PROFUNDS
497, 2000-10-20
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                                                                     May 1, 2000
                                                                      as revised
                                                                October 16, 2000
                                                                      Prospectus

[GRAPHIC]

ProFunds Mutual Funds
Bull ProFund
UltraBull ProFund
UltraMid-Cap ProFund
UltraSmall-Cap ProFund
UltraOTC ProFund
UltraEurope ProFund
UltraJapan ProFund
Bear ProFund
UltraBear ProFund
UltraShort OTC ProFund
Money Market ProFund

                                                                 [PROFUNDS LOGO]

Like shares of all mutual funds, these securities have not been approved or
disapproved by the Securities and Exchange Commission nor has the Securities and
Exchange Commission passed upon the accuracy or adequacy of this prospectus. Any
representation to the contrary is a criminal offense.


<PAGE>


                  Table of Contents

          1       Benchmark ProFunds
         19       Benchmark ProFunds Strategy
         23       Money Market ProFund
         31       Share Prices, Classes & Tax Information
         37       Shareholder Services Guide
         49       ProFunds Management
         53       Financial Highlights



                    ProFund Advisors LLC
                    Bankers Trust Company
[PROFUNDS LOGO]     Investment Advisors

<PAGE>

                                                                       Benchmark
                                                                        ProFunds


         Overview
                  The no-load Benchmark ProFunds each seek to achieve a daily
                  return equal to the performance of a particular stock market
                  benchmark.*

                  o For example, the Bull ProFund seeks to match the daily
                  performance of a stock market index--the S&P 500 Composite
                  Stock Price Index(R) ("S&P 500 Index")--like a conventional
                  index fund.

                  o Unlike conventional index funds, certain ProFunds seek to
                  double the daily return of a specified stock market index.

                  o Other ProFunds seek to produce a daily return of the inverse
                  (opposite) or double the inverse (opposite) of a particular
                  stock market index. The value of these ProFunds should go up
                  when the index underlying their benchmark goes down, and their
                  value should go down when the index goes up.

                 *A benchmark can be any standard of investment performance to
                  which a mutual fund seeks to match its return, such as a stock
                  index. A stock index reflects the price of a group of stocks
                  of specified companies. For example, UltraBull ProFund has a
                  benchmark of twice the daily return of the S&P 500 Index.

                                                           Benchmark ProFunds  1
<PAGE>

               These ProFunds seek to match or double an Index's daily
performance:

<TABLE>
<CAPTION>
<S>                 <C>                 <C>                   <C>
  ProFund         Index              Daily Objective    Types of Companies in Index

  Bull            S&P 500            Match             Diverse, widely traded,
                                                       large capitalization

  UltraBull       S&P 500            Double            Diverse, widely traded,
                                                       large capitalization

  UltraMid-Cap    S&P MidCap 400     Double            Diverse, widely traded, mid-
                                                       sized capitalization companies

  UltraSmall-Cap  Russell 2000       Double            Diverse, small capitalization

  UltraOTC        NASDAQ 100         Double            Large capitalization, most
                                                       with technology and/or
                                                       growth orientation

  UltraEurope     ProFunds Europe    Double            Large capitalization, widely
                                                       traded European stocks

  UltraJapan      Nikkei 225         Double            Large capitalization, widely
                  Stock Average                        traded Japanese stocks
</TABLE>



These ProFunds seek to match or double the inverse (opposite) of an Index's
daily performance:

<TABLE>
<CAPTION>
<S>                 <C>                 <C>                  <C>
  ProFund         Index             Daily Objective    Types of Companies in Index

  Bear            S&P 500           Inverse            Diverse, widely traded,
                                                       large capitalization

  UltraBear       S&P 500           Double the inverse Diverse, widely traded,
                                                       large capitalization

  UltraShort OTC  NASDAQ 100        Double the inverse Large capitalization, most
                                                       with technology and/or
                                                       growth orientation
</TABLE>


                  The ProFunds also offer the Money Market ProFund, which is
                  discussed later in this prospectus.

2    Benchmark ProFunds

<PAGE>

       Benchmark ProFunds' Objectives
                  The investment objective of each of the Benchmark ProFunds is
                  set forth below:

                  o Bull ProFund--seeks daily investment results that correspond
                  to the performance of the S&P 500 Index.

                  o UltraBull ProFund--seeks daily investment results that
                  correspond to twice (200%) the performance of the S&P 500
                  Index. If the UltraBull ProFund is successful in meeting its
                  objective, it should gain approximately twice as much as the
                  Bull ProFund when the prices of the securities in the S&P 500
                  Index rise on a given day and should lose approximately twice
                  as much when such prices decline on that day.

                  o UltraMid-Cap ProFund--seeks daily investment results that
                  correspond to twice (200%) the performance of the S&P MidCap
                  400 Index. If the UltraMid-Cap ProFund is successful in
                  meeting its objective, it should gain approximately twice as
                  much as the S&P MidCap 400 Index when the prices of the
                  securities in that index rise on a given day and should lose
                  approximately twice as much when such prices decline on that
                  day.

                  o UltraSmall-Cap ProFund--seeks daily investment results that
                  correspond to twice (200%) the performance of the Russell
                  2000(R) Index. If the UltraSmall-Cap ProFund is successful in
                  meeting its objective, it should gain approximately twice as
                  much as the Russell 2000(R) Index when the prices of the
                  securities in that index rise on a given day and should lose
                  approximately twice as much when such prices decline on that
                  day.

                  o UltraOTC ProFund--seeks daily investment results that
                  correspond to twice (200%) the performance of the NASDAQ 100
                  Index(TM). If the UltraOTC ProFund is successful in meeting
                  its objective, it should gain approximately twice as much as
                  the growth oriented NASDAQ 100 Index(TM) when the prices of
                  the securities in that index rise on a given day and should
                  lose approximately twice as much when such prices decline on
                  that day.

                  o UltraEurope ProFund--seeks daily investment results that
                  correspond to twice (200%) the performance of the ProFunds
                  Europe Index. If the UltraEurope ProFund is successful in
                  meeting its objective, it should gain approximately twice as
                  much as the ProFunds Europe Index when the prices of the
                  securities in that index rise on a given day and should lose
                  approximately twice as much when such prices decline on that
                  day.

                                                           Benchmark ProFunds  3

<PAGE>

                  o UltraJapan ProFund--seeks daily investment results that
                  correspond to twice (200%) the performance of the Nikkei 225
                  Stock Average. Since the Japanese markets are not open when
                  this ProFund values its shares, it determines its success in
                  meeting this investment objective by comparing its daily
                  return on a given day with the performance of related futures
                  contracts traded in the United States. See "Valuation Time
                  Risk" for additional information.

                  If the UltraJapan ProFund is successful in meeting its
                  objective, it should gain approximately twice as much as the
                  Nikkei 225 Stock Average when the prices of the securities in
                  that index rise on a given day and should lose approximately
                  twice as much when such prices decline on that day.

                  o Bear ProFund--seeks daily investment results that correspond
                  to the inverse (opposite) of the performance of the S&P 500
                  Index. If the Bear ProFund is successful in meeting its
                  objective, the net asset value of Bear ProFund shares will
                  increase in direct proportion to any decrease in the level of
                  the S&P 500 Index. Conversely, the net asset value of Bear
                  ProFund shares will decrease in direct proportion to any
                  increase in the level of the S&P 500 Index.

                  o UltraBear ProFund--seeks daily investment results that
                  correspond to twice (200%) the inverse (opposite) of the
                  performance of the S&P 500 Index. The net asset value of
                  shares of the UltraBear ProFund should increase or decrease
                  approximately twice as much as does that of the Bear ProFund
                  on any given day.

                  --------------------------------------------------------------
                    For example, if the S&P 500 Index were to decrease by 1% on
                    a particular day, investors in the Bear ProFund should
                    experience a gain in net asset value of approximately 1% for
                    that day. The UltraBear ProFund should realize an increase
                    of approximately 2% of its net asset value on the same day.
                    Conversely, if the S&P 500 Index were to increase by 1% by
                    the close of business on a particular trading day, investors
                    in the Bear ProFund and the UltraBear ProFund would
                    experience a loss in net asset value of approximately 1% and
                    2%, respectively.
                  --------------------------------------------------------------

                  o UltraShort OTC ProFund--seeks daily investment results that
                  correspond to twice (200%) the inverse (opposite) of the
                  performance of the NASDAQ 100 Index(TM). This ProFund operates
                  similar to the UltraBear ProFund, but UltraShort OTC ProFund
                  is benchmarked to the NASDAQ 100 Index(TM).

                  The securities indexes that these ProFunds use as their
                  benchmarks are described below under "Benchmark Indexes."

4    Benchmark ProFunds

<PAGE>

          Strategy
                  ProFund Advisors LLC ("ProFund Advisors"), the Benchmark
                  ProFunds' investment advisor, uses a "passive" approach to
                  investing, employing quantitative analysis. On the basis of
                  this analysis, ProFund Advisors determines the type, quantity
                  and mix of investment positions that each Benchmark ProFund
                  should hold to approximate the performance of it's benchmark.
                  ProFund Advisors does not make judgments about the investment
                  merit of a particular stock, nor does it attempt to apply any
                  economic, financial or market analysis. The Benchmark ProFunds
                  do not take temporary defensive positions.

                  The Bull, UltraBull, UltraMid-Cap, UltraSmall-Cap, UltraOTC,
                  and UltraEurope ProFunds principally invest in:

                  o A combination of equity securities that in ProFund Advisors'
                  opinion should simulate the movement of the appropriate
                  benchmark index;

                  o Futures contracts on stock indexes, and options on futures
                  contracts; and

                  o Financial instruments such as equity caps, collars, floors,
                  swaps, and options on securities and stock indexes.

                  The UltraJapan ProFund principally invests in:

                  o Futures contracts on stock indexes, and options on futures
                  contracts; and

                  o Financial instruments such as equity caps, collars, floors,
                  swaps, depository receipts, and options on securities and
                  stock indexes.

                  In addition, the UltraJapan ProFund may invest in a
                  combination of stocks that in ProFund Advisors' opinion,
                  should simulate the movement of the Nikkei 225 Stock Average.

                  These Benchmark ProFunds invest in futures contracts on stock
                  indexes, options on futures contracts, and the other financial
                  instruments noted above as a substitute for investing directly
                  in stocks in order to gain exposure to the appropriate
                  benchmark index.

                  The Ultra ProFunds generally invest in the above instruments
                  to produce economically "leveraged" investment results.
                  Leverage is a way to change small market movements into larger
                  changes in the value of a Benchmark ProFund's investments.

                  The UltraEurope ProFund invests in financial instruments with
                  values that reflect the performance of stocks of European
                  companies.

                  The UltraJapan ProFund invests in financial instruments
                  including American Depository Receipts ("ADRs") with values
                  that reflect the performance of stocks issued by certain
                  Japan-based companies.

                                                           Benchmark ProFunds  5

<PAGE>


                  The Bear, UltraBear and UltraShort OTC ProFunds generally
                  do not invest in traditional securities, such as common stock
                  of operating companies. Rather, these ProFunds principally
                  invest in futures contracts, options contracts and other
                  financial instruments, and engage in short sales. Using these
                  techniques, these ProFunds will generally incur a loss if the
                  price of the underlying security or index increases between
                  the date of the employment of the technique and the date on
                  which the ProFund terminates the position. These ProFunds will
                  generally realize a gain if the underlying security or index
                  declines in price between those dates.


         Benchmark ProFunds' Risks

                  Like all investments, the ProFunds entail risk. ProFund
                  Advisors cannot guarantee that any of the Benchmark ProFunds
                  will achieve its objective. As with any mutual fund, the
                  Benchmark ProFunds could lose money, or their performance
                  could trail that of other investment alternatives.

                  In addition, the Benchmark ProFunds present some risks not
                  traditionally associated with most mutual funds. It is
                  important that investors closely review and understand these
                  risks before making an investment in the ProFunds.

                  The following chart summarizes certain risks associated with
                  the Benchmark ProFunds:



<TABLE>
<CAPTION>


                                       Inverse                 Small                Mid-
                    Market  Leverage   Correlation    Foreign  Capitalization       Capitalization
                    Risk    Risk       Risk           Risk     Risk                 Risk

<S>                 <C>     <C>         <C>           <C>       <C>                 <C>
  Bull              X
  UltraBull         X       X
  UltraMid-Cap      X       X                                                        X
  UltraSmall-Cap    X       X                                  X
  UltraOTC          X       X
  UltraEurope       X       X                         X
  UltraJapan        X       X                         X
  Bear              X                  X
  UltraBear         X       X          X
  UltraShort OTC    X       X          X
</TABLE>

                  These and other risks are described below.

6    Benchmark ProFunds

<PAGE>

                  Certain Risks Associated with Particular ProFunds

                  o Leverage Risk The Ultra ProFunds employ leveraged investment
                  techniques. Leverage is the ability to get a return on a
                  capital base that is larger than a ProFund's investment. Use
                  of leverage can magnify the effects of changes in the value of
                  these ProFunds and makes them more volatile. The leveraged
                  investment techniques that the Ultra ProFunds employ should
                  cause investors in these ProFunds to lose more money in
                  adverse environments.

                  o Inverse Correlation Risk Shareholders in the negatively
                  correlated ProFunds should lose money when the index
                  underlying their benchmark rises -- a result that is the
                  opposite from traditional equity mutual funds.


                  o Foreign Investment Risk The UltraEurope ProFund and the
                  UltraJapan ProFund entail the risk of foreign investing, which
                  may involve risks not typically associated with investing in
                  U.S. securities alone:

                    o Many foreign countries lack uniform accounting and
                    disclosure standards, or have standards that differ from
                    U.S. standards. Accordingly, these ProFunds may not have
                    access to adequate or reliable company information.
                    o UltraEurope ProFund and UltraJapan ProFund will be subject
                    to the market, economic and political risks of the countries
                    where they invest or where the companies represented in the
                    benchmark indexes are located. Because it may invest,
                    directly or indirectly, a large portion of its assets in
                    Japanese stocks, the UltraJapan ProFund's performance may be
                    particularly susceptible to economic, political or
                    regulatory events affecting Japanese companies and Japan,
                    generally.
                    o Securities purchased by these ProFunds may be priced in
                    foreign currencies. Their value could change significantly
                    as the currencies strengthen or weaken relative to the U.S.
                    dollar. ProFund Advisors does not engage in activities
                    designed to hedge against foreign currency fluctuations.
                    o On January 1, 1999, the eleven nations of the European
                    Monetary Union, including Germany and France, began the
                    process of introducing a uniform currency. The new currency,
                    the euro, is expected to reshape financial markets, banking
                    systems and monetary policy in Europe and throughout the
                    world. The

                                                           Benchmark ProFunds  7

<PAGE>

                  continued transition to the euro may also have a worldwide
                  impact on the economic environment and behavior of investors.

                  o Valuation Time Risk UltraJapan ProFund generally values its
                  assets as of the close of the New York Stock Exchange. Such
                  valuation will reflect market perceptions and trading activity
                  on the U.S. financial market since the calculation of the
                  closing level of the Nikkei 225 Stock Average. The Nikkei 225
                  Stock Average is determined in the early morning U.S. Eastern
                  time prior to the opening of the New York Stock Exchange. As a
                  result, the day-to-day correlation of the UltraJapan ProFund's
                  performance may vary from the closing performance of the
                  Nikkei 225 Stock Average. However, ProFunds believes that over
                  time the UltraJapan ProFund's performance will correlate
                  highly with the movement of the Nikkei 225 Stock Average.

                  o Small Company Investment Risk The UltraSmall-Cap ProFund
                  could experience greater risks than a fund which invests
                  primarily in large capitalized, widely traded companies, such
                  as:
                    o Small company stocks tend to have greater fluctuations in
                    price than the stocks of large companies.
                    o There can be a shortage of reliable information on certain
                    small companies, which at times can pose a risk.
                    o Small companies tend to lack the financial and personnel
                    resources to handle industry wide setbacks and as a result
                    such setbacks could have a greater effect on the companies
                    share prices.
                    o Small company stocks are typically less liquid then large
                    company stocks and liquidating positions in turbulent market
                    conditions could become difficult.

                  o Mid-Cap Company Investment Risk The UltraMid-Cap ProFund
                  could experience risks that a fund which invests in primarily
                  large capitalized, widely traded companies would not. Such
                  risks could include:
                    o Mid-Cap company stocks tend to have greater fluctuations
                    in price than the stocks of large companies, but not as
                    drastic as the stocks of small companies.
                    o Stocks of mid-sized companies could be more difficult to
                    liquidate during market downturns compared to larger, more
                    widely-traded companies.

8    Benchmark ProFunds

<PAGE>

                  Risks in Common
                  Each Benchmark ProFund faces certain risks:

                  o Market Risk The Benchmark ProFunds are subject to market
                  risks that will affect the value of their shares, including
                  general economic and market conditions, as well as
                  developments that impact specific industries or companies.
                  Shareholders in the positively correlated ProFunds should lose
                  money when the index underlying their benchmark declines.
                  Shareholders in the negatively correlated ProFunds should lose
                  money when the index underlying their benchmark rises. These
                  indexes are discussed in the next section.

                  o Liquidity Risk In certain circumstances, such as a
                  disruption of the orderly markets for the financial
                  instruments in which ProFunds invest, ProFunds might not be
                  able to dispose of certain holdings quickly or at prices that
                  represent true market value in the judgment of ProFund
                  Advisors. This may prevent ProFunds from limiting losses or
                  realizing gains.

                  o Correlation Risk  While ProFund Advisors expects that each
                  of the Benchmark ProFunds will track its benchmark with a high
                  level of correlation, there can be no guarantee of the level
                  of correlation that the ProFunds will be able to achieve. A
                  failure to achieve a high degree of correlation may prevent a
                  Benchmark ProFund from achieving its investment goal.

                  o Non-Diversification Risk The Benchmark ProFunds are
                  classified as "non-diversified" under the federal securities
                  laws. They have the ability to concentrate a relatively high
                  percentage of their investments in the securities of a small
                  number of companies. This would make the performance of a
                  Benchmark ProFund more susceptible to a single economic,
                  political or regulatory event than a more diversified mutual
                  fund might be. Nevertheless, the Benchmark ProFunds intend to
                  invest on a diversified basis.

                  o Risks of Aggressive Investment Techniques The Benchmark
                  ProFunds use investment techniques that may be considered
                  aggressive. Risks associated with the use of options, futures
                  contracts, and options on futures contracts include
                  potentially dramatic price changes (losses) in the value of
                  the instruments and imperfect correlations between the price
                  of the contract and the underlying security or index.

                                                           Benchmark ProFunds  9

<PAGE>

Benchmark Indexes

                  o The S&P 500 Index is a widely used measure of large U.S.
                  company stock performance. It consists of the common stocks of
                  500 major corporations selected for their size and the
                  frequency and ease with 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
                  companies in the S&P 500 account for nearly three-quarters of
                  the value of all U.S. stocks.

                  o The S&P MidCap 400 Index, 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 with which their stocks trade.
                  Standard & Poor's also attempts to assure that the Index
                  reflects the full range and diversity of the American economy.

                  o The Russell 2000(R) Index, is an unmanaged index consisting
                  of 2,000 small company common stocks. The Index comprises
                  2,000 of the smallest U.S. domiciled publicly traded common
                  stocks that are included in the Russell 3000(R) Index. These
                  common stocks represent approximately 8% of the total market
                  capitalization of the Russell 3000(R) Index which, in turn,
                  represents approximately 98% of the publicly traded U.S.
                  equity market.

                  o The NASDAQ 100 Index(TM) contains 100 of the largest and
                  most active non-financial domestic and international issues
                  listed on the NASDAQ Stock Market based on market
                  capitalization. Eligibility criteria for the NASDAQ 100
                  IndexTM includes a minimum average daily trading volume of
                  100,000 shares. If the security is a foreign security, the
                  company must have a world wide market value of at least $10
                  billion, a U.S. market value of at least $4 billion, and
                  average trading volume of at least 200,000 shares per day.

10  Benchmark ProFunds

<PAGE>

                  o ProFunds Europe Index ("PEI") is a combined measure of
                  European stock performance created by ProFund Advisors from
                  the leading stock indexes of Europe's three largest economies
                  giving equal weight to each index each day. The PEI averages
                  the daily results of:

                    o The Financial Times Stock Exchange 100 Index ("FTSE-100"),
                    a capitalization-weighted index of the 100 most highly
                    capitalized companies traded on the London Stock Exchange.

                    o The Deutsche Aktienindex ("DAX"), is a total rate of
                    return index of 30 selected German blue-chip stocks traded
                    on the Frankfurt Stock Exchange.

                    o The CAC-40, a capitalization-weighted index of 40
                    companies listed on the Paris Stock Exchange (the Bourse).

                  o 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).

                  ProFunds' Board of Trustees may change investment objectives
                  without shareholder approval if, for example, it believes
                  another benchmark might better suit shareholder needs.


         Who May Want to Consider a ProFunds Investment

                  The Bull ProFund may be appropriate for investors who want to
                  receive investment results approximating the performance of
                  the S&P 500 Index.

                  The Ultra ProFunds may be appropriate for investors who:

                  o believe that over the long term, the value of a particular
                  index will increase/decrease, and that by investing with the
                  objective of doubling the index's daily return, or the inverse
                  of the index's daily return, they will achieve superior
                  results over time. Investors in these ProFunds should
                  understand that since each Ultra ProFund seeks to double the
                  daily performance of its benchmark index, it should have twice
                  the volatility of a conventional index fund and twice the
                  potential risk of loss.


                                                          Benchmark ProFunds  11

<PAGE>

                  o are seeking to match an index's daily return with half the
                  investment required of conventional stock index mutual funds.

                  An investor might invest $100,000 in a conventional S&P 500
                  Index Fund. Alternatively that same investor could invest half
                  that amount--$50,000-- in UltraBull ProFund and target the
                  same daily return.

                  The Bear, UltraBear and UltraShort OTC ProFunds may be
                  appropriate for investors who:

                  o expect the underlying index to go down and desire to earn a
                  profit as a result of the index declining.

                  o want to protect (or hedge) the value of a diversified
                  portfolio of stocks and/or stock mutual funds from a stock
                  market downturn that they anticipate.

                  An investor with a diversified portfolio of stocks or stock
                  mutual funds valued at $100,000 might be concerned that the
                  general stock market could decline or be volatile for the next
                  six months. The investor could try to protect the portfolio
                  against downturns in the stock market by investing $50,000 in
                  Bear, UltraBear or UltraShort OTC ProFund or in a combination
                  of these ProFunds. Of course, the investor likely would also
                  be giving up gains that the portfolio would otherwise produce
                  if the markets go up rather than down in value. ProFunds
                  cannot assure that doing so would protect against market
                  downturns.

                  All of the ProFunds may be appropriate for investors who:
                  o are executing a strategy that relies on frequent buying,
                  selling or exchanging among stock mutual funds, since the
                  ProFunds do not limit how often an investor may exchange among
                  the ProFunds and do not impose any transaction fee when
                  investors buy, sell or exchange a ProFund, other than a $15
                  wire redemption fee.

                  o want the impact of their investment to range from double an
                  index to double the inverse of the index based on their
                  current view, positive or negative, of the index.


12  Benchmark ProFunds

<PAGE>

         Benchmark ProFunds' Performance

                  The bar chart and tables in this section can help you evaluate
                  the potential risks of investing in the Benchmark ProFunds.
                  The bar chart shows the annual returns for the Investor Class
                  shares of each Benchmark ProFund available to the public for a
                  year or more as of December 31, 1999 (which excludes the newly
                  formed UltraMid-Cap, UltraSmall-Cap, UltraEurope and
                  UltraJapan ProFunds). The first table compares each such
                  ProFund's return for Investor Class shares in 1999 and since
                  inception with its relevant benchmark index. The second table
                  compares each such ProFund's return for Service Class shares
                  in 1999 and since inception with its relevant benchmark index.
                  Of course, how a Benchmark ProFund has performed in the past
                  is not necessarily an indication of how it will perform in the
                  future.

                  Annual Returns as of December 31 each year





                                                                    Bull ProFund
                  17.18%..............................                      1999
                  26.57%..............................                      1998

                                                               UltraBull ProFund
                  29.56%..............................                      1999
                  42.95%..............................                      1998


                                                                UltraOTC ProFund
                  233.25%.............................                      1999
                  185.34%.............................                      1998

                                                                    Bear ProFund
                  -12.32%.............................                      1999
                  -19.46%.............................                      1998

                                                               UltraBear ProFund
                  -30.54%.............................                      1999
                  -38.34%.............................                      1998

                                                          UltraShort OTC ProFund
                  -80.36%.............................                      1999


                  During the period covered in the chart above, the highest and
                  lowest returns of the Investor Class shares of each of these
                  Benchmark ProFunds in any calendar quarter were as follows:

                                    Highest Quarterly        Lowest Quarterly
                                    Return (%)               Return (%)
--------------------------------------------------------------------------------

           Bull ProFund             Q4 1998 (20.37%)         Q3 1998 (-9.96%)

           UltraBull ProFund        Q4 1998 (41.34%)         Q3 1998 (-22.48%)

           UltraOTC ProFund         Q4 1999 (126.35%)        Q3 1998 (-5.16%)

           Bear ProFund             Q3 1998 (11.11%)         Q4 1998 (-17.06%)

           UltraBear ProFund        Q3 1998 (17.87%)         Q4 1998 (-32.26%)

           UltraShort OTC ProFund   Q3 1999 (-11.72%)        Q4 1999 (-58.87%)

                                                          Benchmark ProFunds  13
<PAGE>

Average Annual INVESTOR CLASS Share Returns
as of December 31, 1999

                          One Year           Since Inception      Inception Date

  Bull ProFund              17.18%                20.20%             12/02/97
  S&P 500 Index*            19.53%                22.00%

  UltraBull ProFund         29.56%                36.08%             11/28/97
  S&P 500 Index*            19.53%                22.86%

  UltraOTC ProFund         233.25%               170.63%             12/02/97
  NASDAQ 100 Index(TM)(a)* 101.95%                83.27%

  Bear ProFund             -12.32%               -15.95%             12/31/97
  S&P 500 Index*            19.53%                23.05%

  UltraBear ProFund        -30.54%               -33.06%             12/23/97
  S&P 500 Index*            19.53%                24.78%

  UltraShort OTC ProFund   -80.36%               -82.45%              6/02/98
  NASDAQ 100 Index(TM)(a)* 101.95%               105.54%


Average Annual SERVICE CLASS Share Returns
as of December 31, 1999

                          One Year           Since Inception      Inception Date

  Bull ProFund              15.97%                19.20%             12/02/97
  S&P 500 Index*            19.53%                22.00%

  UltraBull ProFund         28.42%                34.85%             11/28/97
  S&P 500 Index*            19.53%                22.86%

  UltraOTC ProFund         229.73%               168.67%             12/02/97
  NASDAQ 100 Index(TM)(a)* 101.95%                83.27%

  Bear ProFund             -13.32%               -16.73%             12/31/97
  S&P 500 Index*            19.53%                23.05%

  UltraBear ProFund        -31.20%               -33.47%             12/23/97
  S&P 500 Index*            19.53%                24.78%

  UltraShort OTC ProFund   -80.62%               -82.61%              6/02/98
  NASDAQ 100 Index(TM)(a)* 101.95%               105.54%

*Excludes dividends.


14   Benchmark ProFunds
<PAGE>

         Annual Benchmark ProFund Operating Expenses

         The tables below describe the fees and expenses you may pay if you buy
         and hold shares in any of the Benchmark ProFunds. The ProFunds are
         "no-load" mutual funds. You pay no sales charge when you buy or sell
         shares, or when you reinvest dividends.

Shareholder Fees - INVESTOR CLASS SHARES and SERVICE CLASS SHARES
(paid directly from your investment)

  Wire Redemption Fee*              $15

* This charge may be waived at the discretion of the ProFunds.

 Annual Operating Expenses--INVESTOR CLASS Shares
 (percentage of average daily net assets)

<TABLE>
<CAPTION>
                     Bull       UltraBull   UltraMid-Cap   UltraSmall-Cap    UltraOTC
                     ProFund    ProFund     ProFund(1)     ProFund(1)        ProFund

<S>                  <C>        <C>         <C>            <C>               <C>
  Management fees    0.75%      0.75%       0.75%          0.75%             0.75%

  Other expenses     0.78%      0.61%       0.56%          0.59%             0.58%

  Total annual       1.53%      1.36%       1.31%          1.34%             1.33%
  operating expenses
</TABLE>

<TABLE>
<CAPTION>
                     UltraEurope  UltraJapan   Bear         UltraBear     UltraShort OTC
                     ProFund      ProFund(1)   ProFund      ProFund       ProFund

<S>                  <C>          <C>          <C>          <C>           <C>
  Management fees    0.90%        0.90%        0.75%        0.75%         0.75%

  Other expenses     1.63%        0.37%        0.93%        0.68%         0.70%

  Total annual       2.53%        1.27%        1.68%        1.43%         1.45%
  operating expenses
</TABLE>

(1) Based on estimated expenses to be incurred in the first year of operations.



                                                         Benchmark ProFunds   15
<PAGE>

 Annual Operating Expenses--SERVICE CLASS Shares
 (percentage of average daily net assets)

<TABLE>
<CAPTION>
                     Bull         UltraBull    UltraMid-Cap   UltraSmall-Cap   UltraOTC
                     ProFund      ProFund      ProFund(1)     ProFund(1)       ProFund

<S>                  <C>          <C>          <C>            <C>              <C>
  Management fees    0.75%        0.75%        0.75%          0.75%            0.75%

  Service fee(2)     1.00%        1.00%        1.00%          1.00%            1.00%

  Other expenses     0.73%        0.61%        0.56%          0.59%            0.57%

  Total annual       2.48%        2.36%        2.31%          2.34%            2.32%
  operating expenses
</TABLE>

<TABLE>
<CAPTION>
                     UltraEurope  UltraJapan   Bear         UltraBear     UltraShort OTC
                     ProFund      ProFund(1)   ProFund      ProFund       ProFund

<S>                  <C>          <C>          <C>          <C>           <C>
  Management fees    0.90%        0.90%        0.75%        0.75%         0.75%

  Service fee(2)     1.00%        1.00%        1.00%        1.00%         1.00%

  Other expenses     1.68%        0.37%        1.16%        0.67%         0.71%

  Total annual       3.58%        2.27%        2.91%        2.42%         2.46%
  operating expenses
</TABLE>

(1) Based on estimated expenses to be incurred in the first year of operations.
(2) ProFunds has adopted a Shareholder Services Plan pursuant to which each
    ProFund may pay fees of up to 1.00% of the net asset value of the ProFund's
    Service Class shares to financial intermediaries that agree to provide
    services to customers holding Service Class shares. For additional
    information concerning the terms of the Shareholder Services Plan and
    related service agreements with financial intermediaries, see "Share Prices,
    Classes and Tax Information -- Classes of Shares."





16   Benchmark ProFunds
<PAGE>

Expense Examples
                  The following examples illustrate the expenses you would have
                  incurred on a $10,000 investment in each Benchmark ProFund,
                  and are intended to help you compare the cost of investing in
                  the Benchmark ProFunds compared to other mutual funds. The
                  examples assume that you invested for the time periods shown
                  and redeemed all of your shares at the end of each period,
                  that each ProFund earned an annual return of 5% over the
                  periods shown, that you reinvested all dividends and
                  distributions, and that gross operating expenses remained
                  constant. Because these examples are hypothetical and for
                  comparison only, your actual costs will be different.

INVESTOR CLASS Expense Examples

                             1 year       3 years         5 years      10 years


  Bull ProFund               $156          $483            $834         $1,824

  UltraBull ProFund          $138          $431            $745         $1,635

  UltraMid-Cap ProFund(1)    $133          $415             N/A            N/A

  UltraSmall-Cap ProFund(1)  $136          $425             N/A            N/A

  UltraOTC ProFund           $135          $421            $729         $1,601

  UltraEurope ProFund        $256          $788          $1,345         $2,866

  UltraJapan ProFund(1)      $129          $403             N/A            N/A

  Bear ProFund               $171          $530            $913         $1,987

  UltraBear ProFund          $146          $452            $782         $1,713

  UltraShort OTC ProFund     $148          $459            $792         $1,735


(1) The Securities and Exchange Commission requires that this ProFund estimate
    expenses for one and three years only.

                                                          Benchmark ProFunds  17
<PAGE>

SERVICE CLASS Expense Examples

                            1 year       3 years         5 years        10 years


  Bull ProFund               $251          $773          $1,321          $2,816

  UltraBull ProFund          $239          $736          $1,260          $2,696

  UltraMid-Cap ProFund(1)    $233          $718             N/A             N/A

  UltraSmall-Cap ProFund(1)  $237          $730             N/A             N/A

  UltraOTC ProFund           $235          $724          $1,240          $2,656

  UltraEurope ProFund        $361        $1,097          $1,855          $3,845

  UltraJapan ProFund(1)      $230          $709             N/A             N/A

  Bear ProFund               $294          $901          $1,533          $3,233

  UltraBear ProFund          $245          $755          $1,291          $2,756

  UltraShort OTC ProFund     $249          $767          $1,311          $2,796


(1) The Securities and Exchange Commission requires that this ProFund estimate
    expenses for one and three years only.



18   Benchmark ProFunds
<PAGE>

                                                              Benchmark ProFunds
                                                                        strategy


         What the Benchmark ProFunds Do

                  Each Benchmark ProFund:

                  o Seeks to provide its shareholders with predictable
                  investment returns approximating its benchmark by investing in
                  securities and other financial instruments, such as futures
                  and options on futures.

                  o Uses a mathematical and quantitative approach.

                  o Pursues its objective regardless of market conditions,
                  trends or direction.

                  o Seeks to provide correlation with its benchmarks on a daily
                  basis.


         What the Benchmark ProFunds Do Not Do

                  ProFund Advisors does not:

                  o Conduct conventional stock research or analysis or forecast
                  stock market movement in managing the Benchmark ProFunds'
                  assets.

                  o Invest the Benchmark ProFunds' assets in stocks or
                  instruments based on ProFund Advisors' view of the fundamental
                  prospects of particular companies.

                  o Adopt defensive positions by investing in cash or other
                  instruments in anticipation of an adverse climate for the
                  ProFunds' benchmark indexes.

                  o Seek to invest to realize dividend income from their
                  investments.


                                                Benchmark ProFunds Strategy   19
<PAGE>

                  In addition, the Benchmark ProFunds do not seek to provide
                  correlation with their benchmark over a period of time other
                  than daily, such as monthly or annually, since mathematical
                  compounding prevents these Benchmark ProFunds from achieving
                  such results.


         Important Concepts

                  o Leverage offers a means of magnifying small market
                  movements, up or down, into large changes in an investment's
                  value.

                  o Futures, or futures contracts, are contracts to pay a fixed
                  price for an agreed-upon amount of commodities or securities,
                  or the cash value of the commodity or securities, on an
                  agreed-upon date.

                  o Option contracts grant one party a right, for a price,
                  either to buy or sell a security or futures contract at a
                  fixed sum during a specified period or on a specified day.

                  o Selling short, or borrowing stock to sell to a third party,
                  is a technique that may be employed by the ProFunds to seek
                  gains when their benchmark index declines. If a ProFund
                  replaces the security to the lender at a price lower than the
                  price at which it borrowed the security plus interest
                  incurred, the ProFund makes a profit on the difference. If the
                  current market price is greater when the time comes to replace
                  the stock, the ProFund will incur a loss on the transaction.

                  o ADRs represent the right to receive securities of foreign
                  issuers deposited in a bank or trust company. ADRs are an
                  alternative to purchasing the underlying securities in their
                  national markets and currencies. Investment in ADRs has
                  certain advantages over direct investment in the underlying
                  foreign securities since:(i) ADRs are U.S. dollar-denominated
                  investments that are easily transferable and for which market
                  quotations are readily available, and (ii) issuers whose
                  securities are represented by ADRs are generally subject to
                  auditing, accounting and financial reporting standards similar
                  to those applied to domestic issuers.

20   Benchmark ProFunds Strategy
<PAGE>

         Portfolio Turnover

                  ProFund Advisors expects a significant portion of the
                  Benchmark ProFunds' assets to come from professional money
                  managers and investors who use ProFunds as part of "market
                  timing" investment strategies. These strategies often call for
                  frequent trading of ProFund shares to take advantage of
                  anticipated changes in market conditions. Although ProFund
                  Advisors believes its accounting methodology should minimize
                  the effect on ProFunds of such trading, market timing trading
                  could increase the rate of ProFunds' portfolio turnover,
                  forcing realization of substantial capital gains and losses
                  and increasing transaction expenses. In addition, while
                  ProFunds does not expect it, large movements of assets into
                  and out of the ProFunds may negatively impact their abilities
                  to achieve their investment objectives or their level of
                  operating expenses.

                                                Benchmark ProFunds Strategy   21
<PAGE>



                  [This page intentionally left blank]





22
<PAGE>

                                                                    Money Market
                                                                         ProFund


         Objective

                  The Money Market ProFund invests its assets in the Cash
                  Management Portfolio (the "Portfolio"), a separate investment
                  company managed by Bankers Trust Company. This structure is
                  sometimes referred to as a "master-feeder" structure. The
                  objective of the Money Market ProFund and the Portfolio are
                  identical: both seek a high level of current income consistent
                  with liquidity and preservation of capital.


         Strategy

                  The Money Market ProFund invests all of its investable assets
                  in the Portfolio. The Portfolio may invest in high-quality,
                  short-term, dollar-denominated money market securities paying
                  a fixed, variable or floating interest rate. These include:

                  o Debt securities issued by U.S. and foreign banks, financial
                  institutions, corporations, or other entities, including
                  certificates of deposit, euro-time deposits, commercial paper
                  (including asset-backed commercial paper), notes, funding
                  agreements and U.S. government securities.

                  o U.S. government securities that are issued or guaranteed by
                  the U.S. Treasury, or by agencies or instrumentalities of the
                  U.S. Government.

                  o Repurchase agreements, which are agreements to buy
                  securities at one price, with a simultaneous agreement to sell
                  back the securities at a future date at an agreed-upon price.


                                                       Money Market ProFund   23
<PAGE>


                  o Asset-backed securities, which are generally participations
                  in a pool of assets whose payment is derived from the payments
                  generated by the underlying assets. Payments on the
                  asset-backed security generally consist of interest and/or
                  principal.

                  Because many of the Portfolio's principal investments are
                  issued or credit-enhanced by banks, the Portfolio may invest
                  more than 25% of its total assets in obligations of domestic
                  banks.

                  The Portfolio may invest in other types of instruments, as
                  described in the Statement of Additional Information.

                  In order to maintain a stable share price, the Portfolio
                  maintains a dollar-weighted average maturity of 90 days or
                  less. Generally, securities in the Portfolio are valued in
                  U.S. dollars and have remaining maturities of 397 days (about
                  13 months) or less on their purchase date. The Portfolio may
                  also invest in longer term securities that have features that
                  reduce their maturities to 397 days or less on their purchase
                  date. The Portfolio buys U.S. government debt obligations,
                  money market instruments and other debt obligations that at
                  the time of purchase:

                  o have received the highest short-term rating from two
                  nationally recognized statistical rating organizations;

                  o have received the highest short-term rating from one rating
                  organization (if only one organization rates the security);

                  o if unrated, are determined to be of similar quality by the
                  Portfolio's investment advisor; or

                  o have no short-term rating, but are rated within the three
                  highest long-term rating categories, or are determined to be
                  of similar quality by the Portfolio's investment advisor.

                  If a security no longer meets the Portfolio's requirements,
                  the investment advisor will attempt to sell that security
                  within a reasonable time, unless selling the security would
                  not be in the Portfolio's best interest.



24  Money Market ProFund
<PAGE>

         Risks

                  Interest Rate Risk
                  Money market instruments, like all debt securities, face the
                  risk that the securities will decline in value because of
                  changes in interest rates. Generally, investments subject to
                  interest rate risk will decrease in value when interest rates
                  rise and increase when interest rates decline.

                  Credit Risk
                  A money market instrument's credit quality depends on the
                  issuer's ability to pay interest on the security and repay the
                  debt: the lower the credit rating, the greater the risk that
                  the security's issuer will default, or fail to meet its
                  payment obligations. The credit risk of a security may also
                  depend on the credit quality of any bank or financial
                  institution that provides credit enhancement for it.

                  Repurchase Agreement Risk
                  A repurchase agreement exposes the Portfolio to the risk that
                  the party that sells the securities defaults on its obligation
                  to repurchase them. In this circumstance, the Portfolio can
                  lose money because:
                  o it may not be able to sell the securities at the agreed-upon
                  time and price; or
                  o the securities lose value before they can be sold.

                  Market Risk
                  Although individual securities may outperform their market,
                  the entire market may decline as a result of rising interest
                  rates, regulatory developments or deteriorating economic
                  conditions.

                  Security Selection Risk
                  While the Portfolio invests in short-term securities, which by
                  nature should be relatively stable investments, the risk
                  remains that the securities selected will not perform as
                  expected. This could cause the Portfolio's returns to lag
                  behind those of similar money market funds.



                                                       Money Market ProFund   25
<PAGE>

                  Concentration Risk
                  Because the Portfolio may invest more than 25% of its total
                  assets in the financial services industry, it may be
                  vulnerable to setbacks in that industry. Banks and other
                  financial service companies are highly dependent on short-term
                  interest rates and can be adversely affected by downturns in
                  the U.S. and foreign economies or changes in banking
                  regulations.

                  Prepayment Risk
                  When a bond issuer, such as an issuer of asset-backed
                  securities, retains the right to pay off a high-yielding bond
                  before it comes due, the Portfolio may have no choice but to
                  reinvest the proceeds at lower interest rates. Thus,
                  prepayment may reduce the Portfolio's income. It may also
                  create a capital gains tax liability, because bond issuers
                  usually pay a premium for the right to pay off bonds early.


         Organizational Structure

                  The Money Market ProFund is a feeder fund that invests all of
                  its assets in a master fund, the Portfolio. The Money Market
                  ProFund and the Portfolio have the same investment objective.

                  The Portfolio may accept investments from other feeder funds.
                  The feeders bear the Portfolio's expenses in proportion to
                  their assets. Each feeder can set its own transaction
                  minimums, fund-specific expenses and other requirements. The
                  Money Market ProFund's Trustees may withdraw its assets from
                  the Portfolio if they believe doing so is in the shareholders'
                  best interests. If the Trustees withdraw the Money Market
                  ProFund's assets, they would then consider whether the Money
                  Market ProFund should hire its own investment advisor and
                  invest its assets directly in appropriate instruments, invest
                  in a different fund, or take other action.

                  An investment in the Money Market ProFund is not a deposit
                  of a bank, nor is it insured or guaranteed by the Federal
                  Deposit Insurance Corporation or any other government agency.
                  While the Money Market ProFund tries to maintain a stable net
                  asset


26   Money Market ProFund
<PAGE>

                  value of $1.00 per share, there is no guarantee that the Money
                  Market ProFund will do so, and you could lose money by
                  investing in this ProFund.


         Considering a Money Market ProFund Investment

                  Investors can take advantage of the Money Market ProFund in at
                  least two ways:

                  oduring periods when investors want to maintain a neutral
                  exposure to the stock market, the income earned from an
                  investment in the Money Market ProFund can keep their capital
                  at work.

                  othe Money Market ProFund can be invested in conjunction with
                  other ProFunds to adjust an investor's target exposure to an
                  index.

                  For instance, an investor who desires to target a daily return
                  of 1.5 times the daily performance of the S&P 500 Index could
                  allocate 75% of his or her investment to the UltraBull ProFund
                  and 25% of the investment to the Money Market ProFund.


         Money Market ProFund's Total Returns and Expenses

                  The bar chart and tables in this section can help you evaluate
                  the potential risk of investing in the Money Market ProFund.
                  The bar chart shows the annual returns for the Investor Class
                  shares of the Money Market ProFund. The first table shows the
                  Money Market ProFund's return for Investor Class shares in
                  1999 and since inception. The second table shows the return
                  for Service Class shares in 1999 and since inception. Of
                  course, how the Money Market ProFund has performed in the past
                  is not necessarily an indication of how it will perform in the
                  future.

            Annual Returns as of December 31 each year

                                                      Money Market ProFund
                 4.48%.............................................   1999
                 4.84%.............................................   1998

                  During the periods covered in the chart above, the highest
                  return in any calendar quarter for the Money Market ProFund's
                  Investor Class shares was Q4 1999 (1.23%), and its lowest
                  quarterly return was Q2 1999 (1.03%).


                                                       Money Market ProFund   27
<PAGE>


Average Annual INVESTOR CLASS Share Returns
as of December 31, 1999

                           One Year         Since Inception       Inception Date

  Money Market ProFund       4.48%               4.69%               11/17/97


                  The 7-day yield (the income yield for the previous seven days
                  projected over a full year) was 5.12% for Money Market
                  ProFund's Investor Class shares as of December 31, 1999. To
                  learn the current 7-day yield, call ProFunds at (888)
                  776-3637.


Average Annual SERVICE CLASS Share Returns
as of December 31, 1999

                           One Year         Since Inception       Inception Date

  Money Market ProFund       3.44%               3.43%               11/17/97


                  The 7-day yield (the income yield for the previous seven days
                  projected over a full year) was 4.12% for Money Market
                  ProFund's Service Class shares as of December 31, 1999. To
                  learn the current 7-day yield, call ProFunds at (888)
                  776-3637.


         Annual Money Market ProFund Operating Expenses

                  The tables on the following page describe the fees and
                  expenses, including the Money Market ProFund's prorated
                  Portfolio expenses, you may pay if you buy and hold shares of
                  the Money Market ProFund. The Money Market ProFund is a
                  "no-load" mutual fund. You pay no sales charge when you buy or
                  sell shares or when you reinvest dividends.


Shareholder Fees - INVESTOR CLASS SHARES and SERVICE CLASS SHARES (paid directly
from your investment)

  Wire Redemption Fee*              $15

* This charge may be waived at the discretion of the ProFunds.

28   Money Market ProFund
<PAGE>

                  Annual Operating Expenses-INVESTOR CLASS Shares
                  (percentage of average daily net assets)

                  Management fees                    0.15%
                  Other expenses                     0.68%
                  Total annual operating expenses    0.83%



                  Annual Operating Expenses-SERVICE CLASS Shares
                  (percentage of average daily net assets)
                  Management fees                    0.15%
                  Service fee(1)                     1.00%
                  Other expenses                     0.68%
                  Total annual operating expenses    1.83%

              (1) ProFunds has adopted a Shareholder Services Plan pursuant to
                  which each ProFund may pay fees of up to 1.00% of the net
                  asset value of the ProFund's Service Class shares to financial
                  intermediaries that agree to provide services to customers
                  holding Service Class shares. For additional information
                  concerning the terms of the Shareholder Services Plan and
                  related service agreements with financial intermediaries, see
                  "Share Prices, Classes and Tax Information -- Classes of
                  Shares."

                  Expense Examples

                  The examples below illustrate the expenses you would have
                  incurred on a $10,000 investment in each class of shares of
                  the Money Market ProFund, and are intended to help you compare
                  the cost of investing in the ProFund compared to other mutual
                  funds. The examples assume that you invested for the time
                  periods shown and redeemed all of your shares at the end of
                  each period, that the Money Market ProFund earned an annual
                  return of 5% over the periods shown, that you reinvested all
                  dividends and distributions, and that gross operating expenses
                  remained constant. Because this example is hypothetical and
                  for comparison only, your actual costs will be different.



                             1 Year      3 Years      5 Years     10 Years

  Investor Class Shares       $85         $265          $460       $1,025

  Service Class Shares       $186         $576          $990       $2,148



                                                       Money Market ProFund   29
<PAGE>




                      [This page intentionally left blank]



30
<PAGE>


                                                     Share Prices, Classes & Tax
                                                                     information


         Calculating the ProFunds' Share Prices

                  Except for the UltraEurope ProFund, each Benchmark ProFund
                  calculates daily share prices on the basis of the net asset
                  value of each class of shares at the close of regular trading
                  on the New York Stock Exchange ("NYSE") (normally, 4:00 p.m.,
                  Eastern time) every day the NYSE and the Chicago Mercantile
                  Exchange are open for business.

                  The UltraEurope ProFund calculates daily share prices on the
                  basis of the net asset value of each class of shares at the
                  latest close of trading on the three exchanges tracked by the
                  PEI: the London Stock Exchange, the Frankfurt Stock Exchange
                  or the Paris Bourse (normally, 2:00 p.m., Eastern time), on
                  each day that all three of these exchanges and the NYSE are
                  open.

                  Purchases and redemptions of shares are effected at the net
                  asset value per share next determined after receipt and
                  acceptance of an order. If portfolio investments of a ProFund
                  are traded in markets on days when the ProFund's principal
                  trading market(s) is closed, the ProFund's net asset value may
                  vary on days when investors cannot purchase or redeem shares.

                  The ProFunds value shares of each class of shares by dividing
                  the market value of the assets attributable to each class,
                  less the liabilities attributable to the class, by the number
                  of the class's outstanding shares. The ProFunds use the
                  following methods for arriving at the current market price of
                  investments held by the Benchmark ProFunds:




                                     Share Prices, Classes & Tax information  31
<PAGE>

                  osecurities listed and traded on exchanges--the last price the
                  stock traded at on a given day, or if there were no sales, the
                  mean between the closing bid and asked prices.

                  osecurities traded over-the-counter--NASDAQ-supplied
                  information on the prevailing bid and asked prices.

                  ofutures contracts and options on indexes and securities--the
                  last sale price prior to the close of regular trading on the
                  NYSE (for all Benchmark ProFunds except UltraEurope ProFund).

                  ofutures prices used to calculate net asset values for the
                  UltraEurope ProFund will be the last transaction prices for
                  the respective futures contracts that occur immediately prior
                  to the close of the underlying stock exchange.

                  ooptions on futures contracts--priced at fair value determined
                  with reference to established future exchanges.

                  obonds and convertible bonds generally are valued using a
                  third-party pricing system.

                  oshort-term debt securities are valued at amortized cost,
                  which approximates market value.

                  othe foreign exchange rates used to calculate the net asset
                  values for the UltraEurope ProFund will be the mean of the bid
                  price and the asked price for the respective foreign currency
                  occurring immediately before the last underlying stock
                  exchange closes.

                  When price quotes are not readily available, securities and
                  other assets are valued at fair value in good faith under
                  procedures established by, and under the general supervision
                  and responsibility of, the ProFunds' Board of Trustees. This
                  procedure incurs the unavoidable risk that the valuation may
                  be higher or lower than the securities might actually command
                  if the ProFunds sold them. In the event that a trading halt
                  closes the NYSE or a futures exchange early, portfolio
                  investments may be valued at fair value, or in a manner that
                  is different from the discussion above. See the Statement of
                  Additional Information for more details.

                  The New York Stock Exchange and the Chicago Mercantile
                  Exchange, a leading market for futures and options, are open
                  every week, Monday through Friday, except when the following
                  holidays are celebrated: New Year's Day, Martin Luther King,
                  Jr. Day (the third Monday in January), Presidents' Day (the
                  third Monday in February), Good Friday, Memorial Day (the last
                  Monday in May), July 4th, Labor Day (the first Monday in
                  September),


32   Share Prices, Classes & Tax information
<PAGE>

                  Thanksgiving Day (the fourth Thursday in November) and
                  Christmas Day. Either or both of these Exchanges may close
                  early on the business day before each of these holidays.
                  Either or both of these Exchanges also may close early on the
                  day after Thanksgiving Day and the day before Christmas
                  holiday.

                  The London Stock Exchange, Frankfurt Stock Exchange or Paris
                  Bourse closes for the following holidays in 2000: May Day (May
                  1), Spring Bank Holiday (May 29), Pentecost Monday (June 12),
                  Bastille Day (July 14), Summer Bank Holiday (August 28),
                  Christmas Day, and Boxing Day (observed December 26). Holidays
                  scheduled for 2001 include: New Year's Day (January 1), Good
                  Friday (April 13) and Easter Monday (April 16). Please note
                  that holiday schedules are subject to change without notice.

         Calculating the Money Market ProFund's Share Price

                  The Money Market ProFund calculates daily share prices on the
                  basis of the net asset value of each class of shares at the
                  close of regular trading on the NYSE (normally, 4:00 p.m.,
                  Eastern time) every day the NYSE is open for business except
                  for two additional bank holidays, Columbus Day and Veterans'
                  Day. Purchases and redemptions of shares are effected at the
                  net asset value per share next determined after receipt and
                  acceptance of an order. On the day before certain holidays are
                  observed, the bond markets or other primary trading markets
                  for the Portfolio may close early. They may also close early
                  on the day after Thanksgiving and the day before Christmas
                  Eve. If the Bond Market Association recommends an early close
                  of the bond markets, the Money Market ProFund may also close
                  early. The Money Market ProFund will cease taking purchase
                  orders at such times. The Money Market ProFund's net asset
                  value per share for each class of shares will normally be
                  $1.00, although Bankers Trust Company cannot guarantee that
                  this will always be the case. The Portfolio uses the amortized
                  cost method to account for any premiums or discounts above or
                  below the face value of any securities it buys. This method
                  does not reflect daily fluctuations in market value.



                                     Share Prices, Classes & Tax information  33
<PAGE>

         Dividends and Distributions

                  Each of the Benchmark ProFunds intends to distribute to its
                  shareholders every year all of the year's net investment
                  income and net capital gains. Each Benchmark ProFund will
                  reinvest these distributions in additional shares unless a
                  shareholder has written to request a direct cash distribution.

                  The Money Market ProFund declares dividends from its net
                  income daily and pays the dividends on a monthly basis. The
                  Money Market ProFund will pay annually any long-term capital
                  gains as well as any short-term capital gains that it did not
                  distribute during the year, but it reserves the right to
                  include in the daily dividend any short-term capital gains on
                  securities that it sells.

                  The Money Market ProFund may revise these policies, postpone
                  the payment of dividends and interest or take other actions in
                  order to maintain a constant net asset value of $1.00 per
                  share.

         Tax Consequences

                  A ProFund does not ordinarily pay income tax on its net
                  investment income (which includes short-term capital gains)
                  and net capital gains that it distributes to shareholders, but
                  individual shareholders pay tax on the dividends and
                  distributions they receive. Shareholders will generally be
                  taxed regardless of how long they have held ProFund shares and
                  regardless of whether they receive cash or choose to have
                  distributions and dividends reinvested. Distributions and
                  dividends generally will be taxable as either ordinary income
                  or long-term capital gains. For example, if a ProFund
                  designates a particular distribution as a long-term capital
                  gains distribution, it will be taxable to shareholders at
                  their long-term capital gains rate. Dividends and
                  distributions may also be subject to state and local taxes.

                  Every year the ProFunds will send shareholders tax information
                  on the dividends and distributions for the previous year.

                  If shareholders sell or redeem their ProFund shares, they may
                  have a capital gain or loss, which will be long-term or
                  short-term, generally depending upon how long they have held
                  the shares. An exchange of ProFund shares may be treated as a
                  sale.




34   Share Prices, Classes & Tax information
<PAGE>

                  The tax consequences for tax deferred retirement accounts or
                  non-taxable shareholders will be different.

                  Please keep in mind:

                  oWhether a distribution by a ProFund is taxable to
                  shareholders as ordinary income or at the lower capital gains
                  rate depends on whether it is long-term capital gains of the
                  ProFund, not on how long an investor has owned shares of the
                  ProFund.

                  oDividends and distributions declared by a ProFund in October,
                  November or December of one year and paid in January of the
                  next year may be taxable in the year the ProFund declared
                  them.

                  oAs with all mutual funds, a ProFund may be required to
                  withhold U.S. federal income tax at the rate of 31% of all
                  taxable distributions and redemption proceeds, payable to
                  shareholders who fail to provide the ProFund with correct
                  taxpayer identification numbers or to make required
                  certifications, or who have been notified by the IRS that they
                  are subject to backup withholding. Backup withholding is not
                  an additional tax; rather, it is a way in which the IRS
                  ensures it will collect taxes otherwise due. Any amounts
                  withheld may be credited against the shareholder's U.S.
                  federal income tax liability. You also may be subject to a $50
                  fee to reimburse the ProFunds for any penalty that the IRS may
                  impose.

                  Please see the Statement of Additional Information for more
                  information. Because each investor's tax circumstances are
                  unique and because the tax laws are subject to change, ProFund
                  Advisors recommends that shareholders consult their tax
                  advisors about federal, state, local and foreign tax
                  consequences of investment in the ProFunds.


         Classes of Shares

                  Investors in any of the ProFunds can purchase either Investor
                  Class shares directly, or Service Class shares through an
                  authorized firm, such as a registered investment advisor, a
                  bank or a trust company. Under a shareholder services plan for
                  Service Class shares, each ProFund may pay an authorized firm
                  up to 1.00% on an annualized basis of average daily net assets
                  attributable to its customers who are Service Class
                  shareholders.

                                     Share Prices, Classes & Tax information  35
<PAGE>



                  For this fee, the authorized firms may provide a variety of
                  services, such as:

                  o receiving and processing shareholder orders,

                  o performing the accounting for the shareholder's account,

                  o maintaining retirement plan accounts,

                  o answering questions and handling correspondence for
                    individual accounts,

                  o acting as the sole shareholder of record for individual
                    shareholders,

                  o issuing shareholder reports and transaction confirmations,

                  o executing daily investment "sweep" functions, and

                  o furnishing investment advisory services.

                  Service class shareholders pay all fees and expenses
                  applicable to service class shares.

                  Because ProFunds adopted the shareholder services plan to
                  compensate authorized firms for providing the types of
                  services described above, ProFunds believes the shareholder
                  services plan is not covered by Rule 12b-1 under the
                  Investment Company Act of 1940, which relates to payment of
                  distribution fees. ProFunds does, however, follow the
                  procedural requirements of Rule 12b-1 in connection with the
                  implementation and administration of the shareholder services
                  plan.

                  An authorized firm generally represents in a service agreement
                  used in connection with the shareholder services plan that all
                  compensation payable to the authorized firm from its customers
                  in connection with the investment of their assets in ProFunds
                  will be disclosed by the authorized firm to its customers. It
                  also generally provides that all such compensation will be
                  authorized by the authorized firm's customers.

                  ProFunds does not monitor the actual services being performed
                  by an authorized firm under the plan and related service
                  agreement. ProFunds also does not monitor the reasonableness
                  of the total compensation that an authorized firm may receive,
                  including any service fee that an authorized firm may receive
                  from ProFunds and any compensation the authorized firm may
                  receive directly from its clients.




36  Share Prices, Classes & Tax information
<PAGE>

                                                            Shareholder Services
                                                                           guide


         Contacting ProFunds
                  By telephone:        (888) 776-3637 or (614) 470-8122--
                                         for investors
                                       (888) 776-5717--a phone line dedicated
                                         for use by financial professionals only

                  By mail:             ProFunds
                                       P.O. Box 182800
                                       Columbus, OH 43218-2800

                  By overnight mail:   ProFunds
                                       c/o BISYS Fund Services
                                       3435 Stelzer Road
                                       Columbus, OH 43219


         Minimum Investments

                  o$5,000 for discretionary accounts controlled by a financial
                  professional.

                  o$15,000 for self-directed accounts controlled directly by
                  investors.

                  These minimums apply to all accounts, including retirement
                  plans, and apply to the total value of an investor's initial
                  ProFunds investment. ProFunds reserves the right to reject or
                  refuse, at its discretion, any order for the purchase of a
                  ProFund's shares in whole or in part.



                                                 Shareholder Services guide   37
<PAGE>



         Opening Your ProFunds Account

                  By mail: Send a completed application, along with a check
                  payable to "ProFunds," to the aforementioned address. Cash,
                  credit cards and credit card checks are not accepted. Please
                  contact ProFunds in advance if you wish to send third party
                  checks. All purchases must be made in U.S. dollars through a
                  U.S. bank.

                  By wire transfer: First, complete an application and fax it to
                  ProFunds at (800) 782-4797 (toll-free) or (614) 470-8718.
                  Next, call ProFunds at (888) 776-3637 (toll-free) or (614)
                  470-8122 to a) confirm receipt of the faxed application, b)
                  request your new account number, c) inform ProFunds of the
                  amount to be wired and d) receive a confirmation number for
                  your purchase order. After receiving your confirmation number,
                  instruct your bank to transfer money by wire to:

                    UMB Bank, N.A.
                    Kansas City, MO
                    Routing/ABA #:101000695
                    ProFunds DDA #9870857952

                    For further credit to: Your name, the name of the
                    ProFund(s), and your ProFunds account number

                    Confirmation number: The confirmation number given to you by
                    the ProFunds representative

                  After faxing a copy of the completed application, send the
                  original to ProFunds via mail or overnight delivery. The
                  addresses are shown above under "Contacting ProFunds-By mail."

                  Instructions, written or telephonic, given to ProFunds for
                  wire transfer requests do not constitute a purchase order
                  until the wire transfer has been received by ProFunds. The
                  ProFunds are not liable for any loss incurred due to a wire
                  transfer not having been received.

                  Please note that your bank may charge a fee to send or receive
                  wires.


38  Shareholder Services guide
<PAGE>

                  Establishing Accounts For Tax-Sheltered Retirement Plans

                  The ProFunds sponsor Individual Retirement Accounts ("IRAs")
                  that enable individual investors to set up their own
                  retirement savings programs. ProFund Advisors charges an
                  annual fee of $15 per social security number for all types of
                  IRAs to pay for the extra maintenance and tax reporting that
                  these plans require. Investors in other types of retirement
                  plans also may invest in the ProFunds. For additional
                  information and an application, contact ProFunds directly by
                  phone or at the above address.


         Purchasing Additional ProFunds Shares

                  By mail: Send a check payable to "ProFunds", noting the
                  ProFund and account number, to the aforementioned address.
                  Cash, credit cards, and credit card checks are not accepted.
                  Please contact ProFunds in advance if you wish to send third
                  party checks. All purchases need to be made in U.S. dollars
                  through a U.S. bank.

                  By wire transfer: Call ProFunds to inform us of the amount you
                  will be wiring and receive a confirmation number.

                  You can then instruct your bank to transfer your funds to:

                    UMB Bank, N.A.
                    Kansas City, MO
                    Routing/ABA #:101000695
                    ProFunds DDA #9870857952

                    For further credit to: Your name, the name of the
                    ProFund(s), and your ProFunds account number.

                    Confirmation number: The confirmation number given to you by
                    the ProFunds representative.

                  Instructions, written or telephonic, given to ProFunds for
                  wire transfer requests do not constitute a purchase order
                  until the wire transfer has been received by ProFunds.
                  ProFunds is not liable for any loss incurred due to a wire
                  transfer not having been received.

                  Please note that your bank may charge a fee to send or receive
                  wires.




                                                 Shareholder Services guide   39
<PAGE>

                  Please keep in mind when purchasing shares:

                  o The minimum subsequent purchase amount is $100.

                  o ProFunds prices shares you purchase at the price per share
                  next computed after we receive your purchase order in good
                  order. To be in good order, a purchase order must include a
                  properly completed application and wire, check or other form
                  of payment.

                  o A wire order is considered in good order only if (i) you
                  have called ProFunds under the procedures described above and
                  (ii) ProFunds receives and accepts your wire. ProFunds only
                  accepts wires during the times it processes wires: between
                  8:00 a.m. and 3:30 p.m., Eastern time for all ProFunds except
                  that UltraEurope ProFund does not receive and process wires
                  from 11:00 a.m. through 2:00 p.m., Eastern time. Wires
                  received after ProFunds' wire processing times will be
                  processed as of the next time that orders are processed. If
                  the primary exchange or market on which a ProFund transacts
                  business closes early, the above cut-off time will be 25
                  minutes prior to the close of such exchange or market.

                  o If your purchase is cancelled, you will be responsible for
                  any losses that may result from any decline in the value of
                  the cancelled purchase. ProFunds (or its agents) have the
                  authority to redeem shares in your account(s) to cover any
                  losses due to fluctuations in share price. Any profit on a
                  cancelled transaction will accrue to the ProFunds.

                  o Securities brokers and dealers have the responsibility of
                  transmitting your orders promptly. Brokers and dealers may
                  charge transaction fees on the purchase and/or sale of
                  ProFunds shares.

40 Shareholder Services Guide
<PAGE>
            Exchanges

                  Shareholders can exchange shares of either class of any
                  ProFund for shares of either class of another ProFund,
                  including ProFunds not described in this prospectus, free of
                  charge. ProFunds can only honor exchanges between accounts
                  registered in the same name, and having the same address and
                  taxpayer identification number.

                  ProFunds accepts exchange orders by phone, in writing or
                  through the Internet, except that the ProFunds do not accept
                  exchange orders through the Internet for the UltraEurope
                  ProFund. You will need to specify the number of shares, or the
                  percentage or dollar value of the shares you wish to exchange,
                  and the ProFunds (and classes of shares) involved in the
                  transaction.

                  By telephone: Exchange orders between ProFunds can be accepted
                  by phone between 8:00 a.m. and 3:50 p.m. and between 4:30 p.m.
                  and 9:00 p.m., Eastern time, with the exception that ProFunds
                  does not accept exchange orders involving the UltraEurope
                  ProFund between 11:00 a.m. and 2:00 p.m., Eastern time. If the
                  primary exchange or market (generally, the CME) on which a
                  ProFund transacts business closes early, the above cut-off
                  time will be 25 minutes prior to the close of such exchange or
                  market.

                  By Internet: Shareholders may transact on-line exchanges of
                  shares of the ProFunds, except exchanges of shares of the
                  UltraEurope ProFund, at ProFunds' website (www.profunds.com).
                  To access this service through the website, click on the
                  "Trade/ Access Account" Icon and you will be prompted to enter
                  your Social Security Number. Follow the instructions to
                  establish your Personal Identification Number (PIN) which will
                  allow you to execute exchanges between ProFunds and access
                  ProFunds account information. Internet exchange orders between
                  the ProFunds can be accepted between 8:00 a.m. and 3:55 p.m.
                  and between 4:30 p.m. and 9:00 p.m., Eastern time. If the
                  primary

                                                Shareholder Services Guide    41
<PAGE>

                  exchange or market on which a ProFund transacts business
                  closes early, the above cut off time will be 25 minutes prior
                  to the close of such exchange or market.

                  Internet exchange transactions are extremely convenient, but
                  are not free from risk. To ensure that all Internet
                  transactions are safe, secure and as risk-free as possible,
                  ProFunds has instituted certain safeguards and procedures for
                  determining the identity of website users. As a result,
                  neither ProFunds nor its transfer agent will be responsible
                  for any loss, liability, cost or expense for following
                  Internet instructions they reasonably believe to be genuine.
                  If you or your intermediary make exchange requests by the
                  Internet, you will generally bear the risk of loss.

                  The ProFunds may terminate the ability to exchange ProFund
                  shares on its website at any time, in which case you may
                  continue to exchange shares by phone or in writing.

                  Please keep in mind when exchanging shares:

                  o An exchange actually is a redemption (sale) of shares of one
                  ProFund and a purchase of shares of another ProFund.

                  o If both ProFunds involved in the exchange have their
                  respective net asset values calculated at the same time then
                  both the sale and the buy will occur simultaneously.

                    For example, assume you were to exchange Money Market
                    ProFund for UltraOTC ProFund and the order was placed before
                    3:50 p.m., Eastern time, on any business day. The net asset
                    values for both ProFunds involved in the transaction are
                    computed at the same time. Therefore, both the price of the
                    shares sold out of Money Market ProFund and the shares
                    purchased into UltraOTC ProFund would be determined
                    simultaneously when the net asset values are next computed,
                    normally 4:00 p.m., Eastern time.

                  o If the exchange involves ProFunds that calculate their net
                  asset values at different times, you will receive the net
                  asset value next computed for the redemption transaction. The
                  purchase transaction will receive the price next determined
                  after the redemption transaction is completed, with one
                  exception as described below. The proceeds from the redemption
                  transaction

42   Shareholder Services Guide
<PAGE>
                  will not be invested during the intervening period and will
                  not earn interest during that time.

                    For example, assume you were to exchange UltraBull ProFund
                    for UltraEurope ProFund and the order was placed prior to
                    3:50 p.m., Eastern time, on a business day of the UltraBull
                    ProFund. The net asset values of UltraEurope and UltraBull
                    ProFunds are not determined at the same time. As a result,
                    the components of the exchange would be valued at two
                    different times. First, the sale from UltraBull ProFund
                    would be priced using the next computed net asset value,
                    which would be determined normally at 4:00 p.m., Eastern
                    time, on such day. Second, the buy into UltraEurope ProFund
                    would receive the net asset value of UltraEurope ProFund
                    next determined after the redemption from UltraBull ProFund.
                    That determination of the net asset value of UltraEurope
                    ProFund would normally take place at 2:00 p.m., Eastern
                    time, on the next business day of UltraEurope ProFund.

                  An exception to the above exchange transaction policies covers
                  exchange requests from the Money Market ProFund to the
                  UltraEurope ProFund, received after 4:00 p.m. on one business
                  day and prior to 11:00 a.m. on the next business day. In such
                  an exchange, you will receive the price next computed after
                  the exchange request is made for both the redemption and the
                  purchase transactions involved in the exchange. You will be
                  responsible for any losses if sufficient redemption proceeds
                  are not available to pay the purchase price of shares
                  purchased.

                  o Please note that during certain periods, it may take several
                  days for exchanges to be completed due to holidays.

                  o The minimum exchange for self-directed accounts is $1,000
                  or, if less, the account's current value.

                  o You may exchange, on a regular basis, shares of the Money
                  Market ProFund for shares of other ProFunds through an
                  Automatic Exchange Plan. For more information on this option,
                  please call ProFunds at 888-776-3637.

                  o Before executing an exchange between the Profunds described
                  in this prospectus for shares of another ProFund, a
                  shareholder must first review the prospectus related to the
                  other ProFund. Such prospectus may be obtained by contacting
                  the ProFunds by letter or telephone at the address or phone
                  number noted on the back cover of this prospectus, or by
                  visiting the ProFunds' website (www.profunds.com).

                                                Shareholder Services Guide    43
<PAGE>
         Redeeming ProFund Shares

                  You can redeem all or part of your shares at the price next
                  determined after we receive your request. ProFunds other than
                  UltraEurope ProFund only accept redemption orders by phone
                  between 8:00 a.m. and 3:50 p.m. and between 4:30 p.m. and 9:00
                  p.m., Eastern time. UltraEurope ProFund accepts telephone
                  redemption orders only between 8:00 a.m. and 11:00 a.m. and
                  2:00 p.m. and 9:00 p.m., Eastern time. ProFunds may not
                  receive or accept phone redemption orders at any other time.
                  If the primary exchange or market on which a ProFund (other
                  than the UltraEurope ProFund) transacts business closes early,
                  the above cut-off time will be 25 minutes prior to the close
                  of such exchange or market.

                  Written Redemptions

                  To redeem all or part of your shares in writing, your request
                  needs to include the following information:

                  o the name of the ProFund(s),

                  o the account number(s),

                  o the amount of money or number of shares being redeemed,

                  o the name(s) of the account owners,

                  o the signature(s) of all registered account owners, and

                  o your daytime telephone number.

                  Wire Redemptions

                  If your account is authorized for wire redemption, your
                  proceeds will be wired directly into the bank account you have
                  designated. The ProFunds charge a $15 service fee for a wire
                  transfer of redemption proceeds, and your bank may charge an
                  additional fee to receive the wire. If you would like to
                  establish this option on an existing account, please call
                  ProFunds to request the appropriate form. Wire redemptions are
                  not available for retirement accounts.


44   Shareholder Services Guide
<PAGE>

                  Signature Guarantee

                  Certain redemption requests must include a signature
                  guarantee. Your request needs to be in writing and include a
                  signature guarantee if any of the following situations apply:

                  o Your account registration or address has changed within the
                  last 30 calendar days.

                  o The check is being mailed to a different address than the
                  one on your account.

                  o The check or wire is being made payable to someone other
                  than the account owner.

                  o The redemption proceeds are being transferred to an account
                  with a different registration.

                  o You wish to redeem more than $100,000.

                  o You are adding or changing wire instructions on your
                  account.

                  o Other unusual situations as determined by ProFund's transfer
                  agent.

                  Signature guarantees may be provided by an eligible guarantor
                  institution such as a commercial bank, an NASD member firm
                  such as a stock broker, a savings association or a national
                  securities exchange.

                  Please keep in mind when redeeming shares:

                  o Redemptions from self-directed accounts must be for at least
                  $1,000 or, if less, for the account's entire current value.
                  The remaining balance needs to be above the applicable minimum
                  investment.

                  o The ProFunds normally remit redemption proceeds within seven
                  days of redemption. For redemption of shares purchased by
                  check or Automatic Investment, ProFunds may wait up to
                  15 days before sending redemption proceeds to assure that its
                  transfer agent has collected the purchase payment.

                  o ProFunds will remit payment of telephone redemptions only to
                  the address or bank of record on the account application. You
                  must submit, in writing, a request for payment to any other
                  address, along with a signature guarantee from a financial
                  service organization.

                                                Shareholder Services Guide    45
<PAGE>

                  o To redeem shares in a retirement account, your request needs
                  to be in writing, except for exchanges to other ProFunds,
                  which can be requested by phone or in writing. Call the
                  ProFunds to request a retirement distribution form.

                  o Involuntary Redemptions: ProFunds reserves the right to
                  redeem involuntarily an investor's account, including a
                  retirement account, which falls below the applicable minimum
                  investment in total value in the ProFunds due to redemption.
                  In addition, both a request for a partial redemption by an
                  investor whose account balance is below the minimum investment
                  and a request for partial redemption by an investor that would
                  bring the account below the minimum investment will be treated
                  as a request by the investor for a complete redemption of the
                  account.

                  o Redemption proceeds from the UltraEurope ProFund are made
                  within seven business days after the business date of the
                  redemption. The business date of these redemptions may be the
                  business day following the day your redemption request reaches
                  ProFunds.

                  o Money Market ProFund shares begin accruing dividends on the
                  day ProFund's transfer agent, BISYS Fund Services, receives a
                  purchase order and payment in the form of a Federal funds
                  wire. Purchases by check begin earning dividends the business
                  day following the business day the check is received. They
                  continue to earn dividends until the business day that BISYS
                  Fund Services has processed the redemption order.

                  Suspension of Redemptions

                  Your right of redemption may be suspended, or the date of
                  payment postponed: (i) for any period during which the NYSE or
                  the Federal Reserve Bank of New York is closed (other than
                  customary weekend or holiday closings) or trading on the NYSE,
                  or other securities exchanges or markets as appropriate, is
                  restricted, as determined by the Securities and Exchange
                  Commission ("SEC"); (ii) for any period during which an
                  emergency exists, as determined by the SEC, so that disposal
                  of a ProFund's investments or the determination of its net
                  asset value


46   Shareholder Services Guide
<PAGE>

                  is not reasonably practicable; or (iii) for such other periods
                  as the SEC, by order, may permit for protection of ProFunds'
                  investors.

                  Draft Checks

                  You may elect to redeem shares of the Money Market ProFund by
                  draft check ($500 minimum) made payable to the order of any
                  person or institution. If you are interested in this option,
                  you must submit a completed signature card to ProFunds. You
                  will then be supplied with draft checks that are drawn on the
                  Money Market ProFund's account. There is a $25 fee for stop
                  payment requests on draft checks. This option is not available
                  to Individual Retirement Account shareholders.


         Automatic Investment and Redemption Plans

                  Shareholders may buy and redeem shares automatically on a
                  monthly, bimonthly, quarterly or annual basis. The minimum
                  automatic purchase is $100 and the minimum automatic
                  redemption is $500. These minimums are waived for IRA
                  shareholders 70 1/2 years of age or older.

         About Telephone Transactions

                  o It may be difficult to reach ProFunds by telephone during
                  periods of heavy market activity or other times. If you are
                  unable to reach us by telephone, consider sending written
                  instructions.

                  o You may initiate numerous transactions by telephone. Please
                  note, however, that the ProFunds and their agents will not be
                  responsible for losses resulting from unauthorized
                  transactions when procedures designed to verify the identity
                  of the caller are followed.

                                                Shareholder Services Guide    47
<PAGE>





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48
<PAGE>
                                                                        ProFunds
                                                                      management



         Board of Trustees and Officers

                  The ProFunds' Board of Trustees is responsible for the general
                  supervision of the ProFunds. The ProFunds' officers are
                  responsible for day-to-day operations of the ProFunds.


         Investment Advisors

                  ProFund Advisors LLC
                  ProFund Advisors LLC, located at 7900 Wisconsin Avenue, Suite
                  300, Bethesda, Maryland 20814, serves as the investment
                  advisor to all of the ProFunds except for the Money Market
                  ProFund, providing investment advice and management services.
                  ProFund Advisors oversees the investment and reinvestment of
                  the assets in each Benchmark ProFund. It is entitled to
                  receive fees equal to 0.75% of the average daily net assets of
                  each Benchmark ProFund, except the UltraEurope ProFund and
                  UltraJapan ProFund, for which it is entitled to receive fees
                  equal to 0.90% of the average daily net assets of each such
                  ProFund. ProFund Advisors bears the costs of providing
                  advisory services. During the year ended December 31, 1999
                  each operating Benchmark ProFund (which excludes the
                  UltraMid-Cap, UltraSmall-Cap and UltraJapan ProFunds) paid
                  ProFund Advisors fees in the following amounts:

Fees Paid (as a percentage of average daily net assets)


  Bull ProFund             0.69%      Bear ProFund               0.58%
  UltraBull ProFund        0.75%      UltraBear ProFund          0.75%

  UltraOTC ProFund         0.75%      UltraShort OTC ProFund     0.75%

  UltraEurope ProFund      0.00%

                                                      ProFunds Management    49
<PAGE>

                  Michael L. Sapir, Chairman and Chief Executive Officer of
                  ProFund Advisors LLC, formerly served as senior vice president
                  of Padco Advisors, Inc., which advised Rydex(R) Funds. In
                  addition, Mr. Sapir practiced law, primarily representing
                  financial institutions for over 13 years, most recently as a
                  partner in a Washington-based law firm. He holds degrees from
                  Georgetown University Law Center (J.D.) and University of
                  Miami (M.B.A. and B.A.).

                  Louis M. Mayberg, President of ProFund Advisors LLC,
                  co-founded National Capital Companies, L.L.C., an investment
                  bank specializing in financial service companies mergers and
                  acquisitions and equity underwritings in 1986, and managed its
                  financial services hedge fund. He holds a Bachelor of Business
                  Administration degree with a major in Finance from George
                  Washington University.

                  William E. Seale, Ph.D., Director of Portfolio for ProFund
                  Advisors LLC, has more than 30 years of experience in the
                  financial markets. His background includes a five-year
                  presidential appointment as a commissioner of the U.S.
                  Commodity Futures Trading Commission and Chairman of the
                  Finance Department at George Washington University. He earned
                  his degrees at University of Kentucky.

                  Each Benchmark ProFund is managed by an investment team
                  chaired by Dr. Seale.

                  Bankers Trust Company

                  The Money Market ProFund seeks to achieve its investment
                  objective by investing all of its assets in a portfolio
                  managed by Bankers Trust Company, with headquarters at 130
                  Liberty Street, New York, NY 10006. Bankers Trust makes the
                  Portfolio's investment decisions and assumes responsibility
                  for the securities the Portfolio owns. It receives a fee equal
                  to 0.15% of the average daily net assets of the Portfolio.

                  As of December 31, 1999, Bankers Trust had total assets
                  of approximately $270 billion under management. Bankers Trust


50   ProFunds Management

<PAGE>
                  Company is dedicated to servicing the needs of corporations,
                  governments, financial institutions and private clients and
                  has invested retirement assets on behalf of the nation's
                  largest corporations for more than 50 years. The scope of the
                  firm's capability is broad--it is a leader in both the active
                  and passive quantitative investment disciplines and maintains
                  a major presence in stock and bond markets worldwide.

         Other Service Providers

                  BISYS Fund Services, located at 3435 Stelzer Road, Suite 1000,
                  Columbus, Ohio 43219, acts as the administrator to the
                  ProFunds, providing operations, compliance and administrative
                  services. Each ProFund pays BISYS a fee, on a sliding scale,
                  for its administrative services. For average daily net assets
                  up to $300 million, the fee is 0.15% of the assets, and it
                  declines to 0.05% for average daily net assets of $1 billion
                  or more.

                  ProFund Advisors also performs client support and
                  administrative services for the ProFunds. ProFund Advisors is
                  entitled to receive fees equal to 0.15% of average daily net
                  assets of each Benchmark ProFund for such services. During the
                  year ended December 31, 1999, each operating Benchmark ProFund
                  (which excludes the UltraMid-Cap, UltraSmall-Cap and
                  UltraJapan ProFunds) paid ProFund Advisors fees in the
                  following amounts:

Fees Paid (as a percentage of average daily net assets)


  Bull ProFund            0.08%      Bear ProFund                  0.02%
  UltraBull ProFund       0.15%      UltraBear ProFund             0.15%

  UltraOTC ProFund        0.15%      UltraShort OTC ProFund        0.15%

  UltraEurope ProFund     0.00%

                  During the year ended December 31, 1999, ProFund Advisors
                  received fees equal to 0.35% of average daily net assets from
                  the Money Market ProFund for client support and administrative
                  services, and for feeder fund management, administration and
                  reporting with respect to the Money Market ProFund's
                  relationship to the Portfolio.

                                                      ProFunds Management    51
<PAGE>

         Other Information

                  "Standard & Poor's(R)," "S&P(R)," "S&P 500(R)," "Standard &
                  Poor's 500(R),""500(R)", and "S&P MidCap 400 Index" are
                  trademarks of The McGraw-Hill Companies, Inc. and have been
                  licensed for use by ProFunds. "Russell 2000(R) Index" is a
                  trademark of the FrankRussell Company. "NASDAQ 100 Index" is a
                  trademark of the NASDAQ Stock Markets, Inc. ("NASDAQ"). The
                  ProFunds are not sponsored, endorsed, sold or promoted by
                  Standard & Poor's or NASDAQ or the Frank Russell Company and
                  neither Standard & Poor's nor NASDAQ nor the Frank Russell
                  Company makes any representation regarding the advisability of
                  investing in ProFunds.

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

                  (Please see the Statement of Additional Information which sets
                  forth certain additional disclaimers and limitations of
                  liabilities on behalf of S&P).

52   ProFunds Management

<PAGE>
                                                                      Financial

                                                                      highlights

                  The following tables provide a picture of the performance of
                  each share class of the ProFunds for each year ended December
                  31 since inception. No information is presented for the
                  UltraMid-Cap ProFund, UltraSmall-Cap ProFund and UltraJapan
                  ProFund as these ProFunds were not in existence as of December
                  31, 1999. The total return information selected represents the
                  rate of return and the per share operating performance that an
                  investor would have earned on an investment in a ProFund,
                  assuming reinvestment of all dividends and distributions. This
                  information has been audited by PricewaterhouseCoopers LLP,
                  independent accountants, whose report on the financial
                  statements of the ProFunds appears in the ProFunds' annual
                  report for the fiscal year ended December 31, 1999. The annual
                  report is available free of charge by phoning 888-776-3637.

                                                     Financial Highlights    53

<PAGE>
Bull ProFund

Financial Highlights
For a share of beneficial interest outstanding
<TABLE>
<CAPTION>
                                               Investor Class                               Service Class
                                     For the       For the      For the period    For the      For the      For the period
                                     year          year         from Dec. 2,      year         year         from Dec. 2,
                                     Ended         Ended        1997(a)           Ended        Ended        1997(a)
                                     Dec. 31,      Dec. 31,     to Dec. 31,       Dec. 31,     Dec. 31,     to Dec. 31,
                                     1999          1998         1997              1999         1998         1997
                                     ----------------------------------         ----------------------------------------
<S>                                    <C>            <C>       <C>                  <C>         <C>            <C>
  Net asset value,                   $62.48         $49.45       $50.00            $62.12         $49.45      $50.00
  beginning of period
------------------------------------------------------------------------------------------------------------------------
  Net investment income                0.34           1.63(d)      0.10              0.11           1.08(d)       --
------------------------------------------------------------------------------------------------------------------------
  Net realized and unrealized         10.41          11.49        (0.65)             9.79          11.64       (0.55)
  gain/(loss) on investment          ------         ------       ------             -----         ------      ------
  transactions and futures
  contracts
------------------------------------------------------------------------------------------------------------------------
  Total income/(loss) from            10.75          13.12        (0.55)             9.90          12.72       (0.55)
  investment operations
------------------------------------------------------------------------------------------------------------------------
  Distribution to Shareholders
  from:
  Net investment income               (0.02)         (0.04)          --                --             --(e)       --
------------------------------------------------------------------------------------------------------------------------
  Net realized gains on               (0.01)         (0.05)          --             (0.01)         (0.05)         --
  investment transactions            ------         ------       ------             -----         ------      ------
  and futures contracts
------------------------------------------------------------------------------------------------------------------------
  Total distributions                 (0.03)         (0.09)          --             (0.01)         (0.05)         --
------------------------------------------------------------------------------------------------------------------------
  Net asset value, end of
  period                             $73.20         $62.48       $49.45            $72.01         $62.12      $49.45
                                     ======         ======       ======            ======         ======      ======
------------------------------------------------------------------------------------------------------------------------
  Total Return                        17.18%         26.57%       (1.10)%(b)        15.97%         25.68%      (1.10)%(b)
------------------------------------------------------------------------------------------------------------------------
  Ratios/Supplemental Data:
  Net assets, end of
  period                       $116,208,049     $7,543,922      $46,281       $30,879,600       $589,547         $10
------------------------------------------------------------------------------------------------------------------------
  Ratio of expenses to                 1.40%          1.63%        1.33%(c)          2.35%          2.67%       1.33%(c)
  average net assets
------------------------------------------------------------------------------------------------------------------------
  Ratio of net investment              1.96%          2.84%        2.97%(c)          0.70%          1.89%       0.00%(c)
  income to average
  net assets
------------------------------------------------------------------------------------------------------------------------
  Ratio of expenses to average net     1.53%          2.40%      423.48%(c)          2.48%          3.30%     424.48%(c)
  assets (before reimbursements)*
------------------------------------------------------------------------------------------------------------------------
  Portfolio Turnover(f)                1288%            --           --              1288%            --          --

 *  During the period, certain fees were voluntarily reduced and/or reimbursed.
    If such voluntary fee reductions and/or reimbursements had not occurred, the
    ratio would have been as indicated.
(a) Commencement of operations.
(b) Not annualized.
(c) Annualized.
(d) Per share net investment income has been calculated using the daily average
    shares method.
(e) Distribution per share was less than $0.005
(f) Portfolio turnover is calculated on the basis of the fund as a whole without
    distinguishing between the classes of shares issued.
</TABLE>
54   Financial Highlights
<PAGE>
UltraBull ProFund

Financial Highlights
For a share of beneficial interest outstanding
<TABLE>
<CAPTION>
                                                Investor Class                                 Service Class
                                    For the         For the        For the period  For the        For the     For the period
                                    year            year           from Nov. 28,   year           year        from Nov. 28,
                                    ended           ended          1997(a)         ended          ended       1997(a)
                                    Dec. 31,        Dec. 31,       to Dec. 31,     Dec. 31,       Dec. 31,    to Dec. 31,
                                    1999            1998           1997            1999           1998        1997
                                    --------------------------------------------   -------------------------------------
<S>                                   <C>            <C>            <C>             <C>           <C>             <C>
  Net asset value,                    $18.36          $12.86         $12.50          $18.19          $12.86         $12.50
  beginning of period*                ------          ------         ------          ------          ------         ------
--------------------------------------------------------------------------------------------------------------------------
  Net investment income                 0.35            0.39(d)        0.01            0.08            0.24(d)        0.01
--------------------------------------------------------------------------------------------------------------------------
  Net realized and unrealized           5.08            5.13           0.35            5.09            5.10           0.35
  gain on investment transactions     ------          ------         ------          ------          ------         ------
  and futures contracts
--------------------------------------------------------------------------------------------------------------------------
  Total income from                     5.43            5.52           0.36            5.17            5.34           0.36
  investment operations
--------------------------------------------------------------------------------------------------------------------------
  Distribution to Shareholders from:
  Net investment income                (0.03)          (0.01)            --              --              --(e)          --
--------------------------------------------------------------------------------------------------------------------------
  Net realized gains on investment        --           (0.01)            --              --           (0.01)            --
  transactions and futures contracts
--------------------------------------------------------------------------------------------------------------------------
  In excess of net realized gains on
  investments and futures contracts    (0.09)             --             --           (0.09)             --             --
                                      ------          ------         ------          ------          ------         ------
--------------------------------------------------------------------------------------------------------------------------
  Total distributions                  (0.12)          (0.02)            --           (0.09)          (0.01)            --
--------------------------------------------------------------------------------------------------------------------------
  Net asset value, end of
  period                              $23.67          $18.36         $12.86          $23.27          $18.19         $12.86
                                      ======          ======         ======          ======          ======         ======
--------------------------------------------------------------------------------------------------------------------------
  Total Return                         29.56%          42.95%          2.90%(b)       28.42%          41.48%          2.90%(b)
--------------------------------------------------------------------------------------------------------------------------
  Ratios/Supplemental Data:
  Net assets at end of period   $155,987,050     $90,854,397     $6,043,740     $70,219,680     $10,991,484     $2,394,297
--------------------------------------------------------------------------------------------------------------------------
  Ratio of expenses to                  1.34%           1.50%          1.33%(c)        2.34%           2.39%          1.33%(c)
  average net assets
--------------------------------------------------------------------------------------------------------------------------
  Ratio of net investment               1.99%           2.43%          2.26%(c)        0.79%           1.53%          1.69%(c)
  income to average
  net assets
--------------------------------------------------------------------------------------------------------------------------
  Ratio of expenses to average net      1.36%           1.70%         12.69%(c)        2.36%           2.84%         13.69%(c)
  assets (before reimbursements)**
--------------------------------------------------------------------------------------------------------------------------
  Portfolio Turnover(f)                  764%             --             --             764%             --             --

*   Adjusted for 4:1 stock split that occurred on July 16, 1999.
**  During the period, certain fees were voluntarily reduced and/or reimbursed.
    If such voluntary fee reductions and/or reimbursements had not occurred, the
    ratio would have been as indicated.
(a) Commencement of operations.
(b) Not annualized.
(c) Annualized.
(d) Per share net investment income has been calculated using the daily average
    shares method.
(e) Distribution per share was less than $0.005
(f) Portfolio turnover is calculated on the basis of the fund as a whole without
    distinguishing between the classes of shares issued.
</TABLE>
                                                      Financial Highlights    55
<PAGE>
UltraOTC ProFund

Financial Highlights
For a share of beneficial interest outstanding
<TABLE>
<CAPTION>
                                                       Investor Class                                 Service Class
                                       For the             For the    For the period    For the          For the      For the period
                                       year                year       from Dec. 2,      year             year         from Dec. 2,
                                       ended               ended      1997(a)           ended            ended        1997(a)
                                       Dec. 31,            Dec. 31,   to Dec. 31,       Dec. 31,         Dec. 31,     to Dec. 31,
                                       1999                1998       1997              1999             1998         1997
                                       ---------------------------------------------    --------------------------  -----------
<S>                              <C>      <C>      <C>             <C>          <C>          <C>
  Net asset value,                     $ 29.82            $ 10.45        $12.50           $ 29.68         $ 10.45        $12.50
  beginning of period*                 -------            -------        ------           -------         -------        ------
-------------------------------------------------------------------------------------------------------------------------------
  Net investment income                  (0.16)              0.20(d)       0.08             (0.64)           0.10(d)         --
-------------------------------------------------------------------------------------------------------------------------------
  Net realized and unrealized            69.68              19.17         (2.13)            68.82           19.13         (2.05)
  gain/(loss) on investment            -------            -------        ------           -------         -------        ------
  transactions and futures contracts
-------------------------------------------------------------------------------------------------------------------------------
  Total income/(loss) from               69.52              19.37         (2.05)            68.18           19.23         (2.05)
  investment operations
-------------------------------------------------------------------------------------------------------------------------------
  Distribution to Shareholders from:
  Net investment income                     --(e)              --(e)         --                --              --(e)         --
-------------------------------------------------------------------------------------------------------------------------------
  Net realized gains on investments      (0.46)                --            --             (0.46)             --            --
  and futures contracts                -------            -------        ------           -------         -------        ------
-------------------------------------------------------------------------------------------------------------------------------
  Total distributions                    (0.46)                --            --             (0.46)             --            --
-------------------------------------------------------------------------------------------------------------------------------
  Net asset value, end of period       $ 98.88             $29.82        $10.45           $ 97.40          $29.68        $10.45
                                       =======            =======        ======           =======         =======        ======
-------------------------------------------------------------------------------------------------------------------------------
  Total return                          233.25%            185.34%       (16.40)%(b)       229.73%         183.98%       (16.40)%(b)
-------------------------------------------------------------------------------------------------------------------------------
  Ratios/Supplemental Data:
  Net assets, end of period     $1,216,220,142       $239,017,203      $256,184      $134,837,724     $32,391,937      $663,984
-------------------------------------------------------------------------------------------------------------------------------
  Ratio of expenses to                    1.31%              1.47%         1.07%(c)          2.30%           2.38%         1.75%(c)
  average net assets
-------------------------------------------------------------------------------------------------------------------------------
  Ratio of net investment                (0.50)%             1.05%         2.73%(c)         (1.49)%          0.07%        (0.06)%(c)
  income to average
  net assets
-------------------------------------------------------------------------------------------------------------------------------
  Ratio of expenses to average net        1.33%              1.67%        21.74%(c)          2.32%           2.61%        23.42%(c)
  assets (before reimbursements)**
-------------------------------------------------------------------------------------------------------------------------------
  Portfolio Turnover(f)                    670%               156%           --               670%            156%           --

  * Adjusted for 4:1 stock split that occurred on July 16, 1999.
**  During the period, certain fees were voluntarily reduced and/or reimbursed.
    If such voluntary fee reductions and/or reimbursements had not occurred, the
    ratio would have been as indicated.
(a) Commencement of operations.
(b) Not annualized.
(c) Annualized.
(d) Per share net investment income has been calculated using the daily average
    shares method.
(e) Distribution per share was less than $0.005
(f) Portfolio turnover is calculated on the basis of the fund as a whole without
    distinguishing between the classes of shares issued.
</TABLE>
56   Financial Highlights
<PAGE>

UltraEurope ProFund


Financial Highlights
For a share of beneficial interest outstanding
--------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                           Investor Class     Service Class
                                                                           For the period     For the period
                                                                           from March 15,     from March 15,
                                                                           1999(a)            1999(a)
                                                                           through Dec. 31,   through Dec. 31,
                                                                           1999               1999
                                                                           ---------------------------------------
<S>                                                                        <C>              <C>
  Net asset value, beginning of period                                     $30.00              $30.00
                                                                           ------              ------
-------------------------------------------------------------------------------------------------------------------
  Net investment income                                                      0.19                0.03
-------------------------------------------------------------------------------------------------------------------
  Net realized and unrealized gain/(loss) on investment                     10.80               10.69
  transactions and futures contracts                                       ------              ------
-------------------------------------------------------------------------------------------------------------------
  Total income/(loss) from investment operations                            10.99               10.72
-------------------------------------------------------------------------------------------------------------------
  Distribution to Shareholders from:
  Net investment income                                                        --                  --
-------------------------------------------------------------------------------------------------------------------
  Total distributions                                                          --                  --
-------------------------------------------------------------------------------------------------------------------
  Net asset value, end of period                                           $40.99              $40.72
                                                                           ======              ======
-------------------------------------------------------------------------------------------------------------------
  Total Return                                                              36.63%(b)           35.73%(b)
-------------------------------------------------------------------------------------------------------------------
  Ratios/Supplemental Data:
  Net assets, end of period                                            $5,560,299         $18,960,052
-------------------------------------------------------------------------------------------------------------------
  Ratio of expenses to average net assets                                    1.53%(c)            2.50%(c)
-------------------------------------------------------------------------------------------------------------------
  Ratio of net investment income to average net assets                       1.79%(c)            0.46%(c)
-------------------------------------------------------------------------------------------------------------------
  Ratio of expenses to average net assets (before reimbursements)*           2.53%(c)            3.58%(c)
-------------------------------------------------------------------------------------------------------------------
  Portfolio Turnover(d)                                                       514%                514%

*   During the period, certain fees were voluntarily reduced and/or reimbursed.
    If such voluntary fee reductions and/or reimbursements had not occurred, the
    ratio would have been as indicated.
(a) Commencement of operations.
(b) Not annualized.
(c) Annualized.
(d) Portfolio turnover is calculated on the basis of the fund as a whole without
    distinguishing between the classes of shares issued.
</TABLE>


                                                       Financial Highlights   57
<PAGE>

Bear ProFund


Financial Highlights
For a share of beneficial interest outstanding
--------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                     Investor Class                           Service Class
                                            For the     For the      For the period   For the   For the     For the period
                                            year        year         from Dec. 31,    year      year        from Dec. 31,
                                            ended       ended        1997(a)          ended     ended       1997(a)
                                            Dec. 31,    Dec. 31,     to Dec. 31,      Dec. 31,  Dec. 31,    to Dec. 31,
                                            1999        1998         1997             1999      1998        1997
                                            ------------------------------------   --------------------------------------
<S>                                         <C>        <C>        <C>         <C>        <C>         <C>
  Net asset value,                          $39.88       $50.00       $50.00        $39.76     $50.00      $50.00
  beginning of period                       -------     -------       ------       -------    -------      ------
-------------------------------------------------------------------------------------------------------------------------
  Net investment income                       1.10(d)      1.47(d)        --          0.63(d)    0.87(d)       --
-------------------------------------------------------------------------------------------------------------------------
  Net realized and unrealized                (5.97)      (11.22)          --         (5.92)    (10.88)         --
  (loss) on investment transactions         -------     -------       ------       -------    -------      ------
  and futures contracts
-------------------------------------------------------------------------------------------------------------------------
  Total (loss) from                          (4.87)       (9.75)          --         (5.29)    (10.01)         --
  investment operations
-------------------------------------------------------------------------------------------------------------------------
  Distribution to Shareholders from:
  Net investment income                      (4.83)       (0.37)          --         (4.61)     (0.23)         --
-------------------------------------------------------------------------------------------------------------------------
  Net realized gains on                         --           --(e)        --            --         --(e)       --
  investment transactions                  -------      -------       ------       -------    -------      ------
  and futures contracts
-------------------------------------------------------------------------------------------------------------------------
  Total distributions                        (4.83)       (0.37)          --         (4.61)     (0.23)         --
-------------------------------------------------------------------------------------------------------------------------
  Net asset value, end of period            $30.18       $39.88       $50.00        $29.86     $39.76      $50.00
                                           =======      =======       ======       =======    =======      ======
-------------------------------------------------------------------------------------------------------------------------
  Total return                              (12.32)%     (19.46)%       0.00%(b)    (13.32)%   (20.04)%      0.00%(b)
-------------------------------------------------------------------------------------------------------------------------
  Ratios/Supplemental Data:
  Net assets, end of period             $2,330,573   $4,166,787   $2,516,412    $1,095,326   $379,670         $10
-------------------------------------------------------------------------------------------------------------------------
  Ratio of expenses to                        1.40%        1.54%        0.00%(c)      2.23%      2.49%       0.00%(c)
  average net assets
-------------------------------------------------------------------------------------------------------------------------
  Ratio of net investment                     2.86%        3.12%        0.00%(c)      1.69%     1.90%       0.00%(c)
  income to average
  net assets
-------------------------------------------------------------------------------------------------------------------------
  Ratio of expenses to average net            1.68%        3.26%      325.97%(c)      2.91%     4.09%     326.97%(c)
  assets (before reimbursements)*
-------------------------------------------------------------------------------------------------------------------------
  Portfolio Turnover(f)                       1215%          --           --          1215%       --          --

*   During the period, certain fees were voluntarily reduced and/or reimbursed.
    If such voluntary fee reductions and/or reimbursements had not occurred, the
    ratio would have been as indicated.
(a) Commencement of operations.
(b) Not annualized.
(c) Annualized.
(d) Per share net investment income has been calculated using the daily average
    shares method.
(e) Distribution per share was less than $0.005
(f) Portfolio turnover is calculated on the basis of the fund as a whole without
    distinguishing between the classes of shares issued.
</TABLE>

58    Financial Highlights
<PAGE>
UltraBear ProFund


Financial Highlights
For a share of beneficial interest outstanding
--------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                           Investor Class                             Service Class
                                              For the          For the    For the period   For the    For the     For the period
                                              year             year       from Dec. 23,    year       year from   Dec. 23,
                                              ended            ended      1997(a)          ended      ended       1997(a)
                                              Dec. 31,         Dec. 31,   to Dec. 31,      Dec. 31,   Dec. 31,    to Dec. 31,
                                              1999             1998       1997             1999       1998        1997
                                              --------------------------------------     ---------------------------------------
<S>                                           <C>             <C>         <C>            <C>           <C>       <C>
  Net asset value,                            $31.88          $51.80      $50.00         $31.83        $51.75    $50.00
  beginning of period                        -------         -------    --------        -------       -------    ------
--------------------------------------------------------------------------------------------------------------------------------
  Net investment income                         0.84            1.16(d) 6,082.50(e)        0.54          0.75(d)     --
--------------------------------------------------------------------------------------------------------------------------------
  Net realized and unrealized                 (10.55)         (21.04)  (6,080.70)(e)     (10.45)       (20.67)     1.75
  gain/(loss) on investment                  -------         -------    --------        -------       -------    ------
  transactions and futures contracts
--------------------------------------------------------------------------------------------------------------------------------
  Total income/(loss) from                     (9.71)         (19.88)       1.80          (9.91)       (19.92)     1.75
  investment operations
--------------------------------------------------------------------------------------------------------------------------------
  Distribution to Shareholders from:
  Net investment income                        (0.86)          (0.04)         --          (0.41)            --        --
                                              -------         -------    --------        -------       -------    ------
--------------------------------------------------------------------------------------------------------------------------------
  Total distributions                          (0.86)          (0.04)         --          (0.41)            --        --
--------------------------------------------------------------------------------------------------------------------------------
  Net asset value, end of period              $21.31          $31.88      $51.80         $21.51         $31.83    $51.75
                                             =======        ========     =======        =======        =======    ======
--------------------------------------------------------------------------------------------------------------------------------
  Total Return                                (30.54)%        (38.34)%      3.60%(b)     (31.20)%       (38.45)%    3.50%(b)
--------------------------------------------------------------------------------------------------------------------------------
  Ratios/Supplemental Data:
  Net assets, end of period              $32,534,046     $27,939,876         $21     $4,289,259     $3,012,328       $10
--------------------------------------------------------------------------------------------------------------------------------
  Ratio of expenses to                          1.41%           1.57%       1.33%(c)       2.41%          2.45%     1.33%(c)
  average net assets
--------------------------------------------------------------------------------------------------------------------------------
  Ratio of net investment                       2.20%           2.73%       2.97%(c)      1.21%           1.74%     0.00%(c)
  income to average
  net assets
--------------------------------------------------------------------------------------------------------------------------------
  Ratio of expenses to average net              1.43%           1.78%      32.39%(c)      2.42%           2.74%    33.39%(c)
  assets (before reimbursements)*
--------------------------------------------------------------------------------------------------------------------------------
  Portfolio Turnover(f)                         1137%             --          --          1137%             --        --

*   During the period, certain fees were voluntarily reduced and/or reimbursed.
    If such voluntary fee reductions and/or reimbursements had not occurred, the
    ratio would have been as indicated.
(a) Commencement of operations.
(b) Not annualized.
(c) Annualized.
(d) Per share net investment income has been calculated using the daily average
    shares method.
(e) The amount shown for a share outstanding throughout the period does not
    accord with the earned income or the change in aggregate gains and losses in
    the portfolio of securities during the period because of the timing of sales
    and purchases of fund shares in relation to fluctuating market values during
    the period.
(f) Portfolio turnover is calculated on the basis of the fund as a whole without
    distinguishing between the classes of shares issued.
</TABLE>
                                                       Financial Highlights   59
<PAGE>

UltraShort OTC ProFund


Financial Highlights
For a share of beneficial interest outstanding
--------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                     Investor Class                         Service Class
                                                                  For the period                      For the period
                                            For the               from June 2, 1998(a) For the        from June 2, 1998(a)
                                            year ended            through              year ended     through
                                            Dec. 31, 1999         Dec. 31, 1998        Dec. 31, 1999  Dec.31, 1998
                                            --------------        -----------------    -------------  -----------------
<S>                                         <C>                   <C>                 <C>            <C>
  Net asset value,                          $243.60               $750.00             $243.60           $750.00
  beginning of period*                      -------               -------             -------           -------
----------------------------------------------------------------------------------------------------------------------
  Net investment income                        1.82                  3.90(d)             1.11              1.50(d)
----------------------------------------------------------------------------------------------------------------------
  Net realized and unrealized               (197.61)              (510.30)            (197.45)          (507.90)
  (loss) on investment transactions         -------               -------             -------           -------
  and futures contracts
----------------------------------------------------------------------------------------------------------------------
  Total (loss) from                         (195.79)              (506.40)            (196.34)          (506.40)
  investment operations
----------------------------------------------------------------------------------------------------------------------
  Distribution to Shareholders from:
  Net investment income                       (1.83)                   --(e)            (0.89)               --
                                            -------               -------             -------           -------
----------------------------------------------------------------------------------------------------------------------
  Total distributions                         (1.83)                   --               (0.89)               --
  Net asset value, end of period             $45.98               $243.60              $46.37           $243.60
                                             ======               =======              ======           =======
----------------------------------------------------------------------------------------------------------------------
  Total Return                               (80.36)%              (67.48)%(b)         (80.62)%          (67.50)%(b)
----------------------------------------------------------------------------------------------------------------------
  Ratios/Supplemental Data:
  Net assets, end of period             $38,254,638           $19,465,372          $1,009,722          $855,392
----------------------------------------------------------------------------------------------------------------------
  Ratio of expenses to                         1.44%                 1.83%(c)            2.45%             2.92%(c)
  average net assets
----------------------------------------------------------------------------------------------------------------------
  Ratio of net investment                      2.18%                 1.55%(c)            1.21%             0.54%(c)
  income to average
  net assets
----------------------------------------------------------------------------------------------------------------------
  Ratio of expenses to average net             1.45%                 1.98%(c)            2.46%             3.06%(c)
  assets (before reimbursements)**
----------------------------------------------------------------------------------------------------------------------
  Portfolio Turnover(f)                        1185%                   --                1185%               --

*   Adjusted for 15:1 reverse stock split that occurred on February 11, 2000.
**  During the period, certain fees were voluntarily reduced and/or reimbursed.
    If such voluntary fee reductions and/or reimbursements had not occurred, the
    ratio would have been as indicated.
(a) Commencement of operations.
(b) Not annualized.
(c) Annualized.
(d) Per share net investment income has been calculated using the daily average
    shares method.
(e) Distribution per share was less than $0.005
(f) Portfolio turnover is calculated on the basis of the fund as a whole without
    distinguishing between the classes of shares issued.
</TABLE>

60    Financial Highlights
<PAGE>


Money Market ProFund


Financial Highlights
For a share of beneficial interest outstanding
--------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                      Investor Class                                     Service Class
                                       For the           For the      For the period       For the         For the    For the period
                                       year              year         from Nov. 17,        year            year       from Nov. 17,
                                       ended             ended        1997(a)              ended           ended      1997(a)
                                       Dec. 31,          Dec. 31,     to Dec. 31,          Dec. 31,        Dec. 31,   to Dec. 31,
                                       1999              1998         1997                 1999            1998       1997
                                      -------------------------------------               ------------------------------------------
<S>                                   <C>               <C>          <C>                  <C>              <C>        <C>
  Net asset value,                    $  1.00           $  1.00      $ 1.00               $  1.00          $  1.00    $ 1.00
  beginning of period                 -------           -------      ------               -------          -------    ------
------------------------------------------------------------------------------------------------------------------------------------
  Net investment income                 0.044             0.047(d)    0.006                 0.034            0.037(d)     --
                                      -------           -------      ------               -------          -------    ------
------------------------------------------------------------------------------------------------------------------------------------
  Total income from                     0.044             0.047       0.006                 0.034            0.037        --
  investment operations
------------------------------------------------------------------------------------------------------------------------------------
  Distribution to Shareholders from:
  Net investment income                (0.044)          (0.047)      (0.006)               (0.034)          (0.037)       --
                                      -------           -------      ------               -------          -------    ------
------------------------------------------------------------------------------------------------------------------------------------
  Total distributions                  (0.044)          (0.047)      (0.006)               (0.034)          (0.037)       --
------------------------------------------------------------------------------------------------------------------------------------
  Net asset value, end of period      $  1.00          $  1.00       $ 1.00               $  1.00          $  1.00    $ 1.00
                                      =======          =======       ======               =======          =======    ======
------------------------------------------------------------------------------------------------------------------------------------
  Total Return                           4.48%            4.84%        0.61%(b)              3.44%            3.81%     0.21%(b)
------------------------------------------------------------------------------------------------------------------------------------
  Ratios/Supplemental Data:
  Net assets, end of period      $198,555,252      $62,026,228     $286,962          $107,944,066      $15,406,187    $2,510
------------------------------------------------------------------------------------------------------------------------------------
  Ratio of expenses to                   0.83%(e)         0.85%(e)     0.83%(c),(e)          1.83%(e)         1.87%(e)  1.83%(c),(e)
  average net assets
------------------------------------------------------------------------------------------------------------------------------------
  Ratio of net investment                4.46%             4.81%       4.92%(c)              3.45%            3.43%     2.53%(c)
  income to average
  net assets
------------------------------------------------------------------------------------------------------------------------------------
Ratio of expenses to average net         0.83%(e)         1.18%(e)     9.52%(c),(e)          1.83%(e)         2.18%(e) 10.52%(c),(e)
  assets (before reimbursements)*

*   During the period, certain fees were voluntarily reduced and/or reimbursed.
    If such voluntary fee reductions and/or reimbursements had not occurred, the
    ratio would have been as indicated.
(a) Commencement of operations.
(b) Not annualized.
(c) Annualized.
(d) Per share net investment income has been calculated using the daily average
    shares method.
(e) The Money Market ProFund expense ratio includes the expense allocation of
    the Portfolio.
</TABLE>

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Additional Information about ProFunds' investments is available in ProFunds'
annual and semi-annual reports to shareholders. In ProFunds' annual report you
will find a discussion of the market conditions and investment strategies that
significantly affected performance during the last fiscal year.

You can find more detailed information about ProFunds in its current Statement
of Additional Information, dated May 1, 2000, which we have filed electronically
with the Securities and Exchange Commission (SEC) and which is incorporated by
reference into, and is legally a part of, this prospectus. To receive your free
copy of a Statement of Additional Information, or the annual or semi-annual
reports, or if you have questions about investing in ProFunds, write us at:

ProFunds
P.O. Box 182800
Columbus, OH 43218-2800
or call our toll-free numbers:
(888) PRO-FNDS (888) 776-3637 For Investors
(888) PRO-5717 (888) 776-5717 Financial Professionals Only
or visit our website www.profunds.com

You can find other information about ProFunds on the SEC's website
(http://www.sec.gov), or you can get copies of this information, after payment
of a duplicating fee, by writing to the Public Reference Section of the SEC,
Washington, D.C. 20549-6009. Information about the ProFunds, including their
Statement of Additional Information, can be reviewed and copied at the SEC's
Public Reference Room in Washington, D.C. For information on the Public
Reference Room, call the SEC at (800) SEC-0330.

ProFunds Executive Offices
Bethesda, MD


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