PROFUNDS
N-1A EL/A, 1997-07-18
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                       SECURITIES AND EXCHANGE COMMISSION

                            Washington, D. C. 20549

                                   FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933     (X)

         Pre-Effective Amendment No.      1                 (X)
         Post-Effective Amendment No.  ___                  ( )

                                     and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940(X)
         Amendment No.   1

                                    PROFUNDS
               (Exact Name of Registrant as Specified in Charter)

         4600 North Park Avenue, Suite 100, Chevy Chase, Maryland 20815
              (Address of Principal Executive Offices) (Zip Code)

                                 (301) 657-0850
              (Registrant's Telephone Number, Including Area Code)

                                Louis M. Mayberg
                             4600 North Park Avenue
                                   Suite 100
                          Chevy Chase, Maryland 20815
               (Name and Address of Agent for Service of Process)

Approximate  Date  of  Commencement  of  the  Proposed  Public  Offering  of the
Securities:
         As soon as practicable after effectiveness.

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

         (  ) immediately upon filing pursuant to  paragraph (b) of rule 485.
         (  ) on (date) pursuant  to paragraph (b) (1) (v)  of rule 485.
         (  ) 60 days  after  filing  pursuant  to  paragraph  (a)  (1) of rule
485.
         (  ) on (date) pursuant to paragraph (a) (1) of rule 485.
         (  ) 75 days  after filing  pursuant  to  paragraph (a) (2) of rule
485.
         (  ) on (date) pursuant to paragraph (a) (2) of rule 485.

If appropriate, check the following box:

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

Pursuant   to  Rule   24f-2   under  the   Investment   Company   Act  of  1940,
Registrant  hereby  elects  to  register  an  indefinite  number  of  shares  of
beneficial  interest.  Registrant  hereby  amends  this  Registration  Statement
on  such  date  or  dates  as may be  necessary  to  delay  its  effective  date
until  Registrant  shall  file a further  amendment  which  specifically  states
that  this   Registration   Statement  shall  thereafter   become  effective  in
accordance  with  Section  8(a)  of the  Securities  Act of 1933  or  until  the
Registration   Statement   shall   become   effective   on  such   date  as  the
Securities  and  Exchange  Commission,  acting  pursuant to said  Section  8(a),
may determine.
<PAGE>



                                    PROFUNDS
                      REGISTRATION STATEMENT ON FORM N-1A
                             CROSS REFERENCE SHEET

Form N-1A Item No.                      Location Registration Statement



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

1.       Cover Page                       Outside Front Cover Page of Prospectus

2.       Synopsis                         Overview; Fees and Expenses

3.       Condensed Financial Information  Not Applicable

4.       General Description of           General Information about the Trust;
         Registrant                       Investment Objective and Policies

5.       Management of the Fund           Management of the Trust

6.       Capital Stock and                Dividends and
         Other Securities                 Distributions; Taxes

7.       Purchase of Securities           Shareholders Guide
         Being Offered

8.       Redemption or Repurchase         Shareholders Guide

9.       Legal Proceedings                Not Applicable

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

10.      Cover Page                       Outside Front Cover Page of Statement

11.      Table of Contents                Table of Contents

12.      General Information              Not Applicable
         and History

13.      Investment Objectives            Investment Policies and Techniques
         and Policies

14.      Management of the Registrant     Management of ProFunds
         Registrant

15.      Control Persons and Principal    Principal Holders of the Trust
         Holders of Securities

16.      Investment Advisory              Management of the Trust
         and Other Services

17.      Brokerage Allocation             Portfolio Transactions
         and Brokerage

18.      Capital Stock and                Not Applicable
         Other Securities

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

20.      Tax Status                       Not Applicable

21.      Underwriters                     Management of the Fund

22.      Calculation of                   Performance Information
         Performance Data

23.      Financial Statements             Financial Statements
<PAGE>




































                                     PART A
<PAGE>


                                    PROFUNDS

                                   [Address]
              (800) _______ (Registered Investment Advisors Only)
                         (800) _______ (For All Others)


   

The  ProFunds  are  six  no-load  funds  that  are   principally   designed  for
professional  money  managers and  investors who intend to invest in ProFunds as
part of an asset-allocation or market-timing investment strategy. Sales are made
without any sales charge at net asset value.  Each  non-money-market  ProFund is
intended to provide investment  exposure with respect to a particular segment of
the securities markets and seeks investment results that correspond over time to
a specified benchmark.  The ProFunds may be used independently or in combination
with each other as part of an overall investment  strategy.  Additional ProFunds
may be created from time to time.

The following are the ProFunds and their benchmarks:

       FUND                                   BENCHMARK

  Bull ProFund            S&P 500 Composite Stock Price Indextm  ("S&P Index")

  UltraBull ProFund       Twice (200%) the performance of the S&P Indextm

  Bear ProFund            Inverse (opposite) of the performance of the S&P Index

  UltraBear ProFund       Twice (200%) of the inverse  (opposite) of the
                          performance  of the S&P 500 Index

  OTC ProFund             NASDAQ 100 Index (NDX)


The  ProFunds  also  include the U.S.  Government  Money  Market  ProFund.  This
ProFund  seeks to provide  security  of  principal,  high  current  income,  and
liquidity   by   investing   primarily   in   U.S.   Government   money   market
instruments.  Shares  of the  U.S.  Government  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 U.S..  Government 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 are not intended for  investors  whose  principal
objective is current  income or  preservation  of capital.  The ProFunds may not
be a suitable  investment  for persons who intend to follow an "invest and hold"
strategy.  See "Special Risk  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,  dated ________,  1997,  containing  additional  information  about
ProFunds  has been filed with the  Securities  and  Exchange  Commission  and is
incorporated  herein  by  reference.  A copy of  this  Statement  of  Additional
Information  is  available,   without  charge,  upon  request  to  the  ProFunds
at the  address  above  or by  telephoning  ProFunds  at the  telephone  numbers
above.

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 ___________, 1997



                                    OVERVIEW


THE 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  Standard  & Poor's  500  Composite  Stock  Price  IndexTM  (the  "S&P500
Index").  The UltraBull ProFund's  investment objective is to provide investment
returns that  correspond to 200% of the  performance  of the S&P500  Index.  The
UltraBull  ProFund  should  gain more than the Bull  ProFund  when the prices of
the  securities  in the  S&P500  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  correlate to
the  performance  of  the  S&P500  Index.  The  UltraBear  ProFund's  investment
objective  is to provide  investment  results that will  inversely  correlate to
200% of the performance of the S&P500 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&P500  Index.  Conversely,  the net asset value of
Bear ProFund  shares will decrease in direct  proportion to any increases in the
level of the  S&P500  Index.  The net asset  value of  shares  of the  UltraBear
ProFund's net asset should increase or decrease  approximately  twice as much as
does that of the Bear ProFund on any given day.

The OTC  ProFund.  The  investment  objective  of the OTC  ProFund is to provide
investment  results that  correspond to the NASDAQ 100 IndexTM.  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.

U.S.  Government  Money Market  ProFund.  The  investment  objective of the U.S.
Government  Money Market  ProFund (or the "Money Market  ProFund") is to provide
security of  principal,  high  current  income,  and  liquidity.  To achieve its
objective,  the  Money  Market  ProFund  invests  primarily  in U.S.  Government
Securities.
                                     * * *
A  discussion  of  each  ProFund's  investment   objective(s)  and  policies  is
provided  below under  "Investment  Objectives  and  Policies"  and  "Investment
Techniques."

SPECIAL RISK CONSIDERATIONS

The  ProFunds  present  certain  risks to  investors,  some that are usually not
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.  Certain  of these  risks are
review below.  This  discussion  should be read in conjunction  with the rest of
the prospectus and "Special Considerations."

The ProFunds  expects 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  an  asset-allocation  or  market-timing
investment  strategy.  These  investors  are likely to redeem or exchange  their
ProFund shares  frequently to take  advantage of  anticipated  changes in market
conditions.

These  strategies  employed by ProFund  shareholders  may result in considerable
assets moving in and out of the  ProFunds.  Consequently,  the ProFunds  expects
that the ProFunds  will  experience  unusually  high  portfolio  turnover.  This
portfolio turnover will likely cause higher expenses and additional costs.

A high  portfolio  turnover  also  increases  the risk that a  ProFund  will not
qualify as a "regulated  investment  company" under the Federal tax laws,  which
would  cause the  ProFund to be a separate  taxable  entity for  Federal  income
taxes  and  subject  its  income  to  Federal  taxes  at  corporate  rates.  The
imposition  of such taxes would  directly  reduce the return to an investor from
an  investment  in the  ProFund.  Additionally,  a high  portfolio  turnover may
adversely  affect the ability of the ProFund to meet its  investment  objective.
For further  information  concerning the portfolio  turnover of the ProFunds and
the Federal tax  treatment  of the  ProFunds,  see  "Investment  Objectives  and
Policies" and "Taxes" in this Prospectus.

Shareholders  in the Bear ProFund and the  UltraBear  ProFund  should lose money
while  prices  of  the  securities  in  the  S&P  Index  increase.  This  is the
opposite  likely  result  expected of investing in a  traditional  equity mutual
fund in a 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 adverse market conditions.

While the  ProFunds  do not expect  that the  returns  over a year will  deviate
adversely  from their  respective  current  benchmarks by more than ten percent,
certain  factors  may affect  their  ability to achieve  this  correlation.  See
"Risk Considerations" for a discussion of these factors.

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  require 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   "Investment   Objectives   and  Policies"  and   "Investment
Techniques and Other Investment Policies."
    

             PURCHASES, REDEMPTIONS, AND EXCHANGES OF TRUST SHARES

The  shares  of  the  ProFunds  may  be  purchased  and  redeemed,  without  any
respective sales or redemption  charge,  at the net asset value per share of the
ProFund next determined. Purchases of shares may be made by check or wire.

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 shareholders.

Shares  of any  ProFunds  may  be  exchanged  at  any  time  for  shares  of any
another  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 ADVISER

The  investment  adviser of ProFunds is ProFund  Advisors LLC. (the  "Advisor").
The Advisor is located in Bethesda, Maryland. See "Management of the ProFunds."

SHAREHOLDER SERVICING AND TRANSFER AGENT AND CUSTODIAN

_____________    serves   as   the   shareholder    servicing,    transfer   and
dividend  disbursement  agent  for  the  ProFunds.  ______  Bank  serves  as the
custodian of the ProFunds'  securities and other assets.  See "Management of the
ProFunds."


                               FEES AND EXPENSES

The following  table  illustrates  all expenses and fees that a  shareholder  of
the ProFunds will incur:

                        Shareholder Transaction Expenses

                         All ProFunds           Money Market
                     (except Money Market)         ProFund


Sales Load  Imposed
on Purchases                None                       None

Sales Load  Imposed on      None                       None
Reinvested Dividends

Deferred Sales Load         None                       None

Redemption Fees             None                       None

Exchange Fees               None                       None


Annual Fund Operating Expenses

Management Fees             0.70%                      0.45%
12b-1 Fees                  None                       None
Other Expenses*             ___%                       ____%
Total ProFund Operating
Expenses*                   ___%                       ____%


*Estimated

EXAMPLE

Assuming   hypothetical   investments   of  $1,000  in  each  of  the  ProFunds,
a  five-percent  annual  return,  and redemption at the end of each time period,
an  investor  in  each of the  ProFunds  would  pay  transaction  and  operating
expenses at the end of each year as follows:

                           1 Year                      3 Years

Each ProFunds
(except Money Market       _____                       _____

Government Money
Market ProFund             _____                       _____

The  same  level  of  expenses  would  be  incurred  if  the  investments   were
held throughout the period indicated.

The  preceding  table of fees and  expenses  is  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.   The
percentages  shown  above  are  based on  estimates.  The  five-percent  assumed
annual  return  is  for  comparison  purposes  only.  The  actual  return  for a
particular  ProFund  in  future  periods  may  be  more  or  less  depending  on
market  conditions,  and the  actual  expenses  an  investor  incurs  in  future
periods  may be more or less  than  those  shown  above  and will  depend on the
amount  invested  and on the  actual  growth  rate  of the  particular  ProFund.
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  Statement  of  Additional
Information.

                               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.

         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  $5,000.   For  all  other   shareholder   accounts
("Self-Directed  Accounts"),  the minimum  initial  investment  in the  ProFunds
is  $15,000.   These  minimums  apply  to  retirement   plan  accounts  and  are
determined  based  upon the  total of  investment  in all of the  ProFunds.  The
ProFunds,   at  its   discretion,   may   accept   lesser   amounts  in  certain
circumstances.  There is no  minimum  amount  for  subsequent  investments  in a
ProFund.   The  ProFunds  reserves  the  right  to  reject  or  refuse,  at  the
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
         [Address]

         How to Invest By Wire Transfer
         ------------------------------

Request a wire transfer to:

         ProFunds
         [Wire Information]

After  instructing  your  bank to  transfer  money  by  wire,  please  call  the
ProFunds  and inform the  ProFunds  as to the  amount you have  transferred  and
the  name of the bank  sending  the  transfer.  Your  bank may  charge a fee for
such  services.  If the purchase is canceled  because your wire  transfer is not
received,  you may be liable for any loss that the ProFunds may incur.

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 the ProFunds' transfer agent.

         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
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
numbers indicated on the cover of this Prospectus.

Exchanges  with  respect  to  Self-Directed  Accounts  must be for at least  the
lesser of $1,000 or 100% of the  account  value for the  ProFund  from which the
transfer is made.  Telephone  exchanges are subject to the  procedures set forth
below.

To   implement   an   exchange,   shareholders   must   provide   each   of  the
following information:

         --       Account name and number.
         --       Taxpayer identification number.
         --       Number  of  or   percentage  of  shares  or  dollar  value  of
                  shares to be exchanged
         --       The  name  the  ProFunds  from  which  the  Exchange  is to be
                  made,
         --       The  name  the  ProFunds  to  which  the  Exchange  is  to  be
                  made,

Exchanges  may be made only if 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.  Shares of the
Money  Market  ProFund  received  in an  exchange  for shares of the OTC ProFund
are issued on the third  business  day  following  the day on which the  ProFund
receives the exchange request.

How to Withdraw Money (Redemptions)

         General
         -------

An  investor   may   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.  There are no redemption  charges.  Redemptions  may
be made by letter or by telephone, subject to the procedures set forth below.

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  the  lesser  of $1,000 or 100% of
the account value for the ProFund from which the transfer is made.

Payment  for  the  redemption  price  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 may 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 10
business  days).  An  investor  may  avoid  a  delay  in  receiving   redemption
proceeds by purchasing shares with a certified check.

         Wire of Withdraws
         -----------------

Shareholders   may  wire   proceeds  of  a  withdrawal   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.  If any  investor
purchases  shares of a  ProFund  by check,  the  purchaser  may not wire out any
proceeds of a redemption of such shares for the 30 calendar  days  following the
purchase.

         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  the  banks  apply  to  checking  accounts.   A  Money  Market
ProFund  account may not be closed by draft check.

         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,   or  clearing  agency;  or  a
savings association.

Procedures For Telephone Redemptions And Exchanges

Written   requests  for  redemptions  and  exchanges   should  be  sent  to  the
ProFunds,   ________________________,   and  should  be  signed  by  the  record
owner or owners.  Telephone  redemption  and exchange  requests  relating to the
ProFunds  may be made  by  calling  (800)______,  on any  day  the  ProFunds  is
open for  business.  Such  requests  may be made only between 8:30 A.M. and 3:45
P.M.,  Eastern  Time.  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.   Telephone
redemption  and  exchange  privileges  may  be  terminated  or  modified  by the
ProFunds at any time.

When  acting on  instructions  believed  to be genuine,  the  ProFunds  will not
be  liable  for any  loss  resulting  from a  fraudulent  telephone  transaction
request  and the  investor  would bear the risk of any such loss.  The  ProFunds
will employ  reasonable  procedures to confirm that telephone  instructions  are
genuine;  and  if the  ProFunds  does  not  employ  such  procedures,  then  the
ProFunds  may be  liable  for  any  losses  due to  unauthorized  or  fraudulent
instructions.   The  ProFunds  follows  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 five  business days
after such  transactions,  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 drastic
economic  or  market   changes.   If  such  conditions   occur,   redemption  or
exchange orders can be made by mail.

Tax-sheltered Retirement Plans

Tax-sheltered  retirement  plans  of  the  following  types  will  be  available
to investors:

         --       Individual Retirement Accounts (IRAs)
         --       Keogh Accounts - Defined  Contribution  Plans  (Profit-Sharing
                  Plans)
         --       Keogh Accounts
         --       Money Purchase Plans
         --       Pension Plans
         --       Internal Revenue Code Section 403(b)Plans

         Retirement  plans  are  charged  an  annual  $15.00   maintenance  fee.
Additional  information  regarding  these accounts may be obtained by contacting
the ProFunds.

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   from  the  ProFunds  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 are
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 Money Market  ProFund  intend to  distribute  annually
any   net    investment    income   and   net   realized    capital   gains   to
shareholders.  The  ProFunds  may  declare  a  special  distribution  for any of
these  ProFunds if the  ProFunds  believe that such a  distribution  would be in
the best interests of its shareholders.

         U.S.  Government Money Market ProFund
         -------------------------------------

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.  The Money Market
ProFund,  however,  may revise this  dividend  and  distribution  policy of the,
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.

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.  The  ProFunds  reserve  the  right  to
modify  its  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 NYSE,  the  Federal  Reserve  Bank of New
York (the "New York  Fed"),  the NASDAQ or the CME,  as  appropriate,  is closed
(other  than  customary  weekend  or holiday  closings)  or trading on the NYSE,
the  NASDAQ,  or  the  CME,  as  appropriate,   is  restricted;   (ii)  for  any
period   during   which  an   emergency   exists   so  that   disposal   of  the
ProFund's  investments  or the  determination  of its  net  asset  value  is not
reasonably  practicable;  or (iii) for such other periods as the Commission,  by
order, may permit for protection of the ProFund's investors.

         Transaction Charges
         -------------------

In addition to charges  described  elsewhere  in this  Prospectus,  the ProFunds
also  may  make  a  charge  of  $25  for  items  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 the ProFunds' transfer agent.
   

                             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.

Portfolio Turnover

The ProFunds  anticipates that its 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 of the  ProFunds  (see  "Exchanges"),  which would cause that  ProFund to
experience high portfolio  turnover.  Because each ProFund's  portfolio turnover
rate to a great  extent will depend on the  purchase,  redemption,  and exchange
activity of the ProFund's  investors,  it is very difficult to estimate what the
ProFund's  actual  turnover  rate  generally  will be.  Pursuant  to the formula
prescribed by the Securities and Exchange  Commission  (the  "Commission"),  the
portfolio  turnover  rate for each  ProFund  is  calculated  without  regard  to
securities,  including options and futures contracts,  having a maturity of less
than one year.  The Bear ProFund,  the UltraBull  ProFund,  the Bear ProFund and
the UltraBear  ProFund  typically  hold most of their  investments in short-term
options and futures contracts,  which,  therefore,  are excluded for purposes of
computing portfolio turnover.

Significant  portfolio  turnover  will tend to  increase  the  realization  by a
ProFund of gains (or  losses) on  securities  that have been held by the ProFund
for less than three  months.  Any such realized  gains on  securities  that have
been held by a ProFund for less than three  months,  and other  factors  related
to large cash flows into and out of the  ProFund,  will  increase the risk that,
in any given year,  the  ProFund  may fail to qualify as a regulated  investment
company  under  Subchapter  M of the U.S.  Internal  Revenue  Code of  1986,  as
amended (the  "Code").  If a ProFund  should so fail to qualify  under the Code,
the ProFund' net  investment  income and net capital gain would become  subject
to Federal  income tax at corporate  rates.  The  imposition of such taxes would
directly  reduce the return to an investor  from an  investment  in the ProFund.
(See  "Taxes.")  In  addition,  a higher  portfolio  turnover  rate would likely
involve  correspondingly  greater brokerage commissions and other expenses which
would be borne by the  ProFund.  Furthermore,  a  ProFund's  portfolio  turnover
level  may  adversely  affect  the  ability  of the  ProFund  to  achieve  their
investment objectives.

Tracking Error

While the  ProFunds  do not expect  that the  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  ProFund;  (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) a ProFund  holds
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  can 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.  The ProFunds expects that the Bear
ProFund,  the UltraBull  ProFund,  the Bear ProFund,  and the UltraBear  ProFund
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.

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;  (4) the  possible  absence of a
liquid secondary  market for any particular  instrument at any time; and (5) the
possible  need to defer  closing  out  certain  positions  to avoid  adverse tax
consequences.  For further  information  regarding these investment  techniques,
see "Investment Techniques and Other Investment Policies."

Leverage

The Ultra  Bull  ProFund  and the Ultra Bear  ProFund  intend to  regularly  use
leveraged  investment  techniques  in  pursuing  their  investment   objectives.
Utilization  of  leveraging  involves  special  risks and  should be  considered
speculative.  Leverage  exists when a ProFund  achieves the right to a return on
a capital  base that  exceeds the  investment  the Fund has  invested.  Leverage
creates  the  potential  for  greater  capital  gains to  shareholders  of these
ProFunds during  favorable market  conditions and the risk of magnified  capital
losses  during  adverse  market  conditions.  Leverage  should  cause  a  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.


                       INVESTMENT OBJECTIVES AND POLICIES

General

The  ProFunds  are  principally  designed for  professional  money  managers and
investors who intend to follow an asset-allocation  or market-timing  investment
strategy.  Except for the Money  Market  ProFund,  each  ProFund is  intended to
provide  investment  exposure  with  respect  to a  particular  segment  of  the
securities  markets.  These  ProFunds seek  investment  results that  correspond
over time 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  the 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 the  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 a  year.  See
"Special Risk 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.

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&P500  Index.  The  investment
objective  of the  UltraBull  ProFund  is to  provide  investment  returns  that
correspond  to 200% of the  performance  of the  S&P500  Index.  These  ProFunds
seek to achieve this  inverse  correlation  result on each  trading  day.  Under
their  investment  objectives,  the UltraBull  ProFund  should  produce  greater
gains to investors  when the S&P500 Index rises and greater  losses when the S&P
Index declines over the corresponding gain or loss of the Bull ProFund.

In  attempting to achieve  their  objective,  the Bull ProFund and the UltraBull
ProFund  expect  that a  substantial  portion  of its  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 ProFund's benchmark.

The Bear ProFund and UltraBear ProFund

The  Bear  ProFund  and  the  UltraBear  ProFund  Plus  are  designed  to  allow
investors   to  speculate   on   anticipated   decreases  in  the  S&P500  Index
shareholders  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  (100%) of the S&P500
Index. The UltraBear  ProFund's  investment  objective is to provide  investment
results that will inversely  correlate to 200% of the  performance of the S&P500
Index.  These ProFunds seek to achieve this inverse  correlation  result on each
trading day.

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&P500  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&P500  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&P500  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&P500  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 ProFund could experience  substantial  losses during sustained  periods of
rising  equity  prices,  with  losses  of  investors  in the  UltraBear  ProFund
approximately twice as much as the losses of investors in the UltraBear Fund.

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

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 Bear ProFund  terminates  the position.  These ProFunds will generally
realize a gain if the  underlying  security or index  declines in price  between
those  dates.  This result is the  opposite of what one would expect from a cash
purchase of a long  position  in a  security.  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 Bear  ProFund pays or receives as the result of
the transaction.

The OTC ProFund

The  investment  objective of the OTC ProFund is to provide  investment  results
that  correspond  to  a  benchmark  for  over-the-counter  securities.  The  OTC
ProFund's current benchmark is the NASDAQ 100 Index.

The OTC ProFund does not aim to hold all of the 100  securities  included in the
NASDAQ 100  Index.  Instead,  the OTC  ProFund  intends  to hold  representative
securities  included  in the  NASDAQ  100 Index or other  instruments  which the
Advisor  believes  will provide  returns that  correspond to those of the NASDAQ
100 Index.  The OTC ProFund may engage in  transactions  on stock index  futures
contracts,  options on stock index futures contracts,  and options on securities
and stock indexes.

Companies whose  securities are traded on the  over-the-counter  ("OTC") markets
generally  are  smaller  market-capitalization  or newer  companies  than  those
listed  on the New York  Stock  Exchange  (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-capitalized    companies   to   changing   economic    conditions   than
larger-capitalized,  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.

U.S.  Government Money Market ProFund

The investment  objectives of the U. S. Government  Money Market ProFund (or the
"Money  Market  ProFund") are security of principal,  high current  income,  and
liquidity.  The  Money  Market  ProFund  seeks  to  achieve  its  objectives  by
investing in U.S.  Government  Securities,  including  money market  instruments
which are  issued or  guaranteed,  as to  principal  and  interest,  by the U.S.
Government,  its  agencies  or  instrumentalities,  as  well  as  in  repurchase
agreements  collateralized  fully by U.S. Government  Securities.  An investment
in the Money  Market  ProFund  is neither  insured  nor  guaranteed  by the U.S.
Government.  The Money  Market  ProFund  seeks to maintain a constant  $1.00 net
asset value per share, although this cannot be assured.

The  Money  Market  ProFund  may  invest  in  securities  that  take the form of
participation  interests  in, and may be  evidenced  by  deposit or  safekeeping
receipts  for, any of the  foregoing  securities.  Participation  interests  are
pro rata interests in U.S.  Government  Securities;  and instruments  evidencing
deposit or safekeeping  are  documentary  receipts for such original  securities
held in custody by others.

The Benchmarks

The S&P500 Index (SPX).  Standard & Poor's  Corporation  ("S&P") chooses the 500
stocks  comprising  the S&P500 Index on the basis of market  values and industry
diversification.  Most of the stocks in the  S&P500  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&P500  Index for  diversification  purposes.  The S&P 500 Index as  referred to
this  Prospectus  does not include the effect of dividends  paid on the stock of
the  companies  included  in the index.  S&P will not be a sponsor of, or in any
other way affiliated with, the ProFunds.

The NASDAQ 100 Index (NDX).  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 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.

                             INVESTMENT TECHNIQUES

Futures Contracts and Options

The ProFunds  (other than the Money  Market  ProFund) may purchase or sell stock
index  futures  contracts as a substitute  for a comparable  market  position in
the underlying  securities.  The ProFunds anticipate that that it will primarily
engage  in  transactions  in  futures   contracts  on  the  Chicago   Mercantile
Exchange (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  times
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  (selling) call 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.  In addition to the uses set forth  hereunder,  each
ProFund may also engage in futures and  futures  options  transactions  in order
to hedge or limit the  exposure of its  position,  to create a  synthetic  money
market position, and for certain other tax-related purposes.  See "Taxes."

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.

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 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,  to
create  synthetic  money market  positions,  and for certain  other  tax-related
purposes.  See "Taxes."

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  comprising  the stock index  selected  and the risk that there might
not be a  liquid  secondary  market  for the  option.  Because  the  value of an
index option  depends  upon  movements in the level of the index rather than the
price of a  particular  stock,  whether  a ProFund  will  realize a gain or loss
from the  purchase  or  writing  (sale)  of  options  on an index  depends  upon
movements  in the level of stock  prices in the stock  market  generally  or, in
the case of certain  indexes,  in an  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  with  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  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,  the option  will
become  worthless on the  expiration  date,  and the ProFund will realize a loss
in the amount of the premium paid, plus commission costs.

Although certain  securities  exchanges attempt to provide  continuously  liquid
markets in which  holders and  writers of options can close out their  positions
at any time prior to the  expiration  of the option,  no assurance  can be given
that a market will exist at all times for all outstanding  options  purchased or
sold by a  ProFund.  If an  options  market  were  to  become  unavailable,  the
ProFund  would be unable to realize  its  profits or limit its losses  until the
ProFund  could  exercise   options  it  holds,  and  the  ProFund  would  remain
obligated until options it wrote were exercised or expired.

Because  option  premiums paid or received by a ProFund are small in relation to
the market value of the investments  underlying the options,  buying and selling
put and call options can be more speculative  than investing  directly in common
stocks.

Short Sales

The  Bear  ProFund  and  the  UltraBear   ProFund  may  engage  in  short  sales
transactions  under  which the  ProFund  sells a  security  it does not own.  To
complete  such a  transaction,  the  ProFund  must  borrow the  security to make
delivery to the buyer.  The ProFund  then is  obligated  to replace the security
borrowed  by  purchasing  the  security  at the  market  price  at the  time  of
replacement.  The  price  at such  time may be more or less  than  the  price at
which the  security  was sold by the  ProFund.  Until the  security is replaced,
the ProFund is required to pay to the lender  amounts  equal to any dividends or
interest  which accrue  during the period of the loan.  To borrow the  security,
the  ProFund  also may be required to pay a premium,  which would  increase  the
cost of the  security  sold.  The proceeds of the short sale will be retained by
the broker, to the extent necessary to meet the margin  requirements,  until the
short position is closed out.

Until the ProFund closes its short  position or replaces the borrowed  security,
the ProFund will cover its position  with an  offsetting  position or maintain a
segregated  account  containing cash or liquid  instruments at such a level that
the amount  deposited in the account plus the amount  deposited  with the broker
as collateral will equal the current value of the security sold short.
    

U.S. Government Securities

The  ProFunds  may  invest  in  U.S.   Government   Securities   in  pursuit  of
their  investment  objectives,  as "cover" for the investment  techniques  these
ProFunds employ, or for liquidity purposes.

Yields  on  U.S.   Government   Securities   are   dependent  on  a  variety  of
factors,  including  the  general  conditions  of the  money  and bond  markets,
the size of a  particular  offering,  and the maturity of the  obligation.  Debt
securities  with  longer  maturities  tend  to  produce  higher  yields  and are
generally   subject   to   potentially   greater   capital    appreciation   and
depreciation  than  obligations  with  shorter   maturities  and  lower  yields.
The  market  value of U.S.  Government  Securities  generally  varies  inversely
with  changes  in  market   interest  rates.  An  increase  in  interest  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.

U.S.  Government  Securities  may be purchased at a discount.  Such  securities,
when held to  maturity  or  retired,  may  include an  element of capital  gain.
Capital  losses may be  realized  when such  securities  purchased  at a premium
are held to  maturity  or are  called or  redeemed  at a price  lower than their
purchase  price.  Capital  gains or losses  also may be  realized  upon the sale
of securities.

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   will  monitor  the
creditworthiness  of  each  of  the  firms  which  is a  party  to a  repurchase
agreement  with any of the ProFunds.  In the event of a default or bankruptcy by
the  seller,   the  ProFund  will  liquidate  those  securities   (whose  market
value,  including  accrued  interest,  must  be at  least  equal  to 100% of the
dollar  amount  invested  by the  ProFund  in each  repurchase  agreement)  held
under  the  applicable   repurchase   agreement,   which  securities  constitute
collateral  for the  seller's  obligation  to pay.  However,  liquidation  could
involve  costs or delays  and,  to the extent  proceeds  from the sales of these
securities  were  less  than  the  agreed-upon  repurchase  price,  the  ProFund
would  suffer a loss.  A  ProFund  also may  experience  difficulties  and incur
certain  costs in  exercising  its  rights  to the  collateral  and may lose the
interest  the  ProFund  expected  to  receive  under the  repurchase  agreement.
Repurchase  agreements  usually  are for  short  periods,  such  as one  week or
less,  but may be longer.  It is the  current  policy of the  ProFunds  to treat
repurchase  agreements  that do not mature  within  seven days as  illiquid  for
the purposes of their investment policies.

Cash Reserve

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.

Other Investment Policies

The   ProFunds   also  may  engage  in  certain   other   investment   practices
described below,  however none of the ProFunds  presently intends to invest more
than 5% of the  ProFund's  net  assets  in any of these  practices.  Each of the
ProFunds  may  purchase   securities  on  a  when-issued   or   delayed-delivery
basis,  and  also  may  lend  portfolio  securities  to  brokers,  dealers,  and
financial  institutions.   Each  ProFund  (other  than  Money  Market  ProFunds)
may borrow  money for  investment  purposes  or invest in  illiquid  securities.
Each of the  ProFunds  (other  than Money  Market  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.  A
more-detailed  explanation of these  investment  practices,  including the risks
associated  with each  practice,  is included  in the  Statement  of  Additional
Information.

                                     TAXES

The  Internal  Revenue  Code  provides  that  each  investment  portfolio  of  a
series  investment  company  is  to  be  treated  as  a  separate   corporation.
Accordingly,  each of the  ProFunds  will seek to  qualify  for  treatment  as a
regulated  investment  company  (a  "RIC")  under  Subchapter  M  of  the  Code.
Because  of  the  nature  of  the   investment   strategies   and  the  expected
turnover  of  the  portfolios  of  the  ProFunds,  there  can  be  no  assurance
that  a  ProFund  will  qualify  for  such  treatment.  If a  ProFund  qualifies
as a RIC and  satisfies  the  distribution  requirements  under the Code for any
taxable  year,  the  ProFund  itself  will  not  be  subject  to  income  tax on
the   ordinary   income   and   capital   gains  it  has   distributed   to  its
shareholders for that year.

To  qualify  as  a  RIC  under  the  Code,  a  ProFund   must  satisfy   certain
requirements,   including  the   requirements   that  the  ProFund   receive  at
least 90% of the  ProFund's  gross  income each year from  dividends,  interest,
payments  with  respect  to  securities  loans,  gains  from  the  sale or other
disposition  of  securities  or  foreign  currencies,  or other  income  derived
with respect to the  ProFund's  investments  in stock,  securities,  and foreign
currencies  (the  "90%  Test"),  and that the  ProFund  derive  less than 30% of
the  ProFund's  gross  income  from  the  sale or  other  disposition  of any of
the  following  instruments  which  have been held for less  than  three  months
(the "30% Test"):  (i) stock or securities;  (ii) certain options,  futures,  or
forward   contracts;   or  (iii)  foreign   currencies   (or  certain   options,
futures,  or forward  contracts on such  foreign  currencies).  Provided  that a
ProFund  (i) is a RIC and (ii)  distributes  at least 90% of the  ProFund's  net
investment  income  (including,   for  this  purpose,  net  realized  short-term
capital  gains),  the  ProFund  itself  will not be subject  to  Federal  income
taxes to the extent the  ProFund's net  investment  income and the ProFund's net
realized  long-and  short-term  capital  gains,  if any, are  distributed to the
shareholders   of   that   ProFund.    To   avoid   an   excise   tax   on   its
undistributed   income,   each  ProFund   generally  must  distribute  at  least
98% of its income, including its net long-term capital gains.

   

In addition,  because of the anticipated  frequency of redemptions and exchanges
of the  shares  of the  ProFunds,  each of the  ProFunds,  other  than the Money
Market  ProFund,  will  have  greater  difficulty  than  other  mutual  funds in
satisfying  the 30% Test.  The ProFunds  expects that investors in the ProFunds,
as part of their  market-timing  investment  strategy,  are  likely to redeem or
exchange  their  shares  in  the  ProFunds   frequently  to  take  advantage  of
anticipated  changes in market  conditions.  Such  redemptions  or exchanges are
likely to require a ProFund to sell  securities  to meet the  ProFund's payment
obligations.  The larger the volume of such  redemptions or exchanges,  the more
difficult  it will be for the ProFund to satisfy the 30% Test.  To minimize  the
risk  of  failing  the  30%  Test,  each  of the  ProFunds  intends  to  satisfy
obligations  in  connection  with  redemptions  and  exchanges  first  by  using
available  cash or  borrowing  facilities  and by selling  securities  that have
been held for at least  three  months or as to which there will be a loss or the
smallest  gain. If a ProFund also must sell  securities  that have been held for
less than three months,  then, to the extent possible,  the ProFund will seek to
conduct  such sales in a manner  that will  allow  such  sales to qualify  for a
special  provision  in the Code  that  excludes  from  the 30%  Test  any  gains
resulting from sales made as a result of "abnormal  redemptions."  To the reduce
the risk of failing the 30% Test,  the  ProFunds  (other  than the Money  Market
ProFund) also may engage in other investment  techniques,  including engaging in
transactions in futures  contracts and options on futures  contracts and indexes
on an  unrestricted  basis (subject to the  investment  policies of the ProFunds
and Commission  regulations).  Notwithstanding  these  actions,  there can be no
assurance  that a ProFund will be able to satisfy the 30% Test.  For  additional
information   concerning   this  special   Code   provision,   see   "Dividends,
Distributions, and Taxes" in the Statement of Additional Information.

If the  ProFunds  determines  that a  ProFund  will not  qualify  as a RIC under
Subchapter  M  of  the  Internal  Revenue  Code,  the  ProFunds  will  establish
procedures  for that  ProFund to reflect the  anticipated  tax  liability in the
ProFund's  net  asset  value.  To  the  extent  that  management  of  a  ProFund
determines  that  Federal  income  taxes will more likely than not be payable by
the  ProFund  with  respect  to the  ProFund's  current  tax year,  the  ProFund
intends to make a  good-faith  estimate of the  potential  tax  liability of the
ProFund  and to make  an  accrual  for tax  expenses.  Thereafter,  the  ProFund
would make a daily  determination  whether it is appropriate  for the ProFund to
continue to accrue for a tax expense and, if so, to make a  good-faith  estimate
of the  ProFund's  potential tax  liability.  Any amount by which the accrual is
reduced,  or the entire  amount of the  accrual if the ProFund  determines  that
the  accrual is no longer  appropriate,  will be  reclassified  as income to the
ProFund.
    

Under current law,  dividends  derived from  interest and dividends  received by
a ProFund,  together with  distributions  of any short-term  capital  gains,  if
any,  are taxable to the  shareholders  of the  ProFund,  as ordinary  income at
Federal  income  tax rates of up to 39.6%,  whether  or not such  dividends  and
distributions are reinvested in shares of such ProFund or are received in cash.

Under current law,  distributions  of net long-term  gains, if any,  realized by
a  ProFund  and  designated  as  capital  gains  distributions  will be taxed to
the  shareholders of that ProFund as long-term  capital gains  regardless of the
length  of  time  the  shares  of  that  ProFund  have  been  held.   Currently,
long-term  capital  gains of  individual  investors  are taxed at rates of up to
28%.  Statements  as  to  the  Federal  tax  status  of  shareholders  dividends
and  distributions  will  be  mailed  annually.   Shareholders   should  consult
their tax  advisors  concerning  the tax  status of the  ProFunds  dividends  in
their own states and localities.

Ordinary   dividends   paid   to   corporate   or   individual    residents   of
foreign   countries   generally   are   subject  to  a  30%   withholding   tax.
The  rate  of  withholding  tax  may be  reduced  if the  United  States  has an
income   tax   treaty   with   the   foreign   country   where   the   recipient
resides.   Capital   gains   distributions   received   by   foreign   investors
should,  in most cases,  be exempt  from U.S.  tax. A foreign  investor  will be
required to provide  the  ProFund  with  supporting  documentation  in order for
the  ProFund to apply a reduced  rate or exemption from U.S. withholding tax.

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 is required to withhold  taxes
at the rate of 31% on dividends,  capital gains distributions,  and redemptions.
Shareholders  who are  non-resident  aliens may be subject to a withholding  tax
on dividends earned.

                            MANAGEMENT OF THE TRUST

Investment Adviser

The  ProFunds  are  provided   investment  advice  and  management  services  by
ProFund  Advisor,  LLC, a Maryland  limited  liability  company formed on May 8,
1997, with offices at ____________,  Maryland (the  "Advisor").  __________ owns
a controlling interest in the Advisor.

Under  an   investment   advisory   agreement   between  the  ProFunds  and  the
Advisor,  dated  ____,  1997,  the  ProFunds  each pay the  Advisor  a fee at an
annualized  rate,  based on the  average  daily net assets  for each  respective
ProFund  of  0.70%  for all  non-money-market  ProFunds  and  .45% for the U. S.
Government  Money Market  ProFund.  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 ProFund,  subject to
the general  supervision  and control of the  ProFunds  and the  officers of the
ProFunds.   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,  provided  such fees
are  legitimate  and not  excessive,  also may make  payments to  broker-dealers
and other  financial  institutions  for their  expenses in  connection  with the
distribution   of   ProFund   shares,   and   otherwise   currently   pays   all
distribution costs for ProFund shares.

Service Providers

[To be added by pre-effective amendment.]

Costs and Expenses

The ProFunds  bear all  expenses of their  operations  other than those  assumed
by  the  Advisor  or  the  Servicer.  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
non-interested ProFunds fees and expenses.

Portfolio Trading Practices

The  Advisor   determines  which  securities  to  purchase  and  sell  for  each
ProFund,   selects  brokers  and  dealers  to  effect  the   transactions,   and
negotiates  commissions.  The  Advisor  expects  that the  ProFunds  may execute
brokerage or other agency transactions  through registered  broker-dealers,  for
a  commission,  in  conformity  with  the  1940  Act,  the  Securities  Exchange
Act  of  1934,  as  amended,  and  the  rules  and  regulations  thereunder.  In
placing  orders  for  portfolio   transactions,   the  Advisor's  policy  is  to
obtain the most favorable  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 higher  commission  may  sometimes be paid.  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 ProFunds.

                      GENERAL INFORMATION ABOUT THE TRUST

Organization and Description of Shares of Beneficial Interest

ProFunds  is  a  registered   open-end   investment   company   under  the  1940
Act.  ProFunds  was  organized as a Delaware  business  trust on April 17, 1997,
and has present  authorized  capital of unlimited shares of beneficial  interest
of no par  value  which  may be  issued  in  more  than  one  class.  Currently,
ProFunds  has  issued   shares  of  six   separate   classes.   Other   separate
classes may be added in the future.

All  shares of the  ProFunds  are freely  transferable.  The  ProFund  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.  ProFund  shares  have  equal
voting  rights,  except  that,  in a matter  affecting  a  particular  series in
the  ProFunds,  only  shares  of  that  series  may be  entitled  to vote on the
matter.

Under  the   Delaware   law,   ProFunds  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  ProFunds  shareholders.
ProFunds  shareholders  may  remove  Trustees  from  office  by votes  cast at a
meeting  of  ProFunds  shareholders  or by  written  consent.  If  requested  by
shareholders  of at least 10% of the  outstanding  shares of the  ProFunds,  the
ProFunds  will  call a meeting  of  ProFunds  shareholders  for the  purpose  of
voting  upon the  question  of  removal of a trustee  of the  ProFunds  and will
assist  in  communications   with  other  ProFunds shareholders.

Unlike the  stockholder  of a  corporation,  shareholders  of a  business  trust
such  as  the  ProFunds  could  be  held   personally   liable,   under  certain
circumstances,    for   the   obligations   of   the   business    trust.    The
Declaration  Trust  of  the  ProFunds,   however,  disclaims  liability  of  the
shareholders  or the  officers of the ProFunds  for acts or  obligations  of the
ProFunds  which are binding  only on the assets and  property  of the  ProFunds.
The  Declaration  of  ProFunds  provides  for  indemnification  out of  ProFunds
property for all loss and expense of any ProFunds  shareholder  held  personally
liable  for  the   obligations   of  the  ProFunds.   The  risk  of  a  ProFunds
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  ProFunds'  obligations  and this  risk,  thus,  should  be  considered
remote.

Classification of the ProFunds

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  industry  or  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 diversified investment company.

A ProFund's  classification  as a  "non-diversified"  investment  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 1940 Act.  The  ProFunds,
however,  intend to seek to  qualify as a  "regulated  investment  company"  for
purposes of the  Internal  Revenue  Code,  which  requires  that,  at the end of
each  quarter  of the  taxable  year,  (i) at least 50% of the  market  value of
the  ProFund's  total  assets  (a  diversified  investment  company  would be so
limited  with  respect to 75% of such market  value) be  invested in cash,  U.S.
Government  Securities,  the securities of other regulated investment companies,
and other  securities,  with such  securities of any one issuer  limited for the
purposes  of  this  calculation  to  an  amount  not  greater  than  5%  of  the
value  of   ProFund's   total   assets  and  10%  of  the   outstanding   voting
securities  of any one  issuer,  and (ii) not more  than 25% of the value of the
ProFund's  total  assets  be  invested  in  the  securities  of any  one  issuer
(other   than  U.S.   Government   Securities   or  the   securities   of  other
regulated investment companies).

Determination Of Net Asset Value

The net asset  values of the  shares of the  ProFunds  are  determined  each day
the New York  Stock  Exchange  (NYSE") is open for  business  as of the close of
normal trading on the NYSE  (generally,  4:00 P.M.,  Eastern  Time).  Currently,
the  NYSE  and the New  York  Fed are  closed  on  weekends,  and the  following
holiday   closings  have  been   scheduled   for  1997:   (i)  New  Year's  Day,
Martin  Luther  King  Jr.'s  Birthday,   Washington's  Birthday,   Good  Friday,
Memorial  Day,  July Fourth,  Labor Day,  Columbus  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  expects the same  holiday  schedules  to be observed in
the future, the NYSE may modify its holiday schedule at any time.

The  net  asset  value  of a  ProFund  serves  as the  basis  for  the  purchase
and  redemption  price  of that  ProFund's  shares.  The  net  asset  value  per
share  of  a  ProFund  is  calculated  by  dividing  the  market  value  of  the
ProFund's   securities   plus  the  values  of  its  other   assets,   less  all
liabilities,   by  the  number  of  outstanding   shares  of  the  ProFund.   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  will  utilize the  amortized  cost method in valuing
that ProFund's  portfolio  securities,  which method involves valuing a security
at its cost adjusted by a constant  amortization  to maturity of any discount or
premium,  regardless  of  the  impact  of  fluctuating  interest  rates  on  the
market value of the  instrument.  The purpose of this method of  calculation  is
to facilitate  the  maintenance  of a constant net asset value per share for the
Money Market  ProFund of $1.00.  However,  there is no assurance  that the $1.00
net asset value will be maintained.

For  purposes  of   determining   net  asset  value  per  share  of  a  ProFund,
futures  contracts  and  options  thereon  will be valued 15  minutes  after the
4:00  P.M.,   Eastern   Time,   close  of  trading  on  the  NYSE.   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.  The  value  of a  futures  contract
equals  the  unrealized  gain or  loss on the  contract  that is  determined  by
marking  the  contract  to the  current  settlement  price  for a like  contract
acquired on the day on which the futures  contract  is being  valued.  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.

OTC  securities  held by a ProFund  shall be valued at the last sales  price or,
if no sales  price is  reported,  the  mean of the last bid and  asked  price is
used.  The  portfolio  securities  of a  ProFund  that are  listed  on  national
exchanges  or  foreign  stock  exchanges  are taken at the last  sales  price of
such  securities on such  exchange;  if no sales price is reported,  the mean of
the last  bid and  asked  price  is used  Illiquid  securities,  securities  for
which  reliable  quotations  or  pricing  services  are not  readily  available,
and all  other  assets  will  be  valued  at  their  respective  fair  value  as
determined  in  good  faith  by,  or  under   procedures   established  by,  the
ProFunds,   which   procedures   may   include   the   delegation   of   certain
responsibilities  regarding  valuation  to the  Advisor or the  officers  of the
ProFunds.  The officers of the ProFunds  report,  as necessary,  to the ProFunds
regarding  portfolio  valuation  determination.   The  ProFunds,  from  time  to
time,  will  review  these  methods  of  valuation  and will  recommend  changes
which may be  necessary  to assure  that the  investments  of the  ProFunds  are
valued at fair value.

Fundamental Policies

The  investment  objectives  (except the specific  indexes  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  Investment  Company  Act of 1940,  as amended
(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  (the  "ProFunds" ) without the approval
of shareholders.

The  ProFunds  may  consider  changing a ProFund's  benchmark  if, for  example,
the  current   benchmark   becomes   unavailable;   the  ProFunds   believe  the
current  benchmark  no longer  serves  the  investment  needs of a  majority  of
shareholders   or  another   benchmark   better  serves  their  needs;   or  the
financial  or  economic   environment  makes  it  difficult  for  the  ProFund's
investment  results to  correspond  sufficiently  to its current  benchmark.  If
believed   appropriate,   the   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
___________________   are   the   auditors   of  and  the   independent   public
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 TRUST IN ANY JURISDICTION
IN WHICH SUCH AN OFFERING MAY NOT LAWFULLY BE MADE.
<PAGE>




































                                     PART B
<PAGE>





                             PROFUNDS SERIES TRUST

                      STATEMENT OF ADDITIONAL INFORMATION

                                   [Address]
                                 (301) ________
              (800) _______ (Registered Investment Advisors Only)
                         (800) _______ (For All Others)

   

The  ProFunds  are  six  no-load  funds  that  are   principally   designed  for
professional  money  managers and  investors who intend to invest in ProFunds as
part of an  asset-allocation  or market-timing  investment  strategy.  Sales are
made without any sales charge at net asset value.

Each  non-money-market  ProFund is intended to provide investment  exposure with
respect to a particular  segment of the securities  markets and seeks investment
results that  correspond  over time to a specified  benchmark.  The ProFunds may
be used  independently  or in combination  with each other as part of an overall
investment strategy.  Additional ProFunds may be created from time to time.

The following are the ProFunds and their benchmarks:

       FUND                                   BENCHMARK

  Bull ProFund            S&P 500 Composite Stock Price Indextm  ("S&P Index")

  UltraBull ProFund       Twice (200%) the performance of the S&P Indextm

  Bear ProFund            Inverse (opposite) of the performance of the S&P Index

  UltraBear ProFund       Twice (200%) of the inverse  (opposite) of the
                          performance  of the S&P 500 Index

  OTC ProFund             NASDAQ 100 Index (NDX)
                                       .

The  ProFunds  also  include the U.S.  Government  Money  Market  ProFund.  This
ProFund  seeks to provide  security  of  principal,  high  current  income,  and
liquidity by investing  primarily in U.S.  Government money market  instruments.
Shares  of the  U.S.  Government  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  U.S..   Government  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 are not intended for  investors  whose  principal
objective is current  income or  preservation  of capital.  The ProFunds may not
be a suitable  investment  for persons who intend to follow an "invest and hold"
strategy.  Because  of the  inherent  risks in any  investment,  there can be no
assurance that the ProFunds' investment objectives will be achieved.
    

This  Statement of  Additional  Information  is not a  prospectus.  It should be
read in conjunction with ProFunds'  Prospectus,  dated  _________,  1997. A copy
of the prospectus is available,  without charge,  upon request to at the address
above or y telephoning at the telephone numbers above.

         The date of this  Statement  of  Additional  Information  is  ________,
1997.


<PAGE>

                      STATEMENT OF ADDITIONAL INFORMATION

                               TABLE OF CONTENTS


                                                                 Page

THE PROFUNDS
INVESTMENT POLICIES AND TECHNIQUES
INVESTMENT RESTRICTIONS
PORTFOLIO TRANSACTIONS AND BROKERAGE
MANAGEMENT OF PROFUNDS
PERFORMANCE INFORMATION
FINANCIAL STATEMENTS
<PAGE>





                                  THE PROFUNDS

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


                       INVESTMENT POLICIES AND TECHNIQUES

General

Reference  is  made  to  the  sections  entitled   "Investment   Objectives  and
Policies"  and  Investment   Techniques  and  Other   Investment   Policies"  in
ProFund's  Prospectus  for  a  discussion  of  the  investment   objectives  and
policies   of  the   ProFunds.   In   addition,   set  forth  below  is  further
information  relating to the ProFunds.  The  discussion  below  supplements  and
should  read  in  conjunction  with  the  Prospectus.  Portfolio  management  is
provided  to  the  ProFunds  investment   adviser,   ProFund  Advisors  LLC.,  a
Maryland  limited  liability  company with offices at  ___________________  (the
"Advisor").

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

Certain   provisions  of  the  Internal  Revenue  Code,   related   regulations,
and  rulings of the  Internal  Revenue  Service  may have the effect of reducing
the  extent  to  which  certain  of the  following  techniques  may be used by a
ProFund,  either  individually  or  in  combination.  Furthermore,  there  is no
assurance   that  any  of  these   strategies  or  any  other   strategies   and
methods   of   investment   available   to  a   ProFund   will   result  in  the
achievement  of  the ProFund's objectives.

Futures Contracts

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

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

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

Index Options

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

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

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

When a  ProFund  writes an option on an  index,  the  ProFund  will be  required
to deposit and maintain  with a custodian  cash or liquid  instruments  equal in
value  to  the  aggregate  exercise  price  of a put  or  call  option  pursuant
to the  requirements  and the  rules  of the  applicable  exchange.  If,  at the
close of  business  on any day,  the market  value of the  deposited  securities
falls below the contract  price,  the ProFund  will  deposit with the  custodian
cash or liquid instruments equal in value to the deficiency.

Options on Securities

     The  non-money-market   ProFunds  may  buy  and  write  (sell)  options  on
securities for the purpose of realizing their ProFund's investment objective. By
writing a call option on securities, a ProFund becomes obligated during the term
of the option to sell the securities underlying the option at the exercise price
if the option is exercised. By writing a put option, a ProFund becomes obligated
during the term of the option to purchase the  securities  underlying the option
at the exercise price if the option is exercised. During the term of the option,
the writer may be assigned an exercise notice by the broker-dealer  through whom
the option was sold. The exercise notice would require the writer to deliver, in
the case of a call,  or take  delivery of, in the case of a put, the  underlying
security against payment of the exercise price. This obligation  terminates upon
expiration  of the option,  or at such  earlier  time that the writer  effects a
closing  purchase   transaction  by  purchasing  an  option  covering  the  same
underlying  security and having the same exercise price and  expiration  date as
the one previously  sold. Once an option has been exercised,  the writer may not
execute a closing purchase transaction.  To secure the obligation to deliver the
underlying  security in the case of a call  option,  the writer of a call option
isrequired  to deposit  in escrow the  underlying  security  or other  assets in
accordance with the rules of the Options Clearing  Corporation  (the "OCC"),  an
institution  created to interpose  itself between buyers and sellers of options.
The OCC  assumes the other side of every  purchase  and sale  transaction  on an
     exchange  and, by doing so, gives its  guarantee to the  transaction.  When
writing  (selling) call options on securities,  a ProFund may cover its position
by owning the underlying security on which the option is written. Alternatively,
the  ProFund may cover its  position  by owning a call option on the  underlying
security,  on a share for share  basis,  which is  deliverable  under the option
contract at a price no higher than the exercise price of the call option written
by the ProFund or, if higher,  by owning  such call  option and  depositing  and
maintaining in a segregated account cash or liquid instruments equal in value to
the difference between the two exercise prices. In addition, a ProFund may cover
its position by  depositing  and  maintaining  in a  segregated  account cash or
liquid  instruments  equal  in value to the  exercise  price of the call  option
written by the ProFund.  When a ProFund writes (sells) a put option, the ProFund
will  have and  maintain  on  deposit  with its  custodian  bank  cash or liquid
instruments  having a value  equal to the  exercise  value  of the  option.  The
principal  reason for a ProFund to write  (sell) call  options on stocks held by
the ProFund is to attempt to realize, through the receipt of premiums, a greater
return than would be realized on the underlying securities alone.

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

U.S. Government Securities

Each   ProFunds   also  may   invest   in  U.S.   Government   Securities.   U.S
Government  Securities  include U.S.  Treasury  securities,  which are backed by
the full faith and credit of the U.S.  Treasury  and which  differ only in their
interest  rates,  maturities,  and times of issuance.  U.S.  Treasury bills have
initial  maturities  of one year or  less;  U.S.  Treasury  notes  have  initial
maturities of one to ten years;  and U.S.  Treasury bonds generally have initial
maturities  of  greater  than ten  years.  Certain  U.S.  Government  Securities
are  issued  or  guaranteed  by  agencies  or   instrumentalities  of  the  U.S.
Government  including,  but not  limited  to,  obligations  of  U.S.  Government
agencies   or   instrumentalities   such  as  the  Federal   National   Mortgage
Association,   the  Government   National   Mortgage   Association,   the  Small
Business   Administration,   the  Federal   Farm  Credit   Administration,   the
Federal  Home Loan Banks,  Banks for  Cooperatives  (including  the Central Bank
for   Cooperatives),   the  Federal   Land  Banks,   the  Federal   Intermediate
Credit Banks,  the Tennessee Valley  Authority,  the  Export-Import  Bank of the
United  States,  the  Commodity  Credit   Corporation,   the  Federal  Financing
Bank,  the Student Loan  Marketing  Association,  and the National  Credit Union
Administration.  Some  obligations  issued  or  guaranteed  by  U.S.  Government
agencies   and   instrumentalities,    including,   for   example,    Government
National Mortgage Association  pass-through  certificates,  are supported by the
full  faith and  credit of the U.S.  Treasury.  Other  obligations  issued by or
guaranteed  by  Federal  agencies,  such  as  those  securities  issued  by  the
Federal  National  Mortgage  Association,  are  supported  by the  discretionary
authority  of  the  U.S.  Government  to  purchase  certain  obligations  of the
Federal  agency,  while other  obligations  issued by or  guaranteed  by Federal
agencies,  such as those of the Federal  Home Loan Banks,  are  supported by the
right  of  the  issuer  to  borrow  from  the  U.S.  Treasury.  While  the  U.S.
Government   provides  financial  support  to  such  U.S.   Government-sponsored
Federal  agencies,  no  assurance  can be given  that the U.S.  Government  will
always  do so,  since  the U.S.  Government  is not so  obligated  by law.  U.S.
Treasury   notes  and  bonds   typically  pay  coupon   interest   semi-annually
and repay the  principal  at  maturity.  The Bond  ProFund  will  invest in such
U.S.  Government  Securities  only  when  the  Advisor  is  satisfied  that  the
credit risk with respect to the issuer is minimal.

Repurchase Agreements

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

Reverse Repurchase Agreements

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

Borrowing

The   ProFunds   (other   than  Money   Market)   may  borrow   money  for  cash
management   purposes  or  investment   purposes.   Borrowing   for   investment
is   known   as    leveraging.    Leveraging    investments,    by    purchasing
securities   with   borrowed   money,   is   a   speculative   technique   which
increases  investment  risk, but also increases  investment  opportunity.  Since
substantially  all of a ProFund's  assets will  fluctuate in value,  whereas the
interest  obligations  on  borrowings  may be  fixed,  the net  asset  value per
share of the ProFund will  increase  more when the  ProFund's  portfolio  assets
increase   in  value   and   decrease   more   when  the   ProFund's   portfolio
assets  decrease  in  value  than  would   otherwise  be  the  case.   Moreover,
interest  costs on  borrowings  may  fluctuate  with  changing  market  rates of
interest  and may  partially  offset  or  exceed  the  returns  on the  borrowed
funds.   Under   adverse   conditions,    a   ProFund   might   have   to   sell
portfolio   securities   to  meet   interest   or   principal   payments   at  a
time  investment considerations would not favor such sales.

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

Lending of Portfolio Securities

Subject  to the  investment  restrictions  set forth  below,  each  ProFund  may
lend  portfolio  securities to brokers,  dealers,  and  financial  institutions,
provided  that  cash  equal  to at  least  100%  of  the  market  value  of  the
securities  loaned  is  deposited  by  the  borrower  with  the  ProFund  and is
maintained   each   business   day  in  a   segregated   account   pursuant   to
applicable  regulations.  While  such  securities  are  on  loan,  the  borrower
will pay the  lending  ProFund  any income  accruing  thereon,  and the  ProFund
may  invest  the  cash  collateral  in  portfolio  securities,  thereby  earning
additional  income.  A  ProFund  will not lend more than 33% of the value of the
ProFund's  total  assets,  except that the Money  Market  ProFund  will not lend
more  than  10% of the  value  of  the  Money  Market  ProFund's  total  assets.
Loans  would  be  subject  to  termination  by  the  lending   ProFund  on  four
business  days'  notice,  or by the  borrower  on  one  day's  notice.  Borrowed
securities  must be returned  when the loan is  terminated.  Any gain or loss in
the market price of the  borrowed  securities  which  occurs  during the term of
the loan  inures to the  lending  ProFund  and that  ProFund's  shareholders.  A
lending  ProFund may pay  reasonable  finders,  borrowers,  administrative,  and
custodial Trustees in connection with a loan.

When-Issued and Delayed-Delivery Securities

Each  ProFund,   from  time  to  time,  in  the  ordinary  course  of  business,
may  purchase  securities  on a  when-issued  or  delayed-delivery  basis (i.e.,
delivery  and  payment  can take  place  between a month and 120 days  after the
date of the  transaction).  These  securities are subject to market  fluctuation
and no  interest  accrues to the  purchaser  during this  period.  At the time a
ProFund  makes  the  commitment  to  purchase  securities  on a  when-issued  or
delayed-delivery   basis,   the  ProFund   will  record  the   transaction   and
thereafter  reflect  the value of the  securities,  each day,  of such  security
in   determining   the   ProFund's   net  asset   value.   A  ProFund  will  not
purchase   securities   on  a   when-issued   or   delayed-delivery   basis  if,
as a result,  more than 15% (10% with  respect to the Money  Market  ProFund) of
the  ProFund's  net assets  would be so  invested.  At the time of  delivery  of
the  securities,  the  value  of the  securities  may be more or less  than  the
purchase price.

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

Investments in Other Investment Companies

The  ProFunds   (other  than  the  Money  Market  ProFund)  may  invest  in  the
securities   of  other   investment   companies  to  the  extent  that  such  an
investment  would  be  consistent  with the  requirements  of  Section  12(d)(1)
of the 1940 Act. If a ProFund  invests  in,  and,  thus,  is a  shareholder  of,
another  investment   company,   the  ProFund's   shareholders  will  indirectly
bear  the  ProFund's  proportionate  share of the  Trustees  and  expenses  paid
by  such   other   investment   company,   including   advisory   Trustees,   in
addition  to both the  management  fees  payable  directly by the ProFund to the
ProFund's  own  investment  adviser  and the  other  expenses  that the  ProFund
bears  directly in connection  with the ProFund's own operations.

Illiquid Securities

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

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

Portfolio Turnover
   

As discussed in the Prospectus,  the ProFunds anticipate that its investors,  as
part  of  a  market-timing  or  asset  allocation   investment  strategy,   will
frequently  exchange  shares  of the  ProFunds  for  shares  in  other  ProFunds
pursuant to the exchange  policy of as well as  frequently  redeem shares of the
ProFunds (see  "Exchanges"  in the  Prospectus).  The nature of the ProFunds has
caused the  ProFunds  to  experience  substantial  portfolio  turnover.  Because
each  ProFund's  portfolio  turnover  rate to a great  extent will depend on the
purchase,  redemption,  and exchange activity of the ProFund's investors,  it is
very  difficult to estimate what the ProFund's  actual  turnover rate will be in
the  future.  However,  expects  that the  portfolio  turnover  experienced  the
ProFunds will continue to be substantial.

"Portfolio  Turnover  Rate" is  defined  under the rules of the  Securities  and
Exchange  Commission  as the value of the  securities  purchased  or  securities
sold,  excluding all securities  whose  maturities at time of  acquisition  were
one  year or less,  divided  by the  average  monthly  value of such  securities
owned during the year.  Based on this  definition,  instruments  with  remaining
maturities  of  less  than  one  year  are  excluded  from  the  calculation  of
portfolio   turnover  rate.   Instruments   excluded  from  the  calculation  of
portfolio  turnover  generally  would  include the futures  contracts and option
contracts in which the ProFunds  invest since such  contracts  generally  have a
remaining  maturity  of less than one year.  All  instruments  held by a ProFund
during a specified  period may have a  remaining  maturity of less than one year
in  which  case  the  portfolio  turnover  rate  for  that  period,   under  the
definition,  would  be  equal  to  zero.  However,  because  of  the  nature  of
ProFunds as described above,  the actual portfolio  turnover of the ProFunds has
been and it is anticipated  that their actual  portfolio  turnover in the future
will be unusually high.
    


                            INVESTMENT RESTRICTIONS

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

A ProFund may not:

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

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

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

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

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

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

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

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

                      PORTFOLIO TRANSACTIONS AND BROKERAGE

Subject  to  the  general   supervision   by  the   Trustees,   the  Advisor  is
responsible  for decisions to buy and sell  securities for each of the ProFunds,
the  selection  of  brokers  and  dealers to effect  the  transactions,  and the
negotiation  of  brokerage  commissions,  if any.  The Advisor  expects that the
ProFunds may execute brokerage or other agency  transactions  through registered
broker-dealers,  for  a  commission,  in  conformity  with  the  1940  Act,  the
Securities  Exchange  Act of 1934,  as  amended,  and the rules and  regulations
thereunder.

The  Advisor  may  serve  as an  investment  manager  to a  number  of  clients,
including  other  investment  companies.  It is the  practice  of the Advisor to
cause  purchase and sale  transactions  to be  allocated  among the ProFunds and
others  whose  assets  the  Advisor  manages  in  such  manner  as  the  Advisor
deems  equitable.  The main  factors  considered  by the  Advisor in making such
allocations  among  the  ProFunds  and  other  client  accounts  of the  Advisor
are the  respective  investment  objectives,  the  relative  size  of  portfolio
holdings  of the  same  or  comparable  securities,  the  availability  of  cash
for  investment,  the size of investment  commitments  generally  held,  and the
opinions of the  person(s)  responsible,  if any, for  managing  the  portfolios
of the ProFunds and the other client accounts.

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

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

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

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

                             MANAGEMENT OF PROFUNDS

Trustees are  responsible  for the general  supervision  of ProFund's  business.
The   day-to-day   operations   of   ProFunds   are  the   responsibilities   of
ProFunds'  officers.  The names and  addresses  (and ages) of  Trustees  and the
officers of and the officers of the  Advisor,  together  within  formation as to
their  principal  business  occupations  during  the past  five  years,  are set
forth below.  Trustees and expenses  for  non-interested  Trustees  will be paid
by _______________.

Trustees

[To be added by pre-effective amendment]

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

Under  an  investment  advisory  agreement  between  ProFunds  and the  Advisor,
dated  _____,  1997,  each  ProFund  other  than the Money  Market  ProFund  and
the  Money  Market  ProFund  pays  the  Advisor  a fee  at an  annualized  rate,
based on its average  daily net assets of 0.70%.  and 0.45%,  respectively.  The
Advisor  manages  the  investment  and the  reinvestment  of the  assets of each
of  the  Funds,  in  accordance  with  the  investment   objectives,   policies,
and  limitations  of  the  ProFund,  subject  to  the  general  supervision  and
control  of  Trustees  and the  officers  of  ProFunds.  The  Advisor  bears all
costs  associated  with providing  these advisory  services.  The Advisor,  from
its own  resources,  including  profits from  advisory  Trustees  received  from
the Funds,  provided such Trustees are legitimate  and not  excessive,  also may
make  payments to  broker-dealers  and other  financial  institutions  for their
expenses  in  connection  with  the  distribution  of  ProFunds'   shares,   and
otherwise  currently  pays all  distribution  costs for ProFunds' shares.

Servicer

General  administrative,  shareholder,  dividend  disbursement,  transfer agent,
and  registrar   services  are  provided  to  ProFunds  by   ___________________
[address] (the  "Servicer"),  subject to the general  supervision and control of
Trustees  and  the  officers  of  ProFunds,  pursuant  to  a  service  agreement
between  ProFunds  and the  Servicer,  date  dated  ________,  1997.  Under this
service   agreement,   the  Funds   each  pay  the   Servicer  a  fee  equal  to
_________________.

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

Costs and Expenses

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

Principal Holders of the Trust

[To be added by pre-effective amendment.]

PERFORMANCE INFORMATION

Total Return Calculations

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

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

Average  annual  total  return  quotations  for  periods  of two or  more  years
are computed by finding the average  annual  compounded  rate of return over the
period  that would equal the initial  amount  invested to the ending  redeemable
value.  A  more-detailed  description  of the  method by which the total  return
of a  ProFund  is  calculated  is  contained  in  the  Statement  of  Additional
Information  under "Calculation of Return Quotations."

Yield Calculations

From  time  to  time,   the  Money  Market   ProFund   advertises   its  "yield"
and  "effective  yield."  Both yield  figures are based on  historical  earnings
and  are not  intended  to  indicate  future  performance.  The  "yield"  of the
Money  Market  ProFund  refers  to the  income  generated  by an  investment  in
the  Money  Market   ProFund  over  a  seven-day   period   (which  period  will
be stated in the  advertisement).  This  income is then  "annualized."  That is,
the amount of income  generated  by the  investment  during that week is assumed
to be  generated  each week over a 52-week  period and is shown as a  percentage
of  the  investment.   The  "effective  yield"  is  calculated  similarly,  but,
when  annualized,  the  income  earned  by an  investment  in the  Money  Market
ProFund is assumed to be  reinvested.  The  "effective  yield"  will be slightly
higher  than the  "yield"  because  of the  compounding  effect of this  assumed
reinvestment.

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

Comparisons of Investment Performance
   

In  conjunction  with  performance  reports,   promotional  literature,   and/or
analyses of shareholder  service for a ProFund,  comparisons of the  performance
information   of  the  ProFund  for  a  given  period  to  the   performance  of
recognized,  unmanaged  indexes  for the same period may be made.  Such  indexes
include,  but are  not  limited  to,  ones  provided  by Dow  Jones  &  Company,
Standard  & Poor's  Corporation,  Lipper  Analytical  Services,  Inc.,  Shearson
Lehman Brothers,  National  Association of Securities  Dealers,  Inc., The Frank
Russell  Company,  Value Line  Investment  Survey,  the American Stock Exchange,
the  Philadelphia   Stock  Exchange,   Morgan  Stanley  Capital   International,
Wilshire Associates,  the Financial Times-Stock  Exchange,  and the Nikkei Stock
Average  and  Deutcher   Aktienindex,   all  of  which  are   unmanaged   market
indicators.  Such  comparisons  can be a  useful  measure  of the  quality  of a
ProFund's investment  performance.  In particular,  performance  information for
the Bull  ProFund,  the  UltraBull  ProFund,  the Bear ProFund and the UltraBear
Fund may be compared to various unmanaged  indexes,  including,  but not limited
to,  the  S&P500  Index  or  the  Dow  Jones  Industrial  Average;   performance
information  for the OTC ProFund may be compared to various  unmanaged  indexes,
including, but not limited to its current benchmark, the NASDAQ 100 Index.

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

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

                              FINANCIAL STATEMENTS

[Seed capital financial statements to be added by pre-effective amendment.]

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

<PAGE>




































                                     PART C
<PAGE>

         PART C
         ------

         OTHER INFORMATION
         -----------------

ITEM 24.    Financial Statements and Exhibits
- ---------------------------------------------

List   all   financial   statements   and   exhibits   filed   as  part  of  the
Registration
Statement.

(a)   Financial Statements:

      In Part A:  None.

      In Part B:  None.

      In Part C:  None.

(b)   Exhibits

      (1) (a) Certificate of Trust of ProFunds (the "Registrant").  (1)
      (1) (b) Declaration of Trust of the Registrant.  (1)
      (2)     By-laws of Registrant. (2)
      (3)     Not Applicable.
      (4)     Not Applicable.
      (5)     Form of Investment Advisory Agreement. (2)
      (6)     Form of  Administrative Agreement. (2)
      (7)     Not  Applicable.  (2)
      (8)     Form of Custody  Agreement. (2)
      (9) (a) Form  of  Transfer  Agency Agreement. (2)
      (9) (b) Directors  and  Officers Liability Insurance and Comprehensive
              Blanket Bond Insurance Policy. (2)
      (10)    Opinion and Consent of  Counsel to the Registrant. (2)
      (11)    Not Applicable.
      (12)    Not Applicable.
      (13)    Not Applicable.
      (14)    Not Applicable.
      (15)    Not Applicable.
      (16)    Not Applicable.
- ------------------------
(1) Filed with initial registration statement;
(2) To be filed by amendment.

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

None.

ITEM 26.   Number of Holders of Securities
- ------------------------------------------

The following information is given as of the date indicated:

Title of Class:  Common  Stock,  no par value  Number  of Record  Holders  as of
______, 1997,
- -------------

To be filed by amendment.

ITEM 27.   Indemnification
- --------------------------

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

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

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

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

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

ITEM 28.   Business and Other Connections of Investment Advisory
- ----------------------------------------------------------------

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

ITEM 29.   Principal Underwriter
- --------------------------------

Not applicable.


ITEM 30.   Location of Accounts and Records
- -------------------------------------------

All  accounts,  books,  and records  required  to be  maintained  and  preserved
by Section 31(a) of the  Investment  Company Act of 1940, as amended,  and Rules
31a-1   and   31a-2   thereunder,   will   be   kept   by  the   Registrant   at
____________________ .  [To be added by pre-effective amendment.]

ITEM 31.   Management Services
- ------------------------------

There are no  management-related  service contracts not discussed in Parts A and
B.

ITEM 32.   Undertakings
- -----------------------

The   Registrant   agrees   to   file   a   post-effective   amendment,    using
financial   statements  which  need  not  be  certified,   within  four  to  six
months  from  the  effective  date  of  the   Registrant's   Securities  Act  of
1933  Registration Statement.
<PAGE>

                                   SIGNATURES

Pursuant  to  the   requirements   of  the   Securities  Act  of  1933  and  the
Investment   Company  Act  of  1940,   the   Registrant  has  duly  caused  this
pre-effective  amendment  no. 2 to  Registration  Statement  to be signed on its
behalf  by the  undersigned,  thereunto  duly  authorized,  in  Chevy  Chase  in
the State of Maryland on the 17th day of July, 1997.




                                    PROFUNDS


                              /s/ Michael L. Sapir
                              --------------------
                                Michael L. Sapir
                                   President

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

Signatures                          Title                        Date


/s/ Michael L. Sapir                Trustee, President           July 17, 1997
- ----------------------------------------------------------------
Michael L. Sapir


/s/ Louis Mayberg                   Trustee                      July 17, 1997
- -----------------------------------------------------------------
Louis Mayberg




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