlantic Street, Stamford, CT 06902, is a broker-dealer
            registered with the Securities and Exchange Commission.

            How Fund Shares Are Priced

            The net asset value ("NAV") of a Fund's Class D shares is
            determined by dividing the total value of a Fund's portfolio
            investments and other assets attributable to that class, less any
            liabilities, by the total number of shares outstanding of that
            class.

             For purposes of calculating NAV, portfolio securities and other
            assets for which market quotes are available are stated at market
            value. Market value is generally determined on the basis of last
            reported sales prices, or if no sales are reported, based on
            quotes obtained from a quotation reporting system, established
            market makers, or pricing services. Certain securities or
            investments for which daily market quotes are not readily
            available may be valued, pursuant to procedures established by the
            Board of Trustees, with reference to other securities or indices.
            Short-term investments having a maturity of 60 days or less are
            generally valued at amortized cost. Exchange traded options,
            futures and options on futures are valued at the settlement price
            determined by the exchange. Other securities for which market
            quotes are not readily available are valued at fair value as
            determined in good faith by the Board of Trustees or persons
            acting at their direction.

             Investments initially valued in currencies other than the U.S.
            dollar are converted to U.S. dollars using exchange rates obtained
            from pricing services. As a result, the NAV of a Fund's shares may
            be affected by changes in the value of currencies in relation to
            the U.S. dollar. The value of securities traded in markets outside
            the United States or denominated in currencies other than the U.S.
            dollar may be affected significantly on a day that the New York
            Stock Exchange is closed and an investor is not able to purchase,
            redeem or exchange shares. In particular, calculation of the NAV
            of the Global Innovation and Allianz Select International Funds
            may not take place contemporaneously with the determination of the
            prices of foreign securities used in NAV calculations.

             Fund shares are valued at the close of regular trading (normally
            4:00 p.m., Eastern time) (the "NYSE Close") on each day that the
            New York Stock Exchange is open. For purposes of calculating the
            NAV, the Funds normally use pricing data for domestic equity
            securities received shortly after the NYSE Close and do not
            normally take into account trading, clearances or settlements that
            take place after the NYSE Close. Domestic fixed income and foreign
            securities are normally priced using data reflecting the earlier
            closing of the principal markets for those securities. Information
            that becomes known to the Funds or their agents after the NAV has
            been calculated on a particular day will not generally be used to
            retroactively adjust the price of a security or the NAV determined
            earlier that day.

             In unusual circumstances, instead of valuing securities in the
            usual manner, the Funds may value securities at fair value or
            estimate their value as determined in good faith by the Board of
            Trustees or persons acting at their direction pursuant to
            procedures approved by the Board of Trustees. Fair valuation may
            also be used by the Board of Trustees if extraordinary events
            occur after the close of the relevant market but prior to the NYSE
            Close.

            How to Buy and Sell Shares

            The following section provides basic information about how to buy,
            sell (redeem) and exchange Class D shares of the Funds.


General       . Financial Service Firms. Broker-dealers, registered investment
Information advisers and other financial service firms provide varying
            investment products, programs or accounts, 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

39 PIMCO Funds: Multi-Manager Series
<PAGE>

            account maintenance services required by your account, including,
            without limitation, transfers of registration and dividend payee
            changes. Firms may also perform other functions, including
            generating confirmation statements and disbursing cash dividends,
            and may arrange with their clients for other investment or
            administrative services. Your firm may independently establish and
            charge you transaction fees and/or other additional amounts for
            such services, which may change over time. These fees and
            additional amounts could reduce your investment returns on Class D
            shares of the Funds.

             Your financial service firm may have omnibus accounts and similar
            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 the Funds, PIMCO Advisors or an
            affiliate (normally not to exceed an annual rate of 0.35% of a
            Fund's average daily net assets attributable 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 establish certain privileges with
            respect to purchases, redemptions and exchanges of Class D shares
            or the reinvestment of dividends. Please contact your firm for
            information.

             This Prospectus should be read in connection with your firm's
            materials regarding its fees and services.

              . Calculation of Share Price and Redemption Payments. When you
            buy or sell (redeem) Class D shares of the Funds, you pay or
            receive a price equal to the NAV of the shares. NAVs are
            determined at the close of regular trading (normally, 4:00 p.m.,
            Eastern time) on each day the New York Stock Exchange is open. See
            "How Fund Shares Are Priced" above for details. Generally,
            purchase and redemption orders for Fund shares are processed at
            the NAV next calculated after your order is received by the
            Distributor. In addition, orders received by the Distributor from
            financial service firms after NAV is determined that day will be
            processed at that day's NAV 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., Eastern time).

             The Trust does not calculate NAVs or process orders on days when
            the New York Stock Exchange is closed. If your purchase or
            redemption order is received by the Distributor on a day when the
            New York Stock Exchange is closed, it will be processed on the
            next succeeding day when the New York Stock Exchange is open
            (according to the succeeding day's NAV).

Buying      Class D shares of each Fund are continuously offered through
Shares      financial service firms, such as broker-dealers or registered
            investment advisers, with which the 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
            "Financial Service Firms" above.

             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. If you wish
            to purchase shares of the Funds directly from the Trust or the
            Distributor, you should inquire about the other classes of shares
            offered by the Trust. Please call the Distributor at 1-888-87-
            PIMCO for information about other investment options.

             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. In
            most cases, the Trust's transfer agent, PFPC, Inc., will have no
            information with respect to or control over accounts of specific
            Class D shareholders and you may obtain information about your
            accounts only through your financial service firm. In certain
            circumstances, 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
            relationship with your firm). In such circumstances, please
            contact the Distributor at 1-888-87-PIMCO for information about
            your account. In the interest of economy and convenience,
            certificates for Class D shares will not be issued.

             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 New York Stock 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 New York Stock 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
            assets, or during any other period as permitted by the Securities
            and Exchange Commission for the protection of investors.

                                                                   Prospectus 40
<PAGE>

Investment  The following investment minimums apply for purchases of Class D
Minimums    shares.


<TABLE>
<CAPTION>
                    Initial Investment                  Subsequent Investments
                         -----------------------------------------------------
                    <S>                                 <C>
                     $2,500 per Fund                        $100 per Fund
</TABLE>

             Your financial service firm may impose different investment
            minimums than the Trust. For example, if your firm maintains an
            omnibus account with a particular Fund, the firm may impose higher
            or lower investment minimums than the Trust when you invest in
            Class D shares of the Fund through your firm. Please contact your
            firm for information.

Exchanging  Except as provided below or in the applicable Fund's or series'
Shares      prospectus(es), you may exchange your Class D shares of any Fund
            for Class D shares of any other Fund or series of PIMCO Funds:
            Pacific Investment Management Series that offers Class D shares.
            Shares are exchanged on the basis of their respective NAVs next
            calculated after your exchange order is received by the
            Distributor. Currently, the Trust does not charge any exchange
            fees or charges. Your financial service firm may impose various
            fees and charges, investment minimums and other requirements with
            respect to exchanges. In addition, an exchange is generally a
            taxable event which will generate capital gains or losses, and
            special rules may apply in computing tax basis when determining
            gain or loss. Please contact your financial service firm to
            exchange your shares and for additional information about the
            exchange privilege.

             The Trust reserves the right to refuse exchange purchases if, in
            the judgment of PIMCO Advisors, 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 PIMCO Advisors 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 PIMCO 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 intention 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' advance notice to your financial service
            firm of any termination or material modification of the exchange
            privilege with respect to Class D shares.

Selling     You can sell (redeem) Class D shares through your financial
Shares      service firm on any day the New York Stock Exchange is open. You
            do not pay any fees or other charges to the Trust or the
            Distributor when you sell your shares, although your financial
            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 contact
            the Distributor at 1-888-87-PIMCO for information regarding how to
            sell your shares directly to the Trust.

             Your financial service firm is obligated to transmit your
            redemption orders to the Distributor promptly and is responsible
            for ensuring that your redemption request is in proper form. Your
            financial service firm will be responsible for furnishing all
            necessary documentation to the Distributor or the Trust's transfer
            agent and may charge you for its services. Redemption proceeds
            will be forwarded to your financial service firm as promptly as
            possible and in any event within seven days after the redemption
            request is received by the Distributor in good order.

             Redemptions of Fund shares may be suspended 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 assets, or during any
            other period as permitted by the Securities and Exchange
            Commission for the protection of investors. Under these and other
            unusual circumstances, the Trust may suspend redemptions or
            postpone payment for more than seven days, as permitted by law.

Redemptions
In Kind
            The Trust has agreed 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 may 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

41 PIMCO Funds: Multi-Manager Series
<PAGE>

            for Funds with a tax-efficient management strategy, it is highly
            unlikely that your shares would ever be redeemed in kind. If your
            shares are redeemed in kind, you should expect to incur
            transaction costs upon the disposition of the securities received
            in the distribution.

            Fund Distributions

            Each Fund distributes substantially all of its net investment
            income to shareholders in the form of dividends. You begin earning
            dividends on Fund shares the day after the Trust receives your
            purchase payment. Dividends paid by each Fund with respect to its
            Class D shares are calculated in the same manner and at the same
            time. The following shows when each Fund intends to declare and
            distribute income dividends to shareholders of record.

<TABLE>
<CAPTION>
          Fund                      At Least Annually                 Quarterly
            -------------------------------------------------------------------
         <S>                        <C>                           <C>
          Equity Income Fund                                              .
            -------------------------------------------------------------------
          All other Funds                  .
            -------------------------------------------------------------------
</TABLE>

             In addition, each Fund distributes any net capital gains it earns
            from the sale of portfolio securities to shareholders no less
            frequently than annually. Net short-term capital gains may be paid
            more frequently.

            You can choose from the following distribution options:

            . Reinvest all distributions in additional Class D shares of your
              Fund at NAV. This will be done unless you elect another option.

            . Invest all distributions in Class D shares of any other Fund or
              another series of the Trust or PIMCO Funds: Pacific Investment
              Management Series which offers Class D shares at NAV. You must
              have an account existing in the Fund or series selected for
              investment with the identical registered name. This option must
              be elected when your account is set up.

            . Receive all distributions in cash (either paid directly to you
              or credited to your account with your financial service firm).
              This option must be elected when your account is set up.

             Your financial service firm may offer additional distribution
            reinvestment programs or options. Please contact your firm for
            details.

             You do not pay any sales charges on shares you receive through
            the reinvestment of Fund distributions. If you elect to receive
            Fund distributions in cash and the postal or other delivery
            service is unable to deliver checks to your address of record, the
            Trust's Transfer Agent will hold the returned checks for your
            benefit in a non-interest bearing account.

             For further information on distribution options, please contact
            your financial service firm or call the Distributor at 1-888-87-
            PIMCO.

            Tax Consequences

              . Taxes on Fund distributions. If you are subject to U.S.
            federal income tax, you will be subject to tax on Fund
            distributions whether you received them in cash or reinvested them
            in additional shares of the Funds. For federal income tax
            purposes, Fund distributions will be taxable to you as either
            ordinary income or capital gains.

             Fund dividends (i.e., distributions of investment income) are
            taxable to you as ordinary income. Federal taxes on Fund
            distributions of gains are determined by how long the Fund owned
            the investments that generated the gains, rather than how long you
            have owned your shares. Distributions of gains from investments
            that a Fund owned for more than 12 months will generally be
            taxable to you as capital gains. Distributions of gains from
            investments that the Fund owned for 12 months or less will
            generally be taxable to you as ordinary income.

                                                                   Prospectus 42
<PAGE>

             Fund distributions are taxable to you even if they are paid from
            income or gains earned by a Fund prior to your investment and thus
            were included in the price you paid for your shares. For example,
            if you purchase shares on or just before the record date of a Fund
            distribution, you will pay full price for the shares and may
            receive a portion of your investment back as a taxable
            distribution.

              . Taxes when you sell (redeem) or exchange your shares. Any gain
            resulting from the sale of Fund shares will generally be subject
            to federal income tax. When you exchange shares of a Fund for
            shares of another series, the transaction will generally be
            treated as a sale of the Fund shares for these purposes, and any
            gain on those shares will generally be subject to federal income
            tax.

              . A Note on the Tax-Efficient Equity Fund. The Tax-Efficient
            Equity Fund utilizes a number of tax-efficient management
            techniques designed to minimize taxable distributions. For
            instance, the Fund generally seeks to minimize realized gains and,
            when realizing gains, attempts to realize gains that will be taxed
            as capital gains (i.e., as gains on investments owned for more
            than 12 months) when distributed to shareholders. Although the
            Fund attempts to minimize taxable distributions, it may be
            expected to earn and distribute taxable income and realize and
            distribute capital gains from time to time.

              . A Note on Foreign Investments. A Fund's investment in foreign
            securities may be subject to foreign withholding taxes. In that
            case, the Fund's yield on those securities would be decreased. In
            addition, a Fund's investments in foreign securities or foreign
            currencies may increase or accelerate the Fund's recognition of
            ordinary income and may affect the timing or amount of the Fund's
            distributions. Shareholders of the Global Innovation and Allianz
            Select International Funds may be entitled to claim a credit or
            deduction with respect to foreign taxes.

             This section relates only to federal income tax consequences of
            investing in the Funds; the consequences under other tax laws may
            differ. You should consult your tax advisor as to the possible
            application of foreign, state and local income tax laws to Fund
            dividends and capital distributions. Please see the Statement of
            Additional Information for additional information regarding the
            tax aspects of investing in the Funds.

            Characteristics and Risks of Securities
            and Investment Techniques

            This section provides additional information about some of the
            principal investments and related risks of the Funds identified
            under "Summary Information" above. It also describes
            characteristics and risks of additional securities and investment
            techniques that are not necessarily principal investment
            strategies but may be used by the Funds from time to time. Most of
            these securities and investment techniques are discretionary,
            which means that the portfolio managers can decide whether to use
            them or not. This Prospectus does not attempt to disclose all of
            the various types of securities and investment techniques that may
            be used by the Funds. As with any mutual fund, investors in the
            Funds must rely on the professional investment judgment and skill
            of PIMCO Advisors, the Sub-Advisers and the individual portfolio
            managers. Please see "Investment Objectives and Policies" in the
            Statement of Additional Information for more detailed information
            about the securities and investment techniques described in this
            section and about other strategies and techniques that may be used
            by the Funds.

Fixed       Fixed income securities are obligations of the issuer to make
Income      payments of principal and/or interest on future dates, and include
Securities  corporate and government bonds, notes, certificates of deposit,
and         commercial paper, convertible securities and mortgage-backed and
Defensive   other asset-backed securities.
Strategies

             The Capital Appreciation, Mid-Cap and Tax-Efficient Equity Funds
            intend to be as fully invested in common stocks as practicable at
            all times, although, for cash management purposes, each of these
            Funds may maintain a portion of its assets (normally not more than
            10%) in U.S. Government securities, high quality fixed income
            securities, money market obligations and cash to pay certain Fund
            expenses and to meet redemption requests. None of these Funds will
            make defensive investments in response to unfavorable market and
            other conditions and therefore may be particularly vulnerable to
            general declines in stock prices and/or other categories of
            securities in which they invest.

             The Equity Income, Global Innovation, Growth, Innovation,
            Renaissance, Select Growth, Allianz Select International, Target
            and Value Funds will each invest primarily in common stocks, and
            may also invest in other kinds of equity securities, including
            preferred stocks and securities (including fixed

43 PIMCO Funds: Multi-Manager Series
<PAGE>

            income securities and warrants) convertible into or exercisable
            for common stocks. Each of these Funds may also invest a portion
            of its assets in fixed income securities. These Funds may
            temporarily hold up to 100% of their assets in short-term U.S.
            Government securities and other money market instruments for
            defensive purposes in response to unfavorable market and other
            conditions. The Growth & Income Fund will invest primarily in
            common stocks, but may also invest significant portions of its
            assets in preferred stocks, fixed income securities, convertible
            securities and real estate investment trusts, or "REITs." The
            Growth & Income Fund may temporarily hold up to 100% of its assets
            in short-term U.S. Government securities and other money market
            instruments for defensive purposes in response to unfavorable
            market and other conditions. The Allianz Select International Fund
            may also hold up to 100% of its assets in other domestic fixed
            income, foreign fixed income and equity securities principally
            traded in the U.S., including obligations issued or guaranteed by
            a foreign government or its agencies, authorities or
            instrumentalities, corporate bonds and American Depository
            Receipts, for temporary defensive purposes. The temporary
            defensive strategies described in this paragraph would be
            inconsistent with the investment objective and principal
            investment strategies of each of the noted Funds and may adversely
            affect the Fund's ability to achieve its investment objective.

Companies   Each of the Funds may invest in securities of companies with
With        market capitalizations that are small compared to other publicly
Smaller     traded companies. The Global Innovation and Innovation Funds may
Market      invest significant portions of their assets in smaller companies
Capital-    and therefore have substantial exposure to the risks described
izations    below. The Growth & Income, Mid-Cap, Allianz Select International
            and Target Funds also have significant exposure to the risks
            described below because they invest primarily in companies with
            medium-sized market capitalizations, which are smaller and
            generally less well-known or seasoned than the largest companies.

             Companies which are smaller and less well-known or seasoned than
            larger, more widely held companies may offer greater opportunities
            for capital appreciation, but may also involve risks different
            from, or greater than, risks normally associated with larger
            companies. Larger 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 than smaller
            companies. Smaller companies may have limited product lines,
            markets or financial resources or may depend on a small,
            inexperienced management group. Securities of smaller companies
            may trade less frequently and in lesser volume than more widely
            held securities and their values may fluctuate more abruptly or
            erratically than securities of larger companies. They may also
            trade in the over-the-counter market or on a regional exchange, or
            may otherwise have limited liquidity. These securities may
            therefore be more vulnerable to adverse market developments than
            securities of larger companies. Also, there may be less publicly
            available information about smaller companies or less market
            interest in their securities as compared to larger companies, and
            it may take longer for the prices of the securities to reflect the
            full value of a company's earnings potential or assets.

             Because securities of smaller companies may have limited
            liquidity, a Fund may have difficulty establishing or closing out
            its positions in smaller companies at prevailing market prices. 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. For these reasons, 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 smaller capitalization securities, which
            could adversely affect performance.

Initial     The Funds, particularly the Global Innovation Fund, may purchase
Public      securities in intial public offerings (IPOs). These securities are
Offerings   subject to many of the same risks of investing in companies with
            smaller market capitalizations. Securities issued in IPOs have no
            trading history, and information about the companies may be
            available for very limited periods. In addition, the prices of
            securities sold in IPOs may be highly volatile. At any particular
            time or from time to time a Fund may not be able to invest in
            securities issued in IPOs, or invest to the extent desired
            because, for example, only a small portion (if any) of the
            securities being offered in an IPO may be made available to the
            Fund. In addition, under certain market conditions a relatively
            small number of companies may issue securities in IPOs. Similarly,
            as the number of Funds to which IPO securities are allocated
            increases, the number of securities issued to any one Fund may
            decrease. The investment performance of a Fund during periods when
            it is unable to invest significantly or at all in IPOs may be
            lower than during periods when the Fund is able to do so. In
            addition, as a Fund increases in size, the impact of IPOs on the
            Fund's performance will generally decrease.

                                                                   Prospectus 44
<PAGE>

Foreign     The Allianz Select International Fund normally invests principally
(non-       in securities of foreign issuers, securities traded principally in
U.S.)       securities markets outside the United States and/or securities
Securities  denominated in foreign currencies (together, "foreign
            securities"). The Global Innovation Fund will invest in the
            securities of issuers located in at least three countries (one of
            which may be the United States). The Equity Income, Growth, Growth
            & Income, Innovation, Renaissance, Target and Value Funds may
            invest up to 15% of their respective assets 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"). The Select
            Growth Fund may invest up to 25% of its assets in foreign
            securities. Each of these Funds may invest without limit in ADRs
            (defined below). The Tax-Efficient Equity Fund may invest in
            common stocks of foreign issuers if included in the S&P 500 Index.

             All of the Funds may invest in American Depository Receipts
            (ADRs). In addition, the Equity Income, Global Innovation, Growth,
            Growth & Income, Innovation, Renaissance, Select Growth, Allianz
            Select International, Target and Value Funds may invest in
            European Depository Receipts (EDRs) and Global Depository Receipts
            (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 traded in public
            or private markets in other countries.

             Investing in foreign securities involves special risks and
            considerations not typically associated with investing in U.S.
            securities and shareholders should consider carefully the
            substantial risks involved for Funds that invest in these
            securities. These risks include: differences in accounting,
            auditing and financial reporting standards; generally higher
            commission rates on foreign portfolio transactions; the
            possibility of nationalization, expropriation or confiscatory
            taxation; adverse changes in investment or exchange control
            regulations; and political instability. 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 foreign securities
            markets may change independently of each other. Also, 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. Investments in foreign
            securities may also involve higher custodial costs than domestic
            investments and additional transaction costs with respect to
            foreign currency conversions. Changes in foreign exchange rates
            also will affect the value of securities denominated or quoted in
            foreign currencies.

Emerging    Each of the Funds that may invest in foreign securities may invest
Market      in securities of issuers based in countries with developing (or
Securities  "emerging market") economies. The Global Innovation and Allianz
            Select International Funds may invest significant portions of
            their assets in emerging market securities. Investing in emerging
            market securities imposes risks different from, or greater than,
            risks of investing in domestic securities or in foreign, developed
            countries. These risks include: smaller market capitalization of
            securities markets, which may suffer periods of relative
            illiquidity; significant price volatility; restrictions on foreign
            investment; and possible repatriation of investment income and
            capital. In addition, foreign investors may be required to
            register the proceeds of sales and future economic or political
            crises could lead to price controls, forced mergers, expropriation
            or confiscatory taxation, seizure, nationalization or the creation
            of government monopolies. The currencies of emerging market
            countries may experience significant declines against the U.S.
            dollar, 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.

             Additional risks of emerging market securities may include:
            greater social, economic and political uncertainty and
            instability; more substantial governmental involvement in the
            economy; less governmental supervision and regulation;
            unavailability of currency hedging techniques; companies that are
            newly organized and small; differences in auditing and financial
            reporting standards, which may result in unavailability of
            material information about issuers; and less developed legal
            systems. 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 be delayed in disposing of a portfolio security.
            Such a delay could result in possible liability to a purchaser of
            the security.

45 PIMCO Funds: Multi-Manager Series
<PAGE>

             Special Risks of Investing in Russian and Other Eastern European
            Securities. Each of the Global Innovation and Allianz Select
            International Funds may invest a significant portion of its 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.

Foreign     A Fund that invests directly in foreign currencies or in
Currencies  securities that trade in, and receive revenues in, foreign
            currencies will be subject to currency risk. The Global Innovation
            and Allianz Select International Funds are particularly sensitive
            to this risk.

             Foreign currency exchange rates may fluctuate significantly over
            short periods of time. They generally are determined by supply and
            demand and the relative merits of investments in different
            countries, actual or perceived changes in interest rates and other
            complex factors. 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. For example, uncertainty
            surrounds the introduction of the euro (a common currency unit for
            the European Union) and the effect it may have on the value of
            European currencies as well as 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.

             Foreign Currency Transactions. The Equity Income, Global
            Innovation, Growth, Growth & Income, Innovation, Renaissance,
            Select Growth, Allianz Select International, Target and Value
            Funds may enter into forward foreign currency exchange contracts,
            primarily to reduce the risks of adverse changes in foreign
            exchange rates. In addition, the Global Innovation and Allianz
            Select International Funds may buy and sell foreign currency
            futures contracts and options on foreign currencies and foreign
            currency futures. A forward foreign currency exchange contract,
            which involves an obligation to purchase or sell a specific
            currency at a future date at a price set at the time of the
            contract, reduces a Fund's 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 receive for the duration of the
            contract. The effect on the value of a Fund is similar to selling
            securities denominated in one currency and purchasing securities
            denominated 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 to hedge 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 Global Innovation and Allianz Select International Funds may
            also enter into these 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 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 Global Innovation
            and Allianz Select International Funds may use one currency (or
            basket of currencies) to hedge against adverse changes in the
            value of another currency (or basket of currencies) when exchange
            rates between the two currencies are positively correlated. The
            Fund will segregate assets determined to be liquid by PIMCO
            Advisors or its Sub-Adviser 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.

Corporate   Each Fund that may invest in fixed income securities may invest in
Debt        corporate debt securities. The Growth & Income Fund may invest up
Securities  to 10% of its assets in these securities. Corporate debt
            securities are subject to the risk of the issuer's inability to
            meet principal and interest payments on the obligation and may
            also be subject to price volatility due to factors such as
            interest rate sensitivity, market perception of the
            creditworthiness of the issuer and general market liquidity. When
            interest rates rise,

                                                                   Prospectus 46
<PAGE>

            the value of corporate debt securities can be expected to decline.
            Debt securities with longer durations tend to be more sensitive to
            interest rate movements than those with shorter durations.

Convertible Each Fund may invest in convertible securities. The Growth &
Securities  Income Fund may place particular emphasis on convertible
            securities. Convertible securities are generally preferred stocks
            and other securities, including fixed income securities and
            warrants, that are convertible into or exercisable for common
            stock at either a stated price or a stated rate. The price of a
            convertible security will normally vary in some proportion to
            changes in the price of the underlying common stock because of
            this conversion or exercise feature. However, the value of a
            convertible security may not increase or decrease as rapidly as
            the underlying common stock. A convertible security will normally
            also provide income and is subject to interest rate risk. 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. Also, a Fund may be forced to convert
            a security before it would otherwise choose, which may have an
            adverse effect on the Fund's ability to achieve its investment
            objective.

Derivatives Each Fund (except the Capital Appreciation and Mid-Cap Funds) may,
            but is not required to, use a number of derivative instruments for
            risk management purposes or as part of its investment strategies.
            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. A portfolio manager may decide not to employ any
            of these strategies and there is no assurance that any derivatives
            strategy used by a Fund will succeed. In addition, suitable
            derivative transactions may not be available in all circumstances
            and there can be no assurance that a Fund will engage in these
            transactions to reduce exposure to other risks when that would be
            beneficial.

             Examples of derivative instruments that the Funds may use include
            options contracts, futures contracts, options on futures contracts
            and swap agreements. The Equity Income, Global Innovation, Growth,
            Growth & Income, Innovation, Renaissance, Select Growth, Allianz
            Select International, Target, Tax-Efficient Equity and Value Funds
            may purchase and sell (write) call and put options on securities,
            securities indexes and foreign currencies. Each of these Funds may
            purchase and sell futures contracts and options thereon with
            respect to securities, securities indexes and foreign currencies.
            The Global Innovation, Allianz Select International and Tax-
            Efficient Equity Funds may enter into swap agreements with respect
            to securities indexes. A description of these and other derivative
            instruments that the Funds may use are described under "Investment
            Objectives and Policies" in the Statement of Additional
            Information.

             A Fund's use of derivative instruments involves risks different
            from, or greater than, the risks associated with investing
            directly in securities and other more traditional investments. A
            description of various risks associated with particular derivative
            instruments is included in "Investment Objectives and Policies" in
            the Statement of Additional Information. The following provides a
            more general discussion of important risk factors relating to all
            derivative instruments that may be used by the 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 instrument 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.

             Leveraging 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 a Fund uses derivatives
            for leverage, investments

47 PIMCO Funds: Multi-Manager Series
<PAGE>

            in that Fund will tend to be more volatile, resulting in larger
            gains or losses in response to market changes. To limit leverage
            risk, each Fund will segregate assets determined to be liquid by
            PIMCO Advisors or a Sub-Adviser 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 derivative instruments.

             Lack of Availability Because the markets for certain derivative
            instruments (including markets located in foreign countries) are
            relatively new and still developing, suitable derivatives
            transactions may not be available in all circumstances for risk
            management or other purposes. There is no assurance that a Fund
            will engage in derivatives transactions at any time or from time
            to time. A Fund's ability to use derivatives may also be limited
            by certain regulatory and tax considerations.

             Market and Other Risks Like most other investments, derivative
            instruments are subject to the risk that the market value of the
            instrument will change in a way detrimental to a Fund's interest.
            If a portfolio manager incorrectly forecasts the values of
            securities, currencies or interest rates or other economic factors
            in using derivatives for a Fund, the Fund might have been in a
            better position if it had not entered into the transaction at all.
            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
            other Fund investments. A Fund may also have to buy or sell a
            security at a disadvantageous time or price because the Fund is
            legally required to maintain offsetting positions or asset
            coverage in connection with certain derivatives transactions.

             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 a Fund. Also, the value of
            derivatives may not correlate perfectly, or at all, with the value
            of the assets, reference rates or indexes they are designed to
            closely track. In addition, a Fund's use of derivatives may cause
            the Fund to realize higher amounts of short-term capital gains
            (taxed at ordinary income tax rates when distributed to
            shareholders who are individuals) than if the Fund had not used
            such instruments.

Equity-     The Funds may invest in equity-linked securities. The Allianz
Linked      Select International Fund may invest up to 15% of its assets in
Securities  equity-linked securities. Equity-linked securities are privately
            issued securities whose investment results are designed to
            correspond generally to the performance of a specified stock index
            or "basket" of stocks, or sometimes a single stock. To the extent
            that the Funds invest in equity-linked securities whose return
            corresponds to the performance of a foreign securities index or
            one or more of foreign stocks, investing in equity-linked
            securities will involve risks similar to the risks of investing in
            foreign securities. See "Foreign Securities" above. In addition,
            the Funds bear the risk that the issuer of an equity-linked
            security may default on its obligations under the security.
            Equity-linked securities may be considered illiquid and thus
            subject to each Fund's restrictions on investments in illiquid
            securities.

Credit      The Funds may invest in securities based on their credit ratings
Ratings     assigned by rating agencies such as Moody's Investors Service,
and         Inc. ("Moody's") and Standard & Poor's Ratings Services ("S&P").
Unrated     Moody's, S&P and other rating agencies are private services that
Securities  provide ratings of the credit quality of fixed income securities,
            including convertible securities. The Appendix to the Statement of
            Additional Information describes the various ratings assigned to
            fixed income securities by Moody's and S&P. Ratings assigned by a
            rating agency are not absolute standards of credit quality and do
            not evaluate market risk. Rating agencies may fail to make timely
            changes in credit ratings and an issuer's current financial
            condition may be better or worse than a rating indicates. A Fund
            will not necessarily sell a security when its rating is reduced
            below its rating at the time of purchase. PIMCO Advisors and the
            Sub-Advisers do not rely solely on credit ratings, and develop
            their own analysis of issuer credit quality.

             A Fund may purchase unrated securities (which are not rated by a
            rating agency) if its portfolio manager determines that the
            security is of comparable quality to a rated security that the
            Fund may purchase. Unrated securities may be less liquid than
            comparable rated securities and involve the risk that the
            portfolio manager may not accurately evaluate the security's
            comparative credit rating.

High        Securities rated lower than Baa by Moody's or lower than BBB by
Yield       S&P are sometimes referred to as "high yield securities" or "junk
Securities  bonds." The Funds, particularly the Growth & Income Fund, may
            invest in these securities. Investing in these securities involves
            special risks in addition to the risks associated with investments
            in higher-rated fixed income securities. While offering a greater
            potential

                                                                   Prospectus 48
<PAGE>

            opportunity for capital appreciation and higher yields, these
            securities may be subject to greater levels of interest rate,
            credit and liquidity risk, may entail greater potential price
            volatility and may be less liquid than higher-rated securities.
            These securities may be regarded as predominantly speculative with
            respect to the issuer's continuing ability to meet principal and
            interest payments. They may also be more susceptible to real or
            perceived adverse economic and competitive industry conditions
            than higher-rated securities.

Loans of    For the purpose of achieving income, each Fund may lend its
Portfolio   portfolio securities to brokers, dealers, and other financial
Securities  institutions provided a number of conditions are satisfied,
            including that the loan is fully collateralized. Please see
            "Investment Objectives and Policies" in the Statement of
            Additional Information for details. When a Fund lends portfolio
            securities, its investment performance will continue to reflect
            changes in the value of the securities loaned, and the Fund will
            also receive a fee or interest on the collateral. Securities
            lending involves the risk of loss of rights in the collateral or
            delay in recovery of the collateral if the borrower fails to
            return the security loaned or becomes insolvent. A Fund may pay
            lending fees to the party arranging the loan.

Short       Each Fund may make short sales as part of its overall portfolio
Sales       management strategies or to offset a potential decline in the
            value of a security. A short sale involves the sale of a security
            that is borrowed from a broker or other institution to complete
            the sale. A Fund may only enter into short selling transactions if
            the security sold short is held in the Fund's portfolio or if the
            Fund has the right to acquire the security 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 a Fund to the
            risk that it will be required to acquire, convert or exchange
            securities to replace the borrowed securities (also known as
            "covering" the short position) at a time when the securities sold
            short have appreciated 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
Delivery    securities for a fixed price at a future date beyond normal
and         settlement time (forward commitments). When-issued transactions,
Forward     delayed delivery purchases and forward commitments involve a risk
Commitment  of loss if the value of the securities declines prior to the
Transactionssettlement date. This risk is in addition to the risk that the
            Fund's other assets will decline in value. Therefore, these
            transactions may result in a form of leverage and increase a
            Fund's overall investment exposure. 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 to cover these positions.

Repurchase  Each Fund may enter into repurchase agreements, in which the Fund
Agreements  purchases a security from a bank or broker-dealer that agrees to
            repurchase the security at the Fund's cost plus interest within a
            specified time. If the party agreeing to repurchase should
            default, the Fund will seek to sell the securities which it holds.
            This 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 its portfolio maintained in cash. Repurchase agreements
            maturing in more than seven days are considered illiquid
            securities.

Reverse     Each Fund may enter into reverse repurchase agreements, subject to
Repurchase  the Fund's limitations on borrowings. A reverse repurchase
Agreements  agreement involves the sale of a security by a Fund and its
And Other   agreement to repurchase the instrument at a specified time and
Borrowings  price, and may be considered a form of borrowing for some
            purposes. A Fund will segregate assets determined to be liquid by
            PIMCO Advisors or a Sub-Adviser in accordance with procedures
            established by the Board of Trustees to cover its obligations
            under reverse repurchase agreements. 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. Reverse repurchase agreements and other
            forms of borrowings may create leveraging risk for a Fund.

Illiquid
Securities
            Each Fund may invest in securities that are illiquid so long as
            not more than 15% of the value of the Fund's net assets (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 held by a
            Fund, and transactions in illiquid securities may entail
            registration expenses and other transaction costs that are higher
            than those for transactions in liquid

49 PIMCO Funds: Multi-Manager Series
<PAGE>

            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. Please see "Investment Objectives
            and Policies" in the Statement of Additional Information for a
            listing of various securities that are generally considered to be
            illiquid for these purposes. Restricted securities, i.e.,
            securities subject to legal or contractual restrictions on resale,
            may be illiquid. However, some restricted securities (such as
            securities issued pursuant to Rule 144A under the Securities Act
            of 1933 and certain commercial paper) may be treated as liquid,
            although they may be less liquid than registered securities traded
            on established secondary markets.

Investment  The Allianz Select International Fund may invest up to 10% of its
in Other    assets in securities of other investment companies, such as
Investment  closed-end management investment companies, or in pooled accounts
Companies   or other investment vehicles which invest in foreign markets. Each
            of the other Funds may invest up to 5% of its assets in other
            investment companies. As a shareholder of an investment company, a
            Fund may indirectly bear service and other fees which are in
            addition to the fees the Fund pays its service providers.

Portfolio   With the exception of the Tax-Efficient Equity Fund, the length of
Turnover    time a Fund has held a particular security is not generally a
            consideration in investment decisions. A change in the securities
            held by a Fund is known as "portfolio turnover." Each Fund may
            engage in active and frequent trading of portfolio securities to
            achieve its investment objective and principal investment
            strategies, particularly during periods of volatile market
            movements, although the Tax-Efficient Equity Fund will generally
            attempt to limit portfolio turnover as part of its tax-efficient
            management strategies. 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 also result in realization of taxable
            capital gains, including short-term capital gains (which are taxed
            at ordinary income tax rates when distributed to shareholders who
            are individuals). The trading costs and tax effects associated
            with portfolio turnover may adversely affect a Fund's performance.
            Funds, such as the Growth & Income, Select Growth and Allianz
            Select International Funds, that have recently changed Sub-
            Advisers and/or investment objectives and policies may experience
            increased portfolio turnover due to the differences between the
            Funds' previous and current investment objectives and policies and
            portfolio management strategies.

Changes     The investment objective of each of the Global Innovation, Growth,
in          Growth & Income, Innovation, Renaissance, Select Growth, Allianz
Investment  Select International, Target and Tax-Efficient Equity Funds
Objectives  described in this Prospectus may be changed by the Board of
and         Trustees without shareholder approval. The investment objective of
Policies    each other Fund is fundamental and may not be changed without
            shareholder approval. Unless otherwise stated in the Statement of
            Additional Information, all investment policies of the Funds may
            be changed by the Board of Trustees without shareholder approval.
            If there is a change in a Fund's investment objective or policies,
            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.

New and     In addition to the risks described under "Summary of Principal
Smaller-    Risks" above and in this section, several of the Funds are newly
Sized       formed and therefore have limited or no performance history for
Funds       investors to evaluate. Also, it is possible that newer Funds and
            smaller-sized Funds may invest in securities offered in initial
            public offerings and other types of transactions (such as private
            placements) which, because of the Funds' size, have a
            disproportionate impact on the Funds' performance results. The
            Funds would not necessarily have achieved the same performance
            results if their aggregate net assets had been greater.

Percentage
Investment  Unless otherwise stated, all percentage limitations on Fund
Limitations investments listed in this Prospectus will apply at the time of
            investment. A Fund would not violate these limitations unless an
            excess or deficiency occurs or exists immediately after and as a
            result of an investment.

Other
Investments
and
Techniques
            The Funds may invest in other types of securities and use a
            variety of investment techniques and strategies which are not
            described in this Prospectus. These securities and techniques may
            subject the Funds to additional risks. Please see the Statement of
            Additional Information for additional information about the
            securities and investment techniques described in this Prospectus
            and about additional securities and techniques that may be used by
            the Funds.

                                                                   Prospectus 50
<PAGE>

            Financial Highlights

            The financial highlights table is intended to help you understand
            the financial performance of Class D shares of each Fund since the
            class of shares was first offered. Certain information reflects
            financial results for a single Fund share. The total returns in
            the table represent the rate that an investor would have earned or
            lost on an investment in Class D shares of a Fund, assuming
            reinvestment of all dividends and distributions. This information
            has been audited by PricewaterhouseCoopers LLP, whose report,
            along with each Fund's financial statements, are included in the
            Trust's annual report to shareholders. The annual report is
            incorporated by reference in the Statement of Additional
            Information and is available free of charge upon request from the
            Distributor. The Growth & Income and Allianz Select International
            Funds did not offer Class D shares during the periods shown.

<TABLE>
<CAPTION>
                                                                                                       Dividends in
                                                            Net Realized/    Total Income   Dividends    Excess
 Year or                    Net Asset Value      Net          Unrealized        (Loss)       From Net     of Net
  Period                       Beginning     Investment     Gain (Loss) on  From Investment Investment  Investment
  Ended                        of Period    Income (Loss)    Investments      Operations      Income      Income
-------------------------------------------------------------------------------------------------------------------
 <S>                        <C>             <C>             <C>             <C>             <C>        <C>
 Capital Appreciation Fund
  06/30/00                       $26.63         $(0.03)(a)       $ 5.36 (a)      $ 5.33        $(0.05)     $(0.03)
  06/30/99                        26.01           0.06 (a)         2.34 (a)        2.40         (0.13)       0.00
  04/08/98-
   06/30/98                       25.41           0.02 (a)         0.58 (a)        0.60          0.00        0.00
 Equity Income Fund
  (i)
  06/30/00                       $15.59         $ 0.35 (a)      $ (2.44)(a)     $ (2.09)       $(0.29)     $ 0.00
  06/30/99                        16.04           0.40 (a)         1.27 (a)        1.67         (0.36)       0.00
  04/08/98-
   06/30/98                       16.71           0.09 (a)        (0.66)(a)       (0.57)        (0.10)       0.00
 Global Innovation
  Fund
  03/31/00-
   06/30/00                      $20.17         $(0.04)(a)      $ (1.19)(a)     $ (1.23)       $ 0.00      $ 0.00
 Growth Fund
  01/31/00-
   06/30/00                      $32.84         $(0.11)          $ 2.03          $ 1.92        $ 0.00      $ 0.00
 Innovation Fund
  (i)
  06/30/00                       $37.52         $(0.59)(a)       $42.18 (a)      $41.59        $ 0.00      $ 0.00
  06/30/99                        24.28          (0.29)(a)        14.79 (a)       14.50          0.00        0.00
  04/08/98-
   06/30/98                       21.50          (0.05)(a)         2.83 (a)        2.78          0.00        0.00
 Mid-Cap Fund (ii)
  06/30/00                       $22.90         $(0.01)(a)       $ 7.85 (a)      $ 7.84        $(0.01)     $ 0.00
  06/30/99                        23.99           0.03 (a)        (0.04)(a)       (0.01)        (0.01)       0.00
  04/08/98-
   06/30/98                       23.97           0.00 (a)         0.02 (a)        0.02          0.00        0.00
 Renaissance Fund
  (i)
  06/30/00                       $18.22         $ 0.35 (a)       $(0.13)(a)      $ 0.22        $ 0.00      $ 0.00
  06/30/99                        19.10           0.00 (a)         1.45 (a)        1.45          0.00        0.00
  04/08/98-
   06/30/98                       18.99           0.01 (a)         0.10 (a)        0.11          0.00        0.00
 Select Growth Fund
  (iii)
  03/31/00-
   06/30/00                      $23.25         $ 0.01 (a)       $ 0.74 (a)      $ 0.75        $ 0.00      $ 0.00
 Target Fund
  06/09/00-
   06/30/00                      $30.46         $(0.01)(a)       $ 0.69 (a)      $ 0.68        $ 0.00      $ 0.00
 Tax-Efficient Equity Fund
  06/30/00                       $11.59         $ 0.02 (a)       $ 0.61 (a)      $ 0.63        $ 0.00      $ 0.00
  07/10/98-
   06/30/99                       10.00           0.03 (a)         1.56 (a)        1.59          0.00        0.00
 Value Fund (i)
  06/30/00                       $15.29         $ 0.23 (a)       $(1.34)(a)      $(1.11)       $(0.24)     $ 0.00
  06/30/99                        15.64           0.23 (a)         1.37 (a)        1.60         (0.23)       0.00
  04/08/98-
   06/30/98                       15.99           0.04 (a)        (0.34)(a)       (0.30)        (0.05)       0.00
<CAPTION>
                             Distributions
 Year or                        From Net
  Period                    Realized Capital
  Ended                          Gains
-------------------------------------------------------------------------------------------------------------------
 <S>                        <C>
 Capital Appreciation Fund
  06/30/00                        $(5.00)
  06/30/99                         (1.65)
  04/08/98-
   06/30/98                         0.00
 Equity Income Fund
  (i)
  06/30/00                        $(0.48)
  06/30/99                         (1.76)
  04/08/98-
   06/30/98                         0.00
 Global Innovation
  Fund
  03/31/00-
   06/30/00                       $ 0.00
 Growth Fund
  01/31/00-
   06/30/00                       $ 0.00
 Innovation Fund
  (i)
  06/30/00                        $(6.39)
  06/30/99                         (1.26)
  04/08/98-
   06/30/98                         0.00
 Mid-Cap Fund (ii)
  06/30/00                        $(0.02)
  06/30/99                         (1.07)
  04/08/98-
   06/30/98                         0.00
 Renaissance Fund
  (i)
  06/30/00                        $(2.59)
  06/30/99                         (2.33)
  04/08/98-
   06/30/98                         0.00
 Select Growth Fund
  (iii)
  03/31/00-
   06/30/00                       $ 0.00
 Target Fund
  06/09/00-
   06/30/00                       $ 0.00
 Tax-Efficient Equity Fund
  06/30/00                        $ 0.00
  07/10/98-
   06/30/99                         0.00
 Value Fund (i)
  06/30/00                        $(0.57)
  06/30/99                         (1.72)
  04/08/98-
   06/30/98                         0.00
</TABLE>
-------
* Annualized
(a)Per share amounts based upon average number of shares outstanding during the
period.
(b)If the investment manager had not reimbursed expenses, the ratio of operat-
ing expenses to average net assets would have been 1.94% for the period ended
June 30, 2000.
(i) The information provided for the Equity Income, Innovation, Renaissance and
    Value Funds reflects results of operations under each Funds' former Sub-
    Adviser through May 8, 2000, March 6, 1999, May 7, 1999 and May 8, 2000,
    respectively; the Funds would not necessarily have achieved the performance
    results shown above under their current investment management arrangements.
(ii) Formerly the Mid-Cap Growth Fund.
(iii) Formerly the PIMCO Core Equity Fund. The Fund changed its investment
      objective and policies on April 1, 2000; the performance results shown
      above would not necessarily have been achieved had the Fund's current
      objective and policies been in effect during the periods shown. In
      addition, the performance results shown above reflect the Fund's advisory
      fee level in effect prior to April 1, 2000; these results would have been
      lower had the Fund's current advisory fee level then been in effect.

51 PIMCO Funds: Multi-Manager Series
<PAGE>



<TABLE>
<CAPTION>
                                                                                          Ratio of Net
Ditributionss                                                              Ratio of        Investment
 i Excess ofn                   Net Asset                                 Expenses to   Income (Loss) to
 Nt Realizede        Total     Value End of               Net Assets End  Average Net     Average Net      Portfolio
Caital Gainsp    Distributions    Period    Total Return of Period (000s)   Assets           Assets      Turnover Rate
  --------------------------------------------------------------------------------------------------------------------
  <S>            <C>           <C>          <C>          <C>              <C>           <C>              <C>
      $ 0.00         $(5.08)       $26.88        22.84%       $   524        1.11%           (0.10)%          119%
        0.00          (1.78)        26.63        10.17            339        1.10             0.24            120
        0.00           0.00         26.01         2.36            118        1.10*            0.27*            75
      $(2.16)        $(2.93)       $10.57       (13.15)%      $     4        1.12%            2.93%           114%
        0.00          (2.12)        15.59        12.21            106        1.10             2.73             76
        0.00          (0.10)        16.04        (3.43)           104        1.10*            2.23*            45
      $ 0.00         $ 0.00        $18.94        (6.10)%      $   146        1.85%(b)*       (0.90)%*         131%
      $ 0.00         $ 0.00        $34.76         5.85%       $    11        1.16%*          (0.78)%*          72%
      $ 0.00         $(6.39)       $72.72       115.85%       $85,096        1.30%           (0.93)%          186%
        0.00          (1.26)        37.52        61.62         18,366        1.30            (0.89)           119
        0.00           0.00         24.28        12.93            139        1.30*           (0.99)*          100
      $ 0.00         $(0.03)       $30.71        34.24%       $   796        1.11%           (0.05)%          164%
        0.00          (1.08)        22.90         0.25            359        1.10             0.16             85
        0.00           0.00         23.99         0.08            142        1.10*            0.03*            66
      $(0.86)        $(3.45)       $14.99         3.56%       $ 1,286        1.25%            2.21%           133%
        0.00          (2.33)        18.22        10.01            192        1.25            (0.02)           221
        0.00           0.00         19.10         0.58            126        1.25*            0.21*           192
      $ 0.00         $ 0.00        $24.00         3.23%       $    10        1.25%            0.11%           170%
      $ 0.00         $ 0.00        $31.14         2.23%       $    10        1.20%*          (0.69)%*          99%
      $ 0.00         $ 0.00        $12.22         5.44%       $    11        1.11%            0.16%            32%
        0.00           0.00         11.59        15.90            869        1.11*            0.30*            13
      $(2.00)        $(2.81)       $11.37        (7.07)%      $    46        1.11%            1.71%           196%
        0.00          (1.95)        15.29        12.00            118        1.10             1.61            101
        0.00          (0.05)        15.64        (1.85)            98        1.10*            1.23*            77
</TABLE>

                                                                   Prospectus 52
<PAGE>

            PIMCO Funds: Multi-Manager Series

            The Trust's Statement of Additional Information ("SAI") and annual
            and semi-annual reports to shareholders include additional
            information about the Funds. The SAI and the financial statements
            included in the Funds' most recent annual report to shareholders
            are incorporated by reference into this Prospectus, which means
            they are part of this Prospectus for legal purposes. The Funds'
            annual report discusses the market conditions and investment
            strategies that significantly affected each Fund's performance
            during its last fiscal year.

            You may get free copies of any of these materials, request other
            information about a Fund, or make shareholder inquiries by calling
            1-888-87-PIMCO, or by writing to:

                  PIMCO Funds Distributors LLC
                  2187 Atlantic Street
                  Stamford, CT 06902

            You may also contact your financial service firm for additional
            information.

            You may review and copy information about the Trust, including its
            SAI, at the Securities and Exchange Commission's public reference
            room in Washington, D.C. You may call the Commission at 1-202-942-
            8090 for information about the operation of the public reference
            room. You may also access reports and other information about the
            Trust on the EDGAR database on the Commission's Web site at
            www.sec.gov. You may get copies of this information, with payment
            of a duplication fee, by electronic request at the following e-
            mail address: [email protected], or by writing the Public
            Reference Section of the Commission, Washington, D.C. 20549-6009.
            You may need to refer to the Trust's file number under the
            Investment Company Act, which is 811-6161.

            You can also visit our Web site at www.pimcofunds.com for
            additional information about the Funds.

            [LOGO OF PIMCO FUNDS]

            File No. 811-6161

53 PIMCO Funds: Multi-Manager Series
<PAGE>


          ---------------------------------------------------------------------
PIMCO     INVESTMENT ADVISER AND ADMINISTRATOR
Funds:    PIMCO Advisors L.P., 800 Newport Center Drive, Newport Beach, CA
Multi-    92660
Manager   ---------------------------------------------------------------------
Series    SUB-ADVISERS
          PIMCO Equity Advisors division of PIMCO Advisors L.P., PIMCO/Allianz
          Investment Advisors LLC, Cadence Capital Management, Parametric
          Portfolio Associates
          ---------------------------------------------------------------------
          DISTRIBUTOR
          PIMCO Funds Distributors LLC, 2187 Atlantic Street, Stamford, CT
          06902-6896
          ---------------------------------------------------------------------
          CUSTODIAN
          State Street Bank & Trust Co., 801 Pennsylvania, Kansas City, MO
          64105
          ---------------------------------------------------------------------
          SHAREHOLDER SERVICING AGENT AND TRANSFER AGENT
          PFPC, 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.

                                                     Not part of the Prospectus
<PAGE>

Presenting the new PIMCO Funds Web site at www.pimcofunds.com

[GRAPHIC]

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PZ006.11/00                                           Not part of the Prospectus
--------------------------------------------------------------------------------

                                                             -----------------
[LOGO OF PIMCO FUNDS]                                            PRESORTED
                                                                  STANDARD
                                                               U.S. POSTAGE
                                                                   PAID
                                                              SMITHTOWN, NY
                                                              PERMIT NO. 700
                                                             -----------------


PIMCO Funds
Distributors LLC

2187 Atlantic Street
Stamford, CT 06902-6896
<PAGE>

                            PIMCO Funds Prospectus

Multi-Manager Series

November 1, 2000
Share Classes

Ins  Institutional
Adm  Administrative

               ACTIVELY MANAGED PORTFOLIOS OF SELECT PIMCO FUNDS

PIMCO Funds Asset Allocation Series consist 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
allocatin and investment management capabilities of PIMCO Advisors L.P. and its
affiliates.

                         90/10 Portfolio

                         Seeks long-term capital appreciation. The Portfolio
                         normally invests approximately 90% of its assets in
                         PIMCO Stock Funds and 10% in PIMCO Bond Funds.


                         60/40 Portfolio

                         Seeks long-term capital appreciation and current
                         income. The Portfolio normally invests approximately
                         60% of its assets in PIMCO Stock Funds and 40% in PIMCO
                         Bond Funds.


                         30/70 Portfolio

                         Seeks current income, with long-term capital
                         appreciation as a secondary objective. The Portfolio
                         normally invests approximately 30% of its assets in
                         PIMCO Stock Funds and 70% in PIMCO Bond Funds.


This cover is not part of the Prospectus.                 [LOGO OF PIMCO FUNDS]

<PAGE>

            PIMCO Funds Prospectus

            This Prospectus describes three actively managed mutual fund
PIMCO       Portfolios offered by PIMCO Funds: Multi-Manager Series (the
Funds:      "Trust").
Multi-
Manager
Series


                 Asset Allocation Series -- 90/10 Portfolio


                 Asset Allocation Series -- 60/40 Portfolio

November         Asset Allocation Series -- 30/70 Portfolio
1, 2000

            Each Portfolio invests in a diversified portfolio of other PIMCO
            Funds. This Prospectus explains what you should know about the
            Portfolios before you invest. Please read it carefully.

Share
Classes
Institutional and
Administrative

            The Securities and Exchange Commission has not approved or
            disapproved these securities or determined if this Prospectus is
            truthful or complete. Any representation to the contrary is a
            criminal offense.

1 PIMCO Funds: Multi-Manager Series
<PAGE>



            Table of Contents

<TABLE>
         <S>                                                                <C>
         Summary Information..............................................    3
         Portfolio Summaries
           90/10 Portfolio................................................    5
           60/40 Portfolio................................................    8
           30/70 Portfolio................................................   11
         Summary of Principal Risks.......................................   14
         Investment Objectives and Principal Investment Strategies........   20
         Underlying Funds.................................................   23
         Other Risk Information...........................................   26
         Management of the Portfolios.....................................   26
         Investment Options - Institutional Class and Administrative Class
          Shares .........................................................   29
         Purchases, Redemptions and Exchanges.............................   30
         How Portfolio Shares Are Priced..................................   33
         Portfolio Distributions..........................................   34
         Tax Consequences.................................................   34
         Financial Highlights.............................................   37
</TABLE>

                                                                   Prospectus  2
<PAGE>

            Summary Information

            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
            targets and ranges among certain Funds in the PIMCO Funds family.
            The Portfolios invest only in Funds in the PIMCO Funds family. The
            PIMCO Funds in which the Portfolios invest are called Underlying
            Funds or Funds in this Prospectus.

              Some of the Underlying Funds invest primarily in equity
            securities and are called Underlying Stock Funds. Other Underlying
            Funds invest primarily in fixed income securities, including money
            market instruments, and are called Underlying Bond Funds. The
            Portfolios are named according to 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 table below lists the investment objectives and compares the
            asset allocation strategies of the Portfolios. Other important
            characteristics are described in the individual Portfolio
            Summaries beginning on page 5, and are discussed in greater detail
            under "Investment Objectives and Principal Investment Strategies."
            A "Summary of Principal Risks" begins on page 14.

<TABLE>
<CAPTION>
         PIMCO Funds
         Asset Allocation Series Investment Objective     Allocation Strategy
            ----------------------------------------------------------------------
         <C>                     <C>                      <S>
         90/10 Portfolio         Long-term capital        Under normal conditions,
                                 appreciation             approximately 90% (range
                                                          of 80%-100%) of the
                                                          Portfolio's assets will
                                                          be allocated among
                                                          Underlying Stock Funds
                                                          and 10% (range of 0%-
                                                          20%) among Underlying
                                                          Bond Funds
            ----------------------------------------------------------------------
         60/40 Portfolio         Long-term capital        Under normal conditions,
                                 appreciation and         approximately 60% (range
                                 current income           of 50%-70%) of the
                                                          Portfolio's assets will
                                                          be allocated among
                                                          Underlying Stock Funds
                                                          and 40% (range of 30%-
                                                          50%) among Underlying
                                                          Bond Funds
            ----------------------------------------------------------------------
         30/70 Portfolio         Current income, with     Under normal conditions,
                                 long-term                approximately 30% (range
                                 capital appreciation as  of 25%-35%) of the
                                 a                        Portfolio's assets will
                                 secondary objective      be allocated among
                                                          Underlying Stock Funds
                                                          and 70% (range of 65%-
                                                          75%) among Underlying
                                                          Bond Funds
</TABLE>

Risk/Return An investor should choose among the Portfolios based on personal
Comparison  investment objectives, investment time horizon, tolerance for risk
            and personal financial circumstances. Generally speaking,
            historical data suggests that the longer the time horizon, the
            greater the likelihood that the total return of a portfolio that
            invests primarily in equity securities will be higher than the
            total return of a portfolio that invests primarily in fixed income
            securities. However, an equity portfolio is generally subject to
            higher levels of overall risk and price volatility than a fixed
            income portfolio and is considered to be a more aggressive
            investment. Based on these assumptions, the following chart gives
            some indication of the comparative risk/return potential of the
            Portfolios according to their equity/fixed income allocation
            targets and ranges. Note that these assumptions may not be correct
            in future market conditions and the chart may not accurately
            predict the actual comparative risk/return of the Portfolios under
            all market conditions.



                90/10 Portfolio might be suitable for investors that have a
                relatively long time horizon, seek long-term capital
                appreciation potential and have a fairly high tolerance for
                risk and volatility.

                60/40 Portfolio might be suitable for investors that have a
                medium-range time horizon, seek a balance of long-term
                capital appreciation potential and income and have medium
                tolerance for risk and volatility.

                30/70 Portfolio might be suitable for investors that have a
                shorter time horizon, seek a higher level of income combined
                with some potential for long-term capital appreciation and
                have a lower tolerance for risk and volatility.



              It is possible to lose money on investments in the Portfolios.
            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.
            The fact that a Portfolio may have had good performance in the
            past (for example, during the year ended 1999) is no assurance
            that the value of the Fund's investments will not decline in the
            future or will appreciate at a slower rate. An investment in a
            Portfolio is not a deposit of a bank and is not guaranteed or
            insured by the Federal Deposit Insurance Corporation or any other
            government agency.

3 PIMCO Funds: Multi-Manager Series
<PAGE>

            Summary Information (continued)

Asset       PIMCO Advisors L.P. serves as the investment adviser to the
Allocation  Portfolios. PIMCO Advisors selects the Underlying Funds in which
Strategies  the Portfolios may invest. PIMCO Advisors' Asset Allocation
            Committee determines how each Portfolio allocates and reallocates
            its assets among the Underlying Funds selected by PIMCO Advisors
            according to the Portfolio's equity/fixed income allocation
            targets and ranges. The Committee attempts to diversify each
            Portfolio's assets broadly among the major asset classes and sub-
            classes represented by the Underlying Funds.

              The major equity asset classes and sub-classes held by the
            Underlying Stock Funds include those categorized by investment
            style/category (growth, blend, value, enhanced index, sector-
            related), region (U.S. equities, international developed markets,
            international emerging markets), and market capitalization (large-
            cap, mid-cap and small-cap). The major fixed income asset classes
            and sub-classes held by the Underlying Bond Funds include those
            categorized by sector/investment specialty (government securities,
            mortgage-related securities, corporate bonds and inflation-indexed
            bonds), region (U.S. fixed income, developed foreign fixed income,
            emerging markets fixed income), credit quality (investment
            grade/money market, medium grade, high yield), and duration (long-
            term, intermediate-term and short-term).

              Please see "Underlying Funds" in this Prospectus for a
            description of the Underlying Funds as categorized by their
            investment styles and main investments.

              The Portfolios may invest in any or all of the Underlying Funds,
            but will not normally invest in every Underlying Fund at any
            particular time. Each Portfolio may invest in shares of the same
            Underlying Funds; however, the percentage of each Portfolio's
            assets so invested will vary depending on the Portfolio's
            investment objective. The Asset Allocation Committee does not
            allocate a Portfolio's assets according to a predetermined blend
            of particular Underlying Funds. Instead, the Committee meets
            regularly to determine the mix of Underlying Funds appropriate for
            each Portfolio by allocating among the asset classes and sub-
            classes held by the Underlying Funds. When making these decisions,
            the Committee considers various quantitative and qualitative data
            relating to the U.S. and foreign economies and securities markets.
            This data includes projected growth trends in the U.S. and foreign
            economies, forecasts for interest rates and the relationship
            between short- and long-term interest rates (yield curve), current
            and projected trends in inflation, relative valuation levels in
            the equity and fixed income markets and various segments within
            those markets, the outlook and projected growth of various
            industrial sectors, information relating to business cycles,
            borrowing trends and the cost of capital, political trends, data
            relating to trade balances and labor information. The Committee
            may also consider proprietary research provided by the investment
            advisers and sub-advisers of the Underlying Funds.

              The Committee then allocates each Portfolio's assets among the
            Underlying Funds selected by PIMCO Advisors to fill out the asset
            class and sub-class weightings it has identified according to the
            Portfolio's equity/fixed income targets and ranges. The Committee
            has the flexibility to reallocate each Portfolio's assets in
            varying percentages among any or all of the Underlying Funds
            selected by PIMCO Advisors based on the Committee's ongoing
            analyses of the equity and fixed income markets, although these
            tactical shifts are not expected to be large or frequent in
            nature.

"Fund of    The term "fund of funds" is used to describe mutual funds, such as
Funds"      the Portfolios, that pursue their investment objectives by
Structure   investing in other mutual funds. The cost of investing in a
and         Portfolio will generally be higher than the cost of investing in a
Expenses    mutual fund that invests directly in individual stocks and bonds.
            By investing in a Portfolio, an investor will indirectly bear fees
            and expenses charged by the Underlying Funds in which the
            Portfolio invests in addition to the Portfolio's direct fees and
            expenses. In addition, the use of a fund of funds structure could
            affect the timing, amount and character of distibutions to
            shareholders and therefore may increase the amount of taxes
            payable by shareholders.

Portfolio
Descriptions
and Fees
            The following Portfolio Summaries identify each Portfolio's
            investment objective, principal investments and strategies,
            principal risks, performance information and fees and expenses. A
            more detailed "Summary of Principal Risks" describing principal
            risks of investing in the Portfolios begins after the Portfolio
            Summaries. A fuller discussion of the Portfolios' investment
            strategies and related information is included under "Investment
            Objectives and Principal Investment Strategies" in this
            Prospectus.

                                                                   Prospectus  4
<PAGE>

            90/10 Portfolio

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

Principal   Investment           Allocation
Investments Objective            Strategy          Target  Range
and         Seeks long-term
Strategies  capital              Underlying Stock
            appreciation          Funds             90%   80%-100%
            Dividend             Underlying Bond
            Frequency             Funds             10%     0%-20%
            At least
            annually


            The Portfolio seeks to achieve its investment objective by
            normally investing approximately 90% (within a range of 80%--100%)
            of its assets in Underlying Stock Funds and approximately 10%
            (within a range of0%--20%) of its assets in Underlying Bond Funds.
            The Portfolio invests all of its assets in shares of the
            Underlying Funds and does not invest directly in stocks or bonds
            of other issuers. Please see "Asset Allocation Strategies" on page
            3 for a summary of how the Asset Allocation Committee allocates
            and reallocates the Portfolio's assets among particular Underlying
            Funds.

              The Portfolio may concentrate investments in a particular
            Underlying Fund by investing more than 25% of its assets in that
            Fund.

              Based on the Portfolio's equity/fixed income allocation
            strategy, it 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.

--------------------------------------------------------------------------------
Principal   Allocation Risk The Portfolio's investment performance depends
Risks       upon how its assets are allocated and reallocated among particular
            Underlying Funds. A principal risk of investing in the Portfolio
            is that the Asset Allocation Committee's allocation techniques and
            decisions and/or PIMCO Advisors' selection of Underlying Funds
            will not produce the desired results, and therefore the Portfolio
            may not achieve its investment objective.

            Underlying Fund Risks The value of your investment in the
            Portfolio is directly related to the investment performance of the
            Underlying Funds in which it invests. Therefore, the principal
            risks of investing in the Portfolio are closely related to the
            principal risks associated with the Underlying Funds and their
            investments. Because the Portfolio's allocation among the
            Underlying Funds will vary, an investment may be subject to any
            and all of these risks at different times and to different
            degrees.

            Among the principal risks of the Underlying Funds, which could
            adversely affect the net asset value, yield and total return of
            the Portfolio, are:

              .Market Risk          .Derivatives Risk   .Interest Rate Risk
              .Issuer Risk          .Foreign Investment .Credit Risk
              .Value Securities     Risk                .High Yield Risk
              Risk                  .Emerging Markets   .Mortgage Risk
              .Growth Securities    Risk                .Management Risk
              Risk                  .Currency Risk
              .Smaller Company      .Focused Investment
              Risk                  Risk
              .Liquidity Risk       .Leveraging Risk

            Please see "Summary of Principal Risks" following the Portfolio
            Summaries for a description of these and other risks associated
            with the Underlying Funds and an investment in the Portfolio.

5 PIMCO Funds: Multi-Manager Series
<PAGE>

            90/10 Portfolio (continued)

--------------------------------------------------------------------------------
Performance The following shows summary performance information for the
Information Portfolio in a bar chart and an Average Annual Total Returns
            table. The information provides some indication of the risks of
            investing in the Portfolio by showing changes in its performance
            from year to year and by showing how the Portfolio's average
            annual returns compare with the returns of broad-based securities
            market indices and an index of mutual funds. The bar chart, the
            information to its right and the Average Annual Total Returns
            table show performance of the Portfolio's Class A shares, which
            are offered in a different prospectus. This is because the
            Portfolio has not offered Institutional Class or Administrative
            Class shares for a full calendar year. Although Class A,
            Institutional Class and Administrative Class shares would have
            similar returns (because all the Portfolio's shares represent
            interests in the same portfolio of securities), Class A
            performance would be lower than Institutional Class or
            Administrative Class performance because of the higher sales
            charges and/or expenses paid by Class A shares. The returns in the
            bar chart and the information to its right do not reflect the
            impact of sales charges (loads). If they did, the returns would be
            lower than those shown. Unlike the bar chart, performance figures
            for Class A shares in the Average Annual Total Returns table
            reflect the impact of sales charges. For periods prior to the
            inception of Institutional Class and Administrative Class shares
            (2/26/99), the Average Annual Total Returns table also shows
            estimated historical performance for those classes based on the
            performance of the Portfolio's Class A shares. The Class A
            performance has been adjusted to reflect that there are no sales
            charges and lower distribution and/or service (12b-1) fees (if
            any), administrative fees and other expenses paid by Institutional
            Class and Administrative Class shares. Past performance is no
            guarantee of future results.

            Calendar Year Total Returns -- Class A


<TABLE>
                                         <S>   <C>
                                                            More Recent Return
                                                            Information
                                                            1/1/00-9/30/00 4.52%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4th Qtr.
                                                            '99)
                                                                          14.32%
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            '99)
                                                                          -3.86%
</TABLE>
     [GRAPH]


'99        19.00%



                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
         <S>                                          <C>          <C>
                                                                   Fund Inception
                                                      1 Year       (9/30/98)(/4/)
            ---------------------------------------------------------------------
         Class A                                      12.50%       22.17%
            ---------------------------------------------------------------------
         Institutional Class                          19.80%       28.62%
            ---------------------------------------------------------------------
         Administrative Class                         19.54%       28.33%
            ---------------------------------------------------------------------
         Russell 3000 Index(/1/)                      20.89%       35.92%
            ---------------------------------------------------------------------
         Lipper Multi-Cap Core Funds Average(/2/)     20.63%       35.90%
            ---------------------------------------------------------------------
         Blended Index(/3/)                           20.54%       33.44%
            ---------------------------------------------------------------------
</TABLE>
            (1)  The Russell 3000 Index is an unmanaged index of the 3,000
                 largest U.S. companies based on total market capitalization.
                 It is not possible to invest directly in the index.
            (2)  The Lipper Multi-Cap Core Funds Average is a total return
                 performance average of funds tracked by Lipper Analytical
                 Services, Inc. that invest in companies with a variety of
                 capitalization ranges, without concentrating in any one
                 market capitalization range over an extended period of time.
                 It does not take into account sales charges.
            (3)  The Blended Index represents the blended performance of a
                 hypothetical index developed by PIMCO Advisors made up of 72%
                 Russell 3000 Index, 18% MSCI All Country World ex-U.S. Index
                 and 10% Lehman Brothers Aggregate Bond Index. The Russell
                 3000 Index is described above. The MSCI All Country World ex-
                 U.S. Index is an unmanaged index of stocks representing both
                 developed and emerging markets but excluding the United
                 States. The Lehman Brothers Aggregate Bond Index is an
                 unmanaged index of investment grade, U.S. dollar-denominated
                 fixed income securities of domestic issuers having a maturity
                 greater than one year. It is not possible to invest directly
                 in these indices.
            (4)  The Fund began operations on 9/30/98. Index comparisons begin
                 on 9/30/98.

                                                                   Prospectus  6
<PAGE>

            90/10 Portfolio (continued)

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Portfolio:
Portfolio

            Shareholder Fees (fees paid directly from your investment)
                                                         None

            Annual Portfolio Operating Expenses (expenses that are deducted
            from Portfolio assets)

<TABLE>
         <S>             <C>      <C>            <C>            <C>                <C>
                                                          Other Expenses
                                                 ---------------------------------
                                  Distribution                                     Total Annual
                         Advisory and/or Service Administrative Underlying         Portfolio Operating
         Share Class     Fees     (12b-1) Fees   Fees(/1/)      Fund Expenses(/2/) Expenses(/1/)
            ------------------------------------------------------------------------------------------
         Institutional   None     None           0.15%          0.78%              0.93%
            ------------------------------------------------------------------------------------------
         Administrative  None     0.25%          0.15           0.78               1.18
            ------------------------------------------------------------------------------------------
</TABLE>

            (1) The Administrative Fees for the Portfolio do not reflect a
                voluntary fee waiver of 0.05% currently in effect. While the
                fee waiver is in effect, actual Administrative Fees will be
                0.10%, and Total Annual Portfolio Operating Expenses are
                estimated to be as follows: Institutional Class - 0.88%;
                Administrative Class - 1.13%.
            (2) Based on estimated expenses for the current fiscal year.
                Underlying Fund Expenses for the Portfolio are estimated based
                upon a recent allocation of the Portfolio's assets among
                Underlying Funds and upon the total annual operating expenses
                of Institutional Class shares of these Underlying Funds. For a
                listing of the expenses associated with each Underlying Fund,
                please see "Management of the Portfolios--Underlying Fund
                Expenses." Total Annual Portfolio Operating Expenses and the
                Examples set forth below are based on estimates of the
                Underlying Fund Expenses the Portfolio will incur. Actual
                Underlying Fund Expenses for the 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.

            Examples. The Examples are intended to help you compare the cost
            of investing in Institutional Class or Administrative Class shares
            of the Portfolio with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the
            Portfolio's operating expenses remain the same. Although your
            actual costs may be higher or lower, the Examples show what your
            costs would be based on these assumptions.

<TABLE>
         <S>                   <C>                <C>                <C>                <C>
         Share Class           Year 1             Year 3             Year 5             Year 10
            -----------------------------------------------------------------------------------
         Institutional         $ 95               $296               $515               $1,143
            -----------------------------------------------------------------------------------
         Administrative         120                375                649                1,432
            -----------------------------------------------------------------------------------
</TABLE>

            Taking into account the Administrative Fees waiver described in
            footnote (1) above, the Examples for Years 1, 3, 5 and 10,
            respectively, are as follows: Institutional Class -- $90, $280,
            $487 and $1,103; Administrative Class -- $115, $359, $621 and
            $1,392.


7 PIMCO Funds: Multi-Manager Series
<PAGE>

            60/40 Portfolio


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

Principal   Investment       Allocation         Target  Range
Investments Objective         Strategy
and                          Underlying Stock
Strategies  Seeks long-term   Funds             60%   50%-70%
            capital          Underlying Bond
            appreciation and  Funds             40%   30%-50%
            current income

            Dividend
            Frequency
            Quarterly


            The Portfolio seeks to achieve its investment objective by
            normally investing approximately 60% (within a range of 50%--70%)
            of its assets in Underlying Stock Funds and approximately 40%
            (within a range of 30%--50%) of its assets in Underlying Bond
            Funds. The Portfolio invests all of its assets in shares of the
            Underlying Funds and does not invest directly in stocks or bonds
            of other issuers. Please see "Asset Allocation Strategies" on page
            3 for a summary of how the Asset Allocation Committee allocates
            and reallocates the Portfolio's assets among particular Underlying
            Funds.

              The Portfolio may concentrate investments in a particular
            Underlying Fund by investing more than 25% of its assets in that
            Fund.

              Based on the Portfolio's equity/fixed income allocation
            strategy, it might be suitable for an investor with a medium-range
            time horizon who seeks a balance of long-term capital appreciation
            potential and income and has a medium tolerance for risk and
            volatility.

--------------------------------------------------------------------------------
Principal   Allocation Risk The Portfolio's investment performance depends
Risks       upon how its assets are allocated and reallocated among particular
            Underlying Funds. A principal risk of investing in the Portfolio
            is that the Asset Allocation Committee's allocation techniques and
            decisions and/or PIMCO Advisors' selection of Underlying Funds
            will not produce the desired results, and therefore the Portfolio
            may not achieve its investment objective.

            Underlying Fund Risks The value of your investment in the
            Portfolio is directly related to the investment performance of the
            Underlying Funds in which it invests. Therefore, the principal
            risks of investing in the Portfolio are closely related to the
            principal risks associated with the Underlying Funds and their
            investments. Because the Portfolio's allocation among the
            Underlying Funds will vary, an investment may be subject to any
            and all of these risks at different times and to different
            degrees.

            Among the principal risks of the Underlying Funds, which could
            adversely affect the net asset value, yield and total return of
            the Portfolio, are:

              .Market Risk          .Credit Risk        .Emerging Markets
              .Issuer Risk          .High Yield Risk    Risk
              .Value Securities     .Mortgage Risk      .Currency Risk
              Risk                  .Liquidity Risk     .Focused Investment
              .Growth Securities    .Derivatives Risk   Risk
              Risk                  .Foreign Investment .Leveraging Risk
              .Smaller Company      Risk                .Management Risk
              Risk
              .Interest Rate Risk

            Please see "Summary of Principal Risks" following the Portfolio
            Summaries for a description of these and other risks associated
            with the Underlying Funds and an investment in the Portfolio.


                                                                 Prospectus    8
<PAGE>

            60/40 Portfolio (continued)

--------------------------------------------------------------------------------
Performance The following shows summary performance information for the
Information Portfolio in a bar chart and an Average Annual Total Returns
            table. The information provides some indication of the risks of
            investing in the Portfolio by showing changes in its performance
            from year to year and by showing how the Portfolio's average
            annual returns compare with the returns of broad-based securities
            market indices and an index of mutual funds. The bar chart, the
            information to its right and the Average Annual Total Returns
            table show performance of the Portfolio's Class A shares, which
            are offered in a different prospectus. This is because the
            Portfolio has not offered Institutional Class or Administrative
            Class shares for a full calendar year. Although Class A,
            Institutional Class and Administrative Class shares would have
            similar returns (because all the Portfolio's shares represent
            interests in the same portfolio of securities), Class A
            performance would be lower than Institutional Class or
            Administrative Class performance because of the higher sales
            charges and/or expenses paid by Class A shares. The returns in the
            bar chart and the information to its right do not reflect the
            impact of sales charges (loads). If they did, the returns would be
            lower than those shown. Unlike the bar chart, performance figures
            for Class A shares in the Average Annual Total Returns table
            reflect the impact of sales charges. For periods prior to the
            inception of Institutional Class and Administrative Class shares
            (2/26/99), the Average Annual Total Returns table also shows
            estimated historical performance for those classes based on the
            performance of the Portfolio's Class A shares. The Class A
            performance has been adjusted to reflect that there are no sales
            charges and lower distribution and/or service (12b-1) fees (if
            any), administrative fees and other expenses paid by Institutional
            Class and Administrative Class shares. Past performance is no
            guarantee of future results.

            Calendar Year Total Returns -- Class A

<TABLE>
                                         <S>   <C>
                                                            More Recent Return
                                                            Information
                                                            1/1/00-9/30/00 5.18%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4th Qtr.
                                                            '99)
                                                                           9.40%
                                                            --------------------
                                                            Lowest (3rd Qtr.
                                                            '99)
                                                                          -2.40%
</TABLE>

    [GRAPH]

'99       12.03%


                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
         <S>                                          <C>         <C>
                                                                  Fund Inception
                                                      1 Year      (9/30/98)(/5/)
            --------------------------------------------------------------------
         Class A                                        5.87%      13.02%
            --------------------------------------------------------------------
         Institutional Class                           12.71%      18.92%
            --------------------------------------------------------------------
         Administrative Class                          12.43%      18.62%
            --------------------------------------------------------------------
         Russell 3000 Index(/1/)                       20.89%      35.92%
            --------------------------------------------------------------------
         Lehman Brothers Aggregate Bond Index(/3/)     -0.82%      -0.39%
            --------------------------------------------------------------------
         Lipper Balanced Fund Average(/3/)              8.79%      16.57%
            --------------------------------------------------------------------
         Blended Index(/4/)                            13.12%      21.30%
            --------------------------------------------------------------------
</TABLE>
            (1)  The Russell 3000 Index is an unmanaged index of the 3,000
                 largest U.S. companies based on total market capitalization.
                 It is not possible to invest directly in the index.
            (2)  The Lehman Brothers Aggregate Bond Index is an unmanaged
                 index of investment grade, U.S. dollar-denominated fixed
                 income securities of domestic issuers having a maturity
                 greater than one year. It is not possible to invest directly
                 in the index.
            (3)  The Lipper Balanced Fund Average is a total return
                 performance average of funds tracked by Lipper Analytical
                 Services, Inc. whose primary objective is to conserve
                 principal by maintaining at all times a balanced portfolio of
                 both stocks and bonds. It does not take into account sales
                 charges.
            (4)  The Blended Index represents the blended performance of a
                 hypothetical index developed by PIMCO Advisors made up of 48%
                 Russell 3000 Index, 12% MSCI All Country World ex-U.S. Index
                 and 40% Lehman Brothers Aggregate Bond Index. The Russell
                 3000 Index and Lehman Brothers Aggregate Bond Index are
                 described above. The MSCI All Country World ex-U.S. Index is
                 an unmanaged index of stocks representing both developed and
                 emerging markets but excluding the United States. It is not
                 possible to invest directly in these indices.
            (5)  The Fund began operations on 9/30/98. Index comparisons begin
                 on 9/30/98.

9 PIMCO Funds: Multi-Manager Series
<PAGE>

            60/40 Portfolio (continued)

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Portfolio:
Portfolio

            Shareholder Fees (fees paid directly from your investment)
                                                         None

            Annual Portfolio Operating Expenses (expenses that are deducted
            from Portfolio assets)

<TABLE>
         <S>             <C>      <C>            <C>            <C>                <C>
                                                          Other Expenses
                                                 ---------------------------------
                                  Distribution                                     Total Annual
                         Advisory and/or Service Administrative Underlying         Portfolio Operating
         Share Class     Fees     (12b-1) Fees   Fees(/1/)      Fund Expenses(/2/) Expenses(/1/)
            ------------------------------------------------------------------------------------------
         Institutional   None     None           0.15%          0.67%              0.82%
            ------------------------------------------------------------------------------------------
         Administrative  None     0.25%          0.15           0.67               1.07
            ------------------------------------------------------------------------------------------
</TABLE>

            (1)  The Administrative Fees for the Portfolio do not reflect a
                 voluntary fee waiver of 0.05% currently in effect. While the
                 fee waiver is in effect, actual Administrative Fees will be
                 0.10%, and Total Annual Portfolio Operating Expenses are
                 estimated to be as follows: Institutional Class - 0.77%;
                 Administrative Class - 1.02%.
            (2)  Based on estimated expenses for the current fiscal year.
                 Underlying Fund Expenses for the Portfolio are estimated
                 based upon a recent allocation of the Portfolio's assets
                 among Underlying Funds and upon the total annual operating
                 expenses of Institutional Class shares of these Underlying
                 Funds. For a listing of the expenses associated with each
                 Underlying Fund, please see "Management of the Portfolios--
                 Underlying Fund Expenses." Total Annual Portfolio Operating
                 Expenses and the Examples set forth below are based on
                 estimates of the Underlying Fund Expenses the Portfolio will
                 incur. Actual Underlying Fund Expenses for the 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.

            Examples. The Examples are intended to help you compare the cost
            of investing in Institutional Class or Administrative Class shares
            of the Portfolio with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the
            Portfolio's operating expenses remain the same. Although your
            actual costs may be higher or lower, the Examples show what your
            costs would be based on these assumptions.

<TABLE>
         <S>                   <C>                <C>                <C>                <C>
         Share Class           Year 1             Year 3             Year 5             Year 10
            -----------------------------------------------------------------------------------
         Institutional         $ 84               $262               $455               $1,014
            -----------------------------------------------------------------------------------
         Administrative         109                340                590                1,306
            -----------------------------------------------------------------------------------
</TABLE>

            Taking into account the Administrative Fees waiver described in
            footnote (1) above, the Examples for Years 1, 3, 5 and 10,
            respectively, are as follows: Institutional Class -- $79, $246,
            $427 and $973; Administrative Class -- $104, $324, $563 and
            $1,265.

                                                                   Prospectus 10
<PAGE>

            30/70 Portfolio

--------------------------------------------------------------------------------
Principal   Investment             Allocation      Target    Range
Investments Objective              Strategy        30%       25%--35%
and         Seeks current          Underlying      70%       65%--75%
Strategies  income, with           Stock Funds
            long-term              Underlying
            capital                Bond Funds
            appreciation as
            a secondary
            objective

            Dividend
            Frequency
            Monthly
            The Portfolio seeks to achieve its investment objective by
            normally investing approximately 30% (within a range of 25%--35%)
            of its assets in Underlying Stock Funds and approximately 70%
            (within a range of 65%--75%) of its assets in Underlying Bond
            Funds. The Portfolio invests all of its assets in shares of the
            Underlying Funds and does not invest directly in stocks or bonds
            of other issuers. Please see "Asset Allocation Strategies" on page
            3 for a summary of how the Asset Allocation Committee allocates
            and reallocates the Portfolio's assets among particular Underlying
            Funds.

              The Portfolio may concentrate investments in a particular
            Underlying Fund by investing more than 25% of its assets in that
            Fund.

              Based on the Portfolio's equity/fixed income allocation
            strategy, it might be suitable for an investor with a shorter time
            horizon who seeks a higher level of income combined with some
            potential for long-term capital appreciation and has a lower
            tolerance for risk and volatility.

--------------------------------------------------------------------------------
Principal   Allocation Risk The Portfolio's investment performance depends
Risks       upon how its assets are allocated and reallocated among particular
            Underlying Funds. A principal risk of investing in the Portfolio
            is that the Asset Allocation Committee's allocation techniques and
            decisions and/or PIMCO Advisors' selection of Underlying Funds
            will not produce the desired results, and therefore the Portfolio
            may not achieve its investment objective.

            Underlying Fund Risks The value of your investment in the
            Portfolio is directly related to the investment performance of the
            Underlying Funds in which it invests. Therefore, the principal
            risks of investing in the Portfolio are closely related to the
            principal risks associated with the Underlying Funds and their
            investments. Because the Portfolio's allocation among the
            Underlying Funds will vary, an investment may be subject to any
            and all of these risks at different times and to different
            degrees.

            Among the principal risks of the Underlying Funds, which could
            adversely affect the net asset value, yield and total return of
            the Portfolio, are:

              . Interest Rate    . Value Securities     . Emerging Markets
                Risk               Risk                   Risk
              . Credit Risk      . Growth Securities    . Currency Risk
              . High Yield Risk    Risk                 . Focused
              . Mortgage Risk    . Smaller Company        Investment Risk
              . Market Risk        Risk                 . Leveraging Risk
              . Issuer Risk      . Liquidity Risk       . Management Risk
                                 . Derivatives Risk
                                 . Foreign
                                   Investment Risk

            Please see "Summary of Principal Risks" following the Portfolio
            Summaries for a description of these and other risks associated
            with the Underlying Funds and an investment in the Portfolio.

11 PIMCO Funds: Multi-Manager Series
<PAGE>

            30/70 Portfolio (continued)

--------------------------------------------------------------------------------
Performance The following shows summary performance information for the
Information Portfolio in a bar chart and an Average Annual Total Returns
            table. The information provides some indication of the risks of
            investing in the Portfolio by showing changes in its performance
            from year to year and by showing how the Portfolio's average
            annual returns compare with the returns of broad-based securities
            market indices and an index of mutual funds. The bar chart, the
            information to its right and the Average Annual Total Returns
            table show performance of the Portfolio's Class A shares, which
            are offered in a different prospectus. This is because the
            Portfolio has not offered Institutional Class or Administrative
            Class shares for a full calendar year. Although Class A,
            Institutional Class and Administrative Class shares would have
            similar returns (because all the Portfolio's shares represent
            interests in the same portfolio of securities), Class A
            performance would be lower than Institutional Class or
            Administrative Class performance because of the higher sales
            charges and/or expenses paid by Class A shares. The returns in the
            bar chart and the information to its right do not reflect the
            impact of sales charges (loads). If they did, the returns would be
            lower than those shown. Unlike the bar chart, performance figures
            for Class A shares in the Average Annual Total Returns table
            reflect the impact of sales charges. For periods prior to the
            inception of Institutional Class and Administrative Class shares
            (2/26/99), the Average Annual Total Returns table also shows
            estimated historical performance for those classes based on the
            performance of the Portfolio's Class A shares. The Class A
            performance has been adjusted to reflect that there are no sales
            charges and lower distribution and/or service (12b-1) fees (if
            any), administrative fees and other expenses paid by Institutional
            Class and Administrative Class shares. Past performance is no
            guarantee of future results.

            Calendar Year Total Returns -- Class A

<TABLE>
                                         <S>   <C>
                                                            More Recent Return
                                                            Information
                                                            1/1/00-9/30/00 5.78%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (4th Qtr.
                                                            '99)
                                                                           4.74%
                                                            --------------------
                                                            Lowest (1st Qtr.
                                                            '99)
                                                                          -1.43%
</TABLE>

    [GRAPH]

'99        4.64%


                  Calendar Year End (through 12/31)

            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
         <S>                                          <C>        <C>
                                                                 Fund Inception
                                                      1 Year     (9/30/98)(/4/)
            -------------------------------------------------------------------
         Class A                                      -0.07%      4.73%
            -------------------------------------------------------------------
         Institutional Class                           5.18%      9.22%
            -------------------------------------------------------------------
         Administrative Class                          4.92%      8.94%
            -------------------------------------------------------------------
         Lehman Brothers Aggregate Bond Index(/1/)    -0.82%     -0.39%
            -------------------------------------------------------------------
         Lipper General Bond Fund Average(/2/)         1.17%      2.88%
            -------------------------------------------------------------------
         Blended Index(/3/)                            6.00%     10.04%
            -------------------------------------------------------------------
</TABLE>
            (1) The Lehman Brothers Aggregate Bond Index is an unmanaged index
                of investment grade, U.S. dollar-denominated fixed income
                securities of domestic issuers having a maturity greater than
                one year. It is not possible to invest directly in the index.
            (2) The Lipper General Bond Fund Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that intend to keep most of their assets in
                corporate and government debt issues and do not have any
                quality or maturity restrictions. It does not take into
                account sales charges.
            (3) The Blended Index represents the blended performance of a
                hypothetical index developed by PIMCO Advisors made up of 24%
                Russell 3000 Index, 6% MSCI All Country World ex-U.S. Index
                and 70% Lehman Brothers Aggregate Bond Index. The Russell 3000
                Index is an unmanaged index of the 3,000 largest U.S.
                companies based on total market capitalization. The MSCI All
                Country World ex-U.S. Index is an unmanaged index of stocks
                representing both developed and emerging markets but excluding
                the United States. The Lehman Brothers Aggregate Bond Index is
                described above. It is not possible to invest directly in
                these indices.
            (4) The Fund began operations on 9/30/98. Index comparisons begin
                on 9/30/98.

                                                                   Prospectus 12
<PAGE>

            30/70 Portfolio (continued)

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Portfolio:
Portfolio

            Shareholder Fees (fees paid directly from your investment)
                                                         None

            Annual Portfolio Operating Expenses (expenses that are deducted
            from Portfolio assets)

<TABLE>
         <S>             <C>      <C>            <C>            <C>                <C>
                                                          Other Expenses
                                                 ---------------------------------
                                  Distribution                                     Total Annual
                         Advisory and/or Service Administrative Underlying         Portfolio Operating
         Share Class     Fees     (12b-1) Fees   Fees(/1/)      Fund Expenses(/2/) Expenses(/1/)
            ------------------------------------------------------------------------------------------
         Institutional   None     None           0.15%          0.56%              0.71%
            ------------------------------------------------------------------------------------------
         Administrative  None     0.25%          0.15           0.56               0.96
            ------------------------------------------------------------------------------------------
</TABLE>

            (1)  The Administrative Fees for the Portfolio do not reflect a
                 voluntary fee waiver of 0.05% currently in effect. While the
                 fee waiver is in effect, actual Administrative Fees will be
                 0.10%, and Total Annual Portfolio Operating Expenses are
                 estimated to be as follows: Institutional Class - 0.66%;
                 Administrative Class - 0.91%.
            (2)  Based on estimated expenses for the current fiscal year.
                 Underlying Fund Expenses for the Portfolio are estimated
                 based upon a recent allocation of the Portfolio's assets
                 among Underlying Funds and upon the total annual operating
                 expenses of Institutional Class shares of these Underlying
                 Funds. For a listing of the expenses associated with each
                 Underlying Fund, please see "Management of the Portfolios--
                 Underlying Fund Expenses." Total Annual Portfolio Operating
                 Expenses and the Examples set forth below are based on
                 estimates of the Underlying Fund Expenses the Portfolio will
                 incur. Actual Underlying Fund Expenses for the 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.

            Examples. The Examples are intended to help you compare the cost
            of investing in Institutional Class or Administrative Class shares
            of the Portfolio with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the
            Portfolio's operating expenses remain the same. Although your
            actual costs may be higher or lower, the Examples show what your
            costs would be based on these assumptions.

<TABLE>
         <S>                   <C>                <C>                <C>                <C>
         Share Class           Year 1             Year 3             Year 5             Year 10
            -----------------------------------------------------------------------------------
         Institutional         $73                $227               $395               $   883
            -----------------------------------------------------------------------------------
         Administrative         98                 306                531                 1,178
            -----------------------------------------------------------------------------------
</TABLE>

            Taking into account the Administrative Fees waiver described in
            footnote (1) above, the Examples for Years 1, 3, 5 and 10,
            respectively, are as follows: Institutional Class -- $67, $211,
            $367 and $842; Administrative Class -- $93, $290, $503 and $1,138.

13 PIMCO Funds: Multi-Manager Series
<PAGE>

            Summary of Principal Risks

            The value of an investment in a Portfolio changes with the values
            of that Portfolio's investments in the Underlying Funds. Many
            factors can affect those values. The factors that are most likely
            to have a material effect on a particular Portfolio's investments
            as a whole are called "principal risks." The principal risks of
            each Portfolio are identified in the Portfolio Summaries beginning
            on page 5 and are summarized in this section. There is no
            guarantee that a Portfolio will be able to achieve its investment
            objective.

            Allocation Risk

            Each Portfolio's investment performance depends upon how its
            assets are allocated and reallocated among particular Underlying
            Funds according to the Portfolio's equity/fixed income allocation
            targets and ranges. A principal risk of investing in each
            Portfolio is that PIMCO Advisors' Asset Allocation Committee will
            make less than optimal or poor asset allocation decisions and/or
            that PIMCO Advisors will make less than optimal decisions in
            selecting the Underlying Funds in which the Portfolios invest. The
            Committee attempts to identify asset classes and sub-classes
            represented by the Underlying Funds that will provide consistent,
            quality performance for the Portfolios, but there is no guarantee
            that the Committee's allocation techniques will produce the
            desired results. It is possible that the Committee and/or PIMCO
            Advisors will focus on Underlying Funds that perform poorly or
            underperform other available Funds under various market
            conditions. You could lose money on your investment in a Portfolio
            as a result of these allocation decisions.

            Underlying Fund Risks

            Because each Portfolio invests all of its assets in Underlying
            Funds, the risks associated with investing in the Portfolios are
            closely related to the risks associated with the securities and
            other investments 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. There
            can be no assurance that the investment objective of any
            Underlying Fund will be achieved.

              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. 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, which will vary. A Portfolio's
            investment in a particular Underlying Fund may and in some cases
            is expected to exceed 25% of its 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.

              The following summarizes principal risks associated with
            investments in the Underlying Funds and, indirectly, with your
            investment in a Portfolio. Each Underlying Fund may be subject to
            additional principal risks other than those described below
            because the types of investments made by an Underlying Fund can
            change over time. The summary is not intended to be exhaustive.
            For a more complete description of these risks and the securities
            and investment techniques used by the Underlying Funds, please
            refer to 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.

Market      The market price of securities owned by an Underlying Fund may go
Risk        up or down, sometimes rapidly or unpredictably. Securities may
            decline in value due to factors affecting securities markets
            generally or particular industries represented in the securities
            markets. The value of a security may decline due to general market
            conditions which are not specifically related to a particular
            company, such as real or perceived adverse economic conditions,
            changes in the general outlook for corporate earnings, changes in
            interest or currency rates, or adverse investor sentiment
            generally. They may also decline due to factors which affect a
            particular industry or industries, such as labor shortages or
            increased production costs and competitive conditions within an
            industry. Equity securities generally have greater price
            volatility than fixed income securities and the Underlying Stock
            Funds are particularly sensitive to these market risks.

Issuer
Risk
            The value of a security may also decline for a number of reasons
            which directly relate to the issuer, such as management
            performance, financial leverage and reduced demand for the
            issuer's goods or services.

                                                                   Prospectus 14
<PAGE>

Value       Each Underlying Stock Fund may invest in companies that may not be
Securities  expected to experience significant earnings growth, but whose
Risk        securities the Fund's portfolio manager believes are selling at a
            price lower than their true value. PIMCO Equity Income,
            Renaissance, Value, Small-Cap Value, Capital Appreciation, Mid-Cap
            and Micro-Cap Funds and PIMCO Allianz Select International Fund
            place particular emphasis on value securities. Companies that
            issue value securities may have experienced adverse business
            developments or may be subject to special risks that have caused
            their securities to be out of favor. If a portfolio manager's
            assessment of a company's prospects is wrong, or if the market
            does not recognize the value of the company, the price of its
            securities may decline or may not approach the value that the
            portfolio manager anticipates.

Growth      Each Underlying Stock Fund may invest in equity securities of
Securities  companies that its portfolio manager believes will experience
Risk        relatively rapid earnings growth. PIMCO Growth, Target,
            Opportunity, Capital Appreciation, Mid-Cap, Micro-Cap and
            Innovation Funds and PIMCO Allianz Select International Fund place
            particular emphasis on growth securities. Growth securities
            typically trade at higher multiples of current earnings than other
            securities. Therefore, the values of growth securities may be more
            sensitive to changes in current or expected earnings than the
            values of other securities.

Smaller     The general risks associated with equity securities and liquidity
Company     risk are particularly pronounced for securities of companies with
Risk        market capitalizations that are small compared to other publicly
            traded companies. These companies may have limited product lines,
            markets or financial resources or they may depend on a few key
            employees. Securities of smaller companies may trade less
            frequently and in lesser volume than more widely held securities
            and their values may fluctuate more sharply than other securities.
            They may also trade in the over-the-counter market or on a
            regional exchange, or may otherwise have limited liquidity. PIMCO
            Opportunity, Micro-Cap, Small-Cap Value and Innovation Funds
            generally have substantial exposure to this risk. PIMCO Target and
            Mid-Cap Funds and PIMCO Allianz Select International Fund also
            have significant exposure to this risk because they invest
            substantial assets in companies with medium-sized market
            capitalizations, which are smaller and generally less-seasoned
            than the largest companies. Smaller company risk also applies to
            fixed income securities issued by smaller companies and may affect
            certain investments of the Underlying Bond Funds.

Liquidity
Risk        Many of the Underlying Funds are subject to liquidity risk.
            Liquidity risk exists when particular investments are difficult to
            purchase or sell, possibly preventing a Fund from selling out of
            these illiquid securities at an advantageous time or price.
            Underlying Funds with principal investment strategies that involve
            securities of companies with smaller market capitalizations,
            foreign securities, derivatives or securities with substantial
            market and/or credit risk tend to have the greatest exposure to
            liquidity risk.

Derivatives Many of the Underlying Funds may, but are not required to, use a
Risk        number of derivative instruments for risk management purposes or
            as part of their investment strategies. 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. Examples of
            derivative instruments include options contracts, futures
            contracts, options on futures contracts and swap agreements. An
            Underlying Fund's use of derivative instruments involves risks
            different from, or possibly greater than, the risks associated
            with investing directly in securities and other traditional
            investments. Also, an Underlying Fund's portfolio manager may
            decide not to employ any of these strategies and there is no
            assurance that any derivatives strategy used by a Fund will
            succeed.

              A description of the various derivative instruments in which the
            Underlying Funds may invest and the risks associated with each
            instrument is included in the Underlying Fund prospectuses and in
            the Statement of Additional Information. The following provides a
            more general discussion of important risk factors relating to all
            derivative instruments that may be used 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 instrument 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.


15 PIMCO Funds: Multi-Manager Series
<PAGE>

              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.

              Leveraging 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. To limit leveraging risk, the Underlying Funds
            observe asset segregation requirements to cover their obligations
            under derivative instruments.

              Lack of Availability Because the markets for certain derivative
            instruments (including markets located in foreign countries) are
            relatively new and still developing, suitable derivatives
            transactions may not be available in all circumstances for risk
            management or other purposes. There is no assurance that an
            Underlying Fund will engage in derivatives transactions at any
            time or from time to time. A Fund's ability to use derivatives may
            also be limited by certain regulatory considerations.

              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 an
            Underlying Fund's interest. If a portfolio manager incorrectly
            forecasts the values of securities, currencies or interest rates
            or other economic factors in using derivatives for an Underlying
            Fund, the Fund might have been in a better position if it had not
            entered into the transaction at all. 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 other investments of an
            Underlying Fund. An Underlying Fund may also have to buy or sell a
            security at a disadvantageous time or price because the Fund is
            legally required to maintain offsetting positions or asset
            coverage in connection with certain derivatives transactions.

              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 indexes they are
            designed to closely track. In addition, an Underlying Fund's use
            of derivatives may also cause the Fund to realize higher amounts
            of short-term capital gains (taxed at ordinary income tax rates
            when distributed to shareholders who are individuals) than if the
            Fund had not used such instruments.

Foreign     Many Underlying Funds (in particular, PIMCO International,
(non-       Structured Emerging Markets, Tax-Efficient Structured Emerging
U.S.)       Markets, Global Bond, Foreign Bond and Emerging Markets Bond Funds
Investment  and PIMCO Allianz Select International Fund) invest in securities
Risk        of foreign issuers, securities traded principally in securities
            markets outside the United States and/or securities denominated in
            foreign currencies (together, "foreign securities"). These Funds
            may experience more rapid and extreme changes in value than Funds
            that invest exclusively in securities of U.S. issuers or
            securities that trade exclusively in U.S. markets.

              The securities markets of many foreign countries are relatively
            small, with a limited number of companies representing a small
            number of industries. Foreign securities often trade with less
            frequency and volume than domestic securities and therefore may
            exhibit greater price volatility. Additionally, issuers of foreign
            securities are usually not subject to the same degree of
            regulation as U.S. issuers. Reporting, accounting and auditing
            standards of foreign countries differ, in some cases
            significantly, from U.S. standards. Also, nationalization,
            expropriation or confiscatory taxation, currency blockage,
            political changes or diplomatic developments could adversely
            affect an Underlying Fund's investments in a foreign country. In
            the event of nationalization, expropriation or other confiscation,
            a Fund could lose its entire investment in foreign securities. To
            the extent that an Underlying Fund invests a significant portion
            of its assets in a narrowly defined geographic area such as
            Eastern Europe, South Africa or Asia, the Fund will generally have
            more exposure to regional economic risks associated with foreign
            investments. Adverse conditions in certain regions (such as
            Southeast Asia) can also adversely affect securities of other
            countries whose economies appear to be unrelated. In addition,
            special U.S. tax considerations may apply to an Underlying Fund's
            investment in foreign securities.


                                                                   Prospectus 16
<PAGE>

              Certain Underlying Bond Funds may invest in sovereign debt
            issued by governments, their agencies or instrumentalities, or
            other government-related entities. Holders of sovereign debt may
            be requested to participate in the rescheduling of such debt and
            to extend further loans to governmental entities. In addition,
            there is no bankruptcy proceeding by which defaulted sovereign
            debt may be collected.

Emerging    Certain Underlying Funds (in particular, PIMCO Structured Emerging
Markets     Markets, Tax-Efficient Structured Emerging Markets and Emerging
Risk        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 different from, or greater than, the
            risks of investing in developed foreign countries.

Currency    Many Underlying Funds may invest directly in foreign currencies or
Risk        in securities that trade in, or receive revenues in, foreign
            currencies. To the extent that they do so, these Funds are subject
            to the risk that those currencies will decline in value relative
            to the U.S. dollar, or, in the case of hedging positions, that the
            U.S. Dollar will decline in value relative to the currency being
            hedged. PIMCO Global Bond, Foreign Bond, Emerging Markets Bond,
            International, Structured Emerging Markets and Tax-Efficient
            Structured Emerging Markets Funds and PIMCO Allianz Select
            International Fund are particularly sensitive to currency risk.
            Currency rates in foreign countries may fluctuate significantly
            over short periods of time for a number of reasons, including
            changes in interest rates, intervention (or the failure to
            intervene) by U.S. or foreign governments, central banks or
            supranational entities such as the International Monetary Fund, or
            by the imposition of currency controls or other political
            developments in the U.S. or abroad. For example, uncertainty
            surrounds the introduction of the euro (a common currency unit for
            the European Union) and its effect on the value of European
            currencies as well as securities denominated in local European
            currencies. These and other currencies in which Underlying Fund
            assets are denominated may be devalued against the U.S. dollar,
            resulting in a loss to such Funds.

Focused     Focusing Fund investments in a small number of issuers, industries
Investment  or foreign currencies increases risk. PIMCO Global Bond, Foreign
Risk        Bond and Emerging Markets Bond Funds are "non-diversified," which
            means that they invest in a smaller number of issuers than
            diversified mutual funds. Other Underlying Funds also normally
            invest in a relatively small number of issuers. In addition, many
            Underlying Bond Funds may invest a substantial portion of their
            assets in the bonds of similar projects or from issuers in the
            same state. To the extent that they focus their investments, the
            Underlying Funds may have more risk because changes in the value
            of a single security or the impact of a single economic, political
            or regulatory occurrence may have a greater adverse impact on the
            Underlying Fund's net asset value. Some of those investments also
            may present substantial credit or other risks. PIMCO
            International, Structured Emerging Markets, Tax-Efficient
            Structured Emerging Markets, Global Bond, Foreign Bond and
            Emerging Markets Bond Funds and PIMCO Allianz Select International
            Fund may be subject to increased risk to the extent they focus
            their assets in securities denominated in a particular foreign
            currency or in a narrowly defined geographic area outside the
            U.S., because companies in these areas may share common
            characteristics and are often subject to similar business risks
            and regulatory burdens, and their securities may react similarly
            to economic, market, political or other developments. Similarly,
            PIMCO Innovation Fund is vulnerable to events affecting companies
            which use innovative technologies to gain a strategic, competitive
            advantage in their industry and companies that provide and service
            those technologies because it normally concentrates its
            investments in those companies. Also, the Underlying Funds may
            from time to time have greater risk to the extent they invest a
            substantial portion of their assets in companies in related
            industries such as "technology" or "financial and business
            services," which may share common characteristics, are often
            subject to similar business risks and regulatory burdens, and
            whose securities may react similarly to economic, market,
            political or other developments.

             Although each Portfolio normally invests in a number of different
            Underlying Funds, to the extent that a Portfolio concentrates a
            significant portion of its assets in a single Underlying Fund, it
            will be particularly sensitive to the risks associated with that
            Fund and any investments in which that Fund concentrates.

Leveraging  Leverage, including borrowing, will cause the value of an
Risk        Underlying  Fund's shares to be more volatile that if the Fund did
            not use leverage. This is because leverage tends to exaggerate the
            effect of any increase or decrease in the value of a Fund's
            portfolio securities. Certain Underlying Funds may engage in
            transactions or purchase instruments that give rise to forms of
            leverage. Such transactions and instruments may include, among
            others, the use of reverse repurchase agreements and other
            borrowings, the investment of collateral from loans of portfolio
            securities, or the use of when-issued, delayed-delivery or forward
            commitment transactions. An Underlying Fund's use of derivatives
            may also involve leverage. The use of leverage may also cause an
            Underlying Fund to liquidate portfolio positions when it may not
            be advantageous to do so in order to satisfy its obligations or to
            meet segregation requirements.


17 PIMCO Funds: Multi-Manager Series
<PAGE>

Interest    All of the Underlying Funds that invest in fixed income
Rate Risk   securities, and particularly the Underlying Bond Funds, are
            subject to interest rate risk. Changes in the market values of
            fixed income securities 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 declining
            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 that is used to determine the sensitivity of a security's
            price to changes in interest rates. Securities with longer
            durations tend to be more sensitive to changes in interest rates,
            usually making them more volatile than securities with shorter
            durations. Accordingly, Underlying Bond Funds with longer average
            portfolio durations (e.g., PIMCO Long-Term U.S. Government Fund)
            will generally be more sensitive to changes in interest rates than
            Funds with shorter average portfolio 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).

             Many Underlying Funds, including most of the Underlying Bond
            Funds, may invest in securities that are particularly sensitive to
            fluctuations in prevailing interest rates and have relatively high
            levels of interest rate 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).

Credit      All of the Underlying Funds are subject to credit risk. This is
Risk        the risk that the issuer or the guarantor of a fixed income
            security, or the counterparty to a derivatives contract,
            repurchase agreement or a loan of portfolio securities, will be
            unable or unwilling to make timely principal and/or interest
            payments, or to otherwise honor its obligations. Securities are
            subject to varying degrees of credit risk, which are often
            reflecting in credit ratings provided by rating agencies such as
            Moody's Investors Service, Inc. ("Moody's") and Standard & Poor's
            Ratings Services ("S&P").

             The Underlying Funds that invest in fixed income securities
            (particularly the Underlying Bond Funds) 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.

High        High yield securities (commonly known as "junk bonds") are fixed
Yield       income securities rated lower than Baa by Moody's or BBB by S&P,
Risk        or unrated securities determined to be of comparable quality.
            Underlying Bond Funds which invest in high yield securities (in
            particular, PIMCO High Yield and Emerging Markets Bond Funds) may
            be subject to greater levels of interest rate, credit and
            liquidity risk than Funds that invest exclusively in higher
            quality fixed income securities (e.g., PIMCO Money Market and
            Long-Term U.S. Government Funds). These securities are considered
            predominately speculative with respect to the issuer's continuing
            ability to make principal and interest payments (credit risk).
            These securities may also be more susceptible to real or perceived
            adverse economic and competitive industry conditions than higher
            quality fixed income securities. An economic downturn or period of
            rising interest rates could adversely affect the market for these
            securities and reduce an Underlying Bond Fund's ability to sell
            them (liquidity risk).

Mortgage    Most of the Underlying Bond Funds may invest in mortgage-related
Risk        securities. Rising interest rates tend to extend the duration of
            mortgage-related securities, making them more sensitive to changes
            in interest rates. As a result, in a period of rising interest
            rates, an Underlying Fund that holds mortgage-related securities
            may exhibit additional volatility. This is sometimes referred to
            as extension risk. In addition, mortgage-related securities may
            involve special risks relating to unanticipated rates of
            prepayment on the mortgages underlying the securities. This is
            sometimes referred to as prepayment risk. Declining interest rates
            may tend to increase prepayments, and these prepayments would have
            to be reinvested at the then-prevailing lower interest rates.
            Therefore, an Underlying Fund that holds mortgage-related
            securities may have less potential for capital appreciation during
            periods of declining interest rates than Funds that invest in
            other types of fixed income securities of similar maturities.

                                                                  Prospectus 18
<PAGE>

Management  Each Underlying Fund is subject to management risk because it is
Risk        an actively managed investment portfolio. PIMCO Advisors, Pacific
            Investment Management Company LLC ("Pacific Investment Management
            Company"), and the sub-advisers and individual portfolio managers
            of the Underlying Funds will apply investment techniques and risk
            analyses in making investment decisions for the Funds, but there
            can be no guarantee that they will produce the desired results.

A Note on
PIMCO       Each Portfolio may invest in PIMCO StocksPLUS Fund. While the
StocksPLUS  investment objective of that Fund is to achieve a total return
Fund        which exceeds the total return performance of the S&P 500 Index,
            it does so by investing substantially all of its assets in a
            combination of equity-based (S&P 500 Index) derivative
            instruments, backed by a portfolio of fixed income securities.
            Consequently, the risks of investing in the Fund include
            derivatives risk and the risks generally associated with the
            Underlying Bond Funds. To the extent that the Fund invests in S&P
            500 Index derivatives backed by a portfolio of fixed income
            securities, under certain conditions, generally in a market where
            the value of both S&P 500 Index 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 Index stocks.

19 PIMCO Funds: Multi-Manager Series
<PAGE>

            Investment Objectives and Principal Investment Strategies

            The investment objective and principal investment strategies 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.

Portfolio   90/10 Portfolio seeks long-term capital appreciation. Under normal
Descriptionsconditions, 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.

             PIMCO Advisors serves as the investment adviser to the Portfolios
            and selects the Underlying Funds in which the Portfolios may
            invest. PIMCO Advisors' Asset Allocation Committee determines how
            each Portfolio allocates and reallocates its assets among the
            Underlying Funds selected by PIMCO Advisors according to the
            Portfolio's equity/fixed income allocation targets and ranges.
            Please see "Asset Allocation Strategies" in the Summary
            Information section above for a description of the allocation
            strategies and techniques used by the Committee. The table below
            illustrates the equity and fixed income allocation targets and
            typical ranges for each Portfolio under normal market conditions.

             Equity and Fixed Income Targets and Ranges
             (as a percentage of each Portfolio's total investments)

<TABLE>
<CAPTION>
                                                             Typical
           PIMCO Funds                            Target     Allocation
           Asset Allocation Series                Allocation Range
               --------------------------------------------------------
           <S>                                    <C>        <C>
           90/10 Portfolio
            Equity--Underlying Stock Funds        90%        80% - 100%
            Fixed Income--Underlying Bond Funds*  10%         0% -  20%
               --------------------------------------------------------
           60/40 Portfolio
            Equity--Underlying Stock Funds        60%        50% -  70%
            Fixed Income--Underlying Bond Funds*  40%        30% -  50%
               --------------------------------------------------------
           30/70 Portfolio
            Equity--Underlying Stock Funds        30%        25% -  35%
            Fixed Income--Underlying Bond Funds*  70%        65% -  75%
</TABLE>

              * The Fixed Income portion may include a money market component
              through investments in PIMCO Money Market Fund.


              Each Portfolio invests all of its assets in Underlying Funds and
            may invest in any or all of the 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 exceed 25% of the Portfolio's 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. 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 is also subject to certain investment restrictions
            that are described under "Investment Restrictions" in the
            Statement of Additional Information.

                                                                   Prospectus 20
<PAGE>

Equity      The equity portion of each Portfolio will be allocated among a
Portion     number of Underlying Stock Funds which represent a broad range of
of the      equity-based asset classes and sub-classes and a variety of
Portfolios  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 Investment Style/Category
              .Growth
              .Blend (Broad Market)
              .Value
              .Enhanced Index
              .Sector-Related

            By Region
              .U.S. Equities
              .International Developed Markets Equities
              .International Emerging Markets Equities

            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."


Fixed       The fixed income portion of each Portfolio will be allocated among
Income      a number of Underlying Bond Funds which represent a broad range of
Portion     fixed income-based asset classes and sub-classes and a variety of
of the      investment objectives and strategies. By allocating assets among
Portfolios  these Funds, the fixed income portions of the Portfolios can be
            diversified in multiple ways, including the following:

            By Sector/Investment Specialty
              .Governments
              .Mortgages
              .Corporate
              .Inflation-Indexed

            By Region
              .U.S. Fixed Income
              .Developed Foreign Fixed Income
              .Emerging Markets Fixed Income

            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."

Temporary   In response to unfavorable market and other conditions, each
Defensive   Portfolio may invest up to 100% of its assets in PIMCO Money
Strategies  Market Fund (and may deviate from its asset allocation range) for
            temporary defensive purposes. A Portfolio may also borrow money
            for temporary or emergency purposes. These temporary strategies
            would be inconsistent with the Portfolio's investment objective
            and principal investment strategies and may adversely affect the
            Portfolio's ability to achieve its investment objective.

21 PIMCO Funds: Multi-Manager Series
<PAGE>


Portfolio   A change in the securities held by a Portfolio is known as
Turnover    "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
            taxable capital gains. To the extent such gains relate to
            securities held for twelve months or less, such gains will be
            short-term capital gains taxed at ordinary income tax rates when
            distributed to shareholders who are individuals. The trading costs
            and tax effects associated with portfolio turnover may adversely
            affect a Portfolio's performance and the return to shareholders.


Changes     The investment objective, the equity/fixed income allocation
in          targets and ranges, and, unless otherwise noted, other investment
Investment  policies of each Portfolio described in this Prospectus may be
Objectives  changed by the Board of Trustees without shareholder approval. If
and         there is a change in a Portfolio's investment objective,
Policies    allocation target or range, or other investment policies,
            shareholders should consider whether the Portfolio remains an
            appropriate investment in light of their then current financial
            positions and needs.

                                                                   Prospectus 22
<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 achieve 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.

Advisory    PIMCO Advisors serves as investment adviser for each of the
ArrangementsUnderlying Stock Funds, except that its affiliate, Pacific
for the     Investment Management Company, is the sole investment adviser to
Underlying  PIMCO StocksPLUS Fund. The PIMCO Equity Advisors division of PIMCO
Funds       Advisors manages the investments of several of the Underlying
            Stock Funds. PIMCO Advisors retains sub-advisory firms to manage
            the portfolios of other Underlying Stock Funds. These firms
            include PIMCO/Allianz International Advisors LLC, Cadence Capital
            Management, NFJ Investment Group and Parametric Portfolio
            Associates, each of which is an affiliate of PIMCO Advisors, and
            Blairlogie Capital Management, which is not an affiliate. Pacific
            Investment Management Company is the sole investment adviser to
            each of the Underlying Bond Funds. For a complete description of
            the advisory and sub-advisory arrangements for the Underlying
            Funds, please see 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.

Underlying  The following provides a concise description of the investment
Stock       objective, main investments and other information about each
Funds       Underlying Stock Fund. 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>
                                                                                     Approximate
               PIMCO                Investment            Main                       Number of
               Fund                 Objective             Investments                Holdings
 ---------------------------------------------------------------------------------------------------
  <C>          <C>                  <C>                   <S>                        <C>
  Growth Stock Growth               Long-term growth of   Common stocks of           35-40
  Funds                             capital;              companies with market
                                    income is an          capitalizations of at
                                    incidental            least $5 billion
                                    consideration
               -------------------------------------------------------------------------------------
               Target               Capital appreciation; Common stocks of           40-60
                                    no                    companies with market
                                    consideration is      capitalizations of
                                    given to income       between $1 billion and
                                                          $10 billion
               -------------------------------------------------------------------------------------
               Opportunity          Capital appreciation; Common stocks of           60-100
                                    no                    companies with market
                                    consideration is      capitalizations of
                                    given to income       between $100 million and
                                                          $2 billion
 ---------------------------------------------------------------------------------------------------
  Blend Stock  Capital Appreciation Growth of capital     Common stocks of           60-100
  Funds                                                   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 of capital     Common stocks of           60-100
                                                          companies with market
                                                          capitalizations of more
                                                          than $500 million
                                                          (excluding the largest
                                                          200 companies) that have
                                                          improving fundamentals
                                                          and whose stock is
                                                          reasonably valued by the
                                                          market
               -------------------------------------------------------------------------------------
               Micro-Cap            Long-term growth of   Common stocks of           60-100
                                    capital               companies with market
                                                          capitalizations of less
                                                          than $250 million that
                                                          have improving
                                                          fundamentals and whose
                                                          stock is reasonably
                                                          valued by the market
</TABLE>

23 PIMCO Funds: Multi-Manager Series
<PAGE>

<TABLE>
<CAPTION>
                                                                                           Approximate
                 PIMCO                    Investment            Main                       Number of
                 Fund                     Objective             Investments                Holdings
 ---------------------------------------------------------------------------------------------------------
  <C>            <C>                      <C>                   <S>                        <C>
  Value Stock    Equity Income            Current income as a   Income-producing common      40-50
  Funds                                   primary objective;    stocks of companies with
                                          long-term growth of   market capitalizations
                                          capital is a          of more than $2 billion
                                          secondary objective
                 -----------------------------------------------------------------------------------------
                 Renaissance              Long-term growth of   Common stocks of             50-80
                                          capital and income    companies with below-
                                                                average valuations whose
                                                                business fundamentals
                                                                are expected to improve
                 -----------------------------------------------------------------------------------------
                 Value                    Long-term growth of   Common stocks of              40
                                          capital and income    companies with market
                                                                capitalizations of more
                                                                than $5 billion and
                                                                below average valuations
                                                                whose business
                                                                fundamentals are
                                                                expected to improve
                 -----------------------------------------------------------------------------------------
                 Small-Cap Value          Long-term growth of   Common stocks of              100
                                          capital and income    companies with market
                                                                capitalizations of
                                                                between $100 million and
                                                                $1.5 billion and below-
                                                                average price-to-
                                                                earnings ratios relative
                                                                to the market and their
                                                                industry groups
 ---------------------------------------------------------------------------------------------------------
  Enhanced Index Tax-Efficient Equity     Maximum after-tax     A broadly diversified      More than
  Stock Funds                             growth of capital     portfolio of at least         200
                                                                200 common stocks of
                                                                companies represented in
                                                                the S&P 500 Index with
                                                                market capitalizations
                                                                of more than $5 billion
                 -----------------------------------------------------------------------------------------
                 Enhanced Equity          A total return which  Common stocks               100-200
                                          equals or exceeds the represented in the S&P
                                          total return          500 Index with market
                                          performance of an     capitalizations of more
                                          index (currently the  than $5 billion
                                          S&P 500 Index) that
                                          represents the
                                          performance of a
                                          reasonably broad
                                          spectrum of common
                                          stocks that are
                                          publicly traded in
                                          the U.S.
                 -----------------------------------------------------------------------------------------
                 StocksPLUS               Total return that     S&P 500 stock index           N/A
                                          exceeds that of the   derivatives backed by a
                                          S&P 500 Index         portfolio of short-term
                                                                fixed income securities
 ---------------------------------------------------------------------------------------------------------
  International  International            Capital appreciation  Common stocks of foreign    200-250
  Stock Funds                             through investment in (non-U.S.) issuers
                                          an international      (developed and emerging
                                          portfolio; income is  markets) with market
                                          an incidental         capitalizations of more
                                          consideration         than $500 million
                 -----------------------------------------------------------------------------------------
                 Allianz Select           Capital appreciation  Common stocks of             30-60
                 International                                  companies located
                                                                outside of the United
                                                                States with market
                                                                capitalizations of more
                                                                than $1 billion
                 -----------------------------------------------------------------------------------------
                 Structured Emerging      Long-term growth of   Common stocks of           More than
                 Markets                  capital               companies located in, or      300
                                                                whose principal business
                                                                operations are based in,
                                                                emerging markets
                 -----------------------------------------------------------------------------------------
                 Tax-Efficient Structured Long-term growth of   Common stocks of           More than
                 Emerging Markets         capital. The Fund     companies located in, or      300
                                          also seeks to achieve whose principal business
                                          higher after-tax      operations are based in,
                                          returns for its       emerging markets
                                          shareholders by using
                                          a variety of tax-
                                          efficient management
                                          strategies
 ---------------------------------------------------------------------------------------------------------
  Sector-Related Innovation               Capital appreciation; Common stocks of              40
  Stock Funds                             no consideration is   technology-related
                                          given to income       companies with market
                                                                capitalizations of more
                                                                than $200 million
</TABLE>


                                                                   Prospectus 24
<PAGE>


Underlying  The investment objective of each Underlying Bond Fund (except as
Bond        provided below) is to seek to realize maximum total return,
Funds       consistent with preservation of capital and prudent investment
            management. The "total return" sought by most of the Underlying
            Bond Funds will consist of income earned on the Fund's
            investments, plus capital appreciation, if any, which generally
            arises from decreases in interest rates or improving credit
            fundamentals for a particular sector or security. 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 a measure of
            the change in purchasing power of money invested in a particular
            investment after adjusting 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 main
            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>
                                                                                                                   Non-U.S. Dollar
                                                                                                                   Denominated
                         PIMCO Fund        Main Investments           Duration          Credit Quality(/1/)        Securities(/2/)
             ---------------------------------------------------------------------------------------------------------------------
          <C>            <C>               <S>                        <C>                 <C>                     <C>
          Short          Money Market      Money market instruments   Equal to/less than  Min 95% Aaa or Prime 1; 0%
          Duration Bond                                               90 days dollar-     equal to/less than
          Funds                                                       weighted average    5% Aa or Prime 2
                                                                      maturity
                      ------------------------------------------------------------------------------------------
                         Short-Term        Money market instruments   0-1 yr           B to Aaa; max 10%       0-5%
                                           and                                         below Baa
                                           short maturity fixed
                                           income
                                           securities
                      ------------------------------------------------------------------------------------------
                         Low Duration      Short maturity fixed       1-3 yrs          B to Aaa; max 10%       0-20%
                                           income                                      below Baa
                                           securities
             --------------------------------------------------------------------------------------------------------
          Intermediate   Moderate Duration Short and intermediate     2-5 yrs          B to Aaa; max 10%       0-20%
          Duration                         maturity                                    below Baa
          Bond Funds                       fixed income securities
                      ------------------------------------------------------------------------------------------
                         Total Return      Intermediate maturity      3-6 yrs          B to Aaa; max 10%       0-20%
                                           fixed                                       below Baa
                                           income securities
                      ------------------------------------------------------------------------------------------
                         Total Return II   Intermediate maturity      3-6 yrs          Baa to Aaa              0%
                                           fixed
                                           income securities with
                                           quality
                                           and non-U.S. issuer
                                           restrictions
             --------------------------------------------------------------------------------------------------------
          Long Duration  Long-Term U.S.    Long-term maturity fixed   Greater than/    A to Aaa                0%
          Bond Funds     Government        income                     equal to
                                           securities                 8 yrs.
             --------------------------------------------------------------------------------------------------------
          International  Global Bond       U.S. and non-U.S.          3-7 yrs          B to Aaa; max 10%       25-75%
          Bond Funds                       intermediate                                below Baa
                                           maturity fixed income
                                           securities
                      ------------------------------------------------------------------------------------------
                         Foreign Bond      Intermediate maturity      3-7 yrs          B to Aaa; max 10%       Greater than/
                                           hedged                                      below Baa               equal to 85%
                                           non-U.S. fixed income
                                           securities
                      ------------------------------------------------------------------------------------------
                         Emerging Markets  Emerging market fixed      0-8 yrs          B to Aaa                Greater than/
                         Bond              income                                                              equal to 80%
                                           securities
             --------------------------------------------------------------------------------------------------------
          High Yield     High Yield        Higher yielding fixed      2-6 yrs          B to Aaa; min 65%       0-15%
          Bond Funds                       income                                      below Baa
                                           securities
             --------------------------------------------------------------------------------------------------------
          Inflation      Real Return Bond  Inflation-indexed fixed    N/A              B to Aaa; max 10%       0-20%
          Indexed Bond                     income                                      below Baa
          Funds                            securities
</TABLE>
            1. As rated by Moody's Investors Service, Inc., or equivalently
             rated by Standard & Poor's Ratings Services, or if unrated, de-
             termined by Pacific Investment Management Company to be of compa-
             rable quality.
            2. Percentage limitations relate to non-U.S. dollar-denominated
             securities for all Underlying Bond Funds except PIMCO Global
             Bond, Foreign Bond and Emerging Markets Bond Funds. Percentage
             limitations for these three Funds relate to securities of non-
             U.S. issuers, denominated in any currency. For the PIMCO High
             Yield Fund, the percentage limitation relates to euro-denominated
             securities. Each Underlying 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 non-U.S. issuers.

              Each Underlying Bond Fund invests 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, event-linked 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 other government-sponsored enterprises;
            obligations of non-U.S. governments or their subdivisions,
            agencies and government-sponsored enterprises; and obligations of
            international agencies or supranational entities.

25 PIMCO Funds: Multi-Manager Series
<PAGE>

Other       In addition to purchasing the securities listed above under "Main
Investment  Investments," some or all of the Underlying Funds may to varying
Practices   extents: lend portfolio securities; enter into repurchase
of the      agreements and reverse repurchase agreements; purchase and sell
Underlying  securities on a when-issued or delayed delivery basis; enter into
Funds       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.

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.

            Other Risk Information

Potential   PIMCO Advisors has broad discretion to allocate and reallocate the
Conflicts   Portfolios' assets among the Underlying Funds consistent with the
of          Portfolios' investment objectives and policies and asset
Interest    allocation targets and ranges. 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 of the Trust.

            Management of the Portfolios

Investment
Adviser
and
Administrator
            PIMCO Advisors serves as the investment adviser and the
            administrator (serving in its capacity as administrator, the
            "Administrator") for the Portfolios. Subject to the supervision of
            the Board of Trustees, PIMCO Advisors is responsible for managing,
            either directly or through others selected by it, the investment
            activities of the Portfolios and the Portfolios' business affairs
            and other administrative matters.

              PIMCO Advisors is located at 800 Newport Center Drive, Newport
            Beach, California 92660. Organized in 1987, PIMCO Advisors
            provides investment management and advisory services to private
            accounts of institutional and individual clients and to mutual
            funds. As of September 30, 2000, PIMCO Advisors and its subsidiary
            partnerships had approximately $272 billion in assets under
            management.

              PIMCO Advisors has retained its affiliate, Pacific Investment
            Management Company, to provide various administrative and other
            services required by the Portfolios in its capacity as sub-
            administrator. PIMCO Advisors and the sub-administrator may retain
            other affiliates to provide certain of these services.

                                                                 Prospectus   26
<PAGE>

Asset       PIMCO Advisors selects the Underlying Funds in which the
Allocation  Portfolios may invest. PIMCO Advisors' Asset Allocation Committee
Committee   is responsible for determining how the Portfolios' assets are
            allocated and reallocated from time-to-time among the Underlying
            Funds selected by PIMCO Advisors. The following provides
            information about the individuals who comprise the Asset
            Allocation Committee and are primarily responsible for making
            asset allocation and other investment decisions for the
            Portfolios.

<TABLE>
<CAPTION>
          Asset Allocation
          Committee Member   Since     Recent Professional Experience
            ----------------------------------------------------------------------------------------------
          <C>                <C>       <S>
          Udo Frank          May, 2000 Managing Director and Chief Investment Officer of Allianz Asset
                                       Advisory and Management GmbH, responsible for the entire investment
                                       area (since 1997), and Chief Executive Officer and Chief Investment
                                       Officer of Allianz PIMCO Asset Management. Previously, he served as
                                       the Chief Investment Officer of Allianz KAG since 1994.
          Kenneth W. Corba   May, 2000 Managing Director and Chief Investment Officer of the PIMCO Equity
                                       Advisors division of PIMCO Advisors and a Member of the Management
                                       Board of PIMCO Advisors. Prior to joining PIMCO Advisors, he was
                                       with Eagle Asset Management from 1995 to 1998, serving in various
                                       capacities including as Chief Investment Officer and Portfolio
                                       Manager. He was with Stein Roe & Farnham Inc. from 1984 to 1995,
                                       serving in various capacities including as Director of the Capital
                                       Management Group, Senior Vice President and Portfolio Manager.
          Colin Glinsman     May, 2000 Chief Investment Officer of Oppenheimer Capital since 1999.
                                       Previously, he served as a portfolio manager and research analyst
                                       at Oppenheimer Capital from 1989 to 1999.
          John Hague         May, 2000 Managing Director of Pacific Investment Management Company LLC,
                                       where he is a member of the Executive Committee and a senior member
                                       of the Portfolio Management and Investment Strategy Groups. He
                                       joined Pacific Investment Management Company LLC in 1987.
          John Loftus        May, 2000 Managing Director of Pacific Investment Management Company LLC,
                                       where he is a senior member of its Investment Strategy Group. He
                                       also heads the firm's product management area. He joined Pacific
                                       Investment Management Company LLC in 1986.
</TABLE>

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 their proportionate share
            of the advisory fees paid to PIMCO Advisors and Pacific Investment
            Management Company by the Underlying Funds in which the Portfolios
            invest. See "Underlying Fund Expenses" below.

Administrative
Fees
            Institutional Class and Administrative Class shareholders of each
            Portfolio pay an administrative fee to PIMCO Advisors, computed as
            a percentage of the Portfolio's assets attributable in the
            aggregate to those classes of shares. PIMCO Advisors, in turn,
            provides or procures administrative services for Institutional
            Class and Administrative Class shareholders and also bears the
            costs of most third-party services required by the Portfolios,
            including audit, custodial, portfolio accounting, legal, transfer
            agency and printing costs. The Portfolios do bear other expenses
            which are not covered under the administrative fee which may vary
            and affect the total level of expenses paid by Institutional Class
            and Administrative Class shareholders, such as brokerage fees,
            commissions and other transaction expenses, costs of borrowing
            money, including interest expenses, and fees and expenses of the
            Trust's disinterested Trustees.

              Each Portfolio pays monthly administrative fees to PIMCO
            Advisors at an annual rate of 0.15% based on the average daily net
            assets attributable in the aggregate to the Portfolio's
            Institutional Class and Administrative Class shares. In order to
            reduce expenses, PIMCO Advisors has voluntarily undertaken to
            waive a portion of the administrative fees it is entitled to
            receive for Institutional Class and Administrative Class shares of
            each Portfolio until further notice. As a result, while the waiver
            is in effect, each Portfolio will pay administrative fees to PIMCO
            Advisors at the annual rate of 0.10%, calculated in the manner
            specified above. The Portfolios also indirectly pay their
            proportionate share of the administrative fees charged by PIMCO
            Advisors and Pacific Investment Management Company to the
            Underlying Funds in which the Portfolios invest. See "Underlying
            Fund Expenses" below.

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.

27 PIMCO Funds: Multi-Manager Series
<PAGE>

              The Portfolios are structured in the following ways to lessen
            the impact of expenses incurred at the Underlying Fund level:

              .  The Portfolios do not pay any fees for asset allocation or
                 advisory services under the Trust's investment advisory
                 agreement.

              .  The Underlying Funds invest in Institutional Class shares of
                 the Underlying Funds, which are not subject to any sales
                 charges or 12b-1 fees.

              The following table summarizes the annual expenses borne by
            Institutional Class shareholders of the Underlying Funds (based on
            estimates for the current fiscal year). Because the Portfolios
            invest in 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
            "Fees and Expenses of the Portfolio" in each Portfolio Summary
            above.

<TABLE>
<CAPTION>
                                    Annual Underlying Fund Expenses
                                    (Based on the average daily net assets
                                    attributable to a Fund's Institutional Class
                                    shares):
                                    Advisory Admini-       Other    Total Fund
           Underlying Fund          Fees     strative Fees Expenses Operating Expenses
               -----------------------------------------------------------------------
           <S>                      <C>      <C>           <C>      <C>
           PIMCO Growth             0.50%    0.25%         0.02%    0.77%
               -----------------------------------------------------------------------
           PIMCO Target             0.55     0.25          0.01     0.81
               -----------------------------------------------------------------------
           PIMCO Opportunity        0.65     0.25          0.01     0.91
               -----------------------------------------------------------------------
           PIMCO Capital
            Appreciation            0.45     0.25          0.01     0.71
               -----------------------------------------------------------------------
           PIMCO Mid-Cap            0.45     0.25          0.01     0.71
               -----------------------------------------------------------------------
           PIMCO Micro-Cap          1.25     0.25          0.01     1.51
               -----------------------------------------------------------------------
           PIMCO Equity Income      0.45     0.25          0.02     0.72
               -----------------------------------------------------------------------
           PIMCO Renaissance        0.60     0.25          0.00     0.85
               -----------------------------------------------------------------------
           PIMCO Value              0.45     0.25          0.00     0.70
               -----------------------------------------------------------------------
           PIMCO Small-Cap Value    0.60     0.25          0.01     0.86
               -----------------------------------------------------------------------
           PIMCO Tax-Efficient
            Equity                  0.45     0.25          0.01     0.71
               -----------------------------------------------------------------------
           PIMCO Enhanced Equity    0.45     0.25          0.01     0.71
               -----------------------------------------------------------------------
           PIMCO StocksPLUS         0.40     0.25          0.00     0.65
               -----------------------------------------------------------------------
           PIMCO International      0.55     0.50          0.08     1.13
               -----------------------------------------------------------------------
           PIMCO Allianz Select
            International           0.75     0.50          0.00     1.25
               -----------------------------------------------------------------------
           PIMCO Structured
            Emerging Markets        0.45     0.50          0.29     1.24
               -----------------------------------------------------------------------
           PIMCO Tax-Efficient
            Structured Emerging
            Markets                 0.45     0.50          0.05     1.00
               -----------------------------------------------------------------------
           PIMCO Innovation         0.65     0.25          0.00     0.90
               -----------------------------------------------------------------------
           PIMCO Money Market       0.15     0.20          0.00     0.35
               -----------------------------------------------------------------------
           PIMCO Short-Term         0.25     0.20          0.19     0.64
               -----------------------------------------------------------------------
           PIMCO Low Duration       0.25     0.18          0.08     0.51
               -----------------------------------------------------------------------
           PIMCO Moderate Duration  0.25     0.20          0.02     0.47
               -----------------------------------------------------------------------
           PIMCO Total Return       0.25     0.18          0.11     0.54
               -----------------------------------------------------------------------
           PIMCO Total Return II    0.25     0.25          0.00     0.50
               -----------------------------------------------------------------------
           PIMCO Long-Term U.S.
            Government              0.25     0.25          0.07     0.57
               -----------------------------------------------------------------------
           PIMCO Global Bond        0.25     0.30          0.16     0.71
               -----------------------------------------------------------------------
           PIMCO Foreign Bond       0.25     0.25          0.19     0.69
               -----------------------------------------------------------------------
           PIMCO Emerging Markets
            Bond                    0.45     0.40          0.04     0.89
               -----------------------------------------------------------------------
           PIMCO High Yield         0.25     0.25          0.00     0.50
               -----------------------------------------------------------------------
           PIMCO Real Return Bond   0.25     0.25          0.03     0.53
</TABLE>

Distributor
            The Trust's Distributor is PIMCO Funds Distributors LLC, a wholly
            owned subsidiary of PIMCO Advisors. The Distributor, located at
            2187 Atlantic Street, Stamford, CT 06902, is a broker-dealer
            registered with the Securities and Exchange Commission.

                                                                   Prospectus 28
<PAGE>

            Investment Options --
            Institutional Class and Administrative Class Shares

            The Trust offers investors Institutional Class and Administrative
            Class shares of the Portfolios in this Prospectus.

             The Trust does not charge any sales charges (loads) or other fees
            in connection with purchases, sales (redemptions) or exchanges of
            Institutional Class or Administrative Class shares. Administrative
            Class shares are generally subject to a higher level of operating
            expenses than Institutional Class shares due to the additional
            service and/or distribution fees paid by Administrative Class
            shares as described below. Therefore, Institutional Class shares
            will generally pay higher dividends and have a more favorable
            investment return than Administrative Class shares.

              . Service and Distribution (12b-1) Fees--Administrative Class
            Shares. The Trust has adopted an Administrative Services Plan and
            a Distribution Plan for the Administrative Class shares of each
            Portfolio. Each Plan has been adopted in accordance with the
            requirements of Rule 12b-1 under the Investment Company Act of
            1940 and is administered in accordance with that rule. However,
            shareholders do not have the voting rights set forth in Rule 12b-1
            with respect to the Administrative Services Plan.

             Each Plan allows the Portfolios to use their Administrative Class
            assets to reimburse financial intermediaries that provide services
            relating to Administrative Class shares. The Distribution Plan
            permits reimbursement for expenses in connection with the
            distribution and marketing of Administrative Class shares and/or
            the provision of shareholder services to Administrative Class
            shareholders. The Administrative Services Plan permits
            reimbursement for services in connection with the administration
            of plans or programs that use Administrative Class shares of the
            Portfolios as their funding medium and for related expenses.

             In combination, the Plans permit a Portfolio to make total
            reimbursements at an annual rate of up to 0.25% of the Portfolio's
            average daily net assets attributable to its Administrative Class
            shares. The same entity may not receive both distribution and
            administrative services fees with respect to the same
            Administrative Class assets, but may receive fees under each Plan
            with respect to separate assets. Because these fees are paid out
            of a Portfolio's Administrative Class assets on an ongoing basis,
            over time they will increase the cost of an investment in
            Administrative Class shares and may cost an investor more than
            other types of sales charges.

              . Arrangements with Service Agents. Institutional Class and
            Administrative Class shares of the Portfolios may 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
            and/or distribution fees paid with respect to Administrative Class
            shares. Service agents may impose additional or different
            conditions than the Trust on purchases, redemptions or exchanges
            of Portfolio shares by their customers. Service agents may also
            independently establish and charge their customers transaction
            fees, account fees and other amounts in connection with purchases,
            sales and redemptions of Portfolio shares in addition to any fees
            charged by the Trust. These additional fees may vary over time and
            would increase the cost of the customer's investment and lower
            investment returns. 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, redemptions and exchanges. Shareholders who
            are customers of service agents should consult their service
            agents for information regarding these fees and conditions.


29 PIMCO Funds: Multi-Manager Series
<PAGE>

            Purchases, Redemptions and Exchanges

            Investors may purchase Institutional Class and Administrative
Purchasing  Class shares of the Portfolios at the relevant net asset value
Shares      ("NAV") of that class without a sales charge or other fee.

             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 their
            customers' investments in the Portfolios.

             Administrative Class shares are offered primarily through
            employee benefit plan alliances, broker-dealers and other
            intermediaries, and each Portfolio pays service and/or
            distribution fees to these entities for services they provide to
            Administrative Class shareholders.

             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.

              . Investment Minimums. 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. At the discretion of PIMCO
            Advisors, the minimum initial investment may be waived for
            Institutional or Administrative Class shares offered to clients of
            PIMCO Equity Advisors, PIMCO/Allianz International Advisors,
            Cadence, NFJ, Pacific Investment Management Company, 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 Institutional Class shares offered through fee-
            based programs sponsored and maintained by a registered broker-
            dealer and approved by the Distributor in which each investor pays
            an asset based fee at an annual rate of at least 0.50% of the
            assets in the account to a financial intermediary for investment
            advisory and/or administrative services.

             The Trust and the Distributor may waive the minimum initial
            investment for other categories of investors at their discretion.

             The investment minimums discussed in this section do not apply to
            participants in PIMCO Advisors Portfolio Strategies, a managed
            product sponsored by PIMCO Advisors.

              . Timing of Purchase Orders and Share Price Calculations. A
            purchase order received by the Trust's transfer agent, National
            Financial Data Services (the "Transfer Agent"), prior to the close
            of regular trading (normally 4:00 p.m., Eastern time) on the New
            York Stock Exchange, on a day the Trust is open for business,
            together with payment made in one of the ways described below,
            will be effected at that day's net asset value ("NAV"). An order
            received after the close of regular trading on the New York Stock
            Exchange will be effected at the NAV 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 New York Stock 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 NAV
            determined on the prior business day. The Trust is "open for
            business" on each day the New York Stock 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.

              . Initial Investment. Investors may open an account by
            completing and signing a Client Registration Application and
            mailing it to PIMCO Funds at 840 Newport Center Drive, Suite 300,
            Newport Beach, California 92660. A Client Registration Application
            may be obtained by calling 1-800-927-4648.

             Except as described below, an investor may purchase Institutional
            Class and Administrative Class shares only by wiring federal funds
            to the Transfer Agent, National Financial Data Services, 330 West
            9th Street, 4th Floor, Kansas City, Missouri 64105. Before wiring
            federal funds, the investor must telephone the Trust at 1-800-927-
            4648 to receive instructions for wire transfer and must provide
            the following information: name of authorized person, shareholder
            name, shareholder account number, name of Portfolio and share
            class, amount being wired, and wiring bank name.

                                                                   Prospectus 30
<PAGE>

             An investor may purchase shares without first wiring federal
            funds if the proceeds of the investment are derived from an
            advisory account the investor maintains 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 LLC, 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.

              . Additional Investments. An investor may purchase additional
            Institutional Class and Administrative Class shares of the
            Portfolios at any time 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.

             An investor should invest in the Portfolios for long-term
            investment purposes only. The Trust and PIMCO Advisors 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. Notice of any such restrictions, if any, will
            vary according to the particular circumstances.

             Institutional Class and Administrative Class shares of the Trust
            may not be qualified or registered for sale in all states.
            Investors should inquire as to whether shares of a particular
            Portfolio are available for offer and sale in the investor's 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.


Redeeming     . Redemptions by Mail. An investor may redeem (sell)
Shares      Institutional Class and Administrative Class shares by submitting
            a written request to PIMCO Funds at 840 Newport Center Drive,
            Suite 300, Newport Beach, California 92660. The redemption request
            should state 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. An
            investor that elects this option on the Client Registration
            Application (or subsequently in writing) may request redemptions
            of shares by calling the Trust at 1-800-927-4648, by sending a
            facsimile to 1-949-725-6830, by sending an e-mail to
            [email protected], 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, the account number and the signature
            (which may be an electronic signature) of an authorized signatory.
            Redemption requests of an amount of $10 million or more may be
            initiated by telephone, wire or e-mail, but must be confirmed in
            writing by an authorized party prior to processing.

             In electing a telephone redemption, the investor authorizes
            Pacific Investment Management Company 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 Company or the Transfer Agent to be genuine. Neither
            the Trust nor the Transfer Agent may be liable for any loss, cost
            or expense for acting on

31 PIMCO Funds: Multi-Manager Series
<PAGE>

            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, wire or e-mail
            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 service may mean that a
            shareholder will be unable to effect a redemption by telephone or
            e-mail 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 or via e-mail). All telephone transactions are
            recorded, and Pacific Investment Management Company or the
            Transfer Agent may request certain information in order to verify
            that the person giving instructions is authorized to do so. The
            Trust or Transfer Agent may be liable for any losses due to
            unauthorized or fraudulent telephone transactions if it fails to
            employ reasonable procedures to confirm that instructions
            communicated by telephone are genuine. 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 "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.

              . Timing of Redemption Requests and Share Price Calculations. A
            redemption request received by the Trust or its designee prior to
            the close of regular trading on the New York Stock 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.
            Redemption requests for Portfolio shares are effected at the NAV
            per share next determined after receipt of a redemption request by
            the Trust or its designee. The request must properly identify all
            relevant information, such as account number, redemption amount
            (in dollars or shares) and the Portfolio name, and must be
            executed or initialed by the appropriate signatories.

              . Other Redemption Information. Redemption proceeds 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 New York Stock 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 Portfolio 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. When
            shares are redeemed in kind, the redeeming shareholder may incur
            transaction costs upon the disposition of the securities received
            in the distribution.

                                                                   Prospectus 32
<PAGE>

             Redemption of Portfolio shares may be suspended when trading on
            the New York Stock Exchange is restricted or during an emergency
            which makes it impracticable for the Portfolios or the Underlying
            Funds to dispose of their securities or to determine fairly the
            value of their net assets, or duing any other period as permitted
            by the Securities and Exchange Commission for the protection of
            investors. Under these and other unusual circumstances, the Trust
            may suspend redemptions or postpone payment for more than seven
            days, as permitted by law.


Exchange    An investor may exchange Institutional Class or Administrative
Privilege   Class shares of a Portfolio for shares of the same class of any
            other Portfolio or other series of the Trust that offers that
            class based on the respective NAVs of the shares involved, subject
            to any restrictions on exchanges set forth in the applicable
            Fund's or series' prospectus(es). An exchange may be made by
            following the redemption procedure described above under
            "Redemptions by Mail" or, if the investor has elected the
            telephone redemption option, by calling the Trust at 1-800-927-
            4648. An investor may also exchange shares of a Portfolio 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 Company. 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.

             An investor may exchange shares only with respect to Portfolios
            or other eligible series that are registered in the investor's
            state of residence or where an exemption from registration is
            available. In addition, an exchange is generally a taxable event
            which will generate capital gains or losses, and special rules may
            apply in computing tax basis when determining gain or loss. See
            "Tax Consequences" in this Prospectus and "Taxation" in the
            Statement of Additional Information.

             The Trust reserves the right to refuse exchange purchases if, in
            the judgment of PIMCO Advisors, 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 PIMCO Advisors to be detrimental to the Trust or a
            particular Portfolio. Currently, the Trust limits the number of
            "round trip" exchanges investors 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. The Trust reserves the right to impose
            additional restrictions on exchanges at any time, although it will
            attempt to give shareholders 30 days' prior notice whenever it is
            reasonably able to do so.

            How Portfolio Shares Are Priced

            The net asset value ("NAV") of a Portfolio's Institutional Class
            and Administrative Class shares is determined by dividing the
            total value of a Portfolio's investments and other assets
            attributable to that class, less any liabilities, by the total
            number of shares outstanding of that class.

             The assets of each Portfolio consist of shares of the Underlying
            Funds, which are valued at their respective NAVs at the time of
            valuation of the Portfolios' shares. For purposes of calculating
            the NAV of Underlying Fund shares, portfolio securities and other
            assets of the Funds for which market quotes are available are
            stated at market value. Market value is generally determined on
            the basis of last reported sales prices, or if no sales are
            reported, based on quotes obtained from a quotation reporting
            system, established market makers, or pricing services. Certain
            securities or investments for which daily market quotes are not
            readily available may be valued, pursuant to procedures
            established by the Board of Trustees of the Underlying Fund, with
            reference to other securities or indices. Short-term investments
            having a maturity of 60 days or less are generally valued at
            amortized cost. Exchange traded options, futures and options on
            futures are valued at the settlement price determined by the
            exchange. Other securities for which market quotes are not readily
            available are valued at fair value as determined in good faith by
            the Fund's Board of Trustees or persons acting at the Board's
            direction.

             Underlying Fund investments initially valued in currencies other
            than the U.S. dollar are converted to U.S. dollars using exchange
            rates obtained from pricing services. As a result, the NAV of an
            Underlying Fund's shares may be affected by changes in the value
            of currencies in relation to the U.S. dollar. The value of
            securities traded in markets outside the United States or
            denominated in currencies other than the U.S. dollar

33 PIMCO Funds: Multi-Manager Series
<PAGE>

            may be affected significantly on a day that the New York Stock
            Exchange is closed. As a result, to the extent that a Portfolio
            invests in Underlying Funds that hold foreign securities, the NAV
            of the Portfolio's shares may change at times when you can not
            purchase, redeem or exchange shares.

             Portfolio and Underlying Fund shares are valued at the close of
            regular trading (normally 4:00 p.m., Eastern time) (the "NYSE
            Close") on each day that the New York Stock Exchange is open. For
            purposes of calculating the NAV, the Underlying Funds normally use
            pricing data for domestic equity securities received shortly after
            the NYSE Close and do not normally take into account trading,
            clearances or settlements that take place after the NYSE Close.
            Domestic fixed income and foreign securities are normally priced
            using data reflecting the earlier closing of the principal markets
            for those securities. Information that becomes known to the
            Underlying Funds or their agents after the NAV has been calculated
            on a particular day will not generally be used to retroactively
            adjust the price of a security or the NAV determined earlier that
            day.

             In unusual circumstances, instead of valuing securities in the
            usual manner, the Underlying Funds may value securities at fair
            value or estimate their value as determined in good faith by the
            Fund's Board of Trustees or persons acting at their direction
            pursuant to procedures approved by the Board of Trustees. Fair
            valuation may also be used by the Underlying Fund's Board of
            Trustees if extraordinary events occur after the close of the
            relevant market but prior to the NYSE Close.

            Portfolio Distributions

            Each Portfolio distributes substantially all of its net investment
            income to shareholders in the form of dividends. A shareholder
            begins earning dividends on Portfolio shares the day after the
            Trust receives the shareholder's purchase payment. 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 Administrative Class shares are expected to be lower than
            dividends on Institutional Class shares as a result of the service
            and/or distribution fees applicable to Administrative Class
            shares. The following shows when each Portfolio intends to declare
            and distribute income dividends to shareholders of record.

<TABLE>
<CAPTION>
          Portfolio             At Least Annually           Quarterly           Monthly
            ---------------------------------------------------------------------------
         <S>                    <C>                         <C>                 <C>
          90/10 Portfolio               .
            ---------------------------------------------------------------------------
          60/40 Portfolio                                       .
            ---------------------------------------------------------------------------
          30/70 Portfolio                                                          .
            ---------------------------------------------------------------------------
</TABLE>

             In addition, each Portfolio distributes any net capital gains it
            earns from the sale of portfolio securities to shareholders no
            less frequently than annually. Net short-term capital gains may be
            paid more frequently.

             A Portfolio's dividend and capital gain distributions with
            respect to a particular class of shares will automatically be
            reinvested in additional shares of the same class of the Portfolio
            at NAV unless the shareholder elects to have the distributions
            paid in cash. A shareholder may elect to have distributions paid
            in cash on the Client Registration Application or by submitting a
            written request, signed by the appropriate signatories, indicating
            the account number, Portfolio name(s) and wiring instructions.
            Shareholders do not pay any sales charges or other fees on the
            receipt of shares received through the reinvestment of Portfolio
            distributions.

             For further information on distribution options, please contact
            the Trust at 1-800-927-4648.

            Tax Consequences

             . Taxes on Portfolio Distributions. A shareholder subject to U.S.
            federal income tax will be subject to tax on Portfolio
            distributions whether they are paid in cash or reinvested in
            additional shares of the Portfolios. For federal income tax
            purposes, Portfolio distributions will be taxable to the
            shareholder as either ordinary income or capital gains.

             Portfolio dividends (i.e., distributions of investment income)
            are taxable to shareholders as ordinary income. Federal taxes on
            Portfolio distributions of gains are determined by how long the
            Portfolio owned the investments that generated the gains, rather
            than how long the shareholder owned the shares. Distributions of
            gains from investments that a Portfolio owned for more than 12
            months will generally be taxable to shareholders as capital gains.
            Distributions of gains from investments that the Portfolio owned
            for 12 months or less will generally be taxable as ordinary
            income.

                                                                   Prospectus 34
<PAGE>


             Portfolio distributions are taxable to shareholders even if they
            are paid from income or gains earned by a Portfolio prior to the
            shareholder's investment and thus were included in the price paid
            for the shares. For example, a shareholder who purchases shares on
            or just before the record date of a Portfolio distribution will
            pay full price for the shares and may receive a portion of his or
            her investment back as a taxable distribution.

             The Portfolios' use of a fund of funds structure could affect the
            amount, timing and character of distributions to shareholders. See
            "Taxation--Distributions" in the Statement of Additional
            Information.

             . Taxes on Redemptions or Exchanges of Shares. Any gain resulting
            from the sale of Portfolio shares will generally be subject to
            federal income tax. When a shareholder exchanges shares of a
            Portfolio for shares of another Portfolio or series of the Trust,
            the transaction will be treated as a sale of the first Portfolio's
            shares for these purposes, and any gain on those shares will
            generally be subject to federal income tax.

             This section relates only to federal income tax; the consequences
            under other tax laws may differ. Shareholders should consult their
            tax advisors as to the possible application of foreign, state and
            local income tax laws to Portfolio dividends and capital
            distributions. Please see the Statement of Additional Information
            for additional information regarding the tax aspects of investing
            in the Portfolios.


35 PIMCO Funds: Multi-Manager Series
<PAGE>





                      (This page left blank intentionally)

                                                                   Prospectus 36
<PAGE>

            Financial Highlights

            The financial highlights table is intended to help you understand
            the financial performance of Institutional Class and
            Administrative Class shares of each Portfolio since the class of
            shares was first offered. Certain information reflects financial
            results for a single Portfolio share. The total returns in the
            table represent the rate that an investor would have earned or
            lost on an investment in a particular class of shares of a
            Portfolio, assuming reinvestment of all dividends and
            distributions. This information has been audited by
            PricewaterhouseCoopers LLP, whose report, along with each
            Portfolio's financial statements, are included in the Trust's
            annual report to shareholders. The annual report is incorporated
            by reference in the Statement of Additional Information and is
            available free of charge upon request from the Distributor.


<TABLE>
<CAPTION>
                 Net Asset             Net Realized/     Total    Dividends  Distributions
    Year or        Value      Net        Unrealized   Income from  from Net    from Net
    Period       Beginning Investment  Gain (Loss) on Investment  Investment   Realized
     Ended       of Period   Income     Investments   Operations    Income   Capital Gains
------------------------------------------------------------------------------------------
<S>              <C>       <C>         <C>            <C>         <C>        <C>
90/10 Portfolio
 Institutional
  Class
  06/30/00        $12.19     $0.59(a)      $0.86(a)      $1.45      $(0.19)     $(0.59)
  06/30/99 (b)     10.91      0.05(a)       1.23(a)       1.28        0.00        0.00
 Administrative
  Class
  06/30/00         12.18      0.56(a)       0.85(a)       1.41       (0.17)      (0.59)
  06/30/99 (b)     10.91      0.04(a)       1.23(a)       1.27        0.00        0.00
60/40 Portfolio
 Institutional
  Class
  06/30/00        $11.27     $0.63(a)      $0.45(a)      $1.08      $(0.41)     $(0.44)
  06/30/99 (b)     10.55      0.09(a)       0.73(a)       0.82       (0.10)       0.00
 Administrative
  Class
  06/30/00         11.27      0.60(a)       0.45(a)       1.05       (0.38)      (0.44)
  06/30/99 (b)     10.55      0.09(a)       0.72(a)       0.81       (0.09)       0.00
30/70 Portfolio
 Institutional
  Class
  06/30/00        $10.33     $0.64(a)      $0.11(a)      $0.75      $(0.53)     $(0.19)
  06/30/99 (b)     10.09      0.15(a)       0.23(a)       0.38       (0.14)       0.00
 Administrative
  Class
  06/30/00         10.33      0.61(a)       0.11(a)       0.72       (0.50)      (0.19)
  06/30/99 (b)     10.09      0.14(a)       0.23(a)       0.37       (0.13)       0.00
</TABLE>

-------
 *Annualized
 (a)Per share amounts based on average number of shares outstanding during the
    period.
 (b) Commenced operations on February 26, 1999.

37 PIMCO Funds: Multi-Manager Series
<PAGE>




<TABLE>
<CAPTION>
                                                                          Ratio of Net
                                                               Ratio of    Investment
Tax Basis                Net Asset               Net Assets   Expenses to Income (Loss)
Return of      Total     Value End                 End of     Average Net  to Average     Portfolio
 Capital   Distributions of Period Total Return Period (000s)   Assets     Net Assets   Turnover Rate
-----------------------------------------------------------------------------------------------------
<S>        <C>           <C>       <C>          <C>           <C>         <C>           <C>
  $0.00       $(0.78)     $12.86      12.20%         $13         0.10%        4.71%           18%
   0.00         0.00       12.19      11.73           11         0.10*        1.17*           48
   0.00        (0.76)      12.83      11.91           12         0.35         4.46            18
   0.00         0.00       12.18      11.64           11         0.35*        0.95*           48
  $0.00       $(0.85)     $11.50       9.90%         $57         0.10%        5.51%           44%
   0.00        (0.10)      11.27       7.80           11         0.10*        2.52 *          39
   0.00        (0.82)      11.50       9.63           12         0.35         5.26            44
   0.00        (0.09)      11.27       7.71           11         0.35*        2.44*           39
  $0.00       $(0.72)     $10.36       7.47%         $11         0.10%        6.19%           52%
   0.00        (0.14)      10.33       3.78           10         0.10*        4.20*           37
   0.00        (0.69)      10.36       7.21           11         0.35         5.95            52
   0.00        (0.13)      10.33       3.70           10         0.35*        4.03*           37
</TABLE>
                                                                   Prospectus
                                                                              38
<PAGE>





                      (This page left blank intentionally)
<PAGE>





                      (This page left blank intentionally)
<PAGE>





                      (This page left blank intentionally)
<PAGE>

            -------------------------------------------------------------------
PIMCO       INVESTMENT ADVISER AND ADMINISTRATOR
Funds:      PIMCO Advisors L.P., 800 Newport Center Drive, Newport Beach, CA
Multi-      92660
Manager
Series

            -------------------------------------------------------------------
            CUSTODIAN
            State Street Bank & Trust Co., 801 Pennsylvania, Kansas City, MO
            64105

            -------------------------------------------------------------------
            TRANSFER AGENT
            National Financial Data Services, 330 W. 9th Street, 4th Floor,
            Kansas City, MO 64105

            -------------------------------------------------------------------
            INDEPENDENT ACCOUNTANTS
            PricewaterhouseCoopers LLP, 1055 Broadway, Kansas City, MO 64105

            -------------------------------------------------------------------
            LEGAL COUNSEL
            Ropes & Gray, One International Place, Boston, MA 02110

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

                                                     Not part of the Prospectus
<PAGE>

The Trust's Statement of Additional Information ("SAI") and annual and
semi-annual reports to shareholders include additional information about the
Funds. The SAI and the financial statements included in the Funds' most recent
annual report to shareholders are incorporated by reference into this
Prospectus, which means they are part of this Prospectus for legal purposes.
The Funds' annual report discusses the market conditions and investment
strategies that significantly affected each Fund's performance during its last
fiscal year.

You may get free copies of any of these materials, request other information
about a Fund, or make shareholder inquiries by calling the Trust at
1-800-927-4648 or PIMCO Infolink Audio Response Network at 1-800-987-4626, or by
writing to:

PIMCO Funds:
Multi-Manager Series
840 Newport Center Drive
Suite 300
Newport Beach, CA 92660

You may review and copy information about the Trust, including its SAI, at the
Securities and Exchange Commission's public reference room in Washington, D.C.
You may call the Commission at 1-202-942-8090 for information about the
operation of the public reference room. You may also access reports and other
information about the Trust on the Commission's Web site at www.sec.gov. You may
get copies of this information, with payment of a duplication fee, by writing
the Public Reference Section of the Commission, Washington, D.C. 20549-6009, or
by e-mailing your request to [email protected]. Reference the Trust's
Investment Company Act file number in your correspondence.

Investment Company Act File No. 811-6161

[PIMCO Logo appears here]

PIMCO Funds
849 Newport Center Drive
Suite 300
Newport Beach, CA 92660

PY000.11/00
<PAGE>

NOVEMBER 1, 2000

                    PIMCO FUNDS PROSPECTUS


Share Classes       PIMCO Funds Asset Allocation Series consists of three
A     B     C       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.


                    90/10 Portfolio
                    60/40 Portfolio
                    30/70 Portfolio

This cover is not part of the Prospectus.                  [LOGO OF PIMCO FUNDS]

<PAGE>

            PIMCO Funds Prospectus

PIMCO       This Prospectus describes three actively managed mutual fund
Funds:      Portfolios offered by PIMCO Funds: Multi-Manager Series.
Multi-
Manager
Series


                 Asset Allocation Series -- 90/10 Portfolio


                 Asset Allocation Series -- 60/40 Portfolio

November         Asset Allocation Series -- 30/70 Portfolio
1, 2000

            Each Portfolio invests in a diversified portfolio of other PIMCO
            Funds. This Prospectus explains what you should know about the
            Portfolios before you invest. Please read it carefully.

Share
Classes
A, B
and C

            The Securities and Exchange Commission has not approved or
            disapproved these securities or determined if this Prospectus is
            truthful or complete. Any representation to the contrary is a
            criminal offense.

1 PIMCO Funds: Multi-Manager Series
<PAGE>



            Table of Contents

<TABLE>
         <S>                                                                 <C>
         Summary Information................................................   3
         Portfolio Summaries
           90/10 Portfolio..................................................   5
           60/40 Portfolio..................................................   8
           30/70 Portfolio..................................................  11
         Summary of Principal Risks.........................................  14
         Investment Objectives and Principal Investment Strategies..........  20
         Underlying Funds...................................................  23
         Other Risk Information.............................................  26
         Management of the Portfolios.......................................  27
         Investment Options - Class A, B and C Shares ......................  29
         How Portfolio Shares Are Priced....................................  32
         How to Buy and Sell Shares.........................................  32
         Portfolio Distributions............................................  36
         Tax Consequences...................................................  37
         Financial Highlights...............................................  39
</TABLE>

                                                                   Prospectus  2
<PAGE>

            Summary Information

            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
            targets and ranges among certain Funds in the PIMCO Funds family.
            The Portfolios invest only in Funds in the PIMCO Funds family. The
            PIMCO Funds in which the Portfolios invest are called Underlying
            Funds or Funds in this Prospectus.

              Some of the Underlying Funds invest primarily in equity
            securities and are called Underlying Stock Funds. Other Underlying
            Funds invest primarily in fixed income securities, including money
            market instruments, and are called Underlying Bond Funds. The
            Portfolios are named according to 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 table below lists the investment objectives and compares the
            asset allocation strategies of the Portfolios. Other important
            characteristics are described in the individual Portfolio
            Summaries beginning on page 5, and are discussed in greater detail
            under "Investment Objectives and Principal Investment Strategies."
            A "Summary of Principal Risks" begins on page 14.

<TABLE>
<CAPTION>
         PIMCO Funds
         Asset Allocation Series Investment Objective     Allocation Strategy
            ----------------------------------------------------------------------
         <C>                     <C>                      <S>
         90/10 Portfolio         Long-term capital        Under normal conditions,
                                 appreciation             approximately 90% (range
                                                          of 80%-100%) of the
                                                          Portfolio's assets will
                                                          be allocated among
                                                          Underlying Stock Funds
                                                          and 10% (range of 0%-
                                                          20%) among Underlying
                                                          Bond Funds
            ----------------------------------------------------------------------
         60/40 Portfolio         Long-term capital        Under normal conditions,
                                 appreciation and         approximately 60% (range
                                 current income           of 50%-70%) of the
                                                          Portfolio's assets will
                                                          be allocated among
                                                          Underlying Stock Funds
                                                          and 40% (range of 30%-
                                                          50%) among Underlying
                                                          Bond Funds
            ----------------------------------------------------------------------
         30/70 Portfolio         Current income, with     Under normal conditions,
                                 long-term                approximately 30% (range
                                 capital appreciation as  of 25%-35%) of the
                                 a                        Portfolio's assets will
                                 secondary objective      be allocated among
                                                          Underlying Stock Funds
                                                          and 70% (range of 65%-
                                                          75%) among Underlying
                                                          Bond Funds
</TABLE>

Risk/Return You should choose among the Portfolios based on personal
Comparison  investment objectives, investment time horizon, tolerance for risk
            and personal financial circumstances. Generally speaking,
            historical data suggests that the longer the time horizon, the
            greater the likelihood that the total return of a portfolio that
            invests primarily in equity securities will be higher than the
            total return of a portfolio that invests primarily in fixed income
            securities. However, an equity portfolio is generally subject to
            higher levels of overall risk and price volatility than a fixed
            income portfolio and is considered to be a more aggressive
            investment. Based on these assumptions, the following chart gives
            some indication of the comparative risk/return potential of the
            Portfolios according to their equity/fixed income allocation
            targets and ranges. Note that these assumptions may not be correct
            in future market conditions and the chart may not accurately
            predict the actual comparative risk/return of the Portfolios under
            all market conditions.


                  90/10 Portfolio might be suitable if you have a relatively
                  long time horizon, seek long-term capital appreciation
                  potential and have a fairly high tolerance for risk and
                  volatility.

                  60/40 Portfolio might be suitable if you have a medium-
                  range time horizon, seek a balance of long-term capital
                  appreciation potential and income and have medium tolerance
                  for risk and volatility.

                  30/70 Portfolio might be suitable if you have a shorter
                  time horizon, seek a higher level of income combined with
                  some potential for long-term capital appreciation and have
                  a lower tolerance for risk and volatility.


              It is possible to lose money on investments in the Portfolios.
            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.
            The fact that a Portfolio may have had good performance in the
            past (for example, during the year ended 1999) is no assurance
            that the value of the Fund's investments will not decline in the
            future or appreciate at a slower rate. An investment in a
            Portfolio is not a deposit of a bank and is not guaranteed or
            insured by the Federal Deposit Insurance Corporation or any other
            government agency.


3 PIMCO Funds: Multi-Manager Series
<PAGE>

            Summary Information (continued)

Asset       PIMCO Advisors L.P. serves as the investment adviser to the
Allocation  Portfolios. PIMCO Advisors selects the Underlying Funds in which
Strategies  the Portfolios may invest. PIMCO Advisors' Asset Allocation
            Committee determines how each Portfolio allocates and reallocates
            its assets among the Underlying Funds selected by PIMCO Advisors
            according to the Portfolio's equity/fixed income allocation
            targets and ranges. The Committee attempts to diversify each
            Portfolio's assets broadly among the major asset classes and sub-
            classes represented by the Underlying Funds.

              The major equity asset classes and sub-classes held by the
            Underlying Stock Funds include those categorized by investment
            style/category (growth, blend, value, enhanced index, sector-
            related), region (U.S. equities, international developed markets,
            international emerging markets), and market capitalization (large-
            cap, mid-cap and small-cap). The major fixed income asset classes
            and sub-classes held by the Underlying Bond Funds include those
            categorized by sector/investment specialty (government securities,
            mortgage-related securities, corporate bonds and inflation-indexed
            bonds), region (U.S. fixed income, developed foreign fixed income,
            emerging markets fixed income), credit quality (investment
            grade/money market, medium grade, high yield), and duration (long-
            term, intermediate-term and short-term).

              Please see "Underlying Funds" in this Prospectus for a
            description of the Underlying Funds as categorized by their
            investment styles and main investments.

              The Portfolios may invest in any or all of the Underlying Funds,
            but will not normally invest in every Underlying Fund at any
            particular time. Each Portfolio may invest in shares of the same
            Underlying Funds; however, the percentage of each Portfolio's
            assets so invested will vary depending on the Portfolio's
            investment objective. The Asset Allocation Committee does not
            allocate a Portfolio's assets according to a predetermined blend
            of particular Underlying Funds. Instead, the Committee meets
            regularly to determine the mix of Underlying Funds appropriate for
            each Portfolio by allocating among the asset classes and sub-
            classes held by the Underlying Funds. When making these decisions,
            the Committee considers various quantitative and qualitative data
            relating to the U.S. and foreign economies and securities markets.
            This data includes projected growth trends in the U.S. and foreign
            economies, forecasts for interest rates and the relationship
            between short- and long-term interest rates (yield curve), current
            and projected trends in inflation, relative valuation levels in
            the equity and fixed income markets and various segments within
            those markets, the outlook and projected growth of various
            industrial sectors, information relating to business cycles,
            borrowing trends and the cost of capital, political trends, data
            relating to trade balances and labor information. The Committee
            may also consider proprietary research provided by the investment
            advisers and sub-advisers of the Underlying Funds.

              The Committee then allocates each Portfolio's assets among the
            Underlying Funds selected by PIMCO Advisors to fill out the asset
            class and sub-class weightings it has identified according to the
            Portfolio's equity/fixed income targets and ranges. The Committee
            has the flexibility to reallocate each Portfolio's assets in
            varying percentages among any or all of the Underlying Funds
            selected by PIMCO Advisors based on the Committee's ongoing
            analyses of the equity and fixed income markets, although these
            tactical shifts are not expected to be large or frequent in
            nature.

"Fund of    The term "fund of funds" is used to describe mutual funds, such as
Funds"      the Portfolios, that pursue their investment objectives by
Structure   investing in other mutual funds. Your cost of investing in a
and         Portfolio will generally be higher than the cost of investing in a
Expenses    mutual fund that invests directly in individual stocks and bonds.
            By investing in a Portfolio, you will indirectly bear fees and
            expenses charged by the Underlying Funds in which the Portfolio
            invests in addition to the Portfolio's direct fees and expenses.
            In addition, the use of a fund of funds structure could affect the
            timing, amount and character of distributions to you and therefore
            may increase the amount of taxes payable by you.

Portfolio   The following Portfolio Summaries identify each Portfolio's
Descriptionsinvestment objective, principal investments and strategies,
and Fees    principal risks, performance information and fees and expenses. A
            more detailed "Summary of Principal Risks" describing principal
            risks of investing in the Portfolios begins after the Portfolio
            Summaries. A fuller discussion of the Portfolios' investment
            strategies and related information is included under "Investment
            Objectives and Principal Investment Strategies" in this
            Prospectus.

                                                                   Prospectus  4
<PAGE>

            90/10 Portfolio

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


Principal   Investment
Investments Objective
and                           Allocation
Strategies                    Strategy          Target  Range

            Seeks long-term   Underlying Stock
            capital            Funds             90%    80%-100%
            appreciation      Underlying Bond
                               Funds             10%     0%-20%
            Dividend
            Frequency
            At least annually


            The Portfolio seeks to achieve its investment objective by
            normally investing approximately 90% (within a range of 80%-100%)
            of its assets in Underlying Stock Funds and approximately 10%
            (within a range of 0%-20%) of its assets in Underlying Bond Funds.
            The Portfolio invests all of its assets in shares of the
            Underlying Funds and does not invest directly in stocks or bonds
            of other issuers.

              Please see "Asset Allocation Strategies" on page 3 for a summary
            of how the Asset Allocation Committee allocates and reallocates
            the Portfolio's assets among particular Underlying Funds.

              The Portfolio may concentrate investments in a particular
            Underlying Fund by investing more than 25% of its assets in that
            Fund.

              Based on the Portfolio's equity/fixed income allocation
            strategy, it 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.

--------------------------------------------------------------------------------
Principal   Allocation Risk The Portfolio's investment performance depends
Risks       upon how its assets are allocated and reallocated among particular
            Underlying Funds. A principal risk of investing in the Portfolio
            is that the Asset Allocation Committee's allocation techniques and
            decisions and/or PIMCO Advisors' selection of Underlying Funds
            will not produce the desired results, and therefore the Portfolio
            may not achieve its investment objective.

            Underlying Fund Risks The value of your investment in the
            Portfolio is directly related to the investment performance of the
            Underlying Funds in which it invests. Therefore, the principal
            risks of investing in the Portfolio are closely related to the
            principal risks associated with the Underlying Funds and their
            investments. Because the Portfolio's allocation among the
            Underlying Funds will vary, your investment may be subject to any
            and all of these risks at different times and to different
            degrees.

            Among the principal risks of the Underlying Funds, which could
            adversely affect the net asset value, yield and total return of
            the Portfolio, are:

              .Market Risk           .Derivatives Risk    .Interest Rate Risk
              .Issuer Risk           .Foreign Investment Risk
                                                          .Credit Risk
              .Value Securities Risk .Emerging Markets Risk
                                                          .High Yield Risk
              .Growth Securities Risk.Currency Risk       .Mortgage Risk
              .Smaller Company Risk  .Focused Investment Risk
                                                          .Management Risk
              .Liquidity Risk        .Leveraging Risk

            Please see "Summary of Principal Risks" following the Portfolio
            Summaries for a description of these and other risks associated
            with the Underlying Funds and an investment in the Portfolio.

5 PIMCO Funds: Multi-Manager Series
<PAGE>

            90/10 Portfolio (continued)

--------------------------------------------------------------------------------
Performance Shown below is summary performance information for the Portfolio
Information in a bar chart and an Average Annual Total Returns table. The
            information provides some indication of the risks of investing in
            the Portfolio by showing changes in its performance from year to
            year and by showing how the Portfolio's average annual returns
            compare with the returns of broad-based securities market indices
            and an index of mutual funds. The bar chart and the information to
            its right show performance of the Portfolio's Class A shares, but
            the returns do not reflect the impact of sales charges (loads). If
            they did, the returns would be lower than those shown. Unlike the
            bar chart, performance for Class A, B and C shares in the Average
            Annual Total Returns table reflects the impact of sales charges.
            Past performance is no guarantee of future results.

            Calendar Year Total Returns -- Class A

                                                             More Recent
                                                             Return
                                                             Information
                                                             1/1/00-9/30/00
                                                                          4.52%

                                                             Highest and
                                                             Lowest Quarter
                                                             Returns
                                                             (for periods
                                                             shown in the bar
                                                             chart)
                                                             ------------------
                                                             Highest (10/1/99-
                                                             12/31/99)
                                                                         14.32%
                                                             ------------------
                                                             Lowest (7/1/99-
                                                             9/30/99)
                                                                         -3.86%

    [GRAPH]       Calendar Year End (through 12/31)

'99       19.00%


            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
         <S>                                       <C>    <C>
                                                          Portfolio Inception
                                                   1 Year (9/30/98)(/4/)
            -----------------------------------------------------------------
         Class A                                   12.50% 22.17%
            -----------------------------------------------------------------
         Class B                                   13.13% 23.89%
            -----------------------------------------------------------------
         Class C                                   17.02% 26.82%
            -----------------------------------------------------------------
         Russell 3000 Index(/1/)                   20.89% 35.92%
            -----------------------------------------------------------------
         Lipper Multi-Cap Core Funds Average(/2/)  20.63% 35.90%
            -----------------------------------------------------------------
         Blended Index(/3/)                        20.54% 33.44%
            -----------------------------------------------------------------
</TABLE>

            (1) The Russell 3000 Index is an unmanaged index of the 3,000
                largest U.S. companies based on total market capitalization.
                It is not possible to invest directly in the index.
            (2) The Lipper Multi-Cap Core Funds Average is a total return
                performance average of funds tracked by Lipper Analytical
                Services, Inc. that invest in companies with a variety of
                capitalization ranges, without concentrating in any one market
                capitalization range over an extended period of time. It does
                not take into account sales charges.
            (3) The Blended Index represents the blended performance of a
                hypothetical index developed by PIMCO Advisors made up of 72%
                Russell 3000 Index, 18% MSCI All Country World ex-U.S. Index
                and 10% Lehman Brothers Aggregate Bond Index. The Russell 3000
                Index is described above. The MSCI All Country World ex-U.S.
                Index is an unmanaged index of stocks representing both
                developed and emerging markets but excluding the United
                States. The Lehman Brothers Aggregate Bond Index is an
                unmanaged index of investment grade, U.S. dollar-denominated
                fixed income securities of domestic issuers having a maturity
                greater than one year. It is not possible to invest directly
                in these indices.
            (4) The Portfolio began operations on 9/30/98. Index comparisons
                begin on 9/30/98.

                                                                   Prospectus  6
<PAGE>

            90/10 Portfolio (continued)

--------------------------------------------------------------------------------
Fees and   These tables describe the fees and expenses you may pay if you buy
Expenses   and hold Class A, B or C shares of the Portfolio:
of the
Portfolio

           Shareholder Fees (fees paid directly from your investment)

<TABLE>
         <S>      <C>                                              <C>
                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
            ------------------------------------------------------------------------------------------------------
         Class A  5.50%                                            1%(/1/)
            ------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
            ------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
            ------------------------------------------------------------------------------------------------------
</TABLE>

            (1) Imposed only in certain circumstances where Class A shares are
                purchased without a front-end sales charge at the time of
                purchase.
            (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 "Investment
                Options--Class A, B and C Shares--Contingent Deferred Sales
                Charges (CDSCs)--Class B Shares."
            (3) The CDSC on Class C shares is imposed only on shares redeemed
                in the first year.

            Annual Portfolio Operating Expenses (expenses that are deducted
            from Portfolio assets)

<TABLE>
         <S>          <C>      <C>               <C>            <C>                <C>
                                                          Other Expenses
                                                 ---------------------------------
                               Distribution                                        Total Annual
                      Advisory and/or Service    Administrative Underlying         Portfolio Operating
         Share Class  Fees     (12b-1) Fees(/1/) Fees(/2/)      Fund Expenses(/3/) Expenses
            ------------------------------------------------------------------------------------------
         Class A      None     0.25%             0.40%          0.78%              1.43%
            ------------------------------------------------------------------------------------------
         Class B      None     1.00              0.40           0.78               2.18
            ------------------------------------------------------------------------------------------
         Class C      None     1.00              0.40           0.78               2.18
            ------------------------------------------------------------------------------------------
</TABLE>

            (1) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, a Class B or Class C shareholders may, depending
                upon 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.
            (2) The Administrative Fees are subject to a reduction of 0.05% on
                average net assets attributable in the aggregate to the
                Portfolio's Class A, B and C shares in excess of $2.5 billion.
            (3) Based on estimated expenses for the current fiscal year.
                Underlying Fund Expenses for the Portfolio are estimated based
                upon a recent allocation of the Portfolio's assets among
                Underlying Funds and upon the total annual operating expenses
                of Institutional Class shares of these Underlying Funds. For a
                listing of the expenses associated with each Underlying Fund,
                please see "Management of the Portfolios--Underlying Fund
                Expenses." Total Annual Portfolio Operating Expenses and the
                Examples set forth below are based on estimates of the
                Underlying Fund Expenses the Portfolio will incur. Actual
                Underlying Fund Expenses for the 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.


            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Portfolio with the
            costs of investing in other mutual funds. The Examples assume that
            you invest $10,000 in the noted class of shares for the time
            periods indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the
            Portfolio's operating expenses remain the same. Although your
            actual costs may be higher or lower, the Examples show what your
            costs would be based on these assumptions.

<TABLE>
<CAPTION>
                                                                                           Example: Assuming you do not
                      Example: Assuming you redeem your shares at the end of each period   redeem your shares
         <S>          <C>              <C>              <C>              <C>               <C>    <C>    <C>    <C>
         Share Class  Year 1           Year 3           Year 5           Year 10           Year 1 Year 3 Year 5 Year 10
            -----------------------------------------------------------------------------------------------------------
         Class A      $688             $978             $1,289           $2,169            $688   $978   $1,289 $2,169
            -----------------------------------------------------------------------------------------------------------
         Class B       721              982              1,369            2,228             221    682    1,169  2,228
            -----------------------------------------------------------------------------------------------------------
         Class C       321              682              1,169            2,513             221    682    1,169  2,513
            -----------------------------------------------------------------------------------------------------------
</TABLE>

7 PIMCO Funds: Multi-Manager Series
<PAGE>

            60/40 Portfolio

--------------------------------------------------------------------------------
Principal   Investment
Investments Objective
and
Strategies  Seeks long-term
            capital           Allocation
            appreciation and  Strategy          Target  Range
            current income
                              Underlying Stock
            Dividend          Funds             60%   50%-70%
            Frequency         Underlying Bond
            Quarterly         Funds             40%   30%-50%


            The Portfolio seeks to achieve its investment objective by
            normally investing approximately 60% (within a range of 50%-70%)
            of its assets in Underlying Stock Funds and approximately 40%
            (within a range of 30%-50%) of its assets in Underlying Bond
            Funds. The Portfolio invests all of its assets in shares of the
            Underlying Funds and does not invest directly in stocks or bonds
            of other issuers.

              Please see "Asset Allocation Strategies" on page 3 for a summary
            of how the Asset Allocation Committee allocates and reallocates
            the Portfolio's assets among particular Underlying Funds.

              The Portfolio may concentrate investments in a particular
            Underlying Fund by investing more than 25% of its assets in that
            Fund.

              Based on the Portfolio's equity/fixed income allocation
            strategy, it might be suitable for an investor with a medium-range
            time horizon who seeks a balance of long-term capital appreciation
            potential and income and has a medium tolerance for risk and
            volatility.

--------------------------------------------------------------------------------
Principal   Allocation Risk The Portfolio's investment performance depends
Risks       upon how its assets are allocated and reallocated among particular
            Underlying Funds. A principal risk of investing in the Portfolio
            is that the Asset Allocation Committee's allocation techniques and
            decisions and/or PIMCO Advisors' selection of Underlying Funds
            will not produce the desired results, and therefore the Portfolio
            may not achieve its investment objective.

            Underlying Fund Risks The value of your investment in the
            Portfolio is directly related to the investment performance of the
            Underlying Funds in which it invests. Therefore, the principal
            risks of investing in the Portfolio are closely related to the
            principal risks associated with the Underlying Funds and their
            investments. Because the Portfolio's allocation among the
            Underlying Funds will vary, your investment may be subject to any
            and all of these risks at different times and to different
            degrees.

            Among the principal risks of the Underlying Funds, which could
            adversely affect the net asset value, yield and total return of
            the Portfolio, are:

              .Market Risk           .Credit Risk         .Emerging Markets
              .Issuer Risk           .High Yield Risk      Risk
              .Value Securities Risk .Mortgage Risk       .Currency Risk
              .Growth Securities Risk.Liquidity Risk      .Focused Investment
              .Smaller Company Risk  .Derivatives Risk     Risk
              .Interest Rate Risk                         .Leveraging Risk
                                     .Foreign Investment
                                      Risk                .Management Risk

            Please see "Summary of Principal Risks" following the Portfolio
            Summaries for a description of these and other risks associated
            with the Underlying Funds and an investment in the Portfolio.

                                                                   Prospectus  8
<PAGE>

            60/40 Portfolio (continued)

--------------------------------------------------------------------------------
Performance Shown below is summary performance information for the Portfolio
Information in a bar chart and an Average Annual Total Returns table. The
            information provides some indication of the risks of investing in
            the Portfolio by showing changes in its performance from year to
            year and by showing how the Portfolio's average annual returns
            compare with the returns of broad-based securities market indices
            and an index of mutual funds. The bar chart and the information to
            its right show performance of the Portfolio's Class A shares, but
            the returns do not reflect the impact of sales charges (loads). If
            they did, the returns would be lower than those shown. Unlike the
            bar chart, performance for Class A, B and C shares in the Average
            Annual Total Returns table reflects the impact of sales charges.
            Past performance is no guarantee of future results.

            Calendar Year Total Returns -- Class A

                                                            More Recent Return
                                                            Information
                                                            1/1/00-9/30/00
                                                                           5.18%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            -------------------
                                                            Highest (10/1/99-
                                                            12/31/99)
                                                                          9.40%
                                                            -------------------
                                                            Lowest (7/1/99-
                                                            9/30/99)
                                                                         -2.40%

    [GRAPH]      Calendar Year End (through 12/31)

'99       12.03%


            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
         <S>                                        <C>    <C>
                                                           Portfolio Inception
                                                    1 Year (9/30/98)(/5/)
            ------------------------------------------------------------------
         Class A                                     5.87% 13.02%
            ------------------------------------------------------------------
         Class B                                     6.10% 14.25%
            ------------------------------------------------------------------
         Class C                                    10.13% 17.35%
            ------------------------------------------------------------------
         Russell 3000 Index(/1/)                    20.89% 35.92%
            ------------------------------------------------------------------
         Lehman Brothers Aggregate Bond Index(/2/)  -0.82% -0.39%
            ------------------------------------------------------------------
         Lipper Balanced Fund Average(/3/)           8.79% 16.57%
            ------------------------------------------------------------------
         Blended Index(/4/)                         13.12% 21.30%
            ------------------------------------------------------------------
</TABLE>

            (1)  The Russell 3000 Index is an unmanaged index of the 3,000
                 largest U.S. companies based on total market capitalization.
                 It is not possible to invest directly in the index.
            (2)  The Lehman Brothers Aggregate Bond Index is an unmanaged
                 index of investment grade, U.S. dollar-denominated fixed
                 income securities of domestic issuers having a maturity
                 greater than one year. It is not possible to invest directly
                 in the index.
            (3)  The Lipper Balanced Fund Average is a total return
                 performance average of funds tracked by Lipper Analytical
                 Services, Inc. whose primary objective is to conserve
                 principal by maintaining at all times a balanced portfolio of
                 both stocks and bonds. It does not take into account sales
                 charges.
            (4)  The Blended Index represents the blended performance of a
                 hypothetical index developed by PIMCO Advisors made up of 48%
                 Russell 3000 Index, 12% MSCI All Country World ex-U.S. Index
                 and 40% Lehman Brothers Aggregate Bond Index. The Russell
                 3000 Index and Lehman Brothers Aggregate Bond Index are
                 described above. The MSCI All Country World ex-U.S. Index is
                 an unmanaged index of stocks representing both developed and
                 emerging markets but excluding the United States. It is not
                 possible to invest directly in these indices.
            (5)  The Portfolio began operations on 9/30/98. Index comparisons
                 begin on 9/30/98.

9  PIMCO Funds: Multi-Manager Series
<PAGE>

            60/40 Portfolio (continued)

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

Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Class A, B or C shares of the Portfolio:
of the
Portfolio
            Shareholder Fees (fees paid directly from your investment)

<TABLE>
         <S>      <C>                                              <C>
                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
            ------------------------------------------------------------------------------------------------------
         Class A  5.50%                                            1%(/1/)
            ------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
            ------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
            ------------------------------------------------------------------------------------------------------
</TABLE>

            (1)  Imposed only in certain circumstances where Class A shares
                 are purchased without a front-end sales charge at the time of
                 purchase.
            (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 "Investment
                 Options--Class A, B and C Shares--Contingent Deferred Sales
                 Charges (CDSCs)--Class B Shares."
            (3)  The CDSC on Class C shares is imposed only on shares redeemed
                 in the first year.


<TABLE>
         <S>          <C>      <C>               <C>            <C>                <C>
                                                          Other Expenses
                                                 ---------------------------------
                               Distribution                                        Total Annual
                      Advisory and/or Service    Administrative Underlying         Portfolio Operating
         Share Class  Fees     (12b-1) Fees(/1/) Fees(/2/)      Fund Expenses(/3/) Expenses
            ------------------------------------------------------------------------------------------
         Class A      None     0.25%             0.40%          0.67%              1.32%
            ------------------------------------------------------------------------------------------
         Class B      None     1.00              0.40           0.67               2.07
            ------------------------------------------------------------------------------------------
         Class C      None     1.00              0.40           0.67               2.07
            ------------------------------------------------------------------------------------------
</TABLE>

            (1) Due to the 12b-1 distribution fee imposed on Class B and Class
                C shares, a Class B or Class C shareholders may, depending
                upon 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.
            (2) The Administrative Fees are subject to a reduction of 0.05% on
                average net assets attributable in the aggregate to the
                Portfolio's Class A, B and C shares in excess of $2.5 billion.
            (3) Based on estimated expenses for the current fiscal year.
                Underlying Fund Expenses for the Portfolio are estimated based
                upon a recent allocation of the Portfolio's assets among
                Underlying Funds and upon the total annual operating expenses
                of Institutional Class shares of these Underlying Funds. For a
                listing of the expenses associated with each Underlying Fund,
                please see "Management of the Portfolios--Underlying Fund
                Expenses." Total Annual Portfolio Operating Expenses and the
                Examples set forth below are based on estimates of the
                Underlying Fund Expenses the Portfolio will incur. Actual
                Underlying Fund Expenses for the 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.

            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Portfolio with the
            costs of investing in other mutual funds. The Examples assume that
            you invest $10,000 in the noted class of shares for the time
            periods indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the
            Portfolio's operating expenses remain the same. Although your
            actual costs may be higher or lower, the Examples show what your
            costs would be based on these assumptions.

<TABLE>
<CAPTION>
                                                                                           Example: Assuming you do not
                      Example: Assuming you redeem your shares at the end of each period   redeem your shares
         <S>          <C>              <C>              <C>              <C>               <C>    <C>    <C>    <C>
         Share Class  Year 1           Year 3           Year 5           Year 10           Year 1 Year 3 Year 5 Year 10
            -----------------------------------------------------------------------------------------------------------
         Class A      $677             $945             $1,234           $2,053            $677   $945   $1,234 $2,053
            -----------------------------------------------------------------------------------------------------------
         Class B       710              949              1,314            2,112             210    649    1,114  2,112
            -----------------------------------------------------------------------------------------------------------
         Class C       310              649              1,114            2,400             210    649    1,114  2,400
            -----------------------------------------------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 10
<PAGE>

            30/70 Portfolio

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


Principal   Investment
Investments Objective
and         Seeks current     Allocation
Strategies  income, with      Strategy          Target  Range
            long-term capital
            appreciation as a Underlying Stock
            secondary          Funds             30%   25%-35%
            objective         Underlying Bond
                               Funds             70%   65%-75%
            Dividend
            Frequency
            Monthly


            The Portfolio seeks to achieve its investment objective by
            normally investing approximately 30% (within a range of 25%-35%)
            of its assets in Underlying Stock Funds and approximately 70%
            (within a range of 65%-75%) of its assets in Underlying Bond
            Funds. The Portfolio invests all of its assets in shares of the
            Underlying Funds and does not invest directly in stocks or bonds
            of other issuers.

              Please see "Asset Allocation Strategies" on page 3 for a summary
            of how the Asset Allocation Committee allocates and reallocates
            the Portfolio's assets among particular Underlying Funds.

              The Portfolio may concentrate investments in a particular
            Underlying Fund by investing more than 25% of its assets in that
            Fund.

              Based on the Portfolio's equity/fixed income allocation
            strategy, it might be suitable for an investor with a shorter time
            horizon who seeks a higher level of income combined with some
            potential for long-term capital appreciation and has a lower
            tolerance for risk and volatility.

--------------------------------------------------------------------------------
Principal   Allocation Risk The Portfolio's investment performance depends
Risks       upon how its assets are allocated and reallocated among particular
            Underlying Funds. A principal risk of investing in the Portfolio
            is that the Asset Allocation Committee's allocation techniques and
            decisions and/or PIMCO Advisors' selection of Underlying Funds
            will not produce the desired results, and therefore the Portfolio
            may not achieve its investment objective.

            Underlying Fund Risks The value of your investment in the
            Portfolio is directly related to the investment performance of the
            Underlying Funds in which it invests. Therefore, the principal
            risks of investing in the Portfolio are closely related to the
            principal risks associated with the Underlying Funds and their
            investments. Because the Portfolio's allocation among the
            Underlying Funds will vary, your investment may be subject to any
            and all of these risks at different times and to different
            degrees.

            Among the principal risks of the Underlying Funds, which could
            adversely affect the net asset value, yield and total return of
            the Portfolio, are:

              .Interest Rate Risk .Value Securities Risk  .Emerging Markets
              .Credit Risk        .Growth Securities Risk Risk
              .High Yield Risk    .Smaller Company Risk   .Currency Risk
              .Mortgage Risk      .Liquidity Risk         .Focused Investment
              .Market Risk        .Derivatives Risk       Risk
              .Issuer Risk        .Foreign Investment Risk.Leveraging Risk

                                                          .Management Risk
            Please see "Summary of Principal Risks" following the Portfolio
            Summaries for a description of these and other risks associated
            with the Underlying Funds and an investment in the Portfolio.

11 PIMCO Funds: Multi-Manager Series
<PAGE>

            30/70 Portfolio (continued)

--------------------------------------------------------------------------------
Performance Shown below is summary performance information for the Portfolio
Information in a bar chart and an Average Annual Total Returns table. The
            information provides some indication of the risks of investing in
            the Portfolio by showing changes in its performance from year to
            year and by showing how the Portfolio's average annual returns
            compare with the returns of broad-based securities market indices
            and an index of mutual funds. The bar chart and the information to
            its right show performance of the Portfolio's Class A shares, but
            the returns do not reflect the impact of sales charges (loads). If
            they did, the returns would be lower than those shown. Unlike the
            bar chart, performance for Class A, B and C shares in the Average
            Annual Total Returns table reflects the impact of sales charges.
            Past performance is no guarantee of future results.

            Calendar Year Total Returns -- Class A

<TABLE>
<S>  <C>
                                                            More Recent Return
                                                            Information
                                                            1/1/00-9/30/00 5.78%

                                                            Highest and Lowest
                                                            Quarter Returns
                                                            (for periods shown
                                                            in the bar chart)
                                                            --------------------
                                                            Highest (10/1/99-
                                                            12/31/99)
                                                                           4.74%
                                                            --------------------
                                                            Lowest (1/1/99-
                                                            3/31/99)
                                                                          -1.43%
</TABLE>

    [GRAPH]       Calendar Year End (through 12/31)

'99        4.64%


            Average Annual Total Returns (for periods ended 12/31/99)
<TABLE>
         <S>                                        <C>     <C>
                                                            Portfolio Inception
                                                    1 Year  (9/30/98)(/4/)
            -------------------------------------------------------------------
         Class A                                    -0.07%    4.73%
            -------------------------------------------------------------------
         Class B                                    -1.10%    4.66%
            -------------------------------------------------------------------
         Class C                                     2.91%    7.82%
            -------------------------------------------------------------------
         Lehman Brothers Aggregate Bond Index(/1/)  -0.82%   -0.39%
            -------------------------------------------------------------------
         Lipper General Bond Fund Average(/2/)        1.17%    2.88%
            -------------------------------------------------------------------
         Blended Index(/3/)                           6.00%   10.04%
            -------------------------------------------------------------------
</TABLE>

            (1)  The Lehman Brothers Aggregate Bond Index is an unmanaged
                 index of investment grade, U.S. dollar-denominated fixed
                 income securities of domestic issuers having a maturity
                 greater than one year. It is not possible to invest directly
                 in the index.
            (2)  The Lipper General Bond Fund Average is a total return
                 performance average of funds tracked by Lipper Analytical
                 Services, Inc. that intend to keep most of their assets in
                 corporate and government debt issues and do not have any
                 quality or maturity restrictions. It does not take into
                 account sales charges.
            (3)  The Blended Index represents the blended performance of a
                 hypothetical index developed by PIMCO Advisors made up of 24%
                 Russell 3000 Index, 6% MSCI All Country World ex-U.S. Index
                 and 70% Lehman Brothers Aggregate Bond Index. The Russell
                 3000 Index is an unmanaged index of the 3,000 largest U.S.
                 companies based on total market capitalization. The MSCI All
                 Country World ex-U.S. Index is an unmanaged index of stocks
                 representing both developed and emerging markets but
                 excluding the United States. The Lehman Brothers Aggregate
                 Bond Index is described above. It is not possible to invest
                 directly in these indices.
            (4)  The Portfolio began operations on 9/30/98. Index comparisons
                 begin on 9/30/98.

                                                                   Prospectus 12
<PAGE>

            30/70 Portfolio (continued)

--------------------------------------------------------------------------------
            These tables describe the fees and expenses you may pay if you buy
            and hold Class A, B or C shares of the Portfolio:

Fees and    Shareholder Fees (fees paid directly from your investment)
Expenses
of the
Portfolio

<TABLE>
         <S>      <C>                                              <C>
                  Maximum Sales Charge (Load) Imposed              Maximum Contingent Deferred Sales Charge (Load)
                  on Purchases (as a percentage of offering price) (as a percentage of original purchase price)
            ------------------------------------------------------------------------------------------------------
         Class A  4.50%                                            1%(/1/)
            ------------------------------------------------------------------------------------------------------
         Class B  None                                             5%(/2/)
            ------------------------------------------------------------------------------------------------------
         Class C  None                                             1%(/3/)
            ------------------------------------------------------------------------------------------------------
</TABLE>

            (1)  Imposed only in certain circumstances where Class A shares
                 are purchased without a front-end sales charge at the time of
                 purchase.
            (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 "Investment
                 Options--Class A, B and C Shares--Contingent Deferred Sales
                 Charges (CDSCs)--Class B Shares."
            (3)  The CDSC on Class C shares is imposed only on shares redeemed
                 in the first year.

            Annual Portfolio Operating Expenses (expenses that are deducted
            from Portfolio assets)

<TABLE>
         <S>          <C>      <C>               <C>            <C>                <C>
                                                          Other Expenses
                                                 ---------------------------------
                               Distribution                                        Total Annual
                      Advisory and/or Service    Administrative Underlying         Portfolio Operating
         Share Class  Fees     (12b-1) Fees(/1/) Fees(/2/)      Fund Expenses(/3/) Expenses
            ------------------------------------------------------------------------------------------
         Class A      None     0.25%             0.40%          0.56%              1.21%
            ------------------------------------------------------------------------------------------
         Class B      None     1.00              0.40           0.56               1.96
            ------------------------------------------------------------------------------------------
         Class C      None     1.00              0.40           0.56               1.96
            ------------------------------------------------------------------------------------------
</TABLE>

            (1)  Due to the 12b-1 distribution fee imposed on Class B and
                 Class C shares, a Class B or Class C shareholders may,
                 depending upon 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.
            (2)  The Administrative Fees are subject to a reduction of 0.05%
                 on average net assets attributable in the aggregate to the
                 Portfolio's Class A, B, and C shares in excess of $2.5
                 billion.
            (3)  Based on estimated expenses for the current fiscal year.
                 Underlying Fund Expenses for the Portfolio are estimated
                 based upon a recent allocation of the Portfolio's assets
                 among Underlying Funds and upon the total annual operating
                 expenses of Institutional Class shares of these Underlying
                 Funds. For a listing of the expenses associated with each
                 Underlying Fund, please see "Management of the Portfolios--
                 Underlying Fund Expenses." Total Annual Portfolio Operating
                 Expenses and the Examples set forth below are based on
                 estimates of the Underlying Fund Expenses the Portfolio will
                 incur. Actual Underlying Fund Expenses for the 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.


            Examples. The Examples are intended to help you compare the cost
            of investing in Class A, B or C shares of the Portfolio with the
            costs of investing in other mutual funds. The Examples assume that
            you invest $10,000 in the noted class of shares for the time
            periods indicated, your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the
            Portfolio's operating expenses remain the same. Although your
            actual costs may be higher or lower, the Examples show what your
            costs would be based on these assumptions.

<TABLE>
<CAPTION>
                                                                                           Example: Assuming you do not
                      Example: Assuming you redeem your shares at the end of each period   redeem your shares
         <S>          <C>              <C>              <C>              <C>               <C>    <C>    <C>    <C>
         Share Class  Year 1           Year 3           Year 5           Year 10           Year 1 Year 3 Year 5 Year 10
            -----------------------------------------------------------------------------------------------------------
         Class A      $568             $817             $1,085           $1,850            $568   $817   $1,085 $1,850
            -----------------------------------------------------------------------------------------------------------
         Class B       699              915              1,257            1,995             199    615    1,057  1,995
            -----------------------------------------------------------------------------------------------------------
         Class C       299              615              1,057            2,285             199    615    1,057  2,285
            -----------------------------------------------------------------------------------------------------------
</TABLE>

13 PIMCO Funds: Multi-Manager Series
<PAGE>

            Summary of Principal Risks

            The value of your investment in a Portfolio changes with the
            values of that Portfolio's investments in the Underlying Funds.
            Many factors can affect those values. The factors that are most
            likely to have a material effect on a particular Portfolio's
            investments as a whole are called "principal risks." The principal
            risks of each Portfolio are identified in the Portfolio Summaries
            beginning on page 5 and are summarized in this section. There is
            no guarantee that a Portfolio will be able to achieve its
            investment objective.

            Allocation Risk

            Each Portfolio's investment performance depends upon how its
            assets are allocated and reallocated among particular Underlying
            Funds according to the Portfolio's equity/fixed income allocation
            targets and ranges. A principal risk of investing in each
            Portfolio is that PIMCO Advisors' Asset Allocation Committee will
            make less than optimal or poor asset allocation decisions and/or
            that PIMCO Advisors will make less than optimal decisions in
            selecting the Underlying Funds in which the Portfolios invest. The
            Committee attempts to identify asset classes and sub-classes
            represented by the Underlying Funds that will provide consistent,
            quality performance for the Portfolios, but there is no guarantee
            that the Committee's allocation techniques will produce the
            desired results. It is possible that the Committee and/or PIMCO
            Advisors will focus on Underlying Funds that perform poorly or
            underperform other available Funds under various market
            conditions. You could lose money on your investment in a Portfolio
            as a result of these allocation decisions.

            Underlying Fund Risks

            Because each Portfolio invests all of its assets in Underlying
            Funds, the risks associated with investing in the Portfolios are
            closely related to the risks associated with the securities and
            other investments 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. There
            can be no assurance that the investment objective of any
            Underlying Fund will be achieved.

              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. 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, which will vary. A Portfolio's
            investment in a particular Underlying Fund may and in some cases
            is expected to exceed 25% of its 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.

              The following summarizes principal risks associated with
            investments in the Underlying Funds and, indirectly, with your
            investment in a Portfolio. Each Underlying Fund may be subject to
            additional principal risks other than those described below
            because the types of investments made by an Underlying Fund can
            change over time. The summary is not intended to be exhaustive.
            For a more complete description of these risks and the securities
            and investment techniques used by the Underlying Funds, please
            refer to 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
            Distributor at 1-800-426-0107.

Market      The market price of securities owned by an Underlying Fund may go
Risk        up or down, sometimes rapidly or unpredictably. Securities may
            decline in value due to factors affecting securities markets
            generally or particular industries represented in the securities
            markets. The value of a security may decline due to general market
            conditions which are not specifically related to a particular
            company, such as real or perceived adverse economic conditions,
            changes in the general outlook for corporate earnings, changes in
            interest or currency rates, or adverse investor sentiment
            generally. They may also decline due to factors which affect a
            particular industry or industries, such as labor shortages or
            increased production costs and competitive conditions within an
            industry. Equity securities generally have greater price
            volatility than fixed income securities and the Underlying Stock
            Funds are particularly sensitive to these market risks.

Issuer
Risk
            The value of a security may also decline for a number of reasons
            which directly relate to the issuer, such as management
            performance, financial leverage and reduced demand for the
            issuer's goods or services.

                                                                   Prospectus 14
<PAGE>

Value       Each Underlying Stock Fund may invest in companies that may not be
Securities  expected to experience significant earnings growth, but whose
Risk        securities the Fund's portfolio manager believes are selling at a
            price lower than their true value. PIMCO Equity Income,
            Renaissance, Value, Small-Cap Value, Capital Appreciation, Mid-Cap
            and Micro-Cap Funds and PIMCO Allianz Select International Fund
            place particular emphasis on value securities. Companies that
            issue value securities may have experienced adverse business
            developments or may be subject to special risks that have caused
            their securities to be out of favor. If a portfolio manager's
            assessment of a company's prospects is wrong, or if the market
            does not recognize the value of the company, the price of its
            securities may decline or may not approach the value that the
            portfolio manager anticipates.

Growth      Each Underlying Stock Fund may invest in equity securities of
Securities  companies that its portfolio manager believes will experience
Risk        relatively rapid earnings growth. PIMCO Growth, Target,
            Opportunity, Capital Appreciation, Mid-Cap, Micro-Cap and
            Innovation Funds and PIMCO Allianz Select International Fund place
            particular emphasis on growth securities. Growth securities
            typically trade at higher multiples of current earnings than other
            securities. Therefore, the values of growth securities may be more
            sensitive to changes in current or expected earnings than the
            values of other securities.

Smaller     The general risks associated with equity securities and liquidity
Company     risk are particularly pronounced for securities of companies with
Risk        market capitalizations that are small compared to other publicly
            traded companies. These companies may have limited product lines,
            markets or financial resources or they may depend on a few key
            employees. Securities of smaller companies may trade less
            frequently and in lesser volume than more widely held securities
            and their values may fluctuate more sharply than other securities.
            They may also trade in the over-the-counter market or on a
            regional exchange, or may otherwise have limited liquidity. PIMCO
            Opportunity, Micro-Cap, Small-Cap Value and Innovation Funds
            generally have substantial exposure to this risk. PIMCO Target and
            Mid-Cap Funds and PIMCO Allianz Select International Fund also
            have significant exposure to this risk because they invest
            substantial assets in companies with medium-sized market
            capitalizations, which are smaller and generally less-seasoned
            than the largest companies. Smaller company risk also applies to
            fixed income securities issued by smaller companies and may affect
            certain investments of the Underlying Bond Funds.

Liquidity   Many of the Underlying Funds are subject to liquidity risk.
Risk        Liquidity risk exists when particular investments are difficult to
            purchase or sell, possibly preventing a Fund from selling out of
            these illiquid securities at an advantageous time or price.
            Underlying Funds with principal investment strategies that involve
            securities of companies with smaller market capitalizations,
            foreign securities, derivatives or securities with substantial
            market and/or credit risk tend to have the greatest exposure to
            liquidity risk.

Derivatives
Risk        Many of the Underlying Funds may, but are not required to, use a
            number of derivative instruments for risk management purposes or
            as part of their investment strategies. 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. Examples of
            derivative instruments include options contracts, futures
            contracts, options on futures contracts and swap agreements. An
            Underlying Fund's use of derivative instruments involves risks
            different from, or possibly greater than, the risks associated
            with investing directly in securities and other traditional
            investments. Also, an Underlying Fund's portfolio manager may
            decide not to employ any of these strategies and there is no
            assurance that any derivatives strategy used by a Fund will
            succeed.

              A description of the various derivative instruments in which the
            Underlying Funds may invest and the risks associated with each
            instrument is included in the Underlying Fund prospectuses and in
            the Statement of Additional Information. The following provides a
            more general discussion of important risk factors relating to all
            derivative instruments that may be used 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 instrument 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.


15 PIMCO Funds: Multi-Manager Series
<PAGE>

              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.

              Leveraging 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. To limit leveraging risk, the Underlying Funds
            observe asset segregation requirements to cover their obligations
            under derivative instruments.

              Lack of Availability Because the markets for certain derivative
            instruments (including markets located in foreign countries) are
            relatively new and still developing, suitable derivatives
            transactions may not be available in all circumstances for risk
            management or other purposes. There is no assurance that an
            Underlying Fund will engage in derivatives transactions at any
            time or from time to time. A Fund's ability to use derivatives may
            also be limited by certain regulatory considerations.

              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 an
            Underlying Fund's interest. If a portfolio manager incorrectly
            forecasts the values of securities, currencies or interest rates
            or other economic factors in using derivatives for an Underlying
            Fund, the Fund might have been in a better position if it had not
            entered into the transaction at all. 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 other investments of an
            Underlying Fund. An Underlying Fund may also have to buy or sell a
            security at a disadvantageous time or price because the Fund is
            legally required to maintain offsetting positions or asset
            coverage in connection with certain derivatives transactions.

              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 indexes they are
            designed to closely track. In addition, an Underlying Fund's use
            of derivatives may also cause the Fund to realize higher amounts
            of short-term capital gains (taxed at ordinary income tax rates
            when distributed to shareholders who are individuals) than if the
            Fund had not used such instruments.

Foreign     Many Underlying Funds (in particular, PIMCO International,
(non-       Structured Emerging Markets, Tax-Efficient Structured Emerging
U.S.)       Markets, Global Bond, Foreign Bond and Emerging Markets Bond Funds
Investment  and PIMCO Allianz Select International Fund) invest in securities
Risk        of foreign issuers, securities traded principally in securities
            markets outside the United States and/or securities denominated in
            foreign currencies (together, "foreign securities"). These Funds
            may experience more rapid and extreme changes in value than Funds
            that invest exclusively in securities of U.S. issuers or
            securities that trade exclusively in U.S. markets.

              The securities markets of many foreign countries are relatively
            small, with a limited number of companies representing a small
            number of industries. Foreign securities often trade with less
            frequency and volume than domestic securities and therefore may
            exhibit greater price volatility. Additionally, issuers of foreign
            securities are usually not subject to the same degree of
            regulation as U.S. issuers. Reporting, accounting and auditing
            standards of foreign countries differ, in some cases
            significantly, from U.S. standards. Also, nationalization,
            expropriation or confiscatory taxation, currency blockage,
            political changes or diplomatic developments could adversely
            affect an Underlying Fund's investments in a foreign country. In
            the event of nationalization, expropriation or other confiscation,
            a Fund could lose its entire investment in foreign securities. To
            the extent that an Underlying Fund invests a significant portion
            of its assets in a narrowly defined geographic area such as
            Eastern Europe, South Africa or Asia, the Fund will generally have
            more exposure to regional economic risks associated with foreign
            investments. Adverse conditions in certain regions (such as
            Southeast Asia) can also adversely affect securities of other
            countries whose economies appear to be unrelated. In addition,
            special U.S. tax considerations may apply to an Underlying Fund's
            investment in foreign securities.


                                                                   Prospectus 16
<PAGE>

              Certain Underlying Bond Funds may invest in sovereign debt
            issued by governments, their agencies or instrumentalities, or
            other government-related entities. Holders of sovereign debt may
            be requested to participate in the rescheduling of such debt and
            to extend further loans to governmental entities. In addition,
            there is no bankruptcy proceeding by which defaulted sovereign
            debt may be collected.

Emerging    Certain Underlying Funds (in particular, PIMCO Structured Emerging
Markets     Markets, Tax-Efficient Structured Emerging Markets and Emerging
Risk        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 different from, or greater than, the
            risks of investing in developed foreign countries.

Currency    Many Underlying Funds may invest directly in foreign currencies or
Risk        in securities that trade in, or receive revenues in, foreign
            currencies. To the extent that they do so, these Funds are subject
            to the risk that those currencies will decline in value relative
            to the U.S. dollar, or, in the case of hedging positions, that the
            U.S. Dollar will decline in value relative to the currency being
            hedged. PIMCO Global Bond, Foreign Bond, Emerging Markets Bond,
            International, Structured Emerging Markets and Tax-Efficient
            Structured Emerging Markets Funds and PIMCO Allianz Select
            International Fund are particularly sensitive to currency risk.
            Currency rates in foreign countries may fluctuate significantly
            over short periods of time for a number of reasons, including
            changes in interest rates, intervention (or the failure to
            intervene) by U.S. or foreign governments, central banks or
            supranational entities such as the International Monetary Fund, or
            by the imposition of currency controls or other political
            developments in the U.S. or abroad. For example, uncertainty
            surrounds the introduction of the euro (a common currency unit for
            the European Union) and its effect on the value of European
            currencies as well as securities denominated in local European
            currencies. These and other currencies in which Underlying Fund
            assets are denominated may be devalued against the U.S. dollar,
            resulting in a loss to such Funds.

Focused     Focusing Fund investments in a small number of issuers, industries
Investment  or foreign currencies increases risk. PIMCO Global Bond, Foreign
Risk        Bond and Emerging Markets Bond Funds are "non-diversified," which
            means that they invest in a smaller number of issuers than
            diversified mutual funds. Other Underlying Funds also normally
            invest in a relatively small number of issuers. In addition, many
            Underlying Bond Funds may invest a substantial portion of their
            assets in the bonds of similar projects or from issuers in the
            same state. To the extent that they focus their investments, the
            Underlying Funds may have more risk because changes in the value
            of a single security or the impact of a single economic, political
            or regulatory occurrence may have a greater adverse impact on the
            Underlying Fund's net asset value. Some of those investments also
            may present substantial credit or other risks. PIMCO
            International, Structured Emerging Markets, Tax-Efficient
            Structured Emerging Markets, Global Bond, Foreign Bond and
            Emerging Markets Bond Funds and PIMCO Allianz Select International
            Fund may be subject to increased risk to the extent they focus
            their assets in securities denominated in a particular foreign
            currency or in a narrowly defined geographic area outside the
            U.S., because companies in these areas may share common
            characteristics and are often subject to similar business risks
            and regulatory burdens, and their securities may react similarly
            to economic, market, political or other developments. Similarly,
            PIMCO Innovation Fund is vulnerable to events affecting companies
            which use innovative technologies to gain a strategic, competitive
            advantage in their industry and companies that provide and service
            those technologies because it normally concentrates its
            investments in those companies. Also, the Underlying Funds may
            from time to time have greater risk to the extent they invest a
            substantial portion of their assets in companies in related
            industries such as "technology" or "financial and business
            services," which may share common characteristics, are often
            subject to similar business risks and regulatory burdens, and
            whose securities may react similarly to economic, market,
            political or other developments.

             Although each Portfolio normally invests in a number of different
            Underlying Funds, to the extent that a Portfolio concentrates a
            significant portion of its assets in a single Underlying Fund, it
            will be particularly sensitive to the risks associated with that
            Fund and any investments in which that Fund concentrates.

Leveraging  Leverage, including borrowing, will cause the value of an
Risk        Underlying  Fund's shares to be more volatile that if the Fund did
            not use leverage. This is because leverage tends to exaggerate the
            effect of any increase or decrease in the value of a Fund's
            portfolio securities. Certain Underlying Funds may engage in
            transactions or purchase instruments that give rise to forms of
            leverage. Such transactions and instruments may include, among
            others, the use of reverse repurchase agreements and other
            borrowings,

17 PIMCO Funds: Multi-Manager Series
<PAGE>

            the investment of collateral from loans of portfolio securities,
            or the use of when-issued, delayed-delivery or forward commitment
            transactions. An Underlying Fund's use of derivatives may also
            involve leverage. The use of leverage may also cause an Underlying
            Fund to liquidate portfolio positions when it may not be
            advantageous to do so in order to satisfy its obligations or to
            meet segregation requirements.

Interest    All of the Underlying Funds that invest in fixed income
Rate Risk   securities, and particularly the Underlying Bond Funds, are
            subject to interest rate risk. Changes in the market values of
            fixed income securities 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 declining
            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 that is used to determine the sensitivity of a security's
            price to changes in interest rates. Securities with longer
            durations tend to be more sensitive to changes in interest rates,
            usually making them more volatile than securities with shorter
            durations. Accordingly, Underlying Bond Funds with longer average
            portfolio durations (e.g., PIMCO Long-Term U.S. Government Fund)
            will generally be more sensitive to changes in interest rates than
            Funds with shorter average portfolio 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).

             Many Underlying Funds, including most of the Underlying Bond
            Funds, may invest in securities that are particularly sensitive to
            fluctuations in prevailing interest rates and have relatively high
            levels of interest rate 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).

Credit      All of the Underlying Funds are subject to credit risk. This is
Risk        the risk that the issuer or the guarantor of a fixed income
            security, or the counterparty to a derivatives contract,
            repurchase agreement or a loan of portfolio securities, will be
            unable or unwilling to make timely principal and/or interest
            payments, or to otherwise honor its obligations. Securities are
            subject to varying degrees of credit risk, which are often
            reflecting in credit ratings provided by rating agencies such as
            Moody's Investors Service, Inc. ("Moody's") and Standard & Poor's
            Ratings Services ("S&P").

             The Underlying Funds that invest in fixed income securities
            (particularly the Underlying Bond Funds) 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.

High        High yield securities (commonly known as "junk bonds") are fixed
Yield       income securities rated lower than Baa by Moody's or BBB by S&P,
Risk        or unrated securities determined to be of comparable quality.
            Underlying Bond Funds which invest in high yield securities (in
            particular, PIMCO High Yield and Emerging Markets Bond Funds) may
            be subject to greater levels of interest rate, credit and
            liquidity risk than Funds that invest exclusively in higher
            quality fixed income securities (e.g., PIMCO Money Market and
            Long-Term U.S. Government Funds). These securities are considered
            predominately speculative with respect to the issuer's continuing
            ability to make principal and interest payments (credit risk).
            These securities may also be more susceptible to real or perceived
            adverse economic and competitive industry conditions than higher
            quality fixed income securities. An economic downturn or period of
            rising interest rates could adversely affect the market for these
            securities and reduce an Underlying Bond Fund's ability to sell
            them (liquidity risk).

Mortgage    Most of the Underlying Bond Funds may invest in mortgage-related
Risk        securities. Rising interest rates tend to extend the duration of
            mortgage-related securities, making them more sensitive to changes
            in interest rates. As a result, in a period of rising interest
            rates, an Underlying Fund that holds mortgage-related securities
            may exhibit additional volatility. This is sometimes referred to
            as extension risk. In addition, mortgage-related securities may
            involve special risks relating to unanticipated rates of
            prepayment on the mortgages underlying the securities. This is
            sometimes referred to as prepayment

                                                                   Prospectus 18
<PAGE>

            risk. Declining interest rates may tend to increase prepayments,
            and these prepayments would have to be reinvested at the then-
            prevailing lower interest rates. Therefore, an Underlying Fund
            that holds mortgage-related securities may have less potential for
            capital appreciation during periods of declining interest rates
            than Funds that invest in other types of fixed income securities
            of similar maturities.

Management
Risk        Each Underlying Fund is subject to management risk because it is
            an actively managed investment portfolio. PIMCO Advisors, Pacific
            Investment Management Company LLC ("Pacific Investment Management
            Company"), and the sub-advisers and individual portfolio managers
            of the Underlying Funds will apply investment techniques and risk
            analyses in making investment decisions for the Funds, but there
            can be no guarantee that they will produce the desired results.

A Note on   Each Portfolio may invest in PIMCO StocksPLUS Fund. While the
PIMCO       investment objective of that Fund is to achieve a total return
StocksPLUS  which exceeds the total return performance of the S&P 500 Index,
Fund        it does so by investing substantially all of its assets in a
            combination of equity-based (S&P 500 Index) derivative
            instruments, backed by a portfolio of fixed income securities.
            Consequently, the risks of investing in the Fund include
            derivatives risk and the risks generally associated with the
            Underlying Bond Funds. To the extent that the Fund invests in S&P
            500 Index derivatives backed by a portfolio of fixed income
            securities, under certain conditions, generally in a market where
            the value of both S&P 500 Index 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 Index stocks.

19 PIMCO Funds: Multi-Manager Series
<PAGE>

            Investment Objectives and Principal Investment Strategies

            The investment objective and principal investment strategies 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.

Portfolio   90/10 Portfolio seeks long-term capital appreciation. Under normal
Descriptionsconditions, 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.

             PIMCO Advisors serves as the investment adviser to the Portfolios
            and selects the Underlying Funds in which the Portfolios may
            invest. PIMCO Advisors' Asset Allocation Committee determines how
            each Portfolio allocates and reallocates its assets among the
            Underlying Funds selected by PIMCO Advisors according to the
            Portfolio's equity/fixed income allocation targets and ranges.
            Please see "Asset Allocation Strategies" in the Summary
            Information section above for a description of the allocation
            strategies and techniques used by the Committee. The table below
            illustrates the equity and fixed income allocation targets and
            typical ranges for each Portfolio under normal market conditions.

             Equity and Fixed Income Targets and Ranges
             (as a percentage of each Portfolio's total investments)

<TABLE>
<CAPTION>
                                                             Typical
           PIMCO Funds                            Target     Allocation
           Asset Allocation Series                Allocation Range
               --------------------------------------------------------
           <S>                                    <C>        <C>
           90/10 Portfolio
            Equity--Underlying Stock Funds        90%        80% - 100%
            Fixed Income--Underlying Bond Funds*  10%         0% -  20%
               --------------------------------------------------------
           60/40 Portfolio
            Equity--Underlying Stock Funds        60%        50% -  70%
            Fixed Income--Underlying Bond Funds*  40%        30% -  50%
               --------------------------------------------------------
           30/70 Portfolio
            Equity--Underlying Stock Funds        30%        25% -  35%
            Fixed Income--Underlying Bond Funds*  70%        65% -  75%
</TABLE>

              * The Fixed Income portion may include a money market component
              through investments in PIMCO Money Market Fund.


                                                                   Prospectus 20
<PAGE>

              Each Portfolio invests all of its assets in Underlying Funds and
            may invest in any or all of the 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 exceed 25% of the Portfolio's 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. 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 is also subject to certain investment restrictions
            that are described under "Investment Restrictions" in the
            Statement of Additional Information.

Equity      The equity portion of each Portfolio will be allocated among a
Portion     number of Underlying Stock Funds which represent a broad range of
of the      equity-based asset classes and sub-classes and a variety of
Portfolios  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 Investment Style/Category
              .Growth
              .Blend (Broad Market)
              .Value
              .Enhanced Index
              .Sector-Related

            By Region
              .U.S. Equities
              .International Developed Markets Equities
              .International Emerging Markets Equities

            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."


Fixed       The fixed income portion of each Portfolio will be allocated among
Income      a number of Underlying Bond Funds which represent a broad range of
Portion     fixed income-based asset classes and sub-classes and a variety of
of the      investment objectives and strategies. By allocating assets among
Portfolios  these Funds, the fixed income portions of the Portfolios can be
            diversified in multiple ways, including the following:

            By Sector/Investment Specialty
              .Governments
              .Mortgages
              .Corporate
              .Inflation-Indexed

            By Region
              .U.S. Fixed Income
              .Developed Foreign Fixed Income
              .Emerging Markets Fixed Income

            By Credit Quality
              .Investment Grade/Money Market
              .Medium Grade
              .High Yield

            By Duration
              .Long-Term
              .Intermediate-Term
              .Short-Term

21 PIMCO Funds: Multi-Manager Series
<PAGE>

            For a description of the Underlying Bond Funds and their
            investment objectives and strategies, please see "Underlying
            Funds."

Temporary   In response to unfavorable market and other conditions, each
Defensive   Portfolio may invest up to 100% of its assets in PIMCO Money
Strategies  Market Fund (and may deviate from its asset allocation range) for
            temporary defensive purposes. A Portfolio may also borrow money
            for temporary or emergency purposes. These temporary strategies
            would be inconsistent with the Portfolio's investment objective
            and principal investment strategies and may adversely affect the
            Portfolio's ability to achieve its investment objective.


Portfolio   A change in the securities held by a Portfolio is known as
Turnover    "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
            taxable capital gains. To the extent such gains relate to
            securities held for twelve months or less, such gains will be
            short-term capital gains taxed at ordinary income tax rates when
            distributed to shareholders who are individuals. The trading costs
            and tax effects associated with portfolio turnover may adversely
            affect a Portfolio's performance and the return to shareholders.


Changes     The investment objective, equity/fixed income allocation targets
in          and ranges, and, unless otherwise noted, other investment policies
Investment  of each Portfolio described in this Prospectus may be changed by
Objectives  the Board of Trustees without shareholder approval. If there is a
and         change in a Portfolio's investment objective, allocation target or
Policies    range, or other investment policies, shareholders should consider
            whether the Portfolio remains an appropriate investment in light
            of their then current financial positions and needs.

                                                                   Prospectus 22
<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 achieve 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.

Advisory    PIMCO Advisors serves as investment adviser for each of the
ArrangementsUnderlying Stock Funds, except that its affiliate, Pacific
for the     Investment Management Company, is the sole investment adviser to
Underlying  PIMCO StocksPLUS Fund. The PIMCO Equity Advisors division of PIMCO
Funds       Advisors manages the investments of several of the Underlying
            Stock Funds. PIMCO Advisors retains sub-advisory firms to manage
            the portfolios of other Underlying Stock Funds. These firms
            include PIMCO/Allianz International Advisors LLC, Cadence Capital
            Management, NFJ Investment Group and Parametric Portfolio
            Associates, each of which is an affiliate of PIMCO Advisors, and
            Blairlogie Capital Management, which is not an affiliate. Pacific
            Investment Management Company is the sole investment adviser to
            each of the Underlying Bond Funds. For a complete description of
            the advisory and sub-advisory arrangements for the Underlying
            Funds, please see 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
            Distributor at 1-800-426-0107.

Underlying  The following provides a concise description of the investment
Stock       objective, main investments and other information about each
Funds       Underlying Stock Fund. 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>
                                                                                     Approximate Approximate
               PIMCO                Investment            Main                       Number of   Capitalization
               Fund                 Objective             Investments                Holdings    Range
 ----------------------------------------------------------------------------------------------------------------------
  <C>          <C>                  <C>                   <S>                        <C>         <C>
  Growth Stock Growth               Long-term growth of   Common stocks of           35-40       At least $5 billion
  Funds                             capital;              companies with market
                                    income is an          capitalizations of at
                                    incidental            least $5 billion
                                    consideration
               --------------------------------------------------------------------------------------------------------
               Target               Capital appreciation; Common stocks of           40-60       Between $1 billion
                                    no                    companies with market                  and $10 billion
                                    consideration is      capitalizations of
                                    given to income       between $1 billion and
                                                          $10 billion
               --------------------------------------------------------------------------------------------------------
               Opportunity          Capital appreciation; Common stocks of           60-100      Between $100 million
                                    no                    companies with market                  and $2 billion
                                    consideration is      capitalizations of
                                    given to income       between $100 million and
                                                          $2 billion
 ----------------------------------------------------------------------------------------------------------------------
  Blend Stock  Capital Appreciation Growth of capital     Common stocks of           60-100      At least $1 billion
  Funds                                                   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 of capital     Common stocks of           60-100      More than $500 million
                                                          companies with market                  (excluding the
                                                          capitalizations of more                largest 200
                                                          than $500 million                      companies)
                                                          (excluding the largest
                                                          200 companies) that have
                                                          improving fundamentals
                                                          and whose stock is
                                                          reasonably valued by the
                                                          market
               --------------------------------------------------------------------------------------------------------
               Micro-Cap            Long-term growth of   Common stocks of           60-100      Less than
                                    capital               companies with market                  $250 million
                                                          capitalizations of less
                                                          than $250 million that
                                                          have improving
                                                          fundamentals and whose
                                                          stock is reasonably
                                                          valued by the market
</TABLE>

23 PIMCO Funds: Multi-Manager Series
<PAGE>

<TABLE>
<CAPTION>
                                                                                          Approximate Approximate
                 PIMCO                    Investment            Main                      Number of   Capitalization
                 Fund                     Objective             Investments               Holdings    Range
 ---------------------------------------------------------------------------------------------------------------------------
  <C>            <C>                      <C>                   <S>                       <C>         <C>
  Value Stock    Equity Income            Current income as a   Income-producing common   40-50       More than $2 billion
  Funds                                   primary objective;    stocks of companies
                                          long-term growth of   with market
                                          capital is a          capitalizations of more
                                          secondary objective   than $2 billion
                 -----------------------------------------------------------------------------------------------------------
                 Renaissance              Long-term growth of   Common stocks of          50-80       All capitalizations
                                          capital               companies with below-
                                          and income            average valuations
                                                                whose business
                                                                fundamentals are
                                                                expected to improve
                 -----------------------------------------------------------------------------------------------------------
                 Value                    Long-term growth of   Common stocks of          40          More than $5 billion
                                          capital               companies with market
                                          and income            capitalizations of more
                                                                than $5 billion and
                                                                below average
                                                                valuations whose
                                                                business fundmentals
                                                                are expected to improve
                 -----------------------------------------------------------------------------------------------------------
                 Small-Cap Value          Long-term growth of   Common stocks of          100         Between $100 million
                                          capital               companies with market                 and $1.5 billion
                                          and income            capitalizations of
                                                                between $100 million
                                                                and $1.5 billion and
                                                                below-average price-to-
                                                                earnings ratios
                                                                relative to the market
                                                                and their industry
                                                                groups
 ---------------------------------------------------------------------------------------------------------------------------
  Enhanced Index Tax-Efficient Equity     Maximum after-tax     A broadly diversified     More than   More than $5 billion
  Stock Funds                             growth of capital     portfolio of at least     200
                                                                200 common stocks of
                                                                companies represented
                                                                in the S&P 500 Index
                                                                with market
                                                                capitalizations of more
                                                                than $5 billion
                 -----------------------------------------------------------------------------------------------------------
                 Enhanced Equity          A total return which  Common stocks             100-200     At least $5 billion
                                          equals or exceeds the represented in the S&P
                                          total return          500 Index with market
                                          performance of an     capitalizations of more
                                          index (currently the  than $5 billion
                                          S&P 500 Index) that
                                          represents the
                                          performance of a
                                          reasonably broad
                                          spectrum of common
                                          stocks that are
                                          publicly traded in
                                          the U.S.
                 -----------------------------------------------------------------------------------------------------------
                 StocksPLUS               Total return that     S&P 500 stock index       N/A         N/A
                                          exceeds that          derivatives backed by a
                                          of the S&P 500 Index  portfolio of short-term
                                                                fixed income securities
 ---------------------------------------------------------------------------------------------------------------------------
  International  International            Capital appreciation  Common stocks of          200-250     More than $500 million
  Stock Funds                             through investment in foreign (non-U.S.)
                                          an international      issuers (developed and
                                          portfolio; income is  emerging markets)
                                          an incidental         with market
                                          consideration         capitalizations of more
                                                                than $500 million
                 -----------------------------------------------------------------------------------------------------------
                 Allianz Select           Capital appreciation  Common stocks of          30-60       More than $1 billion
                 International                                  companies located
                                                                outside of the United
                                                                States with market
                                                                capitalizations of more
                                                                than $1 billion
                 -----------------------------------------------------------------------------------------------------------
                 Structured Emerging      Long-term growth of   Common stocks of          More than   All
                 Markets                  capital               companies located in,     300         capitalizations
                                                                or whose principal
                                                                business operations are
                                                                based in, emerging
                                                                markets
                 -----------------------------------------------------------------------------------------------------------
                 Tax-Efficient Structured Long-term growth of   Common stocks of          More than   All
                 Emerging Markets         capital. The Fund     companies located in,     300         capitalizations
                                          also seeks to achieve or whose principal
                                          higher after-tax      business operations are
                                          returns for its       based in, emerging
                                          shareholders by using markets
                                          a variety of tax-
                                          efficient management
                                          strategies
 ---------------------------------------------------------------------------------------------------------------------------
  Sector-Related Innovation               Capital appreciation; Common stocks of          40          More than $200 million
  Stock Funds                             no                    technology-related
                                          consideration is      companies with market
                                          given to income       capitalizations of more
                                                                than $200 million
</TABLE>


                                                                   Prospectus 24
<PAGE>


Underlying  The investment objective of each Underlying Bond Fund (except as
Bond        provided below) is to seek to realize maximum total return,
Funds       consistent with preservation of capital and prudent investment
            management. The "total return" sought by most of the Underlying
            Bond Funds will consist of income earned on the Fund's
            investments, plus capital appreciation, if any, which generally
            arises from decreases in interest rates or improving credit
            fundamentals for a particular sector or security. 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 a measure of
            the change in purchasing power of money invested in a particular
            investment after adjusting 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 main
            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 Distributor at
            1-800-426-0107.

<TABLE>
<CAPTION>
                PIMCO Fund        Main Investments           Duration                        Credit Quality(/1/)
              -----------------------------------------------------------------------------------------------------------
 <C>            <C>               <S>                        <C>                             <C>
 Short          Money Market      Money market instruments   (less than or =)90 days dollar- Min 95% Aaa or Prime 1;
 Duration Bond                                               weighted                        (less than or =)5% Aa or Prime 2
 Funds                                                       average maturity
                      ---------------------------------------------------------------------------------------------
                Short-Term        Money market instruments   0-1 yr                          B to Aaa; max 10%
                                  and                                                        below Baa
                                  short maturity
                                  fixed income
                                  securities
                      ---------------------------------------------------------------------------------------------
                Low Duration      Short maturity             1-3 yrs                         B to Aaa; max 10%
                                  fixed income                                               below Baa
                                  securities
              -----------------------------------------------------------------------------------------------------------
 Intermediate   Moderate Duration Short and                  2-5 yrs                         B to Aaa; max 10%
 Duration                         intermediate                                               below Baa
 Bond Funds                       maturity
                                  fixed income
                                  securities
                      ---------------------------------------------------------------------------------------------
                Total Return      Intermediate               3-6 yrs                         B to Aaa; max 10%
                                  maturity fixed                                             below Baa
                                  income
                                  securities
                      ---------------------------------------------------------------------------------------------
                Total Return II   Intermediate               3-6 yrs                         Baa to Aaa
                                  maturity fixed
                                  income
                                  securities with
                                  quality
                                  and non-U.S.
                                  issuer
                                  restrictions
              -----------------------------------------------------------------------------------------------------------
 Long Duration  Long-Term U.S.    Long-term                  (greater than or =)8 yrs        A to Aaa
 Bond Funds     Government        maturity fixed
                                  income
                                  securities
              -----------------------------------------------------------------------------------------------------------
 International  Global Bond       U.S. and non-              3-7 yrs                         B to Aaa; max 10%
 Bond Funds                       U.S.                                                       below Baa
                                  intermediate
                                  maturity fixed
                                  income
                                  securities
                      ---------------------------------------------------------------------------------------------
                Foreign Bond      Intermediate               3-7 yrs                         B to Aaa; max 10%
                                  maturity hedged                                            below Baa
                                  non-U.S. fixed
                                  income
                                  securities
                      ---------------------------------------------------------------------------------------------
                Emerging Markets  Emerging market            0-8 yrs                         B to Aaa
                Bond              fixed income
                                  securities
              -----------------------------------------------------------------------------------------------------------
 High Yield     High Yield        Higher yielding            2-6 yrs                         B to Aaa; min 65%
 Bond Funds                       fixed income                                               below Baa
                                  securities
              -----------------------------------------------------------------------------------------------------------
 Inflation      Real Return Bond  Inflation-                 N/A                             B to Aaa; max 10%
 Indexed Bond                     indexed fixed                                              below Baa
 Funds                            income
                                  securities
<CAPTION>
                            Non-U.S. Dollar
                            Denominated
                            Securities(/2/)
              -----------------------------------------------------------------------------------------------------------
                            <C>
                            0%
                      ---------------------------------------------------------------------------------------------
                            0-5%
                      ---------------------------------------------------------------------------------------------
                            0-20%
              -----------------------------------------------------------------------------------------------------------
                            0-20%
                      ---------------------------------------------------------------------------------------------
                            0-20%
                      ---------------------------------------------------------------------------------------------
                            0%
              -----------------------------------------------------------------------------------------------------------
                            0%
              -----------------------------------------------------------------------------------------------------------
                            25-75%
                      ---------------------------------------------------------------------------------------------
                            (greater than or =)85%
                      ---------------------------------------------------------------------------------------------
                            (greater than or =)80%
              -----------------------------------------------------------------------------------------------------------
                            0-15%
              -----------------------------------------------------------------------------------------------------------
                            0-20%
</TABLE>
             1. As rated by Moody's Investors Service, Inc., or equivalently
                rated by Standard & Poor's Rating Services, or if unrated, de-
                termined by Pacific Investment Management Company to be of com-
                parable quality.
             2. Percentage limitations relate to non-U.S. dollar-denominated
                securities for all Underlying Bond Funds except PIMCO Global
                Bond, Foreign Bond and Emerging Markets Bond Funds. Percentage
                limitations for these three Funds relate to securities of non-
                U.S. issuers, denominated in any currency. For the PIMCO High
                Yield Fund, the percentage limitation relates to euro-denomi-
                nated securities. Each Underlying 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 non-U.S.
                issuers.

              Each Underlying Bond Fund invests 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, event-linked bonds and loan participations; delayed
            funding loans and revolving

25 PIMCO Funds: Multi-Manager Series
<PAGE>

            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 other
            government-sponsored enterprises; obligations of non-U.S.
            governments or their subdivisions, agencies and government-
            sponsored enterprises; and obligations of international agencies
            or supranational entities.

Other       In addition to purchasing the securities listed above under "Main
Investment  Investments," some or all of the Underlying Funds may to varying
Practices   extents: lend portfolio securities; enter into repurchase
of the      agreements and reverse repurchase agreements; purchase and sell
Underlying  securities on a when-issued or delayed delivery basis; enter into
Funds       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 Distributor at 1-800-
            426-0107.

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

            Other Risk Information

Potential   PIMCO Advisors has broad discretion to allocate and reallocate the
Conflicts   Portfolios' assets among the Underlying Funds consistent with the
of          Portfolios' investment objectives and policies and asset
Interest    allocation targets and ranges. 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 of the Trust.

                                                                   Prospectus 26
<PAGE>

            Management of the Portfolios

Investment  PIMCO Advisors serves as the investment adviser and the
Adviser     administrator (serving in its capacity as administrator, the
and         "Administrator") for the Portfolios. Subject to the supervision of
Admini-     the Board of Trustees, PIMCO Advisors is responsible for managing,
strator     either directly or through others selected by it, the investment
            activities of the Portfolios and the Portfolios' business affairs
            and other administrative matters.

              PIMCO Advisors is located at 800 Newport Center Drive, Newport
            Beach, California 92660. Organized in 1987, PIMCO Advisors
            provides investment management and advisory services to private
            accounts of institutional and individual clients and to mutual
            funds. As of September 30, 2000, PIMCO Advisors and its subsidiary
            partnerships had approximately $272 billion in assets under
            management.

              PIMCO Advisors has retained its affiliate, Pacific Investment
            Management Company, to provide various administrative and other
            services required by the Portfolios in its capacity as sub-
            administrator. PIMCO Advisors and the sub-administrator may retain
            other affiliates to provide certain of these services.

Asset       PIMCO Advisors selects the Underlying Funds in which the
Allocation  Portfolios may invest. PIMCO Advisors' Asset Allocation Committee
Committee   is responsible for determining how the Portfolios' assets are
            allocated and reallocated from time-to-time among the Underlying
            Funds selected by PIMCO Advisors. The following provides
            information about the individuals who comprise the Asset
            Allocation Committee and are primarily responsible for making
            asset allocation and other investment decisions for the
            Portfolios.

<TABLE>
<CAPTION>
          Asset Allocation
          Committee Member   Since     Recent Professional Experience
            ----------------------------------------------------------------------------------------------
          <C>                <C>       <S>
          Udo Frank          May, 2000 Managing Director and Chief Investment Officer of Allianz Asset
                                       Advisory and Management GmbH, responsible for the entire investment
                                       area (since 1997), and Chief Executive Officer and Chief Investment
                                       Officer of Allianz PIMCO Asset Management. Previously, he served as
                                       the Chief Investment Officer of Allianz KAG since 1994.
          Kenneth W.         May, 2000 Managing Director and Chief Investment Officer of the PIMCO Equity
          Corba                        Advisors Division of PIMCO Advisors and a Member of the Management
                                       Board of PIMCO Advisors. Prior to joining PIMCO Advisors, he was
                                       with Eagle Asset Management from 1995 to 1998, serving in various
                                       capacities including as Chief Investment Officer and Portfolio
                                       Manager. He was with Stein Roe & Farnham Inc. from 1984 to 1995,
                                       serving in various capacities including as Director of the Capital
                                       Management Group, Senior Vice President and Portfolio Manager.
          Colin Glinsman     May, 2000 Chief Investment Officer of Oppenheimer Capital since 1999.
                                       Previously, he served as a portfolio manager and research analyst
                                       at Oppenheimer Capital from 1989 to 1999.
          John Hague         May, 2000 Managing Director of Pacific Investment Management Company LLC,
                                       where he is a member of the Executive Committee and a senior member
                                       of the Portfolio Management and Investment Strategy Groups. He
                                       joined Pacific Investment Management Company LLC in 1987.
          John Loftus        May, 2000 Managing Director of Pacific Investment Management Company LLC,
                                       where he is a senior member of its Investment Strategy Group. He
                                       also heads the firm's product management area. He joined Pacific
                                       Investment Management Company LLC in 1986.
</TABLE>

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 their proportionate share
            of the advisory fees paid to PIMCO Advisors and Pacific Investment
            Management Company by the Underlying Funds in which the Portfolios
            invest. See "Underlying Fund Expenses" below.

Administrative
Fees
            Each Portfolio pays for the administrative services it requires
            under a fee structure which is essentially fixed. Class A, Class B
            and Class C shareholders of each Portfolio pay an administrative
            fee to PIMCO Advisors, computed as a percentage of the Portfolio's
            assets attributable in the aggregate to those classes of shares.
            PIMCO Advisors, in turn, provides or procures administrative
            services for Class A, Class B and Class C shareholders and also
            bears the costs of most third-party services required by the
            Portfolios, including audit, custodial, portfolio accounting,
            legal, transfer agency and printing costs. The Portfolios do bear
            other expenses which are not covered under the administrative fee
            which may vary and affect the total level of expenses paid by
            Class A, Class B and Class C shareholders, such as brokerage fees,
            commissions and other transaction expenses, costs of borrowing
            money, including interest expenses, and fees and expenses of the
            Trust's disinterested Trustees.

              Each Portfolio pays monthly administrative fees to PIMCO
            Advisors at an annual rate of 0.40% based on the average daily net
            assets attributable in the aggregate to the Portfolio's Class A,
            Class B

27 PIMCO Funds: Multi-Manager Series
<PAGE>

            and Class C shares up to $2.5 billion, and 0.35% based on such
            average daily net assets in excess of $2.5 billion. The Portfolios
            also indirectly pay their proportionate share of the
            administrative fees charged by PIMCO Advisors and Pacific
            Investment Management Company to the Underlying Funds in which the
            Portfolios invest. See "Underlying Fund Expenses" below.

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 Portfolios are structured in the following ways to lessen
            the impact of expenses incurred at the Underlying Fund level:

            . The Portfolios do not pay any fees for asset allocation or
              advisory services under the Trust's investment advisory
              agreement.

            . The Underlying Funds invest in Institutional Class shares of the
              Underlying Funds, which are not subject to any sales charges or
              12b-1 fees.

              The following table summarizes the annual expenses borne by
            Institutional Class shareholders of the Underlying Funds (based on
            estimates for the current fiscal year). Because the Portfolios
            invest in 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
            "Fees and Expenses of the Portfolio" in each Portfolio Summary
            above.
<TABLE>
<CAPTION>
                                    Annual Underlying Fund Expenses
                                    (Based on the average daily net assets
                                    attributable to a Fund's Institutional Class
                                    shares):
                                    Advisory Admini-       Other    Total Fund
           Underlying Fund          Fees     strative Fees Expenses Operating Expenses
               -----------------------------------------------------------------------
           <S>                      <C>      <C>           <C>      <C>
           PIMCO Growth             0.50%    0.25%         0.02%    0.77%
               -----------------------------------------------------------------------
           PIMCO Target             0.55     0.25          0.01     0.81
               -----------------------------------------------------------------------
           PIMCO Opportunity        0.65     0.25          0.01     0.91
               -----------------------------------------------------------------------
           PIMCO Capital
            Appreciation            0.45     0.25          0.01     0.71
               -----------------------------------------------------------------------
           PIMCO Mid-Cap            0.45     0.25          0.01     0.71
               -----------------------------------------------------------------------
           PIMCO Micro-Cap          1.25     0.25          0.01     1.51
               -----------------------------------------------------------------------
           PIMCO Equity Income      0.45     0.25          0.02     0.72
               -----------------------------------------------------------------------
           PIMCO Renaissance        0.60     0.25          0.00     0.85
               -----------------------------------------------------------------------
           PIMCO Value              0.45     0.25          0.00     0.70
               -----------------------------------------------------------------------
           PIMCO Small-Cap Value    0.60     0.25          0.01     0.86
               -----------------------------------------------------------------------
           PIMCO Tax-Efficient
            Equity                  0.45     0.25          0.01     0.71
               -----------------------------------------------------------------------
           PIMCO Enhanced Equity    0.45     0.25          0.01     0.71
               -----------------------------------------------------------------------
           PIMCO StocksPLUS         0.40     0.25          0.00     0.65
               -----------------------------------------------------------------------
           PIMCO International      0.55     0.50          0.08     1.13
               -----------------------------------------------------------------------
           PIMCO Allianz Select
            International           0.75     0.50          0.00     1.25
               -----------------------------------------------------------------------
           PIMCO Structured
            Emerging Markets        0.45     0.50          0.29     1.24
               -----------------------------------------------------------------------
           PIMCO Tax-Efficient
            Structured Emerging
            Markets                 0.45     0.50          0.05     1.00
               -----------------------------------------------------------------------
           PIMCO Innovation         0.65     0.25          0.00     0.90
               -----------------------------------------------------------------------
           PIMCO Money Market       0.15     0.20          0.00     0.35
               -----------------------------------------------------------------------
           PIMCO Short-Term         0.25     0.20          0.19     0.64
               -----------------------------------------------------------------------
           PIMCO Low Duration       0.25     0.18          0.08     0.51
               -----------------------------------------------------------------------
           PIMCO Moderate Duration  0.25     0.20          0.02     0.47
               -----------------------------------------------------------------------
           PIMCO Total Return       0.25     0.18          0.11     0.54
               -----------------------------------------------------------------------
           PIMCO Total Return II    0.25     0.25          0.00     0.50
               -----------------------------------------------------------------------
           PIMCO Long-Term U.S.
            Government              0.25     0.25          0.07     0.57
               -----------------------------------------------------------------------
           PIMCO Global Bond        0.25     0.30          0.16     0.71
               -----------------------------------------------------------------------
           PIMCO Foreign Bond       0.25     0.25          0.19     0.69
               -----------------------------------------------------------------------
           PIMCO Emerging Markets
            Bond                    0.45     0.40          0.04     0.89
               -----------------------------------------------------------------------
           PIMCO High Yield         0.25     0.25          0.00     0.50
               -----------------------------------------------------------------------
           PIMCO Real Return Bond   0.25     0.25          0.03     0.53
</TABLE>

                                                                   Prospectus 28
<PAGE>

Distributor The Trust's Distributor is PIMCO Funds Distributors LLC, a wholly
            owned subsidiary of PIMCO Advisors. The Distributor, located at
            2187 Atlantic Street, Stamford, CT 06902, is a broker-dealer
            registered with the Securities and Exchange Commission.

            Investment Options -- Class A, B and C Shares

            The Trust offers investors Class A, Class B and Class C shares of
            each Portfolio in this Prospectus. Each class of shares is subject
            to different types and levels of sales charges than the other
            classes and bears a different level of expenses.

             The class of shares that is best for you depends upon a number of
            factors, including the amount and the intended length of your
            investment. The following summarizes key information about each
            class to help you make your investment decision, including the
            various expenses associated with each class. More extensive
            information about the Trust's multi-class arrangements is included
            in the PIMCO Funds Shareholders' Guide for Class A, B and C Shares
            (the "Guide"), which is included as part of the Statement of
            Additional Information and can be obtained free of charge from the
            Distributor. See "How to Buy and Sell Shares--PIMCO Funds
            Shareholders' Guide" below.

Class A     .   You pay an initial sales charge of up to 5.50% when you buy
Shares          Class A shares. The sales charge is deducted from your
                investment so that not all of your purchase payment is
                invested.

            .   You may be eligible for a reduction or a complete waiver of
                the initial sales charge under a number of circumstances. For
                example, you normally pay no sales charge if you purchase
                $1,000,000 or more of Class A shares. Please see the Guide for
                details.

            .   Class A shares are subject to lower 12b-1 fees than Class B or
                Class C shares. Therefore, Class A shareholders generally pay
                lower annual expenses and receive higher dividends than Class
                B or Class C shareholders.

            .   You normally pay no contingent deferred sales charge ("CDSC")
                when you redeem Class A shares, although you may pay a 1% CDSC
                if you purchase $1,000,000 or more of Class A shares (and
                therefore pay no initial sales charge) and then redeem the
                shares during the first 18 months after your initial purchase.
                The Class A CDSC is waived for certain categories of investors
                and does not apply if you are otherwise eligible to purchase
                Class A shares without a sales charge. Please see the Guide
                for details.

Class B     .   You do not pay an initial sales charge when you buy Class B
Shares          shares. The full amount of your purchase payment is invested
                initially.

            .  You normally pay a CDSC of up to 5% if you redeem Class B
               shares during the first six years after your initial purchase.
               The amount of the CDSC declines the longer you hold your Class
               B shares. You pay no CDSC if you redeem during the seventh year
               and thereafter. The Class B CDSC is waived for certain
               categories of investors. Please see the Guide for details.

            .  Class B shares are subject to higher 12b-1 fees than Class A
               shares for the first seven years they are held. During this
               time, Class B shareholders normally pay higher annual expenses
               and receive lower dividends than Class A shareholders.

            .  Class B shares automatically convert into Class A shares after
               they have been held for seven years. After the conversion takes
               place, the shares are subject to the lower 12b-1 fees paid by
               Class A shares.

Class C     .  You do not pay an initial sales charge when you buy Class C
Shares         shares. The full amount of your purchase payment is invested
               initially.

            .  You normally pay a CDSC of 1% if you redeem Class C shares
               during the first year after your initial purchase. The Class C
               CDSC is waived for certain categories of investors. Please see
               the Guide for details.

            .  Class C shares are subject to higher 12b-1 fees than Class A
               shares. Therefore, Class C shareholders normally pay higher
               annual expenses and receive lower dividends than Class A
               shareholders.

            .  Class C shares do not convert into any other class of shares.
               Because Class B shares convert into Class A shares after seven
               years, Class C shares will normally be subject to higher
               expenses and will pay lower dividends than Class B shares if
               the shares are held for more than seven years.

29 PIMCO Funds: Multi-Manager Series
<PAGE>

            The following provides additional information about the sales
            charges and other expenses associated with Class A, Class B and
            Class C shares.

--------------------------------------------------------------------------------
Initial     Unless you are eligible for a waiver, the public offering price
Sales       you pay when you buy Class A shares of the Portfolios is the net
Charges--   asset value ("NAV") of the shares plus an initial sales charge.
Class A     The initial sales charge varies depending upon the size of your
Shares      purchase, as set forth below. No sales charge is imposed where
            Class A shares are issued to you pursuant to the automatic
            reinvestment of income dividends or capital gains distributions.

            90/10 Portfolio and 60/40 Portfolio
<TABLE>
         <S>                    <C>                          <C>
                                Initial Sales Charge         Initial Sales Charge
         Amount of              as % of Net                  as % of Public
         Purchase               Amount Invested              Offering Price
            ---------------------------------------------------------------------
         $0-$49,999             5.82%                        5.50%
            ---------------------------------------------------------------------
         $50,000-$99,999        4.71%                        4.50%
            ---------------------------------------------------------------------
         $100,000-$249,999      3.63%                        3.50%
            ---------------------------------------------------------------------
         $250,000-$499,999      2.56%                        2.50%
            ---------------------------------------------------------------------
         $500,000-$999,999      2.04%                        2.00%
            ---------------------------------------------------------------------
         $1,000,000 +           0.00%*                       0.00%*
            ---------------------------------------------------------------------
</TABLE>

            30/70 Portfolio
<TABLE>
         <S>                    <C>                          <C>
                                Initial Sales Charge         Initial Sales Charge
         Amount of              as % of Net                  as % of Public
         Purchase               Amount Invested              Offering Price
            ---------------------------------------------------------------------
         $0-$49,999             4.71%                        4.50%
            ---------------------------------------------------------------------
         $50,000-$99,999        4.17%                        4.00%
            ---------------------------------------------------------------------
         $100,000-$249,999      3.63%                        3.50%
            ---------------------------------------------------------------------
         $250,000-$499,999      2.56%                        2.50%
            ---------------------------------------------------------------------
         $500,000-$999,999      2.04%                        2.00%
            ---------------------------------------------------------------------
         $1,000,000 +           0.00%*                       0.00%*
            ---------------------------------------------------------------------
</TABLE>

            *As shown, investors that purchase $1,000,000 or more of any
             Portfolio's Class A shares will not pay any initial sales charge
             on the purchase. However, purchasers of $1,000,000 or more of
             Class A shares may be subject to a CDSC of 1% if the shares are
             redeemed during the first 18 months after their purchase. See
             "CDSCs on Class A Shares" below.

--------------------------------------------------------------------------------
Contingent  Unless you are eligible for a waiver, if you sell (redeem) your
Deferred    Class B or Class C shares within the time periods specified below,
Sales       you will pay a CDSC according to the following schedules.
Charges
(CDSCs)
-- Class
B and
Class C
Shares


Class B
Shares
<TABLE>
         <S>                              <C>
         Years Since Purchase             Percentage Contingent
         Payment was Made                 Deferred Sales Charge
            -----------------------------------------------------------------------------
         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.

Class C
Shares
<TABLE>
<CAPTION>
         Years Since Purchase             Percentage Contingent
         Payment was Made                 Deferred Sales Charge
            -----------------------------------------------------------------------------
         <S>                              <C>
         First                            1
            -----------------------------------------------------------------------------
         Thereafter                       0
            -----------------------------------------------------------------------------
        </TABLE>


                                                                   Prospectus 30
<PAGE>

--------------------------------------------------------------------------------
CDSCs on    Unless a waiver applies, investors who purchase $1,000,000 or more
Class A     of Class A shares (and, thus, pay no initial sales charge) will be
Shares      subject to a 1% CDSC if the shares are redeemed within 18 months
            of their purchase. The Class A CDSC does not apply if you are
            otherwise eligible to purchase Class A shares without an initial
            sales charge or if you are eligible for a waiver of the CDSC. See
            "Reductions and Waivers of Initial Sales Charges and CDSCs" below.

--------------------------------------------------------------------------------
How CDSCs   A CDSC is imposed on redemptions of Class B and Class C shares
are         (and where applicable, Class A shares) on the amount of the
Calculated  redemption which causes the current value of your account for the
            particular class of shares of a Portfolio to fall below the total
            dollar amount of your purchase payments subject to the CDSC.
            However, 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 your account above the amount of the purchase
            payments subject to the CDSC. CDSCs are deducted from the proceeds
            of your redemption, not from amounts remaining in your account. In
            determining whether a CDSC is payable, it is assumed that the
            purchase payment from which the redemption is made is the earliest
            purchase payment for the particular class of shares in your
            account (from which a redemption or exchange has not already been
            effected).

             For instance, the following example illustrates 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 Portfolio 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 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 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
            shares of a particular class of a Portfolio in the shareholder's
            account are aggregated, and the current value of all such shares
            is aggregated.

--------------------------------------------------------------------------------
Reductions  The initial sales charges on Class A shares and the CDSCs on Class
and         A, Class B and Class C shares may be reduced or waived under
Waivers     certain purchase arrangements and for certain categories of
of          investors. Please see the Guide for details. The Guide is
Initial     available free of charge from the Distributor. See "How to Buy and
Sales       Sell Shares--PIMCO Funds Shareholders' Guide" below.
Charges
and CDSCs

--------------------------------------------------------------------------------
DistributionThe Portfolios pay fees to the Distributor on an ongoing basis as
and         compensation for the services the Distributor renders and the
Servicing   expenses it bears in connection with the sale and distribution of
(12b-1)     Portfolio shares ("distribution fees") and/or in connection with
Plans       personal services rendered to Portfolio shareholders and the
            maintenance of shareholder accounts ("servicing fees"). These
            payments are made pursuant to Distribution and Servicing Plans
            ("12b-1 Plans") adopted by each Portfolio pursuant to Rule 12b-1
            under the Investment Company Act of 1940.

             There is a separate 12b-1 Plan for each class of shares offered
            in this Prospectus. Class A shares pay only servicing fees. Class
            B and Class C shares pay both distribution and servicing fees. The
            following lists the maximum annual rates at which the distribution
            and/or servicing fees may be paid under each 12b-1 Plan
            (calculated as a percentage of each Portfolio's average daily net
            assets attributable to the particular class of shares):

<TABLE>
         <S>                            <C>                                     <C>
                                        Servicing                               Distribution
         All Portfolios                 Fee                                     Fee
            --------------------------------------------------------------------------------
         Class A                        0.25%                                   None
            --------------------------------------------------------------------------------
         Class B                        0.25%                                   0.75%
            --------------------------------------------------------------------------------
         Class C                        0.25%                                   0.75%
            --------------------------------------------------------------------------------
</TABLE>

             Because 12b-1 fees are paid out of a Portfolio's assets on an
            ongoing basis, over time these fees will increase the cost of your
            investment and may cost you more than sales charges which are
            deducted at the time of investment. Therefore, although Class B
            and Class C shares do not pay initial sales charges, the
            distribution fees payable on Class B and Class C shares may, over
            time, cost you more than the initial sales charge imposed on Class
            A shares. Also, because Class B shares convert into Class A shares
            after they have been held for seven years and are not subject to
            distribution fees after the conversion, an investment in Class C
            shares may cost you more over time than an investment in Class B
            shares.


31 PIMCO Funds: Multi-Manager Series
<PAGE>

            How Portfolio Shares Are Priced

            The net asset value ("NAV") of a Portfolio's Class A, Class B and
            Class C shares is determined by dividing the total value of a
            Portfolio's investments and other assets attributable to that
            class, less any liabilities, by the total number of shares
            outstanding of that class.

             The assets of each Portfolio consist of shares of the Underlying
            Funds, which are valued at their respective NAVs at the time of
            valuation of the Portfolios' shares. For purposes of calculating
            the NAV of Underlying Fund shares, portfolio securities and other
            assets of the Funds for which market quotes are available are
            stated at market value. Market value is generally determined on
            the basis of last reported sales prices, or if no sales are
            reported, based on quotes obtained from a quotation reporting
            system, established market makers, or pricing services. Certain
            securities or investments for which daily market quotes are not
            readily available may be valued, pursuant to procedures
            established by the Board of Trustees of the Underlying Fund, with
            reference to other securities or indices. Short-term investments
            having a maturity of 60 days or less are generally valued at
            amortized cost. Exchange traded options, futures and options on
            futures are valued at the settlement price determined by the
            exchange. Other securities for which market quotes are not readily
            available are valued at fair value as determined in good faith by
            the Fund's Board of Trustees or persons acting at the Board's
            direction.

             Underlying Fund investments initially valued in currencies other
            than the U.S. dollar are converted to U.S. dollars using exchange
            rates obtained from pricing services. As a result, the NAV of an
            Underlying Fund's shares may be affected by changes in the value
            of currencies in relation to the U.S. dollar. The value of
            securities traded in markets outside the United States or
            denominated in currencies other than the U.S. dollar may be
            affected significantly on a day that the New York Stock Exchange
            is closed. As a result, to the extent that a Portfolio invests in
            Underlying Funds that hold foreign securities, the NAV of the
            Portfolio's shares may change at times when you can not purchase,
            redeem or exchange shares.

             Portfolio and Underlying Fund shares are valued at the close of
            regular trading (normally 4:00 p.m., Eastern time) (the "NYSE
            Close") on each day that the New York Stock Exchange is open. For
            purposes of calculating the NAV, the Underlying Funds normally use
            pricing data for domestic equity securities received shortly after
            the NYSE Close and do not normally take into account trading,
            clearances or settlements that take place after the NYSE Close.
            Domestic fixed income and foreign securities are normally priced
            using data reflecting the earlier closing of the principal markets
            for those securities. Information that becomes known to the
            Underlying Funds or their agents after the NAV has been calculated
            on a particular day will not generally be used to retroactively
            adjust the price of a security or the NAV determined earlier that
            day.

             In unusual circumstances, instead of valuing securities in the
            usual manner, the Underlying Funds may value securities at fair
            value or estimate their value as determined in good faith by the
            Fund's Board of Trustees or persons acting at their direction
            pursuant to procedures approved by the Board of Trustees. Fair
            valuation may also be used by the Underlying Fund's Board of
            Trustees if extraordinary events occur after the close of the
            relevant market but prior to the NYSE Close.

            How to Buy and Sell Shares

            The following section provides basic information about how to buy,
            sell (redeem) and exchange shares of the Portfolios.

PIMCO       More detailed information about the Trust's purchase, sale and
Funds       exchange arrangements for Portfolio shares is provided in the
Share-      PIMCO Funds Shareholders' Guide, which is included in the
holders'    Statement of Additional Information and can be obtained free of
Guide       charge from the Distributor by written request or by calling 1-
            800-426-0107. The Guide provides technical information about the
            basic arrangements described below and also describes special
            purchase, sale and exchange features and programs offered by the
            Trust, including:

            .  Automated telephone and wire transfer procedures
            .  Automatic purchase, exchange and withdrawal programs
            .  Programs that establish a link from your Portfolio account to
               your bank account
            .  Special arrangements for tax-qualified retirement plans
            .  Investment programs which allow you to reduce or eliminate the
               initial sales charges on Class A shares
            .  Categories of investors that are eligible for waivers or
               reductions of initial sales charges and CDSCs

                                                                   Prospectus 32
<PAGE>

Calculation When you buy shares of the Portfolios, you pay a price equal to
of Share    the NAV of the shares, plus any applicable sales charge. When you
Price and   sell (redeem) shares, you receive an amount equal to the NAV of
Redemption  the shares, minus any applicable CDSC. NAVs are determined at the
Payments    close of regular trading (normally, 4:00 p.m., Eastern time) on
            the New York Stock Exchange on each day the New York Stock
            Exchange is open. See "How Portfolio Shares Are Priced" above for
            details. Generally, purchase and redemption orders for Portfolio
            shares are processed at the NAV next calculated after your order
            is received by the Distributor. There are certain exceptions where
            an order is received by a broker or dealer prior to the close of
            regular trading on the New York Stock Exchange and then
            transmitted to the Distributor after the NAV has been calculated
            for that day (in which case the order may be processed at that
            day's NAV). Please see the Guide for details.

             The Trust does not calculate NAVs or process orders on days when
            the New York Stock Exchange is closed. If your purchase or
            redemption order is received by the Distributor on a day when the
            New York Stock Exchange is closed, it will be processed on the
            next succeeding day when the New York Stock Exchange is open (at
            the succeeding day's NAV).

Buying      You can buy Class A, Class B or Class C shares of the Portfolios
Shares      in the following ways:

             . Through your broker, dealer or other financial intermediary.
            Your broker, dealer or other intermediary may establish higher
            minimum investment requirements than the Trust and may also
            independently charge you transaction fees and additional amounts
            (which may vary) in return for its services, which will reduce
            your return. Shares you purchase through your broker, dealer or
            other intermediary will normally be held in your account with that
            firm.

             . Directly from the Trust. To make direct investments, you must
            open an account with the Distributor and send payment for your
            shares either by mail or through a variety of other purchase
            options and plans offered by the Trust.

             If you wish to invest directly by mail, please send a check
            payable to PIMCO Funds Distributors LLC, along with a completed
            application form to:

                                    PIMCO Funds Distributors LLC
                                    P.O. Box 9688
                                    Providence, RI 02940-0926

             The Trust accepts all purchases by mail subject to collection of
            checks at full value and conversion into federal funds. You may
            make subsequent purchases by mailing a check to the address above
            with a letter describing the investment or with the additional
            investment portion of a confirmation statement. Checks for
            subsequent purchases should be payable to PIMCO Funds Distributors
            LLC and should clearly indicate your account number. Please call
            the Distributor at 1-800-426-0107 if you have any questions
            regarding purchases by mail.

             The Guide describes a number of additional ways you can make
            direct investments, including through the PIMCO Funds Auto-Invest
            and PIMCO Funds Fund Link programs. You can obtain a Guide free of
            charge from the Distributor by written request or by calling 1-
            800-426-0107. See "PIMCO Funds Shareholders' Guide" above.

             The Distributor, in its sole discretion, may accept or reject any
            order for purchase of Portfolio shares. No share certificates will
            be issued unless specifically requested in writing.

Investment  The following investment minimums apply for purchases of Class A,
Minimums    Class B and Class C shares:

<TABLE>
<CAPTION>
                     Initial Investment                 Subsequent Investments
                     ------------------                 ----------------------
                     <S>                                <C>
                     $2,500 per Portfolio                 $100 per Portfolio
</TABLE>

             Lower minimums may apply for certain categories of investors,
            including certain tax-qualified retirement plans, and for special
            investment programs and plans offered by the Trust, such as the
            PIMCO Funds Auto-Invest and PIMCO Funds Fund Link programs. Please
            see the Guide for details.

Small       Because of the disproportionately high costs of servicing accounts
Account     with low balances, if you have a direct account with the
Fee         Distributor, you will be charged a fee at the annual rate of $16
            if your account balance for any Portfolio falls below a minimum
            level of $2,500, except for Uniform Gift to Minors, IRA, Roth IRA
            and Auto-Invest accounts for which the limit is $1,000. The fee
            also applies 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

33 PIMCO Funds: Multi-Manager Series
<PAGE>

            apply to IRAs, Roth IRAs and other retirement accounts.) However,
            you will not be charged this fee if the aggregate value of all of
            your PIMCO Funds accounts is at least $50,000. Any applicable
            small account fee will be deducted automatically from your below-
            minimum Portfolio account in quarterly installments and paid to
            the Administrator. Each Portfolio account will normally be valued,
            and any deduction taken, during the last five business days of
            each calendar quarter. Lower minimum balance requirements and
            waivers of the small account fee apply for certain categories of
            investors. Please see the Guide for details.

Minimum     Due to the relatively high cost to the Portfolios of maintaining
Account     small accounts, you are asked to maintain an account balance in
Size        each Portfolio in which you invest of at least the minimum
            investment necessary to open the particular type of account. If
            your balance for any Portfolio remains below the minimum for three
            months or longer, the Administrator has the right (except in the
            case of employer-sponsored retirement accounts) to redeem your
            remaining shares and close that Portfolio account after giving you
            60 days to increase your balance. Your Portfolio account will not
            be liquidated if the reduction in size is due solely to a decline
            in market value of your Portfolio shares or if the aggregate value
            of all your PIMCO Funds accounts exceeds $50,000.

Exchanging  You may exchange your Class A, Class B or Class C shares of any
Shares      Portfolio for the same Class of shares of any other Portfolio or
            of another series of the Trust or PIMCO Funds: Pacific Investment
            Management Series, subject to any restrictions on exchanges set
            forth in the applicable fund's or series' prospectus(es). Shares
            are exchanged on the basis of their respective NAVs next
            calculated after your exchange order is received by the
            Distributor. Currently, the Trust does not charge any exchange
            fees or charges. Exchanges are subject to the $2,500 minimum
            initial purchase requirements for each Portfolio, except with
            respect to tax-qualified programs and exchanges effected through
            the PIMCO Funds Auto-Exchange plan. In addition, an exchange is
            generally a taxable event which will generate capital gains or
            losses, and special rules may apply in computing tax basis when
            determining gain or loss. If you maintain your account with the
            Distributor, you may exchange shares by completing a written
            exchange request and sending it to PIMCO Funds Distributors LLC,
            P.O. Box 9688, Providence, RI 02940-0926. You can get an exchange
            form by calling the Distributor at 1-800-426-0107.

             The Trust reserves the right to refuse exchange purchases if, in
            the judgment of PIMCO Advisors, 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 PIMCO Advisors 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 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 has no current intention of terminating
            or modifying the exchange privilege other than as set forth in the
            preceeding sentence, it reserves the right to do so at any time.
            Except as otherwise permitted by the Securities and Exchange
            Commission, the Trust will give you 60 days' advance notice if it
            exercises its right to terminate or materially modify the exchange
            privilege with respect to Class A, B and C shares.

             The Guide provides more detailed information about the exchange
            privilege, including the procedures you must follow and additional
            exchange options. You can obtain a Guide free of charge from the
            Distributor by written request or by calling 1-800-426-0107. See
            "PIMCO Funds Shareholders' Guide" above.

Selling     You can sell (redeem) Class A, Class B or Class C shares of the
Shares      Portfolios in the following ways:

              . Through your broker, dealer or other financial intermediary.
            Your broker, dealer or other intermediary may independently charge
            you transaction fees and additional amounts (which may vary) in
            return for its services, which will reduce your return.

              . Directly from the Trust by Written Request. To redeem shares
            directly from the Trust by written request (whether or not the
            shares are represented by certificates), you must send the
            following items to the Trust's Transfer Agent, PFPC, 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 Transfer
              Agent's records, including fiduciary titles, if any, and
              specifying the account number and the dollar amount or number of
              shares to be redeemed;

                                                                   Prospectus 34
<PAGE>

              (2) for certain redemptions described below, a guarantee of all
              signatures on the written request or on the share certificate or
              accompanying stock power, if required, as described under
              "Signature Guarantee" below;

              (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 requested
            by and payable to all shareholders of record for the account that
            is to be sent to the address of record for that account. To avoid
            delay in redemption or transfer, if you have any questions about
            these requirements you should contact the Transfer Agent in
            writing or call 1-800-426-0107 before submitting a request.
            Written redemption or transfer requests will not be honored until
            all required documents in the proper form have been received by
            the Transfer Agent. You can not redeem your shares by written
            request to the Trust if they are held in broker "street name"
            accounts--you must redeem through your broker.

             If the proceeds of your redemption (i) are to be paid to a person
            other than the record owner, (ii) are to be sent to an address
            other than the address of the account on the Transfer Agent's
            records, or (iii) are to be paid to a corporation, partnership,
            trust or fiduciary, the signature(s) on the redemption request and
            on the certificates, if any, or stock power must be guaranteed as
            described under "Signature Guarantee" below. The Distributor may,
            however, waive the signature guarantee requirement for redemptions
            up to $2,500 by a trustee of a qualified retirement plan, the
            administrator for which has an agreement with the Distributor.

             The Guide describes a number of additional ways you can redeem
            your shares, including:

              . Telephone requests to the Transfer Agent
              . PIMCO Funds Automated Telephone System (ATS)
              . Expedited wire transfers
              . Automatic Withdrawal Plan
              . PIMCO Funds Fund Link

             Unless you specifically elect otherwise, your initial account
            application permits you to redeem shares by telephone subject to
            certain requirements. To be eligible for ATS, expedited wire
            transfer, Automatic Withdrawal Plan, and Fund Link privileges, you
            must specifically elect the particular option on your account
            application and satisfy certain other requirements. The Guide
            describes each of these options and provides additional
            information about selling shares. You can obtain a Guide free of
            charge from the Distributor by written request or by calling 1-
            800-426-0107.

             Other than an applicable CDSC, you will not pay any special fees
            or charges to the Trust or the Distributor when you sell your
            shares. However, if you sell your shares through your broker,
            dealer or other financial intermediary, that firm may charge you a
            commission or other fee for processing your redemption request.

             Redemptions of Portfolio shares may be suspended when trading on
            the New York Stock Exchange is restricted or during an emergency
            which makes it impracticable for the Portfolios or the Underlying
            Funds to dispose of their securities or to determine fairly the
            value of their net assets, or during any other period as permitted
            by the Securities and Exchange Commission for the protection of
            investors. Under these and other unusual circumstances, the Trust
            may suspend redemptions or postpone payments for more than seven
            days, as permitted by law.

Timing of
Redemption
Payments
            Redemption proceeds will normally be mailed to the redeeming
            shareholder within seven calendar 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 proceeds 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. Under unusual circumstances, the Trust
            may delay your redemption payments for more than seven days, as
            permitted by law.

35 PIMCO Funds: Multi-Manager Series
<PAGE>

Redemptions The Trust has agreed to redeem shares of each Portfolio solely in
In Kind     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 may 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. If your shares are redeemed in kind,
            you may incur transaction costs upon the disposition of the
            securities received in the distribution.

CertificatedIf you are redeeming shares for which certificates have been
Shares      issued, the 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 "Signature Guarantee" below. The
            Trust may request further documentation from institutions or
            fiduciary accounts, such as corporations, custodians (e.g., under
            the Uniform Gifts to Minors Act), executors, administrators,
            trustees or guardians. Your redemption request and stock power
            must be signed exactly as the account is registered, including
            indication of any special capacity of the registered owner.

Signature   When a signature guarantee is called for, you should have
Guarantee   "Signature Guaranteed" stamped under your signature and guaranteed
            by any of the following entities: U.S. banks, foreign banks having
            a U.S. correspondent bank, credit unions, savings associations,
            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 guarantee
            pursuant to its written signature guarantee standards or
            procedures, which may permit it to reject signature guarantees
            from Eligible Guarantor Institutions that do not, based on credit
            guidelines, satisfy such written standards or procedures.

            Beginning January 1, 2001, when a signature guarantee is called
            for, a "medallion" signature guarantee will be required. A
            medallion signature guarantee may be obtained from a domestic bank
            or trust company, broker, dealer, clearing agency, savings
            association or other financial institution which is participating
            in a medallion program recognized by the Securities Transfer
            Association. The three recognized medallion programs are the
            Securities Transfer Agents Medallion Program (STAMP), Stock
            Exchanges Medallion Program (SEMP) and New York Stock Exchange,
            Inc. Medallion Signature Program (NYSE MSP). Signature guarantees
            from financial institutions which are not participating in a
            recognized medallion program may still be ineligible to provide a
            signature guarantee for transactions of greater than a specified
            dollar amount. The Trust may change the signature guarantee
            requirements from time to time upon notice to shareholders, which
            may be given by means of a new or supplemented Prospectus or a new
            or supplemented Guide. Shareholders should contact the Distributor
            for additional details regarding the Portfolios' signature
            guarantee requirements.

            Portfolio Distributions

            Each Portfolio distributes substantially all of its net investment
            income to shareholders in the form of dividends. You begin earning
            dividends on Portfolio shares the day after the Trust receives
            your purchase payment. 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 expected to be lower than dividends on Class A shares as a
            result of the distribution fees applicable to Class B and Class C
            shares. The following shows when each Portfolio intends to declare
            and distribute income dividends to shareholders of record.

<TABLE>
<CAPTION>
          Portfolio             At Least Annually           Quarterly           Monthly
            ---------------------------------------------------------------------------
         <S>                    <C>                         <C>                 <C>
          90/10 Portfolio               .
            ---------------------------------------------------------------------------
          60/40 Portfolio                                       .
            ---------------------------------------------------------------------------
          30/70 Portfolio                                                          .
            ---------------------------------------------------------------------------
</TABLE>

             In addition, each Portfolio distributes any net capital gains it
            earns from the sale of portfolio securities to shareholders no
            less frequently than annually. Net short-term capital gains may be
            paid more frequently.

                                                                   Prospectus 36
<PAGE>

             You can choose from the following distribution options:

            .  Reinvest all distributions in additional shares of the same
               class of your Portfolio at NAV. This will be done unless you
               elect another option.

            .  Invest all distributions in shares of the same class of any
               other Portfolio or another series of the Trust or PIMCO Funds:
               Pacific Investment Management Series which offers that class at
               NAV. You must have an account existing in the Portfolio or
               series selected for investment with the identical registered
               name. You must elect this option on your account application or
               by a telephone request to the Transfer Agent at 1-800-426-0107.

            .  Receive all distributions in cash (either paid directly to you
               or credited to your account with your broker or other financial
               intermediary). You must elect this option on your account
               application or by a telephone request to the Transfer Agent at
               1-800-426-0107.

             You do not pay any sales charges on shares you receive through
            the reinvestment of Portfolio distributions.

             If you elect to receive Portfolio distributions in cash and the
            postal or other delivery service is unable to deliver checks to
            your address of record, the Trust's Transfer Agent will hold the
            returned checks for your benefit in a non-interest bearing
            account.

             For further information on distribution options, please contact
            your broker or call the Distributor at 1-800-426-0107.

            Tax Consequences

             . Taxes on Portfolio distributions. If you are subject to U.S.
            federal income tax, you will be subject to tax on Portfolio
            distributions whether you received them in cash or reinvested them
            in additional shares. For federal income tax purposes, Portfolio
            distributions will be taxable to you as either ordinary income or
            capital gains.

             Portfolio dividends (i.e., distributions of investment income)
            are taxable to you as ordinary income. Federal taxes on Portfolio
            distributions of gains are determined by how long the Portfolio
            owned the investments that generated the gains, rather than how
            long you have owned your shares. Distributions of gains from
            investments that a Portfolio owned for more than 12 months will
            generally be taxable to you as capital gains. Distributions of
            gains from investments that the Portfolio owned for 12 months or
            less will generally be taxable to you as ordinary income.

             Portfolio distributions are taxable to you even if they are paid
            from income or gains earned by a Portfolio prior to your
            investment and thus were included in the price you paid for your
            shares. For example, if you purchase shares on or just before the
            record date of a Portfolio distribution, you will pay full price
            for the shares and may receive a portion of your investment back
            as a taxable distribution.

             The Portfolios' use of a fund of funds structure could affect the
            amount, timing and character of distributions to shareholders. See
            "Taxation--Distributions" in the Statement of Additional
            Information.

             . Taxes when you sell (redeem) or exchange your shares. Any gain
            resulting from the sale of Portfolio shares will generally be
            subject to federal income tax. When you exchange shares of a
            Portfolio for shares of another Portfolio or series of the Trust,
            the transaction will be treated as a sale of the first Portfolio's
            shares for these purposes, and any gain on those shares will
            generally be subject to federal income tax.

             This section relates only to federal income tax consequences of
            investing in the Portfolios; the consequences under other tax laws
            may differ. You should consult your tax advisor as to the possible
            application of foreign, state and local income tax laws to
            Portfolio dividends and capital distributions. Please see the
            Statement of Additional Information for additional information
            regarding the tax aspects of investing in the Portfolios.


37 PIMCO Funds: Multi-Manager Series
<PAGE>




                      (This page left blank intentionally)




                                                                   Prospectus 38
<PAGE>

            Financial Highlights

            The financial highlights table is intended to help you understand
            the financial performance of Class A, Class B and Class C shares
            of each Portfolio since the class of shares was first offered.
            Certain information reflects financial results for a single
            Portfolio share. The total returns in the table represent the rate
            that an investor would have earned or lost on an investment in a
            particular class of shares of a Portfolio, assuming reinvestment
            of all dividends and distributions. This information has been
            audited by PricewaterhouseCoopers LLP, whose report, along with
            each Portfolio's financial statements, are included in the Trust's
            annual report to shareholders. The annual report is incorporated
            by reference in the Statement of Additional Information and is
            available free of charge upon request from the Distributor.


<TABLE>
<CAPTION>
                                               Net Realized/                   Dividends  Dividends in
 Year or         Net Asset Value      Net        Unrealized    Total Income    From Net   Excess of Net
 Period             Beginning     Investment   Gain (Loss) on From Investment Investment   Investment
 Ended              of Period    Income (Loss)  Investments     Operations      Income       Income
-------------------------------------------------------------------------------------------------------
<S>              <C>             <C>           <C>            <C>             <C>         <C>
90/10 Portfolio
 Class A
 06/30/00            $12.17        $0.52(a)       $0.84(a)         $1.36        $(0.16)      $ 0.00
 06/30/99(b)          10.00         0.16(a)        2.19(a)          2.35         (0.15)       (0.03)
 Class B
 06/30/00             12.11         0.42(a)        0.84(a)          1.26         (0.11)        0.00
 06/30/99(b)          10.00         0.16(a)        2.13(a)          2.29         (0.15)       (0.03)
 Class C
 06/30/00             12.11         0.42(a)        0.83(a)          1.25         (0.12)        0.00
 06/30/99(b)          10.00         0.07(a)        2.22(a)          2.29         (0.15)       (0.03)

60/40 Portfolio
 Class A
 06/30/00            $11.27        $0.56(a)       $0.44(a)         $1.00        $(0.35)      $ 0.00
 06/30/99(b)          10.00         0.31(a)        1.23(a)          1.54         (0.27)        0.00
 Class B
 06/30/00             11.25         0.48(a)        0.44(a)          0.92         (0.27)        0.00
 06/30/99(b)          10.00         0.16(a)        1.31(a)          1.47         (0.22)        0.00
 Class C
 06/30/00             11.24         0.48(a)        0.44(a)          0.92         (0.26)        0.00
 06/30/99(b)          10.00         0.18(a)        1.29(a)          1.47         (0.23)        0.00

30/70 Portfolio
 Class A
 06/30/00            $10.33        $0.58(a)       $0.10(a)         $0.68        $(0.47)      $ 0.00
 06/30/99(b)          10.00         0.58(a)        0.11(a)          0.69         (0.36)        0.00
 Class B
 06/30/00             10.32         0.50(a)        0.11(a)          0.61         (0.39)        0.00
 06/30/99(b)          10.00         0.32(a)        0.31(a)          0.63         (0.31)        0.00
 Class C
 06/30/00             10.30         0.50(a)        0.11(a)          0.61         (0.39)        0.00
 06/30/99(b)          10.00         0.26(a)        0.36(a)          0.62         (0.32)        0.00
</TABLE>

-------
* Annualized
 (a) Per share amounts based upon average number of shares outstanding during
     the period.
 (b) Commenced operations on September 30, 1998.

39 PIMCO Funds: Multi-Manager Series
<PAGE>




<TABLE>
<CAPTION>
Ditributionss                                                                                 Ratio of Net
    from                                                                         Ratio of      Investment
 NteRealized                           Net Asset                                Expenses to Income (Loss) to
  Capital                  Total     Value End of               Net Assets End  Average Net   Average Net      Portfolio
   Gains               Distributions     Period   Total Return of Period (000s)   Assets         Assets      Turnover Rate
  ------------------------------------------------------------------------------------------------------------------------

<S>                  <C>           <C>          <C>          <C>              <C>         <C>              <C>
           $(0.59)       $(0.75       $12.78       11.48%        $ 1,161         0.65%         4.16%            18%
             0.00         (0.18)       12.17       23.69             647         0.65*         1.91*            48

            (0.59)        (0.70)       12.67       10.68           2,610         1.40          3.41             18
             0.00         (0.18)       12.11       23.03           1,920         1.40*         1.87*            48

            (0.59)        (0.71)       12.65       10.58          15,846         1.40          3.41             18
             0.00         (0.18)       12.11       23.03           7,969         1.40*         0.77*            48

           $(0.44)       $(0.79)      $11.48        9.15%        $ 2,170         0.65%         4.96%            44%
             0.00         (0.27)       11.27       15.50           2,196         0.65*         3.76*            39

            (0.44)        (0.71)       11.46        8.36           4,415         1.40          4.21             44
             0.00         (0.22)       11.25       14.83           3,653         1.40*         1.92*            39

            (0.44)        (0.70)       11.46        8.41          10,376         1.40          4.22             44
             0.00         (0.23)       11.24       14.82           9,826         1.40*         2.14*            39

           $(0.19)       $(0.66)      $10.35        6.79%        $   335         0.65%         5.65%            52%
             0.00         (0.36)       10.33        6.91             407         0.65*         7.54*            37

            (0.19)        (0.58)       10.35        6.08           1,658         1.40          4.90             52
             0.00         (0.31)       10.32        6.29           1,738         1.40*         4.09*            37

            (0.19)        (0.58)       10.33        6.08           3,645         1.40          4.90             52
             0.00         (0.32)       10.30        6.27           4,969         1.40*         3.39*            37
</TABLE>
                                                                   Prospectus
                                                                              40
<PAGE>

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

              The Trust's Statement of Additional Information ("SAI") and
              annual and semi-annual reports to shareholders include
              additional information about the Portfolios. In addition, the
              current Trust prospectus and the prospectus of PIMCO Funds:
              Pacific Investment Management Series relating to Institutional
              Class shares of the Underlying Funds contain additional
              information about the Underlying Funds. The SAI, the financial
              statements included in the Portfolios' most recent annual report
              to shareholders, and the Underlying Fund prospectuses are
              incorporated by reference into this Prospectus, which means they
              are part of this Prospectus for legal purposes. The Portfolios'
              annual report discusses the market conditions and investment
              strategies that significantly affected each Portfolio's
              performance during its last fiscal year.

              The SAI includes the PIMCO Funds Shareholders' Guide for Class
              A, B and C Shares, a separate booklet which contains more
              detailed information about Portfolio purchase, redemption and
              exchange options and procedures and other information about the
              Portfolios. You can get a free copy of the Guide together with
              or separately from the rest of the SAI.

              You may get free copies of any of these materials, request other
              information about a Portfolio or the Underlying Funds, or make
              shareholder inquiries by calling 1-800-426-0107, or by writing
              to:

                     PIMCO Funds Distributors LLC
                     2187 Atlantic Street
                     Stamford, Connecticut 06902

              You may review and copy information about the Trust, the
              Portfolios and the Underlying Funds, including the SAI and the
              Underlying Fund prospectuses, at the Securities and Exchange
              Commission's public reference room in Washington, D.C. You may
              call the Commission at 1-202-942-8090 for information about the
              operation of the public reference room. You may also access
              reports and other information about the Trust on the EDGAR
              database on the Commission's Web site at www.sec.gov. You may
              get copies of this information, with payment of a duplication
              fee, by writing the Public Reference Section of the Commission,
              Washington, D.C. 20549-6009, or by electronic request at the
              following e-mail address: [email protected]. You may need to
              refer to the Trust's file number under the Investment Company
              Act, which is 811-6161.

              You can also visit our Web site at www.pimcofunds.com for
              additional information about the Portfolios and the Underlying
              Funds.

[LOGO OF PIMCO FUNDS APPEARS HERE]

              File No. 811-6161
<PAGE>


           --------------------------------------------------------------------
PIMCO FundsINVESTMENT ADVISER AND ADMINISTRATOR
Asset      PIMCO Advisors L.P., 800 Newport Center Drive, Newport Beach, CA
Allocation 92660
Series     --------------------------------------------------------------------
           DISTRIBUTOR
           PIMCO Funds Distributors LLC, 2187 Atlantic Street, Stamford, CT
           06902
           --------------------------------------------------------------------
           CUSTODIAN
           State Street Bank & Trust Co., 801 Pennsylvania, Kansas City, MO
           64105
           --------------------------------------------------------------------
           SHAREHOLDER SERVICING AGENT AND TRANSFER AGENT
           PFPC, 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.


                                                     Not part of the Prospectus
<PAGE>

           Presenting the new PIMCO Funds Web site www.pimcofunds.com

[GRAPHIC]

You'll find all the content you've come to rely on--at pimcofunds.com--and more.

As part of our commitment to provide our shareholders with easy access to
timely information, we're pleased to introduce a redesigned version of the PIMCO
Funds Web site (www.pimcofunds.com).

Designed to make the site user-friendly, you'll immediately notice improved
navigation accompanied by intuitive labeling and graphics that load quickly.
Content updates include expanded detail throughout the Fund Information section,
and a variety of forms and literature are now available for printing and viewing
online or for download to your hard drive.

Fund Information Section
In addition to everything we previously offered in the Fund Information section,
we now offer the following:

 . Regular commentary from the manager of each fund.

 . A better design without frames allows you to bookmark fund profile pages.

 . Cross-links give you immediate access to literature with more detail about
each fund.

 . One-click allows you to check out the NAV and year-to-date performance of any
PIMCO Fund.

PIMCO Funds Innovation Center
The all-new PIMCO Funds Innovation Center is an invaluable resource for tech
investors and those contemplating an investment in this complex, fast-moving
sector. Dedicated to the research and analysis of technology, the Center
provides a number of key resources, including:

 . Innovation Newsletter--An online version of our popular technology investing
newsletter, featuring the latest market analysis and outlook from Dennis
McKechnie, PIMCO's renowned tech manager.

 . Timely Market Commentary--PIMCO's perspective on unfolding market events.

 . Theme Analysis--Manager assessments of the trends or "themes" that PIMCO
believes are driving the tech sector and the industry groups that make up the
market.

Daily Manager Commentary
PIMCO's Daily Manager Commentary provides investment insights from PIMCO's fund
managers, including their outlooks on the economy and the fund strategies that
relate to the current economic climate. This commentary, on a wide range of
subjects, is uniquely provided from he manager's perspective and helps
investors make informed decisions based on information directly from PIMCO's
investment professionals.

PZ008. 11/00                                          Not part of the Prospectus

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

[LOGO OF PIMCO FUNDS]                                 --------------------
                                                            PRESORTED
PIMCO Funds                                                 STANDARD
Distributors LLC                                          U.S. POSTAGE
                                                              PAID
2187 Atlantic Street                                      SMITHTOWN, NY
Stamford, CT 06902-6896                                  PERMIT NO. 700
                                                      --------------------
<PAGE>

November 1, 2000                                                Share Classes

                                                          Ins  Institutional
                                                          Adm  Administrative


MULTI-MANAGER SERIES
Prospectus

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

NFJ INVESTMENT GROUP

NFJ Equity Income Fund
NFJ Value Fund
NFJ Value 25 Fund


This cover is not part of the prospectus

<PAGE>

            Prospectus

PIMCO       This Prospectus describes three mutual funds offered by PIMCO
Funds:      Funds: Multi-Manager Series. The Funds provide access to the
Multi-      professional investment advisory services offered by PIMCO
Manager     Advisors L.P. and its affiliate, NFJ Investment Group.
Series


November 1, This Prospectus explains what you should know about the Funds
2000        before you invest. Please read it carefully.

Share       The Securities and Exchange Commission has not approved or
Classes     disapproved these securities or determined if this Prospectus is
Institu-    truthful or complete. Any representation to the contrary is a
tional and  criminal offense.
Adminis-
trative






1 PIMCO Funds: Multi-Manager Series
<PAGE>

            Table of Contents

<TABLE>
         <S>                                                               <C>
         Summary Information..............................................   3
         Fund Summaries
           NFJ Equity Income Fund.........................................   5
           NFJ Value Fund.................................................   7
           NFJ Value 25 Fund..............................................   9
         Summary of Principal Risks.......................................  11
         Management of the Funds..........................................  13
         Investment Options -- Institutional Class and Administrative
          Class Shares....................................................  15
         Purchases, Redemptions and Exchanges.............................  16
         How Fund Shares Are Priced.......................................  20
         Fund Distributions...............................................  21
         Tax Consequences.................................................  21
         Characteristics and Risks of Securities and Investment
          Techniques......................................................  22
         Financial Highlights.............................................  29
</TABLE>

                                                                   Prospectus  2
<PAGE>

            Summary Information


 The table below lists the investment objectives and certain investment
 characteristics of the Funds. Other important characteristics are described
 in the individual Fund Summaries beginning on page 5.

<TABLE>
<CAPTION>
                                                                                                Approximate
                                                                                                Number of
  Sub-Adviser     Fund           Investment Objective    Main Investments                       Holdings
 ----------------------------------------------------------------------------------------------------------
  <S>             <C>            <C>                     <C>                                    <C>
  NFJ Investment  NFJ Equity     Current income as a     Income producing common stocks of         40-50
  Group           Income         primary objective;      companies with market capitalizations
                                 long-term growth of     of more than $2 billion
                                 capital is a secondary
                                 objective
            -----------------------------------------------------------------------------------------------
                  NFJ Value      Long-term growth of     Common stocks of companies with market     40
                                 capital and income      capitalizations of more than $2
                                                         billion that are undervalued relative
                                                         to the market and their industry
                                                         groups
            -----------------------------------------------------------------------------------------------
                  NFJ Value 25   Long-term growth of     Approximately 25 common stocks of          25
                                 capital and income      companies with market capitalizations
                                                         of between $1 billion and $5 billion
                                                         and below-average price-to-earnings
                                                         ratios relative to their industry
                                                         groups
 ----------------------------------------------------------------------------------------------------------
</TABLE>

Fund        The following Fund Summaries identify each Fund's investment
Descrip-    objective, principal investments and strategies, principal
tions,      risks, performance information and fees and expenses. A more
Performance detailed "Summary of Principal Risks" describing principal risks
and Fees    of investing in the Funds begins after the Fund Summaries.

             It is possible to lose money on investments in the Funds. The
            fact that a Fund may have had good performance in the past (for
            example, during the year ended 1999) is no assurance that the
            value of the Fund's investments will not decline in the future
            or appreciate at a slower rate. An investment in a Fund is not a
            deposit of a bank and is not insured or guaranteed by the
            Federal Deposit Insurance Corporation or any other government
            agency.

3  PIMCO Funds: Multi-Manager Series
<PAGE>





                      (This page left blank intentionally)





                                                                   Prospectus  4
<PAGE>

            NFJ Equity Income Fund

-------------------------------------------------------------------------------
Principal     Investment ObjectiveFund Focus              Approximate
Investments   Seeks current       Income producing        Capitalization
and           income as a         common stocks           Range
Strategies    primary             with potential          More than $2
              objective; long-    for capital             billion
              term growth of      appreciation
              capital is a
              secondary           Approximate             Dividend
              objective           Number of               Frequency
                                  Holdings                Quarterly
                                  40-50

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in income-producing (e.g.,
            dividend-paying) common stocks of companies with market
            capitalizations of more than $2 billion at the time of investment.

             The Fund's initial selection universe consists of the 1,000
            largest publicly traded companies (in terms of market
            capitalization) in the U.S. The portfolio managers classify the
            universe by industry. They then identify the most undervalued
            stocks in each industry based mainly on relative P/E ratios,
            calculated both with respect to trailing operating earnings and
            forward earnings estimates. From this group of stocks, the Fund
            buys approximately 25 stocks with the highest dividend yields. The
            portfolio managers then screen the most undervalued companies in
            each industry by dividend yield to identify the highest yielding
            stocks in each industry. From this group, the Fund buys
            approximately 25 additional stocks with the lowest P/E ratios.

             In selecting stocks, the portfolio managers consider quantitative
            factors such as price momentum (based on changes in stock price
            relative to changes in overall market prices), earnings momentum
            (based on analysts' earnings per share estimates and revisions to
            those estimates), relative dividend yields, valuation relative to
            the overall market and trading liquidity. The portfolio managers
            may replace a stock when a stock within the same industry group
            has a considerably higher dividend yield or lower valuation than
            the Fund's current holding.

             Under normal circumstances, the Fund intends to be fully invested
            in common stocks (aside from certain cash management practices).
            The Fund may temporarily hold up to 10% of its assets in cash and
            cash equivalents for defensive purposes in response to unfavorable
            market and other conditions. This would be inconsistent with the
            Fund's investment objective and principal strategies.

-------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

              . Market Risk          . Value Securities Risk . Management Risk
              . Issuer Risk          . Credit Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

-------------------------------------------------------------------------------
Performance The Fund does not yet have a full calendar year of performance.
Information Thus, no bar chart or average annual total returns table is
            included for the Fund.

5  PIMCO Funds: Multi-Manager Series
<PAGE>

            NFJ Equity Income Fund (continued)

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

              Shareholder Fees (fees paid directly from your investment)   None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets):

<TABLE>
         <S>             <C>      <C>            <C>           <C>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
            ------------------------------------------------------------------
         Institutional   0.45%    None           0.25%         0.70%
            ------------------------------------------------------------------
         Administrative  0.45     0.25%          0.25          0.95
            ------------------------------------------------------------------
</TABLE>
            (1)  Other Expenses is based on estimated amounts for the current
                 fiscal year and reflects a 0.25% Administrative Fee paid by
                 the class.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<TABLE>
         <S>             <C>      <C>            <C>           <C>
         Share Class     Year 1   Year 3         Year 5        Year 10
            ------------------------------------------------------------------
         Institutional   $72      $224           $390          $  871
            ------------------------------------------------------------------
         Administrative   97       303            525           1,166
            ------------------------------------------------------------------
</TABLE>

                                                                   Prospectus  6
<PAGE>

            NFJ Value Fund

-------------------------------------------------------------------------------
Principal     Investment          Fund Focus              Approximate
Investments   Objective           Undervalued larger      Capitalization Range
and           Seeks long-term     capitalization          More than $2 billion
Strategies    growth of capital   common stocks
              and income

                                  Approximate Number      Dividend Frequency
                                  of Holdings             Quarterly
                                  40

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with market capitalizations of more than $2 billion at the time of
            investment and below average P/E ratios relative to the market and
            their respective industry groups. To achieve income, the Fund
            invests a portion of its assets in income-producing (e.g.,
            dividend-paying) common stocks.

             The Fund's initial selection universe consists of the 1,000
            largest publicly traded companies (in terms of market
            capitalization) in the U.S. The portfolio managers classify the
            universe by industry. They then identify the most undervalued
            stocks in each industry based mainly on relative P/E ratios,
            calculated both with respect to trailing operating earnings and
            forward earnings estimates. After narrowing this universe to
            approximately 150 candidates, the portfolio managers select
            approximately 40 stocks for the Fund, each representing a
            different industry group. The portfolio managers select stocks
            based on a quantitative analysis of factors including price
            momentum (based on changes in stock price relative to changes in
            overall market prices), earnings momentum (based on analysts'
            earnings per share estimates and revisions to those estimates),
            relative dividend yields, valuation relative to the overall market
            and trading liquidity. The Fund's portfolio is generally
            rebalanced quarterly. The portfolio managers may also replace a
            stock when a stock within the same industry group has a
            considerably lower valuation than the Fund's current holding.

             Under normal circumstances, the Fund intends to be fully invested
            in common stocks (aside from certain cash management practices).
            The Fund may temporarily hold up to 10% of its assets in cash and
            cash equivalents for defensive purposes in response to unfavorable
            market and other conditions. This would be inconsistent with the
            Fund's investment objective and principal strategies.

-------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

            . Market Risk        . Value Securities       . Management Risk
            . Issuer Risk          Risk

                                 . Credit Risk
            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

-------------------------------------------------------------------------------
Performance The Fund does not yet have a full calendar year of performance.
Information Thus, no bar chart or average annual total returns table is
            included for the Fund.


7  PIMCO Funds: Multi-Manager Series
<PAGE>

            NFJ Value Fund (continued)

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)
                                                          None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets):

<TABLE>
         <S>             <C>      <C>            <C>           <C>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
            ------------------------------------------------------------------
         Institutional   0.45%    None           0.25%         0.70%
            ------------------------------------------------------------------
         Administrative  0.45     0.25%          0.25          0.95
            ------------------------------------------------------------------
            (1) Other Expenses is based on estimated amounts for the current
                fiscal year and reflects a 0.25% Administrative Fee paid by
                the class.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

<CAPTION>
         Share Class     Year 1   Year 3         Year 5        Year 10
            ------------------------------------------------------------------
         Institutional   $72      $224           $390          $  871
            ------------------------------------------------------------------
         Administrative   97       303            525           1,166
            ------------------------------------------------------------------
</TABLE>

                                                                   Prospectus  8
<PAGE>

            NFJ Value 25 Fund


--------------------------------------------------------------------------------
Principal     Investment          Fund Focus              Approximate
Investments   Objective           Undervalued medium      Capitalization Range
and           Seeks long-term     capitalization          Between $1 billion
Strategies    growth of capital   common stocks           and $5 billion
              and income

                                  Approximate Number      Dividend Frequency
                                  of Holdings             At least annually
                                  25

            The Fund seeks to achieve its investment objective by normally
            investing at least 65% of its assets in common stocks of companies
            with market capitalizations of between $1 billion and $5 billion
            at the time of investment and below average P/E ratios relative to
            their respective industry groups. The Fund normally invests in
            approximately 25 common stocks. To achieve income, the Fund
            invests a portion of its assets in income-producing (e.g.,
            dividend-paying) common stocks.

              The Fund's initial selection universe consists of approximately
            600 stocks of companies within the Fund's capitalization range.
            The portfolio managers classify the universe by industry. They
            then identify the most undervalued stocks in each industry based
            mainly on relative P/E ratios, calculated both with respect to
            trailing operating earnings and forward earnings estimates. The
            portfolio managers then select approximately 25 stocks, each
            representing a different industry group. Each stock has close to
            equal weighting in the portfolio. The portfolio managers select
            stocks based on an analysis of factors including price momentum
            (based on changes in stock price relative to changes in overall
            market prices), earnings momentum (based on analysts' earnings per
            share estimates and revisions to those estimates), relative
            dividend yields and trading liquidity. The Fund's portfolio is
            generally rebalanced quarterly. The portfolio managers may also
            replace a stock when a stock within the same industry group has a
            considerably lower valuation than the Fund's current holding.

              Under normal circumstances, the Fund intends to be fully
            invested in common stocks (aside from certain cash management
            practices). The Fund may temporarily hold up to 25% of its assets
            in cash and cash equivalents for defensive purposes in response to
            unfavorable market and other conditions. This would be
            inconsistent with the Fund's investment objective and principal
            strategies.

--------------------------------------------------------------------------------
Principal   Among the principal risks of investing in the Fund, which could
Risks       adversely affect its net asset value, yield and total return, are:

            . Market Risk        . Smaller Company Risk      . Credit Risk
            . Issuer Risk        . Liquidity Risk            . Management Risk
            . Value Securities   . Focused Investment
              Risk                 Risk

            Please see "Summary of Principal Risks" following the Fund
            Summaries for a description of these and other risks of investing
            in the Fund.

--------------------------------------------------------------------------------
Performance The Fund does not yet have a full calendar year of performance.
Information Thus, no bar chart or average annual total returns table is
            included for the Fund.

9  PIMCO Funds: Multi-Manager Series
<PAGE>

            NFJ Value 25 Fund (continued)

--------------------------------------------------------------------------------
Fees and    These tables describe the fees and expenses you may pay if you buy
Expenses    and hold Institutional Class or Administrative Class shares of the
of the      Fund:
Fund

            Shareholder Fees (fees paid directly from your investment)None

            Annual Fund Operating Expenses (expenses that are deducted from
            Fund assets):

<TABLE>
         <S>             <C>      <C>            <C>           <C>
                                  Distribution                 Total Annual
                         Advisory and/or Service Other         Fund Operating
         Share Class     Fees     (12b-1) Fees   Expenses(/1/) Expenses
            ------------------------------------------------------------------
         Institutional   0.50%    None           0.25%         0.75%
            ------------------------------------------------------------------
         Administrative  0.50     0.25%          0.25          1.00
            ------------------------------------------------------------------
            (1)  Other Expenses reflects a 0.25% Administrative Fee paid by
                 the class.

            Examples. The Examples below are intended to help you compare the
            cost of investing in Institutional Class or Administrative Class
            shares of the Fund with the costs of investing in other mutual
            funds. The Examples assume that you invest $10,000 in the noted
            class of shares for the time periods indicated, and then redeem
            all your shares at the end of those periods. The Examples also
            assume that your investment has a 5% return each year, the
            reinvestment of all dividends and distributions, and the Fund's
            operating expenses remain the same. Although your actual costs may
            be higher or lower, the Examples show what your costs would be
            based on these assumptions.

         Share Class     Year 1   Year 3         Year 5        Year 10
            ------------------------------------------------------------------
         Institutional   $ 77     $240           $417          $  930
            ------------------------------------------------------------------
         Administrative   102      318            552           1,225
            ------------------------------------------------------------------
</TABLE>

                                                                   Prospectus 10
<PAGE>

            Summary of Principal Risks

            The value of your investment in a Fund changes with the values of
            that Fund's investments. Many factors can affect those values. The
            factors that are most likely to have a material effect on a
            particular Fund's portfolio as a whole are called "principal
            risks." The principal risks of each Fund are identified in the
            Fund Summaries and are summarized in this section. Each Fund may
            be subject to additional principal risks and risks other than
            those described below because the types of investments made by
            each Fund can change over time. Securities and investment
            techniques mentioned in this summary and described in greater
            detail under "Characteristics and Risks of Securities and
            Investment Techniques" appear in bold type. That section and
            "Investment Objectives and Policies" in the Statement of
            Additional Information also include more information about the
            Funds, their investments and the related risks. There is no
            guarantee that a Fund will be able to achieve its investment
            objective.

Market      The market price of securities owned by a Fund may go up or down,
Risk        sometimes rapidly or unpredictably. Each of the Funds normally
            invests most of its assets in common stocks and/or other equity
            securities. A principal risk of investing in each Fund is that the
            equity securities in its portfolio will decline in value due to
            factors affecting equity securities markets generally or
            particular industries represented in those markets. The values of
            equity securities may decline due to general market conditions
            which are not specifically related to a particular company, such
            as real or perceived adverse economic conditions, changes in the
            general outlook for corporate earnings, changes in interest or
            currency rates or adverse investor sentiment generally. They may
            also decline due to factors which affect a particular industry or
            industries, such as labor shortages or increased production costs
            and competitive conditions within an industry. Equity securities
            generally have greater price volatility than fixed income
            securities.

Issuer      The value of a security may also decline for a number of reasons
Risk        which directly relate to the issuer, such as management
            performance, financial leverage and reduced demand for the
            issuer's goods or services.

Value       The Funds place particular emphasis on investing in securities of
Securities  companies that may not be expected to experience significant
Risk        earnings growth, but whose securities its portfolio manager
            believes are selling at a price lower than their true value (value
            securities). Companies that issue value securities may have
            experienced adverse business developments or may be subject to
            special risks that have caused their securities to be out of
            favor. If a portfolio manager's assessment of a company's
            prospects is wrong, or if the market does not recognize the value
            of the company, the price of its securities may decline or may not
            approach the value that the portfolio manager anticipates.

Smaller     The general risks associated with equity securities and liquidity
Company     risk are particularly pronounced for securities of companies with
Risk        smaller market capitalizations. These companies may have limited
            product lines, markets or financial resources or they may depend
            on a few key employees. Securities of smaller companies may trade
            less frequently and in lesser volume than more widely held
            securities and their values may fluctuate more sharply than other
            securities. They may also trade in the over-the-counter market or
            on a regional exchange, or may otherwise have limited liquidity.
            The NFJ Value 25 Fund may have significant exposure to this risk
            because it invests substantial assets in companies with medium-
            sized market capitalizations, which are smaller and generally
            less-seasoned than the largest companies.

11 PIMCO Funds: Multi-Manager Series
<PAGE>

Liquidity   All of the Funds are subject to liquidity risk. Liquidity risk
Risk        exists when particular investments are difficult to purchase or
            sell, possibly preventing a Fund from selling such illiquid
            securities at an advantageous time or price. Funds with principal
            investment strategies that involve securities of companies with
            smaller market capitalizations, foreign securities, derivatives or
            securities with substantial market and/or credit risk tend to have
            the greatest exposure to liquidity risk.

Focused     Focusing Fund investments in a small number of issuers, industries
Investment  or foreign currencies increases risk. Funds, such as the NFJ Value
Risk        25 Fund, that invest in a relatively small number of issuers may
            have more risk because changes in the value of a single security
            or the impact of a single economic, political or regulatory
            occurrence may have a greater adverse impact on the Fund's net
            asset value. Some of those issuers also may present substantial
            credit or other risks. Also, the Funds may from time to time have
            greater risk to the extent they invest a substantial portion of
            their assets in companies in related industries such as
            "technology" or "financial and business services," which may share
            common characteristics, are often subject to similar business
            risks and regulatory burdens, and whose securities may react
            similarly to economic, market, political or other developments.

Credit      All of the Funds are subject to credit risk. This is the risk that
Risk        the issuer or the guarantor of a fixed income security, or the
            counterparty to a repurchase agreement or a loan of portfolio
            securities, is unable or unwilling to make timely principal and/or
            interest payments, or to otherwise honor its obligations.
            Securities are subject to varying degrees of credit risk, which
            are often reflected in their credit ratings.

Management  Each Fund is subject to management risk because it is an actively
Risk        managed investment portfolio. PIMCO Advisors, NFJ and each
            individual portfolio manager will apply investment techniques and
            risk analyses in making investment decisions for the Funds, but
            there can be no guarantee that these will produce the desired
            results.

                                                                   Prospectus 12
<PAGE>

            Management of the Funds

Investment  PIMCO Advisors serves as the investment adviser and the
Adviser     administrator (serving in its capacity as administrator, the
and         "Administrator") for the Funds. Subject to the supervision of the
Adminis-    Board of Trustees, PIMCO Advisors is responsible for managing,
trator      either directly or through others selected by it, the investment
            activities of the Funds and the Funds' business affairs and other
            administrative matters.

             PIMCO Advisors is located at 800 Newport Center Drive, Newport
            Beach, California 92660. Organized in 1987, PIMCO Advisors
            provides investment management and advisory services to private
            accounts of institutional and individual clients and to mutual
            funds. As of September 30, 2000, PIMCO Advisors and its subsidiary
            partnerships had approximately $272 billion in assets under
            management.

             PIMCO Advisors has retained an affiliated investment management
            firm, NFJ Investment Group ("NFJ" or the "Sub-Adviser") to manage
            each Fund's investments. See "Sub-Adviser" below. PIMCO Advisors
            has retained its affiliate, Pacific Investment Management Company
            LLC ("Pacific Investment Management Company"), to provide various
            administrative and other services required by the Funds in its
            capacity as sub-administrator. PIMCO Advisors and the sub-
            administrator may retain other affiliates to provide certain of
            these services.

Advisory    Each Fund pays PIMCO Advisors fees in return for providing or
Fees        arranging for the provision of investment advisory services. PIMCO
            Advisors (and not the Funds) pays a portion of the advisory fees
            it receives to NFJ in return for NFJ's services as Sub-Adviser.

             The Funds pay monthly advisory fees to PIMCO Advisors at the
            following annual rates (stated as a percentage of the average
            daily net assets of each Fund taken separately):

<TABLE>
<CAPTION>
         Fund                                   Advisory Fees
            -------------------------------------------------
         <S>                                    <C>
         NFJ Equity Income and NFJ Value Funds      0.45%
         NFJ Value 25 Fund                          0.50%
</TABLE>

Adminis-    Each Fund pays for the administrative services it requires under a
trative     fee structure which is essentially fixed. Institutional and
Fees        Administrative Class shareholders of each Fund pay an
            administrative fee to PIMCO Advisors, computed as a percentage of
            the Fund's assets attributable in the aggregate to those classes
            of shares. PIMCO Advisors, in turn, provides or procures
            administrative services for Institutional and Administrative Class
            shareholders and also bears the costs of most third-party services
            required by the Funds, including audit, custodial, portfolio
            accounting, legal, transfer agency and printing costs. The Funds
            do bear other expenses which are not covered under the
            administrative fee which may vary and affect the total level of
            expenses paid by Institutional and Administrative Class
            shareholders, such as brokerage fees, commissions and other
            transaction expenses, costs of borrowing money, including interest
            expenses, and fees and expenses of the Trust's disinterested
            Trustees.

             Institutional and Administrative Class shareholders of the Funds
            pay PIMCO Advisors monthly administrative fees at the annual rate
            of 0.25% (stated as a percentage of the average daily net assets
            attributable in the aggregate to the Fund's Institutional and
            Administrative Class shares):

13 PIMCO Funds: Multi-Manager Series

<PAGE>

Sub-        The Sub-Adviser has full investment discretion and makes all
Adviser     determinations with respect to the investment of a Fund's assets.
            The following provides summary information about the Sub-Adviser,
            including its investment specialty.

<TABLE>
<CAPTION>
         Sub-Adviser           Investment Specialty
            -----------------------------------------------------------------
         <S>                   <C>
         NFJ Investment Group  Value stocks that NFJ believes are undervalued
         2121 San Jacinto,     and/or offer above-average dividend yields
         Suite 1840
         Dallas, TX 75201
</TABLE>

             The following provides additional information about the Sub-
            Adviser and the individual Portfolio Manager(s) who have or share
            primary responsibility for managing the Funds' investments.

             An affiliated sub-partnership of PIMCO Advisors, NFJ provides
            advisory services to mutual funds and institutional accounts. NFJ
            Investment Group, Inc., the predecessor investment adviser to NFJ,
            commenced operations in 1989. Accounts managed by NFJ had combined
            assets as of September 30, 2000 of approximately $1.8 billion.

            The following individuals at NFJ share primary responsibility for
            the noted Funds.

<TABLE>
<CAPTION>
         Fund               Portfolio Managers  Since          Recent Professional Experience
            ---------------------------------------------------------------------------------------
         <S>                <C>                 <C>            <C>
         NFJ Equity Income  Chris Najork        2000*          Managing Director and founding
                                                               partner of NFJ. He has 30 years'
                                                               experience encompassing equity
                                                               research and portfolio management.
                                                               Prior to the formation of NFJ in
                                                               1989, he was a senior vice
                                                               president, senior portfolio manager
                                                               and analyst at NationsBank, which he
                                                               joined in 1974.
                            Benno J. Fischer    2000*          Managing Director and founding
                                                               partner of NFJ. He has 32 years'
                                                               experience in portfolio management,
                                                               investment analysis and research.
                                                               Prior to the formation of NFJ in
                                                               1989, he was chief investment
                                                               officer (institutional and fixed
                                                               income), senior vice president and
                                                               senior portfolio manager at
                                                               NationsBank, which he joined in
                                                               1971. Prior to joining NationsBank,
                                                               Mr. Fischer was a securities analyst
                                                               at Chase Manhattan Bank and Clark,
                                                               Dodge.
         NFJ Value          Messrs. Najork and  2000*          See above.
                            Fischer
                            Paul A. Magnuson    2000*          Principal at NFJ. He is a Portfolio
                                                               Manager and Senior Research Analyst
                                                               with 14 years' experience in equity
                                                               analysis and portfolio management.
                                                               Prior to joining NFJ in 1992, he was
                                                               an assistant vice president at
                                                               NationsBank, which he joined in
                                                               1985. Within the Trust Investment
                                                               Qualitative Services Division of
                                                               NationsBank, he was responsible for
                                                               equity analytics and structured fund
                                                               management.
         NFJ Value 25       Messrs. Najork and  2000*          See above.
                            Fischer

                            E. Clifton Hoover,  2000*          Principal at NFJ. He is a Portfolio
                            Jr.                                Manager with 13 years' experience in
                                                               financial analysis and portfolio
                                                               management. Prior to joining NFJ in
                                                               1997, he was associated with Credit
                                                               Lyonnais from 1991 to 1997, where he
                                                               served as a vice president and was
                                                               responsible for the financial
                                                               analysis and portfolio management of
                                                               a diversified portfolio. He began
                                                               his career as a financial analyst
                                                               with NationsBank in 1985.
</TABLE>
            -------
            *Since inception of the Fund

Distributor The Trust's Distributor is PIMCO Funds Distributors LLC, a wholly
            owned subsidiary of PIMCO Advisors. The Distributor, located at
            2187 Atlantic Street, Stamford, Connecticut 06902, is a broker-
            dealer registered with the Securities and Exchange Commission.


Adviser/    Shareholders of each Fund have approved a proposal permitting
Sub-        PIMCO Advisors to enter into new or amended sub-advisory
Adviser     agreements with one or more sub-advisers with respect to each Fund
Relation-   without obtaining shareholder approval of such agreements, subject
ship        to the conditions of an exemptive order that has been granted by
            the Securities and Exchange Commission. One of the conditions
            requires the Board of Trustees to approve any such agreement. In
            addition, the exemptive order prohibits PIMCO Advisors from
            entering into sub-advisory agreements with affiliates of PIMCO
            Advisors without shareholder approval, unless those affiliates are
            substantially wholly-owned by PIMCO Advisors. PIMCO Advisors has
            the ultimate responsibility to to oversee the Sub-Adviser and to
            recommend its hiring, termination and replacement.

                                                                 Prospectus  14
<PAGE>

            Investment Options --
            Institutional Class and Administrative Class Shares

            The Trust offers investors Institutional Class and Administrative
            Class shares of the Funds in this Prospectus.

             The Trust does not charge any sales charges (loads) or other fees
            in connection with purchases, sales (redemptions) or exchanges of
            Institutional Class or Administrative Class shares. See
            "Purchases, Redemptions and Exchanges" below.

             Administrative Class shares are generally subject to a higher
            level of operating expenses than Institutional Class shares due to
            the additional service and/or distribution fees paid by
            Administrative Class shares as described below. Therefore,
            Institutional Class shares will generally pay higher dividends and
            have a more favorable investment return than Administrative Class
            shares.

              . Service and Distribution (12b-1) Fees--Administrative Class
            Shares. The Trust has adopted both an Administrative Services Plan
            and a Distribution Plan for the Administrative Class shares of
            each Fund. Each Plan has been adopted in accordance with the
            requirements of Rule 12b-1 under the Investment Company Act of
            1940 and is administered in accordance with that rule. However,
            shareholders do not have the voting rights set forth in Rule 12b-1
            with respect to the Administrative Services Plan.

             Each Plan allows the Funds to use its Administrative Class assets
            to reimburse financial intermediaries that provide services
            relating to Administrative Class shares. The Distribution Plan
            permits reimbursement for expenses in connection with the
            distribution and marketing of Administrative Class shares and/or
            the provision of shareholder services to Administrative Class
            shareholders. The Administrative Services Plan permits
            reimbursement for services in connection with the administration
            of plans or programs that use Administrative Class shares of the
            Funds as their funding medium and for related expenses.

             In combination, the Plans permit a Fund to make total
            reimbursements at an annual rate of up to 0.25% of the Fund's
            average daily net assets attributable to its Administrative Class
            shares. The same entity may not receive both distribution and
            administrative services fees with respect to the same
            Administrative Class assets, but may receive fees under each Plan
            with respect to separate assets. Because these fees are paid out
            of a Fund's Administrative Class assets on an ongoing basis, over
            time they will increase the cost of an investment in
            Administrative Class shares and may cost an investor more than
            other types of sales charges.

              . Arrangements with Service Agents. Institutional Class and
            Administrative Class shares of the Funds may 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 and/or
            distribution fees paid with respect to Administrative Class
            shares. Service agents may impose additional or different
            conditions than the Trust on purchases, redemptions or exchanges
            of Fund shares by their customers. Service agents may also
            independently establish and charge their customers transaction
            fees, account fees and other amounts in connection with purchases,
            sales and redemptions of Fund shares in addition to any fees
            charged by the Trust. These additional fees may vary over time and
            would increase the cost of the customer's investment and lower
            investment returns. 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, redemptions and exchanges. Shareholders who
            are customers of service agents should consult their service
            agents for information regarding these fees and conditions.

15 PIMCO Funds: Multi-Manager Series
<PAGE>

            Purchases, Redemptions and Exchanges

Purchasing  Investors may purchase Institutional Class and Administrative
Shares      Class shares of the Funds at the relevant net asset value ("NAV")
            of that class without a sales charge or other fee.

             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 their
            customers' investments in the Funds.

             Administrative Class shares are offered primarily through
            employee benefit plan alliances, broker-dealers and other
            intermediaries, and each Fund pays service and/or distribution
            fees to these entities for services they provide to Administrative
            Class shareholders.

             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.

              . Investment Minimums. 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. At the discretion of PIMCO
            Advisors, the minimum initial investment may be waived for
            Institutional or Administrative Class shares offered to clients of
            PIMCO Advisors, NFJ and their affiliates. In addition, the minimum
            initial investment does not apply to Institutional Class shares
            offered through fee-based programs sponsored and maintained by a
            registered broker-dealer and approved by the Distributor in which
            each investor pays an asset based fee at an annual rate of at
            least 0.50% of the assets in the account to a financial
            intermediary for investment advisory and/or administrative
            services.

             The Trust and the Distributor may waive the minimum initial
            investment for other categories of investors at their discretion.

              . Timing of Purchase Orders and Share Price Calculations. A
            purchase order received by the Trust's transfer agent, National
            Financial Data Services (the "Transfer Agent"), prior to the close
            of regular trading (normally 4:00 p.m., Eastern time) on the New
            York Stock Exchange, on a day the Trust is open for business,
            together with payment made in one of the ways described below,
            will be effected at that day's net asset value ("NAV"). An order
            received after the close of regular trading on the New York Stock
            Exchange will be effected at the NAV 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 New York Stock 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 NAV
            determined on the prior business day. The Trust is "open for
            business" on each day the New York Stock 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.

              . Initial Investment. Investors may open an account by
            completing and signing a Client Registration Application and
            mailing it to PIMCO Funds at 840 Newport Center Drive, Suite 300,
            Newport Beach, California 92660. A Client Registration Application
            may be obtained by calling 1-800-927-4648.

                                                                   Prospectus 16
<PAGE>

             Except as described below, an investor may purchase Institutional
            Class and Administrative Class shares only by wiring federal funds
            to the Transfer Agent, National Financial Data Services, 330 West
            9th Street, 4th Floor, Kansas City, Missouri 64105. Before wiring
            federal funds, the investor must telephone the Trust at 1-800-927-
            4648 to receive instructions for wire transfer and must provide
            the following information: name of authorized person, shareholder
            name, shareholder account number, name of Fund and share class,
            amount being wired, and wiring bank name.

             An investor may purchase shares without first wiring federal
            funds if the proceeds of the investment are derived from an
            advisory account the investor maintains with PIMCO Advisors or one
            of its affiliates 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.

              . Additional Investments. An investor may purchase additional
            Institutional Class and Administrative Class shares of the Funds
            at any time by calling the Trust and wiring federal funds to the
            Transfer Agent as outlined above.

              . 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.

             An investor should invest in the Funds for long-term investment
            purposes only. The Trust, PIMCO Advisors and NFJ each reserve 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. Notice of
            any such restrictions, if any, will vary according to the
            particular circumstances.

             Institutional Class and Administrative Class shares of the Trust
            may not be qualified or registered for sale in all states.
            Investors should inquire as to whether shares of a particular Fund
            are available for offer and sale in the investor's 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.

             Subject to the approval of the Trust, an investor may purchase
            shares of a Fund with liquid securities that are eligible for
            purchase by the Fund (consistent with the 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 PIMCO Advisors or NFJ
            intends to retain the security in the Fund as an investment.
            Assets purchased by a Fund in such a transaction 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.

              . 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 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

17 PIMCO Funds: Multi-Manager Series
<PAGE>

            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.

Redeeming     . Redemptions by Mail. An investor may redeem (sell)
Shares      Institutional Class and Administrative Class shares by submitting
            a written request to PIMCO Funds at 840 Newport Center Drive,
            Suite 300, Newport Beach, California 92660. The redemption request
            should state 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. An
            investor that elects this option on the Client Registration
            Application (or subsequently in writing) may request redemptions
            of shares by calling the Trust at 1-800-927-4648, by sending a
            facsimile to 1-949-725-6830, by sending an e-mail to
            [email protected], 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, the account number and the signature
            (which may be an electronic signature) of an authorized signatory.
            Redemption requests of an amount of $10 million or more may be
            initiated by telephone, wire or e-mail, but must be confirmed in
            writing by an authorized party prior to processing.

             In electing a telephone redemption, the investor authorizes
            Pacific Investment Management Company 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 Company or the Transfer Agent to be genuine. Neither
            the Trust nor the 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, wire or e-mail 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 service may
            mean that a shareholder will be unable to effect a redemption by
            telephone or e-mail 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 or via e-mail). All telephone
            transactions are recorded, and Pacific Investment Management
            Company or the Transfer Agent may request certain information in
            order to verify that the person giving instructions is authorized
            to do so. The Trust or Transfer Agent may be liable for any losses
            due to unauthorized or fraudulent telephone transactions if it
            fails to employ reasonable procedures to confirm that instructions
            communicated by telephone are genuine. 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 "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.

                                                                   Prospectus 18
<PAGE>

             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 NAV per share next determined after
            receipt of a redemption request by the Trust or its designee. The
            request must properly identify all relevant information, such as
            account number, redemption amount (in dollars or shares) and the
            Fund name, and must be executed or initialed by the appropriate
            signatories. A redemption request received by the Trust or its
            designee prior to the close of regular trading on the New York
            Stock 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.

             Redemption proceeds 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 New York
            Stock 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.

             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 securities received in the
            distribution.

             Redemptions of Fund shares may be suspended when trading on the
            New York Stock 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 assets,
            or during any other period as permitted by the Securities and
            Exchange Commission for the protection of investors. Under these
            and other unusual circumstances, the Trust may suspend redemptions
            or postpone payment for more than seven days, as permitted by law.

Exchange    An investor may exchange Institutional Class or Administrative
Privilege   Class shares of a Fund described in this prospectus for shares of
            the same class of any other Fund described in this prospectus
            based on the respective NAVs of the shares involved. An exchange
            may be made by following the redemption procedure described

19 PIMCO Funds: Multi-Manager Series
<PAGE>

            above under "Redemptions by Mail" or, if the investor has elected
            the telephone redemption option, by calling the Trust at 1-800-
            927-4648.

             An investor may exchange shares only with respect to Funds or
            other eligible series that are registered in the investor's state
            of residence or where an exemption from registration is available.
            In addition, an exchange is generally a taxable event which will
            generate capital gains or losses, and special rules may apply in
            computing tax basis when determining gain or loss. See "Tax
            Consequences" in this Prospectus and "Taxation" in the Statement
            of Additional Information.

             The Trust reserves the right to refuse exchange purchases if, in
            the judgment of PIMCO Advisors, 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 PIMCO Advisors to be detrimental to the Trust or a
            particular Fund. The Trust reserves the right to impose additional
            restrictions on exchanges at any time, although it will attempt to
            give shareholders 30 days' prior notice whenever it is reasonably
            able to do so.

            How Fund Shares Are Priced

            The net asset value ("NAV") of a Fund's Institutional and
            Administrative Class shares is determined by dividing the total
            value of a Fund's portfolio investments and other assets
            attributable to that class, less any liabilities, by the total
            number of shares outstanding of that class.

             For purposes of calculating the NAV, portfolio securities and
            other assets for which market quotes are available are stated at
            market value. Market value is generally determined on the basis of
            last reported sales prices, or if no sales are reported, based on
            quotes obtained from a quotation reporting system, established
            market makers, or pricing services. Certain securities or
            investments for which daily market quotes are not readily
            available may be valued, pursuant to procedures established by the
            Board of Trustees, with reference to other securities or indices.
            Short-term investments having a maturity of 60 days or less are
            generally valued at amortized cost. Exchange traded options,
            futures and options on futures are valued at the settlement price
            determined by the exchange. Other securities for which market
            quotes are not readily available are valued at fair value as
            determined in good faith by the Board of Trustees or persons
            acting at their direction.

             Investments initially valued in currencies other than the U.S.
            dollar are converted to U.S. dollars using exchange rates obtained
            from pricing services. As a result, the NAV of a Fund's shares may
            be affected by changes in the value of currencies in relation to
            the U.S. dollar. The value of securities traded in markets outside
            the United States or denominated in currencies other than the U.S.
            dollar may be affected significantly on a day that the New York
            Stock Exchange is closed and an investor is not able to purchase,
            redeem or exchange shares.

             Fund shares are valued at the close of regular trading (normally
            4:00 p.m., Eastern time) (the "NYSE Close") on each day that the
            New York Stock Exchange is open. For purposes of calculating the
            NAV, the Funds normally use pricing data for domestic equity
            securities received shortly after the NYSE Close and do not
            normally take into account trading, clearances or settlements that
            take place after the NYSE Close. Domestic fixed income and foreign
            securities are normally priced using data reflecting the earlier
            closing of the principal markets for those securities. Information
            that becomes known to the Funds or their agents after the NAV has
            been calculated on a particular day will not generally be used to
            retroactively adjust the price of a security or the NAV determined
            earlier that day.

             In unusual circumstances, instead of valuing securities in the
            usual manner, the Funds may value securities at fair value or
            estimate their value as determined in good faith by the Board of
            Trustees or persons acting at their direction pursuant to
            procedures approved by the Board of Trustees. Fair valuation may
            also be used by the Board of Trustees if extraordinary events
            occur after the close of the relevant market but prior to the NYSE
            Close.

                                                                   Prospectus 20
<PAGE>

             Under certain circumstances, the per share NAV of the
            Administrative Class shares of the Funds may be lower than the per
            share NAV of the Institutional Class shares as a result of the
            daily expense accruals of the service and/or distribution fees
            paid by 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 the two classes.

            Fund Distributions

            Each Fund distributes substantially all of its net investment
            income to shareholders in the form of dividends. A shareholder
            begins earning dividends on Fund shares the day after the Trust
            receives the shareholder's purchase payment. Dividends paid by
            each Fund with respect to each class of shares are calculated in
            the same manner and at the same time, but dividends on
            Administrative Class shares are expected to be lower than
            dividends on Institutional Class shares as a result of the service
            and/or distribution fees applicable to Administrative Class
            shares.

             The NFJ Equity Income and NFJ Value Funds each intend to declare
            and distribute income dividends to shareholders of record at least
            quarterly. The NFJ Value 25 Fund intends to declare and distribute
            income dividends to shareholders of record at least annually. In
            addition, each Fund distributes any net capital gains it earns
            from the sale of portfolio securities to shareholders no less
            frequently than annually. Net short-term capital gains may be paid
            more frequently.

             A Fund's dividend and capital gain distributions with respect to
            a particular class of shares will automatically be reinvested in
            additional shares of the same class of the Fund at NAV unless the
            shareholder elects to have the distributions paid in cash. A
            shareholder may elect to have distributions paid in cash on the
            Client Registration Application or by submitting a written
            request, signed by the appropriate signatories, indicating the
            account number, Fund name(s) and wiring instructions. Shareholders
            do not pay any sales charges or other fees on the receipt of
            shares received through the reinvestment of Fund distributions.

             For further information on distribution options, please contact
            the Trust at 1-800-927-4648.

            Tax Consequences

              . Taxes on Fund Distributions. A shareholder subject to U.S.
            federal income tax will be subject to tax on Fund distributions
            whether they are paid in cash or reinvested in additional shares
            of the Funds. For federal income tax purposes, Fund distributions
            will be taxable to the shareholder as either ordinary income or
            capital gains.

             Fund dividends (i.e., distributions of investment income) are
            taxable to shareholders as ordinary income. Federal taxes on Fund
            distributions of gains are determined by how long the Fund owned
            the investments that generated the gains, rather than how long the
            shareholder owned the shares. Distributions of gains from
            investments that a Fund owned for more than 12 months will
            generally be taxable to shareholders as capital gains.
            Distributions of gains from investments that the Fund owned for 12
            months or less will generally be taxable as ordinary income.

             Fund distributions are taxable to shareholders even if they are
            paid from income or gains earned by a Fund prior to the
            shareholder's investment and thus were included in the price paid
            for the shares. For example, a shareholder who purchases shares on
            or just before the record date of a Fund distribution will pay
            full price for the shares and may receive a portion of his or her
            investment back as a taxable distribution.


21 PIMCO Funds: Multi-Manager Series
<PAGE>

              . Taxes on Redemptions or Exchanges of Shares. Any gain
            resulting from the sale of Fund shares will generally be subject
            to federal income tax. When a shareholder exchanges shares of a
            Fund for shares of another series, the transaction generally will
            be treated as a sale of the Fund shares for these purposes, and
            any gain on those shares will generally be subject to federal
            income tax.

              . A Note on Foreign Investments. A Fund's investments in foreign
            securities, if any, may be subject to foreign withholding taxes.
            In that case, the Fund's yield on those securities would be
            decreased. In addition, a Fund's investments in foreign securities
            or foreign currencies may increase or accelerate the Fund's
            recognition of ordinary income and may affect the timing or amount
            of the Fund's distributions.

             This section relates only to federal income tax; the consequences
            under other tax laws may differ. Shareholders should consult their
            tax advisors as to the possible application of foreign, state and
            local income tax laws to Fund dividends and capital distributions.
            Please see the Statement of Additional Information for additional
            information regarding the tax aspects of investing in the Funds.

            Characteristics and Risks of
            Securities and Investment Techniques

            This section provides additional information about some of the
            principal investments and related risks of the Funds identified
            under "Summary Information" above. It also describes
            characteristics and risks of additional securities and investment
            techniques that are not necessarily principal investments or
            strategies but may be used by the Funds from time to time. Most of
            these securities and investment techniques are discretionary,
            which means that the portfolio managers can decide whether to use
            them or not. This Prospectus does not attempt to disclose all of
            the various types of securities and investment techniques that may
            be used by the Funds. As with any mutual fund, investors in the
            Funds must rely on the professional investment judgment and skill
            of the Funds' Adviser and Sub-Adviser and the individual portfolio
            managers. Please see "Investment Objectives and Policies" in the
            Statement of Additional Information for more detailed information
            about the securities and investment techniques described in this
            section and about other strategies and techniques that may be used
            by the Funds.

Fixed       Fixed income securities are obligations of the issuer to make
Income      payments of principal and/or interest on future dates, and include
Securities  corporate and government bonds, notes, certificates of deposit,
and         commercial paper, convertible securities and mortgage-backed and
Defensive   other asset-backed securities.
Strategies

             Under normal circumstances, the Funds intend to be fully invested
            in common stocks (aside from cash management practices), except
            that each of the Funds may temporarily hold up to 10% of its
            assets in cash and cash equivalents for defensive purposes in
            response to unfavorable market and other conditions. These
            temporary defensive strategies would be inconsistent with the
            investment objective and principal investment strategies of each
            of the Funds and may adversely affect a Fund's ability to achieve
            its investment objective.

Companies   Each of the Funds may invest in securities of companies with
With Smallermarket capitalizations that are small compared to other publicly
Market      traded companies. The NFJ Value 25 Fund has significant exposure
Capitaliza- to the risks described below because it invests primarily in
tions       companies with medium-sized market capitalization, which are
            smaller and generally less well-known or seasoned than the largest
            companies. Companies which are smaller and less well-known or
            seasoned than larger, more widely held companies may offer greater
            opportunities for capital appreciation, but may also involve risks
            different from, or greater than, risks normally associated with
            larger companies. Larger 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
            than smaller companies. Smaller companies may have limited product
            lines, markets or financial resources or may depend on a small,
            inexperienced management group. Securities of

                                                                  Prospectus  22
<PAGE>

            smaller companies may trade less frequently and in lesser volume
            than more widely held securities and their values may fluctuate
            more abruptly or erratically than securities of larger companies.
            They may also trade in the over-the-counter market or on a
            regional exchange, or may otherwise have limited liquidity. These
            securities may therefore be more vulnerable to adverse market
            developments than securities of larger companies. Also, there may
            be less publicly available information about smaller companies or
            less market interest in their securities as compared to larger
            companies, and it may take longer for the prices of the securities
            to reflect the full value of a company's earnings potential or
            assets.

             Because securities of smaller companies may have limited
            liquidity, a Fund may have difficulty establishing or closing out
            its positions in smaller companies at prevailing market prices. 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. For these reasons, 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 smaller capitalization securities, which
            could adversely affect performance.

Intial      The Funds may purchase securities in initial public offerings
Public      (IPOs). These securities are subject to many of the same risks of
Offerings   investing in companies with smaller market capitalizations.
            Securities issued in IPOs have no trading history, and information
            about the companies may be available for very limited periods. In
            addition, the prices of securities sold in IPOs may be highly
            volatile. At any particular time or from time to time, a Fund may
            not be able to invest in securities issued in IPOs, or invest to
            the extent desired, because, for example, only a small portion (if
            any) of the securities being offered in an IPO may be made
            available to the Fund. In addition, under certain market
            conditions a relatively small number of companies may issue
            securities in IPOs. Similarly, as the number of Funds to which IPO
            securities are allocated increases, the number of securities
            issued to any one Fund may decrease. The investment performance of
            a Fund during periods when it is unable to invest significantly or
            at all in IPOs may be lower than during periods when the Fund is
            able to do so. In addition, as a Fund increases in size, the
            impact of IPOs on the Fund's performance will generally decrease.

Foreign     Each of the Funds may invest in foreign securities, including
(non-       American Depository Receipts (ADRs). ADRs are dollar-denominated
U.S.)       receipts issued generally by domestic banks and representing the
Securities  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.

             Investing in foreign securities involves special risks and
            considerations not typically associated with investing in U.S.
            securities and shareholders should consider carefully the
            substantial risks involved for Funds that invest in these
            securities. These risks include: differences in accounting,
            auditing and financial reporting standards; generally higher
            commission rates on foreign portfolio transactions; the
            possibility of nationalization, expropriation or confiscatory
            taxation; adverse changes in investment or exchange control
            regulations; and political instability. 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 foreign securities
            markets may change independently of each other. Also, 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. Investments in foreign
            securities may also involve higher custodial costs than domestic
            investments and additional transaction costs with respect to
            foreign currency conversions. Changes in foreign exchange rates
            also will affect the value of securities denominated or quoted in
            foreign currencies.

23 PIMCO Funds: Multi-Manager Series
<PAGE>

Emerging    Each of the Funds may invest in securities of issuers based in or
Market      that trade principally in countries with developing (or "emerging
Securities  market") economies. Investing in emerging market securities
            imposes risks different from, or greater than, risks of investing
            in domestic securities or in foreign, developed countries. These
            risks include: smaller market capitalization of securities
            markets, which may suffer periods of relative illiquidity;
            significant price volatility; restrictions on foreign investment;
            and possible repatriation of investment income and capital. In
            addition, foreign investors may be required to register the
            proceeds of sales, and future economic or political crises could
            lead to price controls, forced mergers, expropriation or
            confiscatory taxation, seizure, nationalization or the creation of
            government monopolies. The currencies of emerging market countries
            may experience significant declines against the U.S. dollar, 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.

             Additional risks of emerging market securities may include:
            greater social, economic and political uncertainty and
            instability; more substantial governmental involvement in the
            economy; less governmental supervision and regulation;
            unavailability of currency hedging techniques; companies that are
            newly organized and small; differences in auditing and financial
            reporting standards, which may result in unavailability of
            material information about issuers; and less developed legal
            systems. 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 be delayed 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. Each of the Funds may invest a portion of its 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.



Foreign     A Fund that invests directly in foreign currencies or in
Currencies  securities that trade in, and receive revenues in, foreign
            currencies will be subject to currency risk. Foreign currency
            exchange rates may fluctuate significantly over short periods of
            time. They generally are determined by supply and demand and the
            relative merits of investments in different countries, actual or
            perceived changes in interest rates and other complex factors.
            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. For example, uncertainty surrounds the introduction
            of the euro (a common currency unit for the European Union) and
            the effect it may have on the value of European currencies as well
            as 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.

Convertible Each Fund may invest in convertible securities. Convertible
Securities  securities are generally preferred stocks and other securities,
            including fixed income securities and warrants, that are
            convertible into or exercisable for common

                                                                  Prospectus  24
<PAGE>

            stock at either a stated price or a stated rate. The price of a
            convertible security will normally vary in some proportion to
            changes in the price of the underlying common stock because of
            this conversion or exercise feature. However, the value of a
            convertible security may not increase or decrease as rapidly as
            the underlying common stock. A convertible security will normally
            also provide income and is subject to interest rate risk. 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. Also, a Fund may be forced to convert
            a security before it would otherwise choose, which may have an
            adverse effect on the Fund's ability to achieve its investment
            objective.

Credit      The Funds may invest in securities based on their credit ratings
Ratings     assigned by rating agencies such as Moody's Investors Service,
and         Inc. ("Moody's") and Standard & Poor's Ratings Services ("S&P").
Unrated     Moody's, S&P and other rating agencies are private services that
Securities  provide ratings of the credit quality of fixed income securities,
            including convertible securities. The Appendix to the Statement of
            Additional Information describes the various ratings assigned to
            fixed income securities by Moody's and S&P. Ratings assigned by a
            rating agency are not absolute standards of credit quality and do
            not evaluate market risk. Rating agencies may fail to make timely
            changes in credit ratings and an issuer's current financial
            condition may be better or worse than a rating indicates. A Fund
            will not necessarily sell a security when its rating is reduced
            below its rating at the time of purchase. PIMCO Advisors and NFJ
            do not rely solely on credit ratings, and develop their own
            analysis of issuer credit quality.

             A Fund may purchase unrated securities (which are not rated by a
            rating agency) if its portfolio manager determines that the
            security is of comparable quality to a rated security that the
            Fund may purchase. Unrated securities may be less liquid than
            comparable rated securities and involve the risk that the
            portfolio manager may not accurately evaluate the security's
            comparative credit rating.

Loans of    For the purpose of achieving income, each Fund may lend its
Portfolio   portfolio securities to brokers, dealers, and other financial
Securities  institutions provided a number of conditions are satisfied,
            including that the loan is fully collateralized. Please see
            "Investment Objectives and Policies" in the Statement of
            Additional Information for details. When a Fund lends portfolio
            securities, its investment performance will continue to reflect
            changes in the value of the securities loaned, and the Fund will
            also receive a fee or interest on the collateral. Securities
            lending involves the risk of loss of rights in the collateral or
            delay in recovery of the collateral if the borrower fails to
            return the security loaned or becomes insolvent. A Fund may pay
            lending fees to the party arranging the loan.

Short       Each Fund may make short sales as part of its overall portfolio
Sales       management strategies or to offset a potential decline in the
            value of a security. A short sale involves the sale of a security
            that is borrowed from a broker or other institution to complete
            the sale. A Fund may only enter into short selling transactions if
            the security sold short is held in the Fund's portfolio or if the
            Fund has the right to acquire the security 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 a Fund to the
            risk that it will be required to acquire, convert or exchange
            securities to replace the borrowed securities (also known as
            "covering" the short position) at a time when the securities sold
            short have appreciated 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
Delivery    securities for a fixed price at a future date beyond normal
and         settlement time (forward commitments). When-issued transactions,
Forward     delayed delivery purchases and forward commitments involve a risk
Commitment  of loss if the value of the securities declines prior to the
Transac-    settlement date. This risk is in addition to the risk that the
tions       Fund's other assets will decline in value. Therefore,

25  PIMCO Funds: Multi-Manager Series

<PAGE>

            these transactions may result in a form of leverage and increase a
            Fund's overall investment exposure. 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 to cover these positions.

Repurchase  Each Fund may enter into repurchase agreements, in which the Fund
Agreements  purchases a security from a bank or broker-dealer that agrees to
            repurchase the security at the Fund's cost plus interest within a
            specified time. If the party agreeing to repurchase should
            default, the Fund will seek to sell the securities which it holds.
            This could involve procedural costs or delays in addition to a
            loss on the securities if their value should fall below their
            repurchase price. Repurchase agreements maturing in more than
            seven days are considered illiquid securities.

Reverse     Each Fund may enter into reverse repurchase agreements, subject to
Repurchase  the Fund's limitations on borrowings. A reverse repurchase
Agreements  agreement involves the sale of a security by a Fund and its
and Other   agreement to repurchase the instrument at a specified time and
Borrowings  price, and may be considered a form of borrowing for some
            purposes. A Fund will segregate assets determined to be liquid by
            PIMCO Advisors or NFJ in accordance with procedures established by
            the Board of Trustees to cover its obligations under reverse
            repurchase agreements. 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.
            Reverse repurchase agreements and other forms of borrowings may
            create leveraging risk for a Fund.

Illiquid    Each Fund may invest in securities that are illiquid so long as
Securities  not more than 15% of the value of the Fund's net assets (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 held by the
            Fund, 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. Please see "Investment Objectives and Policies" in
            the Statement of Additional Information for a listing of various
            securities that are generally considered to be illiquid for these
            purposes. Restricted securities, i.e., securities subject to legal
            or contractual restrictions on resale, may be illiquid. However,
            some restricted securities (such as securities issued pursuant to
            Rule 144A under the Securities Act of 1933 and certain commercial
            paper) may be treated as liquid, although they may be less liquid
            than registered securities traded on established secondary
            markets.

Investment  Each of the Funds may invest up to 5% of its assets in securities
in Other    of other investment companies, such as closed-end management
Investment  investment companies, or in other pooled investment vehicles. As a
Companies   shareholder of an investment company, a Fund may indirectly bear
            service and other fees which are in addition to the fees the Fund
            pays its service providers.

Portfolio   The length of time a Fund has held a particular security is not
Turnover    generally a consideration in investment decisions. A change in the
            securities held by a Fund is known as "portfolio turnover." Each
            Fund may engage in active and frequent trading of portfolio
            securities to achieve its investment objective and principal
            investment strategies, particularly during periods of volatile
            market movements. 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 also result in realization of taxable
            capital gains, including short-term capital gains (which are taxed
            at ordinary income tax rates when distributed to shareholders who
            are individuals). The trading costs and tax effects associated
            with portfolio turnover may adversely affect a Fund's performance.

                                                                   Prospectus 26
<PAGE>

Changes     The investment objective of each Fund may be changed by the Board
in          of Trustees without shareholder approval. Unless otherwise stated
Investment  in the Statement of Additional Information, all investment
Objectives  policies of the Funds may be changed by the Board of Trustees
and         without shareholder approval. If there is a change in a Fund's
Policies    investment objective or policies, 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.

            In addition to the risks described under "Summary of Principal
New and     Risks" above and in this section, the Funds are newly formed and
Smaller-    therefore have limited or no performance histories for investors
Sized       to evaluate. Also, it is possible that the Funds may invest in
Funds       securities offered in initial public offerings and other types of
            transactions (such as private placements) which, because of the
            Funds' size, may have a disproportionate impact on the Funds'
            performance results. The Funds would not necessarily have achieved
            the same performance results if their aggregate net assets had
            been greater.

Percentage  Unless otherwise stated, all percentage limitations on Fund
Investment  investments listed in this Prospectus will apply at the time of
Limitations investment. A Fund would not violate these limitations unless an
            excess or deficiency occurs or exists immediately after and as a
            result of an investment.

Other       The Funds may invest in other types of securities and use a
Investments variety of investment techniques and strategies which are not
and         described in this Prospectus. These securities and techniques may
Techniques  subject the Funds to additional risks. Please see the Statement of
            Additional Information for additional information about the
            securities and investment techniques described in this Prospectus
            and about additional securities and techniques that may be used by
            the Funds.

27 PIMCO Funds: Multi-Manager Series
<PAGE>




                      (This page intentionally left blank)

                                                                   Prospectus 28
<PAGE>

            Financial Highlights

            The financial highlights table is inteded to help you understand
            the financial performance of Institutional Class and
            Administrative Class shares of each Fund since the class of shares
            was first offered. Certain information reflects financial results
            for a single Fund share. The total returns in the table represent
            the rate that an investor would have earned or lost on an
            investment in a particular class of shares of a Fund, assuming
            reinvestment of all dividends and distributions. This information
            has been audited by PricewaterhouseCoopers LLP, whose report,
            along with each Fund's financial statements, are included in the
            Trust's annual report to shareholders. The annual report is
            incorporated by reference in the Statement of Additional
            Information and is available free of charge upon request from the
            Distributor. The NFJ Value 25 Fund did not have Institutional
            Class and Administrative Class shares outstanding during the
            periods shown.

<TABLE>
<CAPTION>
                                                                             Dividends
                 Net Asset    Net      Net Realized/     Total    Dividends  in Excess
                   Value   Investment    Unrealized   Income from  from Net    of Net
     Year or     Beginning   Income    Gain (Loss) on Investment  Investment Investment
  Period Ended   of Period   (Loss)     Investments   Operations    Income     Income
---------------------------------------------------------------------------------------
<S>              <C>       <C>         <C>            <C>         <C>        <C>
 NFJ Equity
  Income Fund
  Institutional
   Class
   05/08/00 -
    06/30/00      $10.51     $0.06(a)      $(0.66)(a)   $(0.60)     $(0.03)    $0.00
  Administrative
   Class
   05/08/00 -
    06/30/00       10.50      0.07(a)       (0.68)(a)    (0.61)      (0.02)     0.00
 NFJ Value Fund
  Institutional
   Class
   05/08/00 -
    06/30/00      $11.22     $0.07(a)      $(0.39)(a)   $(0.32)     $(0.05)    $0.00
</TABLE>
 -------
 *Annualized
 (a)Per share amounts based on average number of shares outstanding during the
    period.


29  PIMCO Funds: Multi-Manager Series
<PAGE>





<TABLE>
<CAPTION>
                                               Fund       Net                                      Ratio of Net
 Distributions Distributions               Reimbursement Asset                          Ratio of    Investment
    of Net     in Excess of                Fee Added to  Value            Net Assets   Expenses to Income (Loss)
   Realized    Net Realized      Total       Paid-in-    End of Total       End of     Average Net  to Average     Portfolio
 Capital Gains Capital Gains Distributions    Capital    Period Return   Period (000s)   Assets     Net Assets   Turnover Rate
------------------------------------------------------------------------------------------------------------------------------
<S>            <C>           <C>           <C>           <C>    <C>      <C>           <C>         <C>           <C>
     $0.00         $0.00        $(0.03)        $0.00     $ 9.88 (5.73)%     $24,888       0.70%*       3.81%*           3%
      0.00          0.00         (0.02)         0.00       9.87 (5.78)        4,638       0.95*        4.74*            3
     $0.00         $0.00        $(0.05)        $0.00     $10.85 (2.90)%     $   911       0.70%*       3.94%*           5%
</TABLE>


                                                                   Prospectus 30
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Multi-      INVESTMENT ADVISER AND ADMINISTRATOR
Manager     PIMCO Advisors L.P., 800 Newport Center Drive, Newport Beach, CA
Series      92660

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            SUB-ADVISER
            NFJ Investment Group, 2121 San Jacinto, Suite 1840, Dallas, TX
            75201

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            CUSTODIAN
            State Street Bank & Trust Co., 801 Pennsylvania, Kansas City, MO
            64105

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            TRANSFER AGENT
            National Financial Data Services, 330 W. 9th Street, 4th Floor,
            Kansas City, MO 64105

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            INDEPENDENT ACCOUNTANTS
            PricewaterhouseCoopers LLP, 1055 Broadway, Kansas City, MO 64105

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            LEGAL COUNSEL
            Ropes & Gray, One International Place, Boston, MA 02110

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<PAGE>

The Trust's Statement of Additional Information ("SAI") and annual and
semi-annual reports to shareholders include additional information about the
Funds. The SAI and the financial statements included in the Funds' most recent
annual report to shareholders are incorporated by reference into this
Prospectus, which means they are part of this Prospectus for legal purposes. The
Funds' annual report discusses the market conditions and investment strategies
that significantly affected each Fund's performance during its last fiscal
year.

You may get free copies of any of these materials, request other information
about a Fund, or make shareholder inquiries by calling the Trust at 1-800-927-
4648 or PIMCO Infolink Audio Response Network at 1-800-987-4626, or by writing
to:

PIMCO Funds:
Multi-Manager Series
840 Newport Center Drive
Suite 300
Newport Beach, CA 92660

You may review and copy information about the Trust, including its SAI at the
Securities and Exchange Commission's Public Reference Room in Washington, D.C.
You may call the Commission at 1-202-942-8090 for more information about the
operation of the public reference room. You may also access reports and other
information about the Trust on the Commission's Web site at www.sec.gov. You may
get copies of this information, with payment of a duplication fee, by writing
the Public Reference Section of the Commission, Washington, D.C. 20549-6009, or
by e-mailing your request to [email protected]. Reference the Trust's
Investment Company Act file number in your correspondence.

Investment Company Act
File No. 811-6161

Multi-Manager Series

840 Newport Center Drive
Suite 300
Newport Beach, CA 92660

PY001.11/00



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