PIONEER FUND /MA/
485BPOS, 1998-04-30
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As filed with the Securities and Exchange Commission on April 30, 1998
                                                               File Nos. 2-25980
                                                                       811-07613
                                               (formerly File No. 811-01466)    

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM N-1A

          REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 / X /
                                                                   ---

                         Pre-Effective Amendment No. __           /   /

   
                         Post-Effective Amendment No. 65          / X /
                                                                   ---    

                                     and/or

                        REGISTRATION STATEMENT UNDER THE
                         INVESTMENT COMPANY ACT OF 1940           / X /
                                                                   ---

   
                                 Amendment No. 31                 / X /
                                                                   ---    
                        (Check appropriate box or boxes)

                                  PIONEER FUND
               (Exact Name of Registrant as Specified in Charter)

   
                  60 State Street, Boston, Massachusetts 02109
               (Address of Principal Executive Offices) (Zip Code)    

     Registrant's Telephone Number, including Area Code: (617) 742-7825

   
              Joseph P. Barri, Hale and Dorr LLP, 60 State Street,
                          Boston, Massachusetts 02109
                     (Name and Address of Agent for Service)    

It is proposed that this filing will become effective (check appropriate box):

   
     ___ immediately upon filing pursuant to paragraph (b)
      X  on April 30, 1998 pursuant to paragraph (b)
     ---
     ___ 60 days after filing pursuant to paragraph (a)(1)
     ___ 75 days after filing pursuant to paragraph (a)(2)
     ___ on [date] pursuant to paragraph (a)(2) of Rule 485.

If appropriate, check the following box:

___ This post-effective amendment designates a new effective date for a
previously filed post-effective amendment.

Title of Securities Being Registered: Shares of Beneficial Interest
(without par value)    


<PAGE>


                                  PIONEER FUND

   
                       Class A, Class B and Class C Shares    

      Cross-Reference Sheet Showing Location in Prospectus and Statement of
                      Additional Information of Information
                   Required by Items of the Registration Form

FORM N-1A ITEM NUMBER AND CAPTION        LOCATION IN PROSPECTUS OR STATEMENT
                                         OF ADDITIONAL INFORMATION

1.   Cover Page                          Prospectus - Cover Page

2.   Synopsis                            Prospectus - Expense Information

3.   Condensed Financial Information     Prospectus - Financial Highlights

   
4.   General Description of Registrant   Prospectus - Cover Page; Investment
                                         Objectives and Policies; Management of
                                         the Fund; Fund Share Alternatives;
                                         Share Price; How to Buy Fund Shares;
                                         How to Sell Fund Shares; How to
                                         Exchange Fund Shares; The Fund

5.   Management of the Fund              Prospectus - Management of the Fund;
                                         Shareholder Services

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

6.   Capital Stock and Other Securities  Prospectus - Investment Objectives and
                                         Policies; Management of the Fund; Fund
                                         Share Alternatives; Share Price; How to
                                         Buy Fund Shares; How to Sell Fund
                                         Shares; How to Exchange Fund Shares;
                                         Dividends, Distributions and Taxation;
                                         The Fund

   
7.   Purchase of Securities Being
     Offered                             Prospectus - Management of the Fund;
                                         Distribution Plans; Fund Share
                                         Alternatives; Share Price; How to Buy
                                         Fund Shares; How to Sell Fund Shares;
                                         How to Exchange Fund Shares;
                                         Shareholder Services

8.   Redemption or Repurchase            Prospectus - Fund Share Alternatives;
                                         How to Buy Fund Shares; How to Sell
                                         Fund Shares; How to Exchange Fund
                                         Shares; Shareholder Services    

9.   Pending Legal Proceedings           Not Applicable


<PAGE>


10.  Cover Page                          Statement of Additional Information -
                                         Cover Page

11.  Table of Contents                   Statement of Additional Information -
                                         Cover Page


12.  General Information and History     Statement of Additional Information -
                                         Description of Shares

   
13.  Investment Objectives and Policies  Statement of Additional Information -
                                         Investment Policies and Restrictions;
                                         Appendix A

14.  Management of the Fund              Statement of Additional Information -
                                         Management of the Fund    

15.  Control Persons and Principal
     Holders of Securities               Statement of Additional Information -
                                         Management of the Fund

   
16.  Investment Advisory and Other
     Services                            Statement of Additional Information -
                                         Management of the Fund; Investment
                                         Adviser; Underwriting Agreement and
                                         Distribution Plans; Shareholder
                                         Servicing/Transfer Agent; Custodian;
                                         Principal Underwriter; Independent
                                         Public Accountants; Appendix C    

17.  Brokerage Allocation and Other
     Practices                           Statement of Additional Information -
                                         Portfolio Transactions

18.  Capital Stock and Other Securities  Statement of Additional Information -
                                         Description of Shares

   
19.  Purchase, Redemption and Pricing
     of Securities Being Offered         Statement of Additional Information -
                                         Letter of Intent; Systematic Withdrawal
                                         Plan; Determination of Net Asset Value

20.  Tax Status                          Statement of Additional Information -
                                         Tax Status

21.  Underwriters                        Statement of Additional Information -
                                         Underwriting Agreement and Distribution
                                         Plans; Principal Underwriter

22.  Calculation of Performance Data     Statement of Additional Information -
                                         Investment Results; Appendix B

23.  Financial Statements                Statement of Additional Information -
                                         Financial Statements    


<PAGE>
                                                                  [PIONEER LOGO]

   
[shooting star graphic
above table of contents]
  HAPPY 70TH BIRTHDAY
P I O N E E R   F U N D
 S I N C E   1 9 2 8
- ------------------------
Targeting Classics Today
     and Tomorrow    

PIONEER
FUND



CLASS A, CLASS B AND CLASS C SHARES
PROSPECTUS
   
APRIL 30, 1998    

      The investment objectives of Pioneer Fund ("the Fund") are reasonable
income and growth of capital. The Fund seeks to achieve these objectives by
investing in a broad list of carefully selected, reasonably priced securities.

      FUND RETURNS AND SHARE PRICES FLUCTUATE AND THE VALUE OF YOUR ACCOUNT
UPON REDEMPTION MAY BE MORE OR LESS THAN YOUR PURCHASE PRICE. SHARES IN THE
FUND ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED BY, ANY BANK
OR OTHER DEPOSITORY INSTITUTION, AND THE SHARES ARE NOT FEDERALLY INSURED BY
THE FEDERAL DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY
OTHER GOVERNMENT AGENCY.

   
      This Prospectus provides the information about the Fund that you should
know before investing. Please read and retain it for your future reference.
More information about the Fund is included in the Statement of Additional
Information, also dated April 30, 1998, as supplemented or revised from time to
time, which is incorporated into this Prospectus by reference. A copy of the
Statement of Additional Information may be obtained free of charge by calling
Shareholder Services at 1-800-225-6292 or by written request to the Fund at 60
State Street, Boston, Massachusetts 02109. Other information about the Fund has
been filed with the Securities and Exchange Commission (the "SEC") and is
available upon request and without charge by calling 1-800-225-6292 or through
the SEC's Internet web site (http://www.sec.gov).    

   
          TABLE OF CONTENTS                                         PAGE
          -------------------------------------------------------   -----
I.        EXPENSE INFORMATION ...................................      2
II.       FINANCIAL HIGHLIGHTS ..................................      3
III.      INVESTMENT OBJECTIVES AND POLICIES ....................      6
IV.       MANAGEMENT OF THE FUND ................................      6
V.        FUND SHARE ALTERNATIVES ...............................      8
VI.       SHARE PRICE ...........................................      9
VII.      HOW TO BUY FUND SHARES ................................      9
VIII.     HOW TO SELL FUND SHARES ...............................     12
IX.       HOW TO EXCHANGE FUND SHARES ...........................     13
X.        DISTRIBUTION PLANS ....................................     14
XI.       DIVIDENDS, DISTRIBUTIONS AND TAXATION .................     15
XII.      SHAREHOLDER SERVICES ..................................     16
           Account and Confirmation Statements ..................     16
           Additional Investments ...............................     16
           Automatic Investment Plans ...........................     16
           Financial Reports and Tax Information ................     16
           Distribution Options .................................     16
           Directed Dividends ...................................     16
           Direct Deposit .......................................     16
           Voluntary Tax Withholding ............................     16
           Telephone Transactions ...............................     17
           FactFoneSM ...........................................     17
           Telecommunications Device for the Deaf (TDD) .........     17
           Retirement Plans .....................................     17
           Systematic Withdrawal Plans ..........................     17
           Reinstatement Privilege (Class A Shares Only) ........     17
XIII.     THE FUND ..............................................     18
XIV.      INVESTMENT RESULTS ....................................     18    

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

THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION NOR HAS THE COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY
OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
<PAGE>

I. EXPENSE INFORMATION
   
     This table is designed to help you understand the charges and expenses
that you, as a shareholder, will bear directly or indirectly when you invest in
the Fund. The table reflects annual operating expenses based upon actual
expenses incurred for the fiscal year ended December 31, 1997.    

   
<TABLE>
<CAPTION>
SHAREHOLDER TRANSACTION EXPENSES:                   CLASS A        CLASS B       CLASS C
<S>                                                  <C>             <C>           <C>
 Maximum Initial Sales Charge on Purchases (as
  a percentage of offering price) .............      5.75%(1)        None          None
 Maximum Sales Charge on Reinvestment
  of Dividends ................................      None            None          None
 Maximum Deferred Sales Charge (as a
  percentage of original purchase price or
  redemption proceeds, as applicable) .........      None(1)         4.00%         1.00%
 Redemption Fee(2) ............................      None            None          None
 Exchange Fee .................................      None            None          None

ANNUAL OPERATING EXPENSES (as a
percentage of average net assets):
 Management Fee(3) ......................            0.61%           0.61%         0.61%
 12b-1 Fees .............................            0.20%           1.00%         1.00%
 Other Expenses (including accounting and
  transfer agent fees, custodian fees and
  printing expenses)(4) .................            0.21%           0.27%         0.22%
                                                     ----            ----          ----
TOTAL OPERATING EXPENSES ................            1.02%           1.88%         1.83%
                                                     ====            ====          ====
</TABLE> 
    

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

(1) Purchases of $1 million or more and purchases by participants in certain
    group plans are not subject to an initial sales charge but may be subject to
    a contingent deferred sales charge ("CDSC") as further described under "How
    to Sell Fund Shares."

   
(2) Separate fees (currently $10 and $20, respectively) apply to United States
    ("U.S.") and international wire transfers of redemption proceeds.

(3) The Fund pays a management fee that may vary from 0.50% to 0.70% based on
    its performance. See "Management of the Fund."

(4) Expenses are net of amounts paid in connection with third-party brokerage/
    service and certain expense offset arrangements. See "Financial Highlights."
    

EXAMPLE:
   
     You would pay the following expenses on a $1,000 investment, with or
without redemption at the end of each time period, assuming a 5% annual return,
reinvestment of all dividends and distributions and that the percentage amounts
listed under "Annual Operating Expenses" remain the same each year:    

   
<TABLE>
<CAPTION>
                                   1 YEAR     3 YEARS     5 YEARS     10 YEARS
                                  --------   ---------   ---------   ---------
<S>                                  <C>        <C>         <C>         <C>
Class A Shares                       $67        $88         $111        $175
Class B Shares*
- --Assuming complete redemption
  at end of period                   $59        $89         $122        $198
- --Assuming no redemption             $19        $59         $102        $198
Class C shares**
- --Assuming complete redemption
  at end of period                   $29        $58         $ 99        $215
- --Assuming no redemption             $19        $58         $ 99        $215
</TABLE>
    

- --------------------
 *Class B shares convert to Class A shares eight years after purchase;
  therefore, Class A expenses are used after year eight.
**Class C shares redeemed during the first year after purchase are subject to a
  1% CDSC.

   
     THE EXAMPLE IS DESIGNED FOR INFORMATION PURPOSES ONLY, AND SHOULD NOT BE
CONSIDERED A REPRESENTATION OF PAST OR FUTURE EXPENSES OR RETURN. ACTUAL FUND
EXPENSES AND RETURN WILL VARY FROM YEAR TO YEAR AND MAY BE HIGHER OR LOWER THAN
THOSE SHOWN.

     For further information regarding management fees, 12b-1 fees and other
expenses of the Fund, see "Management of the Fund," "Distribution Plans" and
"How To Buy Fund Shares" in this Prospectus and "Management of the Fund" and
"Underwriting Agreement and Distribution Plans" in the Statement of Additional
Information. The Fund's payment of a 12b-1 fee may result in long-term
shareholders paying more than the economic equivalent of the maximum sales
charge permitted under the Conduct Rules of the National Association of
Securities Dealers Inc.

     The maximum initial sales charge is reduced on purchases of specified
amounts of Class A shares and the value of shares owned in other Pioneer mutual
funds is taken into account in determining the applicable initial sales charge.
See "How to Buy Fund Shares." No sales charge is applied to exchanges of shares
of the Fund for shares of other publicly available Pioneer mutual funds. See
"How to Exchange Fund Shares."    


                                       2
                                        
<PAGE>

II. FINANCIAL HIGHLIGHTS
   
     The following information has been audited by Arthur Andersen LLP,
independent public accountants. Arthur Andersen LLP's report on the Fund's
financial statements as of December 31, 1997 appears in the Fund's Annual
Report which is incorporated by reference into the Statement of Additional
Information. The information listed below should be read in conjunction with
those financial statements. The Annual Report includes more information about
the Fund's performance and is available free of charge by calling Shareholder
Services at 1-800-225-6292.    

PIONEER FUND
   
SELECTED DATA FOR A CLASS A SHARE OUTSTANDING FOR EACH PERIOD:    

   
<TABLE>
<CAPTION>
                                                   YEAR ENDED DECEMBER 31,
                               ---------------------------------------------------------------
                                     1997           1996           1995           1994
                                    ------         ------         ------         ------
<S>                             <C>            <C>            <C>            <C>
Net asset value,                                                                             
 beginning of period .........      $26.89         $24.36         $21.32         $23.25
                                    ------         ------         ------         ------
Increase (decrease) from                                                      
 investment operations:                                                       
 Net investment income                                                        
  (loss) .....................      $ 0.30         $ 0.37         $ 0.49         $ 0.49
 Net realized and                                                             
  unrealized gain (loss)                                                      
  on investments and                                                          
  foreign currency                                                            
  transactions ...............        9.97           4.35           5.13          (0.63)
                                    ------         ------         ------         ------
 Net increase (decrease)                                                        
  from investment                                                               
  operations .................      $10.27         $ 4.72         $ 5.62         $(0.14)
Distributions to shareholders:                                                  
 Net investment income .......       (0.31)         (0.37)         (0.49)         (0.49)
 Net realized gain ...........       (1.90)         (1.82)         (2.09)         (1.30)
                                    ------         ------         ------         ------
Net increase (decrease) in                                                      
 net asset value .............      $ 8.06         $ 2.53         $ 3.04         $(1.93)
                                    ------         ------         ------         ------
Net asset value, end of                                                         
 period ......................      $34.95         $26.89         $24.36         $21.32
                                    ======         ======         ======         ======
Total return* ................       38.47%         19.70%         26.64%         (0.57%)
RATIOS/SUPPLEMENTAL DATA                                                        
Ratio of net expenses to                                                        
 average net assets ..........        1.03%+         1.01%+         0.95%+         0.94%
Ratio of net investment                                                         
 income (loss) to average                                                       
 net assets ..................        0.93%+         1.40%+         2.01%+         2.13%
Portfolio turnover rate ......          17%            25%            31%            20%
Average brokerage                                                                 
 commission per                                                                   
 share .......................     $0.0572        $0.0599             --             --
Net assets, end of period                                                         
 (in thousands) ..............  $3,991,726     $2,896,670     $2,466,098     $2,011,051
Ratios assuming reduction                                                             
 for fees paid indirectly:                                                            
 Net expenses ................        1.02%          0.99%          0.94%            --
 Net investment income                                                            
  (loss) .....................        0.94%          1.42%          2.02%            --

<CAPTION>
                                                                YEAR ENDED DECEMBER 31,
                               ------------------------------------------------------------------------------------------
                                     1993           1992           1991            1990           1989           1988
                                    ------         ------         ------          ------        ------        ------
<S>                             <C>            <C>            <C>             <C>           <C>           <C>
Net asset value,
 beginning of period .........      $21.51         $20.24         $18.79          $23.28        $20.34        $18.48
                                    ------         ------         ------          ------        ------        ------
Increase (decrease) from                                                                                   
 investment operations:                                                                                    
 Net investment income                                                                                     
  (loss) .....................      $ 0.47         $ 0.50         $ 0.61          $ 0.67        $ 0.61        $ 0.63
 Net realized and                                                                                          
  unrealized gain (loss)                                                                                   
  on investments and                                                                                       
  foreign currency                                                                                         
  transactions ...............        2.57           2.22           3.49           (3.10)         4.09          2.72
                                    ------         ------         ------          ------        ------        ------
 Net increase (decrease)                                                                                   
  from investment                                                                                          
  operations .................      $ 3.04         $ 2.72         $ 4.10          $(2.43)       $ 4.70        $ 3.35
Distributions to shareholders:                                                                             
 Net investment income .......       (0.47)         (0.50)         (0.61)          (0.67)         0.68)        (0.62)
 Net realized gain ...........       (0.83)         (0.95)         (2.04)          (1.39)        (1.08)        (0.87)
                                    ------         ------         ------          ------        ------        ------
Net increase (decrease) in                                                                                 
 net asset value .............      $ 1.74         $ 1.27         $ 1.45          $(4.49)       $ 2.94        $ 1.86
                                    ------         ------         ------          ------        ------        ------
Net asset value, end of                                                                                    
 period ......................      $23.25         $21.51         $20.24          $18.79        $23.28        $20.34
                                    ======         ======         ======          ======        ======        ======
Total return* ................       14.23%         13.60%         22.76%         (10.52%)       23.39%        18.33%
RATIOS/SUPPLEMENTAL DATA                                                                                   
Ratio of net expenses to                                                                                   
 average net assets ..........        0.95%          0.98%          0.87%           0.78%         0.75%         0.76%
Ratio of net investment                                                                                    
 income (loss) to average                                                                                  
 net assets ..................        2.04%          2.33%          2.87%           3.15%         2.60%         3.03%
Portfolio turnover rate ......          12%            13%            22%             17%            6%           11%
Average brokerage                                                                                          
 commission per                                                                                            
 share .......................          --             --             --              --            --            --
Net assets, end of period                                                                                  
 (in thousands) ..............  $2,042,945     $1,786,031     $1,614,567      $1,395,520    $1,618,320    $1,409,755
Ratios assuming reduction                                                                                  
 for fees paid indirectly:                                                                                 
 Net expenses ................          --             --             --              --            --            --
 Net investment income                                                                                     
  (loss) .....................          --             --             --              --            --            --
</TABLE>                         
    

- ----------------
+  Ratios assuming no reduction for fees paid indirectly.

*  Assumes initial investment at net asset value at the beginning of each
   period, reinvestment of all dividends and distributions, and the complete
   redemption of the investment at the net asset value at the end of each period
   and no sales charges. Total return would be reduced if sales charges were
   taken into account.

       
                                       3
                                        
<PAGE>

II. FINANCIAL HIGHLIGHTS (continued)
 
   
SELECTED DATA FOR A CLASS B SHARE OUTSTANDING FOR EACH PERIOD PRESENTED:    

   
<TABLE>
<CAPTION>
                                                                       FOR THE YEAR ENDED             JULY 1, 1996     
                                                                          DECEMBER 31,                     TO          
                                                                              1997                DECEMBER 31, 1996(a) 
                                                                      --------------------       --------------------- 
<S>                                                                       <C>                          <C>            
Net asset value, beginning of period ................................     $ 27.02                      $ 26.40        
                                                                          -------                       ------        
Increase (decrease) from investment operations:                                                                       
 Net investment income (loss) .......................................     $  0.01                      $  0.07        
 Net realized and unrealized gain (loss) on investments and                                                           
  foreign currency transactions                                              9.99                         2.50        
                                                                          -------                       ------        
 Net increase (decrease) from investment operations .................     $ 10.00                      $  2.57        
                                                                          -------                       ------        
Distributions to shareholders:                                                                                        
 Net investment income ..............................................       (0.11)                       (0.07)       
 In excess of net investment income .................................          --                        (0.06)       
 Net realized gain ..................................................       (1.90)                       (1.82)       
                                                                          -------                       ------        
Net increase (decrease) in net asset value ..........................     $  7.99                      $  0.62        
                                                                          -------                       ------        
Net asset value, end of period ......................................     $ 35.01                      $ 27.02        
                                                                          =======                       ======        
Total return* .......................................................       37.19%                        9.92%       
RATIOS/SUPPLEMENTAL DATA                                                                                            
Ratio of net expenses to average net assets .........................        1.92%+                       1.82%**+    
Ratio of net investment income (loss) to average net assets .........       (0.02)%+                      0.46%**+    
Portfolio turnover rate .............................................          17%                          25%       
Average brokerage commission per share ..............................     $0.0572                      $0.0599        
Net assets, end of period (in thousands) ............................      53,010                      $ 8,940        
Ratios assuming reduction for fees paid indirectly:                                                                  
 Net expenses .......................................................        1.88%                        1.80%**     
 Net investment income (loss) .......................................        0.02%                        0.48%**     
</TABLE>     
    

- ----------------
   
 (a) Per share data based upon average shares outstanding for the period
     presented.    
  *  Assumes initial investment at net asset value at the beginning of each
     period, reinvestment of all distributions, the complete redemption of the
     investment at net asset value at the end of each period and no sales
     charges. Total return would be reduced if sales charges were taken into
     account.
   
 **  Annualized.
  +  Ratios assuming no reduction for fees paid indirectly.    

                                       4
                                        
<PAGE>

II. FINANCIAL HIGHLIGHTS (continued)
 
   
SELECTED DATA FOR A CLASS C SHARE OUTSTANDING FOR EACH PERIOD PRESENTED:    

   
<TABLE>
<CAPTION>
                                                                       FOR THE YEAR ENDED           JULY 1, 1996      
                                                                          DECEMBER 31,                   TO           
                                                                             1997(a)            DECEMBER 31, 1996(a)  
                                                                      --------------------     ---------------------  
<S>                                                                        <C>                        <C>            
Net asset value, beginning of period ................................      $ 26.74                    $ 26.40        
                                                                            ------                    -------        
Increase (decrease) from investment operations:                                                                      
 Net investment income (loss) .......................................      $  0.02                    $  0.03        
 Net realized and unrealized gain (loss) on investments and               
   foreign currency transactions                                              9.89                       2.23        
                                                                            ------                    -------        
 Net increase (decrease) from investment operations .................      $  9.91                    $  2.26        
                                                                            ------                    -------        
Distributions to shareholders:                                                                                       
 Net investment income ..............................................        (0.09)                     (0.03)     
 In excess of net investment income .................................           --                      (0.07)     
 Net realized gain ..................................................        (1.90)                     (1.82)     
                                                                            ------                    -------        
Net increase (decrease) in net asset value ..........................      $  7.92                    $  0.34        
                                                                            ------                    -------        
Net asset value, end of period ......................................      $ 34.66                    $ 26.74        
                                                                           =======                    =======      
Total return* .......................................................        37.25%                      8.74%    
RATIOS/SUPPLEMENTAL DATA                                                                                          
Ratio of net expenses to average net assets .........................         1.87%+                     2.11%**+ 
Ratio of net investment income (loss) to average net assets .........         0.02%+                    0.20%* + 
Portfolio turnover rate .............................................           17%                        25%     
Average brokerage commission per share ..............................      $0.0572                    $0.0599      
Net assets, end of period (in thousands) ............................      $ 8,261                    $ 1,831      
Ratios assuming reduction for fees paid indirectly:                                                                  
 Net expenses .......................................................         1.83%                     2.08%**  
 Net investment income (loss) .......................................         0.06%                     0.23%**  
</TABLE>        
           

- -----------------
   
 (a) Per share data based upon average shares outstanding for the period
     presented.    
  *  Assumes initial investment at net asset value at the beginning of each
     period, reinvestment of all distributions, the complete redemption of the
     investment at net asset value at the end of each period and no sales
     charges. Total return would be reduced if sales charges were taken into
     account.
   
 **  Annualized.
  +  Ratios assuming no reduction for fees paid indirectly.    

                                       5
                                        
<PAGE>

III. INVESTMENT OBJECTIVES AND POLICIES
     THE INVESTMENT OBJECTIVES OF THE FUND ARE REASONABLE INCOME AND GROWTH OF
CAPITAL. The Fund seeks these objectives by investing in a broad list of
carefully selected, reasonably priced securities rather than investing in
securities whose prices reflect a premium from their current market popularity.
Most of the Fund's assets are invested in common stocks and other equity
securities such as preferred stocks and securities convertible into common
stock, but the Fund may also invest in debt securities and cash equivalent
investments.
   
     The largest portions of the Fund's portfolio are invested in securities
that have paid dividends within the preceding 12 months, but some non-income
producing securities are held for anticipated increases in value. Assets of the
Fund are substantially fully invested at all times because management avoids
speculating on broad changes in the level of the market.

     Whenever the Fund wishes to obtain funds not otherwise available for the
purchase of an attractive security, it pursues the policy of selling that
security in its portfolio which seems the least attractive security owned. The
resulting rate of turnover of the portfolio is not considered an important
factor. See "Financial Highlights" for actual portfolio turnover rates. The
Fund does not purchase and sell securities for short-term profits; however,
securities are sold without regard to the time they have been held whenever
selling seems advisable.

     The Fund may enter into repurchase agreements with banks and
broker-dealers, generally not exceeding seven days. Such repurchase agreements
will be fully collateralized with U.S. Treasury and/or agency obligations with
a market value of not less than 100% of the obligation, valued daily.
Collateral will be held in a segregated, safekeeping account for the benefit of
the Fund. In the event that a repurchase agreement is not fulfilled, the Fund
could suffer a loss to the extent that the value of the collateral falls below
the repurchase price.

     The Fund may write (sell) covered call options in standard contracts
traded on national securities exchanges or those which may be quoted on the
Nasdaq Stock Market, provided that it continues to own the securities covering
each call until the call has been exercised or has expired, or until the Fund
has purchased a closing call to offset the obligation to deliver securities for
the call it has written. The Fund does not expect to write (sell) covered call
options with an aggregate market value exceeding 5% of the Fund's total assets
in the current year. See the Statement of Additional Information for
information regarding the Fund's ability to write (sell) covered call options.
    

     The Fund may invest in foreign securities if purchases of such securities
are otherwise consistent with the fundamental policies of the Fund. As a matter
of practice, however, the Fund does not invest in foreign securities if there
appears to be a substantial risk to the issuer of such securities of
nationalization, confiscation or other national restrictions. While there is no
requirement to do so, the Fund intends to limit its investments in foreign
securities to no more than 10% of its total assets. In connection with its
investments in foreign securities and in order to protect itself against
uncertainty in future exchange rates, the Fund may engage in foreign currency
exchange transactions.

   
     Investing in securities of foreign companies involves certain
considerations and risks which are not typically associated with investing in
securities of U.S. companies. Foreign companies are not subject to uniform
accounting, auditing and financial standards and requirements comparable to
those applicable to U.S. companies. There may also be less publicly available
information about foreign companies compared to reports and ratings published
about U.S. companies. In addition, foreign securities markets have
substantially less volume than U.S. markets and securities of some foreign
companies are less liquid and more volatile than securities of comparable U.S.
companies. There may also be less government supervision and regulation of
foreign securities exchanges, brokers and listed companies than exists in the
U.S. Dividends or interest, or in some cases capital gains, from foreign
investments may be subject to withholding or other foreign taxes which will
decrease the net return on such investments as compared to the return on the
Fund's U.S. investments. Finally, there may be the possibility of
expropriations, confiscatory taxation, political, economic or social
instability or diplomatic developments which could adversely affect assets of
the Fund held in foreign countries. The value of foreign securities may also be
adversely affected by fluctuations in the relative rates of exchange between
the currencies of different nations and by exchange control regulations.

     The Fund's fundamental investment objectives and the fundamental
investment restrictions set forth in the Statement of Additional Information
may not be changed without shareholder approval. Certain other investment
policies, strategies and restrictions on investment are noted throughout the
Prospectus and are set forth in the Statement of Additional Information. These
non-fundamental investment policies, strategies and restrictions may be changed
at any time by a vote of the Board of Trustees. Other investment policies and
restrictions on investments are described in the Statement of Additional
Information, including warrants, a policy on lending portfolio securities and a
restriction that the Fund will not invest more than 5% of its net assets in
debt securities, including convertible securities, which are rated less than
investment grade or the equivalent. Since all investments are subject to
inherent market risks and fluctuations in value due to earnings, economic
conditions and other factors, the Fund cannot assure that its investment
objectives will be achieved.    

IV. MANAGEMENT OF THE FUND
   
     The Fund's Board of Trustees has overall responsibility for management and
supervision of the Fund. The Board meets at least quarterly. By virtue of the
functions performed by Pioneering Management Corporation ("PMC") as investment
adviser, the Fund requires no employees other than its executive officers, all
of whom receive their compensation from PMC or other sources. The Statement of
Additional Information contains the name of and general background information
of each Trustee and executive officer of the Fund.

     The Fund is managed under a contract with PMC. PMC serves as investment
adviser to the Fund and is responsible for the overall management of the Fund's
business affairs, subject only to the authority of the Board of Trustees. PMC
is a wholly owned subsidiary of The Pioneer Group, Inc. ("PGI"), a publicly
traded    
                                       6
<PAGE>

   
Delaware corporation. PGI's indirect wholly owned subsidiary, Pioneer Funds
Distributor, Inc. ("PFD"), is the principal underwriter of shares of the Fund.

     Mr. David Tripple, President and Chief Investment Officer of PMC and
Executive Vice President of each Pioneer mutual fund, has general
responsibility for PMC's investment operations and chairs a committee of PMC's
U.S. equity portfolio managers which reviews PMC's research and portfolio
operations, including those of the Fund. Mr. Tripple joined PMC in 1974.

     The Fund is covered by a team of portfolio managers and analysts which
does research for and oversees the management of several funds with similar
objectives. Members of the team meet regularly to discuss holdings, prospective
investments and portfolio composition. Theresa Hamacher, Senior Vice President
of PMC, oversees U.S. equity research and portfolio management.

     Day-to-day management of the Fund is the responsibility of Mr. John A.
Carey, Vice President of the Fund and PMC, since July 1986. Mr. Carey joined
PMC in 1979 and has 19 years of investment experience.

     John F. Cogan, Jr., Chairman and President of the Fund, President and a
Director of PGI, and Chairman and a Director of PMC and PFD, owned
approximately 14% of the outstanding capital stock of PGI as of the date of
this Prospectus.    

     In addition to the Fund, PMC also manages and serves as the investment
adviser for other mutual funds and is an investment adviser to certain other
institutional accounts. PMC's and PFD's executive offices are located at 60
State Street, Boston, Massachusetts 02109. In an effort to avoid conflicts of
interest with the Fund, the Fund and PMC have adopted a Code of Ethics that is
designed to maintain a high standard of personal conduct by directing that all
personnel defer to the interests of the Fund and its shareholders in making
personal securities transactions.

   
     Under the terms of its contract with the Fund, PMC assists in the
management of the Fund and is authorized in its discretion to buy and sell
securities for the account of the Fund. PMC pays all the expenses, including
executive salaries and the rental of office space, relating to its services for
the Fund, with the exception of the following, which are paid by the Fund: (a)
charges and expenses for fund accounting, pricing and appraisal services and
related overhead, including, to the extent such services are performed by
personnel of PMC or its affiliates, office space and facilities and personnel
compensation, training and benefits; (b) the charges and expenses of auditors;
(c) the charges and expenses of any custodian, transfer agent, plan agent,
dividend disbursing agent and registrar appointed by the Fund; (d) issue and
transfer taxes chargeable to the Fund in connection with securities
transactions to which the Fund is a party; (e) insurance premiums, interest
charges, dues and fees for membership in trade associations, and all taxes and
corporate fees payable by the Fund to federal, state or other governmental
agencies; (f) fees and expenses involved in registering and maintaining
registrations of the Fund and/or its shares with the SEC, individual states or
blue sky securities agencies, territories and foreign countries, including the
preparation of Prospectuses and Statements of Additional Information for filing
with regulatory agencies; (g) all expenses of shareholders' and Trustees'
meetings and of preparing, printing and distributing prospectuses, notices,
proxy statements and all reports to shareholders and to governmental agencies;
(h) charges and expenses of legal counsel to the Fund and the Trustees; (i)
distribution fees paid by the Fund in accordance with Rule 12b-1 promulgated by
the SEC pursuant to the Investment Company Act of 1940, as amended (the "1940
Act"); (j) compensation of those Trustees of the Fund who are not affiliated
with or interested persons of PMC, the Fund (other than as Trustees), PGI or
PFD; (k) the cost of preparing and printing share certificates; and (l)
interest on borrowed money, if any. The Fund also pays all brokers' and
underwriting commissions chargeable to the Fund in connection with its
portfolio transactions.

     Orders for the Fund's portfolio securities transactions are placed by PMC,
which strives to obtain the best price and execution for each transaction. In
circumstances in which two or more broker-dealers are in a position to offer
comparable prices and execution, consideration may be given to whether the
broker-dealer provides brokerage or research services or sells shares of any
Pioneer mutual fund or other funds for which PMC or any affiliate serves as
investment adviser or manager. See the Statement of Additional Information for
a further description of PMC's brokerage allocation practices.    

MANAGEMENT FEE

     As compensation for its management services and certain expenses which PMC
incurs on behalf of the Fund, the Fund pays PMC a management fee that is
comprised of two components. The first component is a basic fee equal to 0.60%
per annum of the Fund's average daily net assets (the "Basic Fee"). The second
component is a performance fee adjustment.

   
     COMPUTING THE PERFORMANCE FEE ADJUSTMENT. The Basic Fee is subject to an
upward or downward adjustment, depending on whether, and to what extent, the
investment performance of the Class A shares of the Fund for the performance
period exceeds, or is exceeded by, the record of the index determined by the
Fund to be appropriate over the same period. The Trustees have designated the
Lipper Growth and Income Funds Index (the "Index") for this purpose. The Index
represents the arithmetic mean performance (i.e., equally weighted) of the 30
largest funds with a growth and income investment objective.    

     The performance period consists of the current month and the prior 35
months ("performance period"). Each percentage point of difference (up to a
maximum of +/-10) is multiplied by a performance adjustment rate of 0.01%. Thus,
the maximum annualized adjustment rate is +/-0.10%. This performance comparison
is made at the end of each month. An appropriate percentage of this rate (based
upon the number of days in the current month) is then multiplied by the Fund's
average net assets for the entire performance period, giving a dollar amount
that will be added to (or subtracted from) the Basic Fee.

     The Fund's performance is calculated based on the net asset value per
share of its Class A shares. For purposes of calculating the performance
adjustment, any dividends or capital gains distributions paid by the Fund are
treated as if reinvested in the Fund's Class A shares at the net asset

                                       7
<PAGE>

   
value per share as of the record date for payment. The record for the Index is
based on change in value and is adjusted for any cash distributions from the
mutual funds comprising the Index.    

     Because the adjustment to the Basic Fee is based on the comparative
performance of the Class A shares of the Fund and the record of the Index, the
controlling factor is not whether performance is up or down, but whether it is
up or down more or less than the record of the Index. Moreover, the comparative
investment record of the Class A shares of the Fund is based solely on the
relevant performance period without regard to the cumulative performance over a
longer or shorter period of time.

     From time to time, the Trustees may determine that another securities
index is a more appropriate benchmark than the Index for purposes of evaluating
the performance of the Fund. In such event, a successor index may be
substituted for the Index. However, the calculation of the performance
adjustment for any portion of the performance period prior to the adoption of
the successor index would still be based upon the Fund's performance compared
to the Index.

   
     The Fund's current management contract with PMC became effective May 1,
1996. Under the terms of the contract, the Fund pays management fees at a rate
equal to the Basic Fee plus or minus the amount of the performance adjustment
for the current month and the preceding 35 months. At the end of each
succeeding month, the performance period will roll forward one month so that it
is always a 36-month period consisting of the current month and the prior 35
months as described above. If including the initial rolling performance period
(that is, the period prior to the effectiveness of the management contract) has
the effect of increasing the Basic Fee for any month, such aggregate prior
results will be treated as Index neutral for purposes of calculating the
performance adjustment for such month. Otherwise, the performance adjustment
will be made as described above.

     The Basic Fee is computed daily, the performance fee adjustment is
calculated once per month and the entire management fee is normally paid
monthly. See "Expense Information" in this Prospectus and "Investment Adviser"
in the Statement of Additional Information.

     Certain information technology experts currently predict the possibility
of a widespread failure of computer systems and certain other equipment which
will be triggered on or after certain dates--primarily January 1, 2000--due to
a systemic inability to process date-related information. This scenario,
commonly known as the "Year 2000 Problem," could have an adverse impact on
individuals and businesses, including the Fund and other mutual funds and
financial organizations. PMC and its affiliates are taking steps believed to be
adequate to address the Year 2000 Problem with respect to the systems and
equipment controlled by the Fund's investment adviser, broker-dealer and
transfer agent. In addition, other entities providing services to the Fund and
its shareholders are being asked to provide assurances that they have
undertaken similar measures with respect to their systems and equipment.
Although PMC is not expecting any adverse impact on it or its clients from the
Year 2000 Problem, it cannot provide complete assurances that its efforts or
the efforts of its key vendors will be successful.

V. FUND SHARE ALTERNATIVES    
     The Fund continuously offers three Classes of shares designated as Class
A, Class B and Class C shares, as described more fully in "How to Buy Fund
Shares." If you do not specify in your instructions to the Fund which Class of
shares you wish to purchase, exchange or redeem, the Fund will assume that your
instructions apply to Class A shares.

     CLASS A SHARES. If you invest less than $1 million in Class A shares, you
will pay an initial sales charge. Certain purchases may qualify for reduced
initial sales charges. If you invest $1 million or more in Class A shares, no
sales charge will be imposed at the time of purchase; however, shares redeemed
within 12 months of purchase may be subject to a CDSC. Class A shares are
subject to distribution and service fees at a combined annual rate of up to
0.25% of the Fund's average daily net assets attributable to Class A shares.

     CLASS B SHARES. If you plan to invest up to $250,000, Class B shares are
available to you. Class B shares are sold without an initial sales charge, but
are subject to a CDSC of up to 4% if redeemed within six years. Class B shares
are subject to distribution and service fees at a combined annual rate of 1.00%
of the Fund's average daily net assets attributable to Class B shares. Your
entire investment in Class B shares is available to work for you from the time
you make your investment, but the higher distribution fee paid by Class B
shares will cause your Class B shares (until conversion) to have a higher
expense ratio and to pay lower dividends, to the extent dividends are paid,
than Class A shares. Class B shares will automatically convert to Class A
shares, based on relative net asset value, eight years after the initial
purchase.

     CLASS C SHARES. Class C shares are sold without an initial sales charge,
but are subject to a 1% CDSC if they are redeemed within the first year after
purchase. Class C shares are subject to distribution and service fees at a
combined annual rate of up to 1.00% of the Fund's average daily net assets
attributable to Class C shares. Your entire investment in Class C shares is
available to work for you from the time you make your investment, but the
higher distribution fee paid by Class C shares will cause your Class C shares
to have a higher expense ratio and to pay lower dividends, to the extent
dividends are paid, than Class A shares. Class C shares have no conversion
feature.

     SELECTING A CLASS OF SHARES. The decision as to which Class to purchase
depends on the amount you invest, the intended length of the investment and
your personal situation. If you are making an investment that qualifies for
reduced sales charges, you might consider Class A shares. If you prefer not to
pay an initial sales charge on an investment of $250,000 or less and you plan
to hold the investment for at least six years, you might consider Class B
shares. If you prefer not to pay an initial sales charge and you plan to hold
your investment for one to eight years, you may prefer Class C shares.

     Investment dealers or their representatives may receive different
compensation depending on which Class of shares

                                       8
<PAGE>

   
they sell. Shares may be exchanged only for shares of the same Class of another
Pioneer mutual fund, and shares acquired in the exchange will continue to be
subject to any CDSC applicable to the shares of the Pioneer mutual fund
originally purchased. Shares sold outside the U.S. to persons who are not U.S.
citizens may be subject to different sales charges, CDSCs and dealer
compensation arrangements in accordance with local laws and business practices.
    

VI. SHARE PRICE
   
     Shares of the Fund are sold at the public offering price, which is the net
asset value per share, plus any applicable sales charge. Net asset value per
share of a Class of the Fund is determined by dividing the value of its assets,
less liabilities attributable to that Class, by the number of shares of that
Class outstanding. The net asset value is computed once daily, on each day the
New York Stock Exchange (the "Exchange") is open, as of the close of regular
trading on the Exchange.

     Securities are valued at the last sale price on the principal exchange or
market where they are traded. Securities which have not traded on the date of
valuation or securities for which sales prices are not generally reported are
valued at the mean between the current bid and asked prices. Securities quoted
in foreign currencies are converted to U.S. dollars utilizing foreign exchange
rates employed by the Fund's independent pricing services. Generally, trading
in foreign securities is substantially completed each day at various times
prior to the close of regular trading on the Exchange. The values of such
securities used in computing the net asset value of the Fund's shares are
determined as of such times. Foreign currency exchange rates are also generally
determined prior to the close of regular trading on the Exchange. Occasionally,
events which affect the values of such securities and such exchange rates may
occur between the times at which they are determined and the close of regular
trading on the Exchange and will therefore not be reflected in the computation
of the Fund's net asset value. If events materially affecting the value of such
securities occur during such period, then these securities may be valued at
their fair value as determined in good faith by the Trustees. All assets of the
Fund for which there is no other readily available valuation method are valued
at their fair value as determined in good faith by the Trustees.    

VII. HOW TO BUY FUND SHARES
     YOU MAY BUY FUND SHARES FROM ANY SECURITIES BROKER-DEALER WHICH HAS A SALES
AGREEMENT WITH PFD. IF YOU DO NOT HAVE A SECURITIES BROKER-DEALER, PLEASE CALL
1-800-225-6292. SHARES WILL BE PURCHASED AT THE PUBLIC OFFERING PRICE, THAT IS,
THE NET ASSET VALUE PER SHARE NEXT COMPUTED AFTER RECEIPT OF A PURCHASE ORDER,
PLUS ANY APPLICABLE SALES CHARGE, EXCEPT AS SET FORTH BELOW.
   
     The minimum initial investment is $50 for Class A share accounts and
$1,000 for Class B and Class C share accounts, except as specified below.
Separate minimum investment requirements apply to retirement plans and to
telephone and wire orders placed by broker-dealers; no sales charges or minimum
investment requirements apply to the reinvestment of dividends or capital gains
distributions. The minimum subsequent investment is $50 for Class A shares and
$500 for Class B and Class C shares, except that the subsequent minimum
investment for Class B and Class C share accounts may be as little as $50 if an
automatic investment plan is established (see "Automatic Investment Plans").    

     The Fund has a minimum Class A account requirement of $500. As a new
purchaser, you will be given at least 24 months from your initial purchase to
increase the value of the Class A account to $500. See "How to Sell Fund
Shares."

   
     TELEPHONE PURCHASES. Your account is automatically authorized to have the
telephone purchase privilege unless you indicate otherwise on your Account
Application or by writing to Pioneering Services Corporation ("PSC"). The
telephone purchase option may be used to purchase additional shares for an
existing Pioneer mutual fund account; it may not be used to establish a new
account. Proper account identification will be required for each telephone
purchase. A maximum of $25,000 per account may be purchased by telephone each
day. The telephone purchase privilege is available to Individual Retirement
Accounts ("IRAs") but may not be available to other types of retirement plan
accounts. Call PSC for more information.    

     YOU ARE STRONGLY URGED TO CONSULT WITH YOUR FINANCIAL REPRESENTATIVE PRIOR
TO REQUESTING A TELEPHONE PURCHASE. To purchase shares by telephone, you must
establish your bank account of record by completing the appropriate section of
your Account Application or an Account Options Form. PSC will electronically
debit the amount of each purchase from this predesignated bank account.
Telephone purchases may not be made for 30 days after the establishment of your
bank of record or any change to your bank information.
   
     Telephone purchases will be priced at the net asset value plus any
applicable sales charge next determined after PSC's receipt of a telephone
purchase instruction and receipt of good funds (usually three days after the
purchase instruction). You may always elect to deliver purchases to PSC
by mail. See "Telephone Transactions" for additional
information.    

CLASS A SHARES
     You may buy Class A shares at the public offering price, including a sales
charge as follows:

   

                         SALES CHARGE AS A PERCENTAGE OF           DEALER
                         -------------------------------        ALLOWANCE AS
                                               NET            A PERCENTAGE OF
                          OFFERING           AMOUNT              OFFERING
   AMOUNT OF PURCHASE       PRICE           INVESTED               PRICE
- ------------------------  ----------       ----------        ----------------
Less than $50,000            5.75%            6.10%                5.00%
$50,000 but less than                                             
  $100,000                   4.50             4.71                 4.00
$100,000 but less than                                            
  $250,000                   3.50             3.63                 3.00
$250,000 but less than                                            
  $500,000                   2.50             2.56                 2.00
$500,000 but less than                                            
  $1,000,000                 2.00             2.04                 1.75
$1,000,000 or more            -0-              -0-               see below

    

   
     The schedule of sales charges above is applicable to purchases of Class A
shares of the Fund by (i) an individual, (ii) an individual and his or her
spouse and children under the    

                                       9
                                        
<PAGE>

   
age of 21 and (iii) a trustee or other fiduciary of a trust estate or fiduciary
account or related trusts or accounts including pension, profit-sharing and
other employee benefit trusts qualified under Section 401 or 408 of the
Internal Revenue Code of 1986, as amended (the "Code"), although more than one
beneficiary is involved. The sales charges applicable to a current purchase of
Class A shares of the Fund by a person listed above is determined by adding the
value of shares to be purchased to the aggregate value (at the then current
offering price) of shares of any of the other Pioneer mutual funds previously
purchased and then owned, provided PFD is notified by such person or his or her
broker-dealer each time a purchase is made which would qualify. Pioneer mutual
funds include all mutual funds for which PFD serves as principal underwriter.
At the sole discretion of PFD, holdings of funds domiciled outside the U.S.,
but which are managed by affiliates of PMC, may be included for this purpose.

     No sales charge is payable at the time of purchase on investments of $1
million or more or on purchases by participants in certain group plans
(discussed below) subject to a CDSC of 1% which may be imposed in the event of
a redemption of Class A shares within 12 months of purchase. See "How to Sell
Fund Shares." PFD may, in its discretion, pay a commission to broker-dealers
who initiate and are responsible for such purchases as follows: 1% on the first
$5 million invested; 0.50% on the next $45 million; and 0.25% on the excess
over $50 million. These commissions will not be paid if the purchaser is
affiliated with the broker-dealer or if the purchase represents the
reinvestment of a redemption made during the previous 12 calendar months.
Broker-dealers who receive a commission in connection with Class A share
purchases at net asset value by 401(a) or 401(k) retirement plans with 1,000 or
more eligible participants or with at least $10 million in plan assets will be
required to return any commission paid or a pro rata portion thereof if the
retirement plan redeems its shares within 12 months of purchase. See also "How
to Sell Fund Shares." In connection with PGI's acquisition of Mutual of Omaha
Fund Management Company and contingent upon the achievement of certain sales
objectives, PFD may pay to Mutual of Omaha Investor Services, Inc. 50% of PFD's
retention of any sales commission on sales of the Fund's Class A shares through
such dealer. From time to time, PFD may elect to reallow the entire initial
sales charge to participating dealers for all sales of Class A shares with
respect to which orders are placed during a particular period. Dealers to whom
substantially the entire sales charge is reallowed may be deemed to be
underwriters under the federal securities laws.    

     QUALIFYING FOR A REDUCED SALES CHARGE. Class A shares of the Fund may be
sold at a reduced or eliminated sales charge to certain group plans ("Group
Plans") under which a sponsoring organization makes recommendations to, permits
group solicitation of, or otherwise facilitates purchases by, its employees,
members or participants. Class A shares of the Fund may be sold to 401(k)
retirement plans with 100 or more participants or at least $500,000 in plan
assets. Information about such arrangements is available from PFD.

   
     Class A shares of the Fund may also be sold at net asset value per share
without a sales charge to: (a) current or former Trustees and officers of the
Fund and partners and employees of its legal counsel; (b) current or former
directors, officers, employees or sales representatives of PGI or its
subsidiaries; (c) current or former directors, officers, employees or sales
representatives of any subadviser or predecessor investment adviser to any
investment company for which PMC serves as investment adviser, and the
subsidiaries or affiliates of such persons; (d) current or former officers,
partners, employees or registered representatives of broker-dealers which have
entered into sales agreements with PFD; (e) members of the immediate families
of any of the persons above; (f) any trust, custodian, pension, profit-sharing
or other benefit plan of the foregoing persons; (g) insurance company separate
accounts; (h) certain "wrap accounts" for the benefit of clients of financial
planners adhering to standards established by PFD; (i) other funds and accounts
for which PMC or any affiliate serves as investment adviser or manager; and (j)
certain unit investment trusts. Shares so purchased are purchased for
investment purposes only and may not be resold except through redemption or
repurchase by or on behalf of the Fund. The availability of this privilege is
conditioned upon the receipt by PFD of written notification of eligibility.

     Class A shares of the Fund may be sold at net asset value per share
without a sales charge to Optional Retirement Program (the "Program")
participants if (i) the employer has authorized a limited number of investment
company providers for the Program, (ii) all authorized investment company
providers offer their shares to Program participants at net asset value, (iii)
the employer has agreed in writing to actively promote the authorized
investment providers to Program participants and (iv) the Program provides for
a matching contribution for each participant contribution. Class A shares of
the Fund may also be sold at net asset value without a sales charge in
connection with certain reorganization, liquidation or acquisition transactions
involving other investment companies or personal holding companies.    

     Reduced sales charges are available for purchases of $50,000 or more of
Class A shares (excluding any reinvestments of dividends and capital gains
distributions) made within a 13-month period pursuant to a Letter of Intent
("LOI") which may be established by completing the Letter of Intent section of
the Account Application. The reduced sales charge will be the charge that would
be applicable to the purchase of the specified amount of Class A shares as if
the shares had all been purchased at the same time. A purchase not made
pursuant to an LOI may be included if the LOI is submitted to PSC within 90
days of such purchase. You may also obtain the reduced sales charge by
including the value (at current offering price) of all your Class A shares in
the Fund and all other Pioneer mutual funds held of record as of the date of
your LOI in the amount used to determine the applicable sales charge for the
Class A shares to be purchased under the LOI. Five percent of your total
intended purchase amount will be held in escrow by PSC, registered in your
name, until the terms of the LOI are fulfilled.

     You are not obligated to purchase the amount specified in your LOI. If,
however, the amount actually purchased during the 13-month period is more or
less than that indicated in your LOI, an adjustment in the sales charge will be
made. If a


                                       10
                                        
<PAGE>

   
payment to cover actual sales charges is due, it must be paid to PFD within 20
days after PFD or your dealer sends you a written request otherwise PFD will
direct PSC to liquidate sufficient shares from your escrow account to cover the
amount due. See the Statement of Additional Information for more information.

     Investors who are clients of a broker-dealer with a current sales
agreement with PFD may purchase Class A shares of the Fund at net asset value,
without a sales charge, to the extent that the purchase price is paid out of
proceeds from one or more redemptions by the investor of shares of certain
other mutual funds. In order for a purchase to qualify for this privilege, the
investor must document to the broker-dealer that the redemption occurred within
the 60 days immediately preceding the purchase of Class A shares; that the
client paid a sales charge on the original purchase of the shares redeemed; and
that the mutual fund whose shares were redeemed also offers net asset value
purchases to redeeming shareholders of any of the Pioneer mutual funds. Further
details may be obtained from PFD.    

CLASS B SHARES
     You may buy Class B shares at the net asset value per share next computed
after receipt of a purchase order without the imposition of an initial sales
charge; however, Class B shares redeemed within six years of purchase will be
subject to a CDSC at the rates shown in the table below. The charge will be
assessed on the amount equal to the lesser of the current market value or the
original purchase cost of the shares being redeemed. No CDSC will be imposed on
increases in account value above the initial purchase price, including shares
derived from the reinvestment of dividends or capital gains distributions.

     The amount of the CDSC, if any, will vary depending on the number of years
from the time of purchase until the time of redemption of Class B shares. For
the purpose of determining the number of years from the time of any purchase,
all payments during a quarter will be aggregated and deemed to have been made
on the first day of that quarter. In processing redemptions of Class B shares,
the Fund will first redeem shares not subject to any CDSC, and then shares held
longest during the six-year period. As a result, you will pay the lowest
possible CDSC.

     The CDSC for Class B shares subject to a CDSC upon redemption will be
determined as follows:

YEAR SINCE                          CDSC AS A PERCENTAGE OF DOLLAR
 PURCHASE                               AMOUNT SUBJECT TO CDSC
- ----------                          ------------------------------
First ..........................                  4.0%
Second .........................                  4.0%
Third ..........................                  3.0%
Fourth .........................                  3.0%
Fifth ..........................                  2.0%
Sixth ..........................                  1.0%
Seventh and thereafter .........                  none

     Proceeds from the CDSC are paid to PFD and are used in whole or in part to
defray PFD's expenses related to providing distribution-related services to the
Fund in connection with the sale of Class B shares, including the payment of
compensation to broker-dealers.
   
     Class B shares will automatically convert into Class A shares at the
beginning of the calendar quarter that is eight years after the purchase date,
except as noted below. Class B shares acquired by exchange from Class B shares
of another Pioneer mutual fund will convert into Class A shares based on the
date of the initial purchase and the applicable CDSC. Class B shares acquired
through reinvestment of distributions will convert into Class A shares based on
the date of the initial purchase to which such shares relate. For this purpose,
Class B shares acquired through reinvestment of distributions will be attributed
to particular purchases of Class B shares in accordance with such procedures as
the Trustees may determine from time to time. The conversion of Class B shares
to Class A shares is subject to the continuing availability of a ruling from the
Internal Revenue Service (the "IRS") that such conversions will not constitute
taxable events for federal tax purposes. The conversion of Class B shares to
Class A shares will not occur if such ruling is not available and, therefore,
Class B shares would continue to be subject to higher expenses than Class A
shares for an indeterminate period.    

CLASS C SHARES
   
     You may buy Class C shares at net asset value per share next computed
after receipt of a purchase order without the imposition of an initial sales
charge; however, Class C shares redeemed within one year of purchase will be
subject to a CDSC of 1.00%. The charge will be assessed on the amount equal to
the lesser of the current market value or the original purchase cost of the
shares being redeemed. No CDSC will be imposed on increases in account value
above the initial purchase price, including shares derived from the
reinvestment of dividends or capital gains distributions. Class C shares do not
convert to any other Class of Fund shares.    

     For the purpose of determining the time of any purchase, all payments
during a quarter will be aggregated and deemed to have been made on the first
day of that quarter. In processing redemptions of Class C shares, the Fund will
first redeem shares not subject to any CDSC, and then shares held for the
shortest period of time during the one-year period. As a result, you will pay
the lowest possible CDSC.

     Proceeds from the CDSC are paid to PFD and are used in whole or in part to
defray PFD's expenses related to providing distribution-related services to the
Fund in connection with the sale of Class C shares, including the payment of
compensation to broker-dealers.
   
     WAIVER OR REDUCTION OF CONTINGENT DEFERRED SALES CHARGE. The CDSC on Class
B shares may be waived or reduced for non-retirement accounts if: (a) the
redemption results from the death of all registered owners of an account (in
the case of an UGMA, an UTMA or a trust account, waiver applies upon the death
of all beneficial owners) or a total and permanent disability (as defined in
Section 72 of the Code) of all registered owners occurring after the purchase
of the shares being redeemed or (b) the redemption is made in connection with
limited automatic redemptions as set forth in "Systematic Withdrawal Plans"
(limited in any year to 10% of the value of the account in the Fund at the time
the withdrawal plan is established).    

     The CDSC on Class B shares may be waived or reduced for retirement plan
accounts if: (a) the redemption results from the death or a total and permanent
disability (as defined in


                                       11
                                        
<PAGE>

   
Section 72 of the Code) occurring after the purchase of the shares being
redeemed of a shareholder or participant in an employer-sponsored retirement
plan; (b) the distribution is to a participant in an IRA, 403(b) or
employer-sponsored retirement plan, is part of a series of substantially equal
payments made over the life expectancy of the participant or the joint life
expectancy of the participant and his or her beneficiary or as scheduled
periodic payments to a participant (limited in any year to 10% of the value of
the participant's account at the time the distribution amount is established; a
required minimum distribution due to the participant's attainment of age 701/2
may exceed the 10% limit only if the distribution amount is based on plan
assets held in Pioneer mutual funds); (c) the distribution is from a 401(a) or
401(k) retirement plan and is a return of excess employee deferrals or employee
contributions or a qualifying hardship distribution as defined by the Code or
results from a termination of employment (limited with respect to a termination
to 10% per year of the value of the plan's assets in the Fund as of the later
of the prior December 31 or the date the account was established unless the
plan's assets are being rolled over to or reinvested in the same class of
shares of a Pioneer mutual fund subject to the CDSC of the shares originally
held); (d) the distribution is from an IRA, 403(b) or employer-sponsored
retirement plan and is to be rolled over to or reinvested in the same class of
shares in a Pioneer mutual fund and which will be subject to the applicable
CDSC upon redemption; (e) the distribution is in the form of a loan to a
participant in a plan which permits loans (each repayment of the loan will
constitute a new sale which will be subject to the applicable CDSC upon
redemption); or (f) the distribution is from a qualified defined contribution
plan and represents a participant's directed transfer (provided that this
privilege has been preauthorized through a prior agreement with PFD regarding
participant directed transfers).    

     The CDSC on Class C shares and on any Class A shares subject to a CDSC may
be waived or reduced as follows: (a) for automatic redemptions as described in
"Systematic Withdrawal Plans" (limited to 10% of the value of the account); (b)
if the redemption results from the death or a total and permanent disability
(as defined in Section 72 of the Code) occurring after the purchase of the
shares being redeemed of a shareholder or participant in an employer-sponsored
retirement plan; (c) if the distribution is part of a series of substantially
equal payments made over the life expectancy of the participant or the joint
life expectancy of the participant and his or her beneficiary; or (d) if the
distribution is to a participant in an employer-sponsored retirement plan and
is (i) a return of excess employee deferrals or contributions, (ii) a
qualifying hardship distribution as defined by the Code, (iii) from a
termination of employment, (iv) in the form of a loan to a participant in a
plan which permits loans, or (v) from a qualified defined contribution plan and
represents a participant's directed transfer (provided that this privilege has
been pre-authorized through a prior agreement with PFD regarding participant
directed transfers).

     The CDSC on any shares subject to a CDSC may be waived or reduced for
either non-retirement or retirement plan accounts if the redemption is made
pursuant to the Fund's right to liquidate or involuntarily redeem shares in a
shareholder's account. The CDSC on any shares subject to a CDSC will not be
applicable if the selling broker-dealer elects, with PFD's approval, to waive
receipt of the commission normally paid at the time of the sale.
   
     BROKER-DEALERS. An order for any Class of Fund shares received by a
broker-dealer prior to the close of regular trading on the Exchange is
confirmed at the price appropriate for that Class as determined at the close of
regular trading on the Exchange on the day the order is received, provided the
order is received by PFD prior to PFD's close of business (usually, 5:30 p.m.
Eastern time). It is the responsibility of broker-dealers to transmit orders so
that they will be received by PFD prior to its close of business. PFD or its
affiliates may provide additional compensation to certain dealers or such
dealers' affiliates based on certain objective criteria established from time
to time by PFD. All such payments are made out of PFD's or the affiliate's own
assets. These payments will not change the price an investor will pay for
shares or the amount that the Fund will receive from such sale.    

     GENERAL. The Fund reserves the right in its sole discretion to withdraw
all or any part of the offering of shares when, in the judgment of the Fund's
management, such withdrawal is in the best interest of the Fund. An order to
purchase shares is not binding on, and may be rejected by, PFD until it has
been confirmed in writing by PFD and payment has been received.

VIII. HOW TO SELL FUND SHARES
     YOU CAN ARRANGE TO SELL (REDEEM) FUND SHARES ON ANY DAY THE EXCHANGE IS
OPEN BY SELLING EITHER SOME OR ALL OF YOUR SHARES TO THE FUND.
     You may sell your shares either through your broker-dealer or directly to
the Fund. Please note the following:

     [bullet]  If you are selling shares from a retirement account, other than
               an IRA, you must make your request in writing (except for
               exchanges to other Pioneer mutual funds which can be requested by
               phone or in writing). Call 1-800-622-0176 for more information.

     [bullet]  If you are selling shares from a non-retirement account or IRA,
               you may use any of the methods described below.

   
     Your shares will be sold at the share price next calculated after your
order is received in good order less any applicable CDSC. Sale proceeds
generally will be sent to you by check, bank wire, or electronic funds transfer
normally within seven days after your order is received in good order. The Fund
reserves the right to withhold payment of the sale proceeds until checks
received by the Fund in payment for the shares being sold have cleared, which
may take up to 15 calendar days from the purchase date.

     IN WRITING. You may sell your shares by delivering a written request,
signed by all registered owners, in good order to PSC; however, you must use a
written request, including a signature guarantee, to sell your shares if any of
the following applies:

     [bullet]  you wish to sell over $100,000 worth of shares,    

     [bullet]  your account registration or address has changed within the last
               30 days,

                                       12
                                        
<PAGE>

     [bullet]  the check is not being mailed to the address on your account
               (address of record),

     [bullet]  the check is not being made out to the account owners, or

     [bullet]  the sale proceeds are being transferred to a Pioneer mutual fund
               account with a different registration.

   
     Your request should include your name, the Fund's name, your Fund account
number, the Class of shares to be redeemed, the dollar amount or number of
shares to be redeemed, and any other applicable requirements as described
below. Unless instructed otherwise, PSC will send the proceeds of the sale to
the address of record. Fiduciaries and corporations are required to submit
additional documents. For more information, contact PSC at 1-800-225-6292.

     Written requests will not be processed until they are received in good
order by PSC. Good order means that there are no outstanding claims or requests
to hold redemptions on the account, any certificates are endorsed by the record
owner(s) exactly as the shares are registered and the signature(s) are
guaranteed by an eligible guarantor. You should be able to obtain a signature
guarantee from a bank, broker, dealer, credit union (if authorized under state
law), securities exchange or association, clearing agency or savings
association. A notary public cannot provide a signature guarantee. Signature
guarantees are not accepted by facsimile ("fax"). For additional information
about the necessary documentation for redemption by mail, please contact PSC at
1-800-225-6292.    

   
     BY TELEPHONE OR BY FAX. Your account is automatically authorized to have
the telephone redemption privilege unless you indicate otherwise on your
Account Application or by writing to PSC. Proper account identification will be
required for each telephone redemption. The telephone redemption option is not
available to retirement plan accounts, except IRAs. You may redeem up to
$100,000 per account per day of your shares by telephone or fax and receive the
proceeds by check or by bank wire or electronic funds transfer. To receive the
proceeds by check: the check must be made payable exactly as the account is
registered and the check must be sent to the address of record which must not
have changed in the last 30 days. To receive the proceeds by bank wire or by
electronic funds transfer: the proceeds must be sent to your bank wire address
of record which must have been properly predesignated either on your Account
Application or on an Account Options Form and which must not have changed in
the last 30 days. To redeem by fax, send your redemption request to
1-800-225-4240. You may always elect to deliver redemption instructions to PSC
by mail. See "Telephone Transactions" below. Telephone and fax redemptions will
be priced as described above. YOU ARE STRONGLY URGED TO CONSULT WITH YOUR
FINANCIAL REPRESENTATIVE PRIOR TO REQUESTING A TELEPHONE REDEMPTION.    

     SELLING SHARES THROUGH YOUR BROKER-DEALER. The Fund has authorized PFD to
act as its agent in the repurchase of shares of the Fund from qualified
broker-dealers and reserves the right to terminate this procedure at any time.
Your broker-dealer must receive your request before the close of business on
the Exchange and transmit it to PFD before PFD's close of business to receive
that day's redemption price. Your broker-dealer is responsible for providing
all necessary documentation to PFD and may charge you for its services.

     SMALL ACCOUNTS. As a new shareholder, you have a minimum of 24 months
(including the six months following the mailing of the notice described below)
to increase the value of your account to the minimum account value of $500. If
you hold shares of the Fund in an account with a net asset value of less than
the minimum required amount due to redemptions or exchanges or failure to meet
the initial minimum account requirement set forth above, the Fund may redeem
the shares held in this account at net asset value if you have not increased
the net asset value of the account to at least the minimum required amount
within six months of notice by the Fund to you of the Fund's intention to
redeem the shares.
   
     CDSC ON CLASS A SHARES. Purchases of Class A shares of $1,000,000 or more,
or by participants in a Group Plan which were not subject to an initial sales
charge, may be subject to a CDSC upon redemption. A CDSC is payable to PFD on
these investments in the event of a share redemption within 12 months following
the share purchase, at the rate of 1% of the lesser of the value of the shares
redeemed (exclusive of reinvested dividend and capital gain distributions) or
the total cost of such shares. Shares subject to the CDSC which are exchanged
into another Pioneer mutual fund will continue to be subject to the CDSC of the
shares originally held until the original 12-month period expires. However, no
CDSC is payable upon redemption with respect to Class A shares purchased by
401(a) or 401(k) retirement plans with 1,000 or more eligible participants or
with at least $10 million in plan assets.    

     GENERAL. Redemptions may be suspended or payment postponed during any
period in which any of the following conditions exist: the Exchange is closed
or trading on the Exchange is restricted; an emergency exists as a result of
which disposal by the Fund of securities owned by it is not reasonably
practicable or it is not reasonably practicable for the Fund to fairly
determine the value of the net assets of its portfolio; or the SEC, by order,
so permits.

     Redemptions and repurchases are taxable transactions to shareholders. The
net asset value per share received upon redemption or repurchase may be more or
less than the cost of shares to an investor, depending on the market value of
the portfolio at the time of redemption or repurchase.

IX. HOW TO EXCHANGE FUND SHARES
     WRITTEN EXCHANGES. You may exchange your shares by sending a letter of
instruction to PSC. Your letter should include your name, the name of the
Pioneer mutual fund out of which you wish to exchange and the name of the
Pioneer mutual fund into which you wish to exchange, your fund account
number(s), the Class of shares to be exchanged and the dollar amount or number
of shares to be exchanged. Written exchange requests must be signed by all
record owner(s) exactly as the shares are registered.

     TELEPHONE EXCHANGES. Your account is automatically authorized to have the
telephone exchange privilege unless you indicate otherwise on your Account
Application or by writ-


                                       13
                                        
<PAGE>

   
ing to PSC. Proper account identification will be required for each telephone
exchange. Telephone exchanges may not exceed $500,000 per account per day. Each
telephone exchange request, whether by voice or by FactFoneSM, will be
recorded. YOU ARE STRONGLY URGED TO CONSULT WITH YOUR FINANCIAL REPRESENTATIVE
PRIOR TO REQUESTING A TELEPHONE EXCHANGE. See "Telephone Transactions" below.
    

     AUTOMATIC EXCHANGES. You may automatically exchange shares from one
Pioneer mutual fund account for shares of the same Class in another Pioneer
mutual fund account on a monthly or quarterly basis. The accounts must have
identical registrations and the originating account must have a minimum balance
of $5,000. The exchange will be effective on the day of the month designated on
your Account Application or Account Options Form.

     GENERAL. Exchanges must be at least $1,000. You may exchange your
investment from one Class of Fund shares at net asset value, without a sales
charge, for shares of the same Class of any other Pioneer mutual fund. Not all
Pioneer mutual funds offer more than one Class of shares. A new Pioneer mutual
fund account opened through an exchange must have a registration identical to
that on the original account.

     Shares which would normally be subject to a CDSC upon redemption will not
be charged the applicable CDSC at the time of an exchange. Shares acquired in
an exchange will be subject to the CDSC of the shares originally held. For
purposes of determining the amount of any applicable CDSC, the length of time
you have owned shares acquired by exchange will be measured from the date you
acquired the original shares and will not be affected by any subsequent
exchange.
   
     Exchange requests received by PSC before 4:00 p.m. Eastern time will be
effective on that day if the requirements above have been met, otherwise, they
will be effective on the next business day. PSC will process exchanges only
after receiving an exchange request in good order. There are currently no fees
or sales charges imposed at the time of an exchange. An exchange of shares may
be made only in states where legally permitted. For federal and (generally)
state income tax purposes, an exchange is considered to be a sale of the shares
of the Fund exchanged and a purchase of shares in another Pioneer mutual fund.
Therefore, an exchange could result in a gain or loss on the shares sold,
depending on the tax basis of these shares and the timing of the transaction,
and special tax rules may apply.    

     You should consider the differences in objectives and policies of the
Pioneer mutual funds, as described in each fund's current prospectus, before
making any exchange. For the protection of the Fund's performance and
shareholders, the Fund and PFD reserve the right to refuse any exchange request
or restrict, at any time without notice, the number and/or frequency of
exchanges to prevent abuses of the exchange privilege. Such abuses may arise
from frequent trading in response to short-term market fluctuations, a pattern
of trading by an individual or group that appears to be an attempt to "time the
market," or any other exchange request which, in the view of management, will
have a detrimental effect on the Fund's portfolio management strategy or its
operations. In addition, the Fund and PFD reserve the right to charge a fee for
exchanges or to modify, limit, suspend or discontinue the exchange privilege
with notice to shareholders as required by law.

X. DISTRIBUTION PLANS
   
     The Fund has adopted a Plan of Distribution for each Class of shares (the
"Class A Plan," the "Class B Plan" and the "Class C Plan") in accordance with
Rule 12b-1 under the 1940 Act pursuant to which certain distribution and
service fees are paid to PFD.

     Pursuant to the Class A Plan, the Fund reimburses PFD for its actual
expenditures to finance any activity primarily intended to result in the sale
of the Class A shares of the Fund or to provide services to holders of Class A
shares, provided the categories of expenses for which reimbursement is made are
approved by the Fund's Board of Trustees. As of the date of this Prospectus,
the Board of Trustees has approved the following categories of expenses for the
Class A shares of the Fund: (i) a service fee to be paid to qualified
broker-dealers in an amount not to exceed 0.25% per annum of the Fund's daily
net assets attributable to Class A shares; (ii) reimbursement to PFD for its
expenditures for broker-dealer commissions and employee compensation on certain
sales of the Fund's Class A shares with no initial sales charge (see "How to
Buy Fund Shares"); and (iii) reimbursement to PFD for expenses incurred in
providing services to Class A shareholders and supporting broker-dealers and
other organizations (such as banks and trust companies) in their efforts to
provide such services. Banks are currently prohibited under the Glass-Steagall
Act from providing certain underwriting or distribution services. If a bank was
prohibited from acting in any capacity or providing any of the described
services, management would consider what action, if any, would be appropriate.

     Expenditures of the Fund pursuant to the Class A Plan are accrued daily
and may not exceed 0.25% of the Fund's average daily net assets attributable to
Class A shares. Distribution expenses of PFD are expected to substantially
exceed the distribution fees paid by the Fund in a given year. The Class A Plan
does not provide for the carryover of reimbursable expenses beyond 12 months
from the time the Fund is first invoiced for an expense. The limited carryover
provision in the Class A Plan may result in an expense invoiced to the Fund in
one fiscal year being paid in the subsequent fiscal year and thus being treated
for purposes of calculating the maximum expenditures of the Fund as having been
incurred in the subsequent fiscal year. In the event of termination or
non-continuance of the Class A Plan, the Fund has 12 months to reimburse any
expense which it incurs prior to such termination or non-continuance, provided
that payments by the Fund during such 12-month period shall not exceed 0.25% of
the Fund's average net daily assets attributable to Class A shares during such
period. The Class A Plan may not be amended to increase materially the annual
percentage limitation of average net assets which may be spent for the services
described therein without approval of the Class A shareholders of the Fund.    

     Both the Class B Plan and the Class C Plan provide that the Fund will
compensate PFD by paying a distribution fee at the annual rate of 0.75% of the
Fund's average daily net assets

                                       14
<PAGE>

attributable to the applicable Class of shares and will pay PFD a service fee
at the annual rate of 0.25% of the Fund's average daily net assets attributable
to that Class of shares. The distribution fee is intended to compensate PFD for
its Class B and Class C distribution services to the Fund. The service fee is
intended to be additional compensation for personal services and/or account
maintenance services with respect to Class B or Class C shares. PFD also
receives the proceeds of any CDSC imposed on the redemption of Class B or Class
C shares.
   
     Commissions of 4% of the amount invested in Class B shares, equal to 3.75%
of the amount invested and a first year's service fee equal to 0.25% of the
amount invested, are paid to broker-dealers who have sales agreements with PFD.
PFD may advance to dealers the first-year service fee at a rate up to 0.25% of
the purchase price of such shares and, as compensation therefor, PFD may retain
the service fee paid by the Fund with respect to such shares for the first year
after purchase. Commencing in the 13th month following the purchase of Class B
shares, dealers will become eligible for additional annual service fees of up
to 0.25% of the net asset value of such shares.

     Commissions of up to 1% of the amount invested in Class C shares,
consisting of 0.75% of the amount invested and a first year's service fee of
0.25% of the amount invested, are paid to broker-dealers who have sales
agreements with PFD. PFD may advance to dealers the first-year service fee at a
rate up to 0.25% of the purchase price of such shares and, as compensation
therefor, PFD may retain the service fee paid by the Fund with respect to such
shares for the first year after purchase. Commencing in the 13th month
following the purchase of Class C shares, dealers will become eligible for
additional annual distribution fees and services fees of up to 0.75% and 0.25%,
respectively, of the average net asset value of such shares.    

     When a broker-dealer sells Class B or Class C shares and elects, with
PFD's approval, to waive its right to receive the commission normally paid at
the time of the sale, PFD may cause all or a portion of the distribution fees
described above to be paid to the broker-dealer.
   
     Dealers may from time to time be required to meet certain criteria in
order to receive service fees. PFD or its affiliates are entitled to retain all
service fees payable under the Class B Plan or the Class C Plan for which there
is no dealer of record or for which qualification standards have not been met
as partial consideration for personal services and/or account maintenance
services performed by PFD or its affiliates for shareholder accounts.    

XI. DIVIDENDS, DISTRIBUTIONS AND TAXATION
     The Fund has elected to be treated, has qualified, and intends to qualify
each year as a "regulated investment company" under Subchapter M of the Code,
so that it will not pay federal income tax on income and capital gains
distributed to shareholders as required under the Code.
   
     Under the Code, the Fund will be subject to a nondeductible 4% federal
excise tax on a portion of its undistributed ordinary income and capital gains
if it fails to meet certain distribution requirements with respect to each
calendar year. The Fund intends to make distributions in a timely manner and
accordingly does not expect to be subject to the excise tax.

     The Fund's policy is to pay to shareholders dividends from net investment
income, if any, quarterly during the months of March, June, September and
December and to make distributions from net long-term capital gains, if any, in
December. Distributions from net short-term capital gains, if any, may be paid
with such dividends; dividends from income and/or capital gains may also be
paid at such other times as may be necessary for the Fund to avoid federal
income or excise tax. Generally, dividends from the Fund's net investment
income, market discount income, net short-term capital gains and certain net
foreign exchange gains are taxable under the Code as ordinary income, and
dividends from the Fund's net long-term capital gains are taxable as long-term
capital gains. The Fund's distributions of long-term capital gains to
individuals or other noncorporate taxpayers are subject to different maximum
tax rates (which will be indicated in the annual tax information the Fund
provides to shareholders), depending generally upon the sources of, and the
Fund's holding periods for the assets that produce, the gains.

     UNLESS SHAREHOLDERS SPECIFY OTHERWISE, ALL DISTRIBUTIONS WILL BE
AUTOMATICALLY REINVESTED IN ADDITIONAL FULL AND FRACTIONAL SHARES OF THE FUND.
FOR FEDERAL INCOME TAX PURPOSES, ALL DIVIDENDS ARE TAXABLE AS DESCRIBED ABOVE
WHETHER A SHAREHOLDER TAKES THEM IN CASH OR REINVESTS THEM IN ADDITIONAL SHARES
OF THE FUND. Information as to the federal tax status of distributions will be
provided to shareholders annually. For further information on the distribution
options available to shareholders, see "Distribution Options" and "Directed
Dividends" below.

     Distributions by the Fund of the dividend income it receives from U.S.
corporations may qualify for the dividends-received deduction for corporate
shareholders, subject to holding-period requirements and debt-financing
restrictions under the Code.

     The Fund may be subject to foreign withholding taxes or other foreign
taxes on income (possibly including, in some cases, capital gains) on certain
of its foreign investments, which will reduce the yield on or return from those
investments. If, as anticipated, the Fund does not qualify to pass such taxes
through to its shareholders, they will neither treat such taxes as additional
income nor be entitled to any associated foreign tax credits or deductions.

     Dividends and other distributions and the proceeds of redemptions,
exchanges or repurchases of Fund shares paid to individuals and other
non-exempt payees will be subject to 31% backup withholding of federal income
tax if the Fund is not provided with the shareholder's correct taxpayer
identification number and certification that the number is correct and that the
shareholder is not subject to backup withholding or if the Fund receives notice
from the IRS or a broker that such withholding applies. Please refer to the
Account Application for additional information.

     The description above relates only to U.S. federal income tax consequences
for shareholders who are U.S. persons, i.e., U.S. citizens or residents or U.S.
corporations, partner-    

                                       15
<PAGE>

   
ships, trusts or estates, and who are subject to U.S. federal income tax.
Non-U.S. shareholders and tax-exempt shareholders are subject to tax treatment
that is not described above. Shareholders should consult their own tax advisors
regarding state, local and other applicable tax laws, including the effect of
recent federal tax legislation, in their particular circumstances.    

XII. SHAREHOLDER SERVICES
   
     PSC is the shareholder services and transfer agent for shares of the Fund.
PSC, a Massachusetts corporation, is a wholly owned subsidiary of PGI. PSC's
offices are located at 60 State Street, Boston, Massachusetts 02109, and
inquiries to PSC should be mailed to Shareholder Services, Pioneering Services
Corporation, P.O. Box 9014, Boston, Massachusetts 02205-9014. Brown Brothers
Harriman & Co. ("the Custodian") serves as custodian of the Fund's portfolio
securities and other assets. The principal business address of the mutual fund
division of the Custodian is 40 Water Street, Boston, Massachusetts 02109.    

ACCOUNT AND CONFIRMATION STATEMENTS
     PSC maintains an account for each shareholder and all transactions of the
shareholder are recorded in this account. Confirmation statements showing the
details of transactions are sent to shareholders as transactions occur, except
Automatic Investment Plan transactions which are confirmed quarterly. The
Pioneer Combined Account Statement, mailed quarterly, is available to all
shareholders who have more than one Pioneer mutual fund account.
   
     Shareholders whose shares are held in the name of an investment
broker-dealer or other party will not normally have an account with the Fund and
might not be able to utilize some of the services available to shareholders of
record. Examples of services which might not be available are purchases,
exchanges or redemptions of shares by mail or telephone, automatic reinvestment
of dividends and capital gains distributions, withdrawal plans, LOIs, rights of
accumulation and newsletters.    

ADDITIONAL INVESTMENTS
     You may add to your account by sending a check ($50 minimum for Class A
shares and $500 for Class B and C shares) to PSC (account number and Class of
shares should be clearly indicated). The bottom portion of a confirmation
statement may be used as a remittance slip to make additional investments.
Additions to your account, whether by check or through a Pioneer Investomatic
Plan, are invested in full and fractional shares of the Fund at the applicable
offering price in effect as of the close of regular trading on the Exchange on
the day of receipt.

AUTOMATIC INVESTMENT PLANS
   
     You may arrange for regular automatic investments of $50 or more through
government/military allotments, payroll deduction or through a Pioneer
Investomatic Plan. A Pioneer Investomatic Plan provides for a monthly or
quarterly investment by means of a preauthorized electronic funds transfer from
your bank account. Pioneer Investomatic Plan investments are voluntary, and you
may discontinue your plan or change your plan elections for the dollar amount,
frequency or investment date by calling PSC at 1-800-225-6292, or by sending a
written request to Shareholder Services, Pioneering Services Corporation, P.O.
Box 9014, Boston, Massachusetts 02205-9014. A change to your bank information
must be made in writing on an Account Options Form. You should allow up to five
business days for PSC to make changes to an established plan. PSC acts as agent
for the purchaser, the broker-dealer and PFD in maintaining these plans.    

FINANCIAL REPORTS AND TAX INFORMATION
   
     As a shareholder, you will receive financial reports at least semiannually.
In January of each year, the Fund will mail you information about the tax status
of dividends and distributions.    

DISTRIBUTION OPTIONS
   
     Dividends and capital gains distributions, if any, will automatically be
invested in additional shares of the Fund, at the applicable net asset value
per share, unless you indicate another option on the Account Application. Two
other options available are (a) dividends in cash and capital gains
distributions in additional shares; and (b) all dividends and capital gains
distributions in cash. These two options are not available, however, for
retirement plans or for an account with a net asset value of less than $500.
Changes in the distribution options may be made by written request to PSC.

     If you elect to receive either dividends or dividends and capital gains in
cash and a distribution check issued to you is returned by the U.S. Postal
Service as not deliverable or a distribution check remains uncashed for six
months or more, the amount of the check may be reinvested in your account. Such
additional shares will be purchased at the then current net asset value.
Furthermore, the distribution option on the account will automatically be
changed to the reinvestment option until such time as you request a different
option by writing to PSC.    

DIRECTED DIVIDENDS
   
     You may elect (in writing) to have the dividends paid by one Pioneer
mutual fund account invested in a second Pioneer mutual fund account. The value
of this second account must be at least $1,000 ($500 for the Fund or Pioneer
II). Invested dividends may be in any amount, and there are no fees or charges
for this service. Retirement plan shareholders may only direct dividends to
accounts with identical registrations.    

DIRECT DEPOSIT
     If you have elected to take distributions, whether dividends or dividends
and capital gains, in cash, or have established a Systematic Withdrawal Plan,
you may choose to have those cash payments deposited directly into your
savings, checking or NOW bank account. You may establish this service by
completing the appropriate section on the Account Application when opening a
new account or the Account Options Form for an existing account.

VOLUNTARY TAX WITHHOLDING
     You may request (in writing) that PSC withhold 28% of the dividends and
capital gains distribution paid from your account (before any reinvestment) and
forward the amount withheld to the IRS as a credit against your federal income
taxes. This option is not available for retirement plan accounts or for
accounts subject to backup withholding.


                                       16
                                        
<PAGE>

   
TELEPHONE TRANSACTIONS
     Your account is automatically authorized to have telephone transaction
privileges unless you indicate otherwise on your Account Application or by
writing to PSC. You may purchase, sell or exchange Fund shares by telephone.
See " How to Buy Fund Shares," "How to Sell Fund Shares" and "How to Exchange
Fund Shares" for more information. For personal assistance, call 1-800-225-6292
between 8:00 a.m. and 9:00 p.m. Eastern time on weekdays. Computer-assisted
transactions may be available to shareholders who have pre-recorded certain
bank information (see "FactFoneSM"). YOU ARE STRONGLY URGED TO CONSULT WITH
YOUR FINANCIAL REPRESENTATIVE PRIOR TO REQUESTING ANY TELEPHONE TRANSACTION.

     To confirm that each transaction instruction received by telephone is
genuine, PSC will record each telephone transaction, require the caller to
provide the personal identification number ("PIN") for the account and send you
a written confirmation of each telephone transaction. Different procedures may
apply to accounts that are registered to non-U.S. citizens or that are held in
the name of an institution or in the name of an investment broker-dealer or
other third party. If reasonable procedures, such as those described above, are
not followed, the Fund may be liable for any loss due to unauthorized or
fraudulent instructions. The Fund may implement other procedures from time to
time. In all other cases, neither the Fund, PSC nor PFD will be responsible for
the authenticity of instructions received by telephone; therefore, you bear the
risk of loss for unauthorized or fraudulent telephone transactions.    

     During times of economic turmoil or market volatility or as a result of
severe weather or a natural disaster, it may be difficult to contact the Fund
by telephone to institute a redemption or exchange. You should communicate with
the Fund in writing if you are unable to reach the Fund by telephone.


FACTFONE(SM)
   
     FactFone(SM) is an automated inquiry and telephone transaction system
available to Pioneer shareholders by dialing 1-800-225-4321. FactFoneSM allows
you to obtain current information on your Pioneer mutual fund accounts and to
inquire about the prices and yields of all publicly available Pioneer mutual
funds. In addition, you may use FactFone(SM) to make computer-assisted telephone
purchases, exchanges and redemptions from your Pioneer mutual fund accounts if
you have activated your PIN. Telephone purchases and redemptions require the
establishment of a bank account of record. YOU ARE STRONGLY URGED TO CONSULT
WITH YOUR FINANCIAL REPRESENTATIVE PRIOR TO REQUESTING ANY TELEPHONE
TRANSACTION. Shareholders whose accounts are registered in the name of a
broker-dealer or other third party may not be able to use FactFone(SM). See "How
to Buy Fund Shares," "How to Exchange Fund Shares," "How to Sell Fund Shares"
and "Telephone Transactions." Call PSC for assistance.    

TELECOMMUNICATIONS DEVICE FOR THE DEAF (TDD)
   
     If you have a hearing disability and access to TDD keyboard equipment, you
can call our TDD number toll-free at 1-800-225-1997, weekdays from 8:30 a.m. to
5:30 p.m. Eastern time, to contact our telephone representatives with questions
about your account.    

RETIREMENT PLANS
   
     You should contact the Retirement Plans Department of PSC at
1-800-622-0176 for information relating to tax-deferred retirement plans for
individuals, businesses and tax-exempt organizations. The Account Application
accompanying this Prospectus should not be used to establish any of these
plans. Separate applications are required.    

SYSTEMATIC WITHDRAWAL PLANS
   
     If your account has a total value of at least $10,000, you may establish a
Systematic Withdrawal Plan ("SWP") providing for fixed payments at regular
intervals. Withdrawals from Class B and Class C shares accounts are limited to
10% of the value of the account at the time the SWP is implemented. See "Waiver
of Contingent Deferred Sales Charges" for more information.

     Periodic payments of $50 or more will be sent to you, or any person
designated by you, monthly or quarterly, and your periodic redemptions of
shares may be taxable to you. Payments can be made either by check or
electronic transfer to a bank account designated by you. If you direct that
withdrawal payments be made to another person after you have opened your
account, a signature guarantee must accompany your instructions. Purchases of
Class A shares of the Fund at a time when you have a SWP in effect may result
in the payment of unnecessary sales charges and may, therefore, be
disadvantageous.    

     You may obtain additional information by calling PSC at 1-800-225-6292 or
by referring to the Statement of Additional Information.

REINSTATEMENT PRIVILEGE (CLASS A SHARES ONLY)
   
     If you redeem all or part of your Class A shares of the Fund, you may
reinvest all or part of the redemption proceeds without a sales charge in Class
A shares of the Fund if you send a written request to PSC not more than 90 days
after your shares were redeemed. Your redemption proceeds will be reinvested at
the next determined net asset value of the Class A shares of the Fund after
receipt of the written request for reinstatement. You may realize a gain or
loss for federal income tax purposes as a result of the redemption, and special
tax rules may apply if a reinstatement occurs. In addition, if a redemption
resulted in a loss and an investment is made in shares of the Fund within 30
days before or after the redemption, you may not be able to recognize the loss
for federal income tax purposes. Subject to the provisions outlined under "How
to Exchange Fund Shares" above, you may also reinvest in Class A shares of any
other Pioneer mutual funds; in this case you must meet the minimum investment
requirement for each fund you enter.

     The 90-day reinstatement period may be extended by PFD for periods of up
to one year for shareholders living in areas that have experienced a natural
disaster, such as a flood, hurricane, tornado or earthquake.    

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

     THE OPTIONS AND SERVICES AVAILABLE TO SHAREHOLDERS, INCLUDING THE TERMS OF
THE EXCHANGE PRIVILEGE AND THE PIONEER INVESTOMATIC PLAN, MAY BE REVISED,
SUSPENDED, OR TERMINATED AT ANY TIME BY PFD OR BY THE FUND. YOU MAY ESTABLISH
THE SERVICES DESCRIBED IN THIS SECTION WHEN YOU OPEN YOUR ACCOUNT.


                                       17
<PAGE>

   
YOU MAY ALSO ESTABLISH OR REVISE MANY OF THEM ON AN EXISTING ACCOUNT BY
COMPLETING AN ACCOUNT OPTIONS FORM, WHICH YOU MAY REQUEST BY CALLING
1-800-225-6292.    

XIII. THE FUND
   
     The Fund is a diversified open-end management investment company (commonly
referred to as a mutual fund) which was originally organized as a Delaware
corporation in 1928 and reorganized as a Massachusetts corporation in 1967, as
a Massachusetts business trust in 1985 and as a Delaware business trust on May
1, 1996. The Fund has authorized an unlimited number of shares of beneficial
interest. As an open-end investment company, the Fund continuously offers its
shares to the public and under normal conditions must redeem its shares upon
the demand of any shareholder at the then current net asset value per share,
less any applicable CDSC. See "How to Sell Fund Shares" above. The Fund is not
required, and does not intend, to hold annual shareholder meetings although
special meetings may be called for the purposes of electing or removing
Trustees, changing fundamental investment restrictions or approving a
management contract.    

     The Fund reserves the right to create and issue additional series of
shares. The Trustees have the authority, without further shareholder approval,
to classify and reclassify the shares of the Fund, or any additional series of
the Fund, into one or more classes. As of the date of this Prospectus, the
Trustees have authorized the issuance of three classes of shares, designated
Class A, Class B and Class C. The shares of each class represent an interest in
the same portfolio of investments of the Fund. Each class has equal rights as
to voting, redemption, dividends and liquidation, except that each class bears
different distribution and transfer agent fees and may bear other expenses
properly attributable to the particular class. Class A, Class B and Class C
shareholders have exclusive voting rights with respect to the Rule 12b-1
distribution plans adopted by holders of those shares in connection with the
distribution of shares.

     In addition to the requirements under Delaware law, the Declaration of
Trust provides that a shareholder of the Fund may bring a derivative action on
behalf of the Fund only if the following conditions are met: (a) shareholders
eligible to bring such derivative action under Delaware law who hold at least
10% of the outstanding shares of the Fund, or 10% of the outstanding shares of
the series or class to which such action relates, shall join in the request for
the Trustees to commence such action; and (b) the Trustees must be afforded a
reasonable amount of time to consider such shareholder request and investigate
the basis of such claim. The Trustees shall be entitled to retain counsel or
other advisers in considering the merits of the request and shall require an
undertaking by the shareholders making such request to reimburse the Fund for
the expense of any such advisers in the event that the Trustees determine not
to bring such action.

   
     When issued and paid for in accordance with the terms of the Prospectus
and Statement of Additional Information, shares of the Fund are fully paid and
non-assessable. Shares will remain on deposit with the Fund's transfer agent
and certificates will not normally be issued. The Fund reserves the right to
charge a fee for the issuance of certificates.    

XIV. INVESTMENT RESULTS
     The average annual total return (for a designated period of time) on an
investment in the Fund may be included in advertisements, and furnished to
existing or prospective shareholders. The average annual total return for each
Class is computed in accordance with the SEC's standardized formula. The
calculation for all Classes assumes the reinvestment of all dividends and
distributions at net asset value and does not reflect the impact of federal or
state income taxes. In addition, for Class A shares the calculation assumes the
deduction of the maximum sales charge of 5.75%; for Class B and Class C shares
the calculation reflects the deduction of any applicable CDSC. The periods
illustrated would normally include one, five and ten years (or since the
commencement of the public offering of the shares of a Class, if shorter)
through the most recent calendar quarter.

     One or more additional measures and assumptions, including but not limited
to historical total returns; distribution returns; results of actual or
hypothetical investments; changes in dividends, distributions or share values;
or any graphic illustration of such data may also be used. These data may cover
any period of the Fund's existence and may or may not include the impact of
sales charges, taxes or other factors.

   
     Other investments or savings vehicles and/or unmanaged market indices,
indicators of economic activity or averages of mutual fund results may be cited
or compared with the investment results of the Fund. The Fund may also include
securities industry or comparative performance information generally and in
advertising or materials marketing the Fund's shares. Such performance
information may include rankings or listings by magazines, newspapers or
independent statistical or ratings services, such as Lipper Analytical
Services, Inc. or Ibbotson Associates.    

     The Fund's investment results will vary from time to time depending on
market conditions, the composition of the Fund's portfolio and operating
expenses of the Fund. All quoted investment results are historical and should
not be considered representative of what an investment in the Fund may earn in
any future period. For further information about the calculation methods and
uses of the Fund's investment results, see the Statement of Additional
Information.


                                       18
<PAGE>

                          THE PIONEER FAMILY OF MUTUAL FUNDS


                          GROWTH FUNDS
                          GLOBAL/INTERNATIONAL
                           
                             Pioneer Emerging Markets Fund
                             Pioneer Europe Fund
                             Pioneer Gold Shares
                             Pioneer India Fund
                             Pioneer International Growth Fund
                             Pioneer World Equity Fund


                          UNITED STATES
                           
                             Pioneer Capital Growth Fund
                             Pioneer Growth Shares
   
                             Pioneer Micro-Cap Fund    
                             Pioneer Mid-Cap Fund
                             Pioneer Small Company Fund

   
                          GROWTH AND INCOME FUNDS    
                           
                             Pioneer Balanced Fund
                             Pioneer Equity-Income Fund
                             Pioneer Fund
                             Pioneer Real Estate Shares
                             Pioneer II

                          INCOME FUNDS
                          TAXABLE
                           
                             Pioneer America Income Trust
                             Pioneer Bond Fund
   
                             Pioneer Short-Term Income Trust

                          TAX-EXEMPT*    
                           
   
                             Pioneer Intermediate Tax-Free Fund
                             Pioneer Tax-Free Income Fund    

                          MONEY MARKET FUND
                           
                             Pioneer Cash Reserves Fund

       
                          *Not suitable for retirement accounts

                                       19
<PAGE>

                                                                       [PIONEER
                                                                         LOGO]

PIONEER FUND
60 STATE STREET
BOSTON, MASSACHUSETTS 02109


OFFICERS
JOHN F. COGAN, JR., CHAIRMAN AND PRESIDENT
DAVID D. TRIPPLE, EXECUTIVE VICE PRESIDENT
JOHN A. CAREY, VICE PRESIDENT
WILLIAM H. KEOUGH, TREASURER
JOSEPH P. BARRI, SECRETARY


INVESTMENT ADVISER
PIONEERING MANAGEMENT CORPORATION


CUSTODIAN
BROWN BROTHERS HARRIMAN & CO.


INDEPENDENT PUBLIC ACCOUNTANTS
ARTHUR ANDERSEN LLP


LEGAL COUNSEL
HALE AND DORR LLP




PRINCIPAL UNDERWRITER
PIONEER FUNDS DISTRIBUTOR, INC.


SHAREHOLDER SERVICES AND TRANSFER AGENT
PIONEERING SERVICES CORPORATION
60 State Street
Boston, Massachusetts 02109
Telephone: 1-800-225-6292


SERVICE INFORMATION
If you would like information on the following, please call:
Existing and new accounts, prospectuses,
 applications, service forms and
 telephone transactions........................................ 1-800-225-6292
FactFone(SM)
   
 Automated fund yields and prices and account
 information....................................................1-800-225-4321
    
Retirement plans............................................... 1-800-622-0176
Toll-free fax.................................................. 1-800-225-4240
   
Telecommunications Device for the Deaf (TDD)................... 1-800-225-1997
Visit our web site:................... .................  www.pioneerfunds.com
    

   
0498-5123    

[Copyright] Pioneer Funds Distributor, Inc.


<PAGE>


                                  PIONEER FUND
                                 60 STATE STREET
                           BOSTON, MASSACHUSETTS 02109

                       STATEMENT OF ADDITIONAL INFORMATION

                       CLASS A, CLASS B AND CLASS C SHARES

   
                                 APRIL 30, 1998


         This Statement of Additional Information is not a Prospectus, but
should be read in conjunction with the Prospectus, dated April 30, 1998, of
Pioneer Fund (the "Fund"). A copy of the Prospectus can be obtained free of
charge by calling Shareholder Services at 1-800-225-6292 or by written request
to the Fund at 60 State Street, Boston, Massachusetts 02109. The most recent
Annual Report to Shareholders is attached to this Statement of Additional
Information and is hereby incorporated in this Statement of Additional
Information by reference.    

                                TABLE OF CONTENTS
                                                                            Page

   
         1.  Investment Policies and Restrictions.............................2
         2.  Management of the Fund.......................................... 7
         3.  Investment Adviser..............................................11
         4.  Shareholder Servicing/Transfer Agent............................13
         5.  Custodian.......................................................14
         6.  Principal Underwriter...........................................14
         7.  Underwriting Agreement and Distribution Plans...................14
         8.  Independent Public Accountants..................................17
         9.  Portfolio Transactions..........................................17
         10. Tax Status......................................................18
         11. Description of Shares...........................................23
         12. Certain Liabilities.............................................23
         13. Determination of Net Asset Value................................24
         14. Systematic Withdrawal Plan......................................24
         15. Letter of Intent................................................25
         16. Investment Results..............................................26
         17. Financial Statements............................................28
         Appendix A - Description of Short-Term Debt and
         Corporate Bond Ratings..............................................29
         Appendix B - -Performance Statistics................................33
         Appendix C - -Other Pioneer Information.............................46
    

          THIS STATEMENT OF ADDITIONAL INFORMATION IS NOT A PROSPECTUS
                AND IS AUTHORIZED FOR DISTRIBUTION TO PROSPECTIVE
            INVESTORS ONLY IF PRECEDED OR ACCOMPANIED BY AN EFFECTIVE
                                   PROSPECTUS.


                                       1


<PAGE>


1. INVESTMENT POLICIES AND RESTRICTIONS

   
         The Prospectus identifies the investment objectives and the principal
investment policies of the Fund. Additional investment policies and a further
description of some of the policies described in the Prospectus appear below.
Capitalized terms not otherwise defined herein have the meaning given to them in
the Prospectus.    

         The following policies and restrictions supplement those discussed in
the Prospectus. Whenever an investment policy or restriction states a maximum
percentage of the Fund's assets that may be invested in any security or presents
a policy regarding quality standards, this standard or other restrictions shall
be determined immediately after and as a result of the Fund's investment.
Accordingly, any later increase or decrease resulting from a change in values,
net assets or other circumstances will not be considered in determining whether
the investment complies with the Fund's investment objectives and policies.

LENDING OF PORTFOLIO SECURITIES

   
         In order to realize additional income, the Fund may lend its portfolio
securities, principally to broker-dealers, under agreements which would require
that the loans be secured continuously by cash equivalents or U.S. Treasury
bills equal at all times to at least the market value of the securities loaned.
The Fund would continue to receive the equivalent of the interest or dividends
paid by the issuer on the securities loaned as well as the benefit of an
increase and the detriment of any decrease in the market value of the securities
loaned and would also receive compensation based on investment of the loan
collateral. The loan collateral would be invested only in U.S. Treasury notes,
certificates of deposit or other high-grade, short-term obligations or
interest-bearing cash equivalents. The Fund would not, however, have the right
to vote any securities having voting rights during the existence of the loan,
but would call the loan in anticipation of an important vote to be taken among
holders of the securities or of the giving or withholding of consent on a
material matter affecting the investment.

         As with other extensions of credit, there are risks of delay in
recovery or even loss of rights in the collateral should the borrower of the
securities fail financially. The Fund will lend portfolio securities only to
firms which have been approved in advance by the Board of Trustees, which will
monitor the creditworthiness of any such firms. If the management of the Fund
decides to make securities loans, it is intended that the value of the
securities loaned by the Fund would not exceed 30% of the value of the Fund's
total assets. In the Fund's last fiscal year, the Fund did not lend portfolio
securities and, while it reserves the right to lend portfolio securities having
a value exceeding 5% of its net assets, the Fund has no present intention of
lending portfolio securities with such a value during the coming year.    

COVERED CALL OPTIONS

   
         The Fund may write (sell) covered call options on certain portfolio
securities, but options may not be written on more than 25% of the aggregate
market value of any single portfolio security (determined each time a call is
sold as of the date of such sale). As a writer of a call option, the Fund
receives a premium less commission and, in exchange, foregoes the opportunity to
profit from increases in the market value of the security covering the call
above the sum of the premium and the exercise price of the option during the
life of the option. The purchaser of such a call has the option of purchasing
the security from the Fund's portfolio at the option price during the life of
the option. Portfolio securities on which options may be written are purchased
solely on the basis of investment considerations consistent with the Fund's
investment objectives. The security covering the call is maintained in a
segregated account of the    


                                       2


<PAGE>


Fund's custodian. The Fund does not consider a security covered by a call
option to be "pledged" as that term is used in the Fund's policy which limits
the pledging or mortgaging of its assets.

         The Fund will purchase a call option only when entering into a "closing
purchase transaction," i.e., a purchase of a call option on the same security
with the same exercise price and expiration date as a "covered" call already
written by the Fund. There is no assurance that the Fund will be able to effect
such closing purchase transactions at a favorable price; if the Fund cannot
enter into such a transaction it may be required to hold a security that it
might otherwise have sold. The Fund's portfolio turnover may increase through
the exercise of options if the market price of the underlying securities
appreciates and the Fund has not entered into a closing purchase transaction.
The commission on the purchase or sale of a call option is higher in relation to
the premium than the commission in relation to the price on purchase or sale of
the underlying security.

   
WARRANTS

         The Fund may invest in warrants, which are securities permitting, but
not obligating, their holder to subscribe for other securities. Warrants do not
carry with them the right to dividends or voting rights with respect to the
securities that they entitle their holders to purchase, and they do not
represent any rights in the assets of the issuer. As a result, an investment in
warrants may be considered more speculative than certain other types of
investments. In addition, the value of a warrant does not necessarily change
with the value of the underlying securities and a warrant expires worthless if
it is not exercised on or prior to its expiration date. Although the Fund does
not have a formal percentage limitation on such investments, it is not expected
that PMC will invest more than 5% of the Fund's net assets in such securities.
    

FOREIGN SECURITIES

   
         The Fund may invest a portion of its assets in foreign securities.
Investing in securities of foreign companies and countries involves certain
considerations and risks that are not typically associated with investment in
U.S. government securities and securities of U.S. companies. Foreign companies
are not generally subject to uniform accounting, auditing and financial
standards and requirements comparable to those applicable to U.S. companies.
There may also be less publicly available information about foreign companies
compared to reports and ratings published about U.S. companies. In addition,
foreign securities markets have substantially less volume than U.S. markets and
securities of some foreign companies are less liquid and more volatile than
securities of comparable U.S. companies. There may also be less government
supervision and regulation of foreign securities exchanges, brokers and listed
companies than exists in the U.S. Dividends or interest, or in some cases
capital gains, from foreign investments may be subject to withholding or other
foreign taxes which will decrease the net return on such investments as compared
with the return on the Fund's U.S. investments. Finally, there may be the
possibility of expropriations, confiscatory taxation, political, economic or
social instability or diplomatic developments which could adversely affect
assets of the Fund held in foreign countries.

         The value of foreign securities may be adversely affected by
fluctuations in the relative rates of exchange between the currencies of
different nations and by exchange control regulations. For example, the value of
a foreign security held by the Fund as measured in U.S. dollars will decrease if
the foreign currency in which the security is denominated declines in value
against the U.S. dollar. In such event, this will cause an overall decline in
the Fund's net asset value and may also reduce net investment income and capital
gains, if any, to be distributed in U.S. dollars to shareholders of the Fund. In
connection with its


                                       3


<PAGE>


investments in foreign securities and in order to protect against
uncertainty in future exchange rates, the Fund may engage in foreign currency
exchange transactions.    

DEBT SECURITIES

   
         No more than 5% of the Fund's net assets may be invested in debt
securities, including convertible securities, rated below "BBB" by Standard &
Poor's Ratings Group ("Standard & Poor's") or the equivalent. If the rating of a
debt security is reduced below investment grade ("BBB" or higher), management
will consider whatever action is appropriate, consistent with the Fund's
investment objectives and policies.    

         Bonds rated below "BBB" or comparable unrated securities are commonly
referred to as "junk bonds" and are considered speculative and may be
questionable as to principal and interest payments. In some cases, such bonds
may be highly speculative, have poor prospects for reaching investment grade
standing and be in default. As a result, investment in such bonds will entail
greater speculative risks than those associated with investment in investment
grade bonds (i.e., bonds rated "BBB" or better by Standard & Poor's or, if
unrated by such rating organization, determined to be of comparable quality by
the Fund's investment adviser).

         The amount of junk bond securities outstanding has proliferated in
conjunction with the increase in merger and acquisition and leveraged buyout
activity. An economic downturn could severely affect the ability of highly
leveraged issuers to service their debt obligations or to repay their
obligations upon maturity. Factors having an adverse impact on the market value
of lower quality securities will have an adverse effect on the Fund's net asset
value to the extent that it invests in such securities. In addition, the Fund
may incur additional expenses to the extent it is required to seek recovery upon
a default in payment of principal or interest on its portfolio holdings.

         The secondary market for junk bond securities, which is concentrated in
relatively few market makers, may not be as liquid as the secondary market for
more highly rated securities, a factor which may have an adverse effect on the
Fund's ability to dispose of a particular security when necessary to meet its
liquidity needs. Under adverse market or economic conditions, the secondary
market for junk bond securities could contract further, independent of any
specific adverse changes in the condition of a particular issuer. As a result,
the Fund could find it more difficult to sell these securities or may be able to
sell the securities only at prices lower than if such securities were widely
traded. Prices realized upon the sale of such lower rated or unrated securities,
under these circumstances, may be less than the prices used in calculating the
Fund's net asset value.

         Certain proposed and recently enacted federal laws including the
required divestiture by federally insured savings and loan associations of their
investments in junk bonds and proposals designed to limit the use, or tax and
other advantages, of junk bond securities could adversely affect the Fund's net
asset value and investment practices. Such proposals could also adversely affect
the secondary market for junk bond securities, the financial condition of
issuers of these securities and the value of outstanding junk bond securities.
The form of such proposed legislation and the possibility of such legislation
being passed are uncertain.

         Since investors generally perceive that there are greater risks
associated with the medium to lower quality debt securities of the type in which
the Fund may invest a portion of its assets, the yields and prices of such
securities may tend to fluctuate more than those for higher rated securities. In
the lower quality segments of the debt securities market, changes in perceptions
of issuers' creditworthiness tend to


                                       4


<PAGE>


occur more frequently and in a more pronounced manner than do changes in
higher quality segments of the debt securities market, resulting in greater
yield and price volatility.

   
         Medium to lower rated and comparable unrated debt securities tend to
offer higher yields than higher rated securities with the same maturities
because the historical financial condition of the issuers of such securities may
not have been as strong as that of other issuers. Since medium to lower rated
securities generally involve greater risks of loss of income and principal than
higher rated securities, investors should consider carefully the relative risks
associated with investment in securities which carry medium to lower ratings and
in comparable unrated securities. The Fund's investment adviser will attempt to
reduce these risks through portfolio diversification and by analysis of each
issuer and its ability to make timely payments of income and principal, as well
as broad economic trends and corporate developments.    

         The prices of all debt securities generally fluctuate in response to
the general level of interest rates. Another factor which causes fluctuations in
the prices of debt securities is the supply and demand for similarly rated
securities. Fluctuations in the prices of portfolio securities subsequent to
their acquisition will not affect any cash income from such securities but will
be reflected in the Fund's net asset value.

INVESTMENT RESTRICTIONS

   
         It is a policy of the Fund not to concentrate its investments in
securities of companies in any particular industry. Following the current
opinion of the SEC, investments are concentrated in a particular industry if
such investments aggregate 25% or more of the Fund's total assets. The Fund's
policy does not apply to investments in U.S. government securities. The 1940 Act
provides that the policy of the Fund with respect to concentration is a
fundamental policy. In addition, the Fund has agreed not to change the foregoing
policy without the affirmative vote of a majority of the Fund's outstanding
shares of beneficial interest.

         FUNDAMENTAL INVESTMENT RESTRICTIONS. The Fund has adopted certain
investment restrictions which may not be changed without the affirmative vote of
the holders of a "majority of the outstanding voting securities" (as defined in
the 1940 Act) of the Fund. The Fund may not:    

         (1) Issue senior securities, except as permitted by the Fund's
borrowing, lending and commodity restrictions, and for purposes of this
restriction, the issuance of shares of beneficial interest in multiple classes
or series, the purchase or sale of options, futures contracts and options on
futures contracts, forward commitments, forward foreign exchange contracts,
repurchase agreements, fully covered reverse repurchase agreements, dollar
rolls, swaps and any other financial transaction entered into pursuant to the
Fund's investment policies as described in the Prospectus and this Statement of
Additional Information and in accordance with applicable SEC pronouncements, as
well as the pledge, mortgage or hypothecation of the Fund's assets within the
meaning of the Fund's fundamental investment restriction regarding pledging, are
not deemed to be senior securities.

         (2) Borrow money, except from banks as a temporary measure to
facilitate the meeting of redemption requests or for extraordinary or emergency
purposes and except pursuant to reverse repurchase agreements or dollar rolls,
in all cases in amounts not exceeding 10% of the Fund's total assets (including
the amount borrowed) taken at market value. The Fund will not use leverage to
attempt to increase income. The Fund will not purchase securities while
outstanding borrowings (including reverse repurchase agreements and dollar
rolls) exceed 10% of the Fund's total assets.


                                       5


<PAGE>


         (3) Guarantee the securities of any other company, or mortgage, pledge,
hypothecate or assign or otherwise encumber as security for indebtedness its
securities or receivables in an amount exceeding the amount of the borrowing
secured thereby.

   
         (4) Purchase securities of a company if the purchase would result in
the Fund's having more than 5% of the value of its total assets invested in
securities of such company.    

         (5) Purchase securities of a company if the purchase would result in
the Fund's owning more than 10% of the outstanding voting securities of such
company.

         (6) Act as an underwriter, except as it may deemed to be an underwriter
in a sale of restricted securities held in its portfolio.

         (7) Make loans, except by purchase of debt obligations in which the
Fund may invest consistent with its investment policies, by entering into
repurchase agreements or through the lending of portfolio securities, in each
case only to the extent permitted by the Prospectus and this Statement of
Additional Information.

   
         (8) Invest in real estate, commodities or commodity contracts, except
that the Fund may invest in financial futures contracts and related options and
in any other financial instruments which may be deemed to be commodities or
commodity contracts in which the Fund is not prohibited from investing by the
Commodity Exchange Act and the rules and regulations thereunder.    

         (9) Purchase securities on margin or effect short sales of securities.

   
         (10) Purchase securities for the purpose of controlling management of
other companies.

         (11) Acquire the securities of any other domestic or foreign investment
company or investment fund (except in connection with a plan of merger or
consolidation with or acquisition of substantially all the assets of such other
investment company); provided, however, that nothing herein contained shall
prevent the Fund from investing in the securities issued by a real estate
investment trust, provided that such trust shall not be permitted to invest in
real estate or interests in real estate other than mortgages or other security
interests.    

         The Fund does not intend to enter into any reverse repurchase agreement
or dollar roll, lend portfolio securities or invest in securities index put and
call warrants, as described in fundamental investment restrictions (1), (2), (7)
and (8) above, during the coming year.

   
     NON-FUNDAMENTAL INVESTMENT RESTRICTIONS. The following restriction has been
designated as non-fundamental and may be changed by a vote of the Fund's Board
of Trustees without approval of shareholders.    

The Fund may not:

   
         (1) purchase (a) securities which at the time of investment are not
readily marketable, (b) securities the disposition of which is restricted under
federal securities laws (excluding restricted securities that have been
determined by the Trustees of the Fund ((or the person designated by them to
make such determinations) to be readily marketable) and (c) repurchase
agreements maturing in more than seven days, if, as a result, more than 15% of
the Fund's net assets would be invested in securities described in (a), (b), and
(c) above.    


                                       6


<PAGE>


   
         In addition, in connection with the offering of its shares in various
foreign countries, the Fund has agreed to abide by certain additional
restrictions which may not be changed without the approval of the regulatory
agencies in such foreign countries (but which may be changed without notice to
or approval of the Fund's shareholders). These restrictions are that the Fund
will not: (1) purchase the securities of any issuer if such purchase would
result in the Fund owning more than 10% of any class of securities of such
issuer; (2) write uncovered calls or puts or any combination thereof, purchase
calls, puts, straddles, spreads or any combination thereof in an amount
exceeding 5% of total assets, or invest in oil, gas or other mineral leases or
exploration or development programs; (3) borrow in excess of 10% of gross assets
taken at cost; and (4) pledge, mortgage, hypothecate or otherwise encumber any
assets of the Fund.    

2. MANAGEMENT OF THE FUND

         The Fund's Board of Trustees provides broad supervision over the
affairs of the Fund. The officers of the Fund are responsible for the Fund's
operations. The Trustees and executive officers of the Fund are listed below,
together with their principal occupations during the past five years. An
asterisk indicates those Trustees who are interested persons of the Fund within
the meaning of the 1940 Act.

JOHN F. COGAN, JR.*, CHAIRMAN OF THE BOARD, PRESIDENT AND TRUSTEE, DOB:
JUNE 1926
   
       President, Chief Executive Officer and a Director of The Pioneer Group,
Inc. ("PGI"); Chairman and a Director of Pioneering Management Corporation
("PMC") and Pioneer Funds Distributor, Inc. ("PFD"); Director of Pioneering
Services Corporation ("PSC"), Pioneer Capital Corporation ("PCC"), Pioneer Real
Estate Advisors, Inc., Pioneer Forest, Inc., Pioneer Explorer, Inc., Pioneer
Management (Ireland) Ltd. ("PMIL") and Closed Joint Stock Company
"Forest-Starma"; President and Director of Pioneer Metals and Technology, Inc.
("PMT"), Pioneer International Corp. ("PIntl"), Pioneer First Russia, Inc.
("First Russia") and Pioneer Omega, Inc. ("Omega"); Chairman of the Board and
Director of Pioneer Goldfields Limited ("PGL") and Teberebie Goldfields Limited;
Chairman of the Supervisory Board of Pioneer Fonds Marketing, GmbH, Pioneer
First Polish Investment Fund Joint Stock Company, S.A. and Pioneer Czech
Investment Company, A.S.; Chairman, President and Trustee of all of the Pioneer
mutual funds; Director of Pioneer Global Equity Fund Plc, Pioneer Global Bond
Fund Plc, Pioneer DM Cashfonds Plc, Pioneer European Equity Fund Plc, Pioneer
Central & Eastern Europe Fund Plc and Pioneer US Real Estate Fund Plc; and
Partner, Hale and Dorr LLP (counsel to PGI and the Fund).

MARY K. BUSH, TRUSTEE, DOB: APRIL 1948
4201 CATHEDRAL AVENUE, NW, WASHINGTON, DC 20016
         President, Bush & Co., an international financial advisory firm;
Director and/or Trustee of Mortgage Guaranty Insurance Corporation, Novecon
Management Company, Hoover Institution, Folger Shakespeare Library, March of
Dimes, Project 2000, Inc. (not-for-profit educational organization), Small
Enterprise Assistance Fund and Wilberforce University; Advisory Board member,
Washington Mutual Investors Fund, a registered investment company; and Trustee
of all of the Pioneer mutual funds, except Pioneer Variable Contracts Trust.    

RICHARD H. EGDAHL, M.D., TRUSTEE, DOB: DECEMBER 1926
   
BOSTON UNIVERSITY HEALTH POLICY INSTITUTE, 53 BAY STATE ROAD, BOSTON, MA 02115
       Alexander Graham Bell Professor of Health Care Entrepreneurship, Boston
University; Professor of Management, Boston University School of Management;
Professor of Public Health, Boston University School of Public Health; Professor
of Surgery, Boston University School of Medicine; University Professor, Boston
University; Director, Boston University Health Policy Institute and Boston
University Program for Health Care Entrepreneurship; Director, CORE (management
of workers' compensation and


                                       7


<PAGE>


disability costs - NASDAQ); Director, WellSpace (provider of complementary
health care); Trustee, Boston Medical Center; Honorary Trustee, Franciscan
Children's Hospital; and Trustee of all of the Pioneer mutual funds.    

MARGARET B.W. GRAHAM, TRUSTEE, DOB: MAY 1947
   
THE KEEP, P.O. BOX 110, LITTLE DEER ISLE, ME 04650
       Founding Director, The Winthrop Group, Inc. (consulting firm); Manager of
Research Operations, Xerox Palo Alto Research Center, from 1991 to 1994;
Professor of Operations Management and Management of Technology and Associate
Dean, Boston University School of Management, from 1989 to 1993; and Trustee of
all of the Pioneer mutual funds, except Pioneer Variable Contracts Trust.    

JOHN W. KENDRICK, TRUSTEE, DOB: JULY 1917
6363 WATERWAY DRIVE, FALLS CHURCH, VA 22044
   
     Professor Emeritus, George Washington University; Director, American
Productivity and Quality Center; Adjunct Scholar, American Enterprise Institute;
Economic Consultant; and Trustee of all of the Pioneer mutual funds, except
Pioneer Variable Contracts Trust.    

MARGUERITE A. PIRET, TRUSTEE, DOB: MAY 1948
ONE BOSTON PLACE, SUITE 2635, BOSTON, MA 02108
   
       President, Newbury, Piret & Company, Inc. (merchant banking firm);
Trustee of Boston Medical Center; Member of the Board of Governors of the
Investment Company Institute; and Trustee of all of the Pioneer mutual funds.
    

DAVID D. TRIPPLE*, TRUSTEE AND EXECUTIVE VICE PRESIDENT, DOB: FEBRUARY 1944
   
       Executive Vice President and a Director of PGI; President, Chief
Investment Officer and a Director of PMC; Director of PFD, PCC, PIntl, First
Russia, Omega, Pioneer SBIC Corporation ("Pioneer SBIC"), PMIL, Pioneer Global
Equity Fund Plc, Pioneer Global Bond Fund Plc, Pioneer DM Cashfonds Plc, Pioneer
European Equity Fund Plc, Pioneer Central & Eastern Europe Fund Plc and Pioneer
US Real Estate Fund Plc; and Executive Vice President and Trustee of all of the
Pioneer mutual funds.    

STEPHEN K. WEST, TRUSTEE, DOB: SEPTEMBER 1928
125 BROAD STREET, NEW YORK, NY 10004
   
       Of Counsel to Sullivan & Cromwell (law firm); Trustee, The Winthrop Focus
Funds (mutual funds); and Trustee of all of the Pioneer mutual funds.    

JOHN WINTHROP, TRUSTEE, DOB: JUNE 1936
ONE NORTH ADGERS WHARF, CHARLESTON, SC 29401
   
     President, John Winthrop & Co., Inc. (private investment firm); Director of
NUI Corp. (energy sales, services and distribution); and Trustee of all of the
Pioneer mutual funds, except Pioneer Variable Contracts Trust.    

WILLIAM H. KEOUGH, TREASURER, DOB: APRIL 1937
   
       Senior Vice President, Chief Financial Officer and Treasurer of PGI;
Treasurer of PFD, PMC, PSC, PCC, PIntl, PMT, PGL, First Russia, Omega and
Pioneer SBIC; and Treasurer of all of the Pioneer mutual funds.    

JOSEPH P. BARRI, SECRETARY, DOB: AUGUST 1946
   
       Corporate Secretary of PGI and most of its subsidiaries; Secretary of all
of the Pioneer mutual funds; and Partner of Hale and Dorr LLP.    


                                       8


<PAGE>


ERIC W. RECKARD, ASSISTANT TREASURER, DOB: JUNE 1956
   
       Manager of Business Planning and Internal Audit of PMC since September
1998; Manager of Fund Accounting of PMC since May 1994; Manager of Auditing,
Compliance and Business Analysis for PGI prior to May 1994; and Assistant
Treasurer of all of the Pioneer mutual funds.    

ROBERT P. NAULT, ASSISTANT SECRETARY, DOB: MARCH 1964
   
       General Counsel and Assistant Secretary of PGI since 1995; Assistant
Secretary of PMC, PIntl, PGL, First Russia, Omega and all of the Pioneer mutual
funds; Assistant Clerk of PFD and PSC; and junior partner of Hale and Dorr LLP
prior to 1995.    

JOHN A. CAREY, VICE PRESIDENT, DOB: MAY 1949
   
       Vice President of PMC, Pioneer Equity-Income Fund, and the Equity-Income
Portfolio of Pioneer Variable Contracts Trust.

       The Fund's Agreement and Declaration of Trust, dated April 26, 1996 (the
"Declaration"), provides that the holders of two-thirds of its outstanding
shares may vote to remove a Trustee of the Fund at any meeting of shareholders.
See "Description of Shares" below. The business address of all officers is 60
State Street, Boston, Massachusetts 02109.

         All of the outstanding capital stock of PFD, PMC and PSC is owned,
directly or indirectly, by PGI, a publicly owned Delaware corporation. PMC, the
Fund's investment adviser, serves as the investment adviser for the Pioneer
mutual funds listed below and manages the investments of certain institutional
accounts.    

         The table below lists all the Pioneer mutual funds currently offered to
the public and the investment adviser and principal underwriter for each fund.

                                              Investment           Principal
FUND NAME                                       ADVISER           UNDERWRITER

   
Pioneer World Equity Fund                         PMC                 PFD
Pioneer International Growth Fund                 PMC                 PFD
Pioneer Europe Fund                               PMC                 PFD
Pioneer Emerging Markets Fund                     PMC                 PFD
Pioneer India Fund                                PMC                 PFD
Pioneer Capital Growth Fund                       PMC                 PFD
Pioneer Mid-Cap Fund                              PMC                 PFD
Pioneer Growth Shares                             PMC                 PFD
Pioneer Micro-Cap Fund                            PMC                 PFD
Pioneer Small Company Fund                        PMC                 PFD
Pioneer Independence Fund                         PMC               Note 1
Pioneer Gold Shares                               PMC                 PFD
Pioneer Equity-Income Fund                        PMC                 PFD
Pioneer Fund                                      PMC                 PFD
Pioneer II                                        PMC                 PFD
Pioneer Real Estate Shares                        PMC                 PFD
Pioneer Balanced Fund                             PMC                 PFD
Pioneer Short-Term Income Trust                   PMC                 PFD


                                       9


<PAGE>


Pioneer America Income Trust                      PMC                 PFD
Pioneer Bond Fund                                 PMC                 PFD
Pioneer Intermediate Tax-Free Fund                PMC                 PFD
Pioneer Tax-Free Income Fund                      PMC                 PFD
Pioneer Cash Reserves Fund                        PMC                 PFD
Pioneer Interest Shares                           PMC               Note 2
Pioneer Variable Contracts Trust                  PMC               Note 3

Note 1 This fund is available to the general public only through Pioneer
Independence Plans, a systematic investment plan sponsored by PFD.

Note 2 This fund is a closed-end fund.

Note     3 This is a series of ten separate portfolios designed to provide
         investment vehicles for the variable annuity and variable life
         insurance contracts of various insurance companies or for certain
         qualified pension plans.

         To the knowledge of the Fund, no officer or Trustee of the Fund owned
5% or more of the issued and outstanding shares of PGI as of the date of this
Statement of Additional Information, except Mr. Cogan who then owned
approximately 14% of such shares. As of the date of this Statement of Additional
Information, the Trustees and officers of the Fund owned beneficially in the
aggregate less than 1% of the outstanding shares of the Fund. As of March 31,
1998, no shareholder owned more than 5% of the outstanding Class A Shares of the
Fund; Merrill Lynch Pierce Fenner & Smith, Inc. for the Sole Benefit of its
Customers, Mutual Fund Administration, 4800 Deer Lake Drive East, Third Floor,
Jacksonville, Florida 32246-6484 owned approximately 134,753 (5.35%) of the
Class B shares of the Fund and 83,411 (20.95%) of the Class C shares of the
Fund; and Dain Rauscher Inc. for the Benefit of John M. O'Quinn, David Griffis
and Kendall Montgomery Trustees, Drexel Steward Revocable Trust, 909 Fannin,
Suite 3000, Houston, TX 7701--1011 owned approximately 24,283 (6.25%) of the
outstanding Class C shares of the Fund.    

COMPENSATION OF OFFICERS AND TRUSTEES

   
         The Fund pays no salaries or compensation to any of its officers. The
Fund will pay an annual trustee's fee to each Trustee who is not affiliated with
PMC, PGI, PFD or PSC consisting of two components: (a) a base fee of $500 and
(b) a variable fee, calculated on the basis of the average net assets of the
Fund. In addition, the Fund will pay a per meeting fee of $100 to each Trustee
who is not affiliated with PMC, PGI, PFD or PSC and pays an annual trustee's fee
of $500 plus expenses to each Trustee affiliated with PMC, PGI, PFD or PSC. The
Fund will also will pay an annual committee participation fee to Trustees who
serve as members of committees established to act on behalf of one or more of
the Pioneer mutual funds. Committee fees will be allocated to the Fund on the
basis of the Fund's average net assets. Each Trustee who is a member of the
Audit Committee for the Pioneer mutual funds will receive an annual fee equal to
10% of the aggregate annual trustee's fee, except the Committee Chair who will
receive an annual trustee's fee equal to 20% of the aggregate annual trustee's
fee. Members of the Pricing Committee for the Pioneer mutual funds, as well as
any other committee which renders material functional services to the Boards of
Trustees for the Pioneer mutual funds, will receive an annual fee equal to 5% of
the annual trustee's fee, except the Committee Chair who will receive an annual
trustee's fee equal to 10% of the annual trustee's fee. Each Trustee who is not
affiliated with PMC, PGI, PFD or PSC also will receive $375 per meeting for
attendance at meetings of the Non-Interested Trustees


                                       10


<PAGE>


     Committee, except for the Committee Chair who will receive an additional
$375 per meeting. Any such fees paid to interested Trustees are reimbursed to
the Fund under its management contract.

         The following table sets forth certain information with respect to the
compensation of each Trustee of the Fund for the year ended December 31, 1997:
    

<TABLE>
<CAPTION>

   
                                               PENSION OR RETIREMENT    TOTAL COMPENSATION FROM
                                               BENEFITS ACCRUED AS      THE FUND AND OTHER
                          AGGREGATE            PART OF FUND EXPENSES    PIONEER MUTUAL FUNDS
                          COMPENSATION FROM
NAME OF TRUSTEE           THE FUND
<S>                     <C>                  <C>                      <C>

John F. Cogan, Jr.          $   500                     $0                 $ 12,000
Mary K. Bush                  2,967                      0                   30,000
Richard H. Egdahl, M.D.       5,945                      0                   62,000
Margaret B.W. Graham          5,945                      0                   60,000
John W. Kendrick              5,514                      0                   55,800
Marguerite A. Piret           8,718                      0                   80,000
David D. Tripple                500                      0                   12,000
Stephen K. West               6,307                      0                   63,800
John Winthrop                 6,999                      0                   69,000
                            -------                      -                 --------
Totals                      $43,395                     $0                 $444,600
    
</TABLE>

3. INVESTMENT ADVISER

   
         The Fund has contracted with PMC, 60 State Street, Boston,
Massachusetts 02109, to act as its investment adviser. PMC assists in the
management of the Fund and is authorized in its discretion to buy and sell
securities for the account of the Fund, subject to the right of the Fund's
Trustees to disapprove any such purchase or sale. The term of the management
contract is one year and is renewable annually by vote of a majority of the
Board of Trustees of the Fund (including a majority of the Trustees who are not
parties to the contract or interested persons of any such parties) cast in
person at a meeting called for the purpose of voting on such renewal. The
contract terminates if assigned and may be terminated without penalty by either
party by vote of its Board of Directors or Trustees or vote of a majority of the
Fund's outstanding securities and the giving of 60 days' written notice.
Pursuant to the management contract, PMC will not be liable for any error of
judgment or mistake of law or for any loss sustained by reason of the adoption
of any investment policy or the purchase, sale or retention of any securities on
the recommendation of PMC. PMC, however, is not protected against liability by
reason of willful misfeasance, bad faith or gross negligence in the performance
of its duties or by reason of its reckless disregard of its obligations and
duties under the management contract.    

         As compensation for its management services and expenses incurred, and
certain expenses which PMC incurs on behalf of the Fund, the Fund pays PMC a
basic fee of 0.60% of the Fund's average daily net assets (the "Basic Fee"). An
appropriate percentage (based upon the number of days in the current month) of
this annual Basic Fee is applied to the Fund's average net assets for the
current month, giving a dollar amount which is the monthly fee.


                                       11


<PAGE>


PERFORMANCE FEE ADJUSTMENT

   
         The Basic Fee is subject to an upward or downward adjustment depending
on whether and to what extent the investment performance of the Class A shares
of the Fund for the performance period exceeds, or is exceeded by, the record of
the index determined by the Fund to be appropriate over the same period. The
Trustees have designated the Lipper Growth and Income Funds Index (the "Index")
for this purpose. The Index represents the arithmetic mean performance (i.e.,
equally weighted) of the 30 largest funds with a growth and income objective.
    

         The performance period consists of the current month and the prior 35
months ("performance period"). Each percentage point of difference (up to a
maximum of +/-10) is multiplied by a performance adjustment rate of 0.01%. The
maximum annualized adjustment rate is +/-0.10%. This performance comparison is
made at the end of each month. An appropriate percentage of this rate (based
upon the number of days in the current month) is then applied to the average net
assets for the entire performance period, giving a dollar amount that is added
to (or subtracted from) the Basic Fee.

   
         The Fund's performance is calculated based on the net asset value of
the Fund's Class A shares. For purposes of calculating the performance
adjustment, any dividends or capital gains distributions paid by the Fund are
treated as if reinvested at the net asset value as of the record date for
payment. The record for the Index is based on change in value and is adjusted
for any cash distributions from the mutual funds comprising the Index.    

APPLICATION OF PERFORMANCE ADJUSTMENT

         The application of the performance adjustment is illustrated by the
following hypothetical example, assuming that the net asset value of the Class A
shares of the Fund and the level of the Index were $10 and 100, respectively, on
the first day of the performance period.

                  Investment Performance*           Cumulative Change
              First Day       End of Period     Absolute        Percentage
                                                                Points

Fund            $ 10             $ 13             +$ 3           + 30%
Index            100              123             + 23           + 23%

   
*Reflects performance at net asset value. Any dividends or capital gains
distributions paid by the Fund are treated as if reinvested at net asset value
as of the payment date and any dividends paid by the mutual funds comprising the
Index are treated as if reinvested on the ex-dividend date.

         The difference in relative performance for the performance period is +7
percentage points. Accordingly, the annualized management fee rate for the last
month of the performance period would be calculated as follows: an appropriate
percentage (based upon the number of days in the month) of the Basic Fee of
0.60% would be multiplied by the Fund's average daily net assets for the month
resulting in a dollar amount. The +7 percentage point difference is multiplied
by the performance adjustment rate of 0.01% producing a rate of 0.07%. An
appropriate percentage of this rate (based upon the number of days in the month)
is then multiplied by the average daily net assets of the Fund over the
performance period resulting in a dollar amount which is added to the dollar
amount of the Basic Fee. The management fee is the Basic Fee adjusted by the
dollar amount of the performance adjustment calculated for the performance
period. If the investment performance of the Index during the performance period
exceeded the


                                       12


<PAGE>


performance record of the Fund, the dollar amount of performance adjustment
would be deducted from the Basic Fee.    

         Because the adjustment to the Basic Fee is based on the comparative
performance of the Fund and the record of the Index, the controlling factor is
not whether Fund performance is up or down, but whether it is up or down more or
less than the record of the Index. Moreover, the comparative investment of the
Fund is based solely on the relevant performance period without regard to the
cumulative performance over a longer or shorter period of time.

         From time to time, the Trustees may determine that another securities
index is a more appropriate benchmark than the Index for purposes of evaluating
the performance of the Fund. In such event, a successor index may be substituted
for the Index. However, the calculation of the performance adjustment for any
portion of the performance period prior to the adoption of the successor index
would still be based upon the Fund's performance compared to the Index.

         The Fund's current management contract with PMC became effective May 1,
1996. Under the terms of the contract, beginning on May 1, 1996 the Fund paid
management fees at a rate equal to the Basic Fee plus or minus the amount of the
performance adjustment for the current month and the preceding 35 months. At the
end of each succeeding month, the performance period will roll forward one month
so that it is always a 36-month period consisting of the current month and the
prior 35 months as described above. If including the initial rolling performance
period (that is, the period prior to the effectiveness of the management
contract) has the effect of increasing the Basic Fee for any month, such
aggregate prior results will be treated as Index neutral for purposes of
calculating the performance adjustment for such month. Otherwise, the
performance adjustment will be made as described above.

         The Basic Fee is computed daily, the performance fee adjustment is
calculated once per month and the entire management fee is normally paid
monthly.

         Prior to May 1, 1996, as compensation for its management services and
expenses incurred, PMC received 0.50% per annum of the Fund's average daily net
assets up to $250,000,000, 0.48% of such assets between $250,000,000 and
$300,000,000, and 0.45% of such assets in excess of $300,000,000. The fee was
computed daily and paid monthly.

   
         During its fiscal years ended December 31, 1997, 1996 and 1995, the
Fund paid or owed management fees to PMC of approximately $21,236,502,
$13,798,000 and $10,330,000, respectively.    

4. SHAREHOLDER SERVICING/TRANSFER AGENT

   
         The Fund has contracted with PSC, 60 State Street, Boston,
Massachusetts 02109, to act as its shareholder servicing and transfer agent.
This contract may be terminated without penalty by either party upon 90 days'
written notice.

         Under the terms of its contract with the Fund, PSC services shareholder
accounts, and its duties include: (i) processing sales, redemptions and
exchanges of Fund shares; (ii) distributing dividends and capital gains
associated with Fund portfolio accounts; and (iii) maintaining account records
and responding to shareholder inquiries.

         PSC receives an annual fee of $22.75 per Class A, Class B and Class C
shareholder account from the Fund as compensation for the services described
above. PSC is also reimbursed by the Fund for its


                                       13


<PAGE>


     out-of-pocket expenditures. The annual fee is set at an amount determined
by vote of a majority of the Trustees (including a majority of the Trustees who
are not parties to the contract with PSC or interested persons of any such
parties) to be comparable to fees for such services being paid by other
investment companies. The Fund may compensate entities which have agreed to
provide certain sub-accounting services such as specific transaction processing
and recordkeeping services. Any such payments by the Fund would be in lieu of
the per account fee which would otherwise be paid by the Fund to PSC.    

5. CUSTODIAN

   
         Brown Brothers Harriman & Co., 40 Water Street, Boston, Massachusetts
02109, is the custodian (the "Custodian") of the Fund's assets. The Custodian's
responsibilities include safekeeping and controlling the Fund's cash and
securities, handling the receipt and delivery of securities, and collecting
interest and dividends on the Fund's investments. The Custodian does not
determine the investment policies of the Fund or decide which securities the
Fund will buy or sell. The Fund may invest in securities, including repurchase
agreements, issued by the Custodian and deal with the Custodian as principal in
securities transactions. Portfolio securities may be deposited into the Federal
Reserve-Treasury Department Book Entry System or the Depository Trust Company.
    

6. PRINCIPAL UNDERWRITER

   
         PFD, 60 State Street, Boston, Massachusetts 02109, serves as the
principal underwriter for the Fund in connection with the continuous offering of
its shares. During the fiscal years ended November 30, 1997, 1996 and 1995, net
underwriting commissions retained by PFD were $1,566,827, $1,176,156 and
$923,858, respectively. Commissions reallowed to dealers during such periods
were $10,273,818, $7,758,483 and $6,147,056, respectively.    

         The Fund will not generally issue Fund shares for consideration other
than cash. At the Fund's sole discretion, however, it may issue Fund shares for
consideration other than cash in connection with a reorganization, statutory
merger or other acquisition of portfolio securities.

   
7. UNDERWRITING AGREEMENT AND DISTRIBUTION PLANS

         The Fund entered into an underwriting agreement, dated May 1, 1996,
with PFD. The underwriting agreement will continue from year to year if annually
approved by the Trustees. The underwriting agreement provides that PFD will bear
the expenses for the distribution of the Fund's shares, except for expenses
incurred by PFD for which it is reimbursed or compensated by the Fund under the
distribution plans (discussed below). PFD bears all expenses it incurs in
providing services under the underwriting agreement. Such expenses include
compensation to its employees and representatives and to securities dealers for
distribution-related services performed for the Fund. PFD also pays certain
expenses in connection with the distribution of the Fund's shares, including the
cost of preparing, printing and distributing advertising or promotional
materials, and the cost of printing and distributing prospectuses and
supplements to prospective shareholders. The Fund bears the cost of registering
its shares under federal, state and foreign securities law. The Fund and PFD
have agreed to indemnify each other against certain liabilities, including
liabilities under the Securities Act of 1933, as amended. Under the underwriting
agreement, PFD will use its best efforts in rendering services to the Fund.    

         The Fund has adopted a plan of distribution pursuant to Rule 12b-1
under the 1940 Act with respect to its Class A, Class B and Class C shares (the
"Class A Plan," the "Class B Plan" and the "Class C Plan") (together, the
"Plans").


                                       14


<PAGE>


CLASS A PLAN

         Pursuant to the Class A Plan the Fund may reimburse PFD for its
expenditures in financing any activity primarily intended to result in the sale
of the Class A shares of the Fund. Certain categories of such expenditures have
been approved by the Board of Trustees and are set forth in the Prospectus. See
"Distribution Plans" in the Prospectus. The expenses of the Fund pursuant to the
Class A Plan are accrued on a fiscal year basis and may not exceed the annual
rate of 0.25% of the Fund's average annual net assets attributable to Class A
shares.

CLASS B PLAN

   
         The Class B Plan provides that the Fund shall pay PFD, as the Fund's
distributor for its Class B shares, a daily distribution fee equal on an annual
basis to 0.75% of the Fund's average daily net assets attributable to Class B
shares and will pay PFD a service fee equal to 0.25% of the Fund's average daily
net assets attributable to Class B shares (which PFD will in turn pay to
securities dealers which enter into a sales agreement with PFD at a rate of up
to 0.25% of the Fund's average daily net assets attributable to Class B shares
owned by investors for whom that securities dealer is the holder or dealer of
record). This service fee is intended to be in consideration of personal
services and/or account maintenance services rendered by the dealer with respect
to Class B shares. PFD will advance to dealers the first-year service fee at a
rate equal to 0.25% of the amount invested. As compensation therefor, PFD may
retain the service fee paid by the Fund with respect to such shares for the
first year after purchase. Dealers will become eligible for additional service
fees with respect to such shares commencing in the thirteenth month following
purchase. Dealers may from time to time be required to meet certain other
criteria in order to receive service fees. PFD or its affiliates are entitled to
retain all service fees payable under the Class B Plan for which there is no
dealer of record or for which qualification standards have not been met as
partial consideration for personal services and/or account maintenance services
performed by PFD or its affiliates for shareholder accounts.

         The purpose of distribution payments to PFD under the Class B Plan is
to compensate PFD for its distribution services with respect to Class B shares
of the Fund. PFD pays commissions to dealers as well as expenses of printing
prospectuses and reports used for sales purposes, expenses with respect to the
preparation and printing of sales literature and other distribution-related
expenses, including, without limitation, the cost necessary to provide
distribution-related services, or personnel, travel, office expenses and
equipment. The Class B Plan also provides that PFD will receive all CDSCs
attributable to Class B shares. (See "Distribution Plans" in the Prospectus.)
When a broker-dealer sells Class B shares and elects, with PFD's approval, to
waive its right to receive the commission normally paid at the time of the sale,
PFD may cause all or a portion of the distribution fees described above to be
paid to the broker-dealer.    

CLASS C PLAN

   
         The Class C Plan provides that the Fund will pay PFD, as the Fund's
distributor for its Class C shares, a distribution fee accrued daily and paid
quarterly, equal on an annual basis to 0.75% of the Fund's average daily net
assets attributable to Class C shares and will pay PFD a service fee equal to
0.25% of the Fund's average daily net assets attributable to Class C shares. PFD
will in turn pay to securities dealers which enter into a sales agreement with
PFD a distribution fee and a service fee at rates of up to 0.75% and 0.25%,
respectively, of the Fund's average daily net assets attributable to Class C
shares owned by investors for whom that securities dealer is the holder or
dealer of record. The service fee is intended to be in consideration of personal
services and/or account maintenance services rendered


                                       15


<PAGE>


by the dealer with respect to Class C shares. PFD will advance to dealers
the first-year service fee at a rate equal to 0.25% of the amount invested. As
compensation therefor, PFD may retain the service fee paid by the Fund with
respect to such shares for the first year after purchase. Commencing in the
thirteenth month following a purchase of Class C shares, dealers will become
eligible for additional service fees at a rate of up to 0.25% of the current
value of the amount invested and additional compensation at a rate of up to
0.75% of the average net asset value with respect to such shares. Dealers may
from time to time be required to meet certain other criteria in order to receive
service fees. PFD or its affiliates are entitled to retain all service fees
payable under the Class C Plan for which there is no dealer of record or for
which qualification standards have not been met as partial consideration for
personal services and/or account maintenance services performed by PFD or its
affiliates for shareholder accounts.

         The purpose of distribution payments to PFD under the Class C Plan is
to compensate PFD for its distribution services with respect to the Class C
shares of the Fund. PFD pays commissions to dealers as well as expenses of
printing prospectuses and reports used for sales purposes, expenses with respect
to the preparation and printing of sales literature and other
distribution-related expenses, including, without limitation, the cost necessary
to provide distribution-related services, or personnel, travel, office expenses
and equipment. The Class C Plan also provides that PFD will receive all CDSCs
attributable to Class C shares. (See "Distribution Plans" in the Prospectus.)
When a broker-dealer sells Class C shares and elects, with PFD's approval, to
waive its right to receive the commission normally paid at the time of the sale,
PFD may cause all or a portion of the distribution fees described above to be
paid to the broker-dealer.    

GENERAL

   
         In accordance with the terms of the Plans, PFD provides to the Fund for
review by the Trustees a quarterly written report of the amounts expended under
the respective Plans and the purpose for which such expenditures were made. In
the Trustees' quarterly review of the Plans, they will consider the continued
appropriateness and the level of reimbursement or compensation the Plans
provide.

         No interested person of the Fund, nor any Trustee of the Fund who is
not an interested person of the Fund, has any direct or indirect financial
interest in the operation of the Plans except to the extent that PFD and certain
of its employees may be deemed to have such an interest as a result of receiving
a portion of the amounts expended under the Plans by the Fund and except to the
extent certain officers may have an interest in PFD's ultimate parent, PGI.

The Plans were adopted by a majority vote of the Board of Trustees, including
all of the Trustees who are not, and were not at the time they voted, interested
persons of the Fund, as defined in the 1940 Act (none of whom has or had any
direct or indirect financial interest in the operation of the Plans), cast in
person at a meeting called for the purpose of voting on the Plans. In approving
the Plans, the Trustees identified and considered a number of potential benefits
which the Plans may provide. The Board of Trustees believes that there is a
reasonable likelihood that the Plans will benefit the Fund and its current and
future shareholders. Under their terms, the Plans remain in effect from year to
year provided such continuance is approved annually by vote of the Trustees in
the manner described above. The Plans may not be amended to increase materially
the annual percentage limitation of average net assets which may be spent for
the services described therein without approval of the shareholders of the Fund
affected thereby, and material amendments of the Plans must also be approved by
the Trustees in the manner described above. A Plan may be terminated at any
time, without payment of any penalty, by vote of the majority of the Trustees
who are not interested persons of the Fund and who have no direct or indirect
financial interest in the operations of the Plan, or by a vote of a majority of
the outstanding voting securities (as defined in the


                                       16


<PAGE>


1940 Act) of the respective class of the Fund. A Plan will automatically
terminate in the event of its assignment (as defined in the 1940 Act).

         During the fiscal year ended December 31, 1997, the Fund incurred total
distribution fees pursuant to the Fund's Class A Plan, Class B Plan and Class C
Plan, respectively, as follows: $6,845,927, $268,672 and $44,536. Distribution
fees were paid by the Fund to PFD in reimbursement of or as compensation for
expenses related to servicing shareholder accounts and to compensate dealers and
sales personnel.

         Redemptions of each class of shares may be subject to a CDSC. A CDSC of
1.00% may be imposed on redemptions of certain net asset value purchases of
Class A shares within one year of purchase. Class B shares that are redeemed
within six years of purchase are subject to a CDSC at declining rates beginning
at 4% based on the lower of the cost or market value of the shares being
redeemed. Redemptions of Class C shares within one year of purchase are subject
to a CDSC of 1.00%. See "How to Buy Fund Shares" in the Prospectus. During the
fiscal year ended December 31, 1997, CDSCs in the amount of $21,916 were paid to
PFD.    

8. INDEPENDENT PUBLIC ACCOUNTANTS

   
         Arthur Andersen LLP, 225 Franklin Street, Boston, Massachusetts 02210,
is the Fund's independent public accountants, providing audit services, tax
return review, and assistance and consultation with respect to the preparation
of filings with the SEC.    

9. PORTFOLIO TRANSACTIONS

   
All orders for the purchase or sale of portfolio securities are placed on behalf
of the Fund by PMC pursuant to authority contained in the management contract.
In selecting brokers or dealers, PMC considers various relevant factors,
including, but not limited to, the size and type of the transaction; the nature
and character of the markets for the security to be purchased or sold; the
execution efficiency, settlement capability, and financial condition of the
dealer; the dealer's execution service rendered on a continuing basis; and the
reasonableness of any dealer spreads.

         PMC may select broker-dealers which provide brokerage and/or research
services to the Fund and/or other investment companies or accounts managed by
PMC. In addition, consistent with Section 28(e) of the Securities Act of 1934,
as amended, the Fund may pay commissions to such broker-dealers in an amount
greater than the amount another firm might charge. Such services may include
advice concerning the value of securities; the advisability of investing in,
purchasing or selling securities; the availability of securities or the
purchasers or sellers of securities; providing stock price quotation services;
furnishing analyses, electronic information services, manuals and reports
concerning issuers, industries, securities, economic factors and trends,
portfolio strategy, performance of accounts, comparative fund statistics and
credit rating service information; and effecting securities transactions and
performing functions incidental thereto (such as clearance and settlement). PMC
maintains a listing of dealers who provide such services on a regular basis.
However, because many transactions on behalf of the Fund and other investment
companies or accounts managed by PMC are placed with broker-dealers (including
broker-dealers on the listing) without regard to the furnishing of such
services, it is not possible to estimate the proportion of such transactions
directed to such dealers solely because such services were provided. Management
believes that no exact dollar value can be calculated for such services.


                                       17


<PAGE>


         The research received from broker-dealers may be useful to PMC in
rendering investment management services to the Fund and other investment
companies or accounts managed by PMC, although not all of such research may be
useful to the Fund. Conversely, such information provided by brokers or dealers
who have executed transaction orders on behalf of such other PMC clients may be
useful to PMC in carrying out its obligations to the Fund. The receipt of such
research has not reduced PMC's normal independent research activities; however,
it enables PMC to avoid the additional expenses which might otherwise be
incurred if it were to attempt to develop comparable information through its own
staff.

         In circumstances where two or more broker-dealers offer comparable
prices and executions, preference may be given to a broker-dealer which has sold
shares of the Fund as well as shares of other investment companies or accounts
managed by PMC. This policy does not imply a commitment to execute all portfolio
transactions through all broker-dealers that sell shares of the Fund. For the
fiscal years ended December 31, 1997, 1996 and 1995, the Fund paid or accrued
aggregate brokerage commissions of $1,265,137, $1,543,744 and $1,983,083,
respectively. Differences in brokerage commissions reflected above resulted from
decreased portfolio turnover throughout the respective periods. See "Financial
Highlights" in the Prospectus.

         In addition to the Fund, PMC acts as investment adviser to other
Pioneer mutual funds and certain private accounts with investment objectives
similar to those of the Fund. As such, securities may frequently meet the
investment objectives of the Fund, such other mutual funds and such private
accounts. In such cases, the decision to recommend a purchase to one mutual fund
or account rather than the other is based on a number of factors. The
determining factors in most cases are the amount of securities of the issuer
then outstanding, the value of those securities and the market for them. Other
factors considered in the investment recommendations include other investments
which each fund or account presently has in a particular industry and the
availability of investment funds in each fund or account.

         It is possible that at times identical securities will be held by more
than one fund and/or account. However, positions in the same issue may vary and
the length of time that any fund or account may choose to hold its investment in
the same issue may likewise vary. To the extent that the Fund, another Pioneer
mutual fund or a private account managed by PMC seeks to acquire the same
security at about the same time, the Fund may not be able to acquire as large a
position in such security as it desires or it may have to pay a higher price for
the security. Similarly, the Fund may not be able to obtain as large an
execution of an order to sell or as high a price for any particular portfolio
security if PMC decides to sell on behalf of another account the same portfolio
security at the same time. On the other hand, if the same securities are bought
or sold at the same time by more than one fund or account, the resulting
participation in volume transactions could produce better executions for the
Fund or the account. In the event that more than one account purchases or sells
the same security on a given date, the purchases and sales will normally be made
as nearly as practicable on a pro rata basis in proportion to the amounts
desired to be purchased or sold by each.

         The Trustees periodically review PMC's performance of its
responsibilities in connection with the placement of portfolio transactions on
behalf of the Fund.    

   
10. TAX STATUS    

   
         It is the Fund's policy to meet the requirements of Subchapter M of the
Code for qualification as a regulated investment company. These requirements
relate to the sources of the Fund's income, the diversification of its assets
and the distribution of its income to shareholders. If the Fund meets all such
    


                                       18


<PAGE>


requirements and distributes to its shareholders, in accordance with the Code's
timing requirements, all investment company taxable income and net capital gain,
if any, which it earns, the Fund will be relieved of the necessity of paying
federal income tax.

   
         In order to qualify as a regulated investment company under Subchapter
M, the Fund must, among other things, derive at least 90% of its annual gross
income from dividends, interest, payments with respect to securities loans,
gains from the sale or other disposition of stock, securities or foreign
currencies, or other income (including gains from options) derived with respect
to its business of investing in such stock, securities or currencies (the "90%
income test") and satisfy certain annual distribution and quarterly
diversification requirements. For purposes of the 90% income test, income the
Fund earns from equity interests in certain entities that are not treated as
corporations (e.g., are treated as partnerships or trusts) for U.S. tax purposes
will generally have the same character for the Fund as in the hands of such
entities; consequently, the Fund may be required to limit its equity investments
in such entities that earn fee income, rental income, or other nonqualifying
income.

         Dividends from investment company taxable income, which includes net
investment income, net short-term capital gain in excess of net long-term
capital loss, and certain net foreign exchange gains, are taxable as ordinary
income, whether received in cash or reinvested in additional shares. Dividends
from net long-term capital gain in excess of net short-term capital loss ("net
capital gain"), if any, whether received in cash or reinvested in additional
shares, are taxable to the Fund's shareholders as capital gains for federal
income tax purposes without regard to the length of time shares of the Fund have
been held. As a result of the enactment of the Taxpayer Relief Act of 1997 (the
"1997 TRA") on August 5, 1997, gain recognized after May 6, 1997 from the sale
of a capital asset is taxable to individual (noncorporate) investors at
different maximum federal income tax rates, depending generally upon the tax
holding period for the asset, the federal income tax bracket of the taxpayer,
and the dates the asset was acquired and/or sold. The Treasury Department has
issued guidance under the 1997 TRA that (subject to possible modification by
future "technical corrections" legislation) enables the Fund to pass through to
its shareholders the benefits of the capital gains tax rates enacted in the 1997
TRA. The Fund will provide appropriate information to its shareholders about its
distributions, including the tax rate(s) applicable to its distributions from
long-term capital gains, in accordance with this and any future guidance.
Shareholders should consult their own tax advisers on the correct application of
these new rules in their particular circumstances.    

         Any dividend declared by the Fund in October, November or December as
of a record date in such a month and paid during the following January will be
treated for federal income tax purposes as received by shareholders on December
31 of the calendar year in which it is declared.

   
         Foreign exchange gains and losses realized by the Fund in connection
with certain transactions involving foreign currency-denominated debt
securities, foreign currencies, or payables or receivables denominated in a
foreign currency are subject to Section 988 of the Code, which generally causes
such gains and losses to be treated as ordinary income and losses and may affect
the amount, timing and character of distributions to shareholders. Under future
regulations, any transactions in foreign currency that are not directly related
to the Fund's investments in stock or securities (or its options with respect to
stock or securities) may need to be limited in order to enable the Fund to
satisfy the 90% income test. If the net foreign exchange loss for a year were to
exceed the Fund's investment company taxable income (computed without regard to
such loss), the resulting ordinary loss for such year would not be deductible by
the Fund or its shareholders in future years.


                                       19


<PAGE>


         If the Fund acquires any equity interest (under proposed regulations,
generally including not only stock but also an option to acquire stock such as
is inherent in a convertible bond) in certain foreign corporations that receive
at least 75% of their annual gross income from passive sources (such as
interest, dividends, certain rents and royalties, or capital gains) or hold at
least 50% of their assets in investments producing such passive income ("passive
foreign investment companies"), the Fund could be subject to federal income tax
and additional interest charges on "excess distributions" received from such
companies or gain from the sale of stock in such companies, even if all income
or gain actually received by the Fund is timely distributed to its shareholders.
The Fund would not be able to pass through to its shareholders any credit or
deduction for such a tax. An election may generally be available that would
ameliorate these adverse tax consequences, but any such election could require
the Fund to recognize taxable income or gain (subject to tax distribution
requirements) without the concurrent receipt of cash. These investments could
also result in the treatment of associated capital gains as ordinary income. The
Fund may limit and/or manage its holdings in passive foreign investment
companies to minimize its tax liability or maximize its return from these
investments.    

         The Fund may invest to a limited extent in debt obligations that are in
the lowest rating categories or are unrated, including debt obligations of
issuers not currently paying interest or who are in default. Investments in debt
obligations that are at risk of or in default present special tax issues for the
Fund. Tax rules are not entirely clear about issues such as when the Fund may
cease to accrue interest, original issue discount, or market discount, when and
to what extent deductions may be taken for bad debts or worthless securities,
how payments received on obligations in default should be allocated between
principal and income, and whether exchanges of debt obligations in a workout
context are taxable. These and other issues will be addressed by the Fund, in
the event it invests in such securities, in order to seek to ensure that it
distributes sufficient income to preserve its status as a regulated investment
company and does not become subject to federal income or excise tax.

   
         If the Fund invests in certain pay-in-kind securities ("PIKs"), zero
coupon securities, deferred interest securities or, in general, any other
securities with original issue discount (or with market discount if the Fund
elects to include market discount in income currently), the Fund must accrue
income on such investments for each taxable year, which generally will be prior
to the receipt of the corresponding cash payments. However, the Fund must
distribute, at least annually, all or substantially all of its net income,
including such accrued income, to shareholders to qualify as a regulated
investment company under the Code and avoid federal income and excise taxes.
Therefore, the Fund may have to dispose of its portfolio securities under
disadvantageous circumstances to generate cash, or may have to leverage itself
by borrowing the cash, to satisfy distribution requirements.    

         For federal income tax purposes, the Fund is permitted to carry forward
a net capital loss for any year to offset its capital gains, if any, during the
eight years following the year of the loss. To the extent subsequent capital
gains are offset by such losses, they would not result in federal income tax
liability to the Fund and therefore are not expected to be distributed as such
to shareholders. As of the end of its most recent taxable year, the Fund had no
capital loss carryforwards.

   
         At the time of an investor's purchase of Fund shares, a portion of the
purchase price may be attributable to realized or unrealized appreciation in the
Fund's portfolio or undistributed taxable income of the Fund. Consequently,
subsequent distributions by the Fund on these shares from such appreciation or
income may be taxable to such investor even if the net asset value of the
investor's shares is, as a result of the distributions, reduced below the
investor's cost for such shares and the distributions economically represent a
return of a portion of the investment.


                                       20


<PAGE>


         Redemptions and exchanges are taxable events for shareholders that are
subject to tax. Shareholders should consult their own tax advisers with
reference to their individual circumstances to determine whether any particular
transaction in Fund shares is properly treated as a sale for tax purposes, as
the following discussion assumes, and the character of and tax rate applicable
to any gains or losses recognized in such transactions under the new rate
structure enacted in the 1997 TRA. Any loss realized by a shareholder upon the
redemption, exchange or other disposition of shares with a tax holding period of
six months or less will be treated as a long-term capital loss to the extent of
any amounts treated as distributions of long-term capital gain with respect to
such shares.

         In addition, if Class A shares redeemed or exchanged have been held for
less than 91 days, (1) in the case of a reinvestment in the Fund at net asset
value pursuant to the reinvestment privilege, the sales charge paid on such
shares is not included in their tax basis under the Code, and (2) in the case of
an exchange, all or a portion of the sales charge paid on such shares is not
included in their tax basis under the Code, to the extent a sales charge that
would otherwise apply to the shares received is reduced pursuant to the exchange
privilege. In either case, the portion of the sales charge not included in the
tax basis of the shares redeemed or surrendered in an exchange is included in
the tax basis of the shares acquired in the reinvestment or exchange. Losses on
redemptions or other dispositions of shares may be disallowed under "wash sale"
rules in the event of other investments in the Fund (including those made
pursuant to reinvestment of dividends and/or capital gain distributions) within
a period of 61 days beginning 30 days before and ending 30 days after a
redemption or other disposition of shares. In such a case, the disallowed
portion of any loss would be included in the federal tax basis of the shares
acquired in the other investments.

         Options written by the Fund on certain securities may cause the Fund to
recognize gains or losses from marking-to-market even though such options may
not have lapsed, been closed out, or exercised. The tax rules applicable to
these contracts may affect the characterization as long-term or short-term of
some capital gains and losses realized by the Fund. Additionally, the Fund may
be required to recognize gain if an option or other transaction that is not
subject to the mark to market rules is treated as a "constructive sale" of an
"appreciated financial position" held by the Fund under Section 1259 of the
Code. Any net mark to market gains and/or gains from constructive sales may also
have to be distributed to satisfy the distribution requirements referred to
above even though no corresponding cash amounts may concurrently be received,
possibly requiring the disposition of portfolio securities or borrowing to
obtain the necessary cash. Losses on certain options and/or offsetting positions
(portfolio securities or other positions with respect to which the Fund's risk
of loss is substantially diminished by one or more options) may also be deferred
under the tax straddle rules of the Code, which may also affect the
characterization of capital gains or losses from straddle positions and certain
successor positions as long-term or short-term. The effect of these rules may be
mitigated to the extent the Fund limits its option-writing to "qualified covered
call options" on portfolio stock. Certain tax elections may be available that
would enable the Fund to ameliorate some adverse effects of the tax rules
described in this paragraph. The tax rules applicable to options and straddles
may affect the amount, timing and character of the Fund's income and losses and
hence of its distributions to shareholders.

         For purposes of the 70% dividends-received deduction generally
available to corporations under the Code, dividends received by the Fund from
U.S. corporations in respect of any share of stock with a tax holding period of
at least 46 days (91 days in the case of certain preferred stock) extending
before and after each dividend held in an unleveraged position and distributed
and designated by the Fund may be treated as qualifying dividends. Any corporate
shareholder should consult its tax advisor regarding the possibility that its
tax basis in its shares may be reduced, for federal income tax purposes, by
reason of "extraordinary dividends" received with respect to the shares and, to
the extent such basis would be


                                       21


<PAGE>


reduced below zero, current recognition of income may be required. In order
to qualify for the deduction, corporate shareholders must meet the minimum
holding period requirement stated above with respect to their Fund shares,
taking into account any holding period reductions from certain hedging or other
transactions or positions that diminish their risk of loss with respect to their
Fund shares, and, if they borrow to acquire or otherwise incur debt attributable
to Fund shares, they may be denied a portion of the dividends-received
deduction. The entire qualifying dividend, including the otherwise deductible
amount, will be included in determining the excess (if any) of a corporation's
adjusted current earnings over its alternative minimum taxable income, which may
increase a corporation's alternative minimum tax liability.    

         The Fund may be subject to withholding and other taxes imposed by
foreign countries including taxes on interest, dividends and capital gains with
respect to its investments in those countries. Tax conventions between certain
countries and the U.S. may reduce or eliminate such taxes in some cases. The
Fund does not expect to satisfy the requirements for passing through to its
shareholders their pro rata shares of qualified foreign taxes paid by the Fund,
with the result that shareholders will not include such taxes in their gross
incomes and will not be entitled to a tax deduction or credit for such taxes on
their own tax returns.

         Different tax treatment, including penalties on certain excess
contributions and deferrals, certain pre-retirement and post-retirement
distributions, and certain prohibited transactions, is accorded to accounts
maintained as qualified retirement plans. Shareholders should consult their tax
advisers for more information.

         Federal law requires that the Fund withhold (as "backup withholding")
31% of reportable payments, including dividends, capital gain dividends and the
proceeds of redemptions (including exchanges) and repurchases to shareholders
who have not complied with IRS regulations. In order to avoid this withholding
requirement, shareholders must certify on their Account Applications, or on
separate IRS Forms W-9, that the Social Security Number or other Taxpayer
Identification Number they provide is their correct number and that they are not
currently subject to backup withholding, or that they are exempt from backup
withholding. The Fund may nevertheless be required to withhold if it receives
notice from the IRS or a broker that the number provided is incorrect or backup
withholding is applicable as a result of previous underreporting of interest or
dividend income.

   
         If, as anticipated, the Fund continues to qualify as a regulated
investment company under the Code, it will not be required to pay any
Massachusetts income, corporate excise or franchise taxes or any Delaware
corporation income tax.    

         The description of certain federal tax provisions above relates only to
U.S. federal income tax consequences for shareholders who are U.S. persons, i.e.
U.S. citizens or residents or U.S. corporations, partnerships, trusts or
estates, and who are subject to U.S. federal income tax. This description does
not address the special tax rules that may be applicable to particular types of
investors, such as financial institutions, insurance companies, securities
dealers, or tax-exempt or tax-deferred plans, accounts or entities. Investors
other than U.S. persons may be subject to different U.S. tax treatment,
including a possible 30% non-resident alien U.S. withholding tax (or
non-resident alien withholding tax at a lower treaty rate) on amounts treated as
ordinary dividends from the Fund and, unless an effective IRS Form W-8 or
authorized substitute for Form W-8 is on file, to 31% backup withholding on
certain other payments from the Fund. Shareholders should consult their own tax
advisers on these matters and on state, local and other applicable tax laws.


                                       22


<PAGE>


11. DESCRIPTION OF SHARES

   
         The Declaration permits its Board of Trustees to authorize the issuance
of an unlimited number of full and fractional shares of beneficial interest
(without par value) which may be divided into such separate series as the
Trustees may establish. Currently, the Fund consists of only one series. The
Trustees may establish additional series of shares, and may divide or combine
the shares into a greater or lesser number of shares without thereby changing
the proportionate beneficial interests in the Fund. The Declaration further
authorizes the Trustees to classify or reclassify any series of the shares into
one or more classes. Pursuant thereto, the Trustees have authorized the issuance
of three classes of shares of the Fund, designated Class A, Class B and Class C
shares. Each share of a class represents an equal proportionate interest in the
assets of the Fund allocable to that class. Upon liquidation of the Fund,
shareholders of each class of the Fund are entitled to share pro rata in the
Fund's net assets allocable to such class available for distribution to
shareholders. The Fund reserves the right to create and issue additional series
or classes of shares, in which case the shares of each class of a series would
participate equally in the earnings, dividends and assets allocable to that
class of the particular series.

         Shareholders are entitled to one vote for each share held and may vote
in the election of Trustees and on other matters submitted to meetings of
shareholders. Although Trustees are not elected annually by the shareholders,
shareholders have, under certain circumstances, the right to remove one or more
Trustees.    

   
         The shares of each series of the Fund are entitled to vote separately
to approve investment advisory agreements or changes in investment restrictions,
but shareholders of all series vote together in the election and selection of
Trustees and accountants. Shares of all series of the Fund vote together as a
class on matters that affect all series of the Fund in substantially the same
manner. As to matters affecting a single series or class, shares of such series
or class will vote separately. No amendment adversely affecting the rights of
shareholders may be made to the Declaration without the affirmative vote of a
majority of its shares. Shares have no preemptive or conversion rights. Shares
are fully paid and non-assessable by the Fund, except as stated below.    

12. CERTAIN LIABILITIES

   
         The Fund has previously been organized as a Delaware corporation, a
Massachusetts corporation and a Massachusetts business trust and was reorganized
as a Delaware business trust on May 1, 1996, pursuant to an Agreement and Plan
of Reorganization approved by the shareholders of the Fund. As a Delaware
business trust, the Fund's operations are governed by the Declaration. A copy of
the Fund's Certificate of Trust, dated May 1, 1996, is on file with the office
of the Secretary of State of Delaware. Generally, Delaware business trust
shareholders are not personally liable for obligations of the Delaware business
trust under Delaware law. The Delaware Business Trust Act (the "Delaware Act")
provides that a shareholder of a Delaware business trust shall be entitled to
the same limitation of liability extended to shareholders of private for-profit
corporations. The Declaration expressly provides that the Fund is organized
under the Delaware Act and that the Declaration is to be governed by Delaware
law. There is nevertheless a remote possibility that a Delaware business trust,
such as the Fund, might become a party to an action in another state whose
courts refused to apply Delaware law, in which case the trust's shareholders
could become subject to personal liability.    

   
         To guard against this risk, the Declaration (i) contains an express
disclaimer of shareholder liability for acts or obligations of the Fund and
provides that notice of such disclaimer may be given in each agreement,
obligation or instrument entered into or executed by the Fund or its Trustees,
    


                                       23


<PAGE>


(ii) provides for the indemnification out of Fund property of any shareholders
held personally liable for any obligations of the Fund or any series of the Fund
and (iii) provides that the Fund shall, upon request, assume the defense of any
claim made against any shareholder for any act or obligation of the Fund and
satisfy any judgment thereon. Thus, the risk of a shareholder incurring
financial loss beyond his or her investment because of shareholder liability is
limited to circumstances in which all of the following factors are present: (1)
a court refused to apply Delaware law; (2) the liability arose under tort law
or, if not, no contractual limitation of liability was in effect; and (3) the
Fund itself would be unable to meet its obligations. In light of Delaware law,
the nature of the Fund's business and the nature of its assets, the risk of
personal liability to a Fund shareholder is remote.

   
         The Declaration further provides that the Fund shall indemnify each of
its Trustees and officers against liabilities and expenses reasonably incurred
by them, in connection with, or arising out of, any action, suit or proceeding,
threatened against or otherwise involving such Trustee or officer, directly or
indirectly, by reason of being or having been a Trustee or officer of the Fund.
The Declaration does not authorize the Fund to indemnify any Trustee or officer
against any liability to which he or she would otherwise be subject by reason of
or for willful misfeasance, bad faith, gross negligence or reckless disregard of
such person's duties.    

13. DETERMINATION OF NET ASSET VALUE

   
         The net asset value per share of each class of the Fund is determined
as of the close of regular trading on the Exchange (normally 4:00 p.m., Eastern
time) on each day on which the Exchange is open for trading. As of the date of
this Statement of Additional Information, the Exchange is open for trading every
weekday except for 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. The net asset value per share of each
class of the Fund is also determined on any other day in which the level of
trading in its portfolio securities is sufficiently high so that the current net
asset value per share might be materially affected by changes in the value of
its portfolio securities. The net asset value per share of the Fund is not
determined on any day in which no purchase orders in good order for the shares
of the Fund are received and no shares are tendered for redemption.

         The net asset value per share of each class of the Fund is computed by
taking the value of all of the Fund's assets attributable to a class, less the
Fund's liabilities attributable to that class, and dividing the result by the
number of outstanding shares of the class. For purposes of determining net asset
value, expenses of the classes of the Fund are accrued daily.

         Securities which have not traded on the date of valuation or securities
for which sales prices are not generally reported are valued at the mean between
the last bid and asked prices. Securities for which no market quotations are
readily available (including those the trading of which has been suspended) will
be valued at fair value as determined in good faith by the Board of Trustees,
although the actual computations may be made by persons acting pursuant to the
direction of the Board of Trustees. The maximum offering price per Class A share
is the net asset value per Class A share, plus the maximum sales charge. Class B
and Class C shares are offered at net asset value without the imposition of an
initial sales charge.    

14. SYSTEMATIC WITHDRAWAL PLAN

   
         The Systematic Withdrawal Plan ("SWP") is designed to provide a
convenient method of receiving fixed payments at regular intervals from shares
of the Fund deposited by the applicant under the


                                       24


<PAGE>


SWP. The applicant must deposit or purchase for deposit with PSC shares
of the Fund having a total value of not less than $10,000. Periodic payments of
$50 or more will be deposited monthly or quarterly directly into a bank account
designated by the applicant, or will be sent by check to the applicant, or any
person designated by the applicant. Class B accounts must meet the minimum
initial investment requirement prior to establishing a SWP. Withdrawals from
Class B and Class C accounts are limited to 10% of the value of the account at
the time the SWP is established. See "Waiver or Reduction of Contingent Deferred
Sales Charge" in the Prospectus. Designation of another person to receive the
payments subsequent to opening an account must be accompanied by a signature
guarantee.    

         Any income dividends or capital gains distributions on shares under the
SWP will be credited to the SWP account on the payment date in full and
fractional shares at the net asset value per share in effect on the record date.

   
         SWP payments are made from the proceeds of the redemption of shares
deposited under the SWP in a SWP account. To the extent that such redemptions
for periodic withdrawals exceed dividend income reinvested in the SWP account,
such redemptions will reduce and may ultimately exhaust the number of shares
deposited in the Plan account. Redemptions are potentially taxable transactions
to shareholders. In addition, the amounts received by a shareholder cannot be
considered as an actual yield or income on his or her investment because part of
such payments may be a return of his or her investment.    

   
         The SWP may be terminated at any time (1) by written notice to PSC or
from PSC to the shareholder; (2) upon receipt by PSC of appropriate evidence of
the shareholder's death; or (3) when all shares under the SWP have been
redeemed.    

15. LETTER OF INTENT (CLASS A SHARES ONLY)

   
         A Letter of Intent ("LOI") may be established by completing the LOI
section of the Account Application. When you sign the Account Application, you
agree to irrevocably appoint PSC your attorney-in-fact to surrender for
redemption any or all shares held in escrow with full power of substitution. An
LOI is not a binding obligation upon the investor to purchase, or the Fund to
sell, the full amount indicated.

         If the total purchases, less redemptions, exceed the amount specified
under the LOI and are in an amount which would qualify for a further quantity
discount, all transactions will be recomputed on the expiration date of the LOI
to effect the lower sales charge. Any difference in the sales charge resulting
from such recomputation will be either delivered to you in cash or invested in
additional shares at the lower sales charge. The dealer, by signing the Account
Application, agrees to return to PFD, as part of such retroactive adjustment,
the excess of the commission previously reallowed or paid to the dealer over
that which is applicable to the actual amount of the total purchases under the
LOI.

         If the total purchases, less redemptions, are less than the amount
specified under the LOI, you must remit to PFD any difference between the sales
charge on the amount actually purchased and the amount originally specified in
the LOI section of the Account Application. When the difference is paid, the
shares held in escrow will be deposited to your account. If you do not pay the
difference in sales charge within 20 days after written request from PFD or your
dealer, PSC, after receiving instructions from PFD, will redeem the appropriate
number of shares held in escrow to realize the difference and release any
excess. See "How to Purchase Fund Shares Letter of Intent" in the Prospectus for
more information.    


                                       25


<PAGE>


16. INVESTMENT RESULTS

QUOTATIONS, COMPARISONS, AND GENERAL INFORMATION

   
         From time to time, in advertisements, in sales literature, or in
reports to shareholders, the past performance of the Fund may be illustrated
and/or compared to that of other mutual funds with similar investment objectives
and to stock or other relevant indices. For example, the total return of the
Fund's classes may be compared to averages or rankings prepared by LIPPER
ANALYTICAL SERVICES, INC., a widely recognized independent service which
monitors mutual fund performance; STANDARD & POOR'S 500 STOCK INDEX (the "S&P
500"), an index of unmanaged groups of common stock; the DOW JONES INDUSTRIAL
AVERAGE, a recognized unmanaged index of common stocks of 30 industrial
companies listed on the Exchange; or the RUSSELL U.S. EQUITY INDEXES or the
WILSHIRE TOTAL MARKET VALUE INDEX, which are recognized unmanaged indexes of
broad-based common stocks.

         In addition, the performance of the classes of the Fund may be compared
to alternative investment or savings vehicles and/or to indices or indicators of
economic activity, e.g., inflation or interest rates. Performance rankings and
listings reported in newspapers or national business and financial publications,
such as BARRON'S, BUSINESS WEEK, CONSUMERS DIGEST, CONSUMER REPORTS, FINANCIAL
WORLD, FORBES, FORTUNE, INVESTORS BUSINESS DAILY, KIPLINGER'S PERSONAL FINANCE
MAGAZINE, MONEY MAGAZINE, NEW YORK TIMES, SMART MONEY, USA TODAY, U.S. NEWS AND
WORLD REPORT, THE WALL STREET JOURNAL and WORTH may also be cited (if the Fund
is listed in any such publication) or used for comparison, as well as
performance listings and rankings from various other sources including BLOOMBERG
FINANCIAL MARKETS, CDA/WEISENBERGER, DONAGHUE'S MUTUAL FUND ALMANAC, INVESTMENT
COMPANY DATA, INC., JOHNSON'S CHARTS, KANON BLOCH CARRE AND CO., LIPPER
ANALYTICAL SERVICES, INC., MICROPAL, INC., MORNINGSTAR, INC., SCHABACKER
INVESTMENT MANAGEMENT and TOWERS DATA SYSTEMS, INC.

         In addition, from time to time quotations from articles from financial
publications such as those listed above may be used in advertisements, in sales
literature, or in reports to shareholders of the Fund.    

STANDARDIZED AVERAGE ANNUAL TOTAL RETURN
QUOTATIONS AND OTHER PERFORMANCE QUOTATIONS

   
         One of the primary methods used to measure the performance of a class
of the Fund is "total return." Total return will normally represent the
percentage change in value of an account, or of a hypothetical investment in a
class of the Fund, over any period up to the lifetime of that class of the Fund.
Total return calculations will usually assume the reinvestment of all dividends
and capital gains distributions and will be expressed as a percentage increase
or decrease from an initial value for the entire period or for one or more
specified periods within the entire period. Total return percentages for periods
of less than one year will usually be annualized; total return percentages for
periods longer than one year will usually be accompanied by total return
percentages for each year within the period and/or the average annual compounded
total return for the period. The income and capital components of a given return
may be separated and portrayed in a variety of ways in order to illustrate their
relative significance. Performance may also be portrayed in terms of cash or
investment values, without percentages. Past performance cannot guarantee any
particular future result.    

         The Fund's average annual total return quotations for each of its
classes as that information may appear in the Prospectus, this Statement of
Additional Information or in advertising are calculated by standard methods
prescribed by the SEC.


                                       26


<PAGE>


   
         Average annual total return quotations for each class of Fund shares
are computed by finding the average annual compounded rates of return that would
cause a hypothetical investment in the class made on the first day of a
designated period (assuming all dividends and distributions are reinvested) to
equal the ending redeemable value of such hypothetical investment on the last
day of the designated period in accordance with the following formula:    

                  P(1+T)n = ERV

Where:
                  P        =        a hypothetical initial payment of $1,000,
                                    less the maximum sales load of 5.75% for
                                    Class A shares or the deduction of the CDSC
                                    for Class B and Class C shares at the end of
                                    the period

                  T        =        average annual total return

                  n        =        number of years

                  ERV      =        ending redeemable value of the hypothetical
                                    $1,000 initial payment made at the
                                    beginning of the designated period (or
                                    fractional portion thereof)

         For purposes of the above computation, it is assumed that all dividends
and distributions made by the Fund are reinvested at net asset value during the
designated period. The average annual total return quotation is determined to
the nearest 1/100 of 1%.

         In determining the average annual total return (calculated as provided
above), recurring fees, if any, that are charged to all shareholder accounts of
a particular class of shares are taken into consideration. For any account fees
that vary with the size of the account, the account fee used for purposes of the
above computation is assumed to be the fee that would be charged to the class'
mean account size.

   
         The average annual total returns for Class A, Class B and Class C
shares of the Fund as of December 31, 1997 are as follows:    

                                Average Annual Total Return (%)
   
                  One Year    Five Years    Ten Years    Since Inception*

Class A Shares      30.51       17.58         15.13          13.20**
Class B Shares      33.19       N/A           N/A            29.17
Class C Shares      37.25       N/A           N/A            30.60

*Inception was February 13, 1928 for Class A Shares and July 1, 1996for both
Class B and Class C shares. **Return calculated from March 1, 1928.

         The Fund may also present, from time to time, historical information
depicting the value of a hypothetical account over the time period from the
Fund's inception in 1928 until the present. The Fund also may depict summary
results of assumed investments in the Fund for each of the ten-calendar-year
periods in the Fund's history and for the ten-year periods which began at
recognized market highs or ended at recognized market lows. An example of this
historical information describing various performance characteristics of the
Fund from 1928 until December 31, 1997 is contained in Appendix B.    


                                       27


<PAGE>


         In presenting investment results, the Fund may also include references
to certain financial planning concepts, including (a) an investor's need to
evaluate his financial assets and obligations to determine how much to invest;
(b) his need to analyze the objectives of various investments to determine where
to invest; and (c) his need to analyze his time frame for future capital needs
to determine how long to invest. The investor controls these three factors, all
of which affect the use of investments in building assets.

AUTOMATED INFORMATION LINE

         FactFoneSM, Pioneer's 24-hour automated information line, allows
shareholders to dial toll-free 1-800-225-4321 and hear recorded fund
information, including:

         o        net asset value prices for all Pioneer mutual funds;

         o        annualized 30-day yields on Pioneer fixed income funds;

   
         o        annualized 7-day yields and 7-day effective (compound) yields
                  for Pioneer Cash Reserves Fund; and    

         o        dividends and capital gains distributions for all Pioneer\
                  mutual funds.

         Yields are calculated in accordance with SEC mandated standard
formulas.

   
         In addition, by using a personal identification number ("PIN"),
shareholders may enter purchases, exchanges and redemptions, access their
account balances and last three transactions and may order a duplicate
statement. See "FactFoneSM" in the Prospectus for more information.

         All performance numbers communicated through FactFoneSM represent past
performance and include the applicable maximum sales charge. A shareholder's
actual yield and total return will vary with changing market conditions. The
value of Class A, Class B and Class C shares (except for Pioneer Cash Reserves
Fund, which seeks to maintain a stable $1.00 share price) will also vary and may
be worth more or less at redemption than their original cost.    

17. FINANCIAL STATEMENTS

   
         The Fund's Annual Report, filed with the SEC on February 24, 1998
(Accession No. 0000078713-98-000004), is incorporated by reference into this
Statement of Additional Information. The financial statements in the Fund's
Annual Report, including the financial highlights, for the period ended December
31, 1997, included or incorporated by reference into the Prospectus and this
Statement of Additional Information, have been audited by Arthur Andersen LLP,
independent public accountants, as indicated in their report with respect to the
financial statements, and are included in reliance upon the authority of Arthur
Andersen LLP as experts in accounting and auditing in giving their report.    


                                       28


<PAGE>


   
                                   APPENDIX A

           DESCRIPTION OF SHORT-TERM DEBT AND CORPORATE BOND RATINGS1

MOODY'S INVESTORS SERVICE, INC ("MOODY'S"). SHORT-TERM PRIME RATING
SYSTEM - TAXABLE DEBT AND DEPOSITS GLOBALLY

Moody's short-term debt ratings are opinions of the ability of issuers to repay
punctually senior debt obligations. These obligations have an original maturity
not exceeding one year, unless explicitly noted.

Moody's employs the following three designations, all judged to be investment
grade, to indicate the relative repayment ability of rated issuers:

PRIME-1: Issuers rated Prime-1 (or supporting institutions) have a superior
ability for repayment of senior short-term debt obligations. Prime-1 repayment
ability will often be evidenced by many of the following characteristics:

         Leading market positions in well-established industries. High rates of
         return on funds employed.
         Conservative capitalization structure with moderate reliance on debt
         and ample asset protection.
         Broad margins in earnings coverage of fixed financial charges and
         high internal cash generation.
         Well-established access to a range of financial markets and assured
         sources of alternate liquidity.

PRIME-2: Issuers rated Prime-2 (or supporting institutions) have a strong
ability for repayment of senior short-term debt obligations. This will normally
be evidenced by many of the characteristics cited above but to a lesser degree.
Earnings trends and coverage ratios, while sound, may be more subject to
variation. Capitalization characteristics, while still appropriate, may be more
affected by external conditions. Ample alternate liquidity is maintained.

PRIME-3: Issuers rated Prime-3 (or supporting institutions) have an acceptable
ability for repayment of senior short-term obligations. The effect of industry
characteristics and market compositions may be more pronounced. Variability in
earnings and profitability may result in changes in the level of debt protection
measurements and may require relatively high financial leverage. Adequate
alternate liquidity is maintained.

NOT PRIME: Issuers rated Not Prime do not fall within any of the Prime rating
categories.

Obligations of a branch of a bank are considered to be domiciled in the country
in which the branch is located. Unless noted as an exception, Moody's rating on
a bank's ability to repay senior obligations extends only to branches located in
countries which carry a Moody's Sovereign Rating for Bank Deposits. Such branch
obligations are rated at the lower of the bank's rating or Moody's Sovereign
Rating for Bank Deposits for the country in which the branch is located.



- --------
1 The ratings indicated herein are believed to be the most recent ratings
available at the date of this Statement of Additional Information for the
securities listed. Ratings are generally given to securities at the time of
issuance. While the rating agencies may from time to time revise such ratings,
they undertake no obligation to do so, and the ratings indicated do not
necessarily represent ratings which will be given to these securities on the
date of the Fund's fiscal year-end.


                                       29


<PAGE>


When the currency in which an obligation is denominated is not the same as the
currency of the country in which the obligation is domiciled, Moody's ratings do
not incorporate an opinion as to whether payment of the obligation will be
affected by actions of the government controlling the currency of denomination.
In addition, risks associated with bilateral conflicts between an investor's
home country and either the issuer's home country or the country where an
issuer's branch is located are not incorporated into Moody's short-term debt
ratings.

If an issuer represents to Moody's that its short-term debt obligations are
supported by the credit of another entity or entities, then the name or names of
such supporting entity or entities are listed within the parenthesis beneath the
name of the issuer, or there is a footnote referring the reader to another page
for the name or names of the supporting entity or entities. In assigning ratings
to such issuers, Moody's evaluates the financial strength of the affiliated
corporations, commercial banks, insurance companies, foreign governments or
other entities, but only as one factor in the total rating assessment.

MOODY'S CORPORATE BOND RATINGS

AAA: Bonds which are rated Aaa are judged to be of the best quality. They carry
the smallest degree of investment risk and are generally referred to as "gilt
edge." Interest payments are protected by a large or by an exceptionally stable
margin and principal is secure. While the various protective elements are likely
to change, such changes as can be visualized are most unlikely to impair the
fundamentally strong position of such issues.

AA: Bonds which are rated Aa are judged to be of high quality by all standards.
Together with the Aaa group they comprise what are generally known as high grade
bonds. They are rated lower than the best bonds because margins of protection
may not be as large as in Aaa securities or fluctuation of protective elements
may be of greater amplitude or there may be other elements present which make
the long term risks appear somewhat larger than in Aaa securities.

A: Bonds which are rated A possess many favorable investment attributes and are
to be considered as upper-medium-grade obligations. Factors giving security to
principal and interest are considered adequate, but elements may be present
which suggest a susceptibility to impairment sometime in the future.

BAA: Bonds which are rated Baa are considered as medium-grade obligations (i.e.,
they are neither highly protected nor poorly secured). Interest payments and
principal security appear adequate for the present but certain protective
elements may be lacking or may be characteristically unreliable over any great
length of time. Such bonds lack outstanding investment characteristics and in
fact have speculative characteristics as well.

BA: Bonds which are rated Ba are judged to have speculative elements; their
future cannot be considered as well assured. Often the protection of interest
and principal payments may be very moderate and thereby not well safeguarded
during both good and bad times over the future. Uncertainty of position
characterizes bonds in this class.

B: Bonds which are rated B generally lack characteristics of the desirable
investment. Assurance of interest and principal payments or of maintenance of
other terms of the contract over any long period of time may be small.

CAA: Bonds which are rated Caa are of poor standing. Such issues may be in
default or there may be present elements of danger with respect to principal or
interest.

                                       30


<PAGE>


CA: Bonds which are rated Ca represent obligations which are speculative in a
high degree. Such issues are often in default or have other marked shortcomings.

C: Bonds which are rated C are the lowest rated class of bonds, and issues so
rated can be regarded as having extremely poor prospects of ever attaining any
real investment standing.

NOTE: Moody's applies numerical modifiers 1, 2 and 3 in each generic rating
classification from Aa through Caa. The modifier 1 indicated that the obligation
ranks in the higher end of its generic rating category; the modifier 2 indicated
a mid-range ranking; and the modifier 3 indicates a ranking in the lower end of
that generic rating category.

STANDARD & POOR'S SHORT-TERM ISSUE CREDIT RATINGS

A-1: A short-term obligation rated A-1 is rated in the highest category by
Standard & Poor's. The obligor's capacity to meet its financial commitment on
the obligation is strong. Within this category, certain obligations are
designated with a plus sign (+). This indicates that the obligor's capacity to
meet its financial commitment on these obligations is extremely strong.

A-2: A short-term obligation rated A-2 is somewhat more susceptible to the
adverse effects of changes in circumstances and economic conditions than
obligations in higher rating categories. However, the obligor's capacity to meet
its financial commitment on the obligation is satisfactory.

A-3: A short-term obligation rated A-3 exhibits adequate protection parameters.
However, adverse economic conditions or changing circumstances are more likely
to lead to a weakened capacity of the obligor to meet its financial commitment
on the obligation.

B: A short-term obligation rated B is regarded as having significant speculative
characteristics. The obligor currently has the capacity to meet its financial
commitment on the obligation; however, it faces major ongoing uncertainties
which could lead to the obligor's inadequate capacity to meet its financial
commitment on the obligation.

C: A short-term obligation rated C is currently vulnerable to nonpayment and is
dependent upon favorable business, financial, and economic conditions for the
obligor to meet its financial commitment on the obligation.

D: A short-term obligation rated D is in payment default. The D rating category
is used when payments on an obligation are not made on the date due even if the
applicable grace period has not expired, unless Standard & Poor's believes that
such payments will be made during such grace period. The D rating also will be
used upon the filing of a bankruptcy petition or the taking of a similar action
if payments on an obligation are jeopardized.

STANDARD & POOR'S CORPORATE BOND RATINGS

AAA: An obligation rated AAA has the highest rating assigned by Standard &
Poor's. The obligor's capacity to meet its financial commitment on the
obligation is extremely strong.

AA: An obligation rated AA differs from the highest-rated obligations only in a
small degree. The obligor's capacity to meet its financial commitment on the
obligation is very strong.


                                       31


<PAGE>


A: An obligation rated A is somewhat more susceptible to the adverse effects of
changes in circumstances and economic conditions than obligations in
higher-rated categories. However, the obligor's capacity to meet its financial
commitment on the obligation is still strong.

BBB: An obligation rated BBB exhibits adequate protection parameters. However,
adverse economic conditions or changing circumstances are more likely to lead to
a weakened capacity of the obligor to meet its financial commitment on the
obligation.

Obligations rated BB, B, CCC, CC, and C are regarded as having significant
speculative characteristics. BB indicates the least degree of speculation and C
the highest. While such obligations will likely have some quality and protective
characteristics, these may be outweighed by large uncertainties or major
exposures to adverse conditions.

BB: An obligation rated BB is less vulnerable to nonpayment than other
speculative issues. However, it faces major ongoing uncertainties or exposure to
adverse business, financial or economic conditions which could lead to the
obligor's capacity to meet its financial commitment on the obligation.

B: An obligation rated B is more vulnerable to nonpayment than obligations rated
BB, but the obligor currently has the capacity to meet its financial commitment
on the obligation. Adverse business, financial, or economic conditions will
likely impair the obligor's capacity or willingness to meet its financial
commitment on the obligation.

CCC: An obligation rated CCC is currently vulnerable to nonpayment and is
dependent upon favorable business, financial and economic conditions for the
obligor to meet its financial commitment on the obligation. In the event of
adverse business, financial or economic conditions, the obligor is not likely to
have the capacity to meet its financial commitment on the obligation.

CC: An obligation rated CC is currently highly vulnerable to nonpayment.

C: The C rating may be used to cover a situation where a bankruptcy petition has
been filed or similar action has been taken, but payments on this obligation are
being continued.

D: An obligation rated D is in payment default. The D rating category is used
when payments on an obligation are not made on the date due even if the
applicable grace period has not expired, unless Standard & Poor's believes that
such payments will be made during such grace period. The D rating also will be
used upon the filing of a bankruptcy petition or the taking of a similar action
if payments are jeopardized.

PLUS (+) OR MINUS (-): The rating from AA to CCC may be modified by the addition
of a plus or minus sign to show relative standing within the major categories.

R: This symbol is attached to the ratings of instruments with significant
noncredit risks. It highlights risks to principal or volatility of expected
returns which are not addressed in the credit rating. Examples include:
obligations linked or indexed to equities, currencies, or commodities;
obligations exposed to severe prepayment risk, such as interest-only or
principal-only mortgage securities; and obligations with unusually risky
interest terms, such as inverse floaters.    


                                       32


<PAGE>


   
                                   APPENDIX B

                             PERFORMANCE STATISTICS
    


                                  PIONEER FUND
                                 CLASS A SHARES


<TABLE>
<CAPTION>
                                             SALES
                INITIAL        OFFERING      CHARGE     SHARES PURCHASED  NET ASSET VALUE PER       INITIAL NET
   DATE        INVESTMENT        PRICE       INCLUDED                            SHARE              ASSET VALUE
   
<S>          <C>             <C>           <C>        <C>               <C>                       <C>

  3/1/28        $10,000          $0.93        5.75%        10,752.688           $0.8800               $9,425
    
</TABLE>


                                 VALUE OF SHARES
                    (Dividends and Capital Gains Reinvested)
<TABLE>
<CAPTION>

   
                       FROM             FROM CAPITAL GAINS              FROM DIVIDENDS
     DATE           INVESTMENT               REINVESTED                   REINVESTED                TOTAL VALUE
     ----           ----------               ----------                   ----------                -----------
<S>               <C>                 <C>                             <C>                         <C>

   12/31/87          $198,710                $7,950,979                   $5,159,386                $13,309,075
   12/31/88          $218,710                $9,400,587                   $6,129,240                $15,748,537
   12/31/89          $250,323               $11,625,179                   $7,556,505                $19,432,007
   12/31/90          $202,042               $10,571,299                   $6,614,591                $17,387,932
   12/31/91          $217,634               $13,443,868                   $7,682,795                $21,344,297
   12/31/92          $231,290               $15,309,350                   $8,705,734                $24,246,374
   12/31/93          $250,000               $17,494,468                   $9,950,971                $27,695,439
   12/31/94          $229,247               $17,627,582                   $9,679,350                $27,536,179
   12/31/95          $261,936               $22,910,584                   $11,700,046               $34,872,566
   12/31/96          $289,140               $27,984,424                   $13,468,985               $41,742,549
   12/31/97          $375,807               $39,392,734                   $18,032,712               $57,801,253
    
</TABLE>



         Past performance does not guarantee future results. Return and share
price fluctuate and your shares when redeemed may be worth more or less than
your original purchase.


                                       33


<PAGE>



                                  PIONEER FUND
                                 CLASS B SHARES


<TABLE>
<CAPTION>
                                             SALES
                INITIAL        OFFERING      CHARGE     SHARES PURCHASED  NET ASSET VALUE PER       INITIAL NET
   DATE        INVESTMENT        PRICE       INCLUDED                            SHARE              ASSET VALUE
<S>          <C>             <C>           <C>        <C>               <C>                       <C>

  7/1/96        $10,000         $26.40          0%           378.788            $26.4000              $10,000
</TABLE>


                                 VALUE OF SHARES
                    (Dividends and Capital Gains Reinvested)

   

<TABLE>
<CAPTION>
                                                                                                     TOTAL VALUE
                     FROM          FROM CAPITAL GAINS          FROM DIVIDENDS       CDSC IF REDEEMED  IF REDEEMED
                     ----          -------------------         --------------       ----------------  -----------
    DATE          INVESTMENT            REINVESTED               REINVESTED                                            CDSC
    ----          ----------            ----------               ----------                                            ----
<S>             <C>              <C>                         <C>                  <C>              <C>               <C> 

  12/31/96         $10,235                 $707                      $49                  $400          $10,591        4.00%
  12/31/97         $13,261                $1704                     $114                  $400          $14,697        4.00%
    
</TABLE>


         Past performance does not guarantee future results. Return and share
price fluctuate and your shares when redeemed may be worth more or less than
your original purchase.


                                       34


<PAGE>



                                  PIONEER FUND
                                 CLASS C SHARES

<TABLE>
<CAPTION>
                                             SALES
                INITIAL        OFFERING      CHARGE     SHARES PURCHASED  NET ASSET VALUE PER       INITIAL NET
   DATE        INVESTMENT        PRICE       INCLUDED                            SHARE              ASSET VALUE
<S>          <C>             <C>           <C>        <C>               <C>                       <C>

  7/1/96        $10,000         $26.40          0%           378.788            $26.4000              $10,000
</TABLE>

                                 VALUE OF SHARES
                    (Dividends and Capital Gains Reinvested)


<TABLE>
<CAPTION>
                                                                                                      TOTAL VALUE
   
                      FROM          FROM CAPITAL GAINS          FROM DIVIDENDS          CSDC IF       IF REDEEMED
                      ----          -------------------         --------------          --------      -----------
     DATE         INVESTMENT             REINVESTED               REINVESTED            REDEEMED                       CDSC
     ----         -----------            ----------               ----------            --------                       ----
<S>             <C>               <C>                         <C>                     <C>           <C>              <C>

   12/31/96         $10,129                 $706                      $39                 $100          $10,774       1.00%
   12/31/97         $13,129                $1,702                     $94                  $0           $14,925       0.00%
    
</TABLE>


         Past performance does not guarantee future results. Return and share
price fluctuate and your shares when redeemed may be worth more or less than
your original purchase.


                                       35


<PAGE>


   
                             COMPARATIVE PERFORMANCE
                               INDEX DESCRIPTIONS


The following securities indices are well known, unmanaged measures of market
performance. Advertisements and sales literature for the Fund may refer to these
indices or may present comparisons between the performance of the Fund and one
or more of the indices. Other indices may also be used, if appropriate. The
indices are not available for direct investment. The data presented are not
meant to be indicative of the performance of the Fund, do not reflect past
performance and do not guarantee future results.

S&P 500
This index is a readily available, carefully constructed, market value weighted
benchmark of common stock performance. Currently, the S&P 500 includes 500 of
the largest stocks (in terms of stock market value) in the U.S.

DOW JONES INDUSTRIAL AVERAGE
This is a total return index based on the performance of stocks of 30 blue chip
companies widely held by individuals and institutional investors. The 30 stocks
represent about a fifth of the $8 trillion-plus market value of all U.S. stocks
and about a fourth of the value of stocks listed on the New York Stock Exchange
(NYSE).

U.S. SMALL STOCK INDEX
This index is a market value weighted index of the ninth and tenth deciles of
the NYSE, plus stocks listed on the American Stock Exchange and over the counter
with the same or less capitalization as the upper bound of the NYSE ninth
decile.

U.S. INFLATION
THE CONSUMER PRICE INDEX FOR ALL URBAN CONSUMERS (CPI-U), not seasonally
adjusted, is used to measure inflation, which is the rate of change of consumer
goods prices. Unfortunately, the inflation rate as derived by the CPI is not
measured over the same period as the other asset returns. All of the security
returns are measured from one month-end to the next month-end. CPI commodity
prices are collected during the month. Thus, measured inflation rates lag the
other series by about one-half month. Prior to January 1978, the CPI (as
compared with CPI-U) was used. Both inflation measures are constructed by the
U.S. Department of Labor, Bureau of Labor Statistics, Washington, DC.

S&P/BARRA INDEXES
The S&P/BARRA GROWTH AND VALUE INDEXES are constructed by dividing the stocks in
the S&P 500 according to price-to-book ratios. The GROWTH INDEX contains stocks
with higher price-to-book ratios, and the VALUE INDEX contains stocks with lower
price-to-book ratios. Both indexes are market capitalization weighted.

MERRILL LYNCH MICRO-CAP INDEX
The MERRILL LYNCH MICRO-CAP INDEX represents the performance of 2,036 stocks
ranging in market capitalization from $50 million to $220 million. Index returns
are calculated monthly.


                                       36


<PAGE>


LONG-TERM U.S. GOVERNMENT BONDS
The total returns on long-term government bonds after 1977 are constructed with
data from The Wall Street Journal and are calculated as the change in the flat
price or and-interest price. From 1926 to 1976, data are obtained from the
government bond file at the Center for Research in Security Prices (CRSP),
Graduate School of Business, University of Chicago. Each year, a one-bond
portfolio with a term of approximately 20 years and a reasonably current coupon
was used and whose returns did not reflect potential tax benefits, impaired
negotiability or special redemption or call privileges. Where callable bonds had
to be used, the term of the bond was assumed to be a simple average of the
maturity and first call dates minus the current date. The bond was "held" for
the calendar year and returns were computed.

INTERMEDIATE-TERM U.S. GOVERNMENT BONDS
Total returns of intermediate-term government bonds after 1987 are calculated
from The Wall Street Journal prices, using the change in flat price. Returns
from 1934 to 1986 are obtained from the CRSP government bond file.

Each year, one-bond portfolios are formed, the bond chosen is the shortest
noncallable bond with a maturity not less than five years, and this bond is
"held" for the calendar year. Monthly returns are computed. (Bonds with impaired
negotiability or special redemption privileges are omitted, as are partially or
fully tax-exempt bonds starting with 1943.) From 1934 to 1942, almost all bonds
with maturities near five years were partially or fully tax-exempt and were
selected using the rules described above. Personal tax rates were generally low
in that period, so that yields on tax-exempt bonds were similar to yields on
taxable bonds. From 1926 to 1933, there are few bonds suitable for construction
of a series with a five-year maturity. For this period, five-year bond yield
estimates are used.

MORGAN STANLEY CAPITAL INTERNATIONAL ("MSCI")
MSCI's international indices are based on the share prices of approximately
1,700 companies listed on stock exchanges in the 22 countries that make up the
MSCI World Index. MSCI's emerging market indices are comprised of approximately
1000 stocks from 26 countries.

Countries in the MSCI EAFE INDEX are: Australia, Austria, Belgium, Denmark,
Finland, France, Germany, Hong Kong, Ireland, Italy, Japan, Malaysia,
Netherlands, New Zealand, Norway, Singapore, Spain, Sweden, Switzerland and
United Kingdom.

Countries in the MSCI EMERGING MARKETS FREE INDEX are: Argentina, Brazil, Chile,
China Free, Czech Republic, Colombia, Greece, Hungary, India, Indonesia Free,
Israel, Jordan, Korea (at 50%), Malaysia Free, Mexico Free, Pakistan, Peru,
Philippines Free, Poland, Portugal, South Africa, Sri Lanka, Taiwan (at 50%),
Thailand Free, Turkey and Venezuela.

6-MONTH CDS
Data sources include the Federal Reserve Bulletin and The Wall Street Journal.

LONG-TERM U.S. CORPORATE BONDS
Since 1969, corporate bond total returns are represented by the Salomon Brothers
Long-Term High-Grade Corporate Bond Index. As most large corporate bond
transactions take place over the counter, a major dealer is the natural source
of these data. The index includes nearly all Aaa- and Aa-rated bonds with at
least 10 years to maturity. If a bond is downgraded during a particular month,
its return for the month is included in the index before removing the bond from
future portfolios.

From 1926 to 1968 the total returns were calculated by summing the capital
appreciation returns and the income returns. For the period 1946 to 1968,
Ibbotson and Sinquefield backdated the Salomon Brothers'


                                       37


<PAGE>


index, using Salomon Brothers' monthly yield data with a methodology
similar to that used by Salomon Brothers for 1969 to 1995. Capital appreciation
returns were calculated from yields assuming (at the beginning of each monthly
holding period) a 20-year maturity, a bond price equal to par, and a coupon
equal to the beginning-of-period yield. For the period 1926 to 1945, Standard &
Poor's monthly high-grade corporate composite yield data were used, assuming a
4% coupon and a 20-year maturity. The conventional present-value formula for
bond price for the beginning and end-of-month prices was used. (This formula is
presented in Ross, Stephen A., and Westerfield, Randolph W., Corporate Finance,
Times Mirror/Mosby, St. Louis, 1990, p. 97 ["Level-Coupon Bonds"].) The monthly
income return was assumed to be one-twelfth the coupon.

U.S. (30-DAY) TREASURY BILLS
For the U.S. TREASURY BILL INDEX, data from The Wall Street Journal are used
after 1977; the CRSP government bond file is the source until 1976. Each month a
one-bill portfolio containing the shortest-term bill having not less than one
month to maturity is constructed. (The bill's original term to maturity is not
relevant.) To measure holding period returns for the one-bill portfolio, the
bill is priced as of the last trading day of the previous month-end and as of
the last trading day of the current month.

NATIONAL ASSOCIATION OF REAL ESTATE INVESTMENT TRUSTS ("NAREIT")EQUITY REIT
INDEX
All of the data are based upon the last closing price of the month for all
tax-qualified REITs listed on the NYSE, AMEX and NASDAQ. The data are
market-value-weighted. Prior to 1987 REITs were added to the index the January
following their listing. Since 1987 newly formed or listed REITs are added to
the total shares outstanding figure in the month that the shares are issued.
Only common shares issued by the REIT are included in the index. The total
return calculation is based upon the weighting at the beginning of the period.
Only those REITs listed for the entire period are used in the total return
calculation. Dividends are included in the month based upon their payment date.
There is no smoothing of income. Liquidating dividends, whether full or partial,
are treated as income.

RUSSELL U.S. EQUITY INDEXES
The RUSSELL 3000(R) INDEX (the "Russell 3000") is comprised of the 3,000 largest
U.S. companies as determined by market capitalization representing approximately
98% of the U.S. equity market. The average market capitalization is
approximately $2.8 billion. The RUSSELL 2500TM INDEX measures performance of the
2,500 smallest companies in the Russell 3000. The average market capitalization
is approximately $733.4 million, and the largest company in the index has an
approximate market capitalization of $2.9 billion. The RUSSELL 2000(R) INDEX
measures performance of the 2,000 smallest stocks in the Russell 3000; the
largest company in the index has a market capitalization of approximately $1.1
billion. The RUSSELL 1000(R) INDEX (the "Russell 1000") measures the performance
of the 1,000 largest companies in the Russell 3000. The average market
capitalization is approximately $7.6 billion. The smallest company in the index
has an approximate market capitalization of $1.1 billion. The RUSSELL MIDCAPTM
Index measures performance of the 800 smallest companies in the Russell 1000.
The largest company in the index has an approximate market capitalization of
$8.0 billion.

The Russell indexes are reconstituted annually as of July 1, based on May 31
market capitalization rankings.

WILSHIRE REAL ESTATE SECURITIES INDEX
The WILSHIRE REAL ESTATE SECURITIES INDEX is a market capitalization weighted
index of 120 publicly traded real estate securities, such as REITs, real estate
operating companies ("REOCs") and partnerships.


                                       38


<PAGE>


The index contains performance data on five major categories of property:
office, retail, industrial, apartment and miscellaneous. The companies in the
index are 91.66% equity and hybrid REITs and 8.33% REOCs.

STANDARD & POOR'S MIDCAP 400 INDEX
The S&P 400 is a market-capitalization-weighted index. The performance data for
the index were calculated by taking the stocks presently in the index and
tracking them backwards in time as long as there were prices reported. No
attempt was made to determine what stocks "might have been" in the S&P 400 five
or ten years ago had it existed. Dividends are reinvested on a monthly basis
prior to June 30, 1991, and are reinvested daily thereafter.

LIPPER BALANCED FUNDS INDEX
This index represents equally weighted performance, adjusted for capital gains
distributions and income dividends, of approximately 30 of the largest funds
with a primary objective of conserving principal by maintaining at all times a
balanced portfolio of stocks and bonds. Typically, the stock/bond ratio ranges
around 60%/40%.

BANK SAVINGS ACCOUNT
Data sources include the U.S. League of Savings Institutions Sourcebook; average
annual yield on savings deposits in FSLIC [FDIC] insured savings institutions
for the years 1963 to 1987; and The Wall Street Journal thereafter.

Sources: Ibbotson Associates, Towers Data Systems, Lipper Analytical Services,
Inc., Merrill Lynch and PGI    


                                       39


<PAGE>


<TABLE>
<CAPTION>

   
                  PERFORMANCE STATISTICS - TOTAL RETURN PERCENT

                               DOW                                        S&P/          S&P/
                 S&P          JONES        U.S. SMALL                    BARRA          BARRA        MERRILL LYNCH
                 500        INDUSTRIAL        STOCK         U.S.          500            500           MICRO-CAP
                             AVERAGE          INDEX       INFLATION      GROWTH         VALUE            INDEX
    
- ----------------------------------------------------------------------------------------------------------------------
   
<S>           <C>            <C>            <C>           <C>           <C>            <C>              <C>

Dec 1925         N/A           N/A             N/A           N/A          N/A            N/A              N/A
Dec 1926        11.62          N/A            0.28          -1.49         N/A            N/A              N/A
Dec 1927        37.49          N/A            22.10         -2.08         N/A            N/A              N/A
Dec 1928        43.61          55.38          39.69         -0.97         N/A            N/A              N/A
Dec 1929        -8.42         -13.64         -51.36          0.20         N/A            N/A              N/A
Dec 1930       -24.90         -30.22         -38.15         -6.03         N/A            N/A              N/A
Dec 1931       -43.34         -49.02         -49.75         -9.52         N/A            N/A              N/A
Dec 1932        -8.19         -16.88          -5.39        -10.30         N/A            N/A              N/A
Dec 1933        53.99          73.72         142.87          0.51         N/A            N/A              N/A
Dec 1934        -1.44          8.08           24.22          2.03         N/A            N/A              N/A
Dec 1935        47.67         43.77           40.19          2.99         N/A            N/A              N/A
Dec 1936        33.92         30.23           64.80          1.21         N/A            N/A              N/A
Dec 1937       -35.03        -28.88          -58.01          3.10         N/A            N/A              N/A
Dec 1938        31.12         33.16           32.80         -2.78         N/A            N/A              N/A
Dec 1939        -0.41          1.31            0.35         -0.48         N/A            N/A              N/A
Dec 1940        -9.78         -7.96           -5.16          0.96         N/A            N/A              N/A
Dec 1941       -11.59         -9.88           -9.00          9.72         N/A            N/A              N/A
Dec 1942        20.34         14.13           44.51          9.29         N/A            N/A              N/A
Dec 1943        25.90         19.06           88.37          3.16         N/A            N/A              N/A
Dec 1944        19.75         17.19           53.72          2.11         N/A            N/A              N/A
Dec 1945        36.44         31.60           73.61          2.25         N/A            N/A              N/A
Dec 1946        -8.07         -4.40          -11.63         18.16         N/A            N/A              N/A
Dec 1947         5.71          7.61            0.92          9.01         N/A            N/A              N/A
Dec 1948         5.50          4.27           -2.11          2.71         N/A            N/A              N/A
Dec 1949        18.79         20.92           19.75         -1.80         N/A            N/A              N/A
Dec 1950        31.71         26.40           38.75          5.79         N/A            N/A              N/A
Dec 1951        24.02         21.77            7.80          5.87         N/A            N/A              N/A
Dec 1952        18.37         14.58            3.03          0.88         N/A            N/A              N/A
Dec 1953        -0.99          2.02           -6.49          0.62         N/A            N/A              N/A
Dec 1954        52.62         51.25           60.58         -0.50         N/A            N/A              N/A
Dec 1955        31.56         26.58           20.44          0.37         N/A            N/A              N/A
Dec 1956         6.56          7.10            4.28          2.86         N/A            N/A              N/A
Dec 1957       -10.78         -8.63          -14.57          3.02         N/A            N/A              N/A
Dec 1958        43.36         39.31           64.89          1.76         N/A            N/A              N/A
Dec 1959        11.96         20.21           16.40          1.50         N/A            N/A              N/A
Dec 1960         0.47         -6.14           -3.29          1.48         N/A            N/A              N/A
Dec 1961        26.89         22.60           32.09          0.67         N/A            N/A              N/A
Dec 1962        -8.73         -7.43          -11.90          1.22         N/A            N/A              N/A
Dec 1963        22.80         20.83           23.57          1.65         N/A            N/A              N/A
    
</TABLE>


                                       40


<PAGE>

<TABLE>
<CAPTION>

   
                  PERFORMANCE STATISTICS - TOTAL RETURN PERCENT

                               DOW                                        S&P/          S&P/
                 S&P          JONES        U.S. SMALL                  BARRA 500        BARRA        MERRILL LYNCH
                 500        INDUSTRIAL        STOCK         U.S.         GROWTH          500           MICRO-CAP
                             AVERAGE          INDEX       INFLATION                     VALUE            INDEX
    
- ----------------------------------------------------------------------------------------------------------------------
<S>           <C>           <C>             <C>           <C>           <C>            <C>              <C>

   
Dec 1964        16.48         18.85           23.52         1.19          N/A            N/A              N/A
Dec 1965        12.45         14.39           41.75         1.92          N/A            N/A              N/A
Dec 1966       -10.06        -15.78           -7.01         3.35          N/A            N/A              N/A
Dec 1967        23.98         19.16           83.57         3.04          N/A            N/A              N/A
Dec 1968        11.06          7.93           35.97         4.72          N/A            N/A              N/A
Dec 1969        -8.50        -11.78          -25.05         6.11          N/A            N/A              N/A
Dec 1970         4.01          9.21          -17.43         5.49          N/A            N/A              N/A
Dec 1971        14.31          9.83           16.50         3.36          N/A            N/A              N/A
Dec 1972        18.98         18.48            4.43         3.41          N/A            N/A              N/A
Dec 1973       -14.66        -13.28          -30.90         8.80          N/A            N/A              N/A
Dec 1974       -26.47        -23.58          -19.95        12.20          N/A            N/A              N/A
Dec 1975        37.20         44.75           52.82         7.01         31.72          43.38             N/A
Dec 1976        23.84         22.82           57.38         4.81         13.84          34.93             N/A
Dec 1977        -7.18        -12.84           25.38         6.77        -11.82          -2.57             N/A
Dec 1978         6.56          2.79           23.46         9.03          6.78           6.16            27.76
Dec 1979        18.44         10.55           43.46        13.31         15.72          21.16            43.18
Dec 1980        32.42         22.17           39.88        12.40         39.40          23.59            32.32
Dec 1981        -4.91         -3.57           13.88         8.94         -9.81           0.02             9.18
Dec 1982        21.41         27.11           28.01         3.87         22.03          21.04            33.62
Dec 1983        22.51         25.97           39.67         3.80         16.24          28.89            42.44
Dec 1984         6.27          1.31           -6.67         3.95          2.33          10.52           -14.97
Dec 1985        32.16         33.55           24.66         3.77         33.31          29.68            22.89
Dec 1986        18.47         27.10            6.85         1.13         14.50          21.67             3.45
Dec 1987         5.23          5.48           -9.30         4.41          6.50           3.68           -13.84
Dec 1988        16.81         16.14           22.87         4.42         11.95          21.67            22.76
Dec 1989        31.49         32.19           10.18         4.65         36.40          26.13             8.06
Dec 1990        -3.17         -0.56          -21.56         6.11          0.20          -6.85           -29.55
Dec 1991        30.55         24.19           44.63         3.06         38.37          22.56            57.44
Dec 1992         7.67          7.41           23.35         2.90          5.07          10.53            36.62
Dec 1993         9.99         16.94           20.98         2.75          1.68          18.60            31.32
Dec 1994         1.31          5.06            3.11         2.67          3.13          -0.64             1.81
Dec 1995        37.43         36.84           34.46         2.54         38.13          36.99            30.70
Dec 1996        23.07         28.84           17.62         3.32         23.96          21.99            13.88
Dec 1997        33.36         24.88           22.78         1.92         36.52          29.98            24.61
    
</TABLE>


                                       41


<PAGE>


<TABLE>
<CAPTION>

   
                  PERFORMANCE STATISTICS - TOTAL RETURN PERCENT

                  LONG-       INTERMEDIATE-      MSCI                      LONG-
                  TERM          TERM U.S.        EAFE         6-         TERM U.S.          U.S.
               U.S. GOV'T      GOVERNMENT       (Net of      MONTH       CORPORATE         T-BILL
                  BONDS           BONDS         Taxes)        CDS          BONDS          (30-Day)
    
- ------------------------------------------------------------------------------------------------------
<S>             <C>             <C>             <C>         <C>           <C>             <C>

   
Dec 1925           N/A             N/A            N/A         N/A           N/A             N/A
Dec 1926          7.77            5.38            N/A         N/A           7.37            3.27
Dec 1927          8.93            4.52            N/A         N/A           7.44            3.12
Dec 1928          0.10            0.92            N/A         N/A           2.84            3.56
Dec 1929          3.42            6.01            N/A         N/A           3.27            4.75
Dec 1930          4.66            6.72            N/A         N/A           7.98            2.41
Dec 1931         -5.31           -2.32            N/A         N/A          -1.85            1.07
Dec 1932         16.84            8.81            N/A         N/A          10.82            0.96
Dec 1933         -0.07            1.83            N/A         N/A          10.38            0.30
Dec 1934         10.03            9.00            N/A         N/A          13.84            0.16
Dec 1935          4.98            7.01            N/A         N/A           9.61            0.17
Dec 1936          7.52            3.06            N/A         N/A           6.74            0.18
Dec 1937          0.23            1.56            N/A         N/A           2.75            0.31
Dec 1938          5.53            6.23            N/A         N/A           6.13           -0.02
Dec 1939          5.94            4.52            N/A         N/A           3.97            0.02
Dec 1940          6.09            2.96            N/A         N/A           3.39            0.00
Dec 1941          0.93            0.50            N/A         N/A           2.73            0.06
Dec 1942          3.22            1.94            N/A         N/A           2.60            0.27
Dec 1943          2.08            2.81            N/A         N/A           2.83            0.35
Dec 1944          2.81            1.80            N/A         N/A           4.73            0.33
Dec 1945         10.73            2.22            N/A         N/A           4.08            0.33
Dec 1946         -0.10            1.00            N/A         N/A           1.72            0.35
Dec 1947         -2.62            0.91            N/A         N/A          -2.34            0.50
Dec 1948          3.40            1.85            N/A         N/A           4.14            0.81
Dec 1949          6.45            2.32            N/A         N/A           3.31            1.10
Dec 1950          0.06            0.70            N/A         N/A           2.12            1.20
Dec 1951         -3.93            0.36            N/A         N/A          -2.69            1.49
Dec 1952          1.16            1.63            N/A         N/A           3.52            1.66
Dec 1953          3.64            3.23            N/A         N/A           3.41            1.82
Dec 1954          7.19            2.68            N/A         N/A           5.39            0.86
Dec 1955         -1.29           -0.65            N/A         N/A           0.48            1.57
Dec 1956         -5.59           -0.42            N/A         N/A          -6.81            2.46
Dec 1957          7.46            7.84            N/A         N/A           8.71            3.14
Dec 1958         -6.09           -1.29            N/A         N/A          -2.22            1.54
Dec 1959         -2.26           -0.39            N/A         N/A          -0.97            2.95
Dec 1960         13.78           11.76            N/A         N/A           9.07            2.66
    
</TABLE>


                                       42


<PAGE>


<TABLE>
<CAPTION>
   
                  PERFORMANCE STATISTICS - TOTAL RETURN PERCENT

                  LONG-       INTERMEDIATE-      MSCI                      LONG-
                  TERM          TERM U.S.        EAFE         6-         TERM U.S.          U.S.
               U.S. GOV'T      GOVERNMENT       (Net of      MONTH       CORPORATE         T-BILL
                  BONDS           BONDS         Taxes)        CDS          BONDS          (30-Day)
    
- ------------------------------------------------------------------------------------------------------
<S>             <C>             <C>             <C>         <C>           <C>             <C>

   
Dec 1961          0.97            1.85            N/A         N/A           4.82            2.13
Dec 1962          6.89            5.56            N/A         N/A           7.95            2.73
Dec 1963          1.21            1.64            N/A         N/A           2.19            3.12
Dec 1964          3.51            4.04            N/A        4.17           4.77            3.54
Dec 1965          0.71            1.02            N/A        4.68          -0.46            3.93
Dec 1966          3.65            4.69            N/A        5.76           0.20            4.76
Dec 1967         -9.18            1.01            N/A        5.47          -4.95            4.21
Dec 1968         -0.26            4.54            N/A        6.45           2.57            5.21
Dec 1969         -5.07           -0.74            N/A        8.70          -8.09            6.58
Dec 1970         12.11           16.86          -11.66       7.06          18.37            6.52
Dec 1971         13.23            8.72           29.59       5.36          11.01            4.39
Dec 1972          5.69            5.16           36.35       5.39           7.26            3.84
Dec 1973         -1.11            4.61          -14.92       8.60           1.14            6.93
Dec 1974          4.35            5.69          -23.16      10.20          -3.06            8.00
Dec 1975          9.20            7.83           35.39       6.51          14.64            5.80
Dec 1976         16.75           12.87            2.54       5.22          18.65            5.08
Dec 1977         -0.69            1.41           18.06       6.11           1.71            5.12
Dec 1978         -1.18            3.49           32.62      10.21          -0.07            7.18
Dec 1979         -1.23            4.09            4.75      11.90          -4.18           10.38
Dec 1980         -3.95            3.91           22.58      12.33          -2.76           11.24
Dec 1981          1.86            9.45           -2.28      15.50          -1.24           14.71
Dec 1982         40.36           29.10           -1.86      12.18          42.56           10.54
Dec 1983          0.65            7.41           23.69       9.65           6.26            8.80
Dec 1984         15.48           14.02            7.38      10.65          16.86            9.85
Dec 1985         30.97           20.33           56.16       7.82          30.09            7.72
Dec 1986         24.53           15.14           69.44       6.30          19.85            6.16
Dec 1987         -2.71            2.90           24.63       6.59          -0.27            5.47
Dec 1988          9.67            6.10           28.27       8.15          10.70            6.35
Dec 1989         18.11           13.29           10.54       8.27          16.23            8.37
Dec 1990          6.18            9.73          -23.45       7.85           6.78            7.81
Dec 1991         19.30           15.46           12.13       4.95          19.89            5.60
Dec 1992          8.05            7.19          -12.17       3.27           9.39            3.51
Dec 1993         18.24           11.24           32.56       2.88          13.19            2.90
Dec 1994         -7.77           -5.14            7.78       5.40          -5.76            3.90
Dec 1995         31.67           16.80           11.21       5.21          27.20            5.60
Dec 1996         -0.93            2.10            6.05       5.21           1.40            5.21
Dec 1997         15.85            8.38            1.78       5.71          12.95            5.26
    
</TABLE>


                                       43


<PAGE>


<TABLE>
<CAPTION>

   
                  PERFORMANCE STATISTICS - TOTAL RETURN PERCENT

                 NAREIT                                                   LIPPER           MSCI
                 EQUITY       RUSSELL       WILSHIRE                     BALANCED        EMERGING           BANK
                  REIT         2000       REAL ESTATE        S&P           FUND          MARKETS          SAVINGS
                 INDEX         INDEX       SECURITIES        400           INDEX        FREE INDEX        ACCOUNT
    
- -----------------------------------------------------------------------------------------------------------------------
   
<S>             <C>           <C>           <C>            <C>            <C>            <C>              <C>

Dec 1925          N/A           N/A           N/A            N/A            N/A            N/A              N/A
Dec 1926          N/A           N/A           N/A            N/A            N/A            N/A              N/A
Dec 1927          N/A           N/A           N/A            N/A            N/A            N/A              N/A
Dec 1928          N/A           N/A           N/A            N/A            N/A            N/A              N/A
Dec 1929          N/A           N/A           N/A            N/A            N/A            N/A              N/A
Dec 1930          N/A           N/A           N/A            N/A            N/A            N/A              5.30
Dec 1931          N/A           N/A           N/A            N/A            N/A            N/A              5.10
Dec 1932          N/A           N/A           N/A            N/A            N/A            N/A              4.10
Dec 1933          N/A           N/A           N/A            N/A            N/A            N/A              3.40
Dec 1934          N/A           N/A           N/A            N/A            N/A            N/A              3.50
Dec 1935          N/A           N/A           N/A            N/A            N/A            N/A              3.10
Dec 1936          N/A           N/A           N/A            N/A            N/A            N/A              3.20
Dec 1937          N/A           N/A           N/A            N/A            N/A            N/A              3.50
Dec 1938          N/A           N/A           N/A            N/A            N/A            N/A              3.50
Dec 1939          N/A           N/A           N/A            N/A            N/A            N/A              3.40
Dec 1940          N/A           N/A           N/A            N/A            N/A            N/A              3.30
Dec 1941          N/A           N/A           N/A            N/A            N/A            N/A              3.10
Dec 1942          N/A           N/A           N/A            N/A            N/A            N/A              3.00
Dec 1943          N/A           N/A           N/A            N/A            N/A            N/A              2.90
Dec 1944          N/A           N/A           N/A            N/A            N/A            N/A              2.80
Dec 1945          N/A           N/A           N/A            N/A            N/A            N/A              2.50
Dec 1946          N/A           N/A           N/A            N/A            N/A            N/A              2.20
Dec 1947          N/A           N/A           N/A            N/A            N/A            N/A              2.30
Dec 1948          N/A           N/A           N/A            N/A            N/A            N/A              2.30
Dec 1949          N/A           N/A           N/A            N/A            N/A            N/A              2.40
Dec 1950          N/A           N/A           N/A            N/A            N/A            N/A              2.50
Dec 1951          N/A           N/A           N/A            N/A            N/A            N/A              2.60
Dec 1952          N/A           N/A           N/A            N/A            N/A            N/A              2.70
Dec 1953          N/A           N/A           N/A            N/A            N/A            N/A              2.80
Dec 1954          N/A           N/A           N/A            N/A            N/A            N/A              2.90
Dec 1955          N/A           N/A           N/A            N/A            N/A            N/A              2.90
Dec 1956          N/A           N/A           N/A            N/A            N/A            N/A              3.00
Dec 1957          N/A           N/A           N/A            N/A            N/A            N/A              3.30
Dec 1958          N/A           N/A           N/A            N/A            N/A            N/A              3.38
Dec 1959          N/A           N/A           N/A            N/A            N/A            N/A              3.53
Dec 1960          N/A           N/A           N/A            N/A            5.77           N/A              3.86
Dec 1961          N/A           N/A           N/A            N/A           20.59           N/A              3.90
    
</TABLE>


                                       44


<PAGE>


<TABLE>
<CAPTION>

   
                  PERFORMANCE STATISTICS - TOTAL RETURN PERCENT

                 NAREIT                                                   LIPPER           MSCI
                 EQUITY       RUSSELL       WILSHIRE                     BALANCED        EMERGING           BANK
                  REIT         2000       REAL ESTATE        S&P           FUND          MARKETS          SAVINGS
                 INDEX         INDEX       SECURITIES        400           INDEX        FREE INDEX        ACCOUNT
    
- -----------------------------------------------------------------------------------------------------------------------
   
<S>             <C>           <C>           <C>            <C>           <C>             <C>              <C>

Dec 1962          N/A           N/A           N/A            N/A           -6.80           N/A              4.08
Dec 1963          N/A           N/A           N/A            N/A           13.10           N/A              4.17
Dec 1964          N/A           N/A           N/A            N/A           12.36           N/A              4.19
Dec 1965          N/A           N/A           N/A            N/A            9.80           N/A              4.23
Dec 1966          N/A           N/A           N/A            N/A           -5.86           N/A              4.45
Dec 1967          N/A           N/A           N/A            N/A           15.09           N/A              4.67
Dec 1968          N/A           N/A           N/A            N/A           13.97           N/A              4.68
Dec 1969          N/A           N/A           N/A            N/A           -9.01           N/A              4.80
Dec 1970          N/A           N/A           N/A            N/A            5.62           N/A              5.14
Dec 1971          N/A           N/A           N/A            N/A           13.90           N/A              5.30
Dec 1972          8.01          N/A           N/A            N/A           11.13           N/A              5.37
Dec 1973        -15.52          N/A           N/A            N/A          -12.24           N/A              5.51
Dec 1974        -21.40          N/A           N/A            N/A          -18.71           N/A              5.96
Dec 1975         19.30          N/A           N/A            N/A           27.10           N/A              6.21
Dec 1976         47.59          N/A           N/A            N/A           26.03           N/A              6.23
Dec 1977         22.42          N/A           N/A            N/A           -0.72           N/A              6.39
Dec 1978         10.34          N/A          13.04           N/A            4.80           N/A              6.56
Dec 1979         35.86         43.09         70.81           N/A           14.67           N/A              7.29
Dec 1980         24.37         38.58         22.08           N/A           19.70           N/A              8.78
Dec 1981          6.00          2.03          7.18           N/A            1.86           N/A             10.71
Dec 1982         21.60         24.95         24.47          22.68          30.63           N/A             11.19
Dec 1983         30.64         29.13         27.61          26.10          17.44           N/A              9.71
Dec 1984         20.93         -7.30         20.64           1.18           7.46           N/A              9.92
Dec 1985         19.10         31.05         22.20          35.58          29.83           N/A              9.02
Dec 1986         19.16          5.68         20.30          16.21          18.43           N/A              7.84
Dec 1987         -3.64         -8.77         -7.86          -2.03           4.13           N/A              6.92
Dec 1988         13.49         24.89         24.18          20.87          11.18          40.43             7.20
Dec 1989          8.84         16.24          2.37          35.54          19.70          64.96             7.91
Dec 1990        -15.35        -19.51        -33.46          -5.12           0.66         -10.55             7.80
Dec 1991         35.70         46.05         20.03          50.10          25.83          59.91             4.61
Dec 1992         14.59         18.41          7.36          11.91           7.46          11.40             2.89
Dec 1993         19.65         18.91         15.24          13.96          11.95          74.83             2.73
Dec 1994          3.17         -1.82          1.64          -3.57          -2.05          -7.32             4.96
Dec 1995         15.27         28.44         13.65          30.94          24.89          -5.21             5.24
Dec 1996         35.26         16.53         36.87          19.20          13.01           6.03             4.95
Dec 1997         20.29         22.36         19.80          32.26          20.05          -11.59            5.17
    
</TABLE>


                                       45


<PAGE>


   
                                   APPENDIX C

                            OTHER PIONEER INFORMATION

The Pioneer group of mutual funds was established in 1928 with the creation of
Pioneer Fund. Pioneer is one of the oldest and most experienced money managers
in the United States.

As of December 31, 1997, PMC employed a professional investment staff of 58,
with a combined average of 12 years' experience in the financial services
industry.

Total assets of all Pioneer mutual funds at December 31, 1997, were
approximately $19.8 billion representing 1,177,148 shareholder accounts, 791,468
non-retirement accounts and 385,680 retirement accounts.

g:\edgar\sai\current\pf498sai.doc    


                                       46


<PAGE>

                                                                                


                                     PART C

                                OTHER INFORMATION


Item 24.  Financial Statements and Exhibits

         (a) Financial Statements:

   
             The financial highlights of the Registrant for the fiscal year
             ended December 31, 1997 are included in Part A of the Registration
             Statement and the financial statements of the Registrant for the
             fiscal year ended December 31, 1997 are part of the 1997 Annual
             Report to Shareholders (filed electronically on February 24, 1998;
             File No. 811-07613; Accession No. 0000078713-98-000004) which is
             incorporated by reference into Part B of the Registration
             Statement.    

         (b) Exhibits:

   
             1.       Agreement and Declaration of Trust.1

             2.       By-Laws.1

             3.       None.

             4.1      Specimen Class A Share Certificate.2

             4.2      Specimen Class B Share Certificate.2

             4.3      Specimen Class C Share Certificate.2

             5.       Form of Management Contract between the Registrant and
                      Pioneering Management Corporation.1

             6.1      Form of Underwriting Agreement between the Registrant and
                      Pioneer Funds Distributor, Inc.1

             6.2      Form of Dealer Sales Agreement.1

             7.       None.

             8.       Form of Custodian Agreement between the Registrant and
                      Brown Brothers Harriman & Co.1

             9.1      Form of Investment Company Service Agreement between the
                      Registrant and Pioneering Services Corporation.1


             9.2      Form of Agreement and Plan of Reorganization of the
                      Registrant.3

             10.      None.

             11.      Consent of Independent Public Accountants.4

             12.      None.

             13.      None.

             14.      None.

             15.1     Class A Distribution Plan.1

             15.2     Class B Distribution Plan.1

             15.3     Class C Distribution Plan.1


                                      C-1


<PAGE>


             16.      None.

             17.      Financial Data Schedules.4

             18.      Multiple Class Plan for Class A, Class B, Class C and
                      Class Y shares pursuant to Rule 18f-3.1

             19.       Powers of Attorney.1

             19.1      Power of Attorney for Mary K. Bush4

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

     1Previously filed. Incorporated herein by reference from the exhibits filed
with Post-Effective Amendment No. 62 to the Registrant's Registration Statement
(File No. 2-25980) as filed with the Securities and Exchange Commission (the
"SEC") on April 30, 1996 (Accession No. 0000078713-96-000012).

     2Previously filed. Incorporated herein by reference from the exhibits
filed with Post-Effective Amendment No. 63 to the Registration Statement as
filed with the SEC on May 1, 1996 (Accession No. 0000078713-96-000014).

     3Previously filed. Incorporated herein by reference from the exhibit
filed with Post-Effective Amendment No. 61 to the Registration Statement as
filed with the SEC on February 29, 1996 (Accession No. 0000078713-96-000006).

     4Filed herewith.

Item 25.  Persons Controlled by or Under Common Control with Registrant

         No person is controlled by the Registrant. A common control
relationship could exist from a management perspective because the Chairman and
President of the Registrant owns approximately 14% of the outstanding shares of
The Pioneer Group, Inc. (PGI), the parent company of the Registrant's investment
adviser, and certain Trustees or officers of the Registrant (i) hold similar
positions with other investment companies advised by PGI and (ii) are directors
or officers of PGI and/or its direct or indirect subsidiaries. The following
lists all U.S. and the principal non-U.S. subsidiaries of PGI and those
registered investment companies with a common or similar Board of Trustees
advised by PGI.

                                           OWNED   PERCENT    STATE/COUNTRY OF
                COMPANY                     BY    OF SHARES    INCORPORATION
Pioneering Management Corp. (PMC)           PGI     100%          DE
Pioneer Funds Distributor, Inc. (PFD)       PMC     100%          MA
Pioneer Explorer, Inc. (PEI)                PMC     100%          DE
Pioneer Fonds Marketing GmbH (GmbH)         PFD     100%          Germany
Pioneer Forest, Inc. (PFI)                  PGI     100%          DE
CJSC "Forest-Starma" (Forest-Starma)        PFI     95%           Russia
Pioneer Metals and Technology, Inc. (PMT)   PGI     100%          DE
Pioneer Capital Corp. (PCC)                 PGI     100%          DE
Pioneer SBIC Corp.                          PCC     100%          MA
Pioneer Real Estate Advisors, Inc. (PREA)   PGI     100%          DE
Pioneer Management (Ireland) Ltd. (PMIL)    PGI     100%          Ireland
Pioneer Plans Corporation (PPC)             PGI     100%          DE
PIOGlobal Corp. (PIOGlobal)                 PGI     100%          DE
Pioneer Investments Corp. (PIC)             PGI     100%          MA
Pioneer Goldfields Holdings, Inc. (PGH)     PGI     100%          DE
Pioneer Goldfields Ltd. (PGL)               PGH     100%          Guernsey
Teberebie Goldfields Ltd. (TGL)             PGL     90%           Ghana
Pioneer Omega, Inc. (Omega)                 PGI     100%          DE
Pioneer First Russia, Inc. (First Russia)   Omega   81.65%        DE
Pioneering Services Corp. (PSC)             PGI     100%          MA
Pioneer International Corp. (PIntl)         PGI     100%          DE
Pioneer First Polish Investment Fund
JSC, S.A. (First Polish)                    PIntl   100%          Poland
Pioneer Czech Investment Company, A.S.
(Pioneer Czech)                             PIntl   100%          Czech Republic


                                      C-2


<PAGE>


Registered investment companies that are parties to management contracts with
PMC:

FUNDS                                               BUSINESS TRUST
Pioneer International Growth Fund                   MA
Pioneer World Equity Fund                           DE
Pioneer Europe Fund                                 MA
Pioneer Emerging Markets Fund                       DE
Pioneer India Fund                                  DE
Pioneer Growth Trust                                MA
Pioneer Mid-Cap Fund                                DE
Pioneer Growth Shares                               DE
Pioneer Small Company Fund                          DE
Pioneer Independence Fund                           DE
Pioneer Fund                                        DE
Pioneer II                                          DE
Pioneer Real Estate Shares                          DE
Pioneer Short-Term Income Trust                     MA
Pioneer America Income Trust                        MA
Pioneer Bond Fund                                   MA
Pioneer Balanced Fund                               DE
Pioneer Intermediate Tax-Free Fund                  MA
Pioneer Tax-Free Income Fund                        DE
Pioneer Money Market Trust                          DE
Pioneer Variable Contracts Trust                    DE
Pioneer Interest Shares                             DE
Pioneer Micro-Cap Fund                              DE

         The following table lists John F. Cogan, Jr.'s positions with the
investment companies, PGI and principal direct or indirect PGI subsidiaries
referenced above and the Registrant's counsel.

                                              TRUSTEE/
         ENTITY        CHAIRMAN   PRESIDENT   DIRECTOR   OTHER

Pioneer mutual
funds                     X           X          X
PGL                       X           X          X
PGI                       X           X          X
PPC                                   X          X
PIC                                   X          X
PIntl                                 X          X
PMT                                   X          X
Omega                                 X          X
PIOGlobal                             X          X
First Russia                          X          X
PCC                                              X
PSC                                              X
PMIL                                             X
PEI                                              X
PFI                                              X
PREA                                             X
Forest-Starma                                    X
PMC                       X                      X
PFD                       X                      X
TGL                       X                      X
First Polish                                             Chairman of Supervisory
                                                         Board
GmbH                                                     Chairman of Supervisory
                                                         Board
Pioneer Czech                                            Chairman of Supervisory
                                                         Board
Hale and Dorr LLP                                        Partner


                                      C-3


<PAGE>


Item 26.  Number of Holders of Securities

                        (1)
                  Title of Class                         (2)
           Shares of Beneficial Interest       Number of Record Holders
                (without par value)              as of March 30, 1998
           Class A shares                                  264,913
           Class B shares                                    8,747
           Class C shares                                    1,129

Item 27.  Indemnification

         Except for the Agreement and Declaration of Trust (the "Declaration"),
dated April 26, 1996, establishing the Registrant as a business trust under
Delaware law, there is no contract, arrangement or statute under which any
Trustee, officer, underwriter or affiliated person of the Registrant is insured
or indemnified. The Declaration provides that no Trustee or officer will be
indemnified against any liability to which the Registrant would otherwise be
subject by reason of or for willful misfeasance, bad faith, gross negligence or
reckless disregard of such person's duties.

         Insofar as indemnification for liability arising under the Securities
Act of 1933, as amended (the "1933 Act"), may be available to Trustees, officers
and controlling persons of the Registrant pursuant to the foregoing provisions,
or otherwise, the Registrant has been advised that in the opinion of the SEC
such indemnification is against public policy as expressed in the 1933 Act and
is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the Registrant of expenses
incurred or paid by a Trustee, officer or controlling person of the Registrant
in the successful defense of any action, suit or proceeding) is asserted by such
Trustee, officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the 1933 Act and will be governed by the final
adjudication of such issue.    

Item 28.  Business and Other Connections of Investment Adviser

   
         All of the information required by this item is set forth in the Form
ADV, as amended, of PMC, the Registrant's investment adviser. The following
sections of such Form ADV are incorporated herein by reference:    

   
         (a)      Items 1 and 2 of Part 2; and    

   
         (b)      Section 6, Business Background, of each Schedule D.

Item 29.  Principal Underwriters    

         (a)      See Item 25 above.

         (b)      Directors and officers of PFD:

                       POSITIONS AND OFFICES WITH   POSITIONS AND OFFICES WITH
       NAME            UNDERWRITER                  REGISTRANT

John F. Cogan, Jr.     Director and Chairman        Chairman of the Board,
                                                    President and Trustee

Robert L. Butler       Director and President       None

David D. Tripple       Director                     Executive Vice President and
                                                    Trustee

Steven M. Graziano     Senior Vice President        None

Stephen W. Long        Senior Vice President        None

Barry G. Knight        Vice President               None


                                      C-4


<PAGE>


William A. Misata      Vice President               None

Anne W. Patenaude      Vice President               None

   
Elizabeth B. Bennett   Vice President               None    

Gail A. Smyth          Vice President               None

Constance D. Spiros    Vice President               None

Marcy L. Supovitz      Vice President               None

   
Mary Kleeman           Vice President               None    

Steven R. Berke        Assistant Vice President     None

   
Steven H. Forss        Assistant Vice President     None    

Mary Sue Hoban         Assistant Vice President     None

   
Debra A. Levine        Assistant Vice President     None

Junior Roy McFarland   Assistant Vice President     None

Marie E. Moynihan      Assistant Vice President     None    

William H. Keough      Treasurer                    Treasurer

Roy P. Rossi           Assistant Treasurer          None

Joseph P. Barri        Clerk                        Secretary

Robert P. Nault        Assistant Clerk              Assistant Secretary

   
The principal business address of each of these individuals is 60 State Street,
Boston, Massachusetts 02109-1820.    

         (c)      Not applicable.

Item 30.  Location of Accounts and Records

         The accounts and records are maintained at the Registrant's office at
60 State Street, Boston, Massachusetts; contact the Treasurer.

Item 31.  Management Services

   
         Not applicable.    

Item 32.  Undertakings

         (a) Not applicable.

         (b) Not applicable.


                                      C-5


<PAGE>


   
         (c) The Registrant undertakes to deliver or cause to be delivered with
             the Prospectus, to each person to whom the Prospectus is sent or
             given, a copy of the Registrant's report to shareholders furnished
             pursuant to and meeting the requirements of Rule 30d-1 under the
             Investment Company Act of 1940, as amended, from which the
             specified information is incorporated by reference, unless such
             person currently holds securities of the Registrant and otherwise
             has received a copy of such report, in which case the Registrant
             shall state in the Prospectus that it will furnish, without charge,
             a copy of such report on request, and the name, address and
             telephone number of the person to whom such a request should be
             directed.    
       


                                      C-6


<PAGE>


                                   SIGNATURES


   
         Pursuant to the requirements of the Securities Act of 1933 and the
Investment Company Act of 1940, the Registrant certifies that it meets all of
the requirements for effectiveness of this Post-Effective Amendment No. 65 to
its Registration Statement pursuant to Rule 485(b) under the Securities Act of
1933 and has duly caused this Post-Effective Amendment No. 65 to its
Registration Statement to be signed on its behalf by the undersigned, thereto
duly authorized, in the City of Boston and Commonwealth of Massachusetts, on the
29th day of April, 1998.    
                                       PIONEER FUND



                                       By:  /s/ John F. Cogan, Jr.
                                            John F. Cogan, Jr.
                                            Chairman and President

   
         Pursuant to the requirements of the Securities Act of 1933, this
Post-Effective Amendment No. 65 to the Registrant's Registration Statement has
been signed below by the following persons in the capacities and on the date
indicated:

Signature                      Title

/s/ John F. Cogan, Jr.         Chairman of the Board              )
John F. Cogan, Jr.             and President                      )
                               (Principal Executive               )
                               Officer)                           )
                                                                  )
                                                                  )
/s/ William H. Keough          Chief Financial Officer            )
William H. Keough              and Treasurer (Principal           )
                               Financial and Accounting           )
                               Officer)                           )
                                                                  )
                                                                  )
Trustees:                                                         )
                                                                  )
                                                                  )
Mary K. Bush*                                                     )
Mary K. Bush                                                      )
                                                                  )
                                                                  )
/s/ John F. Cogan, Jr.                                            )
John F. Cogan, Jr.                                                )
                                                                  )
                                                                  )
Richard H. Egdahl*                                                )
Richard H. Egdahl                                                 )    


<PAGE>

   
                                                                  )
                                                                  )
Margaret B. W. Graham*                                            )
Margaret B. W. Graham                                             )
                                                                  )
                                                                  )
John W. Kendrick*                                                 )
John W. Kendrick                                                  )
                                                                  )
                                                                  )
Marguerite A. Piret*                                              )
Marguerite A. Piret                                               )
                                                                  )
                                                                  )
David D. Tripple*                                                 )
David D. Tripple                                                  )
                                                                  )
                                                                  )
Stephen K. West*                                                  )
Stephen K. West                                                   )
                                                                  )
                                                                  )
John Winthrop*                                                    )
John Winthrop                                                     )
                                                                  )
                                                                  )
*By:     /s/ John F. Cogan, Jr.             Dated:  April 29, 1998)
         John F. Cogan, Jr.
         Attorney-in-fact    


<PAGE>



                                  Exhibit Index


Exhibit
Number            Document Title

   
11.               Consent of Independent Public Accountants

17.               Financial Data Schedules

19.1              Power of Attorney for Mary K. Bush    







                              ARTHUR ANDERSEN LLP





                    Consent of Independent Public Accountants



As independent public accountants, we hereby consent to the use of our report
on Pioneer Fund dated February 2, 1998 (and to all references to our firm)
included in or made a part of Post-Effective Amendment No. 65 and Amendment
No. 31 to Registration Statement File Nos. 2-25980 and 811-07613, respectively.



                                             /s/ Arthur Andersen LLP
                                             Arthur Andersen LLP

Boston, Massachusetts
April 27, 1998



<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL DATA EXTRACTED FROM THE ANNUAL REPORT
ON FORM N-SAR DATED DECEMBER 31, 1997 FOR PIONEER FUND AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH REPORT.
</LEGEND>
<CIK> 0000078713
<NAME> PIONEER FUND
<SERIES>
   <NUMBER> 001
   <NAME> PIONEER FUND CLASS A
<MULTIPLIER> 1,000
       
<S>                                     <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                       2108284229
<INVESTMENTS-AT-VALUE>                      4066945295
<RECEIVABLES>                                  9355648
<ASSETS-OTHER>                                   70043
<OTHER-ITEMS-ASSETS>                               624
<TOTAL-ASSETS>                              4076371610
<PAYABLE-FOR-SECURITIES>                      16196043
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      7179060
<TOTAL-LIABILITIES>                           23375103
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    2094071011
<SHARES-COMMON-STOCK>                        114206463
<SHARES-COMMON-PRIOR>                        107715495
<ACCUMULATED-NII-CURRENT>                       264430
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    1958661066
<NET-ASSETS>                                4052996507
<DIVIDEND-INCOME>                             67647333
<INTEREST-INCOME>                               964536
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                35907530
<NET-INVESTMENT-INCOME>                       32704339
<REALIZED-GAINS-CURRENT>                     208300236
<APPREC-INCREASE-CURRENT>                    877438631
<NET-CHANGE-FROM-OPS>                       1118443206
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     33233565
<DISTRIBUTIONS-OF-GAINS>                     205353843
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                       11315545
<NUMBER-OF-SHARES-REDEEMED>                   11203914
<SHARES-REINVESTED>                            6379337
<NET-CHANGE-IN-ASSETS>                      1145554743
<ACCUMULATED-NII-PRIOR>                         892736
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                         21236502
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                               36372184
<AVERAGE-NET-ASSETS>                        3464997162          
<PER-SHARE-NAV-BEGIN>                            26.89
<PER-SHARE-NII>                                    .30
<PER-SHARE-GAIN-APPREC>                           9.97
<PER-SHARE-DIVIDEND>                               .31
<PER-SHARE-DISTRIBUTIONS>                         1.90
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              34.95
<EXPENSE-RATIO>                                   1.03
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL DATA EXTRACTED FROM THE ANNUAL REPORT
ON FORM N-SAR DATED DECEMBER 31, 1997 FOR PIONEER FUND AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH REPORT.
</LEGEND>
<CIK>     0000078713
<NAME>    PIONEER FUND
<SERIES>
   <NUMBER>    002
   <NAME>      PIONEER FUND CLASS B
<MULTIPLIER> 1,000
       
<S>                                     <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                       2108284229
<INVESTMENTS-AT-VALUE>                      4066945295
<RECEIVABLES>                                  9355648
<ASSETS-OTHER>                                   70043
<OTHER-ITEMS-ASSETS>                               624
<TOTAL-ASSETS>                              4076371610
<PAYABLE-FOR-SECURITIES>                      16196043
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      7179060
<TOTAL-LIABILITIES>                           23375103
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    2094071011
<SHARES-COMMON-STOCK>                          1514216
<SHARES-COMMON-PRIOR>                           330856
<ACCUMULATED-NII-CURRENT>                       264430
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    1958661066
<NET-ASSETS>                                4052996507
<DIVIDEND-INCOME>                             67647333
<INTEREST-INCOME>                               964536
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                35907530
<NET-INVESTMENT-INCOME>                       32704339
<REALIZED-GAINS-CURRENT>                     208300236
<APPREC-INCREASE-CURRENT>                    877438631
<NET-CHANGE-FROM-OPS>                       1118443206
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                        71137
<DISTRIBUTIONS-OF-GAINS>                       2591421
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        1335573
<NUMBER-OF-SHARES-REDEEMED>                     225262
<SHARES-REINVESTED>                              73049
<NET-CHANGE-IN-ASSETS>                      1145554743
<ACCUMULATED-NII-PRIOR>                         892736
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                         21236502
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                               36372184
<AVERAGE-NET-ASSETS>                          26988127
<PER-SHARE-NAV-BEGIN>                            27.02
<PER-SHARE-NII>                                    .01
<PER-SHARE-GAIN-APPREC>                           9.99
<PER-SHARE-DIVIDEND>                               .11
<PER-SHARE-DISTRIBUTIONS>                         1.90
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              35.01
<EXPENSE-RATIO>                                   1.92
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL DATA EXTRACTED FROM THE ANNUAL REPORT
ON FORM N-SAR DATED DECEMBER 31, 1997 FOR PIONEER FUND AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH REPORT.
</LEGEND>
<CIK>     0000078713
<NAME>    PIONEER FUND
<SERIES>
   <NUMBER>    003
   <NAME>      PIONEER FUND CLASS C
<MULTIPLIER> 1,000
       
<S>                                     <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                       2108284229
<INVESTMENTS-AT-VALUE>                      4066945295
<RECEIVABLES>                                  9355648
<ASSETS-OTHER>                                   70043
<OTHER-ITEMS-ASSETS>                               624
<TOTAL-ASSETS>                              4076371610
<PAYABLE-FOR-SECURITIES>                      16196043
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      7179060
<TOTAL-LIABILITIES>                           23375103
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    2094071011
<SHARES-COMMON-STOCK>                           238354
<SHARES-COMMON-PRIOR>                            68470
<ACCUMULATED-NII-CURRENT>                       264430
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    1958661066
<NET-ASSETS>                                4052996507
<DIVIDEND-INCOME>                             67647333
<INTEREST-INCOME>                               964536
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                35907530
<NET-INVESTMENT-INCOME>                       32704339
<REALIZED-GAINS-CURRENT>                     208300236
<APPREC-INCREASE-CURRENT>                    877438631
<NET-CHANGE-FROM-OPS>                       1118443206
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                         8434
<DISTRIBUTIONS-OF-GAINS>                        374276
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         271638
<NUMBER-OF-SHARES-REDEEMED>                     110127
<SHARES-REINVESTED>                               8373
<NET-CHANGE-IN-ASSETS>                      1145554743
<ACCUMULATED-NII-PRIOR>                         892736
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                         21236502
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                               36372184
<AVERAGE-NET-ASSETS>                           4471271
<PER-SHARE-NAV-BEGIN>                            26.74
<PER-SHARE-NII>                                    .02
<PER-SHARE-GAIN-APPREC>                           9.89
<PER-SHARE-DIVIDEND>                               .09
<PER-SHARE-DISTRIBUTIONS>                         1.90
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              34.66
<EXPENSE-RATIO>                                   1.87
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>



                          PIONEER EMERGING MARKETS FUND
                               PIONEER EUROPE FUND
                              PIONEER GROWTH TRUST
                               PIONEER INDIA FUND
                        PIONEER INTERNATIONAL GROWTH FUND
                            PIONEER WORLD EQUITY FUND
                              PIONEER GROWTH SHARES
                              PIONEER MID-CAP FUND
                           PIONEER SMALL COMPANY FUND
                             PIONEER MICRO-CAP FUND
                              PIONEER BALANCED FUND
                                  PIONEER FUND
                                   PIONEER II
                           PIONEER REAL ESTATE SHARES
                          PIONEER AMERICA INCOME TRUST
                                PIONEER BOND FUND
                         PIONEER SHORT TERM INCOME TRUST
                       PIONEER INTERMEDIATE TAX-FREE FUND
                           PIONEER MONEY MARKET TRUST


                                POWER OF ATTORNEY

                              Dated October 7, 1997

     I, the undersigned Trustee of each of the above-listed registered
investment companies (each a "Fund"), each a Delaware or a Massachusetts
business trust, do hereby constitute and appoint John F. Cogan, Jr., David D.
Tripple, and Joseph P. Barri, and each of them acting singly, to be my true,
sufficient and lawful attorneys, with full power to each of them, and each of
them acting singly, to sign for me, in my name and in my capacity as trustee,
any and all amendments to the Registration Statement on Form N-1A to be filed by
each Fund under the Investment Company Act of 1940, as amended (the "1940 Act"),
and under the Securities Act of 1933, as amended (the "1933 Act"), with respect
to the offering of its shares of beneficial interest and any and all other
documents and papers relating thereto, and generally to do all such things in my
name and on my behalf in my capacity as trustee to enable each Fund to comply
with the 1940 Act and the 1933 Act, and all requirements of the Securities and
Exchange Commission thereunder, hereby ratifying and confirming my signature as
it may be signed by said attorneys or each of them to any and all amendments to
said Registration Statement.

     IN WITNESS WHEREOF, I have hereunder set my hand on this Instrument as
of the date first written above.



                                                /s/ Mary K. Bush

                                                Mary K. Bush, Trustee




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