PROFUNDS
485BPOS, 1998-04-24
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<PAGE>   1
                                                     Registration Nos. 333-28339
                                                                       811-08239

   
   As filed with the Securities and Exchange Commission on April 24, 1998
    


                       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.     2          (X)
                                     and/or

      REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 (X)
                                  Amendment No.            5          (X)
    

                                    PROFUNDS
               (Exact Name of Registrant as Specified in Charter)

                        7900 Wisconsin Avenue, Suite 300
                            Bethesda, Maryland 20814
               (Address of Principal Executive Offices) (Zip Code)

                                 (301) 657-1970
              (Registrant's Telephone Number, Including Area Code)


 Michael L. Sapir, Chairman                                with a copy to:
        ProFund Advisors LLC                              William J. Tomko
  7900 Wisconsin Avenue, Suite 300                       BISYS Fund Services
      Bethesda, Maryland 20814                            3435 Stelzer Road
(Name and Address of Agent for Service of Process)      Columbus, Ohio 43219

Approximate Date of Commencement of the Proposed Public Offering of the 
Securities:

   
It is proposed that this filing will become effective:

 X       Immediately upon filing pursuant to paragraph (b)
- ---

         60 days after filing pursuant to paragraph (a)(1)
- ---

         On ______________ pursuant to paragraph (a)(2)
- ---

         75 days after filing pursuant to paragraph (a)(2)
- ---

         On ______________ pursuant to paragraph (a)(2) of Rule 485
- ---
    

   
If appropriate, check the following:

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


This post-effective amendment no. 2 to the registration statement on Form N-1A
of ProFunds (the "Trust") relates only to the prospectus describing the
Investor Shares and the Service Shares of the Bull ProFund, UltraBull ProFund,
Bear ProFund, UltraBear ProFund, UltraOTC ProFund, and Money Market ProFund
series of the Trust, as well as the statement of additional information
describing all series of the Trust. The prospectus describing the Investor
Shares and the Service Shares of the UltraShort OTC ProFund series of the Trust
is hereby incorporated by reference to post-effective amendment no. 1 to the
Trust's registration statement as filed on February 24, 1998.

Cash Management Portfolio has also executed this Registration Statement.
    
<PAGE>   2
                                    PROFUNDS
                       REGISTRATION STATEMENT ON FORM N-1A
                              CROSS REFERENCE SHEET

   Form N-1A Item No.                    Location in Registration Statement
   ------------------                    ----------------------------------

                   Part A: Information Required in Prospectus
                   ------------------------------------------

   
    

1. Cover Page                            Outside Front Cover Page of Prospectus

   
2. Synopsis                              Overview; Fees and Expenses
    
   
3. Condensed Financial Information       Financial Highlights
    

4. General Description of Registrant     General Information about the Trust;
                                         Investment Objectives; Investment
                                         Policies and Techniques; Special 
                                         Considerations

   
5. Management of the Fund                Management of the ProFunds

6. Capital Stock and Other Securities    Shareholders' Guide -- Dividends and 
                                         Distributions; Taxes

7. Purchase of Securities Being Offered  Shareholders' Guide

8. Redemption or Repurchase              Shareholders' Guide
    

9. Legal Proceedings                     Not Applicable

                         Part B: Information Required in
                       Statement of Additional Information
                       -----------------------------------

   
    

10. Cover Page                           Outside Front Cover Page of Statement

11. Table of Contents                    Table of Contents

12. General Information and History      Not Applicable

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

14. Management of the Registrant         Management of ProFunds

   
15. Control Persons and Principal        Management of ProFunds --
                                         Capitalization
    Holders of Securities
    

16. Investment Advisory and Other        Management of ProFunds
    Services

   
17. Brokerage Allocation and Brokerage   Portfolio Transactions and Brokerage

18. Capital Stock and Other Securities   Capitalization
    

19. Purchase, Redemption, and            Not Applicable
    Pricing of Securities Being Offered

   
20. Tax Status                           Taxation
    


                                       2
<PAGE>   3



21. Underwriters                         Management of the Trust

22. Calculation of Performance Data      Performance Information

23. Financial Statements                 Financial Statements




                                       3
<PAGE>   4




PROSPECTUS











[LOGO]

PROFUNDS(TM)

























   
April 24, 1998
    
<PAGE>   5
 
- -----------
- --------------------------------------------------------------------------------
 
PRO FUNDS LOGO
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                PAGE
                                ----
<S>                             <C>
OVERVIEW......................    3
FEES AND EXPENSES.............    7
  Fee Tables..................    7
  Examples....................    9
FINANCIAL HIGHLIGHTS..........   10
SHAREHOLDERS' GUIDE...........   12
  How to Invest in the
     ProFunds.................   12
  How to Exchange Shares of
     the ProFunds.............   13
  How to Withdraw Money
     (Redeem Shares)..........   14
  Special Information
     Regarding Telephone
     Requests for Redemptions
     and Exchanges............   15
  How to Make Automatic
     Investments, Exchanges
     and Withdrawals..........   16
  Dividends and
     Distributions............   16
  Tax-Sheltered Retirement
     Plans....................   17
  Miscellaneous...............   18
SPECIAL CONSIDERATIONS........   20
  Tracking Error..............   20
  Aggressive Investment
     Techniques...............   20
  Leverage....................   21
  Non-Diversified Status......   21
INVESTMENT OBJECTIVES.........   23
  General.....................   23
  Benchmarks of the ProFunds..   23
  The Bull ProFund and
     UltraBull ProFund........   24
  The Bear ProFund and
     UltraBear ProFund........   24
</TABLE>
    
 
   
<TABLE>
<CAPTION>
                                PAGE
                                ----
<S>                             <C>
  The Ultra OTC ProFund.......   25
  The Money Market ProFund....   26
INVESTMENT POLICIES AND
  TECHNIQUES..................   28
  Futures Contracts and
     Related Options..........   28
  Index Options
     Transactions.............   29
  Options on Securities.......   30
  Short Sales.................   31
  U.S. Government
     Securities...............   31
  Repurchase Agreements.......   32
  Cash Reserves...............   33
  Transaction Expenses........   33
  Other Investment Policies...   33
  Cash Management Portfolio...   34
  Special Information
     Concerning Master-Feeder
     Fund Structure...........   39
TAXES.........................   42
MANAGEMENT OF THE PROFUNDS....   44
  Investment Advisors.........   44
  Service Providers...........   46
  Cost and Expenses...........   48
  Portfolio Trading
     Practices................   49
GENERAL INFORMATION ABOUT THE
  TRUST.......................   50
  Organization and Description
     of Shares of Beneficial
     Interest.................   50
  Determination of Net Asset
     Value....................   50
  Fundamental Policies........   52
  Trustees and Officers.......   53
  Auditors....................   53
</TABLE>
    
<PAGE>   6
 
                       7900 WISCONSIN AVENUE, SUITE 300
                       BETHESDA, MARYLAND 20814
                       (888) PRO-5717 (FINANCIAL PROFESSIONALS ONLY)
PRO FUNDS LOGO         (888) PRO-FNDS ((888) 776-3637) (FOR ALL OTHERS)
- --------------------------------------------------------------------------------
 
    This prospectus describes six ProFunds. The ProFunds offers two classes of
shares: Service Shares and Investor Shares. The ProFunds may be used by
professional money managers and investors as part of an asset-allocation or
market-timing investment strategy, to create specified investment exposure to a
particular segment of the securities market or to hedge an existing investment
portfolio. Sales are made without any sales charge at net asset value.
 
    Each non-money market ProFund seeks investment results that correspond each
day to a specified benchmark. The following are the non-money market ProFunds
and their benchmarks:
 
<TABLE>
<CAPTION>
- ----------------      ---------------------------------------------------------
      FUND                                    BENCHMARK
- ----------------      ---------------------------------------------------------
<S>                   <C>
Bull ProFund          S&P 500 Composite Stock Price Index(TM) ("S&P 500 Index")
UltraBull             Twice (200%) the performance of the S&P 500 Index
  ProFund
Bear ProFund          Inverse (opposite) of the performance of the S&P 500
                        Index
UltraBear             Twice (200%) the inverse (opposite) of the performance of
  ProFund               the S&P 500 Index
UltraOTC ProFund      Twice (200%) the performance of the NASDAQ 100 Index(TM)
</TABLE>
 
    The ProFunds also include the Money Market ProFund. The Money Market ProFund
seeks a high level of current income consistent with liquidity and preservation
of capital through investment in high quality money market instruments. UNLIKE
OTHER MUTUAL FUNDS (AND THE OTHER PROFUNDS), THE MONEY MARKET PROFUND SEEKS TO
ACHIEVE ITS INVESTMENT OBJECTIVE BY INVESTING ALL OF ITS INVESTABLE ASSETS IN
THE CASH MANAGEMENT PORTFOLIO (THE "PORTFOLIO"), A SEPARATE INVESTMENT COMPANY
WITH AN IDENTICAL INVESTMENT OBJECTIVE. THE
 
                                                          Continued on next page
 
                               INVESTMENT ADVISORS
 
<TABLE>
<S>                            <C>
     PROFUND ADVISORS LLC          BANKERS TRUST COMPANY
  Non-Money Market ProFunds      Cash Management Portfolio
</TABLE>
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
 
   
                 The date of this Prospectus is April 24, 1998
    
<PAGE>   7
- -----------
- --------------------------------------------------------------------------------
 
PRO FUNDS LOGO
 
Continued from Previous Page
 
PERFORMANCE OF THE MONEY MARKET PROFUND WILL CORRESPOND DIRECTLY TO THE
INVESTMENT PERFORMANCE OF THE PORTFOLIO. SHARES OF THE MONEY MARKET PROFUND ARE
NOT DEPOSITS OR OBLIGATIONS OF ANY BANK, AND ARE NOT ENDORSED OR GUARANTEED BY
ANY BANK, AND AN INVESTMENT IN THIS PROFUND IS NEITHER INSURED NOR GUARANTEED BY
THE UNITED STATES GOVERNMENT. THE MONEY MARKET PROFUND SEEKS TO MAINTAIN A
CONSTANT $1.00 NET ASSET VALUE PER SHARE, ALTHOUGH THIS CANNOT BE ASSURED.
 
    The ProFunds involve special risks, some not traditionally associated with
mutual funds. Investors should carefully review and evaluate these risks in
considering an investment in the ProFunds to determine whether an investment in
the ProFunds is appropriate. None of the ProFunds alone constitutes a balanced
investment plan and the non-money market ProFunds are not intended for investors
whose principal objective is current income or preservation of capital. See
"Special Considerations." Because of the inherent risks in any investment, there
can be no assurance that the ProFunds' investment objectives will be achieved.
 
   
    Investors should read this Prospectus and retain it for future reference.
This Prospectus is designed to set forth concisely the information an investor
should know about the ProFunds before investing. A Statement of Additional
Information ("SAI"), dated April 24, 1998, containing additional information
about ProFunds has been filed with the Securities and Exchange Commission and is
incorporated herein by reference. A copy of this SAI is available, without
charge, upon request to ProFunds at the address above or by telephoning ProFunds
at the telephone numbers above.
    
 
                                                                -----------
- --------------------------------------------------------------------------------
 
LOGO 2
<PAGE>   8
- --------------------------------------------------------------------------------
 
                                    OVERVIEW
                                    PROFUNDS
 
    Each ProFund has its own distinct investment objective. There is, of course,
no guarantee that any mutual fund will achieve its investment objective.
 
    The investment objectives of the ProFunds are as follows:
 
    The Bull ProFund and the UltraBull ProFund. The Bull ProFund's investment
objective is to provide investment returns that correspond to the performance of
the S&P 500 Index. The UltraBull ProFund's investment objective is to provide
investment returns that correspond to 200% of the performance of the S&P 500
Index. The UltraBull ProFund should gain more than the Bull ProFund when the
prices of the securities in the S&P 500 Index rise and lose more when such
prices decline.
 
    The Bear ProFund and the UltraBear ProFund. The Bear ProFund's investment
objective is to provide investment results that will inversely correlates to the
performance of the S&P 500 Index. The UltraBear ProFund's investment objective
is to provide investment results that will inversely correlate to 200% of the
performance of the S&P 500 Index.
 
    If the Bear ProFund is successful in meeting its objective, the net asset
value of Bear ProFund shares will increase in direct proportion to any decrease
in the level of the S&P 500 Index. Conversely, the net asset value of Bear
ProFund shares will decrease in direct proportion to any increases in the level
of the S&P 500 Index. The net asset value of shares of the UltraBear ProFund
should increase or decrease approximately twice as much as does that of the Bear
ProFund on any given day.
 
    The UltraOTC ProFund. The investment objective of the UltraOTC ProFund is to
provide investment results that correspond to 200% of the performance of the
NASDAQ 100 Index. The NASDAQ 100 Index includes 100 of the largest non-
financial domestic companies listed on the NASDAQ National Market tier of The
NASDAQ Stock Market.
 
    The Money Market ProFund. The Money Market ProFund seeks, as its investment
objective, a high level of current income consistent with liquidity and
preservation of capital. To achieve its objective, the Money Market ProFund
invests all of its investable assets in the Portfolio, which has the same
investment objective as the Money Market ProFund. This two-tiered investment
approach is commonly referred to as a master-feeder fund structure. See
"Investment Policies and Techniques -- Special Information Concerning
Master-Feeder Fund Structure."
 
- --------------------------------------------------------------------------------
- -----------
                                                                      Prospectus
 
                                                                            LOGO
                                                                       3
<PAGE>   9
- -----------
- --------------------------------------------------------------------------------
 
PRO FUNDS LOGO
 
    A discussion of each ProFund's investment objective and policies is provided
below under "Investment Objectives" and "Investment Policies and Techniques."
 
SPECIAL RISK CONSIDERATIONS
 
    The ProFunds present certain risks to investors, some that are usually not
associated with mutual funds, which are discussed below and elsewhere in this
Prospectus. Investors should carefully review and evaluate these risks in
considering an investment in the ProFunds to determine whether an investment in
the ProFunds is appropriate. This discussion should be read in conjunction with
the rest of the Prospectus and "Special Considerations."
 
    The ProFunds expect that a substantial portion of the assets of the ProFunds
will be derived from professional money managers and investors who intend to
invest in the ProFunds as part of their tactical investment strategies. These
investors are likely to redeem or exchange their ProFund shares frequently to
take advantage of anticipated changes in market conditions. The strategies
employed by ProFund shareholders may result in considerable assets moving in and
out of the ProFunds. Consequently, the ProFunds expect that they will experience
unusually high portfolio turnover. This portfolio turnover will cause the
realization of capital gains and losses, higher expenses and additional costs.
Additionally, a high portfolio turnover may adversely affect the ability of a
ProFund to meet its investment objective. For further information concerning the
portfolio turnover of the ProFunds, see "Special Considerations" in this
Prospectus.
 
    Shareholders in the Bear ProFund and the UltraBear ProFund should lose money
while prices of the securities in the S&P 500 Index increase. This is the
opposite likely result expected of investing in a traditional equity mutual fund
in a generally rising stock market.
 
    Investors in the UltraBull ProFund and the UltraBear ProFund employ
leveraged investment techniques. Investors in these ProFunds will experience
magnified losses in market conditions that are adverse to their investment
objectives.
 
    While the ProFunds do not expect that their returns over the course of a
year will deviate adversely from their respective current benchmarks by more
than 10%, certain factors may affect their ability to achieve this correlation.
 
    The ProFunds (other than the Money Market ProFund) may engage in certain
aggressive investment techniques, which may include engaging in short sales and
transactions in futures contracts and options on securities, stock indexes, and
futures contracts. Employing these techniques requires special skills and
knowledge. Also, there may be periods when the ProFunds may not be able
 
                                                                -----------
- --------------------------------------------------------------------------------
 
LOGO 4
<PAGE>   10
- --------------------------------------------------------------------------------
 
to liquidate their positions. These and other risks are more fully discussed
under "Special Considerations", "Investment Objectives" and "Investment Policies
and Techniques."
 
    Each non-money market ProFund is a "non-diversified" series of the ProFunds.
A ProFund is considered "non-diversified" because a relatively high percentage
of the ProFund's assets may be invested in the securities of a limited number of
issuers, primarily within the same economic sector. Such ProFund's portfolio
securities, therefore, may be more susceptible to any single economic,
political, or regulatory occurrence than the portfolio securities of a more
diversified investment company. See "Special Considerations" for a discussion of
these factors.
 
PURCHASES, REDEMPTIONS, AND EXCHANGES OF SHARES
 
    The shares of the ProFunds may be purchased and redeemed, without any sales
or redemption charge, at the next determined net asset value per share of the
ProFund. Purchases of shares may be made by check or wire transfer.
 
    The minimum initial investment in the ProFunds for investors who have
engaged a registered investment adviser with discretionary authority over the
shareholder's account is $5,000. The minimum is $15,000 for all other investors.
 
    Shares of any of the ProFunds may be exchanged at any time for shares of the
same class of any other ProFund, without any charge, on the basis of their
relative net asset values next computed.
 
    See "Shareholders Guide" for more information about buying, exchanging and
redeeming ProFund shares.
 
INVESTMENT ADVISORS
 
    The investment advisor of the non-money market ProFunds is ProFund Advisors
LLC (the "Advisor"). The Advisor is located in Bethesda, Maryland. See
"Management of the ProFunds." The investment advisor of the Portfolio is Bankers
Trust Company ("Bankers Trust"), a wholly-owned subsidiary of Bankers Trust New
York Corporation.
 
- --------------------------------------------------------------------------------
- -----------
                                                                      Prospectus
 
                                                                            LOGO
                                                                       5
<PAGE>   11
- -----------
- --------------------------------------------------------------------------------
 
PRO FUNDS LOGO
 
ADMINISTRATOR, TRANSFER AGENT, FUND ACCOUNTING AGENT AND CUSTODIAN
 
    BISYS Fund Services Limited Partnership d/b/a BISYS Fund Services ("BISYS")
acts as Administrator to the ProFunds. ProFund Advisors LLC, pursuant to a
separate Administration Agreement, performs certain administrative and
shareholder services on behalf of the ProFunds. BISYS Funds Services, Inc.
("BFSI"), an affiliate of BISYS, acts as transfer agent and fund accounting
agent for the ProFunds, for which it receives additional fees. UMB Bank, N.A.
serves as the custodian of the ProFunds' securities and other assets.
 
                                                                -----------
- --------------------------------------------------------------------------------
 
LOGO 6
<PAGE>   12
- --------------------------------------------------------------------------------
 
                               FEES AND EXPENSES
 
FEE TABLES
 
     The following table illustrates all expenses and fees that a shareholder of
the ProFunds' Investor Shares will incur in the first year of operations:
 
<TABLE>
<CAPTION>
                                                                                   MONEY
                            BULL     ULTRABULL    BEAR     ULTRABEAR   ULTRAOTC   MARKET
                           PROFUND    PROFUND    PROFUND    PROFUND    PROFUND    PROFUND
<S>                        <C>       <C>         <C>       <C>         <C>        <C>
Shareholder Transaction
  Expenses:
Sales Load Imposed On
  Purchases..............   None       None       None       None        None      None
Sales Load Imposed On
  Reinvested Dividends...   None       None       None       None        None      None
Deferred Sales Load......   None       None       None       None        None      None
Redemption Fees(1).......   None       None       None       None        None      None
Exchange Fees............   None       None       None       None        None      None
Annual Fund Operating
  Expenses:
Advisory Fees............  0.75%      0.75%      0.75%      0.75%       0.75%     0.15%(2)
12b-1 Fees...............   None       None       None       None        None      None
Other Expenses After
  Waiver(3)(4)...........  0.58%      0.58%      0.58%      0.58%       0.58%     0.68%
Total ProFund Operating
  Expenses After Waiver..  1.33%      1.33%      1.33%      1.33%       1.33%     0.83%
</TABLE>
 
     The following table illustrates all expenses and fees that a shareholder of
the ProFunds' Service Shares will incur in the first year of operations:
 
<TABLE>
<CAPTION>
                                                                                  MONEY
                           BULL     ULTRABULL    BEAR     ULTRABEAR   ULTRAOTC   MARKET
                          PROFUND    PROFUND    PROFUND    PROFUND    PROFUND    PROFUND
<S>                       <C>       <C>         <C>       <C>         <C>        <C>
Shareholder Transaction
  Expenses:
Sales Load Imposed on
  Purchases.............   None       None       None       None        None      None
Sales Load Imposed on
  Reinvested
  Dividends.............   None       None       None       None        None      None
Deferred Sales Load.....   None       None       None       None        None      None
Redemption Fees(1)......   None       None       None       None        None      None
Exchange Fees...........   None       None       None       None        None      None
</TABLE>
 
- --------------------------------------------------------------------------------
- -----------
                                                                      Prospectus
 
                                                                            LOGO
                                                                       7
<PAGE>   13
- -----------
- --------------------------------------------------------------------------------
 
PRO FUNDS LOGO
 
<TABLE>
<CAPTION>
                                                                                  MONEY
                           BULL     ULTRABULL    BEAR     ULTRABEAR   ULTRAOTC   MARKET
                          PROFUND    PROFUND    PROFUND    PROFUND    PROFUND    PROFUND
<S>                       <C>       <C>         <C>       <C>         <C>        <C>
Annual Fund Operating
  Expenses:
Advisory Fees...........  0.75%      0.75%      0.75%      0.75%       0.75%     0.15%(2)
12b-1 Fees..............   None       None       None       None        None      None
Other Expenses After
  Waiver(3)(4)..........  1.58%      1.58%      1.58%      1.58%       1.58%     1.68%
Total ProFund Operating
  Expenses After
  Waiver................  2.33%      2.33%      2.33%      2.33%       2.33%     1.83%
</TABLE>
 
    (1) The ProFunds charge $15 for each wire transfer of redemption proceeds;
        this charge may be waived at the discretion of the ProFunds.
 
    (2) The Portfolio pays Bankers Trust a .15% advisory fee, of which the Money
        Market ProFund bears its pro rata portion. The ProFunds' Board of
        Trustees believes that the aggregate per share expenses of the Money
        Market ProFund and the Portfolio will be approximately equal to the
        expenses the Fund would incur if its assets were invested directly in
        money market securities.
 
    (3) Based on estimated expenses to be incurred in the ProFunds' first year
        of operations. Other expenses include fees of .15% (.35% in the case of
        the Money Market ProFund) for administration and shareholder services,
        and in the case of the Portfolio, an administration and services fee of
        .05%. The fee under each ProFund's Shareholder Services Plan is
        calculated on the basis of the average net assets of each ProFund's
        Service Shares at an annual rate not to exceed 1.00%.
 
    (4) Without waiver of administration fees, "Other Expenses" and "Total
        Operating Expenses" would be 0.71% and 1.46%, respectively, for the
        Investor Class and 1.71% and 2.46%, respectively, for the Service Class
        of the non-money market ProFunds. In the case of the Money Market
        ProFund, without waiver of administration fees, the amounts would be
        0.87% and 1.02%, respectively for the Investor Class and 1.87% and
        2.02%, respectively for the Service Class.
 
                                                                -----------
- --------------------------------------------------------------------------------
 
LOGO 8
<PAGE>   14
- --------------------------------------------------------------------------------
 
EXAMPLES
 
    Assuming hypothetical investments of $1,000 in Investor Shares of each of
the ProFunds, a 5% annual return, and redemption at the end of each time period,
an investor in each of the ProFunds would pay operating expenses as follows:
 
<TABLE>
<CAPTION>
                                                              1 YEAR   3 YEARS
<S>                                                           <C>      <C>
Bull ProFund................................................   $14       $42
UltraBull ProFund...........................................    14        42
Bear ProFund................................................    14        42
UltraBear ProFund...........................................    14        42
UltraOTC ProFund............................................    14        42
Money Market ProFund........................................     8        26
</TABLE>
 
    Assuming hypothetical investments of $1,000 in Service Shares of each of the
ProFunds, a 5% annual return, and redemption at the end of each time period, an
investor in each of the ProFunds would pay operating expenses as follows:
 
<TABLE>
<CAPTION>
                                                              1 YEAR   3 YEARS
<S>                                                           <C>      <C>
Bull ProFund................................................   $24       $73
UltraBull ProFund...........................................    24        73
Bear ProFund................................................    24        73
UltraBear ProFund...........................................    24        73
UltraOTC ProFund............................................    24        73
Money Market ProFund........................................    19        60
</TABLE>
 
    The preceding tables of fees and expenses are provided to assist investors
in understanding the various costs and expenses which may be borne directly or
indirectly by an investor in each of the ProFunds' Service Shares and Investor
Shares. The fees and expenses of the Money Market ProFund reflect the expenses
of both that ProFund and its pro rata share of the expenses of the Portfolio.
The percentages shown above are based on estimates. The 5% assumed annual return
is for comparison purposes only. For a more complete discussion of the fees
connected with an investment in the ProFunds and the services provided to the
ProFunds, see "Management of the ProFunds" in this Prospectus and in the SAI.
THE PRECEDING EXAMPLES SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR
FUTURE EXPENSES; ACTUAL EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN.
 
- --------------------------------------------------------------------------------
- -----------
                                                                      Prospectus
 
                                                                            LOGO
                                                                       9
<PAGE>   15
- -----------
- --------------------------------------------------------------------------------
 
PRO FUNDS LOGO
 
   
                              FINANCIAL HIGHLIGHTS
    
 
   
    The following table presents per share financial information for the period
ended December 31, 1997 for the Investor Class of each ProFund. The Financial
Highlights have been audited by Coopers & Lybrand LLP, independent accountants,
whose report on the financial statements of the ProFunds appears in the
ProFunds' Annual Report for the fiscal year ended December 31, 1997 (the "Annual
Report"). These statements should be read in conjunction with the "Report of
Independent Accountants" and the other financial statements and related notes
which are contained in the Annual Report. Copies of the Annual Report are
available upon request without charge by phoning (888) 776-3637.
    
 
   
                                INVESTOR SHARES
    
 
   
<TABLE>
<CAPTION>
                                                                                                          MONEY
                                BULL        ULTRABULL         BEAR        ULTRABEAR       ULTRAOTC        MARKET
                              PROFUND        PROFUND        PROFUND        PROFUND        PROFUND        PROFUND
                             12/2/97 TO    11/28/97 TO    12/31/97 TO    12/23/97 TO     12/2/97 TO    11/17/97 TO
                            12/31/97(A)    12/31/97(A)    12/31/97(A)    12/31/97(A)    12/31/97(A)    12/31/97(A)
<S>                         <C>            <C>            <C>            <C>            <C>            <C>
Net asset value, beginning
 of period................    $  10.00      $    10.00     $    10.00     $   10.00       $  10.00       $   1.00
                              --------      ----------     ----------     ---------       --------       --------
Income from investment
 operations:
 Net investment income
   (loss).................        0.02            0.01             --      1,216.50(e)        0.06          0.006
 Net realized and
   unrealized gain (loss)
   on investments.........       (0.13)           0.28             --     (1,216.14)(e)      (1.70)            --
                              --------      ----------     ----------     ---------       --------       --------
   Total from investment
     operations...........       (0.11)           0.29             --          0.36          (1.64)         0.006
                              --------      ----------     ----------     ---------       --------       --------
Distributions to
 shareholders from:
 Net investment income....          --              --             --            --             --         (0.006)
                              --------      ----------     ----------     ---------       --------       --------
Net asset value, end of
 period...................    $   9.89      $    10.29     $    10.00     $   10.36       $   8.36       $   1.00
                              ========      ==========     ==========     =========       ========       ========
Total return..............      (1.10%)(b)       2.90%(b)       0.00%(b)      3.60%(b)     (16.40%)(b)      0.61%(b)
Ratios/Supplemental Data:
Net assets, end of
 period...................    $ 46,281      $6,043,740     $2,516,412     $      21       $256,184       $286,962
Ratio of expenses to
 average net assets.......       1.33%(c)        1.33%(c)       0.00%(c)      1.33%(c)       1.07%(c)       0.83%(c)(d)
Ratio of net investment
 income (loss) to average
 net assets...............       2.97%(c)        2.26%(c)       0.00%(c)      2.97%(c)       2.73%(c)       4.92%(c)
Ratio of expenses to
 average net assets*......     423.48%(c)       12.69%(c)     325.97%(c)     32.39%(c)      21.74%(c)       9.52%(c)(d)
Ratio of net investment
 income (loss) to average
 net assets*..............    (419.18%)(c)      (9.10%)(c)    (325.97%)(c)    (28.09%)(c)    (17.94%)(c)     (3.77%)(c)
</TABLE>
    
 
   
*   During the period, certain fees were voluntarily reduced and/or reimbursed.
    If such voluntary fee reductions and/or reimbursements had not occurred, the
    ratios would have been as indicated.
    
   
(a) Period from commencement of operations.
    
   
(b) Not annualized.
    
   
(c) Annualized.
    
   
(d) The Money Market ProFund expense ratio includes the expense allocation of
    the Cash Management Portfolio Master Fund.
    
   
(e) The amount shown for a share outstanding throughout the period does not
    accord with the earned income or the change in aggregate gains and losses in
    the portfolio of securities during the period because of the timing of
    purchases of fund shares in relation to fluctuating market values during the
    period.
    
 
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                              FINANCIAL HIGHLIGHTS
    
 
   
    The following table presents per share financial information for the period
ended December 31, 1997 for the Service Class of each ProFund. The Financial
Highlights have been audited by Coopers & Lybrand LLP, independent accountants,
whose report on the financial statements of the ProFunds appears in the
ProFunds' Annual Report for the fiscal year ended December 31, 1997 (the "Annual
Report"). These statements should be read in conjunction with the "Report of
Independent Accountants" and the other financial statements and related notes
which are contained in the Annual Report. Copies of the Annual Report are
available upon request without charge by phoning (888) 776-3637.
    
 
   
                                 SERVICE SHARES
    
 
   
<TABLE>
<CAPTION>
                                                                                                          MONEY
                                BULL        ULTRABULL         BEAR        ULTRABEAR       ULTRAOTC        MARKET
                              PROFUND        PROFUND        PROFUND        PROFUND        PROFUND        PROFUND
                             12/2/97 TO    11/28/97 TO    12/31/97 TO    12/23/97 TO     12/2/97 TO    11/17/97 TO
                            12/31/97(A)    12/31/97(A)    12/31/97(A)    12/31/97(A)    12/31/97(A)    12/31/97(A)
<S>                         <C>            <C>            <C>            <C>            <C>            <C>
Net asset value, beginning
 of period................    $  10.00      $    10.00     $    10.00     $   10.00       $  10.00       $   1.00
                              --------      ----------     ----------     ---------       --------       --------
Income from investment
 operations:
 Net investment income
   (loss).................          --            0.01             --            --             --             --
 Net realized and
   unrealized gain (loss)
   on investments.........       (0.11)           0.28             --          0.35          (1.64)            --
                              --------      ----------     ----------     ---------       --------       --------
   Total from investment
     operations...........       (0.11)           0.29             --          0.35          (1.64)            --
                              --------      ----------     ----------     ---------       --------       --------
Distributions to
 shareholders from:
 Net investment income....          --              --             --            --             --             --
 Net realized gain on
   investments............          --              --             --            --             --             --
                              --------      ----------     ----------     ---------       --------       --------
 Total distributions to
   shareholders...........          --              --             --            --             --             --
                              --------      ----------     ----------     ---------       --------       --------
Net asset value, end of
 period...................    $   9.89      $    10.29     $    10.00     $   10.35       $   8.36       $   1.00
                              ========      ==========     ==========     =========       ========       ========
Total return..............      (1.10%)(b)       2.90%(b)       0.00%(b)      3.50%(b)     (16.40%)(b)      0.21%(b)
Ratios/Supplemental Data:
Net assets, end of
 period...................    $     10      $2,394,297     $       10     $      10       $663,984       $  2,510
Ratio of expenses to
 average net assets.......       1.33%(c)        1.33%(c)       0.00%(c)      1.33%(c)       1.75%(c)       1.83%(c)(d)
Ratio of net investment
 income (loss) to average
 net assets...............       0.00%(c)        1.69%(c)       0.00%(c)      0.00%(c)      (0.06%)(c)      2.53%(c)
Ratio of expenses to
 average net assets*......     424.48%(c)       13.69%(c)     326.97%(c)     33.39%(c)      23.42%(c)      10.52%(c)(d)
Ratio of net investment
 income (loss) to average
 net assets*..............    (424.48%)(c)     (10.67%)(c)    (326.97%)(c)    (33.39%)(c)    (21.73%)(c)     (6.16%)(c)
</TABLE>
    
 
   
*   During the period, certain fees were voluntarily reduced and/or reimbursed.
    If such voluntary fee reductions and/or reimbursements had not occurred, the
    ratios would have been as indicated.
    
   
(a) Period from commencement of operations.
    
   
(b) Not annualized.
    
   
(c) Annualized.
    
   
(d) The Money Market ProFund expense ratio includes the expense allocation of
    the Cash Management Portfolio Master Fund.
    
 
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PRO FUNDS LOGO
 
   
                                 SHAREHOLDERS'
    
                                     GUIDE
 
   
HOW TO INVEST IN THE PROFUNDS
    
 
    General
 
    The shares of each ProFund are offered at the net asset value per share next
computed after receipt of the investor's order. No sales charges are imposed on
initial or subsequent investments in a ProFund. See "General Information About
the Trust -- Determination of Net Asset Value".
 
    Minimum Investment
 
    The minimum initial investment in the ProFunds for investors who have
engaged a registered investment adviser with discretionary authority over the
shareholder's account is $5,000. For all other shareholder accounts ("Self-
Directed Accounts"), the minimum initial investment in the ProFunds is $15,000.
These minimums also apply to retirement plan accounts and are determined based
upon the total investment in all ProFunds. ProFunds, at its discretion, may
accept lesser amounts in certain circumstances. There is no minimum amount for
subsequent investments, other than those made pursuant to the automatic
investment plan, in a ProFund. ProFunds reserves the right to reject or refuse,
at ProFunds' discretion, any order for the purchase of a ProFund's shares in
whole or in part.
 
    How to Invest by Mail
 
    Fill out an application and make out a check payable to "ProFunds." Mail the
check along with the application to:
 
       ProFunds
       P.O. Box 182800
       Columbus, OH 43218-2800
 
    The net asset value of shares purchased by mail will be computed based upon
the price of shares next computed after the receipt of an investment by mail.
 
    How to Invest by Wire Transfer
 
    First, fill out an application and fax the completed application, along with
the request for a confirmation number to the ProFunds at (800) 782-4797. Once
you have received your confirmation number, you must then request that your bank
wire transfer the purchase amount to the applicable ProFund along with the
following instructions:
 
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    Request a wire transfer to:
 
       UMB BANK, N.A.
       Routing Number: ABA #101000695
       For Account of ProFunds
       DDA #9870857952
       YOUR NAME
       YOUR CONFIRMATION NUMBER
 
    After instructing your bank to transfer money by wire, call the ProFunds at
888-PRO-FNDS and inform the ProFunds as to the amount that you have transferred
and the name of the bank sending the transfer. Wire transfer requests may be
made between 8:00 AM and 9:00 PM Eastern Time. However, wire transfers must be
received by 3:30 PM Eastern Time to receive that day's net asset value. Wire
transfer requests received after 3:30 PM Eastern Time are deemed to be received
on the next business day of ProFunds and will be placed at the next determined
net asset value on the next business day. If the primary exchange or market on
which a ProFund transacts business closes early, the above cut-off time will be
thirty minutes prior to the close of such exchange or market. Your bank may
charge a fee for such services. Instructions, written or telephonic, given to
ProFunds for wire transfer requests do not constitute a purchase order until the
wire transfer has been received by ProFunds. ProFunds is not liable for any loss
incurred due to a wire transfer not having been received.
 
    Purchase Through Securities Dealers
 
    Investments in the ProFunds may be made through securities dealers who have
the responsibility to transmit orders promptly and who may charge a processing
fee.
 
HOW TO EXCHANGE SHARES OF THE PROFUNDS
 
    Shares of any ProFunds may be exchanged, without any charge, for shares of
the same class of any other ProFunds on the basis of the respective net asset
values of the shares involved. Exchanges may be made by letter or by telephone
at the address or numbers indicated on the cover of this Prospectus. TELEPHONE
REQUESTS FOR SHARE EXCHANGES MAY ONLY BE MADE BETWEEN 8:00 AM AND 3:50 PM AND
BETWEEN 4:30 PM AND 9:00 PM. Telephone requests for share exchanges will receive
the net asset value per share next determined. If the primary exchange or market
on which a ProFund transacts business closes early, the above cut-off time will
be fifteen minutes prior to the close of such exchange or market. The net asset
value of share exchange requests made by mail will be computed based upon the
price of shares next computed after the receipt of the request.
 
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PRO FUNDS LOGO
 
    Exchanges with respect to Self-Directed Accounts must be for at least $1,000
or 100% of the account value for the ProFund, whichever is less, from which the
transfer is made. See "Shareholders' Guide -- Special Information Regarding
Telephone Requests for Redemptions and Exchanges".
 
    To implement an exchange, shareholders must provide the following
information:
 
       - Name and telephone number;
       - Account name and number;
       - Taxpayer identification number;
       - Number of or percentage of shares or dollar value of shares to be
         exchanged;
       - The name of the ProFunds from which the exchange is to be made; and
       - The name of the ProFunds to which the exchange is to be made.
 
    The privilege to initiate exchange transactions by telephone will be made
available to ProFund shareholders automatically. Exchanges may only be made
between identically registered accounts. The exchange privilege is available
only in states where the exchange legally may be made and may be modified or
discontinued at any time. In addition, see "Shareholders' Guide -- Special
Information Regarding Written and Telephone Requests for Redemptions and
Exchanges" regarding instructions received by telephone.
 
HOW TO WITHDRAW MONEY (REDEEM SHARES)
 
    General
 
    An investor can withdraw all or any portion of his investment by redeeming
ProFund shares at the next determined net asset value per share after receipt of
the order. Withdrawals may be made by letter or by telephone at the address or
numbers indicated on the cover of this Prospectus. TELEPHONE REQUESTS FOR SHARE
REDEMPTIONS MAY ONLY BE MADE BETWEEN 8:00 AM AND 3:50 PM AND BETWEEN 4:30 PM AND
9:00 PM. Telephone requests for share redemptions will receive the net asset
value per share next determined. If the primary exchange or market on which a
ProFund transacts business closes early, the above cut-off time will be thirty
minutes prior to the close of such exchange or market. The net asset value of
share redemption requests made by mail will be computed based upon the price of
shares next computed after the receipt of the request.
 
    The privilege to initiate redemption transactions by telephone will be made
available to ProFund shareholders automatically. Redemptions from Self-Directed
Accounts must be for at least $1,000 or 100% of the account value for the
ProFund, whichever is less, from which the transfer is made.
 
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    Payment of the redemption proceeds will be made within seven days after the
ProFunds' receipt of the request for redemption. For investments that have been
made by check, payment on withdrawal requests will be delayed until the
ProFunds' transfer agent is reasonably satisfied that the purchase payment has
been collected by the ProFunds (which may require up to 15 business days). An
investor may avoid a delay in receiving redemption proceeds by purchasing shares
with a certified check.
 
    Wire of Withdrawals
 
    Shareholders may request payment by wire of withdrawal proceeds from a
ProFund. The ProFunds charge $15 for each wire transfer of redemption proceeds;
this charge may be waived at the discretion of the ProFunds.
 
    Draft Checks
 
    Investors may elect to redeem shares of the Money Market ProFund by draft
check (minimum check -- $500) made payable to the order of any person or
institution. Upon the ProFunds' receipt of a completed signature card, investors
will be supplied with draft checks which are drawn on the Money Market ProFund's
account. There is a $25 charge for each stop payment request on the draft
checks. Investors are subject to the same rules and regulations that banks apply
to checking accounts. A Money Market ProFund account may not be closed by draft
check. This option is not available to Individual Retirement Account ("IRA")
shareholders.
 
    Redemptions to Third Party or Other Address
 
    Telephone redemptions are sent only to the address of record of the
redeeming investor or to bank accounts specified by the redeeming investor in
his account application. If the investor desires payment of redemption proceeds
to a third party or to a location other than the investor's address of record or
a bank account specified in the investor's account application, this request
must be in writing, and the investor's signature must be guaranteed by a
commercial bank, a broker, dealer, municipal securities dealer, municipal
securities broker, government securities dealer, or government securities
broker, a credit union, a national securities exchange, registered securities
association, clearing agency, or a savings association.
 
SPECIAL INFORMATION REGARDING TELEPHONE REQUESTS FOR REDEMPTIONS AND EXCHANGES
 
    When acting on telephone instructions believed to be genuine, the ProFunds
will not be liable for any loss resulting from a fraudulent telephone
transaction request, and the investor will bear the risk of any such loss. The
ProFunds will
 
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PRO FUNDS LOGO
 
employ reasonable procedures to confirm that the telephone instructions are
genuine; and if the ProFunds do not employ such procedures, then the ProFunds
may be liable for any losses due to unauthorized or fraudulent instructions. The
ProFunds follow specific procedures for transactions initiated by telephone,
including, among others, requiring some form of personal identification prior to
acting upon instructions received by telephone, providing written confirmation
not later than 5 business days after such transaction and/or tape recording of
telephone instructions.
 
    Investors also should be aware that telephone redemptions or exchanges may
be difficult to implement in a timely manner during periods of significant
economic or market changes. If such conditions occur, redemption or exchange
orders can be made by mail. Telephone redemption and exchange privileges may be
terminated or modified by the ProFunds at any time.
 
HOW TO MAKE AUTOMATIC INVESTMENTS, EXCHANGES AND WITHDRAWALS
 
    Investors may also purchase and redeem ProFund shares by arranging
systematic monthly, bimonthly, quarterly or annual investments into the ProFunds
(the "Automatic Investment Plan"), and redemptions from the ProFunds (the
"Automatic Withdrawal Plan"). The minimum investment amounts are $1,000 per
transfer and minimum withdrawal amounts are $500 per transfer. These minimums
are waived for IRA shareholders 70 1/2 or older. Additionally, investors may
exchange, on a regular basis, shares of the Money Market ProFund for shares of
other ProFunds through ProFunds' Automatic Exchange Plan. For more information,
including terms and conditions, about automatic investment, exchange and
withdrawal features, please call the ProFunds at 888-PRO-FNDS.
 
DIVIDENDS AND DISTRIBUTIONS
 
    General
 
    All income dividends and capital gains distributions of each ProFund
automatically will be reinvested in additional shares of the ProFund at the net
asset value calculated on the ex-dividend date, unless an investor has requested
otherwise in writing. Dividends and distributions of a ProFund are taxable to
the shareholders of the ProFund, as discussed below under "Taxes," whether such
dividends and distributions are reinvested in additional shares of the ProFund
or received in cash. Statements of account will be sent to the ProFund
shareholders at least quarterly.
 
                                                                -----------
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    All ProFunds Except Money Market ProFund
 
    The ProFunds, other than the Money Market ProFund intend to distribute
annually any net investment income and net realized capital gains to
shareholders. The ProFunds may declare a special distribution for any of these
ProFunds if the ProFunds believe that such a distribution would be in the best
interests of its shareholders.
 
    Money Market ProFund
 
    Shares begin accruing dividends on the day the purchase order is received in
proper form and payment in the form of federal funds is received by BFSI, the
ProFunds' transfer agent, and continue to earn dividends through the day before
a redemption order for such shares is processed by BFSI. The Money Market
ProFund ordinarily (i) declares dividends of net investment income (and net
short-term capital gains, if any) for shares of the Money Market ProFund on a
daily basis and (ii) distributes such dividends to shareholders of the Money
Market ProFund on a monthly basis. Net realized capital gains will be
distributed annually. The Money Market ProFund's net investment income consists
of its share of the Portfolio's dividends and interest (including discount)
accrued on its securities, less applicable expenses. The Money Market ProFund,
however, may revise this dividend and distribution policy, postpone the payment
of dividends thereunder, or take any other action necessary with respect thereto
in order to facilitate, to the extent possible, the maintenance by the Money
Market ProFund of a constant net asset value per share of $1.00.
 
TAX-SHELTERED RETIREMENT PLANS
 
    ProFunds sponsors IRAs which enable individuals to establish their own
retirement program (including spousal IRAs, Rollover IRAs, SEP IRAs and Simple
IRAs). Fund-sponsored retirement plans are charged an annual $15.00 maintenance
fee and receive tax reporting services. In addition, investors in the following
retirement plans are eligible to invest in ProFunds:
 
                 - Keogh Accounts -- Defined Contribution Plans (Profit-Sharing
                   Plans)
                 - Keogh Accounts
                 - Money Purchase Plans
                 - Pension Plans
                 - Internal Revenue Code Section 403(b) Plans
 
    All ProFunds' IRA distribution requests must be made in writing to BFSI, the
ProFunds' transfer agent. Any additional deposits to the ProFunds must
distinguish the type and year of the contribution.
 
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PRO FUNDS LOGO
 
    For more information on ProFunds IRAs, or any other retirement plan, please
call the ProFunds at 888-PRO-FNDS. Shareholders are advised to consult a tax
adviser on ProFunds IRA contribution and withdrawal requirements and
restrictions.
 
MISCELLANEOUS
 
    Involuntary Redemptions of Small Accounts
 
    Because of the administrative expense of handling small accounts, the
ProFunds reserve the right to redeem involuntarily an investor's account,
including a retirement account, which falls below the applicable minimum
investment in total value in the ProFunds due to redemptions. In addition, both
a request for a partial redemption by an investor whose account balance is below
the minimum investment and a request for a partial redemption by an investor
that would bring the account balance below the minimum investment will be
treated as a request by the investor for a complete redemption of that account.
Investors holding shares in a retirement account should be aware that any
redemption from a retirement account may result in tax consequences including,
but not limited to, a 10% penalty on the amount withdrawn if the shareholder is
under the age of 59 1/2. Shareholders should consult their tax advisors about
such tax consequences. The ProFunds reserve the right to modify their minimum
investment requirements and the corresponding amounts below which involuntary
redemptions may be effected.
 
    Suspension of Redemptions
 
    The right of redemption may be suspended, or the date of payment postponed:
(i) for any period during which the New York Stock Exchange ("NYSE"), the
Federal Reserve Bank of New York, as appropriate, is closed (other than
customary weekend or holiday closings) or trading on the NYSE, as appropriate,
is restricted; (ii) for any period during which an emergency exists so that
disposal of a ProFund's investments or the determination of its net asset value
is not reasonably practicable; or (iii) for such other periods as the Securities
and Exchange Commission (the "Commission"), by order, may permit for protection
of the ProFunds' investors.
 
    "Undeliverable" or "Uncashed" Dividend Checks
 
    If you elect to receive distributions in cash and checks (1) are returned
and marked as "undeliverable" or (2) remain uncashed for six months, your cash
election will be changed automatically and your future dividend and capital
gains distributions will be reinvested in the ProFunds at the per share net
asset value determined as of the date of payment of the distribution. In
addition, any undeliverable checks or checks that remain uncashed for six months
will be
 
                                                                -----------
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canceled and will be reinvested in the ProFunds at the per share net asset value
determined as of the date of cancellation.
 
    Transaction Charges
 
    In addition to charges described elsewhere in this Prospectus, the ProFunds
also may make a charge of $25 for checks returned for insufficient or
uncollectible funds.
 
    No Certificates
 
    In the interest of economy and convenience, physical certificates
representing a ProFund's shares are not issued. Shares of each ProFund are
recorded on a register by BFSI.
 
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PRO FUNDS LOGO
 
                                    SPECIAL
                                 CONSIDERATIONS
 
    The ProFunds present certain risks, some not typically associated with
mutual funds. Shareholders should consider the special factors discussed below
that are associated with the investment policies of the ProFunds in determining
the appropriateness of investing in the ProFunds.
 
TRACKING ERROR
 
    While the ProFunds do not expect that their returns over a year will deviate
adversely from their respective benchmarks by more than ten percent, several
factors may affect their ability to achieve this correlation. Among these
factors are: (1) ProFund expenses, including brokerage (which may be increased
by high portfolio turnover) and the cost of the investment techniques employed
by the ProFunds; (2) less than all of the securities in the benchmark being held
by a ProFund and securities not included in the benchmark being held by a
ProFund; (3) an imperfect correlation between the performance of instruments
held by a ProFund, such as futures contracts and options, and the performance of
the underlying securities in the cash market; (4) bid-ask spreads (the effect of
which may be increased by portfolio turnover); (5) holding instruments traded in
a market that has become illiquid or disrupted; (6) ProFund share prices being
rounded to the nearest cent; (7) changes to the benchmark index that are not
disseminated in advance; (8) the need to conform a ProFund's portfolio holdings
to comply with investment restrictions or policies or regulatory or tax law
requirements, and (9) early and unanticipated closings of the markets on which
the holdings of a ProFund trade, resulting in the inability of the ProFund to
execute intended portfolio transactions. While a close correlation of any
ProFund to its benchmark may be achieved on any single trading day, over time
the cumulative percentage increase or decrease in the net asset value of the
shares of a ProFund may diverge significantly from the cumulative percentage
decrease or increase in the benchmark due to a compounding effect.
 
AGGRESSIVE INVESTMENT TECHNIQUES
 
    Each of the ProFunds (other than the Money Market ProFund) may engage in
certain aggressive investment techniques which may include engaging in short
sales and transactions in futures contracts and options on securities,
securities indexes, and futures contracts. These ProFunds expect that they will
primarily use these techniques in seeking to achieve their objectives and that a
significant portion (up to 100%) of the assets of these ProFunds will be held in
liquid
 
                                                                -----------
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instruments in a segregated account by these ProFunds as "cover" for these
investment techniques.
 
    Participation in the options or futures markets by a ProFund involves
distinct investment risks and transaction costs. Risks inherent in the use of
options, futures contracts, and options on futures contracts include: (1)
adverse changes in the value of such instruments; (2) imperfect correlation
between the price of options and futures contracts and options thereon and
movements in the price of the underlying securities, index, or futures
contracts; (3) the fact that the skills needed to use these strategies are
different from those needed to select portfolio securities; and (4) the possible
absence of a liquid secondary market for any particular instrument at any time.
For further information regarding these investment techniques, see "Investment
Policies and Techniques."
 
LEVERAGE
 
    The UltraBull ProFund and the UltraBear ProFund intend to regularly use
leveraged investment techniques in pursuing their investment objectives.
Utilization of leveraging involves special risks and should be considered to be
speculative. Leverage exists when a ProFund achieves the right to a return on a
capital base that exceeds the amount the ProFund has invested. Leverage creates
the potential for greater gains to shareholders of these ProFunds during
favorable market conditions and the risk of magnified losses during adverse
market conditions. Leverage should cause higher volatility of the net asset
values of these ProFunds' shares. Leverage may involve the creation of a
liability that does not entail any interest costs or the creation of a liability
that requires the ProFund to pay interest which would decrease the ProFund's
total return to shareholders. If these ProFunds achieve their investment
objectives, during adverse market conditions, shareholders should experience a
loss of approximately twice the amount they would have incurred had these
ProFunds not been leveraged.
 
NON-DIVERSIFIED STATUS
 
    Each non-money market ProFund is a "non-diversified" series. A non-money
market ProFund is considered "non-diversified" because a relatively high
percentage of the ProFund's assets may be invested in the securities of a
limited number of issuers, primarily within the same economic sector. That
ProFund's portfolio securities, therefore, may be more susceptible to any single
economic, political, or regulatory occurrence than the portfolio securities of a
more diversified investment company. A ProFund's classification as a
"non-diversified" in-
 
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vestment company means that the proportion of the ProFund's assets that may be
invested in the securities of a single issuer is not limited by the Investment
Company Act of 1940 (the "1940 Act"). Each ProFund, however, intends to seek to
qualify as a "regulated investment company" for purposes of the Internal Revenue
Code, which imposes diversification requirements on these ProFunds that are less
restrictive than the requirements applicable to the "diversified" investment
companies under the 1940 Act.
 
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                                   INVESTMENT
                                   OBJECTIVES
 
GENERAL
 
    The ProFunds may be used by professional money managers and investors as
part of an asset-allocation or market-timing investment strategy or to create
specified investment exposure to a particular segment of the securities market
or to hedge an existing investment portfolio. Except for the Money Market
ProFund, each ProFund seeks investment results that correspond each day to a
specified benchmark. The ProFunds may be used independently or in combination
with each other as part of an overall investment strategy. Additional ProFunds
may be created from time to time.
 
    Fundamental securities analysis is not generally used by the Advisor in
seeking to correlate with the respective benchmarks. Rather, the Advisor
primarily uses statistical and quantitative analysis to determine the
investments a ProFund makes and techniques it employs. While the Advisor
attempts to minimize any "tracking error" (that statistical measure of the
difference between the investment results of a ProFund and the performance of
its benchmark), certain factors will tend to cause a ProFund's investment
results to vary from a perfect correlation to its benchmark. The ProFunds,
however, do not expect that their total returns will vary adversely from their
respective current benchmarks by more than ten percent over the course of a
year. See "Special Considerations."
 
    It is the policy of the non-money-market ProFunds to pursue their investment
objectives of correlating with their benchmarks regardless of market conditions,
to remain nearly fully invested and not to take defensive positions.
 
BENCHMARKS OF THE PROFUNDS
 
    The S&P 500 Index. Standard & Poor's chooses the 500 stocks composing the
S&P 500 Index on the basis of market values and industry diversification. Most
of the stocks in the S&P 500 Index are issued by the 500 largest companies, in
terms of the aggregate market value of their outstanding stock, and such
companies are generally listed on the NYSE. Additional stocks that are not among
the 500 largest market value stocks are included in the S&P 500 Index for
diversification purposes. The S&P 500 Index as referred to in this Prospectus
does not include the effect of dividends paid on the stock of the companies
included in the index. Standard & Poor's will not be a sponsor of, or in any
other way be affiliated with, the ProFunds.
 
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    The NASDAQ 100 Index. The NASDAQ 100 Index includes 100 of the largest
non-financial domestic companies listed on the NASDAQ National Market tier of
The NASDAQ Stock Market. Launched in January 1985, each security in the NASDAQ
100 Index is proportionately represented by its market capitalization in
relation to the total market value of the NASDAQ 100 Index. The NASDAQ 100 Index
reflects NASDAQ's largest growth companies across major industry groups. All
index components have a minimum market capitalization of $500 million, and an
average daily trading volume of at least 100,000 shares. NASDAQ will not be a
sponsor of, or in any other way be affiliated with, the ProFunds.
 
THE BULL PROFUND AND ULTRABULL PROFUND
 
    The investment objective of the Bull ProFund is to provide investment
returns that correspond to the performance of the S&P 500 Index. The investment
objective of the UltraBull ProFund is to provide investment returns that
correspond to 200% of the performance of the S&P 500 Index. These ProFunds seek
to achieve this correlation on each trading day. Under their investment
objectives, the UltraBull ProFund should produce greater gains to investors when
the S&P 500 Index rises and greater losses when the S&P 500 Index declines over
the corresponding gain or loss of the Bull ProFund.
 
    In attempting to achieve their objectives, the Bull ProFund and the
UltraBull ProFund expect that a substantial portion of their respective assets
usually will be devoted to employing certain specialized investment techniques.
These techniques include engaging in certain transactions in stock index futures
contracts, options on stock index futures contracts, and options on securities
and stock indexes. The amount of any gain or loss on an investment technique may
be affected by any premium or amounts in lieu of dividends or interest income
the ProFund pays or receives as the result of the transaction. These ProFunds
may also invest in shares of individual securities which are expected to track
the S&P 500 Index.
 
THE BEAR PROFUND AND ULTRABEAR PROFUND
 
    The Bear ProFund and the UltraBear ProFund are designed to allow investors
to speculate on anticipated decreases in the S&P 500 Index or to hedge an
existing portfolio of securities or mutual fund shares. The Bear ProFund's
investment objective is to provide investment results that will inversely
correlate to the performance of the S&P 500 Index. The UltraBear ProFund's
investment objective is to provide investment results that will inversely
correlate to 200% of the performance of the S&P 500 Index. These ProFunds seek
to achieve this inverse correlation on each trading day.
 
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    If the Bear ProFund achieved a perfect inverse correlation for any single
trading day, the net asset value of the shares of the Bear ProFund would
increase for that day in direct proportion to any decrease in the level of the
S&P 500 Index. Conversely, the net asset value of the shares of the Bear ProFund
would decrease for that day in direct proportion to any increase in the level of
the S&P 500 Index for that day. The net asset value of the UltraBear ProFund on
the same days would increase or decrease approximately twice as much as the
price change of the Bear ProFund.
 
    For example, if the S&P 500 Index were to decrease by 1% on a particular
day, investors in the Bear ProFund should experience a gain in net asset value
of approximately 1% for that day. The UltraBear ProFund should realize an
increase of approximately 2% of its net asset value on the same day. Conversely,
if the S&P 500 Index were to increase by 1% by the close of business on a
particular trading day, investors in the Bear ProFund and the UltraBear ProFund
would experience a loss in net asset value of approximately 1% and 2%,
respectively.
 
    Due to the nature of the Bear ProFund and the UltraBear ProFund, investors
in these ProFunds could experience substantial losses during sustained periods
of rising equity prices, with losses to investors in the UltraBear ProFund
approximately twice as large as the losses to investors in the Bear ProFund.
 
    In pursuing its investment objectives, the Bear ProFund and the UltraBear
ProFund generally do not invest in traditional securities, such as common stock
of operating companies. Rather, the Bear ProFund and the UltraBear ProFund
employ certain investment techniques, including engaging in short sales and in
certain transactions in stock index futures contracts, options on stock index
futures contracts, and options on securities and stock indexes.
 
    Under these techniques, the Bear ProFund and the UltraBear ProFund will
generally incur a loss if the price of the underlying security or index
increases between the date of the employment of the technique and the date on
which the ProFund terminates the position. These ProFunds will generally realize
a gain if the underlying security or index declines in price between those
dates. The amount of any gain or loss on an investment technique may be affected
by any premium or amounts in lieu of dividends or interest that the ProFund pays
or receives as the result of the transaction.
 
THE ULTRAOTC PROFUND
 
    The investment objective of the UltraOTC ProFund is to provide investment
results that correspond to 200% of the performance of the NASDAQ 100 Index.
 
    The UltraOTC ProFund does not intend to hold the 100 securities included in
the NASDAQ 100 Index. Instead, the UltraOTC ProFund intends to engage in
 
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transactions on stock index futures contracts, options on stock index futures
contracts, and options on securities and stock indexes. As a nonfundamental
policy, the UltraOTC ProFund will invest, under normal conditions, at least 65%
of its total assets in securities traded on the over-the-counter markets and
instruments with values that are representative of such securities such as
futures and option contracts in such securities or indices.
 
    Companies whose securities are traded on the over-the-counter ("OTC")
markets generally have smaller market capitalization or are newer companies than
those listed on the NYSE or the American Stock Exchange (the "AMEX"). OTC
companies often have limited product lines, or relatively new products or
services, and may lack established markets, depth of experienced management, or
financial resources and the ability to generate funds. The securities of these
companies may have limited marketability and may be more volatile in price than
securities of larger capitalized or more well-known companies. Among the reasons
for the greater price volatility of securities of certain smaller OTC companies
are the less certain growth prospects of comparably smaller firms, the lower
degree of liquidity in the OTC markets for such securities, and the greater
sensitivity of smaller capitalization companies to changing economic conditions
than larger capitalization, exchange-traded securities. Conversely, because many
of these OTC securities may be overlooked by investors and undervalued in the
marketplace, there is potential for significant capital appreciation.
 
THE MONEY MARKET PROFUND
 
    The Money Market ProFund seeks a high level of current income consistent
with liquidity and preservation of capital through investment in high quality
money market instruments. The Money Market ProFund offers investors a convenient
means of diversifying their holdings of short-term securities while relieving
those investors of the administrative burdens typically associated with
purchasing and holding these instruments, such as coordinating maturities and
reinvestments, providing for safekeeping and maintaining detailed records. High
quality, short-term instruments may result in a lower yield than instruments
with a lower quality and/or a longer term.
 
    The Money Market ProFund seeks to achieve its investment objective by
investing the assets of the Money Market ProFund in the Portfolio, which has the
same investment objective as the Money Market ProFund and is managed by Bankers
Trust, 280 Park Avenue, New York, New York. There can be no assurances that the
investment objective of either the Money Market ProFund or the Portfolio will be
achieved. The investment objective of the Money Market ProFund and the Portfolio
is a fundamental policy and may not be changed without the approval of the Money
Market ProFund's shareholders or the
 
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Portfolio's investors, respectively. See "Special Information Concerning Master-
Feeder Fund Structure" herein.
 
    The Portfolio invests in money market instruments, including corporate debt
obligations, U.S. government securities, bank obligations and repurchase
agreements. See "Investment Policies and Techniques -- Cash Management
Portfolio" for a discussion of the Portfolio's investment policies. The
Portfolio follows practices which are designed to enable the Money Market
ProFund to maintain a $1.00 share price: limiting average maturity of the
securities held by the Portfolio to 90 days or less; buying securities which
mature in 397 days or less; and buying only high quality securities with minimal
credit risks. Of course, the Money Market ProFund cannot guarantee a $1.00 share
price, but these practices help to minimize any price fluctuations that might
result from rising or declining interest rates. While the Portfolio invests in
high quality money market securities, you should be aware that your investment
is not without risk. All money market instruments can change in value when
interest rates or an issuer's creditworthiness changes.
 
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                              INVESTMENT POLICIES
                                 AND TECHNIQUES
 
FUTURES CONTRACTS AND RELATED OPTIONS
 
    The ProFunds (other than the Money Market ProFund) may purchase or sell
stock index futures contracts and options thereon as a substitute for a
comparable market position in the underlying securities. The ProFunds anticipate
that they will primarily engage in transactions in futures contracts and related
options on the CME.
 
    A futures contract obligates the seller to deliver (and the purchaser to
take delivery of) the specified commodity on the expiration date of the
contract. A stock index futures contract obligates the seller to deliver (and
the purchaser to take) an amount of cash equal to a specific dollar amount
multiplied by the difference between the value of a specific stock index at the
close of the last trading day of the contract and the price at which the
agreement is made. No physical delivery of the underlying stocks in the index is
made.
 
    When a ProFund purchases a put or call option on a futures contract, the
ProFund pays a premium for the right to sell or purchase the underlying futures
contract for a specified price upon exercise at any time during the option
period. By writing (selling) a put or call option on a futures contract, a
ProFund receives a premium in return for granting to the purchaser of the option
the right to sell to or buy from the ProFund the underlying futures contract for
a specified price upon exercise at any time during the option period.
 
    Whether a ProFund realizes a gain or loss from futures activities depends
generally upon movements in the underlying commodity. The extent of the
ProFund's loss from an unhedged short position in futures contracts or from
writing options on futures contracts is potentially unlimited. The ProFunds may
engage in related closing transactions with respect to options on futures
contracts. The ProFunds will only engage in transactions in futures contracts
and options thereupon that are traded on a United States exchange or board of
trade.
 
    When a ProFund purchases or sells a stock index futures contract, or sells
an option thereon, the ProFund "covers" its position. To cover its position, a
ProFund may enter into an offsetting position or maintain with its custodian
bank (and mark-to-market on a daily basis) a segregated account consisting of
liquid instruments that, when added to any amounts deposited with a futures
commission merchant as margin, are equal to the market value of the futures
contract or otherwise "cover" its position.
 
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    Although the ProFunds intend to sell futures contracts only if there is an
active market for such contracts, no assurance can be given that a liquid market
will exist for any particular contract at any particular time. Many futures
exchanges and boards of trade limit the amount of fluctuation permitted in
futures contract prices during a single trading day. Once the daily limit has
been reached in a particular contract, no trades may be made that day at a price
beyond that limit or trading may be suspended for specified periods during the
day. Futures contract prices could move to the limit for several consecutive
trading days with little or no trading, thereby preventing prompt liquidation of
futures positions and potentially subjecting a ProFund to substantial losses. If
trading is not possible, or if a ProFund determines not to close a futures
position in anticipation of adverse price movements, the ProFund will be
required to make daily cash payments of variation margin. The risk that the
ProFund will be unable to close out a futures position will be minimized by
entering into such transactions on a national exchange with an active and liquid
secondary market.
 
INDEX OPTIONS TRANSACTIONS
 
    The ProFunds (other than the Money Market ProFund) may purchase and write
options on stock indexes to create investment exposure consistent with their
investment objectives, hedge or limit the exposure of their positions and to
create synthetic money market positions. See "Taxes" herein.
 
    A stock index fluctuates with changes in the market values of the stocks
included in the index. Options on stock indexes give the holder the right to
receive an amount of cash upon exercise of the option. Receipt of this cash
amount will depend upon the closing level of the stock index upon which the
option is based being greater than (in the case of a call) or less than (in the
case of a put) the exercise price of the option. The amount of cash received, if
any, will be the difference between the closing price of the index and the
exercise price of the option, multiplied by a specified dollar multiple. The
writer (seller) of the option is obligated, in return for the premiums received
from the purchaser of the option, to make delivery of this amount to the
purchaser. All settlements of index options transactions are in cash.
 
    Index options are subject to substantial risks, including the risk of
imperfect correlation between the option price and the value of the underlying
securities composing the stock index selected and the risk that there might not
be a liquid secondary market for the option. Because the value of an index
option depends upon movements in the level of the index rather than the price of
a particular stock, whether a ProFund will realize a gain or loss from the
purchase or writing (sale) of options on an index depends upon movements in the
level of stock prices in the stock market generally or, in the case of certain
indexes, in an
 
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industry or market segment, rather than upon movements in the price of a
particular stock. Whether a ProFund will realize a profit or loss by the use of
options on stock indexes will depend on movements in the direction of the stock
market generally or of a particular industry or market segment. This requires
different skills and techniques than are required for predicting changes in the
price of individual stocks. A ProFund will not enter into an option position
that exposes the ProFund to an obligation to another party, unless the ProFund
either (i) owns an offsetting position in securities or other options and/or
(ii) maintains with the ProFund's custodian bank liquid instruments that, when
added to the premiums deposited with respect to the option, are equal to the
market value of the underlying stock index not otherwise covered.
 
OPTIONS ON SECURITIES
 
    The ProFunds (other than the Money Market ProFund), may buy options and
write (sell) options on securities. By buying a call option, a ProFund has the
right, in return for a premium paid during the term of the option, to buy the
securities underlying the option at the exercise price. By writing (selling) a
call option and receiving a premium, a ProFund becomes obligated during the term
of the option to deliver the securities underlying the option at the exercise
price if the option is exercised. By buying a put option, a ProFund has the
right, in return for a premium paid during the term of the option, to sell the
securities underlying the option at the exercise price. By writing a put option,
a ProFund becomes obligated during the term of the option to purchase the
securities underlying the option at the exercise price. Options on securities
written (sold) by the ProFunds will be conducted on recognized securities
exchanges. A ProFund will not write options on securities unless it covers its
position as described under "Index Options Transactions".
 
    A ProFund will realize a gain (or a loss) on a call or a put option
previously purchased by the ProFund if the premium, less commission costs,
received by the ProFund on the sale of the call or the put option to close the
transaction is greater (or less) than the premium, plus commission costs, paid
by the ProFund to purchase the call or the put option. If a put or a call option
which the ProFund has purchased expires out-of-the-money (i.e., the exercise
price of the option is less than the current market value of the underlying
security), the option will become worthless on the expiration date, and the
ProFund will realize a loss in the amount of the premium paid, plus commission
costs.
 
    Although certain securities exchanges attempt to provide continuously liquid
markets in which holders and writers of options can close out their positions at
any time prior to the expiration of the option, no assurance can be given that a
market will exist at all times for all outstanding options purchased or sold by
a
 
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ProFund. If an options market were to become unavailable, the ProFund would be
unable to realize its profits or limit its losses until the ProFund could
exercise options it holds, and the ProFund would remain obligated until options
it wrote were exercised or expired.
 
    Because option premiums paid or received by a ProFund are small in relation
to the market value of the investments underlying the options, buying and
selling put and call options can be more speculative than investing directly in
common stocks.
 
SHORT SALES
 
    The Bear ProFund and the UltraBear ProFund may engage in short sales
transactions under which the ProFund sells a security it does not own. To
complete such a transaction, the ProFund must borrow the security to make
delivery to the buyer. The ProFund then is obligated to replace the security
borrowed by purchasing the security at the market price at the time of
replacement. The price at such time may be more or less than the price at which
the security was sold by the ProFund. Until the security is replaced, the
ProFund is required to pay to the lender amounts equal to any dividends or
interest which accrue during the period of the loan. To borrow the security, the
ProFund also may be required to pay a premium, which would increase the cost of
the security sold. The proceeds of the short sale will be retained by the
broker, to the extent necessary to meet the margin requirements, until the short
position is closed out.
 
    Until the ProFund closes its short position or replaces the borrowed
security, the ProFund will cover its position with an offsetting position or
maintain a segregated account containing cash or liquid instruments at such a
level that the amount deposited in the account plus the amount deposited with
the broker as collateral will equal the current value of the security sold
short.
 
U.S. GOVERNMENT SECURITIES
 
    The ProFunds may invest in U.S. government securities in pursuit of their
investment objectives, as "cover" for the investment techniques these ProFunds
employ, or for liquidity purposes.
 
    Yields on U.S. government securities are dependent on a variety of factors,
including the general conditions of the money and bond markets, the size of a
particular offering, and the maturity of the obligation. Debt securities with
longer maturities tend to produce higher yields and are generally subject to
potentially greater capital appreciation and depreciation than obligations with
shorter maturities and lower yields. The market value of U.S. government
securities generally varies inversely with changes in market interest rates. An
increase in interest
 
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rates, therefore, would generally reduce the market value of a ProFund's
portfolio investments in U.S. government securities, while a decline in interest
rates would generally increase the market value of a ProFund's portfolio
investments in these securities.
 
    Some obligations issued or guaranteed by agencies or instrumentalities of
the U.S. government are backed by the full faith and credit of the U.S.
Treasury. Such agencies and instrumentalities may borrow funds from the U.S.
Treasury. However, no assurances can be given that the U.S. government will
provide such financial support to the obligations of the other U.S. government
agencies or instrumentalities in which a ProFund invests, since the U.S.
government is not obligated to do so. These other agencies and instrumentalities
are supported by either the issuer's right to borrow, under certain
circumstances, an amount limited to a specific line of credit from the U.S.
Treasury, the discretionary authority of the U.S. government to purchase certain
obligations of an agency or instrumentality, or the credit of the agency or
instrumentality itself.
 
REPURCHASE AGREEMENTS
 
    Under a repurchase agreement, a ProFund purchases a debt security and
simultaneously agrees to sell the security back to the seller at a mutually
agreed-upon future price and date, normally one day or a few days later. The
resale price is greater than the purchase price, reflecting an agreed-upon
market interest rate during the purchaser's holding period. While the maturities
of the underlying securities in repurchase transactions may be more than one
year, the term of each repurchase agreement will always be less than one year. A
ProFund will enter into repurchase agreements only with member banks of the
Federal Reserve System or primary dealers of U.S. government securities. The
Advisor and, with respect to the Portfolio, Bankers Trust, will monitor the
creditworthiness of each of the firms which is a party to a repurchase agreement
with any of the ProFunds. In the event of a default or bankruptcy by the seller,
the ProFund will liquidate those securities (whose market value, including
accrued interest, must be at least equal to 100% of the dollar amount invested
by the ProFund in each repurchase agreement) held under the applicable
repurchase agreement, which securities constitute collateral for the seller's
obligation to pay. However, liquidation could involve costs or delays and, to
the extent proceeds from the sales of these securities were less than the
agreed-upon repurchase price, the ProFund would suffer a loss. A ProFund also
may experience difficulties and incur certain costs in exercising its rights to
the collateral and may lose the interest the ProFund expected to receive under
the repurchase agreement. Repurchase agreements usually are for short periods,
such as one week or less, but may be longer. It is the current policy of the
ProFunds to treat repurchase agreements that do not
 
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mature within seven days (or which may not be terminated within seven
calendar days upon notice by the ProFund) as illiquid for the purposes of their
investment policies.
 
CASH RESERVES
 
    As a cash reserve, for liquidity purposes, or as "cover" for positions it
has taken, each ProFund may temporarily invest all or part of the ProFund's
assets in cash or cash equivalents, which include, but are not limited to,
short-term money market instruments, U.S. government securities, certificates of
deposit, bankers acceptances, or repurchase agreements secured by U.S.
government securities.
 
TRANSACTION EXPENSES
 
    The ProFunds anticipate that their investors, as part of an asset-allocation
or market-timing investment strategy, will frequently exchange their shares of a
particular ProFund for shares in other ProFunds pursuant to the exchange policy
(see "How to Exchange Shares of the ProFunds"), which would cause the ProFunds
to experience high portfolio turnover. A higher portfolio turnover rate would
likely involve correspondingly greater brokerage commissions and transaction and
other expenses which would be borne by the ProFunds. In addition, a ProFund's
portfolio turnover level may adversely affect the ability of the ProFund to
achieve its investment objective. Pursuant to the formula prescribed by the
Commission, the portfolio turnover rate for each ProFund is calculated without
regard to instruments, including options and futures contracts, having a
maturity of less than one year. The Bull ProFund, the UltraBull ProFund, the
Bear ProFund and the UltraBear ProFund typically hold most of their investments
in short-term options and futures contracts which are excluded for purposes of
computing portfolio turnover. Therefore, based on the Commission's portfolio
turnover formula, each of these ProFunds expects a portfolio turnover rate of
approximately 0%.
 
OTHER INVESTMENT POLICIES
 
    The ProFunds also may engage in certain other investment practices described
below. However, none of the ProFunds presently intends to invest more than 5% of
the ProFund's net assets in any of these practices. Each of the ProFunds may
purchase securities on a when-issued or delayed-delivery basis, and also may
lend portfolio securities to brokers, dealers, and financial institutions. Each
ProFund (other than the Money Market ProFund) may borrow money for investment
purposes or invest in illiquid securities. Each of the ProFunds also may invest
in the securities of other investment companies to the extent that such an
investment would be consistent with the requirements of the 1940 Act.
 
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CASH MANAGEMENT PORTFOLIO
    
 
    Since the investment characteristics of the Money Market ProFund will
correspond directly to those of the Portfolio, set forth below is a discussion
of the various investments and investment policies of the Portfolio. Additional
information about the investment policies of the Portfolio appears in the SAI.
 
   
    The Portfolio, in pursuing its investment objective, will comply with Rule
2a-7 under the 1940 Act ("Rule 2a-7"). Thus, descriptions of investment
techniques and portfolio instruments are qualified by the provisions and
limitations of Rule 2a-7.
    
 
    The Portfolio will attempt to achieve its investment objective by investing
in the following money market instruments:
 
   
    Obligations of Banks and Other Financial Institutions. The Portfolio may
invest in U.S. dollar-denominated fixed rate or variable rate obligations of
U.S. or foreign financial institutions, including banks, which are rated in the
highest short-term rating category by any two nationally recognized statistical
rating organizations ("NRSROs") (or one NRSRO if that NRSRO is the only such
NRSRO which rates such obligations) or, if not so rated, are believed by Bankers
Trust, acting under the supervision of the Board of Trustees of the Portfolio,
to be of comparable quality. Obligations of domestic and foreign financial
institutions in which the Portfolio may invest include, but are not limited to,
certificates of deposit, bankers' acceptances, bank time deposits, commercial
paper, and other U.S. dollar-denominated instruments issued or supported by the
credit of U.S. or foreign financial institutions, including banks.
    
 
   
    If Bankers Trust, acting under the supervision of the Board of Trustees of
the Portfolio, deems the instruments to present minimal credit risk, the
Portfolio may invest in obligations of foreign banks or foreign branches and
subsidiaries of U.S. and foreign financial institutions, including banks.
Investments in these obligations may entail risks that are different from those
of investments in obligations of U.S. financial institutions, including banks,
because of differences in political, regulatory and economic systems and
conditions. These risks include future political and economic developments,
currency blockage, the possible imposition of withholding taxes on interest
payments, differing reserve requirements, reporting and recordkeepng
requirements and accounting standards, possible seizure or nationalization of
deposits, difficulty or inability of pursuing legal remedies and obtaining
judgments in foreign courts, possible establishment of exchange controls or the
adoption of other foreign governmental restrictions that might affect adversely
the payment of principal and interest on financial institution obligations.
Under normal market conditions, the Portfolio will invest more
    
 
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than 25% of its assets in the bank and other financial institution obligations
described above. The Portfolio's concentration of its investments in the
obligations of banks and other financial institutions will cause the Portfolio
to be subject to the risks peculiar to these industries to a greater extent than
if its investments were not so concentrated.
    
 
   
    Commercial Paper. The Portfolio may invest in fixed rate or variable rate
commercial paper, issued by U.S. and foreign entities. Commercial paper when
purchased by the Portfolio must be rated in the highest short-term rating
category by any two NRSROs (or one NRSRO if that NRSRO is the only such NRSRO
which rates such security) or, if not rated, must be believed by Bankers Trust,
acting under the supervision of the Board of Trustees of the Portfolio, to be of
comparable quality. Any commercial paper issued by a foreign entity and
purchased by the Portfolio must be U.S. dollar-denominated and must not be
subject to foreign withholding tax at the time of purchase. Investing in foreign
commercial paper generally involves risks similar to those described above
relating to obligations of foreign banks or foreign branches and subsidiaries of
U.S. and foreign banks and other financial institutions.
    
 
   
    Variable Rate Master Demand Notes. Variable rate master demand notes are
unsecured instruments that permit the indebtedness thereunder to vary and
provide for periodic adjustments in the interest rate. Because variable rate
master demand notes are direct lending arrangements between the Portfolio and
the issuer, they are not ordinarily traded. Although no active secondary market
may exist for these notes, the Portfolio will purchase only those notes under
which it may demand and receive payment on principal and accrued interest daily
or may resell the note to a third party. While the notes are not typically rated
by credit rating agencies, issuers of variable rate master demand notes must
satisfy Bankers Trust, acting under the supervision of the Board of Trustees of
the Portfolio, that the same criteria as set forth above for issuers of
commercial paper are met. In the event an issuer of a variable rate master
demand note defaulted on its payment obligation, the Portfolio might be unable
to dispose of the note because of the absence of a secondary market and could,
for this or other reasons, suffer a loss to the full extent of the default. The
face maturities of variable rate notes subject to a demand feature may exceed
397 days in certain circumstances. (See "Portfolio Quality and Maturity"
herein.)
    
 
   
    U.S. Government Obligations. The Portfolio may invest in obligations issued
and guaranteed by the U.S. Treasury or by agencies or instrumentalities of the
U.S. government. See "Investment Policies and Techniques -- U.S. Government
Securities" herein.
    
 
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    Other Debt Obligations. The Portfolio may invest in deposits, bonds, notes
and debentures that at the time of purchase have, or are comparable in priority
and security to other securities of such issuer which have, outstanding short-
term ratings meeting the above short-term rating requirements, or if there are
no such short-term ratings, are determined by Bankers Trust, acting under the
supervision of the Board of Trustees of the Portfolio, to be of comparable
quality and are rated in the top three highest long-term rating categories by
the NRSROs rating such security.
    
 
   
    Asset-Backed Securities. The Portfolio may also invest in securities
generally referred to as asset-backed securities, which directly or indirectly
represent a participation interest in, or are secured by and payable from, a
stream of payments generated by particular assets, such as motor vehicle or
credit card receivables. Asset-backed securities may provide periodic payments
that consist of interest and/or principal payments. Consequently, the life of an
asset-backed security varies with the prepayment and loss experience of the
underlying assets.
    
 
   
    Synthetic Asset-Backed Securities. The Portfolio may also invest in
securities generally referred to as synthetic asset-backed securities, which are
another form of asset-backed securities. While a variety of synthetic structures
exist, all involve trusts and partnerships that, in effect, convert long-term
fixed rate bonds into variable or floating rate demand securities. For example,
one or two long-term, high quality, fixed rate bonds of a single issuer (the
"core" securities) are deposited in a trust by a sponsor. Interests in the trust
may be distributed through an offering of securities to the public registered
under the 1933 Act (the "Act"), or through an offering exempt from the Act's
registration requirements, such as a "private placement." Holders of interests
in the trust receive interest at the current short-term market rate and the
sponsor receives the difference (after administrative expenses) between the
current market interest rate and the long-term rate paid by the core securities.
An affiliate of the sponsor or a third-party (usually a bank) issues a
conditional demand feature permitting holders to recover principal at par within
a specified period. The demand features are conditional to address tax related
concerns.
    
 
   
    Repurchase Agreements. The Portfolio may engage in repurchase agreement
transactions with bank and governmental securities dealers approved by the
Portfolio's Board of Trustees. Bankers Trust, acting under the supervision of
the Board of Trustees of the Portfolio, reviews the creditworthiness of those
banks and dealers with which the Portfolio enters into repurchase agreements and
monitors on an ongoing basis the value of the securities subject to repurchase
agreements to ensure that the value is maintained at the required level. See
"Investment Policies and Techniques -- Repurchase Agreements" herein.
    
 
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    Reverse Repurchase Agreement. The Portfolio may enter into reverse
repurchase agreements. See "Investment Objectives and Policies" in the SAI for a
more detailed description of reverse repurchase agreements.
 
   
    When-Issued and Delayed Delivery Securities. To secure prices deemed
advantageous at a particular time, the Portfolio may purchase securities on a
when-issued or delayed delivery basis, in which case delivery of the securities
occurs beyond the normal settlement period; payment for or delivery of the
securities occurs beyond the normal settlement period; and payment for or
delivery of the securities would be made at the same time as the reciprocal
delivery or payment by the other party to the transaction. The Portfolio will
enter into when-issued or delayed delivery transactions for the purpose of
acquiring securities and not for the purpose of leverage. When-issued securities
purchased by the Portfolio may include securities purchased on a "when, as and
if issued" basis under which the issuance of the securities depends on the
occurrence of a subsequent event.
    
 
   
    Securities purchased on a when-issued or delayed delivery basis may expose
the Portfolio to risk because the securities may experience fluctuations in
value prior to their actual delivery. The Portfolio does not accrue income with
respect to a when-issued or delayed delivery security prior to its stated
delivery date. Purchasing securities on a when-issued or delayed delivery basis
can involve the additional risk that the yield available in the market when the
delivery takes place may be higher than that obtained in the transaction itself.
Upon purchasing a security on a when-issued or delayed delivery basis, the
Portfolio will segregate with the Portfolio's custodian liquid instruments in an
amount at least equal to the when-issued or delayed delivery commitment.
    
 
   
    Investment in Other Investment Companies. In accordance with applicable law,
the Portfolio may invest its assets in other money market funds with comparable
investment objectives. In general, the Portfolio may not (1) purchase more than
3% of any other money market fund's voting stock; (2) invest more than 5% of its
assets in any single money market fund; and (3) invest more than 10% of its
assets in other money market funds, unless permitted to exceed these limitations
by an exemptive order of the SEC.
    
 
   
    Illiquid Securities. The Portfolio may not invest more than 10% of its net
assets in securities which are illiquid or otherwise not readily marketable
(such securities may include securities which are subject to legal or
contractual restrictions or repurchase agreements with maturities over seven
days). If a security becomes illiquid after purchase by the Portfolio, the
Portfolio will normally sell the security as soon as is reasonably practicable
unless doing so would not be in the best interests of shareholders.
    
 
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    Credit Enhancement. Certain of the Portfolio's acceptable investments may be
credit-enhanced by a guaranty, letter of credit, or insurance. Any bankruptcy,
receivership, default, or change in the credit quality of the party providing
the credit enhancement will adversely affect the quality and marketability of
the underlying security and could cause losses to the Portfolio and affect the
Money Market ProFund's share price. Subject to the diversification limits
contained in Rule 2a-7, the Portfolio may have more than 25% of its total assets
invested in securities credit-enhanced by banks.
    
 
   
    Securities Lending. The Portfolio is permitted to lend up to 33 1/3% of the
total value of its securities. These loans must be secured continuously by cash
or securities issued or guaranteed by the United States government, its agencies
or instrumentalities or by a letter of credit at least equal to the market value
of the securities loaned plus accrued income. By lending its securities, the
Portfolio may increase its income by continuing to receive income on the loaned
securities as well as by the opportunity to receive interest on the collateral.
During the term of the loan, a Portfolio continues to bear the risk of
fluctuations in the price of the loaned securities. In lending securities to
brokers, dealers and other organizations, the Portfolio is subject to risks
which, like those associated with other extensions of credit, include delays in
receiving additional collateral, in recovery should the borrower fail
financially and possible loss of the collateral. Upon receipt of appropriate
regulatory approval, cash collateral may be invested in a money market fund
managed by Bankers Trust (or its affiliate) and Bankers Trust may serve as the
Portfolio's lending agent and may share in revenue received from securities
lending transactions as compensation for this service.
    
 
   
    Portfolio Quality and Maturity. The Portfolio will maintain a
dollar-weighted average maturity of 90 days or less. All securities in which the
Portfolio invests will have or be deemed to have remaining maturities of 397
days or less on the date of their purchase, will be denominated in U.S. dollars
and will have been granted the required ratings established herein by two NRSROs
(or one such NRSRO if that NRSRO is the only such NRSRO which rates the
security), or if unrated, are believed by Bankers Trust, under the supervision
of the Portfolio's Board of Trustees, to be of comparable quality. Currently,
there are five rating agencies which have been designated by the SEC as an
NRSRO. These organizations and their highest short-term rating category (which
also may be modified by a "+") are: Duff and Phelps Credit Rating Co., D-1;
Fitch IBCA Inc., F1; Moody's Investors Service Inc., Prime-1; Standard & Poor's,
A-1; and Thomson BankWatch, Inc., T-1. A description of all short- and long-term
ratings is provided in the Appendix to the SAI. Bankers Trust, acting under the
supervision of and procedures adopted by the Board of Trustees of the Portfolio,
will also determine that all securities purchased by the Portfolio present
minimal credit
    
 
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risks. Bankers Trust will cause the Portfolio to dispose of any security as soon
as practicable if the security is no longer of the requisite quality, unless
such action would not be in the best interest of the Portfolio. High-quality,
short-term instruments may result in a lower yield than instruments with a lower
quality or longer term.
    
 
   
    Additional Investment Limitations. The Money Market ProFund has the same
investment restrictions as the Portfolio, except that the Money Market ProFund
may invest all of its assets in another open-end investment company with the
same investment objective, such as the Portfolio. The Portfolio may not invest
more than 25% of its total assets in the securities of issuers in any single
industry (excluding U.S. government obligations and repurchase agreements
collateralized by U.S. government obligations), except that, under normal market
conditions, more than 25% of the total assets of the Portfolio will be invested
in obligations of banks and other financial institutions. As an operating
policy, the Portfolio may not invest more than 5% of its total assets in the
securities of any one issuer except: (1) as may be permitted by Rule 2a-7 under
the 1940 Act; and (2) for U.S. government obligations and repurchase agreements
collateralized fully thereby, which may be purchased without limitation. The
Portfolio is also authorized to borrow for temporary purposes to meet
redemptions, including entering into reverse repurchase transactions, in an
amount up to 5% of its total assets and to pledge its assets to the same extent
in connection with these borrowings. See the SAI for additional information with
respect to reverse repurchase transactions. At the time of investment, the
Portfolio's aggregate holdings of repurchase agreements having remaining
maturities of more than seven calendar days (or which may not be terminated
within seven calendar days upon notice by the Portfolio), time deposits having
remaining maturities of more than seven calendar days, illiquid securities,
restricted securities and securities lacking readily available market quotations
will not exceed 10% of the Portfolio's net assets. If changes in the liquidity
of certain securities cause the Portfolio to exceed such 10% limit, the
Portfolio will take steps to bring the aggregate amount of its illiquid
securities back below 10% of its net assets as soon as practicable, unless such
action would not be in the best interest of the Portfolio. The SAI contains
further information on the Money Market ProFund's and the Portfolio's investment
restrictions.
    
 
SPECIAL INFORMATION CONCERNING MASTER-FEEDER FUND STRUCTURE
 
    Unlike other open-end management investment companies (mutual funds) which
directly acquire and manage their own portfolio securities, the Money Market
ProFund seeks to achieve its investment objective by investing all of its assets
in the Portfolio, a separate registered investment company with the same
 
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PRO FUNDS LOGO
 
investment objective as the Money Market ProFund. Therefore, an investor's
interest in the Portfolio's securities is indirect. In addition to selling a
beneficial interest to the Money Market ProFund, the Portfolio may sell
beneficial interests to other mutual funds or institutional investors. Such
investors will invest in the Portfolio on the same terms and conditions and will
pay a proportionate share of the Portfolio's expenses. However, the other
investors investing in the Portfolio are not required to sell their shares at
the same public offering price as the Money Market ProFund or subject to
comparable variations in sales loads and other operating expenses. Therefore,
investors in the Money Market ProFund should be aware that these differences may
result in differences in returns experienced by investors in the different funds
that may invest in the Portfolio. Such differences in returns are also present
in other mutual fund structures. Information concerning other holders of
interests in the Portfolio is available from Bankers Trust at 1-800-368-4031.
 
    The ProFunds' Board of Trustees believes that the Money Market ProFund will
achieve certain efficiencies and economies of scale through the master-feeder
structure, and that the aggregate expenses of the Money Market ProFund will be
less than if the Money Market ProFund invested directly in the securities held
by the Portfolio.
 
    Smaller funds investing in the Portfolio may be materially affected by the
actions of larger funds investing in the Portfolio. For example, if a large fund
withdraws from the Portfolio, the remaining funds may experience higher pro rata
operating expenses, thereby producing lower returns (however, this possibility
exists as well for traditionally structured funds which have large institutional
investors). Additionally, the Portfolio may become less diverse, resulting in
increased portfolio concentration and potential risk. Also, funds with a greater
pro rata ownership in the Portfolio could have effective voting control of the
operations of the Portfolio. Except as permitted by the Commission, whenever the
ProFunds are requested to vote on matters pertaining to the Portfolio, the
ProFunds will hold a meeting of shareholders of the Money Market ProFund and
will cast all of its votes in the same proportion as the votes of the Money
Market ProFund's shareholders. Money Market ProFund shareholders who do not vote
will not affect the ProFunds votes at the Portfolio meeting. The percentage of
the Trust's votes representing Money Market ProFund shareholders not voting will
be voted by the Trustees or officers of the ProFunds in the same proportion as
the Money Market ProFund shareholders who do, in fact, vote.
 
    Certain changes in the Portfolio's investment objective, policies or
restrictions may require the Money Market ProFund to withdraw its interest in
 
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the Portfolio. Such withdrawal could result in a distribution "in kind" of
portfolio securities (as opposed to a cash distribution from the Portfolio). If
securities are distributed, the Money Market ProFund could incur brokerage, tax
or other charges in converting the securities to cash. In addition, the
distribution in kind may result in a less diversified portfolio of investments
or adversely affect the liquidity of the Money Market ProFund. Notwithstanding
the above, there are other means for meeting redemption requests, such as
borrowing.
 
    The Money Market ProFund may withdraw its investment from the Portfolio at
any time, if the Board of Trustees of the ProFunds determines that it is in the
best interests of the shareholders of the Money Market ProFund to do so. Upon
any such withdrawal, the Board of Trustees of the Trust would consider what
action might be taken, including the investment of all the assets of the Money
Market ProFund in another pooled investment entity having the same investment
objective as the Money Market ProFund or the retaining of an investment adviser
to manage the Money Market ProFund's assets in accordance with the investment
policies described above with respect to the Portfolio.
 
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                                     TAXES
 
   
    Each of the ProFunds intends to qualify and elect to be treated each year as
a regulated investment company (a "RIC") under Subchapter M of the Internal
Revenue Code of 1986, as amended. A RIC generally is not subject to federal
income tax on income and gains distributed in a timely manner to its
shareholders, the ProFunds intend to make timely distributions in order to avoid
tax liability.
    
 
   
    Dividends out of net ordinary income and distributions of net short-term
capital gains are taxable to the recipient U.S. shareholders as ordinary income,
whether received in cash or reinvested in ProFund shares. Dividends from net
ordinary income may be eligible for the corporate dividends-received deduction.
    
 
   
    The excess of net long-term capital gains over the net short-term capital
losses realized and distributed by a ProFund to its U.S. shareholders as capital
gains distributions is taxable to the shareholders as long-term capital gain
regardless of the length of time a shareholder has held the ProFund shares, and
the rate of tax will depend upon the ProFund's holding period for the assets
whose sale produces the gain. If a shareholder holds ProFund shares for six
months or less and during that period receives a distribution taxable to the
shareholder as long-term capital gain, any loss realized on the sale of the
ProFund shares will be long-term loss to the extent of such distribution.
    
 
   
    The amount of an income dividend or capital gains distribution declared by a
ProFund during October, November or December of a year to shareholders of record
as of a specified date in such a month that is paid during January of the
following year will be deemed to be received by shareholders on December 31 of
the prior year.
    
 
    Any dividend or distribution paid by a ProFund has the effect of reducing
the ProFund's net asset value per share. Investors should be careful to consider
the tax effect of buying shares shortly before a distribution by a ProFund. The
price of shares purchased at that time will include the amount of the
forthcoming distribution, but the distribution will be taxable to the
shareholder.
 
    A dividend or capital gains distribution with respect to shares of a ProFund
held by a tax-deferred or qualified plan, such as an IRA, retirement plan or
corporate pension or profit sharing plan, will not be taxable to the plan.
Distribution from such plans will be taxable to individual participants under
applicable tax rules without regard to the character of the income earned by the
qualified plan.
 
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    Shareholders will be advised annually as to the federal tax status of
dividends and capital gains distributions made by the ProFunds for the preceding
year. Distributions by ProFunds generally will be subject to state and local
taxes.
    
 
   
    Certain shareholders are required by law to certify that their tax
identification number is correct and that they are not subject to back-up
withholding. In the absence of this certification, the ProFunds are required to
withhold taxes at the rate of 31% on dividends, capital gains distributions, and
redemption proceeds. Amounts withheld may be credited against a shareholder's
federal income tax.
    
 
    The foregoing is a brief summary of federal income tax consequences of
owning ProFund shares. For more information about federal, state and local
taxes, please see your tax adviser and the SAI.
 
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                                   MANAGEMENT
                                OF THE PROFUNDS
 
INVESTMENT ADVISORS
 
    ProFund Advisors LLC
 
    The ProFunds are provided investment advice and management services by
ProFund Advisors LLC, a Maryland limited liability company formed on May 8,
1997, with offices at 7900 Wisconsin Avenue, Suite 300, Bethesda, Maryland
20814. Louis M. Mayberg and Michael L. Sapir own a controlling interest in the
Advisor.
 
    Under an investment advisory agreement between the non-money market ProFunds
and the Advisor, dated October 28, 1997, the non-money market ProFunds each pay
the Advisor a fee at an annualized rate, based on the average daily net assets
for each respective ProFund, of 0.75%. The Advisor manages the investment and
the reinvestment of the assets of each of the ProFunds, in accordance with the
investment objectives, policies, and limitations of the ProFunds, subject to the
general supervision and control of the ProFunds' Board of Trustees and officers.
The Advisor bears all costs associated with providing these advisory services
and the expenses of the ProFunds who are affiliated persons of the Advisor. The
Advisor, from its own resources, including profits from advisory fees received
from the ProFunds, also may make payments to broker-dealers and other financial
institutions for their expenses in connection with the distribution of ProFund
shares, and otherwise currently pays all distribution costs for ProFund shares.
 
    As recently created entities, the ProFunds will be subject to all the risks
incident to the creation of a new business, including the absence of a history
of operations. The Advisor is a newly created entity and, as such, prior to the
commencement of operations of the ProFunds, had no previous experience in
providing investment management services to an investment company. Michael L.
Sapir, the Advisor's chairman and chief executive officer, is the former senior
vice president of Padco Advisors, Inc., the investment adviser to the Rydex(R)
Funds and was an attorney in private practice for over thirteen years
specializing in advising issuers of investment products, including mutual funds.
Louis M. Mayberg, the Advisor's president, co-founded an investment banking firm
in 1986 and has been responsible for, among other things, managing the
investment "hedge" fund sponsored by that firm. William E. Seale, Ph.D., the
Advisor's and the ProFunds' portfolio director, has over twenty-five years of
experience with respect to the commodity futures markets, including serving for
five years pursuant to a presidential appointment as commissioner to the United
States Com-
 
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modities Futures Trading Commission. The ProFunds' Administrator, BISYS,
provides operations, compliance and administrative services for investment
companies.
 
    Bankers Trust
 
    The Money Market ProFund seeks to achieve its investment objective by
investing all of its investable assets in the Portfolio, which has as its
investment adviser, Bankers Trust, a New York banking corporation with principal
offices at 130 Liberty Street, New York, New York 10006, and a wholly-owned
subsidiary of Bankers Trust New York Corporation. Bankers Trust currently
receives an investment management fee for its services to the Portfolio in the
amount of 0.15% of the average daily net assets of the Portfolio.
 
    Bankers Trust conducts a variety of general banking and trust activities and
is a major wholesale supplier of financial services to international and
domestic institutional markets. As of June 30, 1997, Bankers Trust New York
Corporation was the seventh largest bank holding company in the United States
with total assets of approximately $129 billion. Bankers Trust is a worldwide
merchant bank dedicated to servicing the needs of corporations, governments,
financial institutions and private clients through a global network of over 120
offices in more than 50 countries. Investment management is a core business of
Bankers Trust, built on a tradition of excellence from its roots as a trust bank
founded in 1903. The scope of Bankers Trust's investment management capability
is unique due to its leadership positions in both active and passive
quantitative management and its presence in major equity and fixed income
markets around the world. Bankers Trust is one of the nation's largest and most
experienced investment managers, with approximately $240 billion in assets under
management globally.
 
    Bankers Trust has more than 50 years of experience managing retirement
assets for the nation's largest corporations and institutions. In the past,
these clients have been serviced through separate account and commingled fund
structures. Bankers Trust's officers have had extensive experience in managing
investment portfolios having objectives similar to those of the Portfolio.
 
    Bankers Trust, subject to the supervision and direction of the Board of
Trustees of the Portfolio, manages the Portfolio in accordance with the
Portfolio's investment objective and stated investment policies, makes
investment decisions for the Portfolio, places orders to purchase and sell
securities and other financial instruments on behalf of the Portfolio and
employs professional investment managers and securities analysts who provide
research services to the Portfolio. All orders for investment transactions on
behalf of the Portfolio are placed by Bankers Trust with broker-dealers and
other financial intermediaries that it
 
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selects, including those affiliated with Bankers Trust. A Bankers Trust
affiliate will be used in connection with a purchase or sale of an investment
for the Portfolio only if Bankers Trust believes that the affiliate's charge for
the transaction does not exceed usual and customary levels. The Portfolio will
not invest in obligations for which Bankers Trust or any of its affiliates is
the ultimate obligor or accepting bank. The Portfolio may, however, invest in
the obligations of correspondents and customers of Bankers Trust.
 
SERVICE PROVIDERS
 
    Administrator, Transfer Agent, Fund Accounting Agent and Custodian
 
    BISYS acts as Administrator to the ProFunds. BISYS provides administrative
services necessary for the operation of the ProFunds, including, among other
things, (i) preparation of shareholder reports and communications, (ii)
regulatory compliance, such as reports to and filings with the Commission and
state securities commissions, and (iii) general supervision of the operation of
the ProFunds, including coordination of the services performed by the ProFunds'
Advisor, custodians, independent accountants, legal counsel and others. In
addition, BISYS furnishes office space and facilities required for conducting
the business of the ProFunds and pays the compensation of the ProFunds' officers
and employees affiliated with BISYS.
 
    For its services as Administrator, each ProFund pays BISYS an annual fee
ranging from 0.15% of average daily net assets of $0 to $300 million to 0.05% of
average daily net assets of $1 billion and over. BFSI, an affiliate of BISYS,
acts as transfer agent and fund accounting agent for the ProFunds, for which it
receives additional fees. Additionally, ProFunds, BISYS and BFSI have entered
into an Omnibus Fee Agreement in which the amount of compensation due and
payable to BISYS shall be the greater of (i) the aggregate fee amount due and
payable for services pursuant to the Administration, Fund Accounting and
Transfer Agency Agreements and (ii) the minimum relationship fee described as
specific dollar amounts payable over a period of ten calendar quarters. The
address of BISYS and BFSI is 3435 Stelzer Road, Suite 1000, Columbus, Ohio
43219.
 
    ProFunds Advisors LLC, pursuant to a separate Management Services Agreement,
performs certain client support services and other administrative services on
behalf of the ProFunds. For these services, each non-money market ProFund will
pay to ProFunds Advisors LLC a fee at the annual rate of 0.15% of its average
daily net assets. Under this agreement, ProFund Advisors LLC may receive up to
0.35% of the Money Market ProFund's average daily net assets for providing
feeder fund management and administrative services to the Money Market ProFund,
which services include monitoring the performance of the
 
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underlying investment company in which the Money Market ProFund invests,
coordinating the Money Market ProFund's relationship with such entity,
communicating with the Trust's Board of Trustees and shareholders regarding such
entity's performance and the Money Market ProFund's two-tier structure and, in
general, assisting the Board of Trustees of the Trust in all aspects of the
administration and operation of the Money Market ProFund.
 
    Under an Administration and Services Agreement with the Portfolio, Bankers
Trust calculates the value of the assets of the Portfolio and generally assists
the Board of Trustees of the Portfolio in all aspects of the administration and
operation of the Portfolio. The Administration and Services Agreement provides
for the Portfolio to pay Bankers Trust a fee, computed daily and paid monthly,
at the annual rate of 0.05% of the average daily net assets of the Portfolio.
Under the Administration and Services Agreement, Bankers Trust may delegate one
or more of its responsibilities to others at Bankers Trust's expense.
 
    UMB Bank, N.A. acts as custodian to the ProFunds; its address is 928 Grand
Avenue, Kansas City, Missouri.
 
    Distributor
 
    Concord Financial Group, Inc. will serve as the distributor and principal
underwriter in all fifty states and the District of Columbia. Concord Financial
Group, Inc., an affiliate of BISYS, receives no compensation from the ProFunds
for serving as distributor. Concord Financial Group, Inc.'s address is 3435
Stelzer Road, Columbus, Ohio 43215.
 
    Shareholder Services Plan -- Service Shares
 
    Each ProFund has adopted a Shareholder Services Plan (the "Plan") and
related agreement ("Shareholder Services Agreement"). The Plan provides that
each ProFund will make payments to Authorized Firms (defined below) in an amount
up to 1.00% (on an annual basis) of the average daily value of the net assets of
such ProFund's Service class of shares attributable to or held in the name of an
Authorized Firm for its clients. The Plan provides that the fee will be paid to
registered investment advisers, banks, trust companies and other financial
organizations ("Authorized Firms"), for providing account administration and
other services to their clients who are beneficial owners of such shares.
 
    The services provided by the Authorized Firms may include, among other
things, receiving, aggregating and processing shareholder or beneficial owner
(collectively "shareholder") orders; furnishing shareholder subaccounting;
providing and maintaining retirement plan records; communicating periodically
with shareholders; acting as the sole shareholder of record and nominee for
shareholders; maintaining account records for shareholders; answering questions
 
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and handling correspondence from shareholders about their accounts; issuing
various shareholder reports and confirmations for transactions by shareholders;
performing daily investment ("sweep") functions for shareholders; and account
administration services. ProFunds expects that the level of services provided
with respect to these accounts will be more extensive than typically occurs
under shareholder servicing plans.
 
    Holders of Service Shares of a ProFund will bear all fees paid under the
Plan with respect to such shares as well as any other expenses which are
directly attributable to such shares.
 
    Authorized Firms may charge other fees to their clients who are the
beneficial owners of Service Shares in connection with their client accounts.
These fees would be in addition to any amounts received by the Authorized Firms
and would be for services other than those provided under the Shareholder
Service Agreement. Under the terms of the Shareholder Service Agreement,
Authorized Firms are required to provide their clients with a schedule of fees
charged to such clients which relate to the investment of customers' assets in
Service Shares.
 
    Each ProFund will accrue payments made pursuant to the Plan daily. The
payments under the Plan which are required to be accrued to the ProFunds'
Service Shares on any day will not exceed the distributable income to be accrued
to such shares on that day. All inquiries by a beneficial owner of Service
Shares must be directed to such owner's Authorized Firm.
 
COSTS AND EXPENSES
 
    The ProFunds bear all expenses of their operations other than those assumed
by the Advisor or BISYS. Expenses of the ProFunds include, but are not limited
to: the advisory fee; administrative, transfer agent, and shareholder servicing
fees; custodian and accounting fees and expenses; legal and auditing fees;
securities valuation expenses; fidelity bonds and other insurance premiums;
expenses of preparing and printing prospectuses, confirmations, proxy
statements, and shareholder reports and notices; registration fees and expenses;
proxy and annual meeting expenses, if any; all Federal, state, and local taxes
(including, without limitation, stamp, excise, income, and franchise taxes);
organizational costs; and independent Trustee's fees and expenses. In order to
increase the return to investors, both the Advisor and Bankers Trust may from
time to time agree to voluntarily waive or reduce their respective fees, while
retaining their ability to be reimbursed for such fees prior to the end of each
fiscal year.
 
                                                                -----------
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PORTFOLIO TRADING PRACTICES
 
    The Advisor determines which securities to purchase and sell for each non-
money market ProFund, selects brokers and dealers to effect the transactions,
and negotiates commissions. The Advisor expects that the non-money market
ProFunds may execute brokerage or other agency transactions through registered
broker-dealers, for a commission, in conformity with the 1940 Act, the
Securities Exchange Act of 1934, as amended, and the rules and regulations
thereunder. In placing orders for portfolio transactions, the Advisor's policy
is to obtain the most favorable combination of price and efficient execution
available. Brokerage commissions are normally paid on exchange-traded securities
transactions and on options and futures transactions, as well as on common stock
transactions. In order to obtain the brokerage and research services described
below, a commission may sometimes be paid that is higher than the lowest
commission available. The ability to receive research services may be a factor
in the selection of one dealer acting as a principal over another.
 
    When selecting broker-dealers to execute portfolio transactions, the Advisor
considers many factors, including the rate of commission or size of the broker-
dealer's "spread," the size and difficulty of the order, the nature of the
market for the security, the willingness of the broker-dealer to position, the
reliability, financial condition, general execution and operational capabilities
of the broker-dealer, and the research, statistical and economic data furnished
by the broker-dealer to the Advisor. The Advisor may use these services in
connection with all of the Advisor's investment activities, including other
investment accounts the Advisor advises. Conversely, brokers or dealers which
supply research may be selected for execution of transactions for such other
accounts, while the data may be used by the Advisor in providing investment
advisory services to the non-money market ProFunds.
 
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                                                                      Prospectus
 
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PRO FUNDS LOGO
 
                              GENERAL INFORMATION
                                ABOUT THE TRUST
 
ORGANIZATION AND DESCRIPTION OF SHARES OF BENEFICIAL INTEREST
 
   
    ProFunds (the "Trust") is a registered open-end investment company under the
1940 Act. The Trust was organized as a Delaware business trust on April 17,
1997, and has authorized capital of unlimited shares of beneficial interest of
no par value which may be issued in more than one class or series. Currently,
the Trust consists of seven separately managed series. Other separate series may
be added in the future. Each ProFund offers two classes of shares: the Service
Shares and the Investor Shares.
    
 
    All shares of the ProFund are freely transferable. The Trust shares do not
have preemptive rights or cumulative voting rights, and none of the shares have
any preference to conversion, exchange, dividends, retirements, liquidation,
redemption, or any other feature. Trust shares have equal voting rights, except
that, in a matter affecting a particular series or class of shares, only shares
of that series or class may be entitled to vote on the matter.
 
    Under Delaware law, the Trust is not required to hold an annual shareholders
meeting if the 1940 Act does not require such a meeting. Generally, there will
not be annual meetings of Trust shareholders. Trust shareholders may remove
Trustees from office by votes cast at a meeting of Trust shareholders or by
written consent. If requested by shareholders of at least 10% of the outstanding
shares of the Trust, the Trust will call a meeting of ProFunds' shareholders for
the purpose of voting upon the question of removal of a Trustee of the Trust and
will assist in communications with other Trust shareholders.
 
    The Declaration of Trust of the ProFunds disclaims liability of the
shareholders or the officers of the Trust for acts or obligations of the Trust
which are binding only on the assets and property of the Trust. The Declaration
of Trust provides for indemnification out of the Trust's property for all loss
and expense of any ProFunds shareholder held personally liable for the
obligations of the Trust. The risk of a Trust shareholder incurring financial
loss on account of shareholder liability is limited to circumstances in which
the ProFunds itself would not be able to meet the Trust's obligations and this
risk, thus, should be considered remote.
 
DETERMINATION OF NET ASSET VALUE
 
    The net asset values of the shares of the ProFunds are determined as of the
close of business on each day the Chicago Mercantile Exchange ("CME") is open
for business, normally 4:15 PM (in the case of the Money Market ProFund, net
 
                                                                -----------
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<PAGE>   56
- --------------------------------------------------------------------------------
 
asset value is determined as of the close of business of each day the NYSE is
open for business). Currently, the CME and the NYSE are closed on weekends, and
the following holiday closings have been scheduled for 1997: (i) New Year's Day,
Martin Luther King, Jr. Day, Presidents' Day, Good Friday, Memorial Day,
Independence Day, Labor Day, Thanksgiving Day and Christmas Day, and (ii) the
preceding Friday when any of those holidays falls on a Saturday or the
subsequent Monday when any of these holidays falls on a Sunday. To the extent
that portfolio securities of a ProFund are traded in other markets on days when
the ProFund's principal trading market(s) is closed, the ProFund's net asset
value may be affected on days when investors do not have access to the ProFund
to purchase or redeem shares. Although the ProFunds expect the same holiday
schedules to be observed in the future, the CME and the NYSE may modify its
holiday schedule at any time.
 
    The net asset value of each class of shares of a ProFund serves as the basis
for the purchase and redemption price of that class of shares. The net asset
value per share of each class of a ProFund is calculated by dividing the market
value of the ProFund's assets attributed to a specific class (in the case of the
Money Market ProFund, the value of its investment in the Portfolio), less all
liabilities attributed to the specific class, by the number of outstanding
shares of the class. If market quotations are not readily available, a security
will be valued at fair value by the Trustees of ProFunds or by the Advisor using
methods established or ratified by the Trustees of ProFunds. The Money Market
ProFund's net asset value per share will normally be $1.00. There is no
assurance that the $1.00 net asset value will be maintained.
 
    The Portfolio will utilize the amortized cost method in valuing its
portfolio securities. This method involves valuing each security held by the
Portfolio at its cost at the time of its purchase and thereafter assuming a
constant amortization to maturity of any discount or premium. Accordingly,
immaterial fluctuations in the market value of the securities held by the
Portfolio will not be reflected in the Money Market ProFund's net asset value.
The Board of Trustees of the Portfolio will monitor the valuation of assets of
this method and will make such changes as it deems necessary to assure that the
assets of the Portfolio are valued fairly in good faith.
 
    The securities in the portfolio of a non-money market ProFund, except as
otherwise noted, that are listed or traded on a stock exchange, are valued on
the basis of the last sale on that day or, lacking any sales, at a price that is
the mean between the closing bid and asked prices. Other securities that are
traded on the OTC markets are priced using NASDAQ, which provides information on
bid and asked prices quoted by major dealers in such stocks. Bonds, other than
 
- --------------------------------------------------------------------------------
- -----------
                                                                      Prospectus
 
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<PAGE>   57
- -----------
- --------------------------------------------------------------------------------
 
PRO FUNDS LOGO
 
convertible bonds, are valued using a third-party pricing system. Convertible
bonds are valued using this pricing system only on days when there is no sale
reported. Short-term debt securities are valued at amortized cost, which
approximates market value. When market quotations are not readily available,
securities and other assets are valued at fair value as determined in good faith
under procedures established by and under the general supervision and
responsibility of the ProFunds' Board of Trustees.
 
    Puts, calls and futures contracts purchased and held by the ProFunds are
valued at the close of the securities or commodities exchanges on which they are
traded. (Ordinarily, the close of the regular session for options trading on
national securities exchanges is 4:15 p.m. Eastern Time and the close of the
regular session of commodities exchanges is 4:15 p.m. Eastern Time.) Options on
securities and indices purchased by a ProFund generally are valued at their last
bid price in the case of exchange-traded options or, in the case of options
traded in the OTC market, the average of the last bid price as obtained from two
or more dealers unless there is only one dealer, in which case that dealer's
price is used. Futures contracts will be valued with reference to established
futures exchanges. The value of a futures contract purchased by the ProFunds
will be either the closing price of that contract or the bid price. Conversely,
the value of a futures contract sold by the ProFunds will be either the closing
price or the asked price. The value of options on futures contracts is
determined based upon the current settlement price for a like option acquired on
the day on which the option is being valued. A settlement price may not be used
for the foregoing purposes if the market makes a limit move with respect to a
particular commodity.
 
FUNDAMENTAL POLICIES
 
    The investment objectives (except the specific benchmarks which are tracked
by the ProFunds) and certain investment restrictions of the ProFunds
specifically identified as fundamental policies may not be changed without the
affirmative vote of at least the majority of the outstanding shares of that
ProFund, as defined in the 1940 Act. All other investment policies of the
ProFunds not specified as fundamental (including the benchmarks of the ProFunds)
may be changed by the trustees of the ProFunds without the approval of
shareholders.
 
    The ProFunds may consider changing a ProFund's benchmark if, for example,
the current benchmark becomes unavailable; the ProFunds believe the current
benchmark no longer serves the investment needs of a majority of shareholders or
another benchmark better serves their needs; or the financial or economic
environment makes it difficult for the ProFund's investment results to
correspond sufficiently to its current benchmark. If believed appropriate, the
 
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<PAGE>   58
- --------------------------------------------------------------------------------
 
ProFunds may specify a benchmark for a ProFund that is "leveraged" or
proprietary. Of course, there can be no assurance that a ProFund will achieve
its objective.
 
TRUSTEES AND OFFICERS
 
    The ProFunds has a Board of Trustees which is responsible for the general
supervision of ProFunds' business. The day-to-day operations of the ProFunds are
the responsibility of the ProFunds' officers.
 
AUDITORS
 
   
    Coopers & Lybrand LLP are the auditors of and the independent accountants
for ProFunds.
    
 
    NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS, OR IN THE STATEMENT OF
ADDITIONAL INFORMATION INCORPORATED HEREIN BY REFERENCE, IN CONNECTION WITH THE
OFFERING MADE BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR
PRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE TRUST.
THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFERING BY THE PROFUNDS IN ANY
JURISDICTION IN WHICH SUCH AN OFFERING MAY NOT LAWFULLY BE MADE.
 
- --------------------------------------------------------------------------------
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                                                                      Prospectus
 
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PRO FUNDS LOGO
 
   
                      (THIS PAGE INTENTIONALLY LEFT BLANK)
    
 
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LOGO54
<PAGE>   60
INVESTMENT ADVISOR
- ------------------
  ALL NON-MONEY MARKET PROFUNDS    
     ProFunds Advisors LLC
     7900 Wisconsin Avenue, Suite 300
     Bethesda, Maryland 20814

  MONEY MARKET PROFUND
     Bankers Trust Company
     130 Liberty Street
     New York, NY 10006


ADMINISTRATOR, TRANSFER AGENT, FUND ACCOUNTING AGENT
- ----------------------------------------------------
  BISYS Fund Services
  3435 Stelzer Road
  Columbus, Ohio 43219-3035

PROFUNDS COUNSEL
- ----------------
  Dechert Price & Rhoads
   
  1775 Eye Street, N.W.
  Washington, D.C. 20006
    

INDEPENDENT AUDITORS   
- --------------------
  Coopers & Lybrand LLP
  100 East Broad Street,
  Suite 2100
  Columbus, Ohio 43215-3671

CUSTODIAN
- ---------
  UMB Bank, N.A.
  928 Grand Avenue
  Kansas City, Missouri 64141



                                     [LOGO]
                                  PROFUNDS(TM)


   
                                                                            4/98
    

<PAGE>   61



                                    PROFUNDS

                       STATEMENT OF ADDITIONAL INFORMATION

                        7900 WISCONSIN AVENUE, SUITE 300
                            BETHESDA, MARYLAND 20814
              (888) 776-5717 (REGISTERED INVESTMENT ADVISERS ONLY)
                         (888) PRO-FNDS (FOR ALL OTHERS)



   
     This statement of additional information describes seven ProFunds. Each
ProFund offers two classes of shares: Service Shares and Investor Shares. The
ProFunds may be used by professional money managers and investors as part of an
asset-allocation or market-timing investment strategy or to create specified
investment exposure to a particular segment of the securities market or to hedge
an existing investment portfolio. Sales are made without any sales charge at net
asset value. Each non-money-market ProFund seeks investment results that
correspond each day to a specified benchmark. The ProFunds may be used
independently or in combination with each other as part of an overall investment
strategy. Additional ProFunds may be created from time to time.
    

     The ProFunds include the Money Market ProFund. The Money Market ProFund
seeks a high level of current income consistent with liquidity and preservation
of capital through investment in high quality money market instruments. Unlike
other mutual funds, the Money Market ProFund seeks to achieve its investment
objective by investing all of its investable assets in the Cash Management
Portfolio (the "Portfolio"), a separate investment company with an identical
investment objective. The performance of the Money Market ProFund will
correspond directly to the investment performance of the Portfolio.

     The ProFunds involve special risks, some not traditionally associated with
mutual funds. Investors should carefully review and evaluate these risks in
considering an investment in the ProFunds to determine whether an investment in
a particular ProFund is appropriate. None of the ProFunds alone constitutes a
balanced investment plan and are not intended for investors whose principal
objective is current income or preservation of capital. Because of the inherent
risks in any investment, there can be no assurance that the ProFunds' investment
objectives will be achieved.

   
     This Statement of Additional Information is not a prospectus. It should be
read in conjunction with ProFunds' Prospectus, dated April 24, 1998, which
incorporates this Statement of Additional Information by reference. A copy of
the Prospectus is available, without charge, upon request to at the address
above or by telephoning at the telephone numbers above.

     The date of this Statement of Additional Information is April 24, 1998.
    

                                      B-1

<PAGE>   62



                       STATEMENT OF ADDITIONAL INFORMATION


                                TABLE OF CONTENTS



   
<TABLE>
<CAPTION>
                                                                                                      PAGE
                                                                                                       ---
<S>                                                                                                  <C>
The PROFUNDS.........................................................................................   4
Investment Policies and Techniques...................................................................   4
Investment Restrictions..............................................................................  10
Portfolio Transactions and Brokerage.................................................................  15
Management of Profunds...............................................................................  19
Taxation.............................................................................................  23
Performance Information..............................................................................  23
Financial Statements.................................................................................  26
Appendix -- Description of Securities Ratings........................................................ A-1

</TABLE>
    


                                      B-2
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                                    PROFUNDS

   
     ProFunds (the "Trust") is an open-end management investment company, and
currently comprises seven separate series. Other series may be added in the
future. The ProFunds may be used independently or in combination with each other
as part of an overall investment strategy. Shares of any ProFund may be
exchanged, without any charge, for shares of the same class of any other ProFund
on the basis of the respective net asset values of the shares involved;
provided, that, in connection with exchanges for shares of the ProFund, certain
minimum investment levels are maintained (see "Shareholders' Guide -- how to
Exchange Shares of the ProFunds" in the Prospectus).
    

                       INVESTMENT POLICIES AND TECHNIQUES

GENERAL

     Reference is made to the sections entitled "Investment Objectives" and
"Investment Policies and Techniques" in the ProFund's Prospectus for a
discussion of the investment objectives and policies of the ProFunds. In
addition, set forth below is further information relating to the ProFunds. The
discussion below supplements and should be read in conjunction with the
Prospectus. Portfolio management is provided to the non-money market ProFunds by
its investment adviser, ProFund Advisors LLC, a Maryland limited liability
company with offices at 7900 Wisconsin Avenue, NW, Bethesda, Maryland (the
"Advisor"). The Money Market ProFund seeks to achieve its investment objective
by investing all of its assets in the Portfolio which has as its investment
adviser, Bankers Trust Company ("Bankers Trust").

     The investment strategies of the ProFunds discussed below, and as discussed
in the Prospectus, may be used by a ProFund if, in the opinion of the Advisor,
these strategies will be advantageous to the ProFund. The ProFund is free to
reduce or eliminate the ProFund's activity in any of those areas without
changing the ProFund's fundamental investment policies. There is no assurance
that any of these strategies or any other strategies and methods of investment
available to a ProFund will result in the achievement of the ProFund's
objectives.

FUTURES CONTRACTS

     The non-money market ProFunds may purchase and sell futures contracts and
options thereon only to the extent that such activities would be consistent with
the requirements of Section 4.5 of the regulations under the Commodity Exchange
Act promulgated by the Commodity Futures Trading Commission (the "CFTC
Regulations"), under which each of these ProFunds would be excluded from the
definition of a "commodity pool operator." Under Section 4.5 of the CFTC
Regulations, a ProFund may engage in futures transactions, either for "bona fide
hedging" purposes, as this term is defined in the CFTC Regulations, or for
non-hedging purposes to the extent that the aggregate initial margins and option
premiums required to establish such non-hedging positions do not exceed 5% of
the liquidation value of the ProFund's portfolio. In the case of an option on
futures contracts that is "in-the-money" at the time of purchase (i.e., the
amount by which the exercise price of the put option exceeds the current market
value of the underlying security or the amount by which the current market value
of the underlying security exceeds the exercise price of the call option), the
in-the-money amount may be excluded in calculating this 5% limitation.

     The ProFunds will cover their positions when they write a futures contract
or option on a futures contract. A ProFund may "cover" its long position in a
futures contract by purchasing a put option on the same futures contract with a
strike price (i.e., an exercise price) as high or higher than the price of the
futures contract, or, if the strike price of the put is less than the price of
the futures contract, the ProFund will maintain in a segregated account cash or
liquid instruments equal in value to the difference between the strike price of
the put and the price of the future. A ProFund may also cover its long position
in a futures contract by taking a short position in the instruments underlying
the futures contract, or by taking positions in instruments the prices of which
are expected to move relatively consistently with the futures contract. A
ProFund may cover its short position in a futures contract by taking a long
position in the instruments underlying the futures contract, or by taking
positions in 



                                      B-3
<PAGE>   64



   
instruments the prices of which are expected to move relatively consistently
with the futures contract.
    

     A ProFund may cover its sale of a call option on a futures contract by
taking a long position in the underlying futures contract at a price less than
or equal to the strike price of the call option, or, if the long position in the
underlying futures contract is established at a price greater than the strike
price of the written (sold) call, the ProFund will maintain in a segregated
account liquid instruments equal in value to the difference between the strike
price of the call and the price of the future. A ProFund may also cover its sale
of a call option by taking positions in instruments the prices of which are
expected to move relatively consistently with the call option. A ProFund may
cover its sale of a put option on a futures contract by taking a short position
in the underlying futures contract at a price greater than or equal to the
strike price of the put option, or, if the short position in the underlying
futures contract is established at a price less than the strike price of the
written put, the ProFund will maintain in a segregated account cash or
high-grade liquid debt securities equal in value to the difference between the
strike price of the put and the price of the future. A ProFund may also cover
its sale of a put option by taking positions in instruments the prices of which
are expected to move relatively consistently with the put option.

INDEX OPTIONS
     The non-money market ProFunds may engage in transactions in stock index
options listed on national securities exchanges or traded in the
over-the-counter market as an investment vehicle for the purpose of realizing
the ProFund's investment objective. Options on indexes are settled in cash, not
by delivery of securities. The exercising holder of an index option receives,
instead of a security, cash equal to the difference between the closing price of
the securities index and the exercise price of the option.

     Some stock index options are based on a broad market index such as the S&P
500 Index, the NYSE Composite Index, or the AMEX Major Market Index, or on a
narrower index such as the Philadelphia Stock Exchange Over-the-Counter Index.
Options currently are traded on the Chicago Board Options Exchange (the "CBOE"),
the AMEX, and other exchanges ("Exchanges"). Purchased over-the-counter options
and the cover for written over-the-counter options will be subject to the
respective ProFund's 15% limitation on investment in illiquid securities. See
"Illiquid Securities."

     Each of the Exchanges has established limitations governing the maximum
number of call or put options on the same index which may be bought or written
(sold) by a single investor, whether acting alone or in concert with others
(regardless of whether such options are written on the same or different
Exchanges or are held or written on one or more accounts or through one or more
brokers). Under these limitations, option positions of all investment companies
advised by the same investment adviser are combined for purposes of these
limits. Pursuant to these limitations, an Exchange may order the liquidation of
positions and may impose other sanctions or restrictions. These position limits
may restrict the number of listed options which a ProFund may buy or sell;
however, the Advisor intends to comply with all limitations.

OPTIONS ON SECURITIES
     The non-money market ProFunds may buy and write (sell) options on
securities for the purpose of realizing their respective ProFund's investment
objective. By writing a call option on securities, a ProFund becomes obligated
during the term of the option to sell the securities underlying the option at
the exercise price if the option is exercised. By writing a put option, a
ProFund becomes obligated during the term of the option to purchase the
securities underlying the option at the exercise price if the option is
exercised. During the term of the option, the writer may be assigned an exercise
notice by the broker-dealer through whom the option was sold. The exercise
notice would require the writer to deliver, in the case of a call, or take
delivery of, in the case of a put, the underlying security against payment of
the exercise price. This obligation terminates upon expiration of the option, or
at such earlier time that the writer effects a closing purchase transaction by
purchasing an option covering the same underlying security and having the same
exercise price and expiration date as the one previously sold. Once an option
has been exercised, the writer




                                      B-4
<PAGE>   65



may not execute a closing purchase transaction. To secure the obligation to
deliver the underlying security in the case of a call option, the writer of a
call option is required to deposit in escrow the underlying security or other
assets in accordance with the rules of the Options Clearing Corporation (the
"OCC"), an institution created to interpose itself between buyers and sellers of
options. The OCC assumes the other side of every purchase and sale transaction
on an exchange and, by doing so, gives its guarantee to the transaction. When
writing call options on securities, a ProFund may cover its position by owning
the underlying security on which the option is written. Alternatively, the
ProFund may cover its position by owning a call option on the underlying
security, on a share for share basis, which is deliverable under the option
contract at a price no higher than the exercise price of the call option written
by the ProFund or, if higher, by owning such call option and depositing and
maintaining in a segregated account cash or liquid instruments equal in value to
the difference between the two exercise prices. In addition, a ProFund may cover
its position by depositing and maintaining in a segregated account cash or
liquid instruments equal in value to the exercise price of the call option
written by the ProFund. When a ProFund writes a put option, the ProFund will
have and maintain on deposit with its custodian bank cash or liquid instruments
having a value equal to the exercise value of the option. The principal reason
for a ProFund to write call options on stocks held by the ProFund is to attempt
to realize, through the receipt of premiums, a greater return than would be
realized on the underlying securities alone.

     If a ProFund that writes an option wishes to terminate the ProFund's
obligation, the ProFund may effect a "closing purchase transaction." The ProFund
accomplishes this by buying an option of the same series as the option
previously written by the ProFund. The effect of the purchase is that the
writer's position will be canceled by the OCC. However, a writer may not effect
a closing purchase transaction after the writer has been notified of the
exercise of an option. Likewise, a ProFund which is the holder of an option may
liquidate its position by effecting a "closing sale transaction." The ProFund
accomplishes this by selling an option of the same series as the option
previously purchased by the ProFund. There is no guarantee that either a closing
purchase or a closing sale transaction can be effected. If any call or put
option is not exercised or sold, the option will become worthless on its
expiration date. A ProFund will realize a gain (or a loss) on a closing purchase
transaction with respect to a call or a put option previously written by the
ProFund if the premium, plus commission costs, paid by the ProFund to purchase
the call or put option to close the transaction is less (or greater) than the
premium, less commission costs, received by the ProFund on the sale of the call
or the put option. The ProFund also will realize a gain if a call or put option
which the ProFund has written lapses unexercised, because the ProFund would
retain the premium.

U.S. GOVERNMENT SECURITIES

     Each non-money market ProFund and the Portfolio also may invest in U.S.
government securities. U.S. government securities include U.S. Treasury
securities, which are backed by the full faith and credit of the U.S. Treasury
and which differ only in their interest rates, maturities, and times of
issuance. U.S. Treasury bills have initial maturities of one year or less; U.S.
Treasury notes have initial maturities of one to ten years; and U.S. Treasury
bonds generally have initial maturities of greater than ten years. Certain U.S.
government securities are issued or guaranteed by agencies or instrumentalities
of the U.S. government including, but not limited to, obligations of U.S.
government agencies or instrumentalities, such as the Federal National Mortgage
Association, the Government National Mortgage Association, the Small Business
Administration, the Federal Farm Credit Administration, the Federal Home Loan
Banks, Banks for Cooperatives (including the Central Bank for Cooperatives),the
Federal Land Banks, the Federal Intermediate Credit Banks, the Tennessee Valley
Authority, the Export-Import Bank of the United States, the Commodity Credit
Corporation, the Federal Financing Bank, the Student Loan Marketing Association,
and the National Credit Union Administration. Some obligations issued or
guaranteed by U.S. government agencies and instrumentalities, including, for
example, Government National Mortgage Association pass-through certificates, are
supported by the full faith and credit of the U.S. Treasury. Other obligations
issued by or guaranteed by Federal agencies, such as those securities issued by
the Federal National Mortgage Association, are supported by the discretionary
authority of the U.S. government to purchase certain obligations of the federal
agency, while other obligations issued by or guaranteed by federal agencies,
such as those of the Federal Home Loan Banks, are supported by the right of the
issuer to borrow from the U.S. Treasury. While the U.S. government provides
financial support to such U.S. government-




                                      B-5
<PAGE>   66


sponsored Federal agencies, no assurance can be given that the U.S. government
will always do so, since the U.S. Government is not so obligated by law. U.S.
Treasury notes and bonds typically pay coupon interest semi-annually and repay
the principal at maturity.

REPURCHASE AGREEMENTS

     Each of the ProFunds may enter into repurchase agreements with financial
institutions. The ProFunds follow certain procedures designed to minimize the
risks inherent in such agreements. These procedures include effecting repurchase
transactions only with large, well-capitalized and well-established financial
institutions whose condition will be continually monitored by the Advisor and,
in the case of the Money Market ProFund, Bankers Trust. In addition, the value
of the collateral underlying the repurchase agreement will always be at least
equal to the repurchase price, including any accrued interest earned on the
repurchase agreement. In the event of a default or bankruptcy by a selling
financial institution, a ProFund will seek to liquidate such collateral which
could involve certain costs or delays and, to the extent that proceeds from any
sale upon a default of the obligation to repurchase were less than the
repurchase price, the ProFund could suffer a loss. It is the current policy of
the ProFunds not to invest in repurchase agreements that do not mature within
seven days if any such investment, together with any other liquid assets held by
the ProFund, amounts to more than 15% (10% with respect to the Money Market
ProFund) of the ProFund's total net assets. The investments of each of the
ProFunds in repurchase agreements at times may be substantial when, in the view
of the Advisor and, in the case of the Money Market ProFund, Bankers Trust,
liquidity, investment, regulatory, or other considerations so warrant.

REVERSE REPURCHASE AGREEMENTS

     The non-money market ProFunds and the Portfolio may use reverse repurchase
agreements as part of that ProFund's investment strategy. Reverse repurchase
agreements involve sales by a ProFund/Portfolio of portfolio assets concurrently
with an agreement by the ProFund/Portfolio to repurchase the same assets at a
later date at a fixed price. Generally, the effect of such a transaction is that
the ProFund/Portfolio can recover all or most of the cash invested in the
portfolio securities involved during the term of the reverse repurchase
agreement, while the ProFund/Portfolio will be able to keep the interest income
associated with those portfolio securities. Such transactions are advantageous
only if the interest cost to the ProFund/Portfolio of the reverse repurchase
transaction is less than the cost of obtaining the cash otherwise. Opportunities
to achieve this advantage may not always be available, and the
ProFund/Portfolios intend to use the reverse repurchase technique only when it
will be to the ProFund/Portfolio's advantage to do so and the Money Market
ProFund will not invest more than 5% of its total assets in reverse repurchase
agreements. The ProFund/Portfolios will establish a segregated account with
their custodian bank in which the ProFund/Portfolio will maintain cash or liquid
instruments equal in value to the ProFund/Portfolio's obligations in respect of
reverse repurchase agreements.

BORROWING

     The ProFunds (other than the Portfolio except to the degree the Portfolio
may borrow for temporary or emergency purposes) may borrow money for cash
management purposes or investment purposes. Each of the non-money market
ProFunds may also enter into reverse repurchase agreements, which may be viewed
as a form of borrowing, with financial institutions. However, to the extent a
ProFund "covers" its repurchase obligations as described above in "Reverse
Repurchase Agreements," such agreement will not be considered to be a "senior
security" and, therefore, will not be subject to the 300% asset coverage
requirement otherwise applicable to borrowings by the ProFunds. Borrowing for
investment is known as leveraging. Leveraging investments, by purchasing
securities with borrowed money, is a speculative technique which increases
investment risk, but also increases investment opportunity. Since substantially
all of a ProFund's assets will fluctuate in value, whereas the interest
obligations on borrowings may be fixed, the net asset value per share of the
ProFund will increase more when the ProFund's portfolio assets increase in value
and decrease more when the ProFund's portfolio assets decrease in value than
would otherwise be the case. Moreover, interest costs on borrowings may
fluctuate with changing market rates of interest and may partially offset or
exceed the returns on the borrowed funds. Under adverse conditions, a




                                      B-6
<PAGE>   67



ProFund might have to sell portfolio securities to meet interest or principal
payments at a time when investment considerations would not favor such sales.

     As required by the Investment Company Act of 1940, as amended (the "1940
Act"), a ProFund must maintain continuous asset coverage (total assets,
including assets acquired with borrowed funds, less liabilities exclusive of
borrowings) of 300% of all amounts borrowed. If at any time the value of the
ProFund's assets should fail to meet this 300% coverage test, the ProFund,
within three days (not including Sundays and holidays), will reduce the amount
of the ProFund's borrowings to the extent necessary to meet this 300% coverage.
Maintenance of this percentage limitation may result in the sale of portfolio
securities at a time when investment considerations otherwise indicate that it
would be disadvantageous to do so. In addition to the foregoing, the ProFunds
are authorized to borrow money from a bank as a temporary measure for
extraordinary or emergency purposes in amounts not in excess of 5% of the value
of the ProFund's total assets. This borrowing is not subject to the foregoing
300% asset coverage requirement. The ProFunds are authorized to pledge portfolio
securities as the Advisor deems appropriate in connection with any borrowings.

LENDING OF PORTFOLIO SECURITIES

     Subject to the investment restrictions set forth below, each of the
ProFunds and the Portfolio may lend its portfolio securities to brokers,
dealers, and financial institutions, provided that cash equal to at least 100%
of the market value of the securities loaned is deposited by the borrower with
the ProFund/Portfolio and is maintained each business day in a segregated
account pursuant to applicable regulations. While such securities are on loan,
the borrower will pay the lending ProFund/Portfolio any income accruing thereon,
and the ProFund/Portfolio may invest the cash collateral in portfolio
securities, thereby earning additional income. A ProFund/Portfolio will not lend
more than 33% of the value of the ProFund's total assets, except that the
Portfolio will not lend more than 20% of the value of its total assets. Loans
would be subject to termination by the lending ProFund/Portfolio on four
business days' notice, or by the borrower on one day's notice. Borrowed
securities must be returned when the loan is terminated. Any gain or loss in the
market price of the borrowed securities which occurs during the term of the loan
inures to the lending ProFund/Portfolio and that ProFund's/Portfolio's
shareholders. A lending ProFund/Portfolio may pay reasonable finders, borrowers,
administrative, and custodial Trustees in connection with a loan.

WHEN-ISSUED AND DELAYED-DELIVERY SECURITIES

     Each non-money market ProFund (and to the extent allowable by its
investment policies, the Money Market ProFund), from time to time, in the
ordinary course of business, may purchase securities on a when-issued or
delayed-delivery basis (i.e., delivery and payment can take place between a
month and 120 days after the date of the transaction). These securities are
subject to market fluctuation and no interest accrues to the purchaser during
this period. At the time a ProFund makes the commitment to purchase securities
on a when-issued or delayed-delivery basis, the ProFund will record the
transaction and thereafter reflect the value of the securities, each day, in
determining the ProFund's net asset value. A ProFund will not purchase
securities on a when-issued or delayed-delivery basis if, as a result, more than
15% of the ProFund's net assets would be so invested. At the time of delivery of
the securities, the value of the securities may be more or less than the
purchase price.

     The Trust will also establish a segregated account with the Trust's
custodian bank in which the ProFunds will maintain liquid instruments equal to
or greater in value than the ProFund's purchase commitments for such when-issued
or delayed-delivery securities, or the Trust does not believe that a ProFund's
net asset value or income will be adversely affected by the ProFund's purchase
of securities on a when-issued or delayed delivery basis.

INVESTMENTS IN OTHER INVESTMENT COMPANIES

     The ProFunds may invest in the securities of other investment companies to
the extent that such an investment would be consistent with the requirements of
the 1940 Act. If a ProFund invests in, and, thus, is




                                      B-7
<PAGE>   68



a shareholder of, another investment company, the ProFund's shareholders will
indirectly bear the ProFund's proportionate share of the fees and expenses paid
by such other investment company, including advisory fees, in addition to both
the management fees payable directly by the ProFund to the ProFund's own
investment adviser and the other expenses that the ProFund bears directly in
connection with the ProFund's own operations.

ILLIQUID SECURITIES

     While none of the ProFunds anticipates doing so, each of the ProFunds and
the Portfolio may purchase illiquid securities, including securities that are
not readily marketable and securities that are not registered ("restricted
securities") under the Securities Act of 1933, as amended (the "1933 Act"), but
which can be sold to qualified institutional buyers under Rule 144A of the 1933
Act. A ProFund will not invest more than 15% (10% with respect to the Portfolio)
of the ProFund's/Portfolio's net assets in illiquid securities. The term
"illiquid securities" for this purpose means securities that cannot be disposed
of within seven days in the ordinary course of business at approximately the
amount at which the ProFund has valued the securities. Under the current
guidelines of the staff of the Securities and Exchange Commission (the
"Commission"),illiquid securities also are considered to include, among other
securities, purchased over-the-counter options, certain cover for
over-the-counter options, repurchase agreements with maturities in excess of
seven days, and certain securities whose disposition is restricted under the
Federal securities laws. The ProFund/Portfolio may not be able to sell illiquid
securities when the Advisor or Bankers Trust considers it desirable to do so or
may have to sell such securities at a price that is lower than the price that
could be obtained if the securities were more liquid. In addition, the sale of
illiquid securities also may require more time and may result in higher dealer
discounts and other selling expenses than does the sale of securities that are
not illiquid. Illiquid securities also may be more difficult to value due to the
unavailability of reliable market quotations for such securities, and
investments in illiquid securities may have an adverse impact on net asset
value.

     Institutional markets for restricted securities have developed as a result
of the promulgation of Rule 144A under the 1933 Act, which provides a safe
harbor from 1933 Act registration requirements for qualifying sales to
institutional investors. When Rule 144A restricted securities present an
attractive investment opportunity and otherwise meet selection criteria, a
ProFund may make such investments. Whether or not such securities are illiquid
depends on the market that exists for the particular security. The Commission
staff has taken the position that the liquidity of Rule 144A restricted
securities is a question of fact for a board of trustees to determine, such
determination to be based on a consideration of the readily-available trading
markets and the review of any contractual restrictions. The staff also has
acknowledged that, while a board of trustees retains ultimate responsibility,
trustees may delegate this function to an investment adviser. Trustees of
ProFunds have delegated this responsibility for determining the liquidity of
Rule 144A restricted securities which may be invested in by a ProFund to the
Advisor or, in the case of the Portfolio, to Bankers Trust. It is not possible
to predict with assurance exactly how the market for Rule 144A restricted
securities or any other security will develop. A security which when purchased
enjoyed a fair degree of marketability may subsequently become illiquid and,
accordingly, a security which was deemed to be liquid at the time of acquisition
may subsequently become illiquid. In such event, appropriate remedies will be
considered to minimize the effect on the ProFund's liquidity.

BANK OBLIGATIONS (MONEY MARKET PROFUND AND THE PORTFOLIO)

     For purposes of the Portfolio's investment policies with respect to bank
obligations, the assets of a bank will be deemed to include the assets of its
domestic and foreign branches. Obligations of foreign branches of U.S. banks and
foreign banks may be general obligations of the parent bank in addition to the
issuing bank or may be limited by the terms of a specific obligation and by
government regulation. If Bankers Trust, acting under the supervision of the
Portfolio's Board of Trustees, deems the instruments to present minimal credit
risk, the Portfolio may invest in obligations of foreign banks or foreign
branches of U.S. banks which include banks located in the United Kingdom, Grand
Cayman Island, Nassau, Japan and Canada. Investments in these obligations may
entail risks that are different from those of investments in obligations of U.S.
domestic banks because of differences in political, regulatory and economic
systems and conditions. These risks include, without limitation, future
political and economic developments,




                                      B-8
<PAGE>   69



currency blockage, the possible imposition of withholding taxes on interest
payments, possible seizure or nationalization of foreign deposits, and
difficulty or inability of pursuing legal remedies and obtaining judgment
concerning the types of securities and other instruments in which the Portfolio
may invest.

COMMERCIAL PAPER AND OTHER DEBT OBLIGATIONS (MONEY MARKET PROFUND
AND THE PORTFOLIO)

     The commercial paper and other debt obligations in which the Portfolio may
invest are short-term, unsecured negotiable promissory notes of U.S. or foreign
corporations that at the time of purchase meet the rating criteria described in
the Prospectus. Investments in foreign commercial paper generally involve risks
similar to those described above relating to obligations of foreign banks or
foreign branches of U.S. banks.

PORTFOLIO TURNOVER

     As discussed in the Prospectus, the ProFunds anticipate that their
investors as part of their strategy, will frequently exchange shares of the
ProFunds for shares in other ProFunds pursuant to the exchange policy, as well
as frequently redeem shares of the ProFunds (see "Shareholders' Guide -- How to
Exchange Shares of the ProFunds" in the Prospectus). The nature of the ProFunds
will cause the ProFunds to experience substantial portfolio turnover. Because
each ProFund's portfolio turnover rate to a great extent will depend on the
purchase, redemption, and exchange activity of the ProFund's investors, it is
difficult to estimate what the ProFund's actual turnover rate will be in the
future. "Portfolio Turnover Rate" is defined under the rules of the Commission
as the value of the securities purchased or securities sold, excluding all
securities whose maturities at time of acquisition were one year or less,
divided by the average monthly value of such securities owned during the year.
Based on this definition, instruments with remaining maturities of less than one
year are excluded from the calculation of portfolio turnover rate. Instruments
excluded from the calculation of portfolio turnover generally would include the
futures contracts and option contracts in which the non-money market ProFunds
invest since such contracts generally have a remaining maturity of less than one
year. Pursuant to the formula prescribed by the Commission, the portfolio
turnover rate for each ProFund is calculated without regard to instruments,
including options and futures contracts, having a maturity of less than one
year. The Bull ProFund, the UltraBull ProFund, the Bear ProFund and the
UltraBear ProFund typically hold most of their investments in short-term options
and futures contracts, which, therefore, are excluded for purposes of computing
portfolio turnover. Therefore, based on the Commission's portfolio turnover
formula, each of these ProFunds expects a portfolio turnover rate of
approximately 0%.

                             INVESTMENT RESTRICTIONS

     The ProFunds and the Portfolio have adopted certain investment restrictions
as fundamental policies which cannot be changed without the approval of the
holders of a "majority" of the outstanding shares of the ProFund or the
Portfolio, as that term is defined in the 1940 Act. The term "majority" is
defined in the 1940 Act as the lesser of: (i) 67% or more of the shares of the
series present at a meeting of shareholders, if the holders of more than 50% of
the outstanding shares of the ProFund are present or represented by proxy; or
(ii) more than 50% of the outstanding shares of the series. (All policies of a
ProFund not specifically identified in this Statement of Additional Information
or the Prospectus as fundamental may be changed without a vote of the
shareholders of the ProFund.) For purposes of the following limitations, all
percentage limitations apply immediately after a purchase or initial investment.

     A non-money market ProFund may not:

     1.  Invest more than 25% of its total assets, taken at market value at the
         time of each investment, in the securities of issuers in any particular
         industry (excluding the U.S. government and its agencies and
         instrumentalities).

     2.  Make investments for the purpose of exercising control or management.



                                      B-9
<PAGE>   70



     3.  Purchase or sell real estate, except that, to the extent permitted by
         applicable law, the ProFund may invest in securities directly or
         indirectly secured by real estate or interests therein or issued by
         companies that invest in real estate or interests therein.

     4.  Make loans to other persons, except that the acquisition of bonds,
         debentures or other corporate debt securities and investment in
         government obligations, commercial paper, pass-through instruments,
         certificates of deposit, bankers' acceptances and repurchase agreements
         and purchase and sale contracts and any similar instruments shall not
         be deemed to be the making of a loan, and except further that the
         ProFund may lend its portfolio securities, provided that the lending of
         portfolio securities may be made only in accordance with applicable law
         and the guidelines set forth in the Prospectus and this Statement of
         Additional Information, as they may be amended from time to time.

     5.  Issue senior securities to the extent such issuance would violate
         applicable law.

     6.  Borrow money, except that the ProFund (i) may borrow from banks (as
         defined in the Investment Company Act of 1940) in amounts up to 33-1/3%
         of its total assets (including the amount borrowed), (ii) may, to the
         extent permitted by applicable law, borrow up to an additional 5% of
         its total assets for temporary purposes, (iii) may obtain such
         short-term credit as may be necessary for the clearance of purchases
         and sales of portfolio securities, (iv) may purchase securities on
         margin to the extent permitted by applicable law and (v) may enter into
         reverse repurchase agreements. The ProFund may not pledge its assets
         other than to secure such borrowings or, to the extent permitted by the
         ProFund's investment policies as set forth in the Prospectus and this
         Statement of Additional Information, as they may be amended from time
         to time, in connection with hedging transactions, short sales,
         when-issued and forward commitment transactions and similar investment
         strategies.

     7.  Underwrite securities of other issuers, except insofar as the ProFund
         technically may be deemed an underwriter under the Securities Act of
         1933, as amended (the "Securities Act"), in selling portfolio
         securities.

     8.  Purchase or sell commodities or contracts on commodities, except to the
         extent the ProFund may do so in accordance with applicable law and the
         ProFund's Prospectus and Statement of Additional Information, as they
         may be amended from time to time.

     THE FOLLOWING FUNDAMENTAL INVESTMENT RESTRICTIONS AND NON-FUNDAMENTAL
INVESTMENT OPERATING POLICIES HAVE BEEN ADOPTED BY THE TRUST, WITH RESPECT TO
THE MONEY MARKET PROFUND, AND BY THE PORTFOLIO. UNLESS AN INVESTMENT INSTRUMENT
OR TECHNIQUE IS DESCRIBED IN THE PROSPECTUS OR ELSEWHERE HEREIN, THE MONEY
MARKET PROFUND AND THE PORTFOLIO MAY NOT INVEST IN THAT INVESTMENT INSTRUMENT OR
ENGAGE IN THAT INVESTMENT TECHNIQUE.

     The investment restrictions below have been adopted by the Trust with
respect to the Money Market ProFund and by the Portfolio as fundamental policies
(as defined above). Whenever the Money Market ProFund is requested to vote on a
change in the investment restrictions of the Portfolio, the Trust will hold a
meeting of the Money Market ProFund shareholders and will cast its votes as
instructed by the shareholders. The Money Market ProFund shareholders who do not
vote will not affect the Trust's votes at the Portfolio meeting. The percentage
of the Trust's votes representing ProFund shareholders not voting will be voted
by the Trustees of the Trust in the same proportion as the Fund shareholders who
do, in fact, vote.

     Under investment policies adopted by the Money Market ProFund and by the
Portfolio, each of the Money Market ProFund and Portfolio may not:



                                      B-10
<PAGE>   71



     1.  Borrow money, except for temporary or emergency (not leveraging)
         purposes in an amount not exceeding 5% of the value of the ProFund's or
         the Portfolio's total assets (including the amount borrowed), as the
         case may be, calculated in each case at the lower of cost or market.

     2.  Pledge, hypothecate, mortgage or otherwise encumber more than 5% of the
         total assets of the ProFund or the Portfolio, as the case may be, and
         only to secure borrowings for temporary or emergency purposes.

     3.  Invest more than 5% of the total assets of the ProFund or the
         Portfolio, as the case may be, in any one issuer (other than U.S.
         government obligations) or purchase more than 10% of any class of
         securities of any one issuer; provided, however, that (i) up to 25% of
         the assets of the ProFund and the Portfolio may be invested without
         regard to this restriction; provided, however, that nothing in this
         investment restriction shall prevent the Trust from investing all or
         part of a ProFund's assets in an open-end management investment company
         with substantially the same investment objectives as the ProFund.

     4.  Invest more than 25% of the total assets of the ProFund or the
         Portfolio, as the case may be, in the securities of issuers in any
         single industry; provided that: (i) this limitation shall not apply to
         the purchase of U.S. government obligations; (ii) under normal market
         conditions more than 25% of the total assets of the Money Market
         ProFund and the Portfolio will be invested in obligations of foreign
         and U.S. Banks provided, however, that nothing in this investment
         restriction shall prevent a Trust from investing all or part of a
         ProFund's assets in an open-end management investment company with
         substantially the same investment objectives as the ProFund.

     5.  Make short sales of securities, maintain a short position or purchase
         any securities on margin, except for such short-term credits as are
         necessary for the clearance of transactions.

     6.  Underwrite the securities issued by others (except to the extent the
         ProFund or Portfolio may be deemed to be an underwriter under the
         Federal securities laws in connection with the disposition of its
         portfolio securities) or knowingly purchase restricted securities,
         provided, however, that nothing in this investment restriction shall
         prevent the Trust from investing all of the ProFund's assets in an
         open-end management investment company with substantially the same
         investment objectives as the ProFund.

     7.  Purchase or sell real estate, real estate investment trust securities,
         commodities or commodity contracts, or oil, gas or mineral interests,
         but this shall not prevent the ProFund or the Portfolio from investing
         in obligations secured by real estate or interests therein.

     8.  Make loans to others, except through the purchase of qualified debt
         obligations, the entry into repurchase agreements and, with respect to
         the ProFund and the Portfolio, the lending of portfolio securities.

     9.  Invest more than an aggregate of 10% of the net assets of the ProFund
         or the Portfolio's, respectively, (taken, in each case, at current
         value) in (i) securities that cannot be readily resold to the public
         because of legal or contractual restrictions or because there are no
         market quotations readily available or (ii) other "illiquid" securities
         (including time deposits and repurchase agreements maturing in more
         than seven calendar days); provided, however, that nothing in this
         investment restriction shall prevent the Trust from investing all or
         part of the ProFund's assets in an open-end management investment
         company with substantially the same investment objective as the
         ProFund.

     10. Purchase more than 10% of the voting securities of any issuer or invest
         in companies for the purpose of exercising control or management;
         provided, however, that nothing in this investment




                                      B-11
<PAGE>   72



         restriction shall prevent the Trust from investing all or part of the
         ProFund's assets in an open-end management investment company with
         substantially the same investment objectives as the ProFund.

     11. Purchase securities of other investment companies, except to the extent
         permitted under the 1940 Act or in connection with a merger,
         consolidation, reorganization, acquisition of assets or an offer of
         exchange; provided, however, that nothing in this investment
         restriction shall prevent the Trust from investing all or part of the
         ProFunds' assets in an open-end management investment company with
         substantially the same investment objectives as the ProFund.

     12. Issue any senior securities, except insofar as it may be deemed to have
         issued a senior security by reason of (i) entering into a reverse
         repurchase agreement or (ii) borrowing in accordance with terms
         described in the Prospectus and this SAI.

     13. Purchase or retain the securities of any issuer if any of the officers
         or trustees of the ProFund or the Portfolio or Bankers Trust owns
         individually more than 1/2 of 1% of the securities of such issuer, and
         together such officers and directors own more than 5% of the securities
         of such issuer.

     14. Invest in warrants, except that the ProFund or the Portfolio may invest
         in warrants if, as a result, the investments (valued in each case at
         the lower of cost or market) would not exceed 5% of the value of the
         net assets of the ProFund or the Portfolio, as the case may be, of
         which not more than 2% of the net assets of the ProFund or the
         Portfolio, as the case may be, may be invested in warrants not listed
         on a recognized domestic stock exchange. Warrants acquired by the
         ProFund or the Portfolio as part of a unit or attached to securities at
         the time of acquisition are not subject to this limitation.

     ADDITIONAL RESTRICTIONS. In order to comply with certain statutes and
policies, the Portfolio (or Trust, on behalf of the Money Market ProFund) will
not as a matter of operating policy (except that no operating policy shall
prevent the ProFund from investing all of its assets in an open-end investment
company with substantially the same investment objective):

     (i)   borrow money (including through dollar roll transactions) for any
           purpose in excess of 10% of the Portfolio's (ProFund's) total assets
           (taken at cost), except that the Portfolio (ProFund) may borrow for
           temporary or emergency purposes up to 1/3 of its total assets;

     (ii)  pledge, mortgage or hypothecate for any purpose in excess of 10% of
           the Portfolio's (ProFund's) total assets (taken at market value),
           provided that collateral arrangements with respect to options and
           futures, including deposits of initial deposit and variation margin,
           are not considered a pledge of assets for purposes of this
           restriction;

     (iii) purchase any security or evidence of interest therein on margin,
           except that such short-term credit as may be necessary for the
           clearance of purchases and sales of securities may be obtained and
           except that deposits of initial deposit and variation margin may be
           made in connection with the purchase, ownership, holding or sale of
           futures;

     (iv)  sell any security which it does not own unless by virtue of its
           ownership of other securities it has at the time of sale a right to
           obtain securities, without payment of further consideration,
           equivalent in kind and amount to the securities sold and provided
           that if such right is conditional the sale is made upon the same
           conditions;

     (v)   invest for the purpose of exercising control or management;

     (vi)  purchase securities issued by any investment company except by
           purchase in the open market where no commission or profit to a
           sponsor or dealer results from such purchase other than the




                                      B-12
<PAGE>   73



           customary broker's commission, or except when such purchase, though
           not made in the open market, is part of a plan of merger or
           consolidation; provided, however, that securities of any investment
           company will not be purchased for the Portfolio (ProFund) if such
           purchase at the time thereof would cause (a) more than 10% of the
           Portfolio's (ProFund's) total assets (taken at the greater of cost or
           market value) to be invested in the securities of such issuers; (b)
           more than 5% of the Portfolio's (ProFund's) total assets (taken at
           the greater of cost or market value) to be invested in any one
           investment company; or (c) more than 3% of the outstanding voting
           securities of any such issuer to be held for the Portfolio (ProFund);
           and, provided further, that the Portfolio shall not invest in any
           other open-end investment company unless the Portfolio (ProFund) (1)
           waives the investment advisory fee with respect to assets invested in
           other open-end investment companies and (2) incurs no sales charge in
           connection with the investment (as an operating policy, each
           Portfolio will not invest in another open-end registered investment
           company);

     (vii) invest more than 15% of the Portfolio's (ProFund's) total net assets
           (taken at the greater of cost or market value) in securities that are
           illiquid or not readily marketable not including (a) Rule 144A
           securities that have been determined to be liquid by the Board of
           Trustees; and (b) commercial paper that is sold under section 4(2) of
           the 1933 Act which: (i) is not traded flat or in default as to
           interest or principal; and (ii) is rated in one of the two highest
           categories by at least two nationally recognized statistical rating
           organizations; (iii) is rated one of the two highest categories by
           one nationally recognized statistical rating agency and the
           Portfolio's (ProFund's) Board of Trustees have determined that the
           commercial paper is equivalent quality and is liquid;

     (viii)invest more than 5% of the Portfolio's (ProFund's) total assets in
           securities issued by issuers which (including predecessors) have been
           in operation less than three years;

     (ix)  invest more than 10% of the Portfolio's (ProFund's) total assets
           (taken at the greater of cost or market value) in securities that are
           restricted as to resale under the 1933 Act (other than Rule 144A
           securities deemed liquid by the Portfolio's (ProFund's) Board of
           Trustees);

     (x)   with respect to 75% of the Portfolio's (ProFund's) total assets,
           purchase securities of any issuer if such purchase at the time
           thereof would cause the Portfolio (ProFund) to hold more than 10% of
           any class of securities of such issuer, for which purposes all
           indebtedness of an issuer shall be deemed a single class and all
           preferred stock of an issuer shall be deemed a single class, except
           that futures or option contracts shall not be subject to this
           restriction;

     (xi)  if the Portfolio (ProFund) is a "diversified" ProFund with respect to
           75% of its assets, invest more than 5% of its total assets in the
           securities (excluding U.S. government securities) of any one issuer;

     (xii) purchase or retain in the Portfolio's (ProFund's) portfolio any
           securities issued by an issuer any of whose officers, directors,
           trustees or security holders is an officer or Trustee of the
           Portfolio (Trust), or is an officer or partner of the Adviser, if
           after the purchase of the securities of such issuer for the Portfolio
           (ProFund) one or more of such persons owns beneficially more than 1/2
           of 1% of the shares or securities, or both, all taken at market
           value, of such issuer, and such persons owning more than 1/2 of 1% of
           such shares or securities together own beneficially more than 5% of
           such shares or securities, or both, all taken at market value;

     (xiii)invest more than 5% of the Portfolio's (ProFund's) net assets in
           warrants (valued at the lower of cost or market) (other than warrants
           acquired by the Portfolio (ProFund) as part of a unit or attached to
           securities at the time of purchase), but not more than 2% of the
           Portfolio's (ProFund's) net assets may be invested in warrants not
           listed on the American Stock Exchange or the New York Stock Exchange,
           Inc. ("NYSE");


                                      B-13
<PAGE>   74



     (xiv) make short sales of securities or maintain a short position, unless
           at all times when a short position is open it owns an equal amount of
           such securities or securities convertible into or exchangeable,
           without payment of any further consideration, for securities of the
           same issue and equal in amount to, the securities sold short, and
           unless not more than 10% of the Portfolio's (ProFund's) net assets
           (taken at market value) is represented by such securities, or
           securities convertible into or exchangeable for such securities, at
           any one time (the Portfolio (ProFund) has no current intention to
           engage in short selling).

     The Money Market ProFund will comply with the state securities laws and
regulations of all states in which it is registered. The Portfolio will comply
with the permitted investments and investment limitations in the securities laws
and regulations of all states in which the Portfolio, or any other registered
investment company investing in the Portfolio, is registered.

                      PORTFOLIO TRANSACTIONS AND BROKERAGE


NON-MONEY MARKET PROFUNDS

     Subject to the general supervision by the Trustees, the Advisor is
responsible for decisions to buy and sell securities for each of the ProFunds,
the selection of brokers and dealers to effect the transactions, and the
negotiation of brokerage commissions, if any. The Advisor expects that the
ProFunds may execute brokerage or other agency transactions through registered
broker-dealers, for a commission, in conformity with the 1940 Act, the
Securities Exchange Act of 1934, as amended, and the rules and regulations
thereunder. The Advisor may serve as an investment manager to a number of
clients, including other investment companies. It is the practice of the Advisor
to cause purchase and sale transactions to be allocated among the ProFunds and
others whose assets the Advisor manages in such manner as the Advisor deems
equitable. The main factors considered by the Advisor in making such allocations
among the ProFunds and other client accounts of the Advisor are the respective
investment objectives, the relative size of portfolio holdings of the same or
comparable securities, the availability of cash for investment, the size of
investment commitments generally held, and the opinions of the person(s)
responsible, if any, for managing the portfolios of the ProFunds and the other
client accounts.

     The policy of each ProFund regarding purchases and sales of securities for
a ProFund's portfolio is that primary consideration will be given to obtaining
the most favorable prices and efficient executions of transactions. Consistent
with this policy, when securities transactions are effected on a stock exchange,
each ProFund's policy is to pay commissions which are considered fair and
reasonable without necessarily determining that the lowest possible commissions
are paid in all circumstances. Each ProFund believes that a requirement always
to seek the lowest possible commission cost could impede effective portfolio
management and preclude the ProFund and the Advisor from obtaining a high
quality of brokerage and research services. In seeking to determine the
reasonableness of brokerage commissions paid in any transaction, the Advisor
relies upon its experience and knowledge regarding commissions generally charged
by various brokers and on its judgment in evaluating the brokerage and research
services received from the broker effecting the transaction. Such determinations
are necessarily subjective and imprecise, as in most cases an exact dollar value
for those services is not ascertainable.

     Purchases and sales of U.S. government securities are normally transacted
through issuers, underwriters or major dealers in U.S. government securities
acting as principals. Such transactions are made on a net basis and do not
involve payment of brokerage commissions. The cost of securities purchased from
an underwriter usually includes a commission paid by the issuer to the
underwriters; transactions with dealers normally reflect the spread between bid
and asked prices.

     In seeking to implement a ProFund's policies, the Advisor effects
transactions with those brokers and dealers who the Advisor believes provide the
most favorable prices and are capable of providing efficient executions. If the
Advisor believes such prices and executions are obtainable from more than one
broker




                                      B-14
<PAGE>   75



or dealer, the Advisor may give consideration to placing portfolio transactions
with those brokers and dealers who also furnish research and other services to
the ProFund or the Advisor. Such services may include, but are not limited to,
any one or more of the following: information as to the availability of
securities for purchase or sale; statistical or factual information or opinions
pertaining to investment; wire services; and appraisals or evaluations of
portfolio securities. If the broker-dealer providing these additional services
is acting as a principal for its own account, no commissions would be payable.
If the broker-dealer is not a principal, a higher commission may be justified,
at the determination of the Advisor, for the additional services.

     The information and services received by the Advisor from brokers and
dealers may be of benefit to the Advisor in the management of accounts of some
of the Advisor's other clients and may not in all cases benefit a ProFund
directly. While the receipt of such information and services is useful in
varying degrees and would generally reduce the amount of research or services
otherwise performed by the Advisor and thereby reduce the Advisor's expenses,
this information and these services are of indeterminable value and the
management fee paid to the Advisor is not reduced by any amount that may be
attributable to the value of such information and services.

MONEY MARKET PROFUND AND THE PORTFOLIO

     Decisions to buy and sell securities and other financial instruments for
the Money Market ProFund and the Portfolio are made by Bankers Trust, which also
is responsible for placing these transactions, subject to the overall review of
the Portfolio's Board of Trustees. Although investment requirements for the
Portfolio are reviewed independently from those of the other accounts managed by
Bankers Trust (the "Other Portfolios"), investments of the type the Portfolio
may make may also be made by these Other Portfolios. When the Portfolio and one
or more Other Portfolios or accounts managed by Bankers Trust are prepared to
invest in, or desire to dispose of, the same security or other financial
instrument, available investments or opportunities for sales will be allocated
in a manner believed by Bankers Trust to be equitable to each. In some cases,
this procedure may affect adversely the price paid or received by the Portfolio
or the size of the position obtained or disposed of by the Portfolio.

     Purchases and sales of securities on behalf of the Portfolio usually are
principal transactions. These securities are normally purchased directly from
the issuer or from an underwriter or market maker for the securities. The cost
of securities purchased from underwriters includes an underwriting commission or
concession and the prices at which securities are purchased from and sold to
dealers include a dealer's mark-up or mark-down. U.S. government obligations are
generally purchased from underwriters or dealers, although certain newly issued
U.S. government obligations may be purchased directly from the U.S. Treasury or
from the issuing agency or instrumentality.

     Over-the-counter purchases and sales are transacted directly with principal
market makers except in those cases in which better prices and executions may be
obtained elsewhere and principal transactions are not entered into with persons
affiliated with the Portfolios except pursuant to exemptive rules or orders
adopted by the Commission. Under rules adopted by the Commission, broker-dealers
may not execute transactions on the floor of any national securities exchange
for the accounts of affiliated persons, but may effect transactions by
transmitting orders for execution.

     In selecting brokers or dealers to execute portfolio transactions on behalf
of the Portfolio, Bankers Trust seeks the best overall terms available. In
assessing the best overall terms available for any transaction, Bankers Trust
will consider the factors it deems relevant, including the breadth of the market
in the investment, the price of the investment, the financial condition and
execution capability of the broker or dealer and the reasonableness of the
commission, if any, for the specific transaction and on a continuing bases. In
addition, Bankers Trust is authorized, in selecting parties to execute a
particular transaction and in evaluating the best overall terms available to
consider the brokerage, but not research services (as those terms are defined in
Section 28(e) of the Securities Exchange Act of 1934, as amended) provided to
the Portfolio involved, the other Portfolios and/or other accounts over which
Bankers Trust or its affiliates




                                      B-15
<PAGE>   76



exercise investment discretion. Bankers Trust's fees under its agreements with
the Portfolios are not reduced by reason of its receiving brokerage services.

     The valuation of the Portfolio's securities is based on their amortized
cost, which does not take into account unrealized capital gains or losses.
Amortized cost valuation involves initially valuing an instrument at its cost
and thereafter assuming a constant amortization to maturity of any discount or
premium, generally without regard to the impact of fluctuating interest rates on
the market value of the instrument. Although this method provides certainty in
valuation, it may result in periods during which value, as determined by
amortized cost, is higher or lower than the price a Portfolio would receive if
it sold the instrument.

     The Portfolio's use of the amortized cost method of valuing its securities
is permitted by a rule adopted by the Commission. Under this rule, the Portfolio
must maintain a dollar-weighted average portfolio maturity of 90 days or less,
purchase only instruments having remaining maturities of 397 days or and invest
only in securities determined by or under the supervision of the Board of
Trustees to be of high quality with minimal credit risks.

     Pursuant to the rule, the Board of Trustees of the Portfolio also has
established procedures designed to allow investors in the Portfolio, such as the
Money Market ProFund, to stabilize, to the extent reasonably possible, the
investors' price per share as computed for the purpose of sales and redemptions
at $1.00. These procedures include review of the Portfolio's holdings by the
Portfolio's Board of Trustees, at such intervals as it deems appropriate, to
determine whether the value of the Portfolio's assets calculated by using
available market quotations or market equivalents deviates from such valuation
based on amortized cost.

     The rule also provides that the extent of any deviation between the value
of the Portfolio's assets based on available market quotations or market
equivalents and such valuation based on amortized cost must be examined by the
Portfolio's Board of Trustees. In the event the Portfolio's Board of Trustees
determines that a deviation exists that may result in material dilution or other
unfair results to investors or existing shareholders, pursuant to the rule, the
Portfolio's Board of Trustees must cause the Portfolio to take such corrective
action as such Board of Trustees regards as necessary and appropriate,
including: selling portfolio instruments prior to maturity to realize capital
gains or losses or to shorten average portfolio maturity; withholding dividends
or paying distributions from capital or capital gains; redeeming shares in kind;
or valuing the Portfolio's assets by using available market quotations.

     Each investor in the Portfolio, including the Money Market ProFund, may add
to or reduce its investment in the Portfolio on each day the Portfolio
determines its Net Asset Value ("NAV"). At the close of each such business day,
the value of each investor's beneficial interest in the Portfolio will be
determined by multiplying the NAV of the Portfolio by the percentage, effective
for that day, which represents that investor's share of the aggregate beneficial
interests in the Portfolio. Any additions or withdrawals, which are to be
effected as of the close of business on that day, will then be effected. The
investor's percentage of the aggregate beneficial interests in the Portfolio
will then be recomputed as the percentage equal to the fraction (i) the
numerator of which is the value of such investor's investment in the Portfolio
as of the close of business on such day plus or minus, as the case may be, the
amount of net additions to or withdrawals from the investor's investment in the
Portfolio effected as of the close of business on such day, and (ii) the
denominator of which is the aggregate NAV of the Portfolio as of the close of
business on such day plus or minus, as the case may be, the amount of net
additions to or withdrawals from the aggregate investments in the Portfolio by
all investors in the Portfolio. The percentage so determined will then be
applied to determine the value of the investor's interest in the Portfolio as of
the close of the following business day.



                                      B-16
<PAGE>   77
                             MANAGEMENT OF PROFUNDS

     The Board of Trustees is responsible for the general supervision of the
Trust's business. The day-to-day operations of the ProFunds are the
responsibilities of ProFunds' officers. The names and addresses (and ages) of
the Trustees of the Trust and the Portfolio, the officers of the Trust and the
Portfolio, and the officers of the Advisor, together with information as to
their principal business occupations during the past five years, are set forth
below. Fees and expenses for non-interested Trustees will be paid by the Trust;
Trustee expenses for interested Trustees will be paid by ProFund Advisors LLC.

TRUSTEES AND OFFICERS OF PROFUNDS

     Michael L. Sapir* (birthdate: May 19, 1958): Trustee, Chairman and Chief
Executive Officer; Chairman and Chief Executive Officer, ProFund Advisors LLC;
Principal, Law Offices of Michael L. Sapir; Rydex Distributors, Inc., President;
Padco Advisors, Inc., Senior Vice President, General Counsel; Jorden Burt
Berenson & Klingensmith, Partner. His address is 7900 Wisconsin Avenue, Suite
300, Bethesda, Maryland 20814.

     Louis M. Mayberg* (birthdate: August 9, 1962): Trustee, Secretary; ProFund
Advisors LLC, President; Potomac Securities, Inc., President; National Capital
Companies, LLC, Managing Director. His address is 7900 Wisconsin Avenue, Suite
300, Bethesda, Maryland 20814.

   
     Nimish Bhatt: (birthdate: June 6, 1963): Treasurer; BISYS Fund Services,
Vice President, Tax and Financial Services; Evergreen Funds/First Union Bank,
Assistant Vice President; Price Waterhouse LLP, Senior Tax Consultant. His
address is 3435 Stelzer Road, Columbus, Ohio 43219.
    

     Michael C. Wachs (birthdate: October 21, 1961): Trustee; Delancy Investment
Group, Inc., Vice President; First Union National Bank, Vice President/Senior
Underwriter; First Union Capital Markets Corp., Vice President; Vice
President/Senior Credit Officer; Vice President/Team Leader. His address is 1528
Powder Mill Lane, Wynnewood, Pennsylvania 19096.

     Russell S. Reynolds, III (birthdate: July 21, 1957): Trustee; Directorship,
Inc., Managing Director, Chief Financial Officer and Secretary; Quadcom
Services, Inc., President. His address is 7 Stag Lane, Greenwich, Connecticut
06831.

   
     James Gillespie (birthdate: November 12, 1966): Vice President; BISYS Fund
Services, Client Service Manager; BISYS Fund Services, Transfer Agency Control
Area Supervisor. His address is 3435 Stelzer Road, Columbus, Ohio 43219.
    

     *This Trustee is deemed to be an "interested person" within the meaning of
Section 2(a)(19) of the 1940 Act, inasmuch as this person is affiliated with the
Advisor, as described herein.

   
     As of April 6, 1998, the officers and trustees, as a group, own less than
1% of the outstanding shares of the ProFunds.
    

                           TRUSTEE COMPENSATION TABLE

   
     The following table reflects actual fees paid to the Trustees for the year
ended December 31, 1997.
    

   
<TABLE>
<CAPTION>
NAME OF
PERSON: POSITION                                                                                 COMPENSATION
- ----------------                                                                                 ------------
<S>                                                                                               <C>   
Michael L. Sapir, Trustee, Chairman and Chief Executive Officer                                      None

Louis M. Mayberg, Trustee, President,                                                                None
Secretary

Russell S. Reynolds, III, Trustee                                                                   $1,540

Michael C. Wachs, Trustee                                                                           $1,540

</TABLE>
    



                                      B-17
<PAGE>   78



TRUSTEES AND OFFICERS OF THE PORTFOLIO:

     The Board of Trustees of the Portfolio ("Portfolio Trustees") is composed
of persons experienced in financial matters who meet throughout the year to
oversee the activities of the Portfolio. In addition the Portfolio Trustees
review contractual arrangements with companies that provide services to the
Portfolio.

     The Portfolio Trustees and officers of the Portfolio, their birthdates and
their principal occupations during the past five years are set forth below.
Their titles may have varied during that period. Unless otherwise indicated the
address of each officer is Clearing Operations, P.O. Box 897, Pittsburgh,
Pennsylvania 15230-0897.

   Trustees of the Portfolio:

     Philip Saunders, Jr. (birthdate: October 11, 1935): Portfolio Trustee;
Principal, Philip Saunders Associates (Consulting); former Director of Financial
Industry Consulting, Wolf & Company; President, John Hancock Home Mortgage
Corporation; and Senior Vice President of Treasury and Financial Services, John
Hancock Mutual Life Insurance Company, Inc. His address is 445 Glen Road,
Weston, Massachusetts 02193.

     Charles P. Biggar (birthdate: October 13, 1930): Portfolio Trustee;
Retired; Director of Chase/NBW Bank Advisory Board; Director, Batement, Eichler,
Hill, Richards Inc.; formerly Vice President of International Business Machines
and President of the National Services and the Field Engineering Divisions of
IBM. His address is 12 Hitching Post Lane, Chappaqua, New York 10514.

     S. Leland Dill (birthdate: March 28, 1930): Portfolio Trustee; Retired;
Director, Coutts Group; Coutts (U.S.A.) International; Coutts Trust Holdings
Ltd; director, Sweig Series Trust; formerly Partner of KPMG Peat Marwick;
director, Vinters International Company Inc.; General Partner of Pemco (an
investment company registered under the 1940 Act). His address is 5070 North
Ocean Drive, Singer Island, Florida 33404.

   Officers of the Portfolio:

     Ronald M. Petnuch (birthdate: February 27, 1960): President and Treasurer;
Senior Vice President, Federated Services Company ("FSC"); formerly, Director of
Proprietary Client Services, Federated Administrative Services ("FAS"), and
Associate Corporate Counsel, Federated Investors ("FI").

     Charles L. Davis, Jr. (birthdate: March 23, 1960): Vice President and
Assistant Treasurer; Vice President, FAS.

     Jay S. Neuman (birthdate: April 22, 1950): Secretary; Corporate 
Counsel, FI.

     No person who is an officer or director of Bankers Trust is an officer or
Trustee of the Trust or the Portfolio. No director, officer or employee of BISYS
or any of its affiliates will receive any compensation from the Trust or
Portfolio for serving as an officer or Trustee of the Trust or the Portfolio.

                      PORTFOLIO TRUSTEE COMPENSATION TABLE

     The following table reflects fees paid to the Portfolio Trustees for the
year ended December 31, 1997.

   
<TABLE>
<CAPTION>
                                                                     AGGREGATE COMPENSATION
         NAME OF                                                            FROM CASH        TOTAL COMPENSATION
    PERSON; POSITION                                                  MANAGEMENT PORTFOLIO*  FROM FUND COMPLEX *
    ----------------                                                  ---------------------  -------------------
<S>                                                                           <C>               <C>    
Charles P. Biggar
Trustee, BT Institutional Funds and Portfolio                                   $641              $27,500

S. Leland Dill
Trustee, Portfolio                                                              $641              $27,500

Philip Saunders, Jr
Trustee, Portfolio                                                              $641              $27,500

</TABLE>
    



                                      B-18
<PAGE>   79



   
     As of April 1, 1998, the Portfolio Trustees and Officers owned in the
aggregate less than 1% of the shares of the Portfolio.
    

                               INVESTMENT ADVISERS

PROFUND ADVISORS LLC

   
     Under an investment advisory agreement between the ProFunds, other than the
Money Market ProFund, and the Advisor, dated October 28, 1997 and amended
February 18, 1998, each such ProFund pays the Advisor a fee at an annualized
rate, based on its average daily net assets of 0.75%. The Advisor manages the
investment and the reinvestment of the assets of each of the Funds, in
accordance with the investment objectives, policies, and limitations of the
ProFund, subject to the general supervision and control of Trustees and the
officers of ProFunds. The Advisor bears all costs associated with providing
these advisory services. The Advisor, from its own resources, including profits
from advisory fees received from the Funds, provided such Trustees are
legitimate and not excessive, also may make payments to broker-dealers and other
financial institutions for their expenses in connection with the distribution of
ProFunds' shares, and otherwise currently pays all distribution costs for
ProFunds' shares.
    

   
     For the fiscal year ended December 31, 1997, the Advisor was entitled to,
and voluntarily waived, advisory fees in the following amounts for each of the
ProFunds:

<TABLE>
<CAPTION>
                                                                            ADVISORY FEES
                                                                            FYE 12/31/97
                                                                  Earned                    Waived
       <S>                                                    <C>                       <C>
         Bull ProFund                                           $    28                   $    28
         UltraBull ProFund                                        1,609                     1,609
         Bear ProFund                                                52                        52
         UltraBear ProFund                                          615                       615
         UltraOTC ProFund                                           751                       751
         Money Market ProFund                                       ---                       ---

</TABLE>

     The UltraShort OTC ProFund had not commenced operations as of December 31,
1997.
    

BANKERS TRUST

     Under the terms of an investment advisory agreement (the "Advisory
Agreement") between the Portfolio and Bankers Trust, Bankers Trust manages the
Portfolio subject to the supervision and direction of the Board of Trustees of
the Portfolio. Bankers Trust will: (i) act in strict conformity with the
Portfolio's Declaration of Trust, the 1940 Act and the Investment Advisers Act
of 1940, as the same may from time to time be amended; (ii) manage the Portfolio
in accordance with the Portfolio's and/or the Money Market ProFund's investment
objectives, restrictions and policies, as stated herein and in the Prospectus;
(iii) make investment decisions for the Portfolio; and (iv) place purchase and
sale orders for securities and other financial instruments on behalf of the
Portfolio.

     Bankers Trust bears all expenses in connection with the performance of
services under the Advisory Agreement. The Money Market ProFund and the
Portfolio bear certain other expenses incurred in their operation, including:
taxes, interest, brokerage fees and commissions, if any; fees of Trustees of the
Trust or Portfolio who are not officers, directors or employees of Bankers
Trust, the Advisor, the administrator or any of their affiliates; SEC fees and
state Blue Sky qualification fees, if any; administrative and services fees;
certain insurance premiums, outside auditing and legal expenses, and costs of
maintenance of corporate existence; costs attributable to investor services,
including without limitation, telephone and personnel expenses; and printing
prospectuses and statements of additional information for regulatory purposes
and for distribution to existing shareholders; costs of shareholders' reports
and meetings of 




                                      B-19
<PAGE>   80

shareholders, officers and Trustees of the Trust or the Portfolio; and any 
extraordinary expenses.

   
     For the fiscal years ended December 31, 1997, 1996 and 1995, Bankers Trust
earned $6,544,181, $4,935,288 and $3,847,729, respectively, in compensation for
investment advisory services provided to the Portfolio. During the same periods,
Bankers Trust reimbursed $940,530, $761,230 and $578,251, respectively, to the
Portfolio to cover expenses.
    

     Bankers Trust may have deposit, loan and other commercial banking
relationships with the issuers of obligations which may be purchased on behalf
of the Portfolio, including outstanding loans to such issuers which could be
repaid in whole or in part with the proceeds of securities so purchased. Such
affiliates deal, trade and invest for their own accounts in such obligations and
are among the leading dealers of various types of such obligations. Bankers
Trust has informed the Portfolio that, in making its investment decisions, it
does not obtain or use material inside information in its possession or in the
possession of any of its affiliates. In making investment recommendations for
the Portfolio, Bankers Trust will not inquire or take into consideration whether
an issuer of securities proposed for purchase or sale by the Portfolio is a
customer of Bankers Trust, its parent or its subsidiaries or affiliates and, in
dealing with its customers, Bankers Trust, its parent, subsidiaries, and
affiliates will not inquire or take into consideration whether securities of
such customers are held by any fund managed by Bankers Trust or any such
affiliate.

      ADMINISTRATION, TRANSFER AGENT, FUND ACCOUNTING AGENT AND CUSTODIAN

     BISYS Fund Services Limited Partnership d/b/a BISYS Fund Services ("BISYS")
acts as Administrator to the ProFunds. The Administrator provides ProFunds with
all required general administrative services, including, without limitation,
office space, equipment, and personnel; clerical and general back office
services; bookkeeping, internal accounting, and secretarial services; the
determination of net asset values; and the preparation and filing of all
reports, registration statements, proxy statements, and all other materials
required to be filed or furnished by ProFunds and the Funds under Federal and
state securities laws. The Administrator also maintains the shareholder account
records for ProFunds, distributes dividends and distributions payable by the
ProFunds, and produces statements with respect to account activity for the
ProFunds and their shareholders. The Administrator pays all fees and expenses
that are directly related to the services provided by the Administrator to
ProFunds; each ProFund reimburses the Administrator for all fees and expenses
incurred by the Administrator which are not directly related to the services the
Administrator provides to the ProFunds under the service agreement.

     For its services as Administrator, each ProFund pays BISYS an annual fee
ranging from 0.15% of average daily net assets of $0 to $300 million to .05% of
average daily net assets of $1 billion and over. BISYS Funds Services, Inc.
("BFSI"), an affiliate of BISYS, acts as transfer agent and fund accounting
agent for the ProFunds, for which it receives additional fees. Additionally,
ProFunds and BISYS and BFSI have entered into an Omnibus Fee Agreement in which
the amount of compensation due and payable to BISYS shall be the greater of (i)
the aggregate fee amount due and payable for services pursuant to the
Administration, Fund Accounting and Transfer Agency Agreements and (ii) the
minimum relationship fee described as specific dollar amounts payable over a
period of ten calendar quarters ($1,100,000). The address for BISYS and BFSI is
3435 Stelzer Road, Suite 1000, Columbus, Ohio 43219.

   
     For the fiscal year ended December 31, 1997, BISYS, as Administrator, was
entitled to, and voluntarily waived, administration fees in the following
amounts for each of the ProFunds:

<TABLE>
<CAPTION>
                                                                         ADMINISTRATION FEES
                                                                            FYE 12/31/97
                                                                  Earned                    Waived
       <S>                                                     <C>                       <C>
        Bull ProFund                                                $  6                      $  6
        UltraBull ProFund                                            322                       322
        Bear ProFund                                                  10                        10
        UltraBear ProFund                                            123                       123
        UltraOTC Profund                                             150                       150

</TABLE>
    


                                      B-20
<PAGE>   81


   
<TABLE>
       <S>                                                     <C>                       <C>
        Money Market ProFund                                         422                       422

</TABLE>

     The UltraShort OTC ProFund had not commenced operations as of December 31,
1997.
    
     ProFunds Advisors LLC, pursuant to a separate Management Services
Agreement, performs certain client support and other administrative services on
behalf of the ProFunds and feeder fund management and administrative services to
the Money Market ProFund. These services include monitoring the performance of
the underlying investment company in which the Money Market ProFund invests,
coordinating the Money Market ProFund's relationship with that investment
company, and communicating with the Trust's Board of Trustees and shareholders
regarding such entity's performance and the Money Market ProFund's two tier
structure and, in general, assisting the Board of Trustees of the Trust in all
aspects of the administration and operation of the Money Market ProFund. For
these services, the ProFunds will pay to ProFunds Advisors LLC a fee at the
annual rate of .15% of its average daily net assets for all non-money market
ProFunds and .35% of its average daily net assets for the Money Market ProFund.

   
     For the fiscal year ended December 31, 1997, ProFunds Advisors LLC was
entitled to, and voluntarily waived, management services fees in the following
amounts for each of the ProFunds:

<TABLE>
<CAPTION>
                                                                      MANAGEMENT SERVICES FEES
                                                                            FYE 12/31/97
                                                                  Earned                    Waived
         <S>                                                       <C>                       <C>
         Bull ProFund                                              $  6                      $  6
         UltraBull ProFund                                          322                       322
         Bear ProFund                                                10                        10
         UltraBear ProFund                                          123                       123
         UltraOTC Profund                                           150                       150
         Money Market ProFund                                       984                       984

</TABLE>

     The UltraShort OTC ProFund had not commenced operations as of December 31,
1997.

    
     Under an Administration and Services Agreement, Bankers Trust is obligated
on a continuous basis to provide such administrative services as the Board of
Trustees of the Portfolio reasonably deems necessary for the proper
administration of the Portfolio. Bankers Trust will generally assist in all
aspects of the Portfolio's operations and will: supply and maintain office
facilities (which may be in Bankers Trust's own offices); statistical and
research data, data processing services, clerical, accounting, bookkeeping and
recordkeeping services (including, without limitation, the maintenance of such
books and records as are required under the 1940 Act and the rules thereunder,
except as maintained by other agents of the Portfolio); internal auditing,
executive and administrative services; and information and supporting data for
reports to and filings with the Commission and various state Blue Sky
authorities; supply supporting documentation for meetings of the Board of
Trustees; provide monitoring reports and assistance regarding compliance with
the Portfolio's Declaration of Trust, by-laws, investment objectives and
policies and with federal and state securities laws; arrange for appropriate
insurance coverage; calculate the net asset value, net income and realized
capital gains or losses of the Portfolio; and negotiate arrangements with, and
supervise and coordinate the activities of, agents and others retained to supply
services. Pursuant to a sub-administration agreement (the "Sub-Administration
Agreement") Federated Securities Company performs sub-administration duties for
the Portfolio as from time to time may be agreed upon by Bankers Trust and
Federated Securities Company. The Sub-Administration Agreement provides that
Federated Securities Company will receive such compensation as from time to time
may be agreed upon by Federated Securities Company and Bankers Trust. All such
compensation will be paid by Bankers Trust.

   
     For the fiscal years ended December 31, 1997, 1996 and 1995, Bankers Trust
earned compensation of $2,181,394, $1,645,096 and $1,282,576, respectively, for
administrative and other services provided to the Portfolio.
    


                                      B-21
<PAGE>   82



     UMB Bank, N.A. acts as custodian to the non-money market ProFunds. UMB
Bank, N.A.'s address is 928 Grand Avenue, Kansas City, Missouri.

                             INDEPENDENT ACCOUNTANTS

     Coopers & Lybrand LLP serves as independent auditors to the ProFunds.
Coopers & Lybrand LLP provides audit services, tax return preparation and
assistance and consultation in connection with certain SEC filings. Coopers &
Lybrand LLP is located at 100 East Broad Street, Columbus, Ohio 43215.

                                  LEGAL COUNSEL

   
     Dechert Price & Rhoads serves as counsel to the ProFunds. The firm's
address is 1775 Eye Street, N.W., Washington, DC 20006-2401,
    

                                   DISTRIBUTOR

     Concord Financial Group, Inc. will serve as the distributor and principal
underwriter in all fifty states and the District of Columbia. Concord Financial
Group, Inc. receives no compensation from the ProFunds for serving as
distributor. Concord Financial Group, Inc.'s address is 3435 Stelzer Road,
Columbus, Ohio 43219.

                            SHAREHOLDER SERVICES PLAN

     Each ProFund has adopted a Shareholder Services Plan (the "Plan") which
provides that each ProFund will make payments equal to 1.00% (on an annual
basis) of the average daily value of the net assets of such ProFund's Adviser
shares attributable to or held in the name of investment advisers and other
authorized institutions that sell Service Shares ("Authorized Firms") for
providing account administration services to their clients who are beneficial
owners of such shares. The Administrator may act as an Authorized Firm. The
Trust will enter into agreements ("Shareholder Services Agreements") with
Authorized Firms that purchase Service Shares on behalf of their clients. The
Shareholder Services Agreements will provide for compensation to the Authorized
Firms in an amount up to 1.00% (on an annual basis) of the average daily net
assets of the Service shares of the applicable ProFund attributable to or held
in the name of the Authorized Firm for its clients.

     The Trustees of the Trust, including a majority of the Trustees who are not
interested persons of the Trust and who have no direct or indirect financial
interest in the operation of the Plan or the related Shareholder Services
Agreements, voted to adopt the Plan and Shareholder Services Agreements at a
meeting called for the purpose of voting on such Plan and Shareholder Services
Agreements on October 28, 1997. The Plan and Shareholder Services Agreements
will remain in effect for a period of one year and will continue in effect
thereafter only if such continuance is specifically approved annually by a vote
of the Trustees in the manner described above. All material amendments of the
Plan must also be approved by the Trustees in the manner described above. The
Plan may be terminated at any time by a majority of the Trustees as described
above or by vote of a majority of the outstanding Service shares of the affected
ProFund. The Shareholder Services Agreements may be terminated at any time,
without payment of any penalty, by vote of a majority of the Trustees as
described above or by a vote of a majority of the outstanding Service Shares of
the affected ProFund on not more than 60 days' written notice to any other party
to the Shareholder Services Agreements. The Shareholder Services Agreements
shall terminate automatically if assigned. The Trustees have determined that, in
their judgment, there is a reasonable likelihood that the Plan will benefit the
ProFunds and holders of Service shares of such ProFunds. In the Trustees'
quarterly review of the Plan and Shareholder Services Agreements, they will
consider their continued appropriateness and the level of compensation provided
therein.

     The intent of the Plan and Shareholder Services Agreements is to procure
quality shareholder services




                                      B-22
<PAGE>   83



on behalf of ProFund shareholders; in adopting the Plan and Shareholder Services
Agreements, the Trustees considered the fact that such shareholder services may
have the effect of enhancing distribution of ProFund Service shares and growth
of the ProFunds. In light of this, the ProFunds intend to observe the procedural
requirements of Rule 12b-1 under the 1940 Act on considering the continued
appropriateness of the Plan and Shareholder Services Agreements.

   
     For the fiscal year ended December 31, 1997, each ProFund was entitled to,
and voluntarily waived, shareholder services fees in the following amounts:


<TABLE>
<CAPTION>
                                                                      SHAREHOLDER SERVICES FEES
                                                                            FYE 12/31/97
                                                                  Earned                    Waived
       <S>                                                      <C>                       <C>
         Bull ProFund                                              $  0                      $  0
         UltraBull ProFund                                          773                       773
         Bear ProFund                                                 0                         0
         UltraBear ProFund                                            0                         0
         UltraOTC Profund                                           379                       379
         Money Market ProFund                                         0                         0

</TABLE>

     The UltraShort OTC ProFund had not commenced operations as of December 31,
1997.
    

                               COSTS AND EXPENSES

     Each ProFund bears all expenses of its operations other than those assumed
by the Advisor or the Administrator. ProFund expenses include: the management
fee; the servicing fee (including administrative, transfer agent, and
shareholder servicing fees); custodian and accounting fees and expenses, legal
and auditing fees; securities valuation expenses; fidelity bonds and other
insurance premiums; expenses of preparing and printing prospectuses,
confirmations, proxy statements, and shareholder reports and notices;
registration Trustees and expenses; proxy and annual meeting expenses, if any;
all Federal, state, and local taxes (including, without limitation, stamp,
excise, income, and franchise taxes); organizational costs; and non-interested
Trustees' fees and expenses.

   
                                 CAPITALIZATION

         As of April 6, 1998, no person owned of record, or to the knowledge of
management beneficially owned five percent or more of the outstanding shares of
the ProFunds or classes except as set forth below:

<TABLE>
<CAPTION>
Money Market ProFund--INVESTOR SHARES                      Total Shares       Percentage

<S>                                                       <C>                   <C>
Stephen P. McCaffrey                                        475,616.260           26.65%
TRST Stephen P. McCaffrey Family Trust
DTD 1/27/93
4934 Via Cinta
San Diego, CA 92122

Steven Starkman and Cathy Starkman JTWROS                    95,567.780            5.35%
504 Windover Circle
Buffalo Grove, IL 60089

Elliot Schildkrout                                          141,010.850            7.90%
TRST Elliot Schildkrout Pension Plan
DTD 5/13/97
45 Monadnock Road
Newton, MA 02167
</TABLE>
    


                                      B-23
<PAGE>   84

   
<TABLE>
<S>                                                        <C>                   <C>  
Leonard R. Lumpkin                                           91,607.310            5.13%
624 Quail Drive
Los Angeles, CA 90065

Fifth Third Bank, Custodian                                  90,000.000            5.04%
Patrick J. Harvey IRA
3 Delwood Road
Chester, NJ 07930

Money Market ProFund--SERVICE SHARES                       Total Shares       Percentage

Independent Trust Corp--Cust. Funds 85                      284,730.955           15.46%
15255 S. 94th Ave., Ste. 300
Orland Park, IL 60462

Paul Levine                                                 504,088.170           27.37%
127 Kennard Road
Newberg, ME 04444

Trust Company of America                                    943,283.000          51.22%*
BO DGS
7103 S. Revere Pky
Englewood, CO 80112

*Disclaims beneficial ownership.

Bull ProFund--INVESTOR SHARES

None.

Bull ProFund--SERVICE SHARES                               Total Shares       Percentage

Donaldson Lufkin & Jenrette Securities Corp.                    524.476            6.18%
P.O. Box 2052
Jersey City, NJ 07303

Fifth Third Bank, Custodian                                     895.834           11.64%
John Lindner IRA
W. 998 Mary's Court
Rubicon, WI 53078

Fifth Third Bank, Custodian                                   1,381.274           17.95%
Jacquelynne J. Brisk IRA
W230 56248 Charles Drive
Waukesha, WI 53186

Fifth Third Bank, Custodian                                     768.675            9.99%
Truman J. Seiler III IRA
N49 W20320 Lisbon Road
Menomonee Falls, WI 53051

Fifth Third Bank, Custodian                                     723.670            9.40%
Barbara J. Seiler III IRA
</TABLE>
    


                                      B-24
<PAGE>   85



   
<TABLE>
<S>                                                            <C>               <C>   
N49 W20320 Lisbon Road
Menomonee Falls, WI 53051

Fifth Third Bank, Custodian                                     823.454           10.70%
Raynold A. Uecker IRA
W160 N. 9664 Colonial Drive
Germantown, WI 53022

Fifth Third Bank, Custodian                                   1,399.687           18.19%
May Huey Yu Lau IRA
25152 Calle Busca
Lake Forest, CA 92630

Fifth Third Bank, Custodian                                     402.145            5.23%
Jean Siegert IRA
4882 Pine Street
La Mesa, CA 91941

UltraBull ProFund--INVESTOR SHARES                         Total Shares       Percentage

Donaldson Lufkin & Jenrette Securities Corp.                387,448.551          27.12%*
P.O. Box 2052
Jersey City, NJ 07303

First Trust Corporation                                     770,253.531          53.92%*
Attn Datalynx House
P.O. Box 173736
Denver, CO 80217-3736

UltraBull ProFund--SERVICE SHARES                          Total Shares       Percentage

Independent Trust Corp.                                      58,734.818           22.38%
Cust. Funds 85
15255 S. 94th Ave, Ste. 300
Orland Park, IL 60462

Donaldson Lufkin & Jenrette Securities Corporation          199,215.936          75.92%*

*Disclaims beneficial ownership

Bear ProFund--INVESTOR CLASS SHARES                        Total Shares       Percentage

National Capital Group, Inc.                                  2,285.714           64.53%
7900 Wisconsin Ave. Ste. 300
Bethesda, MD 20814

Fifth Third Bank, Custodian                                     911.339           25.73%
Wayne Chu SEP IRA
18186 Chieftain Ct.
San Diego, CA 92127

Marjorie S. Wurman and Andrew L. Wurman JTEROS                  344.037            9.71%
11810 Kiva Dr.
Boynton Beach, FL 33437

</TABLE>
    


                                      B-25
<PAGE>   86



   
<TABLE>
Bear ProFund--SERVICE SHARES                               Total Shares       Percentage

<S>                                                           <C>               <C>   
Fifth Third Bank, Custodian                                     336.336           10.53%
Daniel Shui-Yum Tam IRA
12584 Sora Way
San Diego, CA 92129

Fifth Third Bank, Custodian                                     328.895           10.29%
Shirley Tam IRA
12584 Sora Way
San Diego, CA 92129

Fifth Third Bank, Custodian                                     296.210            9.27%
Wayne D. Gruenewald IRA
503 Roselle Ave.
El Cajon, CA 92021

Fifth Third Bank, Custodian                                   1,734.428           54.28%
May Huey Yu Lau IRA
25152 Calle Busca
Lake Forest, CA 92630

Fifth Third Bank, Custodian                                     498.320           15.60%
Jean Siegert IRA
4882 Pine Street
Le Mesa, CA 91941

UltraBear ProFund--INVESTOR SHARES                         Total Shares       Percentage

Donaldson Lufkin & Jenrette Securities Corp.                  6,362.242            9.92%
P.O. Box 2052
Jersey City, NJ 07303

Clayton A. Cardinal and Joan Cardinal JTWROS                 12,978.135           20.23%
48 Millstone Ct.
Langhorne, PA 19047-1538

Spring Creek Limited Partnership                             12,376.239           19.29%
c/o Elliot Mchildkrout
45 Monadnock Road
Chestnut Hill, MA 02167

Fifth Third Bank, Custodian                                   3,627.570            5.65%
Betty J. Hartley IRA
P.O. Box 1020
Mesquite, NV 89024

Betty J. Hartley                                              4,279.710            6.67%
P.O. Box 1020
Mesquite, NV 89024

Orion Partners I -- Bellatrix                                 6,206.339            9.67%
P.O. Box 1437
</TABLE>
    




                                      B-26
<PAGE>   87


   
<TABLE>
<S>                                                         <C>                 <C>   
Mesquite, NV 89024

Orion Partners I -- Melissa                                   6,723.305           10.48%
P.O. Box 1437
Mesquite, NV 89024

Fifth Third Bank, Custodian                                   6,514.258           10.15%
Thomas A. Loss SEP IRA
1330 Josephine Street
Berkeley, CA 94703

UltraBear ProFund--SERVICE SHARES                          Total Shares       Percentage

Donaldson Lufkin & Jenrette Securities Corp.                  6,581.950          60.70%*
P.O. Box 2052
Jersey City, NJ 07303

Carlos Flores and Maria L. Flores JTWROS                      4,260.324           39.29%
P.O. Box 1363
Mesquite, NV 89024

UltraOTC ProFund--INVESTOR SHARES                          Total Shares       Percentage

Donaldson Lufkin & Jenrette Securities Corp.                573,848.421           57.46%
P.O. Box 2052
Jersey City, NJ 07303

First Trust Corporation                                     179,298.246           17.95%
Attn:  Datalynx House
P.O. Box 173736
Denver, CO 80217-3736

*Disclaims beneficial ownership.

UltraOTC ProFund--SERVICE SHARES                           Total Shares       Percentage

Independent Trust Corp.                                      29,008.741            5.63%
Cust Funds 85
15255 S. 94th Ave., Ste 300

Donaldson Lufkin & Jenrette Securities Corp.                100,434.162           19.49%
P.O. Box 2052
Jersey City, NJ 07303

Ernst & Co.                                                 186,504.379           36.19%
Attn:  Mutual Funds Dept.
1 Battery Park Place
New York, NY 10004

Fifth Third Bank, Custodian                                  36,816.008            7.14%
James N. Brannan IRA
4781 West 212th Street
Fairview Park, OH 44126

</TABLE>

     Any shareholder beneficially owning or having discretionary voting
authority over more than 25% of a ProFund may be deemed to control the outcome
of any matter submitted for a vote of the shareholders of such ProFund.
    



                                      B-27
<PAGE>   88



                                    TAXATION

     Set forth below is a discussion of certain U.S. federal income tax issues
concerning the ProFunds and the purchase, ownership, and disposition of ProFund
share. This discussion does not purport to be complete or to deal with all
aspects of federal income taxation that may be relevant to shareholders in light
of their particular circumstances, nor to certain types of shareholders subject
to special treatment under the federal income tax laws (for example, banks and
life insurance companies). This discussion is based upon present provisions of
the Internal Revenue Code of 1986, as amended (the "Code"), the regulations
promulgated thereunder, and judicial and administrative ruling authorities, all
of which are subject to change, which change may be retroactive. Prospective
investors should consult their own tax advisors with regard to the federal tax
consequences of the purchase, ownership, or disposition of ProFund shares, as
well as the tax consequences arising under the laws of any state, foreign
country, or other taxing jurisdiction.

     Each ProFund intends to be taxed as a regulated investment company under
Subchapter M of the Code. Accordingly, each ProFund generally must, among other
things, (a) derive in each taxable year at least 90% of its gross income from
dividends, interest, payments with respect to certain securities loans, and
gains from the sale or other disposition of stock, securities or foreign
currencies, or other income derived with respect to its business of investing in
such stock, securities or currencies; (b) in each taxable year beginning before
August 6, 1997, derive less than 30% of its gross income from the sale or other
disposition of certain assets held less than three months, namely: (i) stock or
securities; (ii) options, futures, or forward contracts (other than those on
foreign currencies) that are not directly related to the ProFund's principal
business of investing in stock or securities (or options and futures with
respect to stock or securities); and (c) diversify its holdings so that, at the
end of each fiscal quarter, (i) at least 50% of the market value of the
ProFund's assets is represented by cash, U.S. government securities, the
securities of other regulated investment companies and other securities, with
such other securities limited, in respect of any one issuer, to an amount not
greater than 5% of the value of the ProFund's total assets and 10% of the
outstanding voting securities of such issuer, and (ii) not more than 25% of the
value of its total assets is invested in the securities of any one issuer (other
than U.S. government securities and the securities of other regulated investment
companies).

     As a regulated investment company, a ProFund generally will not be subject
to U.S. federal income tax on income and gains that it distributes to
shareholders, if at least 90% of the ProFund's investment company taxable income
(which includes, among other items, dividends, interest and the excess of any
net short-term capital gains over net long-term capital losses) for the taxable
year is distributed. Each ProFund intends to distribute substantially all of
such income.

     Amounts not distributed on a timely basis in accordance with a calendar
year distribution requirement are subject to a nondeductible 4% excise tax at
the ProFund level. To avoid the tax, each ProFund must distribute during each
calendar year an amount equal to the sum of (1) at least 98% of its ordinary
income (not taking into account any capital gains or losses) for the calendar
year, (2) at least 98% of its capital gains in excess of its capital losses
(adjusted for certain ordinary losses) for a one-year period generally ending on
October 31 of the calendar year, and (3) all ordinary income and capital gains
for previous years that were not distributed during such years. To avoid
application of the excise tax, the ProFunds intend to make distributions in
accordance with the calendar year distribution requirement. A distribution will
be treated as paid on December 31 of a calendar year if it is declared by the
ProFund in October, November or December of that year with a record date in such
a month and paid by the ProFund during January of the following year. Such
distributions will be taxable to shareholders in the calendar year in which the
distributions are declared, rather than the calendar year in which the
distributions are received.

                                 MARKET DISCOUNT

     If ProFund purchases a debt security at a price lower than the stated
redemption price of such debt security, the excess of the stated redemption
price over the purchase price is "market discount". If the




                                      B-28
<PAGE>   89



amount of market discount is more than a de minimis amount, a portion of such
market discount must be included as ordinary income (not capital gain) by the
ProFund in each taxable year in which the ProFund owns an interest in such debt
security and receives a principal payment on it. In particular, the ProFund will
be required to allocate that principal payment first to the portion of the
market discount on the debt security that has accrued but has not previously
been includable in income. In general, the amount of market discount that must
be included for each period is equal to the lesser of (i) the amount of market
discount accruing during such period (plus any accrued market discount for prior
periods not previously taken into account) or (ii) the amount of the principal
payment with respect to such period. Generally, market discount accrues on a
daily basis for each day the debt security is held by a ProFund at a constant
rate over the time remaining to the debt security's maturity or, at the election
of the ProFund, at a constant yield to maturity which takes into account the
semi-annual compounding of interest. Gain realized on the disposition of a
market discount obligation must be recognized as ordinary interest income (not
capital gain) to the extent of the "accrued market discount."

                             ORIGINAL ISSUE DISCOUNT

     Certain debt securities acquired by the ProFunds may be treated as debt
securities that were originally issued at a discount. Original issue discount
can generally be defined as the difference between the price at which a security
was issued and its stated redemption price at maturity. Although no cash income
is actually received by a ProFund, original issue discount that accrues on a
debt security in a given year generally is treated for federal income tax
purposes as interest and, therefore, such income would be subject to the
distribution requirements applicable to regulated investment companies.

     Some debt securities may be purchased by the ProFunds at a discount that
exceeds the original issue discount on such debt securities, if any. This
additional discount represents market discount for federal income tax purposes
(see above).

             OPTIONS, FUTURES AND FOREIGN CURRENCY FORWARD CONTRACTS

     Any Regulated futures contracts and certain options (namely, nonequity
options and dealer equity options) in which a ProFund may invest may be "section
1256 contracts." Gains (or losses) on these contracts generally are considered
to be 60% long-term and 40% short-term capital gains or losses; however foreign
currency gains or losses arising from certain section 1256 contracts are
ordinary in character. Also, section 1256 contracts held by a ProFund at the end
of each taxable year (and on certain other dates prescribed in the Code) are
"marked to market" with the result that unrealized gains or losses are treated
as though they were realized.

     Transactions in options, futures and forward contracts undertaken by the
ProFunds may result in "straddles" for federal income tax purposes. The straddle
rules may affect the character of gains (or losses) realized by a ProFund, and
losses realized by the ProFund on positions that are part of a straddle may be
deferred under the straddle rules, rather than being taken into account in
calculating the taxable income for the taxable year in which the losses are
realized. In addition, certain carrying charges (including interest expense)
associated with positions in a straddle may be required to be capitalized rather
than deducted currently. Certain elections that a ProFund may make with respect
to its straddle positions may also affect the amount, character and timing of
the recognition of gains or losses from the affected positions.

     Because only a few regulations implementing the straddle rules have been
promulgated, the consequences of such transactions to the ProFunds are not
entirely clear. The straddle rules may increase the amount of short-term capital
gain realized by a ProFund, which is taxed as ordinary income when distributed
to shareholders. Because application of the straddle rules may affect the
character of gains or losses, defer losses and/or accelerate the recognition of
gains or losses from the affected straddle positions, the amount which must be
distributed to shareholders as ordinary income or long-term capital gain may be
increased or decreased substantially as compared to a fund that did not engage
in such transactions.


                                      B-29
<PAGE>   90



                               CONSTRUCTIVE SALES

     Recently enacted rules may affect the timing and character of gain if a
ProFund engages in transactions that reduce or eliminate its risk of loss with
respect to appreciated financial positions. If the ProFund enters into certain
transactions in property while holding substantially identical property, the
ProFund would be treated as if it had sold and immediately repurchased the
property and would be taxed on any gain (but not loss) from the constructive
sale. The character of gain from a constructive sale would depend upon the
ProFund's holding period in the property. Loss from a constructive sale would be
recognized when the property was subsequently disposed of, and its character
would depend on the ProFund's holding period and the application of various loss
deferral provisions of the Code.

                      PASSIVE FOREIGN INVESTMENT COMPANIES

     The ProFund may invest in shares of foreign corporations that may be
classified under the Code as passive foreign investment companies ("PFICs"). In
general, a foreign corporation is classified as a PFIC if at least one-half of
its assets constitute investment-type assets, or 75% or more of its gross income
is investment-type income. If a ProFund receives a so-called "excess
distribution" with respect to PFIC stock, the ProFund itself may be subject to a
tax on a portion of the excess distribution, whether or not the corresponding
income is distributed by the ProFund to shareholders. In general, under the PFIC
rules, an excess distribution is treated as having been realized ratably over
the period during which the ProFund held the PFIC shares. Each ProFund will
itself be subject to tax on the portion, if any, of an excess distribution that
is so allocated to prior ProFund taxable years and an interest factor will be
added to the tax, as if the tax had been payable in such prior taxable years.
Certain distributions from a PFIC as well as gain from the sale of PFIC shares
are treated as excess distributions. Excess distributions are characterized as
ordinary income even though, absent application of the PFIC rules, certain
excess distributions might have been classified as capital gains.

     The ProFund may be eligible to elect alternative tax treatment with respect
to PFIC shares. Under an election that currently is available in some
circumstances, a ProFund generally would be required to include in its gross
income its share of the earnings of a PFIC on a current basis, regardless of
whether distributions were received from the PFIC in a given year. If this
election were made, the special rules, discussed above, relating to the taxation
of excess distributions, would not apply. In addition, another election would
involve marking to market the ProFund's PFIC shares at the end of each taxable
year, with the result that unrealized gains would be treated as though they were
realized and reported as ordinary income. Any mark-to-market losses and any loss
from an actual disposition of ProFund shares would be deductible as ordinary
losses to the extent of any net mark-to-market gains included in income in prior
years.

                                  DISTRIBUTIONS

     Distributions of investment company taxable income are taxable to a U.S.
shareholder as ordinary income, whether paid in cash or shares. Dividends paid
by a ProFund to a corporate shareholder, to the extent such dividends are
attributable to dividends received from U.S. corporations by the ProFund, may
qualify for the dividends received deduction. However, the revised alternative
minimum tax applicable to corporations may deduct the value of the dividends
received deduction. Distributions of net capital gains (the excess of net
long-term capital gains over net short-term capital losses), if any, designated
by the ProFund as capital gain dividends, whether paid in cash or in shares, are
taxable as gain from the sale or exchange of an asset held for more than one
year, regardless of how long the shareholder has held the ProFund's shares. The
ProFunds expect that such distributions will be taxable to shareholders as
long-term capital gain, although the matter is not free from doubt. Capital
gains dividends are not eligible for the dividends received deduction.

     Shareholders will be notified annually as to the U.S. federal tax status of
distributions, and shareholders receiving distributions in the form of newly
issued shares will receive a report as to the net 




                                      B-30
<PAGE>   91



asset value of the shares received.

     If the net asset value of shares is reduced below a shareholder's cost as a
result of a distribution by a ProFund, such distribution generally will be
taxable even though it represents a return of invested capital. Investors should
be careful to consider the tax implications of buying shares of a ProFund just
prior to a distribution. The price of shares purchased at this time will include
the amount of the forthcoming distribution, but the distribution will generally
be taxable.

                              DISPOSITION OF SHARES

     Upon a redemption, sale or exchange of shares of a ProFund, a shareholder
will realize a taxable gain or loss depending upon his or her basis in the
shares. A gain or loss will be treated as capital gain or loss if the shares are
capital assets in the shareholder's hands and generally will be long-term,
mid-term or short-term, depending upon the shareholder's holding period for the
shares. Any loss realized on a redemption, sale or exchange will be disallowed
to the extent the shares disposed of are replaced (including through
reinvestment of dividends) within a period of 61 days, beginning 30 days before
and ending 30 days after the shares are disposed of. In such a case the basis of
the shares acquired will be adjusted to reflect the disallowed loss. Any loss
realized by a shareholder on the disposition of a ProFund's shares held by the
shareholder for six months or less will be treated for tax purposes as a
long-term capital loss to the extent of any distributions of capital gain
dividends received or treated as having been received by the shareholder with
respect to such shares.

                               BACKUP WITHHOLDING

     Each ProFund generally will be required to withhold federal income tax at a
rate of 31% ("backup withholding") from dividends paid, capital gain
distributions, and redemption proceeds to shareholders if (1) the shareholder
fails to furnish the ProFund with the shareholder's correct taxpayer
identification number or social security number, (2) the IRS notifies the
shareholder or the ProFund that the shareholder has failed to report properly
certain interest and dividend income to the IRS and to respond to notices to
that effect, or (3) when required to do so, the shareholder fails to certify
that he or she is not subject to backup withholding. Any amounts withheld may be
credited against the shareholder's federal income tax liability.

                                 OTHER TAXATION

     Distributions may be subject to additional state, local and foreign taxes,
depending on each shareholder's particular situation. Non-U.S. shareholders and
certain types of U.S. shareholders subject to special treatment under the U.S.
federal income tax laws (e.g. banks and life insurance companies) may be subject
to U.S. tax rules that differ significantly from those summarized above.

                             EQUALIZATION ACCOUNTING

     Each ProFund distributes its net investment income and capital gains to
shareholders as dividends annually to the extent required to qualify as a
regulated investment company under the Code and generally to avoid federal
income or excise tax. Under current law, each ProFund may on its tax return
treat as a distribution of investment company taxable income and net capital
gain the portion of redemption proceeds paid to redeeming shareholders that
represents the redeeming shareholders' portion of the ProFund's undistributed
investment company taxable income and net capital gain. This practice, which
involves the use of equalization accounting, will have the effect of reducing
the amount of income and gains that the ProFund is required to distribute as
dividends to shareholders in order for the ProFund to avoid federal income tax
and excise tax. This practice may also reduce the amount of distributions
required to be made to nonredeeming shareholders and the amount of any
undistributed income will be reflected in the value of the ProFund's shares; the
total return on a shareholder's investment will not be reduced as a result of
the ProFund's distribution policy. Investors who purchase shares shortly before
the record date of a distribution will pay the full price for the shares and
then receive some portion of the price back as a



                                      B-31
<PAGE>   92
taxable distribution.


                             PERFORMANCE INFORMATION

TOTAL RETURN CALCULATIONS

     From time to time, each of the non-money market ProFunds may advertise the
total return of the ProFund for prior periods. Any such advertisement would
include at least average annual total return quotations for one, five, and
ten-year periods, or for the life of the ProFund. Other total return quotations,
aggregate or average, over other time periods for the ProFund also may be
included.

     The total return of a ProFund for a particular period represents the
increase (or decrease) in the value of a hypothetical investment in the ProFund
from the beginning to the end of the period. Total return is calculated by
subtracting the value of the initial investment from the ending value and
showing the difference as a percentage of the initial investment; this
calculation assumes that the initial investment is made at the current net asset
value and that all income dividends or capital gains distributions during the
period are reinvested in shares of the ProFund at net asset value. Total return
is based on historical earnings and asset value fluctuations and is not intended
to indicate future performance. No adjustments are made to reflect any income
taxes payable by shareholders on dividends and distributions paid by the
ProFund.

     Average annual total return quotations for periods of two or more years are
computed by finding the average annual compounded rate of return over the period
that would equal the initial amount invested to the ending redeemable value.

   
     The aggregate return for each operational ProFund for the period ended 
December 31, 1997, since inception was as follows:
    

   
<TABLE>
<CAPTION>
                                                                  INVESTOR SHARES
                                                       Inception Date        Aggregate Return
<S>                                                     <C>                    <C>
Bull ProFund                                              12/02/97                -1.10%
UltraBull ProFund                                         11/28/97                 2.90%
Bear ProFund                                              12/31/97                 0.00%
UltraBear ProFund                                         12/23/97                 3.60%
UltraOTC ProFund                                          12/02/97               -16.40%
Money Market ProFund                                      11/17/97                 0.61%

                                                                  SERVICE SHARES
                                                       Inception Date        Aggregate Return
Bull ProFund                                              12/02/97                -1.10%
UltraBull ProFund                                         11/28/97                 2.90%
Bear ProFund                                              12/31/97                 0.00%
UltraBear ProFund                                         12/23/97                 3.50%
UltraOTC ProFund                                          12/02/97               -16.40%
Money Market ProFund                                      11/17/97                 0.21%

</TABLE>

     This performance data represents past performance and is not an indication
of future results.
    


YIELD CALCULATIONS

     From time to time, the Money Market ProFund advertises its "yield" and
"effective yield." Both yield figures are based on historical earnings and are
not intended to indicate future performance. The "yield" of the Money Market
ProFund refers to the income generated by an investment in the Money Market
ProFund over a seven-day period (which period will be stated in the
advertisement). This income is then




                                      B-32
<PAGE>   93



"annualized." That is, the amount of income generated by the investment during
that week is assumed to be generated each week over a 52-week period and is
shown as a percentage of the investment. The "effective yield" is calculated
similarly, but, when annualized, the income earned by an investment in the Money
Market ProFund is assumed to be reinvested. The "effective yield" will be
slightly higher than the "yield" because of the compounding effect of this
assumed reinvestment.

     Since yield fluctuates, yield data cannot necessarily be used to compare an
investment in the Money Market ProFund's shares with bank deposits, savings
accounts, and similar investment alternatives which often provide an agreed or
guaranteed fixed yield for a stated period of time. Shareholders of the Money
Market ProFund should remember that yield generally is a function of the kind
and quality of the instrument held in portfolio, portfolio maturity, operating
expenses, and market conditions.

   
         For the seven-day period ended December 31, 1997, the seven-day
effective yield for the Investor Shares and Service Shares of the Money Market
ProFund was 4.86% and 3.84%, respectively.
    

COMPARISONS OF INVESTMENT PERFORMANCE

     In conjunction with performance reports, promotional literature, and/or
analyses of shareholder service for a ProFund, comparisons of the performance
information of the ProFund for a given period to the performance of recognized,
unmanaged indexes for the same period may be made. Such indexes include, but are
not limited to, ones provided by Dow Jones & Company, Standard & Poor's
Corporation, Lipper Analytical Services, Inc., Shearson Lehman Brothers, the
National Association of Securities Dealers, Inc., The Frank Russell Company,
Value Line Investment Survey, the American Stock Exchange, the Philadelphia
Stock Exchange, Morgan Stanley Capital International, Wilshire Associates, the
Financial Times-Stock Exchange, and the Nikkei Stock Average and Deutcher
Aktienindex, all of which are unmanaged market indicators. Such comparisons can
be a useful measure of the quality of a ProFund's investment performance. In
particular, performance information for the Bull ProFund, the UltraBull ProFund,
the Bear ProFund and the UltraBear ProFund may be compared to various unmanaged
indexes, including, but not limited to, the S&P 500 Index or the Dow Jones
Industrial Average; performance information for the UltraOTC ProFund may be
compared to various unmanaged indexes, including, but not limited to its current
benchmark, the NASDAQ 100 Index.

     In addition, rankings, ratings, and comparisons of investment performance
and/or assessments of the quality of shareholder service appearing in
publications such as Money, Forbes, Kiplinger's Magazine, Personal Investor,
Morningstar, Inc., and similar sources which utilize information compiled (i)
internally, (ii) by Lipper Analytical Services, Inc. ("Lipper"), or (iii) by
other recognized analytical services, may be used in sales literature. The total
return of each ProFund (other than the Money Market ProFund) also may be
compared to the performances of broad groups of comparable mutual funds with
similar investment goals, as such performance is tracked and published by such
independent organizations as Lipper and CDA Investment Technologies, Inc., among
others. The Lipper ranking and comparison, which may be used by the ProFunds in
performance reports, will be drawn from the "Capital Appreciation ProFunds"
grouping for the Bull ProFund, the UltraBull ProFund, the Bear ProFund and the
UltraBear ProFund and from the "Small Company Growth ProFunds" grouping for the
UltraOTC ProFund. In addition, the broad-based Lipper groupings may be used for
comparison to any of the ProFunds.

     Further information about the performance of the ProFunds will be contained
in the ProFunds' annual reports to shareholders, which may be obtained without
charge by writing to the ProFunds at the address or telephoning the ProFunds at
telephone number set forth on the cover page of this Prospectus.

RATING SERVICES

     The ratings of Moody's Investors Service, Inc. and Standard & Poor's
Ratings Group represent their opinions as to the quality of the securities that
they undertake to rate. It should be emphasized, however, that ratings are
relative and subjective and are not absolute standards of quality. Although
these ratings are an initial criterion for selection of portfolio investments,
Bankers Trust also makes its own evaluation of




                                      B-33
<PAGE>   94



these securities, subject to review by the Board of Trustees. After purchase by
the Portfolio, an obligation may cease to be rated or its rating may be reduced
below the minimum required for purchase by the Portfolio. Neither event would
require the Portfolio to eliminate the obligation from its portfolio, but
Bankers Trust will consider such an event in its determination of whether the
Portfolio should continue to hold the obligation. A description of the ratings
used herein and in the Prospectus is set forth in the Appendix to this SAI.

   
FINANCIAL STATEMENTS

     The Report of Independent Accountants and Financial Statements of the
ProFunds for the fiscal year ended December 31, 1997 are incorporated herein by
reference to the Trust's Annual Report, such Financial Statements having been
audited by Coopers & Lybrand LLP, independent accountants, and are so included 
and incorporated by reference in reliance upon the report of said firm, which 
report is given upon their authority as experts in auditing and accounting. 
Copies of such Annual Report are available without charge upon request by 
writing to ProFunds, 3435 Stelzer Road, Columbus, Ohio 43219-8006 or 
telephoning (888) 776-3637.
    

     NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS NOT CONTAINED IN THE PROSPECTUS, OR IN THIS STATEMENT OF
ADDITIONAL INFORMATION INCORPORATED HEREIN BY REFERENCE, IN CONNECTION WITH THE
OFFERING MADE BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR
PRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY PROFUNDS.
THIS STATEMENT OF ADDITIONAL INFORMATION DOES NOT CONSTITUTE AN OFFERING BY
PROFUNDS IN ANY JURISDICTION IN WHICH SUCH AN OFFERING MAY NOT LAWFULLY BE MADE.



                                      B-34
<PAGE>   95



                                    APPENDIX

                        DESCRIPTION OF SECURITIES RATINGS

DESCRIPTION OF S&P'S CORPORATE RATINGS:

     AAA-Bonds rated AAA have the highest rating assigned by S&P to a debt
obligation. Capacity to pay interest and repay principal is extremely strong.

     AA-Bonds rated AA have a very strong capacity to pay interest and repay
principal and differ from the highest rated issuers only in small degree.

     S&P's letter ratings may be modified by the addition of a plus or a minus
sign, which is used to show relative standing within the major categories,
except in the AAA rating category.

DESCRIPTION OF MOODY'S CORPORATE BOND RATINGS:

     Aaa-Bonds which are rated Aaa are judged to be 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 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.

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

DESCRIPTION OF FITCH INVESTORS SERVICE'S CORPORATE BOND RATINGS:

     AAA-Securities of this rating are regarded as strictly high-grade, broadly
marketable, suitable for investment by trustees and fiduciary institutions, and
liable to but slight market fluctuation other than through changes in the money
rate. The factor last named is of importance varying with the length of
maturity. Such securities are mainly senior issues of strong companies, and are
most numerous in the railway and public utility fields, though some industrial
obligations have this rating. The prime feature of an AAA rating is showing of
earnings several times or many times interest requirements with such stability
of applicable earnings that safety is beyond reasonable question whatever
changes occur in conditions. Other features may enter in, such as a wide margin
of protection through collateral security or direct lien on specific property as
in the case of high class equipment certificates or bonds that are first
mortgages on valuable real estate. Sinking funds or voluntary reduction of the
debt by call or purchase are often factors, while guarantee or assumption by
parties other than the original debtor may also influence the rating.

     AA-Securities in this group are of safety virtually beyond question, and as
a class are readily salable while many are highly active. Their merits are not
greatly unlike those of the AAA class, but a security so rated may be of junior
though strong lien in many cases directly following an AAA security or the
margin of safety is less strikingly broad. The issue may be the obligation of a
small company, strongly secure but influenced as the ratings by the lesser
financial power of the enterprise and more local type of market.
Description of Duff & Phelps' corporate bond ratings:


                                      B-35
<PAGE>   96



     AAA-Highest credit quality. The risk factors are negligible, being only
slightly more than for risk-free U.S. Treasury Funds.

     AA+, AA,-High credit quality. Protection factors are strong. Risk is modest
but may vary slightly from time to time because of economic conditions.

DESCRIPTION OF S&P'S MUNICIPAL BOND RATINGS:

     AAA-Prime-These are obligations of the highest quality. They have the
strongest capacity for timely payment of debt service.

     General Obligation Bonds-In a period of economic stress, the issuers will
suffer the smallest declines in income and will be least susceptible to
autonomous decline. Debt burden is moderate. A strong revenue structure appears
more than adequate to meet future expenditure requirements. Quality of
management appears superior.

     Revenue Bonds-Debt service coverage has been, and is expected to remain,
substantial; stability of the pledged revenues is also exceptionally strong due
to the competitive position of the municipal enterprise or to the nature of the
revenues. Basic security provisions (including rate covenant, earnings test for
issuance of additional bonds and debt service reserve requirements) are
rigorous. There is evidence of superior management.

     AA-High Grade-The investment characteristics of bonds in this group are
only slightly less marked than those of the prime quality issues. Bonds rated AA
have the second strongest capacity for payment of debt service.

     S&P's letter ratings may be modified by the addition of a plus or a minus
sign, which is used to show relative standing within the major rating
categories, except in the AAA rating category.

DESCRIPTION OF MOODY'S MUNICIPAL BOND RATINGS:

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

     Aa-Bonds which are rated Aa 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.

     Moody's may apply the numerical modifier in each generic rating
classification from Aa through B. The modifier 1 indicates that the security
within its generic rating classification possesses the strongest investment
attributes.

DESCRIPTION OF S&P'S MUNICIPAL NOTE RATINGS:

     Municipal notes with maturities of three years or less are usually given
note ratings (designated SP-1 or SP-2) to distinguish more clearly the credit
quality of notes as compared to bonds. Notes rated SP-1 have a very strong or
strong capacity to pay principal and interest. Those issues determined to
possess overwhelming safety characteristics are given the designation of SP-1+.
Notes rated SP-2 have a satisfactory capacity to pay principal and interest.

DESCRIPTION OF MOODY'S MUNICIPAL NOTE RATINGS:


                                      B-36
<PAGE>   97



     Moody's ratings for state and municipal notes and other short-term loans
are designated Moody's Investment Grade (MIG) and for variable rate demand
obligations are designated Variable Moody's Investment Grade (VMIG). This
distinction recognizes the differences between short-term credit risk and
long-term risk. Loans bearing the designation MIG-1/VMIG-1 are of the best
quality, enjoying strong protection from established cash flows of funds for
their servicing or from established and broad-based access to the market for
refinancing, or both. Loans the designation MIG-2/VIMG-2 are of high quality,
with ample margins of protection, although not as large as the preceding group.

DESCRIPTION OF S&P COMMERCIAL PAPER RATINGS:

     Commercial paper rated A-1 by S&P indicates that the degree of safety
regarding timely payment is either overwhelming or very strong. Those issues
determined to posses overwhelming safety characteristics are denoted A-1+.

DESCRIPTION OF MOODY'S COMMERCIAL PAPER RATINGS:

     The rating Prime-1 is the highest commercial paper rating assigned by
Moody's. Issuers rated Prime-1 (or related supporting institutions) are
considered to have a superior capacity for repayment of short-term promissory
obligations.

DESCRIPTION OF FITCH INVESTORS SERVICE'S COMMERCIAL PAPER RATINGS:

     F-1+-Exceptionally Strong Credit Quality. Issues assigned this rating are
regarded as having the strongest degree of assurance for timely payment.

     F-1-Very Strong Credit Quality. Issues assigned this rating reflect an
assurance of timely payment only slightly less in degree than the strongest
issue.

DESCRIPTION OF DUFF & PHELPS' COMMERCIAL PAPER RATINGS:

     Duff 1+-Highest certainly of timely payment. Short term liquidity,
including internal operating factors and/or access to alternative sources of
funds, is outstanding, and safety is just below risk free U.S. Treasury short
term obligations.

     Duff 1-Very high certainty of timely +.

DESCRIPTION OF MOODY'S COMMERCIAL PAPER RATINGS:

     The rating Prime-1 is the highest commercial paper rating assigned by
Moody's. Issuers rated Prime-1 (or relating supporting institutions) are
considered to have a superior capacity for repayment of short-term promissory
obligations.

DESCRIPTION OF FITCH INVESTORS SERVICE'S COMMERCIAL PAPER RATINGS:

     F-1+-Exceptionally Strong Credit Quality. Issues assigned this rating are
regarded as having the strongest degree of assurance for timely payment risk.
Capacity for timely repayment of principal and interest is substantial. Adverse
changes in business economic or financial conditions may increase investment
risk albeit not very significantly.

     A-Obligations for which there is a low expectation of investment risk.
Capacity for timely repayment of principal and interest is strong, although
adverse changes in business, economic or financial conditions may lead to
increased investment risk.

     BBB-Capacity for timely repayment of principal and interest is adequate,
although adverse changes in business, economic or financial conditions are more
likely to lead to increased investment risk than for obligations in higher
categories.


                                      B-37
<PAGE>   98



     BB-Obligations for which there is a possibility of investment risk
developing. Capacity for timely repayment of principal and interest exists, but
is susceptible over time to adverse changes in business, economic or financial
conditions.

     B-Obligations for which investment risk exists. Timely repayment of
principal and interest is not sufficiently protected against adverse changes in
business, economic or financial conditions.

     CCC-Obligations for which there is a current perceived possibility of
default. Timely repayment of principal and interest is dependent on favorable
business, economic or financial conditions.

     CC-Obligations which are highly speculative or which have a high risk of
default.

     C-Obligations which are currently in default.

     Notes: "+" or "-".

DESCRIPTION OF MOODY'S COMMERCIAL PAPER RATINGS:

     The rating Prime-1 is the highest commercial paper rating assigned by
Moody's. Issuers rated Prime-1 (or related supporting institutions) are
considered to have a superior capacity for repayment of short-term promissory
obligations.

DESCRIPTION OF FITCH INVESTORS SERVICE'S COMMERCIAL PAPER RATINGS:

     F-1+-Exceptionally Strong Credit Quality. Issues assigned this rating are
regarded as having the strongest degree of assurance for timely business,
economic or financial conditions.

     A3-Obligations supported by an adequate capacity for timely repayment. Such
capacity is more susceptible to adverse changes in business, economic or
financial conditions than for obligations in higher categories.

     B-Obligations for which the capacity for timely repayment is susceptible to
adverse changes in business, economic or financial conditions.

     C-Obligations for which there is an inadequate capacity to ensure timely
repayment.

     D-Obligations which have a high risk of default or which are currently in
default.

DESCRIPTION OF THOMSON BANK WATCH SHORT-TERM RATINGS:

     TBW-1-The highest category; indicates a very high likelihood that principal
and interest will be paid on a timely basis.

     TBW-2-The second-highest category; while the degree of safety regarding
timely repayment of principal and interest is strong, the relative degree of
safety is not as high as of issues rated "TBW-1".

     TWB-3-The lowest investment-grade category; indicates that while the
obligation is more susceptible to adverse developments (both internal and
external) than those with higher ratings, the capacity to service principal and
interest in a timely fashion is considered adequate.

     TWB-4-The lowest rating category; this rating is regarded as non-investment
grade and therefore speculative.


DESCRIPTION OF THOMSON BANKWATCH LONG-TERM RATINGS:


                                      B-38
<PAGE>   99



     AAA-The highest category; indicates that the ability to repay principal and
interest on a timely basis is extremely high.

     AA-The second -highest category; indicates a very strong ability to repay
principal and interest on a timely basis, with limited incremental risk compared
to issues rated in the highs category.

     A-The third-highest category; indicates the ability to repay principal and
interest is strong. Issues rated "A" could be more vulnerable to adverse
developments (both internal and external) than obligations with higher ratings.

     BBB-The lowest investment-grade category; indicates an acceptable capacity
to repay principal and interest. Issues rated "BBB" are, however, more
vulnerable to adverse developments (both internal and external) than obligations
with higher ratings.

NON-INVESTMENT GRADE (ISSUES REGARDED AS HAVING SPECULATIVE CHARACTERISTICS IN
THE LIKELIHOOD OF TIMELY REPAYMENT OF PRINCIPAL AND INTEREST.)

     BB-While not investment grade, the "BB" rating suggests that the likelihood
of default is considerably less than for lower-rated issues. However, there are
significant uncertainties that could affect the ability to adequately service
debt obligations.

     B-Issues rated "B" show a higher degree of uncertainty and therefore
greater likelihood of default than higher-rated issues. Adverse development
could well negatively affect the payment of interest and principal on a timely
basis.

     CCC-Issues rate "CCC" clearly have a high likelihood of default, with
little capacity to address further adverse changes in financial circumstances.

     CC-"CC" is applied to issues that are subordinate to other obligations
rated "CCC" and are afforded less protection in the event of bankruptcy or
reorganization.

     D-Default

     These long-term debt ratings can also be applied to local currency debt. In
such cases the ratings defined above will be preceded by the designation "local
currency".

RATING IN THE LONG-TERM DEBT CATEGORIES MY INCLUDE A PLUS (+) OR MINUS (-)
DESIGNATION, WHICH INDICATES WHERE WITHIN THE RESPECTIVE CATEGORY THE ISSUE IS
PLACED.





                                      B-39

<PAGE>   100

                                     PART C
                                OTHER INFORMATION

ITEM 24.          Financial Statements and Exhibits

                  List all financial statements and exhibits filed as part of
                  the Registration Statement.
   
    
   
                  (a)      Financial Statements

                           Included in Part A of this Registration Statement:

                           -- Financial Highlights for the fiscal year ended
                           December 31, 1997 (Audited)

                           Included in Part B of this Registration Statement:

                           (1)   Report of Coopers & Lybrand LLP, Independent
                                 Auditors, dated February 25, 1998*

                           (2)   Statement of Assets and Liabilities dated
                                 December 31, 1997 (Audited)

                           (3)   Statement of Operations for the period ended
                                 December 31, 1997 (Audited)

                           (4)   Statement of Changes in Net Assets for the 
                                 period ended December 31, 1997 (Audited)*

                           (5)   Schedule of Portfolio Investments dated
                                 December 31, 1997 (Audited)*

                           (6)   Notes to Financial Statements dated 
                                 December 31, 1997 (Audited)*

                           (7)   Financial Highlights for the period ended
                                 December 31, 1997*

                           (8)   Report of Coopers & Lybrand LLP, Independent
                                 Accountants dated February 18, 1998*

                           (9)   Cash Management Portfolio--Statements of
                                 Assets and Liabilities for the year ended 
                                 December 31, 1997 (Audited)*

                          (10)   Cash Management Portfolio--Statement of
                                 Operations for the year ended 
                                 December 31, 1997 (Audited)

                          (11)   Cash Management Portfolio--Statement of
                                 Changes in Net Assets dated 
                                 December 31, 1997 (Audited)*

                          (12)   Cash Management Portfolio--Notes to Financial
                                 Statements dated December 31, 1997 (Audited)*

                          (13)   Cash Management Portfolio--Schedule of
                                 Investments dated December 31, 1997 (Audited)*

                          *  Incorporated by reference to the Fund's Annual
                             Report filed with the Securities and Exchange 
                             Commission on February 25, 1998.
    
                  (b)      Exhibits

                  (1)(a)       Certificate of Trust of ProFunds (the 
                               "Registrant")(1)
                  (1)(b)       First Amended Declaration of Trust of the 
                               Registrant (2)
                  (2)          By-laws of Registrant (2)
                               Not Applicable
                  (4)          Not Applicable
                  (5)(a)       Investment Advisory Agreement for each non-money 
                               market ProFund (2)
                  (5)(b)       Investment Advisory Agreement for Cash Management
                               Portfolio incorporated by reference to Bankers
                               Trust Company's Registration Statement on Form
                               N-1A ('40 Act file no. 811-06073) filed with the
                               Commission on April 24, 1996.
   
                  (5)(c)       Amendment to Investment Advisory Agreement 
                               between ProFunds and ProFunds Advisors LLC (3) 
    
                  (6)          Form of Distribution Agreement and Dealer 
                               Agreement (2) 
                  (7)          Not Applicable 
                  (8)(a)       Form of Custody Agreement with UMB Bank, N.A. (2)
   
                  (8)(b)       Amendment to Custody Agreement with UMB Bank,
                               N.A. (3) 
    
                  (9)(a)       Form of Transfer Agency Agreement (2) 
                  (9)(b)       Form of Administration Agreement (2) 
                  (9)(c)       Form of Administration and Services Agreement 
                               incorporated by reference to Bankers Trust 
                               Company's Registration Statement on Form N-1A 
                               ('40 Act file no. 811-06073) filed with the 
                               Commission on April 24, 1996.
                  (9)(d)       Form of Fund Accounting Agreement (2)
                  (9)(e)       Form of Management Services Agreement (2)
                  (9)(f)       Form of Shareholder Services Agreement related to
                               Adviser Shares (2)
                  (9)(g)       Form of Omnibus Fee Agreement with BISYS Fund 
                               Services LP (2)
   
                  (9)(h)       Amendment to Management Services Agreement with 
                               respect to the UltraShort OTC ProFund (3)
    
                  (10)         Opinion and Consent of Counsel to the 
                               Registrant (2)
   
                  (11)         Consents of Independent Auditors--filed herewith
    
                  (12)         Not Applicable
                  (13)         Purchase Agreement dated October 10, 1997 between
                               the Registrant and National Capital Group, 
                               Inc. (2)
                  (14)         Not Applicable



                                      C-1
<PAGE>   101

                  (15)         Not Applicable
   
                  (16)         Schedules of Computa of Performance 
                               Calculation--filed herewith
                  (17)         Financial Data Schedules--filed herewith
    
                  (18)(a)      Multiple Class Plan (2)
   
                  (18)(b)      Amended and Restated Multi-Class Plan (3)
    
                  (19)         Power of Attorney of Cash Management Portfolio
                               incorporated by reference to Bankers Trust
                               Company's Registration Statement on Form N-1A
                               filed with the Commission on March 19, 1997.
- ---------------------------
(1)  Filed with initial registration statement.
(2)  Previously filed on November 10, 1997 as part of Pre-Effective Amendment
     No. 4 and incorporated by reference herein.
   
(3)  Previously filed on February 24, 1998 as part of Post-Effective Amendment
     No. 1 and incorporated by reference herein.
    

ITEM 25. Persons Controlled By or Under Common Control With Registrant.

         None.

ITEM 26. Number of Holders of Securities

The following information is given as of the date indicated:

   
Number of Record Holders as of April 6, 1998:
    

   
<TABLE>
<CAPTION>
                                    Shares of beneficial                            Number of
Title of Class:                     interest, no par value                        Recordholders
<S>                                 <C>                                               <C>
Investor Shares:                    Money Market ProFund                              66
                                    Bull ProFund                                      14
                                    UltraBull ProFund                                 49
                                    Bear ProFund                                       7
                                    UltraBear ProFund                                 24
                                    UltraOTC ProFund                                  54

Service Shares:                     Money Market ProFund                              28
                                    Bull ProFund                                      13
                                    UltraBull ProFund                                 11
                                    Bear ProFund                                       7
                                    UltraBear ProFund                                  4
                                    UltraOTC ProFund                                  61
</TABLE>
    

ITEM 27. Indemnification

                  The Registrant is organized as a Delaware business trust and
                  is operated pursuant to a Declaration of Trust, dated as of
                  April 17, 1997 (the "Declaration of Trust"), that permits the
                  Registrant to indemnify its trustees and officers under
                  certain circumstances. Such indemnification, however, is
                  subject to the limitations imposed by the Securities Act of
                  1933, as amended, and the Investment Company Act of 1940, as
                  amended. The Declaration of Trust of the Registrant provides
                  that officers and trustees of the Trust shall be indemnified
                  by the Trust against liabilities and expenses of defense in
                  proceedings against them by reason of the fact that they each
                  serve as an 



                                      C-2
<PAGE>   102

                  officer or trustee of the Trust or as an officer or trustee
                  of another entity at the request of the entity. This
                  indemnification is subject to the following conditions:

                  (a)      no trustee or officer of the Trust is indemnified
                           against any liability to the Trust or its security
                           holders which was the result of any willful
                           misconduct, bad faith, gross negligence, or reckless
                           disregard of his duties;

                  (b)      officers and trustees of the Trust are indemnified
                           only for actions taken in good faith which the
                           officers and trustees believed were in or not opposed
                           to the best interests of the Trust; and

                  (c)      expenses of any suit or proceeding will paid in
                           advance only if the persons who will benefit by such
                           advance undertake to repay the expenses unless it
                           subsequently is determined that such persons are
                           entitled to indemnification.

                  The Declaration of Trust of the Registrant provides that if
                  indemnification is not ordered by a court, indemnification may
                  be authorized upon determination by shareholders, or by a
                  majority vote of a quorum of the trustees who were not parties
                  to the proceedings or, if this quorum is not obtainable, if
                  directed by a quorum of disinterested trustees, or by
                  independent legal counsel in a written opinion, that the
                  persons to be indemnified have met the applicable standard.

ITEM 28. Business and Other Connections of Investment Advisory

                  ProFunds Advisors LLC (the "Advisor"), a limited liability
                  company formed under the laws of the State of Maryland on May
                  8, 1997.

                  Information relating to the business and other connections of
                  Bankers Trust which serves as investment adviser to the Cash
                  Management Portfolio and each director, officer or partner of
                  Bankers Trust are hereby incorporated by reference to
                  disclosures in Item 28 of BT Institutional funds (accession #
                  0000862157-97-00007) is filed on March 17, 1997 with the
                  Securities and Exchange Commission.

ITEM 29. Principal Underwriter

Concord Financial Group, Inc., 3435 Stelzer Road, Columbus, Ohio 43219 acts
solely as interim distributor for the Registrant. The officers of Concord
Financial Group, Inc. are:

<TABLE>
<CAPTION>
Name and Principal                  Position and Offices                   Position and Offices
Business Address                    with CFG                               with Registrant

<S>                                 <C>                                    <C>
Lynn J. Magnum                      Chairman                               none

Dennis Shechan Sr.                  Vice President                         none
</TABLE>



                                      C-3
<PAGE>   103


Michael D. Burns                    Vice President/                        none
                                    Chief Compliance Officer

Steven Mintos                       Executive Vice                         none
                                    President/Chief Operating Officer

Dale Smith                          Vice President/                        none
                                    Chief Financial Officer

Kevin Dell                          Vice President                         none
                                    General Counsel/Secretary

ITEM 30.          Location of Accounts and Records

                  All accounts, books, and records required to be maintained and
                  preserved by Section 31(a) of the Investment Company Act of
                  1940, as amended, and Rules 31a-1 and 31a-2 thereunder, will
                  be kept by the Registrant at:

                  (1)      ProFund Advisors LLC, 7900 Wisconsin Avenue, Suite
                           300, Bethesda, Maryland (records relating to its
                           functions as investment adviser and manager to the
                           non-money market portfolios);

                  (2)      BISYS Fund Services, 3435 Stelzer Road, Columbus,
                           Ohio (records relating to the administrator, fund
                           accountant and transfer agent).

                  (3)      UMB Bank, N.A., 928 Grand Avenue, Kansas City,
                           Missouri for each ProFund (records relating to its
                           function as Custodian)

ITEM 31. Management Services

                  None.

ITEM 32. Undertakings

   
                   (a)     Registrant undertakes to call a meeting of
                           shareholders for the purpose of voting upon the
                           question of removal of a Trustee or Trustees when
                           requested to do so by the holders of at least 10% of
                           the Registrant's outstanding shares and, in
                           connection with such meeting, to comply with the
                           shareholder communications provisions of Section
                           16(c) of the Investment Company Act of 1940.

                  (b)      Registrant undertakes to furnish each person to whom
                           a prospectus is delivered with a copy of the
                           Registrant's latest Annual Report to shareholders,
                           upon request and without charge.
    




                                      C-4
<PAGE>   104
   
                                   SIGNATURES
                                    PROFUNDS

         Pursuant to the requirements of the Securities Act of 1933 and the
Investment Company Act of 1940, the Registrant certifies that it meets all the
requirements for effectiveness of this Registration Statement pursuant to Rule
485(b) under the Securities Act of 1993 and has duly caused this Post-Effective
Amendment No. 2 to its Registration Statement on Form N-1A to be signed on its
behalf by the undersigned, thereunto duly authorized, in Bethesda in the State
of Maryland on April 24, 1998.

                                             PROFUNDS


                                             /s/ Michael L. Sapir
                                             -----------------------------------
                                                 Michael L. Sapir, Chairman
                                                 and Chief Executive Officer

         Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed below by the following persons in the
capacities and on the date indicated.

<TABLE>
<CAPTION>
Signatures                                  Title                               Date

<S>                                         <C>                                 <C>
/s/      Michael L. Sapir                   Trustee, President                  April 24, 1998
- ----------------------------------------                                                 
         Michael L. Sapir


/s/      Louis Mayberg                      Trustee, Secretary                  April 24, 1998
- ----------------------------------------                                                 
         Louis Mayberg

/s/      Russell S. Reynolds                Trustee                             April 24, 1998
- ----------------------------------------                                                 
         Russell S. Reynolds


/s/      Michael Wachs                      Trustee                             April 24, 1998
- ----------------------------------------                                                 
         Michael Wachs

/s/      Nimish Bhatt                       Treasurer                           April 24, 1998
- ----------------------------------------                                                 
         Nimish Bhatt
</TABLE>
    



                                      C-5
<PAGE>   105

   
                                   SIGNATURES
                            CASH MANAGEMENT PORTFOLIO

         CASH MANAGEMENT PORTFOLIO has duly caused this Post-Effective Amendment
No. 2 to the Registration Statement on Form N-1A of ProFunds to be signed on its
behalf by the undersigned, there unto duly authorized in the City of Pittsburgh
and the Commonwealth of Pennsylvania on the 23rd day of April, 1998.

CASH MANAGEMENT PORTFOLIO


/s/      Jay S. Neuman
- ---------------------------------
         Jay S. Neuman, Secretary

         This Post-Effective Amendment No. 2 to the Registration Statement on
Form N-1A of ProFunds has been signed below by the following persons in the
capacities indicated with respect to Cash Management Portfolio on April 23,
1998.

Signatures                                           Title


/s/      Ronald M. Petnuch*                          President and Treasurer
- ----------------------------------
         Ronald M. Petnuch                           (Chief Executive Officer,
                                                     Principal Financial and
                                                     Accounting Officer)

/s/      Charles P. Biggar*                          Trustee
- ----------------------------------
         Charles P. Biggar

/s/      S. Leland Dill*                             Trustee
- ----------------------------------
         S. Leland Dill

/s/      Philip Saunders, Jr.*                       Trustee
- ----------------------------------
         Philip Saunders, Jr.


*By:  /s/Jay S. Neuman
- ----------------------------------
         Jay S. Neuman, Secretary of Cash Management Portfolio
         as Attorney-in-Fact
Date:    April 23, 1998
    



                                      C-6
<PAGE>   106

                                  EXHIBIT INDEX

Exhibit No.                    Description
- -----------                    -----------

   
11                     Consents of Coopers & Lybrand LLP
    

16                     Schedules of Computation of Performance Calculations

17                     Financial Data Schedules


<PAGE>   1
                                                                      Exhibit 11




                       CONSENT OF INDEPENDENT ACCOUNTANTS


We consent to the incorporation by reference in this Post-Effective Amendment
No. 2 to the Registration Statement of ProFunds on Form N-1A 
(File No. 333-28339) of our report dated February 25, 1998 on our audits of 
the financial statements and financial highlights of ProFunds (comprising,
respectively, the Bull ProFund, UltraBull ProFund, Bear ProFund, UltraBear
ProFund, UltraOTC ProFund, and Money Market ProFund), which report is included
in the Annual Report to Shareholder for the period ended December 31, 1997 which
is incorporated by reference in the Post-Effective Amendment No. 2 to the
Registration Statement. We also consent to the reference to our Firm under the
captions "Financial Highlights", "Auditors" and "Independent Auditors" in the
Prospectus and "Independent Accountants" and "Financial Statements" in the
Statement of Additional Information in this Post-Effective Amendment No. 2 to
the Registration Statement of ProFunds on Form N-1A (File No. 333-28339).





                                                        COOPERS & LYBRAND L.L.P.




   
Columbus, Ohio
April 24, 1998
    
<PAGE>   2



                       CONSENT OF INDEPENDENT ACCOUNTANTS


We consent to the incorporation by reference in Post-Effective Amendment No. 2
to the Registration Statement of the Money Market ProFund (one of the Funds
comprising The ProFunds) on Form N-1A (File No. 333-28339) of our report dated
February 18, 1998 on our audits of the financial statements and financial
highlights of the Cash Management Portfolio, which report is included in the
Annual Report to Shareholders for the year ended December 31, 1997 which is
incorporated by reference in the Post-Effective Amendment No. 2 to the
Registration Statement.



                                                        COOPERS & LYBRAND L.L.P.




   
Kansas City, Missouri
April 24, 1998
    

<PAGE>   1
                                  THE PROFUNDS
                                   EXHIBIT 16
                                  TOTAL RETURN

                          BULL PROFUND SERVICE SHARES


AGGREGATE TOTAL RETURN
WITH SALES CHARGE OF:    0.00%
- ------------------------------

T = (ERV/P) - 1

WHERE:         T =       TOTAL RETURN

               ERV =     ENDING REDEEMABLE VALUE AT THE END
                         OF THE PERIOD OF A HYPOTHETICAL
                         $1,000 INVESTMENT MADE AT THE
                         BEGINNING OF THE PERIOD.

               P =       A HYPOTHETICAL INITIAL PAYMENT OF $1,000.


EXAMPLE:

 YEAR TO DATE:      ( 12/02/97 TO 12/31/97 ):
                       989.00 /1,000) - 1 =       -1.10%
 MONTHLY:           ( 12/02/97 TO 12/31/97 ):
                       989.00 /1,000) - 1 =       -1.10%
 SINCE INCEPTION:   ( 12/02/97 TO 12/31/97 ):
                       989.00 /1,000) - 1 =       -1.10%


<PAGE>   2
                                  THE PROFUNDS
                                   EXHIBIT 16
                                  TOTAL RETURN

                        ULTRABULL PROFUND SERVICE CLASS


AGGREGATE TOTAL RETURN
WITH SALES CHARGE OF:    0.00%
- ------------------------------

T = (ERV/P) - 1

WHERE:         T =       TOTAL RETURN

               ERV =     ENDING REDEEMABLE VALUE AT THE END
                         OF THE PERIOD OF A HYPOTHETICAL
                         $1,000 INVESTMENT MADE AT THE
                         BEGINNING OF THE PERIOD.

               P =       A HYPOTHETICAL INITIAL PAYMENT OF $1,000.


EXAMPLE:

 YEAR TO DATE:      ( 11/28/97 TO 12/31/97 ):
                      1,029.00 /1,000) - 1 =        2.90%
 MONTHLY:           ( 12/01/97 TO 12/31/97 ):
                      1.026.90 /1,000) - 1 =        2.69%
 SINCE INCEPTION:   ( 11/28/97 TO 12/31/97 ):
                      1,029.00 /1,000) - 1 =        2.90%


<PAGE>   3
                                  THE PROFUNDS
                                   EXHIBIT 16
                                  TOTAL RETURN

                          BEAR PROFUND SERVICE SHARES


AGGREGATE TOTAL RETURN
WITH SALES CHARGE OF:    0.00%
- ------------------------------

T = (ERV/P) - 1

WHERE:         T =       TOTAL RETURN

               ERV =     ENDING REDEEMABLE VALUE AT THE END
                         OF THE PERIOD OF A HYPOTHETICAL
                         $1,000 INVESTMENT MADE AT THE
                         BEGINNING OF THE PERIOD.

               P =       A HYPOTHETICAL INITIAL PAYMENT OF $1,000.


EXAMPLE:

 YEAR TO DATE:      ( 12/31/97 TO 12/31/97 ):
                      1,000.00 /1,000) - 1 =        0.00%
 MONTHLY:           ( 12/31/97 TO 12/31/97 ):
                      1,000.00 /1,000) - 1 =        0.00%
 SINCE INCEPTION:   ( 12/31/97 TO 12/31/97 ):
                      1,000.00 /1,000) - 1 =        0.00%


<PAGE>   4
                                  THE PROFUNDS
                                   EXHIBIT 16
                                  TOTAL RETURN

                        ULTRABEAR PROFUND SERVICE SHARES


AGGREGATE TOTAL RETURN
WITH SALES CHARGE OF:    0.00%
- ------------------------------

T = (ERV/P) - 1

WHERE:         T =       TOTAL RETURN

               ERV =     ENDING REDEEMABLE VALUE AT THE END
                         OF THE PERIOD OF A HYPOTHETICAL
                         $1,000 INVESTMENT MADE AT THE
                         BEGINNING OF THE PERIOD.

               P =       A HYPOTHETICAL INITIAL PAYMENT OF $1,000.


EXAMPLE:

 YEAR TO DATE:      ( 12/23/97 TO 12/31/97 ):
                      1,035.00 /1,000) - 1 =        3.50%
 MONTHLY:           ( 12/23/97 TO 12/31/97 ):
                      1,035.00 /1,000) - 1 =        3.50%
 SINCE INCEPTION:   ( 12/23/97 TO 12/31/97 ):
                      1,035.00 /1,000) - 1 =        3.50%


<PAGE>   5
                                  THE PROFUNDS
                                   EXHIBIT 16
                                  TOTAL RETURN

                        ULTRAOTC PROFUND SERVICE SHARES


AGGREGATE TOTAL RETURN
WITH SALES CHARGE OF:    0.00%
- ------------------------------

T = (ERV/P) - 1

WHERE:         T =       TOTAL RETURN

               ERV =     ENDING REDEEMABLE VALUE AT THE END
                         OF THE PERIOD OF A HYPOTHETICAL
                         $1,000 INVESTMENT MADE AT THE
                         BEGINNING OF THE PERIOD.

               P =       A HYPOTHETICAL INITIAL PAYMENT OF $1,000.


EXAMPLE:

 YEAR TO DATE:      ( 12/02/97 TO 12/31/97 ):
                       836.00 /1,000) - 1 =       -16.40%
 MONTHLY:           ( 12/02/97 TO 12/31/97 ):
                       836.00 /1,000) - 1 =       -16.40%
 SINCE INCEPTION:   ( 12/02/97 TO 12/31/97 ):
                       836.00 /1,000) - 1 =       -16.40%


<PAGE>   6
                                  THE PROFUNDS
                                   EXHIBIT 16
                                  TOTAL RETURN

                      MONEY MARKET PROFUND SERVICE SHARES


AGGREGATE TOTAL RETURN
WITH SALES CHARGE OF:    0.00%
- ------------------------------

T = (ERV/P) - 1

WHERE:         T =       TOTAL RETURN

               ERV =     ENDING REDEEMABLE VALUE AT THE END
                         OF THE PERIOD OF A HYPOTHETICAL
                         $1,000 INVESTMENT MADE AT THE
                         BEGINNING OF THE PERIOD.

               P =       A HYPOTHETICAL INITIAL PAYMENT OF $1,000.


EXAMPLE:

 YEAR TO DATE:      ( 11/17/97 TO 12/31/97 ):
                      1,002.10 /1,000) - 1 =        0.21%
 MONTHLY:           ( 12/01/97 TO 12/31/97 ):
                      1,000.20 /1,000) - 1 =        0.02%
 SINCE INCEPTION:   ( 11/17/97 TO 12/31/97 ):
                      1,002.10 /1,000) - 1 =        0.21%


<PAGE>   7
                                  THE PROFUNDS
                                   EXHIBIT 16
                                  TOTAL RETURN

                          BULL PROFUND INVESTOR SHARES


AGGREGATE TOTAL RETURN
WITH SALES CHARGE OF:    0.00%
- ------------------------------

T = (ERV/P) - 1

WHERE:         T =       TOTAL RETURN

               ERV =     ENDING REDEEMABLE VALUE AT THE END
                         OF THE PERIOD OF A HYPOTHETICAL
                         $1,000 INVESTMENT MADE AT THE
                         BEGINNING OF THE PERIOD.

               P =       A HYPOTHETICAL INITIAL PAYMENT OF $1,000.


EXAMPLE:

 YEAR TO DATE:      ( 12/02/97 TO 12/31/97 ):
                       989.00 /1,000) - 1 =       -1.10%
 MONTHLY:           ( 12/02/97 TO 12/31/97 ):
                       989.00 /1,000) - 1 =       -1.10%
 SINCE INCEPTION:   ( 12/02/97 TO 12/31/97 ):
                       989.00 /1,000) - 1 =       -1.10%


<PAGE>   8
                                  THE PROFUNDS
                                   EXHIBIT 16
                                  TOTAL RETURN

                       ULTRABULL PROFUND INVESTOR SHARES


AGGREGATE TOTAL RETURN
WITH SALES CHARGE OF:    0.00%
- ------------------------------

T = (ERV/P) - 1

WHERE:         T =       TOTAL RETURN

               ERV =     ENDING REDEEMABLE VALUE AT THE END
                         OF THE PERIOD OF A HYPOTHETICAL
                         $1,000 INVESTMENT MADE AT THE
                         BEGINNING OF THE PERIOD.

               P =       A HYPOTHETICAL INITIAL PAYMENT OF $1,000.


EXAMPLE:

 YEAR TO DATE:      ( 11/28/97 TO 12/31/97 ):
                      1,029.00 /1,000) - 1 =        2.90%
 MONTHLY:           ( 12/01/97 TO 12/31/97 ):
                      1,026.90 /1,000) - 1 =        2.69%
 SINCE INCEPTION:   ( 11/28/97 TO 12/31/97 ):
                      1,029.00 /1,000) - 1 =        2.90%


<PAGE>   9
                                  THE PROFUNDS
                                   EXHIBIT 16
                                  TOTAL RETURN

                          BEAR PROFUND INVESTOR SHARES


AGGREGATE TOTAL RETURN
WITH SALES CHARGE OF:    0.00%
- ------------------------------

T = (ERV/P) - 1

WHERE:         T =       TOTAL RETURN

               ERV =     ENDING REDEEMABLE VALUE AT THE END
                         OF THE PERIOD OF A HYPOTHETICAL
                         $1,000 INVESTMENT MADE AT THE
                         BEGINNING OF THE PERIOD.

               P =       A HYPOTHETICAL INITIAL PAYMENT OF $1,000.


EXAMPLE:

 YEAR TO DATE:      ( 12/31/97 TO 12/31/97 ):
                      1,000.00 /1,000) - 1 =        0.00%
 MONTHLY:           ( 12/31/97 TO 12/31/97 ):
                      1,000.00 /1,000) - 1 =        0.00%
 SINCE INCEPTION:   ( 12/31/97 TO 12/31/97 ):
                      1,000.00 /1,000) - 1 =        0.00%


<PAGE>   10
                                  THE PROFUNDS
                                   EXHIBIT 16
                                  TOTAL RETURN

                       ULTRABEAR PROFUND INVESTOR SHARES


AGGREGATE TOTAL RETURN
WITH SALES CHARGE OF:    0.00%
- ------------------------------

T = (ERV/P) - 1

WHERE:         T =       TOTAL RETURN

               ERV =     ENDING REDEEMABLE VALUE AT THE END
                         OF THE PERIOD OF A HYPOTHETICAL
                         $1,000 INVESTMENT MADE AT THE
                         BEGINNING OF THE PERIOD.

               P =       A HYPOTHETICAL INITIAL PAYMENT OF $1,000.


EXAMPLE:

 YEAR TO DATE:      ( 12/23/97 TO 12/31/97 ):
                      1,036.00 /1,000) - 1 =        3.60%
 MONTHLY:           ( 12/23/97 TO 12/31/97 ):
                      1,036.00 /1,000) - 1 =        3.60%
 SINCE INCEPTION:   ( 12/23/97 TO 12/31/97 ):
                      1,036.00 /1,000) - 1 =        3.60%


<PAGE>   11
                                  THE PROFUNDS
                                   EXHIBIT 16
                                  TOTAL RETURN

                        ULTRAOTC PROFUND INVESTOR SHARES


AGGREGATE TOTAL RETURN
WITH SALES CHARGE OF:    0.00%
- ------------------------------

T = (ERV/P) - 1

WHERE:         T =       TOTAL RETURN

               ERV =     ENDING REDEEMABLE VALUE AT THE END
                         OF THE PERIOD OF A HYPOTHETICAL
                         $1,000 INVESTMENT MADE AT THE
                         BEGINNING OF THE PERIOD.

               P =       A HYPOTHETICAL INITIAL PAYMENT OF $1,000.


EXAMPLE:

 YEAR TO DATE:      ( 12/02/97 TO 12/31/97 ):
                       836.00 /1,000) - 1 =       -16.40%
 MONTHLY:           ( 12/02/97 TO 12/31/97 ):
                       836.00 /1,000) - 1 =       -16.40%
 SINCE INCEPTION:   ( 12/02/97 TO 12/31/97 ):
                       836.00 /1,000) - 1 =       -16.40%


<PAGE>   12
                                  THE PROFUNDS
                                   EXHIBIT 16
                                  TOTAL RETURN

                      MONEY MARKET PROFUND INVESTOR SHARES


AGGREGATE TOTAL RETURN
WITH SALES CHARGE OF:    0.00%
- ------------------------------

T = (ERV/P) - 1

WHERE:         T =       TOTAL RETURN

               ERV =     ENDING REDEEMABLE VALUE AT THE END
                         OF THE PERIOD OF A HYPOTHETICAL
                         $1,000 INVESTMENT MADE AT THE
                         BEGINNING OF THE PERIOD.

               P =       A HYPOTHETICAL INITIAL PAYMENT OF $1,000.


EXAMPLE:

 YEAR TO DATE:      ( 11/17/97 TO 12/31/97 ):
                      1,006.10 /1,000) - 1 =        0.61%
 MONTHLY:           ( 12/01/97 TO 12/31/97 ):
                      1,004.20 /1,000) - 1 =        0.42%
 SINCE INCEPTION:   ( 11/17/97 TO 12/31/97 ):
                      1,006.10 /1,000) - 1 =        0.61%



<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001039803
<NAME> PROFUNDS
<SERIES>
   <NUMBER> 011
   <NAME> BULL PROFUND
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             DEC-02-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                                0
<INVESTMENTS-AT-VALUE>                               0
<RECEIVABLES>                                   55,764
<ASSETS-OTHER>                                  31,139
<OTHER-ITEMS-ASSETS>                             2,513
<TOTAL-ASSETS>                                  89,416
<PAYABLE-FOR-SECURITIES>                            10
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       43,115
<TOTAL-LIABILITIES>                             43,125
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        46,797
<SHARES-COMMON-STOCK>                            4,679<F1>
<SHARES-COMMON-PRIOR>                                0<F1>
<ACCUMULATED-NII-CURRENT>                           85
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                           846
<ACCUM-APPREC-OR-DEPREC>                           255
<NET-ASSETS>                                    46,291
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                  167
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                      52
<NET-INVESTMENT-INCOME>                            115
<REALIZED-GAINS-CURRENT>                         (846)
<APPREC-INCREASE-CURRENT>                          225
<NET-CHANGE-FROM-OPS>                            (476)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0<F1>
<DISTRIBUTIONS-OF-GAINS>                             0<F1>
<DISTRIBUTIONS-OTHER>                                0<F1>
<NUMBER-OF-SHARES-SOLD>                          9,966<F1>
<NUMBER-OF-SHARES-REDEEMED>                      5,287<F1>
<SHARES-REINVESTED>                                  0<F1>
<NET-CHANGE-IN-ASSETS>                          46,291
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               28
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 16,439
<AVERAGE-NET-ASSETS>                            47,219<F1>
<PER-SHARE-NAV-BEGIN>                            10.00<F1>
<PER-SHARE-NII>                                    .02<F1>
<PER-SHARE-GAIN-APPREC>                         (0.13)<F1>
<PER-SHARE-DIVIDEND>                                 0<F1>
<PER-SHARE-DISTRIBUTIONS>                            0<F1>
<RETURNS-OF-CAPITAL>                                 0<F1>
<PER-SHARE-NAV-END>                               9.89<F1>
<EXPENSE-RATIO>                                   1.33<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>INVESTOR CLASS
</FN>
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001039803
<NAME> PROFUNDS
<SERIES>
   <NUMBER> 012
   <NAME> BULL PROFUND
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             DEC-02-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                                0
<INVESTMENTS-AT-VALUE>                               0
<RECEIVABLES>                                   55,764
<ASSETS-OTHER>                                  31,139
<OTHER-ITEMS-ASSETS>                             2,513
<TOTAL-ASSETS>                                  89,416
<PAYABLE-FOR-SECURITIES>                            10
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       43,115
<TOTAL-LIABILITIES>                             43,125
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        46,797
<SHARES-COMMON-STOCK>                                1<F2>
<SHARES-COMMON-PRIOR>                                0<F2>
<ACCUMULATED-NII-CURRENT>                           85
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                           846
<ACCUM-APPREC-OR-DEPREC>                           255
<NET-ASSETS>                                    46,291
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                  167
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                      52
<NET-INVESTMENT-INCOME>                            115
<REALIZED-GAINS-CURRENT>                         (846)
<APPREC-INCREASE-CURRENT>                          225
<NET-CHANGE-FROM-OPS>                            (476)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0<F2>
<DISTRIBUTIONS-OF-GAINS>                             0<F2>
<DISTRIBUTIONS-OTHER>                                0<F2>
<NUMBER-OF-SHARES-SOLD>                              1<F2>
<NUMBER-OF-SHARES-REDEEMED>                          1<F2>
<SHARES-REINVESTED>                                  0<F2>
<NET-CHANGE-IN-ASSETS>                          46,291
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               28
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 16,439
<AVERAGE-NET-ASSETS>                                10<F2>
<PER-SHARE-NAV-BEGIN>                            10.00<F2>
<PER-SHARE-NII>                                      0<F2>
<PER-SHARE-GAIN-APPREC>                         (0.11)<F2>
<PER-SHARE-DIVIDEND>                                 0<F2>
<PER-SHARE-DISTRIBUTIONS>                            0<F2>
<RETURNS-OF-CAPITAL>                                 0<F2>
<PER-SHARE-NAV-END>                               9.89<F2>
<EXPENSE-RATIO>                                   1.33<F2>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F2>SERVICE CLASS 
</FN>
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001039803
<NAME> PROFUNDS
<SERIES>
   <NUMBER> 021
   <NAME> ULTRABULL PROFUND
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             NOV-28-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                        3,541,500
<INVESTMENTS-AT-VALUE>                       3,588,750
<RECEIVABLES>                                4,854,489
<ASSETS-OTHER>                                  49,819
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                               8,493,058
<PAYABLE-FOR-SECURITIES>                           985
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       54,036
<TOTAL-LIABILITIES>                             55,021
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     8,415,279
<SHARES-COMMON-STOCK>                          587,296<F1>
<SHARES-COMMON-PRIOR>                                0<F1>
<ACCUMULATED-NII-CURRENT>                        1,899
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                        25,731
<ACCUM-APPREC-OR-DEPREC>                        46,590
<NET-ASSETS>                                 8,438,037
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                8,090
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   3,163
<NET-INVESTMENT-INCOME>                          4,927
<REALIZED-GAINS-CURRENT>                         7,528
<APPREC-INCREASE-CURRENT>                       46,590
<NET-CHANGE-FROM-OPS>                           59,045
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0<F1>
<DISTRIBUTIONS-OF-GAINS>                             0<F1>
<DISTRIBUTIONS-OTHER>                                0<F1>
<NUMBER-OF-SHARES-SOLD>                      1,421,658<F1>
<NUMBER-OF-SHARES-REDEEMED>                    834,362<F1>
<SHARES-REINVESTED>                                  0<F1>
<NET-CHANGE-IN-ASSETS>                       8,438,037
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            1,609
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 30,944
<AVERAGE-NET-ASSETS>                         1,720,413<F1>
<PER-SHARE-NAV-BEGIN>                            10.00<F1>
<PER-SHARE-NII>                                    .01<F1>
<PER-SHARE-GAIN-APPREC>                           0.28<F1>
<PER-SHARE-DIVIDEND>                                 0<F1>
<PER-SHARE-DISTRIBUTIONS>                            0<F1>
<RETURNS-OF-CAPITAL>                                 0<F1>
<PER-SHARE-NAV-END>                              10.29<F1>
<EXPENSE-RATIO>                                   1.33<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>INVESTOR CLASS
</FN>
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001039803
<NAME> PROFUNDS
<SERIES>
   <NUMBER> 022
   <NAME> ULTRABULL PROFUND
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             NOV-28-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                        3,541,500
<INVESTMENTS-AT-VALUE>                       3,588,750
<RECEIVABLES>                                4,854,489
<ASSETS-OTHER>                                  49,819
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                               8,493,058
<PAYABLE-FOR-SECURITIES>                           905
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       54,036
<TOTAL-LIABILITIES>                             55,021
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     8,415,279
<SHARES-COMMON-STOCK>                          232,603<F2>
<SHARES-COMMON-PRIOR>                                0<F2>
<ACCUMULATED-NII-CURRENT>                        1,899
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                        25,731
<ACCUM-APPREC-OR-DEPREC>                        46,590
<NET-ASSETS>                                 8,438,037
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                8,090
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   3,163
<NET-INVESTMENT-INCOME>                          4,927
<REALIZED-GAINS-CURRENT>                         7,528
<APPREC-INCREASE-CURRENT>                       46,590
<NET-CHANGE-FROM-OPS>                           59,045
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0<F2>
<DISTRIBUTIONS-OF-GAINS>                             0<F2>
<DISTRIBUTIONS-OTHER>                                0<F2>
<NUMBER-OF-SHARES-SOLD>                        202,999<F2>
<NUMBER-OF-SHARES-REDEEMED>                     50,396<F2>
<SHARES-REINVESTED>                                  0<F2>
<NET-CHANGE-IN-ASSETS>                       8,438,037
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            1,609
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 30,944
<AVERAGE-NET-ASSETS>                           830,623<F2>
<PER-SHARE-NAV-BEGIN>                            10.00<F2>
<PER-SHARE-NII>                                    .01<F2>
<PER-SHARE-GAIN-APPREC>                           0.28<F2>
<PER-SHARE-DIVIDEND>                                 0<F2>
<PER-SHARE-DISTRIBUTIONS>                            0<F2>
<RETURNS-OF-CAPITAL>                                 0<F2>
<PER-SHARE-NAV-END>                              10.29<F2>
<EXPENSE-RATIO>                                   1.33<F2>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F2>SERVICE CLASS  
</FN>
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001039803
<NAME> PROFUNDS
<SERIES>
   <NUMBER> 031
   <NAME> BEAR PROFUND     
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                                0
<INVESTMENTS-AT-VALUE>                               0
<RECEIVABLES>                                2,512,976
<ASSETS-OTHER>                                  51,875
<OTHER-ITEMS-ASSETS>                           115,575
<TOTAL-ASSETS>                               2,680,426
<PAYABLE-FOR-SECURITIES>                       112,590
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       51,414
<TOTAL-LIABILITIES>                            164,004
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     2,515,852
<SHARES-COMMON-STOCK>                          251,584<F1>
<SHARES-COMMON-PRIOR>                                0<F1>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            137
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                           433
<NET-ASSETS>                                 2,516,422
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                       0
<NET-INVESTMENT-INCOME>                              0
<REALIZED-GAINS-CURRENT>                           137
<APPREC-INCREASE-CURRENT>                          433
<NET-CHANGE-FROM-OPS>                              570
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0<F1>
<DISTRIBUTIONS-OF-GAINS>                             0<F1>
<DISTRIBUTIONS-OTHER>                                0<F1>
<NUMBER-OF-SHARES-SOLD>                        251,584<F1>
<NUMBER-OF-SHARES-REDEEMED>                          0<F1>
<SHARES-REINVESTED>                                  0<F1>
<NET-CHANGE-IN-ASSETS>                       2,516,422
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                                0
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 26,297
<AVERAGE-NET-ASSETS>                         2,516,412<F1>
<PER-SHARE-NAV-BEGIN>                            10.00<F1>
<PER-SHARE-NII>                                      0<F1>
<PER-SHARE-GAIN-APPREC>                              0<F1>
<PER-SHARE-DIVIDEND>                                 0<F1>
<PER-SHARE-DISTRIBUTIONS>                            0<F1>
<RETURNS-OF-CAPITAL>                                 0<F1>
<PER-SHARE-NAV-END>                              10.00<F1>
<EXPENSE-RATIO>                                      0<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>INVESTOR CLASS
</FN>
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001039803
<NAME> PROFUNDS
<SERIES>
   <NUMBER> 032
   <NAME> BEAR PROFUND     
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                                0
<INVESTMENTS-AT-VALUE>                               0
<RECEIVABLES>                                2,512,976
<ASSETS-OTHER>                                  51,875
<OTHER-ITEMS-ASSETS>                           115,575
<TOTAL-ASSETS>                               2,680,426
<PAYABLE-FOR-SECURITIES>                       112,590
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       51,414
<TOTAL-LIABILITIES>                            164,004
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     2,515,852
<SHARES-COMMON-STOCK>                                1<F2>
<SHARES-COMMON-PRIOR>                                0<F2>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            137
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                           433
<NET-ASSETS>                                 2,516,422
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                       0
<NET-INVESTMENT-INCOME>                              0
<REALIZED-GAINS-CURRENT>                           137
<APPREC-INCREASE-CURRENT>                          433
<NET-CHANGE-FROM-OPS>                              570
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0<F2>
<DISTRIBUTIONS-OF-GAINS>                             0<F2>
<DISTRIBUTIONS-OTHER>                                0<F2>
<NUMBER-OF-SHARES-SOLD>                              1<F2>
<NUMBER-OF-SHARES-REDEEMED>                          0<F2>
<SHARES-REINVESTED>                                  0<F2>
<NET-CHANGE-IN-ASSETS>                       2,516,422
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                                0
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 26,297
<AVERAGE-NET-ASSETS>                                10<F2>
<PER-SHARE-NAV-BEGIN>                            10.00<F2>
<PER-SHARE-NII>                                      0<F2>
<PER-SHARE-GAIN-APPREC>                              0<F2>
<PER-SHARE-DIVIDEND>                                 0<F2>
<PER-SHARE-DISTRIBUTIONS>                            0<F2>
<RETURNS-OF-CAPITAL>                                 0<F2>
<PER-SHARE-NAV-END>                              10.00<F2>
<EXPENSE-RATIO>                                      0<F2>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F2>SERVICE CLASS 
</FN>
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001039803
<NAME> PROFUNDS
<SERIES>
   <NUMBER> 041
   <NAME> ULTRABEAR PROFUND
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             DEC-23-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                                0
<INVESTMENTS-AT-VALUE>                               0
<RECEIVABLES>                                   23,969
<ASSETS-OTHER>                                  29,125
<OTHER-ITEMS-ASSETS>                             5,025
<TOTAL-ASSETS>                                  58,119
<PAYABLE-FOR-SECURITIES>                         2,710
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       55,378
<TOTAL-LIABILITIES>                             58,088
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                            31
<SHARES-COMMON-STOCK>                                2<F1>
<SHARES-COMMON-PRIOR>                                0<F1>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                             0
<NET-ASSETS>                                        31
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                3,525
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   1,092
<NET-INVESTMENT-INCOME>                          2,433
<REALIZED-GAINS-CURRENT>                       167,320
<APPREC-INCREASE-CURRENT>                            0
<NET-CHANGE-FROM-OPS>                          169,753
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0<F1>
<DISTRIBUTIONS-OF-GAINS>                             0<F1>
<DISTRIBUTIONS-OTHER>                                0<F1>
<NUMBER-OF-SHARES-SOLD>                        480,602<F1>
<NUMBER-OF-SHARES-REDEEMED>                    480,600<F1>
<SHARES-REINVESTED>                                  0<F1>
<NET-CHANGE-IN-ASSETS>                              31
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              615
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 26,571
<AVERAGE-NET-ASSETS>                         3,326,683<F1>
<PER-SHARE-NAV-BEGIN>                            10.00<F1>
<PER-SHARE-NII>                                1216.50<F1>
<PER-SHARE-GAIN-APPREC>                      (1216.14)<F1>
<PER-SHARE-DIVIDEND>                                 0<F1>
<PER-SHARE-DISTRIBUTIONS>                            0<F1>
<RETURNS-OF-CAPITAL>                                 0<F1>
<PER-SHARE-NAV-END>                              10.36<F1>
<EXPENSE-RATIO>                                   1.33<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>INVESTOR CLASS
</FN>
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001039803
<NAME> PROFUNDS
<SERIES>
   <NUMBER> 042
   <NAME> ULTRABEAR PROFUND
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             DEC-23-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                                0
<INVESTMENTS-AT-VALUE>                               0
<RECEIVABLES>                                   23,969
<ASSETS-OTHER>                                  29,125
<OTHER-ITEMS-ASSETS>                             5,025
<TOTAL-ASSETS>                                  58,119
<PAYABLE-FOR-SECURITIES>                         2,710
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       55,378
<TOTAL-LIABILITIES>                             58,088
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                            31
<SHARES-COMMON-STOCK>                                1<F2>
<SHARES-COMMON-PRIOR>                                0<F2>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                             0
<NET-ASSETS>                                        31
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                3,525
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   1,092
<NET-INVESTMENT-INCOME>                          2,433
<REALIZED-GAINS-CURRENT>                       167,320
<APPREC-INCREASE-CURRENT>                            0
<NET-CHANGE-FROM-OPS>                          169,753
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0<F2>
<DISTRIBUTIONS-OF-GAINS>                             0<F2>
<DISTRIBUTIONS-OTHER>                                0<F2>
<NUMBER-OF-SHARES-SOLD>                              1<F2>
<NUMBER-OF-SHARES-REDEEMED>                          0<F2>
<SHARES-REINVESTED>                                  0<F2>
<NET-CHANGE-IN-ASSETS>                              31
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              615
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 26,571
<AVERAGE-NET-ASSETS>                                10<F2>
<PER-SHARE-NAV-BEGIN>                            10.00<F2>
<PER-SHARE-NII>                                   0.35<F2>
<PER-SHARE-GAIN-APPREC>                              0<F2>
<PER-SHARE-DIVIDEND>                                 0<F2>
<PER-SHARE-DISTRIBUTIONS>                            0<F2>
<RETURNS-OF-CAPITAL>                                 0<F2>
<PER-SHARE-NAV-END>                              10.35<F2>
<EXPENSE-RATIO>                                   1.33<F2>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F2>SERVICE CLASS  
</FN>
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001039803
<NAME> PROFUNDS
<SERIES>
   <NUMBER> 051
   <NAME> ULTRAOTC PROFUND 
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             DEC-02-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                          246,470
<INVESTMENTS-AT-VALUE>                         229,110
<RECEIVABLES>                                  366,187
<ASSETS-OTHER>                                 618,609
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                               1,213,906
<PAYABLE-FOR-SECURITIES>                       246,545
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       47,193
<TOTAL-LIABILITIES>                             47,193
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       293,738
<SHARES-COMMON-STOCK>                                1<F1>
<SHARES-COMMON-PRIOR>                                0<F1>
<ACCUMULATED-NII-CURRENT>                          654
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                       867,046
<ACCUM-APPREC-OR-DEPREC>                      (19,760)
<NET-ASSETS>                                   920,168
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                2,973
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   1,321
<NET-INVESTMENT-INCOME>                          1,652
<REALIZED-GAINS-CURRENT>                     (867,046)
<APPREC-INCREASE-CURRENT>                     (19,760)
<NET-CHANGE-FROM-OPS>                        (885,154)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0<F1>
<DISTRIBUTIONS-OF-GAINS>                             0<F1>
<DISTRIBUTIONS-OTHER>                                0<F1>
<NUMBER-OF-SHARES-SOLD>                        923,810<F1>
<NUMBER-OF-SHARES-REDEEMED>                    893,159<F1>
<SHARES-REINVESTED>                                  0<F1>
<NET-CHANGE-IN-ASSETS>                         920,168
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              751
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 22,211
<AVERAGE-NET-ASSETS>                           772,082<F2>
<PER-SHARE-NAV-BEGIN>                            10.00<F2>
<PER-SHARE-NII>                                    .06<F2>
<PER-SHARE-GAIN-APPREC>                         (1.70)<F2>
<PER-SHARE-DIVIDEND>                                 0<F2>
<PER-SHARE-DISTRIBUTIONS>                            0<F2>
<RETURNS-OF-CAPITAL>                                 0<F2>
<PER-SHARE-NAV-END>                               8.36<F2>
<EXPENSE-RATIO>                                   1.07<F2>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>INVESTOR CLASS
</FN>
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001039803
<NAME> PROFUNDS
<SERIES>
   <NUMBER> 052
   <NAME> ULTRAOTC PROFUND 
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             DEC-02-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                          246,470
<INVESTMENTS-AT-VALUE>                         229,110
<RECEIVABLES>                                  366,187
<ASSETS-OTHER>                                 618,609
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                               1,213,906
<PAYABLE-FOR-SECURITIES>                       246,545
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       47,193
<TOTAL-LIABILITIES>                             47,193
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       293,738
<SHARES-COMMON-STOCK>                           79,428<F2>
<SHARES-COMMON-PRIOR>                                0<F2>
<ACCUMULATED-NII-CURRENT>                          654
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                       867,046
<ACCUM-APPREC-OR-DEPREC>                      (19,760)
<NET-ASSETS>                                   920,168
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                2,973
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   1,321
<NET-INVESTMENT-INCOME>                          1,652
<REALIZED-GAINS-CURRENT>                     (867,046)
<APPREC-INCREASE-CURRENT>                     (19,760)
<NET-CHANGE-FROM-OPS>                        (885,154)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0<F2>
<DISTRIBUTIONS-OF-GAINS>                             0<F2>
<DISTRIBUTIONS-OTHER>                                0<F2>
<NUMBER-OF-SHARES-SOLD>                         85,747<F2>
<NUMBER-OF-SHARES-REDEEMED>                      6,319<F2>
<SHARES-REINVESTED>                                  0<F2>
<NET-CHANGE-IN-ASSETS>                         920,168
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              751
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 22,211
<AVERAGE-NET-ASSETS>                           476,742<F2>
<PER-SHARE-NAV-BEGIN>                            10.00<F2>
<PER-SHARE-NII>                                      0<F2>
<PER-SHARE-GAIN-APPREC>                         (1.64)<F2>
<PER-SHARE-DIVIDEND>                                 0<F2>
<PER-SHARE-DISTRIBUTIONS>                            0<F2>
<RETURNS-OF-CAPITAL>                                 0<F2>
<PER-SHARE-NAV-END>                               8.36<F2>
<EXPENSE-RATIO>                                   1.75<F2>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F2>SERVICE CLASS 
</FN>
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001039803
<NAME> PROFUNDS
<SERIES>
   <NUMBER> 061
   <NAME> MONEY MARKET PROFUND
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             NOV-17-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                                0
<INVESTMENTS-AT-VALUE>                         291,594
<RECEIVABLES>                                   19,938
<ASSETS-OTHER>                                  28,689
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 340,221
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       50,749
<TOTAL-LIABILITIES>                             50,749
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       289,475
<SHARES-COMMON-STOCK>                          286,964<F1>
<SHARES-COMMON-PRIOR>                                0<F1>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                             3
<ACCUM-APPREC-OR-DEPREC>                             0
<NET-ASSETS>                                   289,472
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                  15,685
<EXPENSES-NET>                                   1,829
<NET-INVESTMENT-INCOME>                         13,856
<REALIZED-GAINS-CURRENT>                           (3)
<APPREC-INCREASE-CURRENT>                            0
<NET-CHANGE-FROM-OPS>                           13,853
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                       13,856<F1>
<DISTRIBUTIONS-OF-GAINS>                             0<F1>
<DISTRIBUTIONS-OTHER>                                0<F1>
<NUMBER-OF-SHARES-SOLD>                      5,452,268<F1>
<NUMBER-OF-SHARES-REDEEMED>                  5,171,075<F1>
<SHARES-REINVESTED>                              5,771<F1>
<NET-CHANGE-IN-ASSETS>                         289,472
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                                0
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 26,297
<AVERAGE-NET-ASSETS>                         2,282,381<F1>
<PER-SHARE-NAV-BEGIN>                             1.00<F1>
<PER-SHARE-NII>                                   .006<F1>
<PER-SHARE-GAIN-APPREC>                              0<F1>
<PER-SHARE-DIVIDEND>                              .006<F1>
<PER-SHARE-DISTRIBUTIONS>                            0<F1>
<RETURNS-OF-CAPITAL>                                 0<F1>
<PER-SHARE-NAV-END>                               1.00<F1>
<EXPENSE-RATIO>                                   0.83<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>INVESTOR CLASS
</FN>
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001039803
<NAME> PROFUNDS
<SERIES>
   <NUMBER> 062
   <NAME> MONEY MARKET PROFUND
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             NOV-17-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                                0
<INVESTMENTS-AT-VALUE>                         291,594
<RECEIVABLES>                                   19,938
<ASSETS-OTHER>                                  28,689
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 340,221
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       50,749
<TOTAL-LIABILITIES>                             50,749
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       289,475
<SHARES-COMMON-STOCK>                            2,511<F2>
<SHARES-COMMON-PRIOR>                                0<F2>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                             3
<ACCUM-APPREC-OR-DEPREC>                             0
<NET-ASSETS>                                   289,472
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                  15,685
<EXPENSES-NET>                                   1,829
<NET-INVESTMENT-INCOME>                         13,856
<REALIZED-GAINS-CURRENT>                           (3)
<APPREC-INCREASE-CURRENT>                            0
<NET-CHANGE-FROM-OPS>                           13,853
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0<F2>
<DISTRIBUTIONS-OF-GAINS>                             0<F2>
<DISTRIBUTIONS-OTHER>                                0<F2>
<NUMBER-OF-SHARES-SOLD>                          2,511<F2>
<NUMBER-OF-SHARES-REDEEMED>                          0<F2>
<SHARES-REINVESTED>                                  0<F2>
<NET-CHANGE-IN-ASSETS>                         289,472
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                                0
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 26,297
<AVERAGE-NET-ASSETS>                               158<F2>
<PER-SHARE-NAV-BEGIN>                             1.00<F2>
<PER-SHARE-NII>                                      0<F2>
<PER-SHARE-GAIN-APPREC>                              0<F2>
<PER-SHARE-DIVIDEND>                                 0<F2>
<PER-SHARE-DISTRIBUTIONS>                            0<F2>
<RETURNS-OF-CAPITAL>                                 0<F2>
<PER-SHARE-NAV-END>                               1.00<F2>
<EXPENSE-RATIO>                                   1.83<F2>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F2>SERVICE CLASS 
</FN>
        

</TABLE>


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