PROFUNDS
497, 1998-08-14
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PROSPETCUS













PROFUNDS







   
APRIL 24, 1998 AS REVISED ON
AUGUST 3, 1998
    








<PAGE>



                                TABLE OF CONTENTS


   
                                   PAGE                                     PAGE
                                   ----                                     ----
OVERVIEW ..........................   3      The UltraShort OTC ProFund.....  25
FEES AND EXPENSES .................   7      The Money Market ProFund ......  27
    Fee Tables ....................   7  INVESTMENT POLICIES AND                
    Examples  .....................   9      TECHNIQUES ....................  29
FINANCIAL HIGHLIGHTS ..............  10      Futures Contracts and              
SHAREHOLDERS' GUIDE ...............  12          Related Options ...........  29
    How to Invest in the                     Index Options Transactions ....  30
        ProFunds  .................  12      Options on Securities .........  31
    How to Exchange Shares of                Short Sales ...................  32
        the ProFunds ..............  13      U.S. Government Securities ....  32
    How to Withdraw Money                    Repurchase Agreements .........  33
        (Redeem Shares) ...........  14      Cash Reserves .................  34
    Special Information                      Transaction Expenses ..........  34
        Regarding Telephone                  Other Investment Policies .....  34
        Requests for Redemptions             Cash Management Portfolio .....  35
        and Exchanges .............  15      Special Information                
    How to Make Automatic                        Concerning Master-Feeder       
        Investments, Exchanges                   Fund Structure  ...........  41
        and Withdrawals  ..........  16  TAXES .............................  43
    Dividends and Distributions ...  16  MANAGEMENT OF THE                      
    Tax-Sheltered Retirement Plans.  17      PROFUNDS ......................  45
    Miscellaneous  ................  18      Investment Advisors ...........  45
SPECIAL CONSIDERATIONS ............  20      Service Providers  ............  47
    Tracking Error ................  20      Cost and Expenses .............  49
    Aggressive Investment                    Portfolio Trading Practices ...  50
        Techniques ................  20  GENERAL INFORMATION                    
    Leverage ......................  21      ABOUT THE TRUST   .............  51
    Non-Diversified Status ........  21      Organization and Description       
INVESTMENT OBJECTIVES .............  23          of Shares of Beneficial        
    General .......................  23          Interest ..................  51
    Benchmarks of the ProFunds ....  23      Determination of Net Asset         
    The Bull ProFund and                         Value .....................  51
        UltraBull ProFund  ........  24      Fundamental Policies. .........  53
    The Bear ProFund                         Trustees and Officers .........  54
        and UltraBear ProFund .....  24      Auditors ......................  54
    The Ultra OTC ProFund .........  25  
    

<PAGE>
   
[GRAPHIC OMITTED]               7900 WISCONSIN AVENUE, SUITE 300
                                BETHESDA, MARYLAND 20814
                                (888) PRO-5717 (FINANCIAL PROFESSIONALS ONLY)
                                (888) PRO-FNDS (888) 776-3637) (FOR ALL OTHERS)

    

- --------------------------------------------------------------------------------
   
     This prospectus  describes seven 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:

   
- ----------------------    ------------------------------------------------------
       FUND                                     BENCHMARK
- ----------------------    ------------------------------------------------------

Bull ProFund              S&P 500  Composite  Stock  Price  Index(TM)  ("S&P 500
                          Index")
UltraBull ProFund         Twice (200%) the performance of the S&P 500 Index
Bear ProFund              Inverse  (opposite) of the  performance of the S&P 500
                          Index
UltraBear ProFund         Twice (200%) the inverse (opposite) of the performance
                          of the S&P 500 Index
UltraOTC ProFund          Twice  (200%)  the   performance  of  the  NASDAQ  100
                          Index(TM)
UltraShort OTC ProFund    Twice (200%) the inverse (opposite) of the performance
                          of the NASDAQ 100 Index(TM)
    

   
     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

   
      PROFUND ADVISORS LLC                          BANKERS TRUST COMPANY
      --------------------                          ---------------------
    Non-Money Market ProFunds                     Cash Management Portfolio

    

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 as revised on August 3, 1998
    



<PAGE>


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.


     2

<PAGE>



                                    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 UltraShort OTC ProFund.  The investment objective of the UltraShort OTC
ProFund is to provide  investment  results that  correspond each day to twice of
the inverse (opposite) of the performance of the NASDAQ 100 Index(Trademark).
    

     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 objec

                                                                          3

<PAGE>



tive 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."

     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.


     4

<PAGE>



     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 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.



                                                                          5

<PAGE>



   
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.









     6

<PAGE>



                                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>
   


                                                                                               UltraShort     Money
                              Bull        UltraBull     Bear        UltraBear     UltraOTC     OTC            Market
                              ProFund     ProFund       ProFund     ProFund       ProFund      ProFund        ProFund
<S>                           <C>         <C>           <C>         <C>           <C>          <C>            <C>

Shareholder Transaction
  Expenses:
Sales Load Imposed On
  Purchases ................  None        None          None        None          None         None           None
Sales Load Imposed On
  Reinvested Dividends......  None        None          None        None          None         None           None
Deferred Sales Load ........  None        None          None        None          None         None           None
Redemption Fees(1) .........  None        None          None        None          None         None           None
Exchange Fees...............  None        None          None        None          None         None           None

Annual Fund Operating
  Expenses:
Advisory Fees...............  0.75%       0.75%         0.75%       0.75%         0.75%        0.75%          0.15%(2)
12b-1 Fees..................  None        None          None        None          None         None           None
Other Expenses After
  Waiver(3)(4)..............  0.58%       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%        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>

                                                                                               UltraShort     Money
                              Bull        UltraBull     Bear        UltraBear     UltraOTC     OTC            Market
                              ProFund     ProFund       ProFund     ProFund       ProFund      ProFund        ProFund
<S>                           <C>         <C>           <C>         <C>           <C>          <C>            <C>

Shareholder Transaction
  Expenses:
Sales Load Imposed on
  Purchases ................  None        None          None        None          None         None           None
Sales Load Imposed on
  Reinvested Dividends .....  None        None          None        None          None         None           None
Deferred Sales Load ........  None        None          None        None          None         None           None
Redemption Fees(1) .........  None        None          None        None          None         None           None
Exchange Fees...............  None        None          None        None          None         None           None
</TABLE>
    

                                                                          7

<PAGE>



<TABLE>
<CAPTION>
   
                                                                                               UltraShort     Money
                              Bull        UltraBull     Bear        UltraBear     UltraOTC     OTC            Market
                              ProFund     ProFund       ProFund     ProFund       ProFund      ProFund        ProFund
<S>                           <C>         <C>           <C>         <C>           <C>          <C>            <C>
Annual Fund Operating
  Expenses:
Advisory Fees...............  0.75%       0.75%         0.75%       0.75%         0.75%        0.75%          0.15%(2)
12b-1 Fees .................  None        None          None        None          None         None           None
Other Expenses After
  Waiver(3)(4)..............  1.58%       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%        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.


     8


<PAGE>



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:

   
                                                           1 Year        3 Years

Bull ProFund .......................................         $14           $42
UltraBull ProFund ..................................          14            42
Bear ProFund .......................................          14            42
UltraBear ProFund ..................................          14            42
UltraOTC ProFund ...................................          14            42
UltraShort OTC ProFund .............................          14            42
Money Market ProFund ...............................           8            26


   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:


                                                           1 Year        3 Years

Bull ProFund .......................................         $24           $73
UltraBull ProFund ..................................          24            73
UltraBear ProFund ..................................          24            73
UltraOTC ProFund ...................................          24            73
UltraShort OTC ProFund .............................          24            73
Money Market ProFund ...............................          19            60
    

   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.



                                                                          9

<PAGE>



                              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 UltraShort
OTC ProFund  has not yet  commenced  operations  as of December  31,  1997.  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.


     10

<PAGE>



                              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  UltraShort
OTC ProFund  has not yet  commenced  operations  as of December  31,  1997.  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.



                                                                         11

<PAGE>



                                  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:


     12

<PAGE>



     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.



                                                                         13

<PAGE>



     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:

     o    Name and telephone number;
     o    Account name and number;
     o    Taxpayer identification number;
     o    Number of or  percentage  of  shares  or dollar  value of shares to be
          exchanged;
     o    The name of the ProFunds from which the exchange is to be made; and
     o    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.


     14

<PAGE>



     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 REDEMPTION 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


                                                                         15

<PAGE>



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.


     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 sharehold-

     16


<PAGE>



ers. 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:

     o    Keogh Accounts -- Defined Contribution Plans (Profit-Sharing Plans)

     o    Keogh Accounts

     o    Money Purchase Plans

     o    Pension Plans

     o    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.


                                                                         17


<PAGE>



     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


     18

<PAGE>



undeliverable  checks or checks  that  remain  uncashed  for six months  will be
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.





                                                                         19

<PAGE>



                                     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  instruments  in a  segregated  account by these  ProFunds as "cover" for
these investment techniques.


     20

<PAGE>



     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, the UltraBear ProFund, the Ultra OTC ProFund and the
UltraShort OTC 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-  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


                                                                         21

<PAGE>



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.









     22

<PAGE>



                                   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.



                                                                         23

<PAGE>



     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.


     24

<PAGE>



     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 AND THE ULTRASHORT OTC 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.


                                                                         25

<PAGE>



     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
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.

   
     The  investment  objective  of the  UltraShort  OTC  ProFund  is to provide
investment  results that correspond each day to twice of the inverse  (opposite)
of the performance of the NASDAQ 100  Index(Trademark).  It is the policy of the
UltraShort  OTC ProFund to pursue its investment  objective of correlating  with
its benchmark  regardless of market conditions,  to remain nearly fully invested
and not to take defensive positions.

     The UltraShort OTC ProFund is designed to allow investors to seek to profit
from  anticipated  decreases in the NASDAQ 100  Index(Trademark)  or to hedge an
existing  portfolio of  securities  or mutual fund shares.  The  UltraShort  OTC
ProFund's  investment  objective  is to  provide  investment  results  that will
inversely   correlate   to  200%  of  the   performance   of  the   NASDAQ   100
Index(Trademark).  The  UltraShort  OTC ProFund  seeks to achieve  this  inverse
correlation on each trading day.

     If the  ProFund  achieved  a perfect  inverse  correlation  for any  single
trading  day,  the net asset value of the shares of the  UltraShort  OTC ProFund
would increase for that day  proportional  to twice any decrease in the level of
the NASDAQ 100 Index(Trademark).  Conversely,  the net asset value of the shares
of the UltraShort OTC ProFund would decrease for that day  proportional to twice
any increase in the level of the NASDAQ 100 Index(Trademark) for that day.

     For example, if the NASDAQ 100 Index(Trademark) were to decrease by 1% on a
particular day, investors in the UltraShort OTC ProFund should experience a gain
in net asset value of approximately 2% for that day.  Conversely,  if the NASDAQ
100  Index(Trademark)  were to  increase  by 1% by the  close of  business  on a
particular trading day, investors in the UltraShort OTC ProFund would experience
a loss in net asset value of approximately 2%.

     In pursuing its investment objective,  the UltraShort OTC ProFund generally
does not invest in  traditional  securities,  such as common  stock of operating
companies.  Rather,  the  UltraShort  OTC  ProFund  employs  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.
    


     26

<PAGE>



   
     Under these  techniques,  the UltraShort OTC 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  UltraShort  OTC
ProFund  terminates  the position.  The  UltraShort  OTC ProFund 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
UltraShort OTC ProFund pays or receives as the result of the transaction. Due to
the nature of the UltraShort OTC ProFund, investors could experience substantial
losses during sustained periods of rising equity prices.

     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


                                                                         27

<PAGE>



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  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.






     28


<PAGE>



                               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.

                                                                         29


<PAGE>



     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


     30

<PAGE>



prices in the stock market generally or, in the case of certain  indexes,  in an
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


                                                                         31

<PAGE>



a market will exist at all times for all outstanding  options  purchased or sold
by a 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,  UltraBear  ProFund and the  UltraShort  OTC 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


     32

<PAGE>



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  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


                                                                         33

<PAGE>



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 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,


     34

<PAGE>



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.

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 require-


                                                                         35

<PAGE>



ments,  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  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.)


     36

<PAGE>


     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.

     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



                                                                         37

<PAGE>



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.

     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 restric-



     38

<PAGE>



tions 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.

     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;



                                                                         39

<PAGE>



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
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.



     40

<PAGE>



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
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


                                                                         41

<PAGE>



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
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.







     42

<PAGE>



                                      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.

     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.


                                                                         43

<PAGE>



     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.







     44

<PAGE>



                                   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 pur-


                                                                         45

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suant  to a  presidential  appointment  as  commissioner  to the  United  States
Commodities  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


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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 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


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<PAGE>



providing feeder fund management and administrative services to the Money Market
ProFund,  which 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 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; pro-


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<PAGE>



viding 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
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.


                                                                         49

<PAGE>



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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<PAGE>



                               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>


   
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 1998: (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


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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


                                                                         53

<PAGE>



correspond sufficiently to its current benchmark.  If believed appropriate,  the
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

   
     PricewaterhouseCoopers   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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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
====================
  PricewaterhouseCoopers LLP
  100 East Broad Street
  Suite 2100
  Columbus, Ohio 43215-3671
    


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



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