PROFUNDS
497, 2000-02-14
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                                    PROFUNDS

                       STATEMENT OF ADDITIONAL INFORMATION

                        7900 WISCONSIN AVENUE, SUITE 300
                            BETHESDA, MARYLAND 20814

                       (888) 776-3637 RETAIL SHAREHOLDERS
                  (888) 776-5717 (FINANCIAL PROFESSIONALS ONLY)


     This  Statement of  Additional  Information  describes  the  UltraSmall-Cap
ProFund, the UltraMid-Cap ProFund, and the UltraJapan ProFund (collectively, the
"ProFunds").  Each  ProFund  offers two  classes of shares:  Service  Shares and
Investor  Shares.  The ProFunds may be used by  professional  money managers and
investors as part of an asset-allocation or market-timing investment strategy or
to  create  specified  investment  exposure  to  a  particular  segment  of  the
securities  market or to hedge an existing  investment  portfolio.  Each ProFund
seeks investment results that correspond each day to a specified benchmark.  The
ProFunds may be used  independently or in combination with each other as part of
an overall investment strategy.

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

     This Statement of Additional Information is not a prospectus.  It should be
read in conjunction  with the ProFunds'  Prospectus,  dated February 1, 2000, as
supplemented from time to time, which  incorporates this Statement of Additional
Information  by reference.  Words or phrases used in the Statement of Additional
Information  without definition have the same meaning as ascribed to them in the
Prospectus. A copy of the Prospectus is available,  without charge, upon request
to the address above or by telephoning at the telephone numbers above.

    The date of this Statement of Additional Information is February 1, 2000.


<PAGE>


                                TABLE OF CONTENTS

                                                                       PAGE
                                                                       ----
ProFunds................................................................ 3
Investment Policies and Techniques ..................................... 3
Investment Restrictions.................................................15
Determination of Net Asset Value........................................16
Portfolio Transactions and Brokerage....................................17
Management of ProFunds..................................................18
Costs and Expenses......................................................21
Organization and Description of Shares of Beneficial Interest...........21
Taxation ...............................................................22
Performance Information ................................................26
Financial Statements....................................................28
Appendix  Description of Securities Ratings ............................29



                                       2
<PAGE>

                                    PROFUNDS

     ProFunds (the "Trust") is an open-end management  investment  company,  and
currently  comprises  twenty-three  separate  series.  Three of the  series  are
discussed  herein.  All of  the  ProFunds  are  classified  as  non-diversified,
although they currently intend to operate in a diversified manner.

                       INVESTMENT POLICIES AND TECHNIQUES

GENERAL

     Reference  is made to the  Prospectus  for a discussion  of the  investment
objectives and policies of the ProFunds. In addition, set forth below is further
information  relating to the ProFunds.  The  discussion  below  supplements  and
should be read in conjunction with the Prospectus.

     Certain  investment  restrictions of a ProFund  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 Trust without
the approval of shareholders.

     A ProFund may consider changing its benchmark if, for example,  the current
benchmark  becomes  unavailable,  the ProFund believes 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  ProFunds   investment   results  to  correspond
sufficiently to its current benchmark.  If believed  appropriate,  a ProFund may
specify a benchmark for itself that is  "leveraged" or  proprietary.  Of course,
there can be no assurance that a ProFund will achieve its objective.

     Fundamental  securities  analysis is not generally used by ProFund Advisors
LLC (the "Advisor"),  the ProFunds'  investment adviser, in seeking to correlate
with the respective  benchmarks.  Rather, the Advisor primarily uses statistical
and  quantitative  analysis to determine  the  investments  a ProFund  makes and
techniques  it employs.  While the Advisor  attempts to minimize  any  "tracking
error"  (that  statistical  measure of the  difference  between  the  investment
results of a ProFunds and the  performance of its  benchmark),  certain  factors
will  tend to  cause a  ProFunds'  investment  results  to vary  from a  perfect
correlation to its benchmark.  The ProFunds,  however,  do not expect that their
total returns will vary adversely from their  respective  current  benchmarks by
more than ten percent over the course of a year. See "Special Considerations."

     It is the policy of the 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 investment strategies of the ProFunds discussed below, and as discussed
in the  Prospectus,  may be used by a ProFund if, in the opinion of the Advisor,
these strategies will be advantageous to the ProFunds.  The ProFunds are free to
reduce  or  eliminate  the  ProFunds'  activity  in any of those  areas  without
changing the ProFunds  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 its objective.


                                       3
<PAGE>

ULTRASMALL-CAP PROFUND

     The investment objective of the UltraSmall-Cap  ProFund is to provide daily
investment  results  that  correspond  to twice  (200%) the  performance  of the
Russell 2000(R) Index.

     The  UltraSmall-Cap  ProFund  does not intend to hold the 2,000  securities
included in the Russell  2000(R)  Index.  Instead,  the  UltraSmall-Cap  ProFund
intends to engage in  transactions in equities,  stock index futures  contracts,
options on stock index futures  contracts,  and options on securities  and stock
indexes.  As a nonfundamental  policy, the  UltraSmall-Cap  ProFund will invest,
under  normal  conditions,  at least 65% of its total  assets in the  securities
comprising  the  Russell  2000(R)  Index and  instruments  with  values that are
representative of such securities,  such as futures and option contracts on such
securities or such index.

     The Russell  2000(R) Index is a  capitalization-weighted  index of domestic
equities  traded on the NYSE, AMEX and NASDAQ.  The index  represents the bottom
2,000   companies   of  the  3,000  U.S.   stocks   with  the   largest   market
capitalizations.  As of June 30, 1999, the market  capitalization of these 2,000
companies  represented about 8% of the total market  capitalization of the 3,000
companies.  Companies whose stock comprises the Russell 2000(R) Index 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  smaller  companies  whose  stock
comprises  the Russell  2000(R) Index are the less certain  growth  prospects of
smaller firms, the lower degree of liquidity in the markets for such securities,
and the greater  sensitivity  of smaller  capitalization  companies  to changing
economic conditions than larger capitalization  companies.  Conversely,  because
many of these  securities may be overlooked by investors and  undervalued in the
marketplace, there is potential for significant capital appreciation.

ULTRAMID-CAP PROFUND

     The investment  objective of the  UltraMid-Cap  ProFund is to provide daily
investment  results that  correspond to twice (200%) the  performance of the S&P
MidCap 400 Index(R).

     The  UltraMid-Cap  ProFund  does  not  intend  to hold  the 400  securities
included in the S&P Mid-Cap 400  Index(R).  Instead,  the  UltraMid-Cap  ProFund
intends to engage in  transactions in equities,  stock index futures  contracts,
options on stock index futures  contracts,  and options on securities  and stock
indexes. As a nonfundamental policy, the UltraMid-Cap ProFund will invest, under
normal conditions, at least 65% of its total assets in the securities comprising
the S&P Mid-Cap 400 Index(R) and instruments with values that are representative
of such  securities,  such as futures and option contracts on such securities or
such index.

     The S&P MidCap 400 Index(R) is a widely used measure of medium  capitalized
U.S.  company stock  performance.  It consists of the common stocks of 400 major
corporations  selected  for their size and the  frequency  and ease which  their
stocks trade.  Standard & Poor's also attempts to assure that the Index reflects
the full range and diversity of the American  economy.  The securities of medium
capitalization  companies,  while typically not as volatile as the securities of
small capitalization  companies,  may be more volatile than securities of larger
or more well-known companies.

ULTRAJAPAN PROFUND

     The  investment  objective of the  UltraJapan  ProFund is to provide  daily
investment results that correspond to twice (200%) the performance of the Nikkei
225 Stock Average.



                                       4
<PAGE>

     The UltraJapan ProFund does not intend to hold the 225 securities  included
in the Nikkei 225 Stock  Average.  Instead,  the UltraJapan  ProFund  intends to
engage in transactions in equities,  stock index futures  contracts,  options on
stock index futures contracts, and options on securities and stock indexes. As a
nonfundamental   policy,  the  UltraJapan  ProFund  will  invest,  under  normal
conditions,  at least 65% of its total assets in the  securities  comprising the
Nikkei 225 Stock Average and instruments with values that are  representative of
such securities, such as futures and option contracts on such securities or such
index.

     The  Nikkei  225 Stock  Average  is a  price-weighted  index of 225  large,
actively traded Japanese stocks traded on the Tokyo Stock Exchange. The index is
computed and distributed by the Nihon Keizai Shimbun ("NKS")

     Investing in foreign companies or financial instruments by this ProFund may
involve risks not typically  associated  with investing in U.S.  companies.  The
value of securities  denominated  in foreign  currencies,  and of dividends from
such securities,  can change significantly when foreign currencies strengthen or
weaken relative to the U.S. Dollar.  Foreign  securities  markets generally have
less trading  volume and less liquidity  than U.S.  markets,  and prices in some
foreign markets can be extremely  volatile.  Many foreign countries lack uniform
accounting and disclosure  standards.  Because this ProFund will invest directly
or indirectly,  in foreign markets, it will be subject to certain of the market,
economic  and  political   risks  prevalent  in  these  foreign   markets,   and
particularly the Japanese markets.

     Changes in foreign  exchange  rates will affect the value of  securities of
financial  instruments  denominated or quoted in currencies  other than the U.S.
Dollar, and this ProFund will not engage in activities designed to hedge against
foreign currency exchange rate fluctuations. Foreign currency exchange rates may
fluctuate   significantly  over  short  periods  of  time.  They  generally  are
determined  by forces of supply and demand in the foreign  exchange  markets and
the relative merits of investments in different  countries,  actual or perceived
changes  in  interest  rates  and  other  complex  factors,   as  seen  from  an
international  perspective.   Currency  exchange  rates  also  can  be  affected
unpredictably  by  intervention  (or  failure to  intervene)  by U.S. or foreign
governments or central banks, by currency controls or by political  developments
in the U.S. or abroad.

     By investing in American  Depository  Receipts  ("ADRs) under normal market
conditions,  the UltraJapan ProFund may reduce some of the risks of investing in
foreign securities.  ADRs are denominated in the U.S. Dollar,  which reduces the
risk of currency  fluctuations during the settlement period for either purchases
or sales.  Further, the information available for ADRs is subject to accounting,
auditing and financial reporting standards of the domestic market or exchange on
which they are traded,  which  standards are more uniform and more exacting than
those to  which  many  foreign  issuers  may be  subject.  However,  ADRs do not
eliminate  all the risk  inherent  in  investing  in the  securities  of foreign
issuers.

FUTURES CONTRACTS AND RELATED OPTIONS

     The ProFunds may purchase or sell stock index futures contracts and options
thereon as a  substitute  for a  comparable  market  position in the  underlying
securities or to satisfy regulation  requirements.  A futures contract obligates
the seller to deliver  (and the  purchaser to take  delivery  of) the  specified
commodity on the expiration date of the contract. A stock index futures contract
obligates  the seller to deliver  (and the  purchaser to take) an amount of cash
equal to a specific dollar amount multiplied by the difference between the value
of a specific  stock index at the close of the last  trading day of the contract
and the  price at which the  agreement  is made.  No  physical  delivery  of the
underlying stocks in the index is made.

     When a ProFund  purchases a put or call option on a futures  contract,  the
ProFund pays a premium for the right to sell or purchase the underlying  futures
contract  for a  specified  price upon  exercise  at any time  during the option
period.  By writing  (selling)  a put or call  option on a futures  contract,  a
ProFund receives a premium in return for granting to the purchaser of the option
the right to sell to or buy from the ProFund the underlying futures contract for
a specified price upon exercise at any time during the option period.



                                       5
<PAGE>

     Whether a ProFund realizes a gain or loss from futures  activities  depends
generally  upon  movements  in  the  underlying  commodity.  The  extent  of the
ProFund's  loss from an unhedged  short  position in futures  contracts  or from
writing options on futures contracts is potentially unlimited.  The ProFunds may
engage in related closing purchase or sale  transactions with respect to options
on  futures  contracts  by  buying  an  option  of the same  series as an option
previously  written by a ProFund,  or selling an option of the same series as an
option  previously   purchased  by  a  ProFund.  The  ProFunds  will  engage  in
transactions in futures  contracts and related options that are traded on a U.S.
exchange  or board of trade or that have been  approved  for sale in the U.S. by
the Commodity Futures Trading Commission.

     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.

     The ProFunds may purchase and sell futures  contracts  and options  thereon
only  to  the  extent  that  such  activities   would  be  consistent  with  the
requirements  of Section 4.5 of the  regulations  promulgated  by the  Commodity
Futures Trading Commission (the "CFTC Regulations") under the Commodity Exchange
Act 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- bona fide
hedging  purposes to the extent that the  aggregate  initial  margins and option
premiums  required to  establish  such non- bona fide  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 futures contract. 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  futures  contract.  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.

     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


                                       6
<PAGE>

particular time. Many futures  exchanges and boards of trade limit the amount of
fluctuation  permitted in futures  contract  prices during a single trading day.
Once the daily limit has been reached in a particular contract, no trades may be
made that day at a price  beyond  that limit or  trading  may be  suspended  for
specified  periods  during the day.  Futures  contract  prices could move to the
limit for several  consecutive  trading days with little or no trading,  thereby
preventing prompt liquidation of futures positions and potentially  subjecting a
ProFund to  substantial  losses.  If trading  is not  possible,  or if a ProFund
determines  not to close a futures  position in  anticipation  of adverse  price
movements, the ProFund will be required to make daily cash payments of variation
margin. The risk that the ProFund will be unable to close out a futures position
will be minimized by entering into such transactions on a national exchange with
an active and liquid secondary market.

INDEX OPTIONS

     The  ProFunds may  purchase  and write  options on stock  indexes to create
investment  exposure  consistent with their investment  objectives,  to hedge or
limit the  exposure of their  positions  and to create  synthetic  money  market
positions. See "Taxation" herein.

     A stock index  fluctuates  with changes in the market  values of the stocks
included  in the index.  Options on stock  indexes  give the holder the right to
receive  an amount of cash upon  exercise  of the  option.  Receipt of this cash
amount  will  depend  upon the  closing  level of the stock index upon which the
option is based being  greater than (in the case of a call) or less than (in the
case of a put) the exercise price of the option. The amount of cash received, if
any,  will be the  difference  between  the  closing  price of the index and the
exercise price of the option,  multiplied by a specified  dollar  multiple.  The
writer (seller) of the option is obligated,  in return for the premiums received
from the  purchaser  of the  option,  to make  delivery  of this  amount  to the
purchaser. All settlements of index options transactions are in cash.

     Index  options  are subject to  substantial  risks,  including  the risk of
imperfect  correlation  between the option price and the value of the underlying
securities  composing the stock index selected and the risk that there might not
be a liquid  secondary  market  for the  option.  Because  the value of an index
option depends upon movements in the level of the index rather than the price of
a  particular  stock,  whether  a ProFund  will  realize a gain or loss from the
purchase or writing  (sale) of options on an index depends upon movements in the
level of stock prices in the stock market  generally  or, in the case of certain
indexes,  in an industry or market  segment,  rather than upon  movements in the
price of a particular stock.  Whether a ProFund will realize a profit or loss by
the use of options on stock indexes will depend on movements in the direction of
the stock market generally or of a particular  industry or market segment.  This
requires  different  skills and  techniques  than are  required  for  predicting
changes  in the price of  individual  stocks.  A ProFund  will not enter into an
option  position  that exposes the ProFund to an  obligation  to another  party,
unless the ProFund either (i) owns an offsetting position in securities or other
options  and/or  (ii)  maintains  with  the  ProFund's   custodian  bank  liquid
instruments  that,  when added to the  premiums  deposited  with  respect to the
option,  are  equal  to the  market  value of the  underlying  stock  index  not
otherwise covered.

     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  their  investment  objectives.
Options on indexes are  settled in cash,  not by  delivery  of  securities.  The
exercising holder of an index option receives, instead of a security, cash equal
to the  difference  between the closing  price of the  securities  index and the
exercise price of the option.

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


                                       7
<PAGE>

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

OPTIONS ON SECURITIES

     Each ProFund may buy and write (sell) options on securities for the purpose
of realizing its investment  objectives.  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 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 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 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 is required  to deposit in escrow the  underlying  security or other
assets in accordance  with the rules of the Options  Clearing  Corporation  (the
"OCC"), an institution created to interpose itself between buyers and sellers of
options.  The OCC assumes the other side of every purchase and sale  transaction
on an exchange  and, by doing so, gives its guarantee to the  transaction.  When
writing call options on  securities,  a ProFund may cover its position by owning
the  underlying  security  on which the option is  written.  Alternatively,  the
ProFund  may  cover its  position  by  owning a call  option  on the  underlying
security,  on a share for share  basis,  which is  deliverable  under the option
contract at a price no higher than the exercise price of the call option written
by the ProFund or, if higher,  by owning  such call  option and  depositing  and
maintaining in a segregated account cash or liquid instruments equal in value to
the difference between the two exercise prices. In addition, a ProFund may cover
its position by  depositing  and  maintaining  in a  segregated  account cash or
liquid  instruments  equal  in value to the  exercise  price of the call  option
written by the  ProFund.  When a ProFund  writes a put option,  the ProFund will
have and maintain on deposit with its custodian bank cash or liquid  instruments
having a value equal to the exercise value of the option.  The principal  reason
for a ProFund to write call  options on stocks held by the ProFund is to attempt
to  realize,  through the receipt of  premiums,  a greater  return than would be
realized on the underlying securities alone.

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

                                       8
<PAGE>

     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.  Reasons for the absence of a
liquid secondary  market on an exchange include the following:  (i) there may be
insufficient  trading  interest in certain  options;  (ii)  restrictions  may be
imposed by an exchange on opening or closing transactions or both; (iii) trading
halts,  suspensions  or  other  restrictions  may be  imposed  with  respect  to
particular   classes  or  series  of  options;   (iv)   unusual  or   unforeseen
circumstances may interrupt normal operations on an exchange; (v) the facilities
of an exchange  or the OCC may not at all times be  adequate  to handle  current
trading  volume;  or (vi) one or more  exchanges  could,  for  economic or other
reasons,  decide or be compelled at some future date to discontinue  the trading
of options (or a  particular  class or series of options)  would cease to exist,
although outstanding options on that exchange that had been issued by the OCC as
a result  of  trades  on that  exchange  would  continue  to be  exercisable  in
accordance with their terms.

SWAP AGREEMENTS

     The ProFunds may enter into equity index or interest  rate swap  agreements
for purposes of  attempting to gain exposure to the stocks making up an index of
securities in a market without actually  purchasing those stocks,  or to hedge a
position.  Swap  agreements  are two-party  contracts  entered into primarily by
institutional investors for periods ranging from a day to more than one year. In
a standard  "swap"  transaction,  two parties  agree to exchange the returns (or
differentials in rates of return) earned or realized on particular predetermined
investments  or  instruments.  The gross  returns to be  exchanged  or "swapped"
between the parties are  calculated  with respect to a "notional  amount," i.e.,
the return on or increase in value of a particular  dollar amount  invested in a
"basket" of securities representing a particular index. Forms of swap agreements
include  interest  rate caps,  under which,  in return for a premium,  one party
agrees to make payments to the other to the extent that interest  rates exceed a
specified  rate, or "cap";  interest rate floors,  under which,  in return for a
premium,  one party  agrees to make  payments  to the other to the  extent  that
interest  rates fall below a specified  level,  or "floor";  and  interest  rate
collars,  under which a party sells a cap and purchases a floor or vice versa in
an attempt to protect itself against  interest rate  movements  exceeding  given
minimum or maximum levels.

     Most swap agreements entered into by the ProFunds calculate the obligations
of the parties to the  agreement  on a "net  basis."  Consequently,  a ProFund's
current  obligations  (or rights) under a swap agreement will generally be equal
only to the net amount to be paid or received  under the agreement  based on the
relative  values of the positions  held by each party to the agreement (the "net
amount").

     A ProFund's  current  obligations  under a swap  agreement  will be accrued
daily  (offset  against any amounts  owing to the  ProFund)  and any accrued but
unpaid net amounts owed to a swap  counterparty  will be covered by  segregating
assets  determined to be liquid.  Obligations  under swap  agreements so covered
will not be  construed  to be "senior  securities"  for  purposes of a ProFund's
investment restriction concerning senior securities.  Because they are two party
contracts  and  because  they may have terms of greater  than seven  days,  swap
agreements may be considered to be illiquid for the ProFund illiquid  investment
limitations. A ProFund will not enter into any swap agreement unless the Advisor
believes  that the other party to the  transaction  is  creditworthy.  A ProFund
bears  the  risk of loss of the  amount  expected  to be  received  under a swap
agreement  in the  event  of  the  default  or  bankruptcy  of a swap  agreement
counterparty.

     Each ProFund may enter into swap  agreements to invest in a market  without
owning or taking physical custody of securities in circumstances in which direct
investment is restricted  for legal reasons or is otherwise  impracticable.  The
counterparty to any swap agreement will typically be a bank,  investment banking
firm or broker/dealer.  The counterparty will generally agree to pay the ProFund
the amount,  if any, by which the notional  amount of the swap  agreement  would
have increased in value had it been invested in the particular stocks,  plus the
dividends that would have been received on those stocks.  The ProFund will agree
to pay to the counterparty a floating rate of interest on the notional amount of
the swap

                                       9
<PAGE>

agreement  plus the amount,  if any,  by which the  notional  amount  would have
decreased in value had it been invested in such stocks. Therefore, the return to
the  ProFund on any swap  agreement  should be the gain or loss on the  notional
amount plus dividends on the stocks less the interest paid by the ProFund on the
notional amount.

     Swap agreements  typically are settled on a net basis, which means that the
two payment streams are netted out, with the ProFund receiving or paying, as the
case may be, only the net amount of the two  payments.  Payments  may be made at
the  conclusion  of a swap  agreement  or  periodically  during  its term.  Swap
agreements do not involve the delivery of securities or other underlying assets.
Accordingly,  the risk of loss with respect to swap agreements is limited to the
net amount of payments that a ProFund is contractually obligated to make. If the
other party to a swap agreement  defaults,  a ProFund's risk of loss consists of
the net amount of  payments  that such  ProFund  is  contractually  entitled  to
receive,  if  any.  The  net  amount  of the  excess,  if  any,  of a  ProFund's
obligations  over its  entitlements  with  respect to each  equity  swap will be
accrued  on a daily  basis and an amount  of cash or  liquid  assets,  having an
aggregate  net  asset  value  at  least  equal to such  accrued  excess  will be
maintained in a segregated account by a ProFund's  custodian.  Inasmuch as these
transactions  are entered into for hedging  purposes or are offset by segregated
cash of liquid  assets,  as permitted by applicable  law, the ProFunds and their
Advisor believe that  transactions do not constitute senior securities under the
1940 Act and,  accordingly,  will not treat them as being subject to a ProFund's
borrowing restrictions.

     The swap market has grown substantially in recent years with a large number
of banks and  investment  banking firms acting both as principals  and as agents
utilizing  standardized  swap  documentation.  As a result,  the swap market has
become  relatively  liquid in  comparison  with the  markets  for other  similar
instruments which are traded in the over-the-counter  market. The Advisor, under
the  supervision of the Board of Trustees,  are  responsible for determining and
monitoring the liquidity of the ProFund transactions in swap agreements.

     The use of equity swaps is a highly  specialized  activity  which  involves
investment  techniques and risks  different from those  associated with ordinary
portfolio securities transactions.

AMERICAN DEPOSITORY RECEIPTS

     For many foreign securities, U.S. Dollar denominated ADRs, which are traded
in the United  States on exchanges or  over-the-counter,  are issued by domestic
banks.  ADRs  represent  the right to  receive  securities  of  foreign  issuers
deposited in a domestic bank or a correspondent  bank. ADRs do not eliminate all
the risk inherent in investing in the securities of foreign issuers. However, by
investing in ADRs rather than directly in foreign issuers' stock, the UltraJapan
ProFund  can avoid  currency  risks  during  the  settlement  period  for either
purchase or sales.

     In general,  there is a large,  liquid market in the United States for many
ADRs. The information available for ADRs is subject to the accounting,  auditing
and financial  reporting  standards of the domestic  market or exchange on which
they are traded,  which  standards are more uniform and more exacting than those
to which many foreign  issuers may be subject.  Certain  ADRs,  typically  those
denominated  as  unsponsored,  require the  holders  thereof to bear most of the
costs of such  facilities,  while issuers of sponsored  facilities  normally pay
more of the costs thereof.  The depository of an unsponsored facility frequently
is under no obligation to distribute  shareholder  communications  received from
the issuer of the  deposited  securities or to pass through the voting rights to
facility  holders  with  respect  to  the  deposited  securities,   whereas  the
depository   of  a  sponsored   facility   typically   distributes   shareholder
communications and passes through the voting rights.

     The UltraJapan  ProFund may invest in both sponsored and unsponsored  ADRs.
Unsponsored   ADRs  programs  are  organized   independently   and  without  the
cooperation of the issuer of the  underlying  securities.  As result,  available
information concerning the issuers may not be as current for sponsored ADRs, and
the prices of unsponsored  depository receipts may be more volatile than if such
instruments were sponsored by the issuer.



                                       10
<PAGE>

U.S. GOVERNMENT SECURITIES

     Each ProFund also may invest in U.S.  government  securities  in pursuit of
its  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.

     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.

REPURCHASE AGREEMENTS

     Each of the ProFunds may enter into  repurchase  agreements  with financial
institutions.  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.
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
the repurchase  agreement.  In the event of a default or bankruptcy by a selling
financial  institution,  a ProFund will seek to liquidate such collateral  which
could involve  certain costs or delays and, to the extent that proceeds from any
sale  upon a  default  of the  obligation  to  repurchase  were  less  than  the
repurchase price, the ProFund could suffer a loss. 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

                                       11
<PAGE>

not to invest in repurchase  agreements  that do not mature within seven days if
any such investment,  together with any other liquid assets held by the ProFund,
amounts to more than 15% of its total net assets. The investments of each of the
ProFunds in repurchase  agreements at times may be substantial when, in the view
of the Advisor,  liquidity,  investment,  regulatory, or other considerations so
warrant.

CASH RESERVES

     To  seek  its  investment  objective,  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.

REVERSE REPURCHASE AGREEMENTS

     The  ProFunds  may use  reverse  repurchase  agreements  as  part of  their
investment strategies.  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 it will be to the ProFund's advantage to
do so. The ProFund will  establish a segregated  account with its 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 may borrow money for cash  management  purposes or  investment
purposes.   Each  of  the  ProFunds  may  also  enter  into  reverse  repurchase
agreements,  which  may  be  viewed  as a  form  of  borrowing,  with  financial
institutions.   However,  to  the  extent  a  ProFund  "covers"  its  repurchase
obligations  as  described  above  in  "Reverse  Repurchase   Agreements,"  such
agreement will not be considered to be a "senior security" and, therefore,  will
not be subject to the 300% asset coverage  requirement  otherwise  applicable to
borrowings by the ProFunds.  Borrowing  for  investment is known as  leveraging.
Leveraging  investments,  by purchasing  securities  with borrowed  money,  is a
speculative  technique  which  increases  investment  risk,  but also  increases
investment  opportunity.  Since  substantially  all of a  ProFund's  assets will
fluctuate in value, whereas the interest obligations on borrowings may be fixed,
the net  asset  value  per  share of the  ProFund  will  increase  more when the
ProFund's  portfolio  assets  increase  in  value  and  decrease  more  when the
ProFund's  portfolio  assets decrease in value than would otherwise be the case.
Moreover,  interest costs on borrowings may fluctuate with changing market rates
of  interest  and may  partially  offset or exceed the  returns on the  borrowed
funds.  Under  adverse  conditions,  a  ProFund  might  have to  sell  portfolio
securities  to meet  interest or  principal  payments at a time when  investment
considerations would not favor such sales.

     As  required  by the 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


                                       12
<PAGE>

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

     Each of the ProFunds may lend its portfolio securities to brokers, dealers,
and  financial  institutions,  provided  that cash equal to at least 100% of the
market value of the  securities  loaned is  deposited  by the borrower  with the
ProFund 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 1/3% of the  value of the  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.  There  may be risks  of  delay  in  receiving
additional  collateral  or risks of delay in recovery of the  securities or even
loss of rights in the securities lent should the borrower of the securities fail
financially.   A  lending  ProFund  may  pay  reasonable   finders,   borrowers,
administrative, and custodial fees 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, in determining the ProFund's net asset value. Each ProFund
will not purchase securities on a when-issued or delayed-delivery basis if, as a
result,  more than 15% of the ProFund's net assets would be so invested.  At the
time of delivery of the  securities,  the value of the securities may be more or
less than the purchase price.

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

INVESTMENTS IN OTHER INVESTMENT COMPANIES

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

ILLIQUID SECURITIES

     While none of the ProFunds  anticipates  doing so, each of the ProFunds may
purchase  illiquid  securities,   including  securities  that  are  not  readily
marketable and  securities  that are not  registered  ("restricted  securities")
under the Securities Act of 1933, as amended (the "1933 Act"),  but which can be
sold to  qualified  institutional  buyers  under  Rule 144A of the 1933  Act.  A
ProFund  will not invest more than 15% 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


                                       13
<PAGE>

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
investments  in  illiquid  securities  may have an  adverse  impact on net asset
value.

     Institutional  markets for restricted securities have developed as a result
of the  promulgation  of Rule 144A  under the 1933 Act,  which  provides  a safe
harbor  from  1933  Act  registration   requirements  for  qualifying  sales  to
institutional  investors.  When  Rule  144A  restricted  securities  present  an
attractive  investment  opportunity  and otherwise  meet selection  criteria,  a
ProFund may make such  investments.  Whether or not such securities are illiquid
depends on the market that exists for the  particular  security.  The Commission
staff  has  taken  the  position  that the  liquidity  of Rule  144A  restricted
securities  is a question  of fact for a board of trustees  to  determine,  such
determination  to be based on a consideration of the  readily-available  trading
markets  and the  review of any  contractual  restrictions.  The staff  also has
acknowledged  that, while a board of trustees  retains ultimate  responsibility,
trustees  may  delegate  this  function to an  investment  adviser.  Trustees of
ProFunds have delegated this  responsibility  for  determining  the liquidity of
Rule 144A  restricted  securities  which may be  invested in by a ProFund to the
Advisor. 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

     The  nature  of  the  ProFunds   will  cause  the  ProFunds  to  experience
substantial  portfolio  turnover.  A higher portfolio turnover rate would likely
involve  correspondingly greater brokerage commissions and transaction and other
expenses  which  would  be borne  by the  ProFunds.  In  addition,  a  ProFund's
portfolio  turnover  level may  adversely  affect the  ability of the ProFund to
achieve its investment objective. Because each ProFund's portfolio turnover rate
to a great extent will depend on the purchase, redemption, and exchange activity
of the  ProFund's  investors,  it is  difficult to estimate  what the  ProFund's
actual turnover rate will be in the future. "Portfolio Turnover Rate" is defined
under the rules of the  Commission as the value of the  securities  purchased or
securities   sold,   excluding  all  securities  whose  maturities  at  time  of
acquisition were one year or less,  divided by the average monthly value of such
securities  owned during the year.  Based on this  definition,  instruments with
remaining  maturities of less than one year are excluded from the calculation of
portfolio turnover rate.  Instruments excluded from the calculation of portfolio
turnover  generally would include the futures  contracts and option contracts in
which the  ProFunds  invest  since such  contracts  generally  have a  remaining
maturity  of less than one  year.  Pursuant  to the  formula  prescribed  by the
Commission,  the portfolio  turnover rate for each ProFund is calculated without
regard  to  instruments,  including  options  and  futures  contracts,  having a
maturity of less than one year.  Each ProFund  expects to typically hold most of
its investments in short-term options and futures contracts,  which,  therefore,
are excluded for purposes of computing portfolio turnover.  Therefore,  based on
the Commission's  portfolio  turnover  formula,  the ProFunds expect a portfolio
turnover rate of approximately 0%.

SPECIAL CONSIDERATIONS

     To the extent  discussed above and in the Prospectus,  the ProFunds present
certain risks, some of which are further described below.

                                       14
<PAGE>

     TRACKING ERROR.  While the ProFunds do not expect that their returns over a
year will deviate  adversely from their  respective  benchmarks by more than ten
percent,  several factors may affect their ability to achieve this  correlation.
Among these factors are: (1) ProFund expenses, including brokerage (which may be
increased by high portfolio turnover) and the cost of the investment  techniques
employed by the ProFunds;  (2) less than all of the  securities in the benchmark
being held by a ProFund and securities not included in the benchmark  being held
by  a  ProFund;  (3)  an  imperfect   correlation  between  the  performance  of
instruments held by a ProFund,  such as futures  contracts and options,  and the
performance of the underlying securities in the cash market; (4) bid-ask spreads
(the  effect of which may be  increased  by  portfolio  turnover);  (5)  holding
instruments  traded in a market  that has become  illiquid or  disrupted;  (6) a
ProFund  share  prices  being  rounded to the nearest  cent;  (7) changes to the
benchmark index that are not disseminated in advance;  (8) the need to conform a
ProFund's portfolio holdings to comply with investment  restrictions or policies
or regulatory or tax law requirements,  and (9) early and unanticipated closings
of the  markets  on which the  holdings  of a ProFund  trade,  resulting  in the
inability of the ProFund to execute  intended  portfolio  transactions.  While a
close  correlation of any ProFund to its benchmark may be achieved on any single
trading day, over time the cumulative percentage increase or decrease in the net
asset  value of the  shares  of a ProFund  may  diverge  significantly  from the
cumulative percentage decrease or increase in the benchmark due to a compounding
effect.

     LEVERAGE.  Each ProFund intends to use leveraged  investment  techniques in
pursuing their investment objectives. Utilization of leveraging involves special
risks and should be considered to be speculative. Leverage exists when a ProFund
achieves  the right to a return on a capital  base that  exceeds  the amount the
ProFund has  invested.  Leverage  creates  the  potential  for greater  gains to
shareholders of these ProFund during favorable market conditions and the risk of
magnified losses during adverse market conditions.  Leverage should cause higher
volatility  of the net asset  values of these  ProFund's  shares.  Leverage  may
involve the creation of a liability  that does not entail any interest  costs or
the creation of a liability  that  requires  the ProFund to pay  interest  which
would  decrease the ProFund's  total return to  shareholders.  If these ProFunds
achieve  their  investment   objectives,   during  adverse  market   conditions,
shareholders  should  experience a loss of  approximately  twice the amount they
would have incurred had these ProFunds not been leveraged.

     NON-DIVERSIFIED  STATUS. Each ProFund is a  "non-diversified"  series. Each
ProFund is considered  "non-diversified" because a relatively high percentage of
the ProFund's  assets may be invested in the  securities of a limited  number of
issuers,  primarily  within the same economic sector.  That ProFund's  portfolio
securities,   therefore,  may  be  more  susceptible  to  any  single  economic,
political,  or regulatory  occurrence  than the  portfolio  securities of a more
diversified    investment    company.   A   ProFund's    classification   as   a
"non-diversified"  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.  Each  ProFund,  however,  intends  to seek to  qualify  as a
"regulated  investment company" for purposes of the Internal Revenue Code, which
imposes diversification  requirements on these ProFund that are less restrictive
than the requirements applicable to the "diversified" investment companies under
the 1940 Act.

                             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 a 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:

                                       15
<PAGE>

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  or
repurchase agreements with respect thereto).

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

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

                        DETERMINATION OF NET ASSET VALUE

     The net asset values of the shares of the ProFunds are determined as of the
close of business of the NYSE  (ordinarily,  4:00 p.m. Eastern Time) on each day
the NYSE and the Chicago Mercantile Exchange ("CME") are open for business.

     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.

     The net asset  value of  shares  of a  ProFund  serves as the basis for the
purchase and redemption  price of each class of shares.  The net asset value per
share of a ProFund is  calculated  by dividing the market value of the ProFund's
assets,  less all  liabilities  attributed  to the  ProFund,  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 the Trust
or by the Advisor using methods  established  or ratified by the Trustees of the
Trust.

                                       16
<PAGE>

     The  securities in the portfolio of a ProFund,  except as otherwise  noted,
that are  listed or traded on a stock  exchange,  are valued on the basis of the
last sale on that day or, lacking any sales, at a price that is the mean between
the  closing  bid and asked  prices.  Other  securities  that are  traded on the
over-the-counter  markets are priced using NASDAQ, which provides information on
bid and asked prices quoted by major dealers in such stocks.  Bonds,  other than
convertible  bonds, are valued using a third-party  pricing system.  Convertible
bonds are valued  using this  pricing  system only on days when there is no sale
reported.  Short-term  debt securities are valued using this pricing system only
on days when there is no sale reported. Short-term debt securities are valued at
amortized cost, which approximates  market value. When market quotations are not
readily  available,  securities  and other  assets  are  valued at fair value as
determined in good faith under  procedures  established by and under the general
supervision and responsibility of the ProFunds' Board of Trustees.

     Futures  contracts  maintained  by  ProFunds  are valued at their last sale
price prior to the valuation time.  Options on futures  contracts  generally are
valued  at fair  value as  determined  with  reference  to  established  futures
exchanges.  Options on securities and indices  purchased by a ProFund are valued
at their last sale price prior to the  valuation  time or at fair value.  In the
event of a trading halt that closes the NYSE early,  futures  contracts  will be
valued on the  basis of  settlement  prices on  futures  exchanges,  options  on
futures  will be valued  at fair  value as  determined  with  reference  to such
settlement prices, and options on securities and indices will be valued at their
last sale price prior to the trading halt or at fair value.

     In the event a trading  halt closes a futures  exchange for a given day and
that  closure  occurs  prior  to the  close  of the  NYSE on that  day,  futures
positions  traded on such  exchange  and held by a ProFund will be valued on the
basis of the day's settlement prices on the futures exchange or fair value.

                      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


                                       17
<PAGE>

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  degrees and would  generally  reduce the amount of research or services
otherwise  performed by the Advisor and thereby  reduce the Advisor's  expenses,
this  information  and  these  services  are of  indeterminable  value  and  the
management  fee paid to the  Advisor is not  reduced  by any amount  that may be
attributable to the value of such information and services.

                             MANAGEMENT OF PROFUNDS

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

TRUSTEES AND OFFICERS OF PROFUNDS

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

     LOUIS M.  MAYBERG*  (birthdate:  August 9,  1962).  Currently:  Trustee and
Secretary of ProFunds;  President,  the Advisor.  Formerly:  President,  Potomac
Securities,  Inc.;  Managing  Director,  National  Capital  Companies,  LLC. His
address is 7900 Wisconsin Avenue, Suite 300, Bethesda, Maryland 20814.

     GARY TENKMAN  (birthdate:  September  16,  1970).  Currently:  Treasurer of
ProFunds; Vice President, BISYS Fund Services.  Formerly: Audit Manager, Ernst &
Young. His address is 3435 Stelzer Road, Columbus, Ohio 43219.

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

                                       18
<PAGE>

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

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

PROFUNDS TRUSTEE COMPENSATION TABLE

            The  following  table reflect fees paid to the Trustees for the year
ended December 31, 1998.


NAME OF
PERSON: POSITION                                                  COMPENSATION
- ----------------                                                  ------------

Michael L. Sapir, Chairman and Chief Executive Officer            None

Louis M. Mayberg, Trustee, President, Secretary                   None

Russell S. Reynolds, III, Trustee                                 $5,000

Michael C. Wachs, Trustee                                         $3,750


PROFUND ADVISORS LLC

     Under an investment  advisory  agreement  between the Trust and the Advisor
with respect to the ProFunds, dated January 24, 2000, the UltraSmall-Cap ProFund
and UltraMid-Cap  ProFund pays the Advisor a fee at an annualized rate, based on
its  average  daily net assets,  of 0.75% and the  UltraJapan  ProFund  pays the
Advisor a fee at an annualized rate,  based on its average daily net assets,  of
0.90%.  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 each ProFund,  subject to the general supervision and control
of  Trustees  and the  officers  of the  Trust.  The  Advisor  bears  all  costs
associated with providing  these advisory  services.  The Advisor,  from its own
resources,  including  profits from  advisory  fees  received from the 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. The Advisor's address is 7900 Wisconsin
Avenue, Suite 300, Bethesda, Maryland 20814.

ADMINISTRATION, TRANSFER AGENT, FUND ACCOUNTING AGENT AND CUSTODIAN

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

     For its  services as  Administrator,  each ProFund pays BISYS an annual fee
equal to .05% of average daily net assets. BISYS Funds Services,  Inc. ("BFSI"),
an affiliate of BISYS,  acts as transfer agent and fund accounting agent for the
ProFunds,  for which it receives  additional  fees.  Additionally,  ProFunds and
BISYS and BFSI have entered into an Omnibus Fee Agreement in which the amount of
compensation  due and payable to BISYS shall be the greater of (i) the aggregate
fee amount due and payable for services


                                       19
<PAGE>

pursuant to the  Administration,  Fund Accounting and Transfer Agency Agreements
and (ii) the minimum  relationship  fee  described  as specific  dollar  amounts
payable over a period of ten calendar  quarters.  The address for BISYS and BFSI
is 3435 Stelzer Road, Suite 1000, Columbus, Ohio 43219.

     The Advisor, pursuant to a separate Management Services Agreement, performs
certain  client  support  and  other  administrative  services  on behalf of the
ProFunds. For these services,  each ProFund will pay to the Advisor a fee at the
annual rate of .15% of its average daily net assets for all ProFunds.

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

INDEPENDENT ACCOUNTANTS

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

LEGAL COUNSEL

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

DISTRIBUTOR

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

SHAREHOLDER SERVICES PLAN

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

     The Trustees of the Trust, including a majority of the Trustees who are not
interested  persons  of the Trust and who have no direct or  indirect  financial
interest  in the  operation  of the  Plan or the  related  Shareholder  Services
Agreements,  have voted to adopt the Plan and Shareholder Services Agreements at
a meeting  called  for the  purposes  of  voting  on such  Plan and  Shareholder
Services Agreements. The Plan and Shareholder Services Agreements will remain in
effect for a period of one year and will continue in effect  thereafter  only if
such continuance is specifically  approved annually by a vote of the Trustees in
the manner described above. The Plan may be terminated at any time by a majority
of the Trustees as described above or by a vote of a majority of the outstanding
Service  Class  shares  of  the  affected  ProFund.   The  Shareholder  Services
Agreements  may be terminated at any time,  without  payment of any penalty,  by
vote of a majority of the Trustees as described above or by a vote of a majority
of the outstanding Service Class shares of the affected ProFund on not more than
60 days' written notice to any other party to the

                                       20
<PAGE>

Shareholder  Services  Agreements.  The Shareholder  Services  Agreements  shall
terminate automatically if assigned. The Trustees have determined that, in their
judgment,  there is a  reasonable  likelihood  that the Plan  will  benefit  the
ProFunds and holders of Service Class shares of such ProFunds.  In the Trustees'
quarterly  review of the Plan and  Shareholder  Services  Agreements,  they will
consider their continued  appropriateness and the level of compensation provided
therein.

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

                               COSTS AND EXPENSES

     Each ProFund bears all expenses of its operations  other than those assumed
by the Advisor or the  Administrator.  ProFund expenses include:  the management
fee;  administrative  and  transfer  agent  fees;  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 Trustees' fees and expenses.

          ORGANIZATION AND DESCRIPTION OF SHARES OF BENEFICIAL INTEREST

     ProFunds is a registered  open-end  investment  company under the 1940 Act.
The Trust was organized as a Delaware  business trust on April 17, 1997, and has
authorized  capital of unlimited  shares of beneficial  interest of no par value
which  may be issued in more  than one  class or  series.  Currently,  the Trust
consists of twenty-three separately managed series, three of which are described
herein. Other series may be added in the future. Each ProFund offers two classes
of share: the Service Class shares and the Investor Class shares.

     All shares of the ProFunds are freely transferable. The Trust shares do not
have preemptive rights or cumulative voting rights,  and none of the shares have
any preference to conversion,  exchange,  dividends,  retirements,  liquidation,
redemption,  or any other feature. Trust shares have equal voting rights, except
that, in a matter  affecting only a particular  series or class of shares,  only
shares of that series or class may be entitled to vote on the matter.

     Under   Delaware  law,  the  Trust  is  not  required  to  hold  an  annual
shareholders meeting if the 1940 Act does not require such a meeting. Generally,
there will not be annual meetings of Trust shareholders.  Trust shareholders may
remove Trustees from office by votes cast at a meeting of Trust  shareholders or
by written  consent of such Trustees.  If requested by  shareholders of at least
10% of the  outstanding  shares of the  Trust,  the Trust will call a meeting of
shareholders for the purpose of voting upon the question of removal of a Trustee
of the Trust and will assist in communications with other Trust shareholders.

     The  Declaration  of  Trust  of  the  Trust  disclaims   liability  of  the
shareholders  or the officers of the Trust for acts or  obligations of the Trust
which are binding only on the assets and property of the Trust.  The Declaration
of Trust provides for  indemnification  of the Trust's property for all loss and
expense of any  shareholder  held  personally  liable for the obligations of the
Trust. The risk of a Trust  shareholder  incurring  financial loss on account of
shareholder  liability  is limited to  circumstances  in which the Trust  itself
would  not be able  to  meet  the  Trust's  obligations.  This  risk  should  be
considered remote.

                                       21
<PAGE>

     If a  ProFund  does  not  grow to a size to  permit  it to be  economically
viable,  the ProFund may cease  operations.  In such an event,  investors may be
required to liquidate or transfer their investments at an inopportune time.

                                    TAXATION

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

     Dividends out of net ordinary  income and  distribution  of net  short-term
capital gains are taxable to the recipient U.S. shareholders as ordinary income,
whether  received in cash or reinvested in ProFund  shares.  Dividends  from net
ordinary income may be eligible for the corporate dividends-received deduction.

     The excess of net long-term  capital gains over the net short-term  capital
losses realized and distributed by a ProFund to its U.S. shareholders as capital
gains  distributions  is taxable to the  shareholders as gain from the sale of a
capital  asset held for more than one year,  regardless  of the length of time a
shareholder has held the ProFund shares.  If a shareholder  holds ProFund shares
for six months or less and during that period receives a distribution taxable to
the shareholder as long-term  capital gain, any loss realized on the sale of the
ProFund shares will be long-term loss to the extent of such distribution.

     The amount of an income dividend or capital gains distribution  declared by
a ProFund  during  October,  November or December  of a year to  shareholder  of
record as of a specified date in such a month that is paid during January of the
following year will be deemed to be received by  shareholders  on December 31 of
the prior year.

     Any dividend or  distribution  paid by a ProFund has the effect of reducing
the ProFund's net asset value per share. Investors should be careful to consider
the tax effect of buying shares shortly before a distribution by a ProFund.  The
price  of  shares  purchased  at  that  time  will  include  the  amount  of the
forthcoming   distribution,   but  the  distribution  will  be  taxable  to  the
shareholder.

     A  dividend  or  capital  gains  distribution  with  respect to shares of a
ProFund held by a tax-deferred  or qualified  plan,  such as an IRA,  retirement
plan or corporate  pension or profit  sharing  plan,  will not be taxable to the
plan.  Distribution  from such plans will be taxable to individual  participants
under  applicable tax rules without regard to the character of the income earned
by the qualified plan.

     Shareholders  will be  advised  annually  as to the  federal  tax status of
dividends and capital gains  distribution made by the ProFunds for the preceding
year. Distributions by the ProFunds generally will be subject to state and local
taxes.

     Each of the  ProFunds  intends to qualify and elect to be treated each year
as a regulated  investment  company (a "RIC") under  Subchapter M of the Code. A
RIC  generally  is not  subject  to  federal  income  tax on  income  and  gains
distributed in a timely manner to its  shareholders.  Accordingly,  each ProFund
generally must, among other things, (a) derive in each taxable year at least 90%
of its gross income from dividends,  interest,  payments with respect to certain
securities  loans,  and  gains  from  the sale or other  disposition  of  stock,
securities or foreign  currencies,  or other income  derived with respect to its
business of investing in such stock, securities or currencies; and (b) diversify
its holdings so that, at the end of each fiscal quarter, (i) at least 50% of the
market value of the ProFund's assets is represented by cash, U.S.

                                       22
<PAGE>

government  securities,  the securities of other regulated  investment companies
and other securities,  with such other securities limited, in respect of any one
issuer,  to an amount not greater  than 5% of the value of the  ProFund's  total
assets and 10% of the outstanding voting securities of such issuer, and (ii) not
more than 25% of the value of its total assets is invested in the  securities of
any one issuer  (other than U.S.  government  securities  and the  securities of
other regulated investment companies).

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

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

MARKET DISCOUNT

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

ORIGINAL ISSUE DISCOUNT

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

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

                                       23
<PAGE>

OPTIONS, FUTURES AND FOREIGN CURRENCY FORWARD CONTRACTS

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

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

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

CONSTRUCTIVE SALES

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

PASSIVE FOREIGN INVESTMENT COMPANIES

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

     The  ProFunds  may be  eligible to elect  alternative  tax  treatment  with
respect to PFIC shares.  Under an election  that  currently is available in some
circumstances,  a ProFund  generally  would be  required to


                                       24
<PAGE>

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

DISTRIBUTIONS

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

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

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

     If a  shareholder  has chosen to  receive  distributions  in cash,  and the
postal ( or other  delivery  )  service  is  unable  to  deliver  checks  to the
shareholder's  address of record,  the  ProFunds  will  change the  distribution
option so that all  distributions  are  automatically  reinvested  in additional
shares. The ProFunds will not pay interest on uncashed distribution checks.

DISPOSITION OF SHARES

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

BACKUP WITHHOLDING

     Each ProFund generally will be required to withhold federal income tax at a
rate  of  31%  ("backup   withholding")   from  dividends  paid,   capital  gain
distributions,  and redemption  proceeds to  shareholders if (1) the shareholder
fails  to  furnish  the  ProFund  with  the   shareholder's   correct   taxpayer
identification

                                       25
<PAGE>

number or social  security  number,  (2) the IRS notifies the shareholder or the
ProFund that the shareholder has failed to report properly  certain interest and
dividend income to the IRS and to respond to notices to that effect, or (3) when
required  to do so,  the  shareholder  fails  to  certify  that he or she is not
subject to backup withholding.  Any amounts withheld may be credited against the
shareholder's federal income tax liability.

OTHER TAXATION

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

EQUALIZATION ACCOUNTING

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

                             PERFORMANCE INFORMATION

TOTAL RETURN CALCULATIONS

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

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

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



                                       26
<PAGE>

COMPARISONS OF INVESTMENT PERFORMANCE

     In conjunction with performance  reports,  promotional  literature,  and/or
analyses of shareholder  service for a ProFund,  comparisons of the  performance
information of the ProFund for a given period to the  performance of recognized,
unmanaged indexes for the same period may be made. Such indexes include, but are
not  limited  to,  ones  provided  by Dow  Jones &  Company,  Standard  & Poor's
Corporation,  Lipper Analytical  Services,  Inc., Shearson Lehman Brothers,  the
National  Association of Securities  Dealers,  Inc., The Frank Russell  Company,
Value Line  Investment  Survey,  the American Stock Exchange,  the  Philadelphia
Stock Exchange, Morgan Stanley Capital International,  Wilshire Associates,  the
Financial  Times-Stock  Exchange,  and the Nikkei  Stock  Average  and  Deutsche
Aktienindex,  all of which are unmanaged market indicators. Such comparisons can
be useful  measures  of the quality of a ProFund's  investment  performance.  In
particular,  performance  information  for  the  UltraSmall-Cap  ProFund  may be
compared to various unmanaged indexes, including, but not limited to its current
benchmark,   the  Russell  2000(R)  Index;   performance   information  for  the
UltraMid-Cap  ProFund may be compared to various unmanaged  indexes,  including,
but not limited to, its current benchmark,  the S&P MidCap 400 Index(R); and the
performance  information  for the UltraJapan  ProFund may be compared to various
unmanaged indexes,  including,  but not limited to, its current  benchmark,  the
Nikkei 225 Stock Average.

     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 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.

     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
the telephone number set forth on the cover page of this SAI.  However,  because
the  ProFunds  have no  history  of  investment  operations,  they  have not yet
prepared any shareholder reports.

RATING SERVICES

     The  ratings of  Moody's  Investors  Service,  Inc.  and  Standard & Poor's
Ratings Group  represent their opinions as to the quality of the securities that
they  undertake  to rate.  It should be  emphasized,  however,  that ratings are
relative  and  subjective  and are not absolute  standards of quality.  Although
these ratings are an initial  criterion for selection of portfolio  investments,
the Advisor also makes its own evaluation of these securities, subject to review
by the Board of Trustees.  A  description  of the ratings used herein and in the
Prospectus is set forth in the Appendix to this SAI.

         Other Information
         -----------------

     The ProFunds are not  sponsored,  endorsed,  sold or promoted by Standard &
Poor's, a division of The McGraw-Hill Companies, Inc. ("S&P"), the Frank Russell
Company or NKS. S&P, the Frank Russell Company or NKS make no  representation or
warranty,  express or  implied,  to the owners of shares of the  ProFunds or any
member of the public  regarding  the  advisability  of investing  in  securities
generally or in the ProFunds  particularly  or the ability of the S&P MidCap 400
Index(R),   the  Russell   2000(R)  Index  or  the  Nikkei  225  Stock  Average,
respectively,  to track  general  stock  market  performance.  S&P's,  the Frank
Russell Company's and NKS' only relationship to the Profunds (the "Licensee") is
the  licensing of certain  trademarks  and trade names of S&P, the Frank Russell
Company and NKS,  respectively,  and of the S&P MidCap 400 Index(R), the Russell
2000(R)  Index and the Nikkei 225 Stock  Average,  respectively.  S&P, the Frank
Russell  Company and NKS have no obligation to take the needs of the Licensee or
the  owners  of  shares  of the  ProFunds  into  consideration  in  determining,
composing or calculating the S&P MidCap 400 Index(R),  the Russell 2000(R) Index
and the Nikkei 225 Stock Average, respectively. S&P, the Frank Russell Company


                                       27
<PAGE>

and NKS are not responsible for and have not  participated in the  determination
or  calculation  of the  equation by which the shares of the  ProFunds are to be
converted into cash.  S&P, the Frank Russell  Company and NKS have no obligation
or liability in connection with the administration,  marketing or trading of the
ProFunds.

     S&P DOES NOT  GUARANTEE  THE ACCURACY  AND/OR THE  COMPLETENESS  OF THE S&P
MIDCAP 400 INDEX(R) OR ANY DATA INCLUDED THEREIN AND S&P SHALL HAVE NO LIABILITY
FOR ANY ERRORS,  OMISSIONS,  OR  INTERRUPTIONS  THEREIN.  S&P MAKES NO WARRANTY,
EXPRESS OR IMPLIED,  AS TO RESULTS TO BE OBTAINED BY LICENSEE,  OWNERS OF SHARES
OF THE  PROFUNDS,  OR ANY OTHER  PERSON OR ENTITY FROM THE USE OF THE S&P MIDCAP
400  INDEX(R)  OR ANY DATA  INCLUDED  THEREIN.  S&P MAKES NO  EXPRESS OR IMPLIED
WARRANTIES, AND EXPRESSLY DISCLAIMS ALL WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A  PARTICULAR  PURPOSE OR USE WITH RESPECT TO THE S&P MIDCAP 400 INDEX(R) OR
ANY DATA INCLUDED  THEREIN.  WITHOUT LIMITING ANY OF THE FOREGOING,  IN NO EVENT
SHALL  S&P  HAVE  ANY  LIABILITY  FOR  ANY  SPECIAL,   PUNITIVE,   INDIRECT,  OR
CONSEQUENTIAL  DAMAGES  (INCLUDING  LOST  PROFITS),  EVEN  IF  NOTIFIED  OF  THE
POSSIBILITY OF SUCH DAMAGES.

                              FINANCIAL STATEMENTS

     Since  the  ProFunds  had not  commenced  operation  as of the date of this
Statement  of  Additional  Information,  there are no  financial  statements  to
include in the Statement of Additional Information.

     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,  IN CONNECTION WITH THE OFFERING MADE BY THE PROSPECTUS
AND, IF GIVEN OR MADE, SUCH INFORMATION OR PRESENTATIONS MUST NOT BE RELIED UPON
AS HAVING BEEN AUTHORIZED BY PROFUNDS.  THIS STATEMENT OF ADDITIONAL INFORMATION
DOES NOT CONSTITUTE AN OFFERING BY PROFUNDS IN ANY JURISDICTION IN WHICH SUCH AN
OFFERING MAY NOT LAWFULLY BE MADE.

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<PAGE>

                                    APPENDIX

                        DESCRIPTION OF SECURITIES RATINGS

DESCRIPTION OF S&P'S CORPORATE RATINGS:

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

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

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

DESCRIPTION OF MOODY'S CORPORATE BOND RATINGS:

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

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

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

DESCRIPTION OF FITCH INVESTORS SERVICE'S CORPORATE BOND RATINGS:

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

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

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<PAGE>

DESCRIPTION OF DUFF & PHELPS' CORPORATE BOND RATINGS:

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

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

DESCRIPTION OF S&P'S MUNICIPAL BOND RATINGS:

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

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

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

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

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

DESCRIPTION OF MOODY'S MUNICIPAL BOND RATINGS:

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

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

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

DESCRIPTION OF S&P'S MUNICIPAL NOTE RATINGS:

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


                                       30
<PAGE>

overwhelming  safety  characteristics  are given the designation of SP-1+. Notes
rated SP-2 have a satisfactory capacity to pay principal and interest.

DESCRIPTION OF MOODY'S MUNICIPAL NOTE RATINGS:

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

DESCRIPTION OF S&P COMMERCIAL PAPER RATINGS:

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

DESCRIPTION OF MOODY'S COMMERCIAL PAPER RATINGS:

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

DESCRIPTION OF FITCH INVESTORS SERVICE'S COMMERCIAL PAPER RATINGS:

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

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

DESCRIPTION OF DUFF & PHELPS' COMMERCIAL PAPER RATINGS:

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

     Duff 1-Very high certainty of timely +.

DESCRIPTION OF MOODY'S COMMERCIAL PAPER RATINGS:

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

DESCRIPTION OF FITCH INVESTORS SERVICE'S COMMERCIAL PAPER RATINGS:

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

                                       31
<PAGE>

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

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

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

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

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

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

     C-Obligations which are currently in default.

     Notes: "+" or "-".

DESCRIPTION OF MOODY'S COMMERCIAL PAPER RATINGS:

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

DESCRIPTION OF FITCH INVESTORS SERVICE'S COMMERCIAL PAPER RATINGS:

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

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

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

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

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

DESCRIPTION OF THOMSON BANK WATCH SHORT-TERM RATINGS:

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

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

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<PAGE>

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

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

DESCRIPTION OF THOMSON BANKWATCH LONG-TERM RATINGS:

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

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

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

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

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

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

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

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

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

     D-Default

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

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


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