MUTUAL OF AMERICA INSTITUTIONAL FUNDS INC
497, 2000-09-01
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Prospectus
and Application of
               ...
                MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.

                EQUITY INDEX FUND

                ALL AMERICA FUND

                MID-CAP EQUITY INDEX FUND

                AGGRESSIVE EQUITY FUND

                BOND FUND

                MONEY MARKET FUND

                September 1, 2000
                ................................................................


Institutional
        Funds                             Distributed by:
                                          MUTUAL OF AMERICA
                                          SECURITIES CORPORATION

<PAGE>

MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.

320 Park Avenue, New York, New York 10022                         1-800-914-8716
--------------------------------------------------------------------------------

Mutual of America  Institutional  Funds, Inc. is a mutual fund. It has these six
Funds:

     o Equity Index Fund
     o All America Fund
     o Mid-Cap Equity Index Fund
     o Aggressive Equity Fund
     o Bond Fund
     o Money Market Fund

Institutional   investors,   such   as   endowments,   foundations   and   other
not-for-profit  organizations,  corporations and municipalities and other public
entities,  may purchase  shares of the Funds.  An initial  investment must be at
least $25,000, and each subsequent investment must be at least $5,000.


There is no sales charge for the  purchase or sale of Fund  shares.  An investor
must send the payment price for shares  purchased,  and will receive  redemption
proceeds for shares sold, by wire transfer of Federal Funds.


The  Securities and Exchange  Commission  has not approved or disapproved  these
securities or passed upon the adequacy of this prospectus. Any representation to
the contrary is a criminal offense.

--------------------------------------------------------------------------------
Prospectus dated September 1, 2000

<PAGE>

--------------------------------------------------------------------------------
TABLE OF CONTENTS
--------------------------------------------------------------------------------


                                                                        Page
                                                                        ----
Summary of How Our Funds Invest ...................................       1
   Equity Index Fund ..............................................       1
   All America Fund ...............................................       1
   Mid-Cap Equity Index Fund ......................................       2
   Aggressive Equity Fund .........................................       2
   Bond Fund ......................................................       3
   Money Market Fund ..............................................       3
   Annual Total Returns ...........................................       4
   Average Annual Total Returns ...................................       5
   Annual Fees and Expenses .......................................       5
   Comparison With Prior Performance of Similar Fund ..............       6


Management of the Funds ...........................................       7
   The Adviser ....................................................       7
   Subadvisers for a Portion of the All America Fund ..............       7
   Portfolio Managers .............................................       8

Details about How Our Funds Invest and Related Risks ..............       9
   Investment Objectives and Strategies:
     Equity Index Fund ............................................       9
     All America Fund .............................................      10
     Mid-Cap Equity Index Fund ....................................      11
     Aggressive Equity Fund .......................................      12
     Bond Fund ....................................................      12
     Money Market Fund ............................................      13
   Risks of Investing in a Stock Fund .............................      14
   Risks of Investing in a Bond Fund ..............................      14
   Specific Investments or Strategies, and Related Risks ..........      15

Information on Fund Shares ........................................      17
   Pricing of Funds' Shares .......................................      17
   Purchases of Fund Shares .......................................      17
   How to Purchase Shares of the Funds ............................      18
   Redemptions of Fund Shares .....................................      19
   Exchanges of Fund Shares .......................................      19
   How to Place a Redemption or Exchange Order ....................      19
   Shareholder Reports and Confirmation Statements ................      20
   Dividends, Capital Gains Distributions and Taxation of Funds ...      20
   Shareholder Taxation ...........................................      21

Financial Highlights ..............................................      22

You May Obtain More Information ..................................  Inside Back
                                                                       Cover

--  An Application is included with this Prospectus --

<PAGE>

--------------------------------------------------------------------------------
SUMMARY OF HOW OUR FUNDS INVEST
--------------------------------------------------------------------------------

Each  Fund of  Mutual of  America  Institutional  Funds,  Inc.  (the  Investment
Company) has its own  investment  objective  and tries to achieve its  objective
with certain investment  strategies.  The Funds' different investment strategies
will affect the returns of the Funds and the risks of investing in each Fund.

A Fund may not achieve its  objective.  An  investment in any of the Funds could
decline in value.

Equity Index Fund
--------------------------------------------------------------------------------

The Fund seeks investment results that correspond to the investment  performance
of the Standard & Poor's Composite Index of 500 Stocks (the S&P 500(R) Index).


The Fund  invests  primarily  in the 500 common  stocks  included in the S&P 500
Index to replicate, to the extent practicable,  the weightings of such stocks in
the Index.

    o    Securities in the S&P 500 Index  generally are issued by companies with
         large  market  capitalizations.  (Market  capitalization  refers to the
         aggregate  market  value of the equity  securities  that a company  has
         issued.)


    o    Securities  are included in the Index based on industry  weightings and
         the issuers' leading positions in those industries.


An  investment  in the Equity  Index Fund is subject to market risk (the risk of
price  changes  due  to  changes  in the  securities  markets  or  the  economic
environment) and financial risk (credit risk based on the earning  stability and
overall  soundness  of an issuer).  Securities  issued by  companies  with large
market  capitalizations  have more  liquidity  and  generally  have  less  price
volatility than securities of companies with smaller market capitalizations.


All America Fund
--------------------------------------------------------------------------------

The Fund attempts to outperform the S&P 500 Index, by investing in a diversified
portfolio of primarily common stocks.


    o    Approximately  60% of the Fund's  assets are invested in the 500 common
         stocks  included  in the S&P 500  Index  to  replicate,  to the  extent
         practicable, the weightings of such stocks in the Index.

    o    Approximately  40% of the Fund's assets are invested by the Adviser and
         two Subadvisers,  with an objective of capital  appreciation  and, to a
         lesser extent, current income. The Adviser invests approximately 10% of
         the Fund's assets  primarily in small  capitalization  value stocks and
         approximately   10%  of  the   Fund's   assets   primarily   in   large
         capitalization  value stocks; one Subadviser invests  approximately 10%
         of the Fund's assets primarily in small  capitalization  growth stocks;
         and the other Subadviser invests approximately 10% of the Fund's assets
         primarily  in mid- and  large  capitalization  growth  stocks.  (Market
         capitalization  refers  to the  aggregate  market  value of the  equity
         securities  that  a  company  has  issued.)

Value stocks are stocks  considered to be undervalued in the market place taking
into account the issuer's assets,  earnings or growth  potential.  Growth stocks
are stocks considered to possess above average growth potential.




                                      -1-
<PAGE>



An  investment  in the All  America  Fund is subject to market risk (the risk of
price  changes  due  to  changes  in the  securities  markets  or  the  economic
environment) and financial risk (credit risk based on the earning  stability and
overall financial soundness of an issuer).  Approximately 20% of the All America
Fund's assets are invested in small capitalization growth and value stocks, many
of which trade  over-the-counter,  and this portion of its  portfolio  will have
more  market  and  financial  risk than the  portion  invested  in mid and large
capitalization stocks. Equity securities that trade over-the-counter may be more
difficult  to sell than equity  securities  that trade on a national  securities
exchange.

Mid-Cap Equity Index Fund
--------------------------------------------------------------------------------


The Fund seeks investment results that correspond to the investment  performance
of the S&P MidCap 400 Index.


The Fund invests  primarily in the 400 common stocks  included in the S&P MidCap
400 Index to replicate, to the extent practicable, the weightings of such stocks
in the Index.

    o    Stocks  included  in the S&P MidCap  400 Index are issued by  companies
         with mid-sized market capitalizations. (Market capitalization refers to
         the aggregate market value of the equity  securities that a company has
         issued.)

    o    Currently,  the average weighted market  capitalization of companies in
         the Index is over $4 billion,  although companies in the Index may have
         significant smaller or larger market capitalizations.

An  investment  in the Mid-Cap  Equity Index Fund is subject to market risk (the
risk of price changes due to changes in the  securities  markets or the economic
environment) and financial risk (credit risk based on the earning  stability and
overall financial  soundness of an issuer).  Securities issued by companies with
mid-sized  market  capitalizations  generally  trade  in lower  volumes  and are
subject to greater,  less  predictable  price  changes  than the  securities  of
companies with larger market capitalizations.

Aggressive Equity Fund
--------------------------------------------------------------------------------

The Fund seeks capital appreciation.

The Fund  invests  primarily  in  growth  and  value  common  stocks to seek its
investment objectives.


    o    The Fund  invests  in growth  stock  issued by  companies  the  Adviser
         believes to possess above- average growth potential.

    o    The Fund  invests  in value  stocks  issued by  companies  the  Adviser
         believes to be  undervalued  in the  marketplace in relation to factors
         such as the company's assets, earnings, or growth potential.


An investment in the Aggressive  Equity Fund is subject to market risk (the risk
of price  changes  due to changes  in the  securities  markets  or the  economic
environment) and financial risk (credit risk based on the earning  stability and
overall financial  soundness of an issuer).  The Aggressive Equity Fund has more
market risk and financial risk than our other stock funds,  because it generally
invests in growth and value equity securities that often trade  over-the-counter
and  are  issued  by  companies  with  small  market  capitalizations.   (Market
capitalization  refers to the  aggregate  market value of the equity  securities
that a company has issued.)



                                      -2-
<PAGE>

Bond Fund
--------------------------------------------------------------------------------


The Fund seeks current  income,  with  preservation of  shareholders'  capital a
secondary objective.

The Fund invests primarily in publicly-traded, investment grade debt securities.
The  Fund's  securities  holdings  will have an  average  maturity  that  varies
according to the Adviser's view of current market conditions.

    o    The Fund invests in  corporate,  U.S.  Government  securities  and U.S.
         Government agency securities,  such as bonds, notes,  debentures,  zero
         coupon securities and mortgage-backed securities.

    o    The Fund generally  will invest a significant  portion of its assets in
         U.S.  Government  agency  mortgage-backed   securities,  U.S.  Treasury
         Securities, and corporate obligations rated BBB.

    o    The Adviser  evaluates  individual  securities  and selects  securities
         based on interest  income to be generated and  generally  does not time
         purchases and sales based on interest rate predictions.

An  investment  in the Bond Fund is  subject  to market  risk (the risk of price
changes due to changes in the securities  markets or the economic  environment),
which  includes  changes in the overall level of interest  rates.  Interest rate
increases  usually cause a decline in the value of debt  securities  held by the
Fund.  Generally,  the market  risk for the Bond Fund  increases  as the average
maturity of its securities holdings lengthens. Lower rated investment grade debt
securities  are  subject  to a  greater  market  risk  than  higher  rated  debt
securities,  with adverse  economic  conditions or changing  circumstances  more
likely to lead to a weakened  capacity to pay interest and repay  principal  for
debt  in  this  category  than  in  higher-rated   categories.   Mortgage-backed
securities or certificates  are subject to prepayment risk  (shortening the term
to maturity)  when interest rates fall and to extension  risk  (lengthening  the
term to maturity) when interest rates rise.

An  investment in the Bond Fund also  involves  financial or credit risk,  which
refers to the ability of the issuer of a security to pay  principal and interest
as it becomes  due.  Securities  rated BBB or lower have more  credit  risk than
higher-rated securities.


Money Market Fund
--------------------------------------------------------------------------------

The Fund seeks  current  income and  preservation  of  principal by investing in
money  market   instruments  that  meet  certain   requirements  for  liquidity,
investment quality and stability of capital.

    o    The  average  maturity  of the  instruments  the  Fund  holds  will  be
         short-term -- 90 days or less.

    o    The Fund will purchase only securities that are rated in one of the two
         highest rating  categories by at least two rating  agencies,  with most
         securities rated in the highest category.

    o    The Fund will  diversify  its  investments,  limiting  holdings  in the
         securities  of any  one  issuer  (except  the  U.S.  Government  or its
         agencies) to 5% of assets.


The Fund generally will invest primarily in commercial paper and U.S. Government
agency securities.


The Money Market Fund pays  dividends of income earned on a  semi-annual  basis,
rather than  declaring  dividends  daily to maintain a stable net asset value of
$1.00.

    o    The Fund's net asset value will generally rise during six months as the
         Fund earns income, before dividends are paid.

    o    The  Fund's  net  asset  value  will  decline  when the  Fund  declares
         dividends  and  pays  income  to  shareholders  at the end of June  and
         December each year.

A  shareholder's  investment  in the Fund is not  insured or  guaranteed  by the
Federal Deposit Insurance Corporation or any other government agency.


An  investment  in the Money  Market Fund has a small amount of market risk (the
risk of price changes due to changes in the  securities  markets or the economic
environment)  and a small  amount of  financial  risk  (credit risk based on the
earning  stability and overall  financial  soundness of an issuer),  because the
Fund holds high quality securities with short terms to maturity.  The Fund has a
high level of current income  volatility,  because its  securities  holdings are
short term and it reinvests at current interest rates as its holdings mature.



                                      -3-
<PAGE>

Annual Total Returns
--------------------------------------------------------------------------------

The bar charts  below  show the  annual  return of each Fund for the life of the
Fund. The Mid-Cap Equity Index Fund and Aggressive  Equity Fund are not included
because they had not commenced  operations as of the date of this prospectus.  A
chart  indicates the risks of investing in a particular  Fund by showing changes
in the Fund's performance from year-to-year during the period, but a Fund's past
performance does not necessarily indicate how it will perform in the future.

Next to each chart is the Fund's  highest total return for any calendar  quarter
during the period  covered by the chart,  called the best quarter and the Fund's
lowest total return for any calendar  quarter during the period covered,  called
the worst quarter. These returns are an indication of the volatility of a Fund's
total returns.

     [The following table represents a bar chart in the printed material.]

   Equity Index Fund:

          1999             The  Equity  Index Fund  began  operations  on May 3,
          ----             1999.
          9.0%
                           Best quarter: 13.9% during fourth quarter 1999

                           Worst quarter: (6.3)% during third quarter 1999


     [The following table represents a bar chart in the printed material.]

   All America Fund:

1997      1998      1999   The All America Fund began operations on May 1, 1996.
----      ----      ----
 26%       21%       26%   Best quarter: 22.0% during fourth quarter 1998

                           Worst quarter: (13.1)% during third quarter 1998


     [The following table represents a bar chart in the printed material.]

      Bond Fund:

1997      1998      1999   The Bond Fund began operations on May 1, 1996.
----      ----      ----
8.9%      8.3%      -3.5%  Best quarter: 4.8% during third quarter 1998

                           Worst quarter: (1.2)% during first quarter 1999


     [The following table represents a bar chart in the printed material.]

   Money Market Fund:

     1998      1999        The Money  Market  Fund  began  operations  on May 1,
     ----      ----        1997.
     5.3%      4.9%
                           Best quarter: 1.4% during fourth quarter 1999

                           Worst quarter: 1.1% during first quarter 1999


                                      -4-
<PAGE>


Average Annual Total Returns (for periods ended December 31, 1999)
--------------------------------------------------------------------------------


The table below shows the average annual total returns of each Fund for the past
one year period and the return for the period of the Fund's  operations,  except
that the Mid-Cap Equity Index Fund and  Aggressive  Equity Fund are not included
because they began  operations  on September 1, 2000.  The table  indicates  the
risks of investing in the Funds by comparing,  for the same periods, each Fund's
returns to those of a  broad-based,  unmanaged  index,  or to Treasury Bills for
money  market  investments.  A Fund's  past  performance  does  not  necessarily
indicate how it will perform in the future.

<TABLE>
<CAPTION>
                                                                                   Past         For Life
                              Fund/Comparative Index(es)                         One Year       of Fund*
         ===============================================================================================
         <S>                                                                       <C>           <C>
         All America Fund .....................................................    26.0%         22.8%*
           S&P 500 Index (1) ..................................................    21.0%         26.8%
         ===============================================================================================
         Equity Index Fund ....................................................    N/A           9.0%
           S&P 500 Index (1) ..................................................    21.0%         9.0%
         ===============================================================================================
         Bond Fund ............................................................    (3.5)%        5.0%
           Lehman Brothers Gov't./Corp. Bond Index (2) ........................    (2.2)%        6.2%
         ===============================================================================================
         Money Market Fund ....................................................     4.9%          5.1%

           90-day Treasury Bill Rate ..........................................     4.7%          5.0%

           7-day current yield for period ended 12/28/99 was 5.63%
           7-day effective yield (reflecting the compounding of interest)
             for period ended 12/28/99 was 5.79%
         ===============================================================================================
</TABLE>

 * The All  America and Bond Funds began  operations  on May 1, 1996;  the Money
Market  Fund began  operations  on May 1, 1997 and the  Equity  Index Fund began
operations on May 3, 1999.


(1)   The S&P 500(R)is the Standard & Poor's  Composite  Index of 500 Stocks,  a
      market  value-weighted  index of the  common  stock  prices  of  companies
      included in the S&P 500.


(2)   The Lehman  Brothers  Government/Corporate  Bond Index is an index of U.S.
      Government  and  corporate  bond  prices of  investment  grade  bonds with
      maturities greater than one year and face values over $1 million.

Annual Fees and Expenses
--------------------------------------------------------------------------------

This table  describes the fees and expenses that you may pay if you buy and hold
shares of the Funds.  Annual  operating  expenses are shown as a  percentage  of
average net assets.

<TABLE>
<CAPTION>
                                                             Mid-Cap
                                       Equity       All       Equity     Aggressive                  Money
                                        Index     America      Index       Equity       Bond        Market
                                        Fund       Fund        Fund         Fund        Fund         Fund
                                      -------     -------    -------     ----------   ---------     ------
<S>                                     <C>        <C>         <C>          <C>         <C>          <C>
Shareholder Fees ....................   none       none        none         none        none         none
Annual Fund Operating
  Expenses (expenses that are
  deducted from fund assets)
Management Fees .....................    .13%       .50%        .13%         .85%        .45%         .20%
Other Expenses* .....................    .50        .35         .48          .51         .48          .82
                                        ----       ----        ----        -----       -----        -----

Total Annual Fund
  Operating Expenses* ...............    .63%       .85%        .61%        1.36%        .93%        1.02%
Expense Reimbursement** .............   (.31)      (.01)       (.28)        (.26)       (.23)        (.62)
                                        ----       ----        ----        -----       -----        -----

Net Expenses ........................    .32%       .84%        .33%        1.10%        .70%         .40%
                                        ====       ====        ====        =====       =====        =====
</TABLE>


*     The Other Expenses and Total Annual Fund Operating Expenses of the Mid-Cap
      Equity Index Fund and Aggressive  Equity Fund,  which began  operations on
      September 1, 2000, have been estimated by the Adviser and annualized.



                                      -5-
<PAGE>


**    The Adviser has contractually  agreed for calendar year 2000 to limit each
      Fund's  total  expenses  (excluding  taxes,   brokerage   commissions  and
      extraordinary  expenses)  to an annual  rate of .325% of the net assets of
      each of the Equity  Index and  Mid-Cap  Equity  Index  Funds,  .85% of net
      assets of the All  America  Fund,  1.10% of net  assets of the  Aggressive
      Equity Fund, .70% of net assets of the Bond Fund and .40% of net assets of
      the Money Market Fund.  The  Adviser's  obligation  will continue for each
      following  calendar year unless the Adviser gives notice of termination to
      the Investment Company at least two weeks before the next year begins.


Example:

This  Example is intended to help you compare the cost of investing in the Funds
with the cost of investing in other mutual funds.  The Example  assumes for each
Fund that:

    o    you make an investment of $10,000,
    o    you have a 5% annual return on your investment,
    o    all dividends and distributions are reinvested,
    o    Fund  operating  expenses  during the periods  shown are limited by the
         Adviser to the contractual limits only during Year 1, and
    o    you redeem all of your shares at the end of the periods shown.

Although your costs may be higher or lower, your cost based on these assumptions
would be:

<TABLE>
<CAPTION>
                                                       1 Year    3 Years(1)   5 Years(1)    10 Years(1)
                                                       ------     ---------    ---------    ----------
         <S>                                           <C>          <C>          <C>           <C>
         Equity Index Fund .......................     $ 33         $105         $184          $ 419
         All America Fund ........................     $ 87         $275         $481         $1,096
         Mid-Cap Equity Index Fund ...............     $ 34         $197          N/A(2)         N/A(2)
         Aggressive Equity Fund ..................     $114         $439          N/A(2)         N/A(2)
         Bond Fund ...............................     $ 72         $226         $396          $ 902
         Money Market Fund .......................     $ 41         $129         $226          $ 516
</TABLE>

    (1) The expenses used in the Example, other than for 1 Year, are those shown
        in the table above without reimbursement of expenses by the Adviser.

    (2) Because the Mid-Cap  Equity  Index and  Aggressive  Equity Funds are new
        funds, the example covers only the 1 Year and 3 Year periods.

Comparison With Prior Performance of Similar Fund
--------------------------------------------------------------------------------


The Investment  Company is providing the following  comparative  information for
the Aggressive  Equity Fund, an actively  managed fund that began  operations on
September 1, 2000.

The investment  policies,  objectives and strategies of the Investment Company's
Aggressive Equity Fund are substantially identical to the Aggressive Equity Fund
of Mutual of America  Investment  Corporation  (called the VP Aggressive  Equity
Fund).  In addition,  the Adviser and the portfolio  manager is the same for the
Aggressive Equity Fund and the VP Aggressive Equity Fund.

Shares of the VP  Aggressive  Equity Fund are sold only to separate  accounts of
Mutual  of  America  Life  Insurance  Company  and  its  indirect,  wholly-owned
subsidiary, The American Life Insurance Company of New York, as a funding medium
for variable accumulation annuity contracts and variable life insurance policies
issued by these companies.

Below are average annual total returns for the VP Aggressive  Equity Fund, based
on  information  about  the VP  Aggressive  Equity  Fund  that the  Adviser  has
provided. Past performance of the VP Aggressive Equity Fund is not predictive of
future  performance.  Investors should not consider  performance data for the VP
Aggressive  Equity  Fund  as an  indication  of the  future  performance  of the
Aggressive Equity Fund offered under this Prospectus.



                                      -6-
<PAGE>


         Average Annual Total Returns of the VP Aggressive Equity Fund
                      for Periods ended December 31, 1999

<TABLE>
<CAPTION>
                                                                                   Since Inception of
                                          One Year    Five Years     Ten Years    Institutional Fund (1)
                                          --------    ----------     ---------    ----------------------
<S>                                         <C>          <C>
VP Aggressive Equity Fund ..............    43.3%        23.7%          N/A                N/A
</TABLE>



(1) The Investment  Company's  Aggressive Equity Fund commenced  operations on
    September 1, 2000.

Results for the VP Aggressive  Equity Fund are  different  than the results that
would have been obtained for the Investment Company Aggressive Equity Fund.

    o    Use of the Investment Company Aggressive Equity Fund's expenses for the
         VP Aggressive Equity Fund would have lowered performance  results.  The
         total operating expenses during the periods shown above as a percentage
         of net average net assets were .85% for the VP Aggressive  Equity Fund,
         while the annual total operating expenses (after  reimbursement) of the
         Aggressive Equity Fund of the Investment  Company would have been 1.10%
         of average net assets.

    o    At June 30,  2000,  VP  Aggressive  Equity  Fund had net assets of $343
         million.  The  Investment  Company  Aggressive  Equity  Fund  commenced
         operations on September 1, 2000 with assets of $15 million.


--------------------------------------------------------------------------------
MANAGEMENT OF THE FUNDS
--------------------------------------------------------------------------------

The Adviser
--------------------------------------------------------------------------------


Mutual of America Capital Management Corporation, 320 Park Avenue, New York, New
York 10022 (the Adviser or Capital Management) is the investment adviser for the
Funds of the Investment  Company.  The Adviser had total assets under management
of approximately  $8.2 billion at June 30, 2000,  including $2.8 billion for the
Mutual of America Investment Corporation. As Adviser, Capital Management:


    o    places orders for the purchase and sale of securities,
    o    engages in securities research,
    o    makes  recommendations to and reports to the Investment Company's Board
         of Directors,
    o    provides certain  administrative  services for the Funds, and
    o    provides  the  office  space,  facilities,   equipment,   material  and
         personnel necessary to perform its duties.

For its investment  management services,  the Adviser receives compensation from
each Fund at an annual  rate of the Fund's  net  assets,  calculated  as a daily
charge. These annual rates, which are applicable during 2000, are:

    o    Equity Index Fund -- .125%          o    Aggressive Equity Fund -- .85%
    o    All America Fund -- .50%            o    Bond Fund -- .45%
    o    Mid-Cap Equity Index Fund-- .125%   o    Money Market Fund -- .20%

Subadvisers for a Portion of the All America Fund
--------------------------------------------------------------------------------

The Adviser has delegated its investment advisory responsibilities for a portion
of the All America Fund to two Subadvisers.  Each Subadviser provides investment
advice for  approximately 10% of the assets of the All America Fund. The Adviser
pays the Subadvisers for their advisory services to the All America Fund.


    o    Fred Alger  Management,  Inc., One World Trade Center,  Suite 9333, New
         York, New York 10048, is a small capitalization  growth adviser for its
         portion of the All  America  Fund.  It provides  investment  management
         services to institutional, corporate and individual clients,  including
         other  registered  management  investment  companies. At June 30, 2000,
         Fred  Alger  Management  had  assets  under management of approximately
         $21.2 billion.



                                      -7-
<PAGE>


    o    Oak Associates,  Ltd.,  3875 Embassy  Parkway,  Suite 250, Akron,  Ohio
         44333,  is a mid-  and  large  capitalization  growth  adviser  for its
         portion of the All  America  Fund.  It provides  investment  management
         services for individual and corporate clients,  primarily in connection
         with  retirement  plans.  At June 30, 2000,  Oak  Associates had assets
         under management of approximately $29.3 billion.


Portfolio Managers
--------------------------------------------------------------------------------

The person(s) primarily  responsible for the day-to-day management of the Funds'
investment  portfolios  are listed below.  No information is given for the Money
Market Fund because of the type of investments it makes. No information is given
for the Equity Index Fund,  the Mid-Cap  Equity Index Fund or the Indexed Assets
of the All  America  Fund,  because  the  investment  objective  for  each is to
replicate the performance of an index.


All America Fund

Thomas P. Larsen,  Executive Vice President of the Adviser,  is responsible  for
managing the Adviser's  portions of the actively managed assets of the Fund. Mr.
Larsen joined the Adviser in June 1998,  after serving as Senior Vice  President
of Desai  Capital  Management,  where he had been since  1991.  He has almost 30
years of experience in selecting securities for and managing equity portfolios.

David D. Alger and Bonnie Smithwick are primarily responsible for the day-to-day
management  of the  Fred  Alger  Management  portion  of the  Fund.  Mr.  Alger,
President  and  Chief  Executive  Officer  of Fred  Alger  Management,  has been
employed by Fred Alger  Management since 1971 and has been President since 1995,
and he  serves  as  portfolio  manager  for other  mutual  funds and  investment
accounts  managed by Fred Alger  Management.  Ms. Smithwick has been employed by
Fred Alger Management since June 2000 as a Vice President and portfolio manager.
Prior  thereto,  she served as a Director of Global  Custody Sales for Citibank,
N.A. from 1993 to 1996 and was a Senior Vice President and Financial Analyst for
Bramwell Capital Management from 1996 to June 2000.


James D. Oelschlager is the portfolio  manager of the Oak Associates  portion of
the Fund. Since  establishing Oak Associates in 1985, Mr. Oelschlager has served
as its portfolio manager.  Previously,  he served as the Assistant  Treasurer of
Firestone  Tire & Rubber  Company,  where he was  directly  responsible  for the
management of the company's  pension  assets.  Mr.  Oelschlager is assisted with
portfolio  management   responsibilities  by  Donna  Barton,  trading,  Margaret
Ballinger,  new accounts,  and Doug MacKay,  equity research.  These individuals
have combined  experience of over seventy years in the  investment  business and
play a key role in the day-to-day management of the firm's portfolios.


Aggressive Equity Fund

Thomas P. Larsen,  Executive Vice President of the Adviser,  has  responsibility
for managing the Fund.  Mr.  Larsen,  who has almost 30 years of  experience  in
selecting  securities for and managing equity portfolios,  joined the Adviser in
June 1998 and before that was Senior Vice President of Desai Capital Management,
where he had been since 1991.

Bond Fund


Andrew L. Heiskell,  Executive Vice President of the Adviser, has responsibility
for setting the fixed income  investment  strategy and overseeing the day-to-day
operations of the Bond Fund. Mr. Heiskell has been the portfolio manager for the
Bond Fund of the Mutual of America  Investment  Corporation  since February 1991
and of its Mid-Term and Short-Term Bond Funds since their inceptions in 1993. He
has more than 30 years of  experience in selecting  securities  for and managing
fixed-income portfolios.


                                      -8-
<PAGE>

--------------------------------------------------------------------------------
DETAILS ABOUT HOW OUR FUNDS INVEST AND RELATED RISKS
--------------------------------------------------------------------------------

Investment Objectives and Strategies
--------------------------------------------------------------------------------

Equity  Index Fund: The  investment  objective  of the  Equity  Index Fund is to
                    provide   investment   results   that   correspond   to  the
                    performance of the S&P 500 Index.

The Fund seeks to achieve its objective primarily by:


    o    Purchasing shares of the 500 common stocks that are included in the S&P
         500 Index.


         *  Stocks are selected in the order of their  weightings in the S&P 500
            Index, beginning with the heaviest weighted stocks.

         *  The percentage of the Fund's assets invested in each of the selected
            stocks will be  approximately  the same as the  percentage the stock
            represents in the S&P 500 Index.

         *  The Fund  attempts to be fully  invested at all times,  and at least
            80% of the Fund's net assets  will be  invested  in the stocks  that
            comprise the S&P 500 Index.

    o    Purchasing  futures  contracts  on the S&P 500  Index  and  options  on
         futures  contracts  on the S&P 500  Index to invest  cash  prior to the
         purchase of common stocks, in an attempt to have the Fund's performance
         more closely correlate with the performance of the S&P 500 Index.

The  Adviser  uses a  computer  program  to  determine  which  stocks  are to be
purchased or sold to copy the S&P 500 Index.  From time to time,  the Fund makes
adjustments in its portfolio  (rebalances) because of changes in the composition
of the S&P 500  Index  or in the  valuations  of the  stocks  within  the  Index
relative to other stocks within the Index.

The Fund's investment performance may not precisely duplicate the performance of
the S&P 500  Index,  due to cash  flows in and out of the  Fund  and  investment
timing considerations.  The Fund also pays investment advisory expenses that are
not applicable to an unmanaged index such as the S&P 500 Index.


The Fund's ability to duplicate the  performance of the S&P 500 Index depends to
some  extent  on the  size of the  Fund's  portfolio.  Mutual  of  America  Life
Insurance  Company (Mutual of America),  the indirect parent  corporation of the
Adviser,  invested a total of $25 million in the Equity Index Fund when the Fund
began operations.  Mutual of America currently intends to maintain an investment
in the Fund so that the Fund's assets are at least $25 million at any time. When
Mutual of America  redeems all or any portion of its  investment in the Fund, it
is  anticipated  that  the  Fund  will  sell  portfolio  securities  to meet the
redemption request. As a consequence, the Fund may realize investment gains that
will  be  included  in  the  next  annual  distribution  to  shareholders.   See
"Shareholder Taxation".



--------------------------------------------------------------------------------
     Standard & Poor's(R)  (S&P(R)) does not sponsor,  endorse,  sell or promote
     the Equity  Index Fund,  All  America  Fund or Mid-Cap  Equity  Index Fund.
     "Standard  & Poor's,"  "S&P,"  the "S&P 500 Index" and the "S&P  MidCap 400
     Index" are  trademarks  of The  McGraw-Hill  Companies,  Inc. and have been
     licensed  for use by the  Investment  Company.  Standard  &  Poor's  has no
     obligation or liability for the sale or operation of the Equity Index Fund,
     All America Fund or Mid-Cap  Equity Index Fund and makes no  representation
     as    to    the     advisability     of    investing    in    the    Funds.
--------------------------------------------------------------------------------



                                      -9-
<PAGE>

All  America  Fund:   The  investment  objective  of the All America  Fund is to
                      outperform the S&P 500 Index by investing in a diversified
                      portfolio of primarily common stocks.

At least 65% of the All America  Fund's  total assets will be invested in equity
securities  under normal market  conditions.  The issuers of at least 80% of the
Fund's total assets will be United States corporations or entities.

Indexed  Assets.  The Fund  invests  approximately  60% of its assets to provide
investment results that correspond to the performance of the S&P 500 Index. This
portion of the All America Fund is called the Indexed  Assets.  The Fund invests
Indexed  Assets in the 500 common  stocks  included  in the S&P 500 Index and in
futures  contracts  on the S&P  500  Index.  The  Fund  attempts  to  match  the
weightings of stocks in the Indexed  Assets with the  weightings of those stocks
in the S&P 500 Index,  and it  periodically  rebalances  the  Indexed  Assets to
maintain those weightings.


The Fund's ability to duplicate the  performance of the S&P 500 Index depends to
some extent on the size of the Fund's portfolio.  Mutual of America's investment
in the Fund was  approximately  $40  million as of the date of this  prospectus.
Mutual of America  currently  intends to maintain an  investment  in the Fund so
that the Fund's  assets are at least $25  million  at any time.  When  Mutual of
America  redeems  all or  any  portion  of its  investment  in the  Fund,  it is
anticipated that the Fund will sell portfolio  securities to meet the redemption
request.  As a consequence,  the Fund may realize  investment gains that will be
included in the next  annual  distribution  to  shareholders.  See  "Shareholder
Taxation".


Active  Assets.  The Fund  invests  approximately  40% of its  assets to seek to
achieve a high level of total return,  through both appreciation of capital and,
to a lesser  extent,  current  income,  by means of a  diversified  portfolio of
primarily common stocks with a broad exposure to the market. The Adviser and two
Subadvisers  actively  manage  this  portion of the All America  Fund,  which is
called the Active Assets.


If the Adviser or either of the Subadvisers actively trades Fund securities, the
Fund  will  incur  higher   transaction   costs,  which  may  reduce  investment
performance.   In  addition,  the  Fund  may  realize  capital  gains  that  are
distributed to shareholders and are subject to taxation.


The Fund tries to maintain, to the extent possible,  approximately equal amounts
in each segment of the Active Assets. The Adviser periodically rebalances assets
in the All America Fund to retain the approximate 60%/40%  relationship  between
Indexed Assets and Active Assets, based on then current market values.


Adviser--Small  Capitalization  Value Stocks.  The Adviser  generally invests in
stocks that it considers  undervalued  and with the  potential for above average
investment returns, issued by companies with small market capitalizations.  Some
of the companies  whose stocks the Adviser  selects may have limited Wall Street
coverage  and low  institutional  ownership,  which  may  make the  stocks  more
difficult to sell in certain market conditions.


    o    The Adviser seeks  securities  with a depressed  valuation  compared to
         their previous  valuations or compared to a universe of peer companies.
         The  Adviser   determines   depressed   valuation   primarily   through
         consideration of earnings, cash flow or net equity.

    o    Issuers  must have  executive  management  that the  Adviser  considers
         strong and  capable of  executing  a clear  business  strategy  for the
         company.



The Adviser at times may actively trade the securities in its portion of the All
America Fund, depending on market conditions.

The Adviser--Large Capitalization Value Stocks. The Adviser invests this portion
of Active  Assets in stocks it  considers  to be of high quality with lower than
average price volatility and low price/earning  ratios, issued by companies with
large market capitalizations. Companies generally will have:


    o    below market debt levels,

    o    earnings growth of 10% or more,

    o    current yield greater than the average of the S&P 500, and

    o    market capitalization not less than that of any company included in the
         S&P Barra Value Index, updated quarterly.


The Adviser at times may actively trade the securities in its portion of the All
America Fund, depending on market conditions.



                                      -10-
<PAGE>


Fred Alger Management, Inc.--Small Capitalization Growth Stocks. This Subadviser
invests in stocks that it considers to be fundamentally sound with the potential
for strong growth and for earnings in excess of market  expectations,  issued by
companies with small market capitalizations.


    o    The   securities   of  these   companies   often  are   traded  in  the
         over-the-counter market.


    o    Except  during  temporary   defensive  periods  (when  abnormal  market
         conditions  are  occurring) at least 65% of the assets will be invested
         in equity  securities  of  companies  that,  at the time of the  Fund's
         purchase,   have  total  market  capitalization  within  the  range  of
         capitalization  of the  companies  included in the Russell  2000 Growth
         Index or the S&P  SmallCap  600  Index(R),  updated  quarterly.  During
         temporary defensive periods,  Fred Alger Management may not achieve the
         investment objective for its portion of the All America Fund.

Fred Alger  Management  uses a bottom-up  approach in  selecting  stocks for its
portion of the Fund,  evaluating  each  issuer of  securities  before  making an
investment. Through in-house research by analysts who are organized according to
industry groups, it develops stock selection  recommendations that are presented
to executive officers and portfolio managers for evaluation and discussion.  The
portfolio manager then determines the individual stocks that are appropriate for
purchase. Fred Alger Management actively trades the securities in its portion of
the All America Fund,  and its portfolio  turnover rate generally will be higher
than the portfolio turnover rate for the other portions of the Active Assets.

Oak  Associates,   Ltd.--Mid-  and  Large  Capitalization  Growth  Stocks.  This
Subadviser invests in mid- and large-sized  capitalization  stocks,  which often
have low current income and the potential for significant  growth.  Its approach
is to:


    o    monitor 400 stocks,

    o    at any one time to invest in approximately  15-25 common stocks without
         regard for market industry weighting, and

    o    usually hold  securities  that have  appreciated in value,  rather than
         selling them to realize capital gains.

Oak Associates identifies industries it believes are attractive from a long-term
perspective,  based on the direction of interest rates, the overall stock market
environment,  the inflation rate and evolving relationships of economic sectors.
In selecting  individual  stocks,  Oak Associates  evaluates  companies'  growth
prospects  and utilizes  relative  valuation  measures such as price to earnings
ratio as compared to long-term  growth rate,  historical  levels and the S&P 500
Index.


Mid-Cap Equity Index Fund: The investment  objective of the Mid-Cap Equity Index
                           Fund is to provide investment results that correspond
                           to the performance of the S&P MidCap 400 Index.


The Fund seeks to achieve its objective primarily by:

    o    Purchasing  shares of the 400  common  stocks  that are part of the S&P
         MidCap 400 Index.

         *  Stocks  are  selected  in the order of their  weightings  in the S&P
            MidCap 400 Index, beginning with the heaviest weighted stocks.

         *  The percentage of the Fund's assets invested in each of the selected
            stocks will be  approximately  the same as the  percentage the stock
            represents in the S&P MidCap 400 Index.

         *  The Fund  attempts to be fully  invested at all times,  and at least
            80% of the Fund's net assets  will be  invested  in the stocks  that
            comprise the S&P MidCap 400 Index.

    o    Purchasing futures contracts on the S&P MidCap 400 Index and options on
         futures  contracts  on the S&P 400  Index to invest  cash  prior to the
         purchase of common stocks, in an attempt to have the Fund's performance
         more  closely  correlate  with the  performance  of the S&P  MidCap 400
         Index.

The  Adviser  uses a  computer  program  to  determine  which  stocks  are to be
purchased or sold to copy the S&P MidCap 400 Index.  From time to time, the Fund
makes  adjustments  in its  portfolio  (rebalances)  because  of  changes in the
composition of the S&P MidCap 400 Index or in the valuations of the stock within
the Index relative to other stocks within the Index.


                                      -11-
<PAGE>

There  is a risk  that  the  Fund's  investment  performance  may not  precisely
duplicate the performance of the S&P MidCap 400 Index,  due to cash flows in and
out of the  Fund and  investment  timing  considerations.  The  Fund  also  pays
investment  advisory expenses that are not applicable to an unmanaged index such
as the S&P MidCap 400 Index.


The Fund's  ability to  duplicate  the  performance  of the S&P MidCap 400 Index
depends to some  extent on the size of the Fund's  portfolio.  Mutual of America
invested  $20  million  in the  Mid-Cap  Equity  Index  Fund when the Fund began
operations  and intends to maintain an investment in the Fund so that the Fund's
assets are at least $20 million at any time.  When Mutual of America redeems all
or any portion of its  investment in the Fund, it is  anticipated  that the Fund
will sell portfolio securities to meet the redemption request. As a consequence,
the Fund may realize  investment  gains that will be included in the next annual
distribution to shareholders. See "Shareholder Taxation".


Aggressive  Equity Fund:  The  investment  objective of the  Aggressive  Fund is
                          capital appreciation.

The Fund invests in growth stocks and value stocks,  and the Adviser  determines
the percentage of the Fund's assets invested in growth stocks or value stocks at
any one time. At least 85% of the Aggressive  Equity Fund's total assets will be
invested in equity securities under normal market conditions.

    o    Growth   stocks  are  stocks  that  the  Adviser   considers   to  have
         above-average growth potential, based on earnings, sales or prospective
         economic or political changes.

    o    Value stock are stock that the Adviser views as  undervalued,  based on
         the issuer's assets, earnings or growth potential.

The  Adviser  uses a  "bottom-up"  approach  in  selecting  stocks for the Fund,
evaluating an issuer of securities  before  purchasing  those securities for the
Fund,  without taking into account possible changes in the general economy.  The
Adviser  continually  reviews  the  universe  of  companies  with  small  market
capitalization to identify securities with growth or value  characteristics that
meet its  requirements.  In  evaluating  an  individual  security,  the  Adviser
determines the  security's  valuation  relative to other  securities in the same
sector or industry.

Some of the stocks the Fund purchases have small market  capitalizations and may
be  traded-over-the  counter instead of on an exchange.  During different market
cycles, either growth or value stocks may be out of favor with investors and may
have more market risk (price volatility) than larger capitalization stocks.

Bond Fund:  The primary  investment  objective  of the Bond Fund is to provide a
            high level of current income. A secondary  objective is preservation
            of shareholders' capital.

The  average  maturity  of the debt  securities  held by the Bond Fund will vary
according to market  conditions  and the stage of the interest  rate cycle.  The
Fund's Adviser  anticipates that the average  maturity of the Fund's  securities
holdings will be between five and ten years.

The Fund invests at least 80% of its assets in investment grade debt obligations
issued by U.S. corporations or issued by the U.S. Government or its agencies.

    o    The Fund invests in various types of debt securities,  including bonds,
         mortgage-backed  securities,  zero coupon  securities and  asset-backed
         securities,  with  ratings  that  range  from AAA to BBB at the time of
         purchase.

    o    The percentage of the Fund's portfolio  invested in particular types of
         securities will vary,  depending on market conditions and the Adviser's
         assessment  of  the  income  and  returns   available   from  corporate
         securities in relation to the risks of investing in these securities.


    o    At December 31, 1999, the Bond Fund had invested as a percentage of net
         assets  approximately  19% in U.S.  Treasury  Securities and 6% in U.S.
         Government agency mortgage-backed  securities. At that date, 35% of the
         Fund's net assets were invested in obligations  rated AAA, 41.6% of its
         net assets were invested in corporate obligations rated BBB and 7.7% of
         its net assets  were  invested  in  corporate  obligations  rated below
         investment  grade.  At June 30,  2000,  the Bond Fund had invested as a
         percentage of net assets  approximately 15% in U.S. Treasury



                                      -12-
<PAGE>


         Securities and 5% in U.S. Government agency mortgage-backed securities.
         At that date, 27% of the Fund's net assets were invested in obligations
         rated AAA, 44% were invested in corporate obligations rated BBB and 12%
         were invested in corporate obligations rated below investment grade. At
         December 31, 1999 and June 30, 2000,  the Fund's  non-investment  grade
         holdings were due to ratings  downgrades  subsequent to purchase by the
         Fund.  The Fund  does not  purchase  securities  that are  rated  below
         investment  grade but holds  securities  that have been downgraded when
         the Adviser  considers the securities to be undervalued  due to factors
         such as lack of liquidity or uncertainty in the marketplace.


The Adviser uses a bottom-up approach in selecting debt securities for the Fund.
This means that the Adviser evaluates each issuer of securities before making an
investment,  rather than  selecting  securities or industries  based on possible
changes  in  the  economy.  The  Adviser's  approach  generally  is to  purchase
securities  for  income.  In  selecting  an  individual  security,   it  reviews
historical  financial measures and considers the price and yield relationship to
other securities to determine a proper relative value for the security.

The Fund  generally  does not purchase and sell  securities in  anticipation  of
interest  rate changes in the economy.  The Adviser may sell a security  that it
considers to have become  overvalued  relative to alternative  investments,  and
reinvest in an alternative security.

Money Market Fund: The  investment  objective  of the  Fund is to  realize  high
                   current income to the extent  consistent with the maintenance
                   of liquidity, investment quality and stability of capital.

In selecting specific  investments for the Fund, the Adviser seeks securities or
instruments   with  the  highest   yield  or  income  that  meet  the  following
requirements.

    o    The Fund invests only in money market  instruments and other short-term
         debt securities, including commercial paper issued by U.S. corporations
         and in U.S.  Government  and  U.S.  Government  agency  securities.  At
         December  31, 1999 and June 30,  2000,  100% of the Fund's  assets were
         invested  in  commercial  paper,  a  portion  of which  were  also U.S.
         Government agency securities.

    o    All of the  securities  the Fund  purchases have a rating in one of the
         two highest rating  categories from at least two nationally  recognized
         rating agencies,  and substantially all (at least 95%) have a rating in
         the highest category from at least two of these rating agencies.

    o    At the time of  purchase,  a security  must mature in 13 months or less
         (or 25 months  for U.S.  Government  securities).  The  dollar-weighted
         average maturity of the Fund's securities must be 90 days or less.

    o    The Fund  will not  invest  more  than 5% of its  total  assets  in the
         securities  of any one  issuer,  other than U.S.  Government  or agency
         securities.

The Fund does not  maintain a stable net asset  value.  Income the Fund earns on
its portfolio  holdings increases the Fund's net asset value per share until the
Fund declares a dividend.  The Fund declares a dividend of net investment income
at least  semi-annually,  and the Fund's net asset value per share declines as a
result of the distribution to its shareholders.

The Fund uses the  amortized  cost  method  of  valuing  securities  that have a
remaining  term to  maturity  of 60 days or less.  Because  the Fund uses market
value for securities  that mature in more than 60 days, the Fund does not invest
more than 20% of its assets in these  securities,  to limit the possibility of a
decline in the Fund's net asset value.

An investment  in the Fund has little market or financial  risk but a relatively
high level of current income volatility, because its portfolio holdings are high
quality instruments that have a short time to maturity. Investments in the Money
Market  Fund are not insured or  guaranteed  by the  Federal  Deposit  Insurance
Corporation or any other U.S. Government agency.


                                      -13-
<PAGE>

Risks of Investing in a Stock Fund
--------------------------------------------------------------------------------

When you invest in a stock fund, you should consider that:

    o    The fund is subject to market risk -- the value of your investment will
         go up or down,  depending  on  movements  in the  stock  markets.  As a
         result, you may lose money from your investment, or your investment may
         increase in value.

    o    The  investment  results for a  particular  Fund may be better or worse
         than the results for the stock markets  taken as a whole,  depending on
         the type of securities in which the Fund invests.

    o    The  investment  results for a  particular  Fund may be better or worse
         than the  results  of other  funds  that  invest  in the same  types of
         securities.  In other words,  stock  selection  by a Fund's  investment
         adviser(s) will impact the Fund's performance.

    o    The  prices and  investment  performance  of stocks  that are issued by
         companies with smaller market  capitalizations  may fluctuate more than
         the  prices and  investment  performance  of stocks  that are issued by
         companies with larger market capitalizations.


    o    A Fund may have more difficulty selling a small capitalization stock or
         any  stock  that  trades  "over-the-counter",  as  compared  to  larger
         capitalization  stocks or stocks  that trade on a national  or regional
         stock exchange.


    o    Value  stocks and  growth  stocks  usually  have  different  investment
         results, and either investment style may become out of favor with stock
         investors at a given time.


    o    American Depositary Receipts (ADRs), which  are  dollar-denominated and
         represent  the  deposit with U.S.  banks  of  the securities of foreign
         issuers, are  subject  to  the risks of changes in currency or exchange
         rates (which  impact the value of  the  issuer)  and  the difficulty of
         assessing economic or political trends in foreign countries.


Risks of Investing in a Bond Fund
--------------------------------------------------------------------------------

When you invest in a bond fund, you should consider that:

    o    The fund has market risk -- the value of your  investment will go up or
         down depending on movements in the bond markets.  As a result,  you may
         lose money from your  investment,  or your  investment  may increase in
         value.

    o    The  investment  results for a  particular  Fund may be better or worse
         than the  results  for the  comparable  bond  market  taken as a whole,
         depending on the type of debt securities in which the Fund invests.

    o    The  investment  results for a  particular  Fund may be better or worse
         than the  results  of other  funds  that  invest  in the same  types of
         securities.  In other words,  security selection by a Fund's investment
         adviser will impact the Fund's performance.

    o    Changes in prevailing  interest  rates usually will impact the value of
         debt securities. The longer the time period before the security matures
         (or is expected to be redeemed),  the more impact interest rate changes
         will have on the price of the  bond.  When  interest  rates  rise,  the
         prices of outstanding debt securities tend to fall. When interest rates
         fall, the prices of outstanding debt securities tend to rise.

    o    Mortgage-backed securities or certificates are subject to prepayment or
         extension  risk when interest  rates change.  When interest rates fall,
         the  underlying  mortgages  may  be  prepaid  at  a  faster  rate  than
         previously assumed in pricing the mortgage-backed security, which would
         shorten  the  period  to  maturity.   When  interest  rates  rise,  the
         underlying  mortgages  may be prepaid at a slower rate than  previously
         assumed, which would lengthen the period to maturity.

    o    In periods of economic uncertainty, investors may favor U.S. government
         debt  securities over debt  securities of corporate  issuers,  in which
         case the value of corporate debt  securities  would decline in relation
         to the value of U.S. government debt securities.



                                      -14-
<PAGE>

    o    Zero coupon securities and discount notes do not pay interest, and they
         may fluctuate  more in market value and be more difficult for a Fund to
         resell  during  periods  of  interest  rate  changes  than   comparable
         securities that pay interest in cash at regular intervals. In addition,
         the Fund may lose a portion of  the  principal amount of  a zero coupon
         security if it sells the security after an increase in interest rates.

    o    Unrated  securities or securities  rated below  investment grade may be
         subject  to a greater  market  risk than  higher  rated  (lower  yield)
         securities.  Since  lower rated and unrated  securities  are  generally
         issued by  corporations  that are not as  creditworthy  or  financially
         secure as issuers of higher rated  securities,  there is a greater risk
         that issuers of lower rated (higher yield)  securities will not be able
         to pay the  principal and interest due on such  securities,  especially
         during periods of adverse economic conditions.


    o    Foreign debt securities  are subject to the risks of changes in current
         or exchange rates (which impact the financial condition of the issuer),
         the  difficulty of  assessing  economic  or political trends in foreign
         countries  and  less  liquidity  and  more  price  volatility than U.S.
         securities.


    o    The  market  for  debt   securities   may  be  subject  to  significant
         volatility, and volatility has generally increased in recent years.

Specific Investments or Strategies, and Related Risks
--------------------------------------------------------------------------------


This section  provides  additional  information  about certain of the investment
strategies used by the Funds.


Options and Futures Contracts

Investment  Strategies.  All of the Funds (other than the Money Market Fund) may
purchase and sell put and call options contracts,  futures contracts and options
on  futures  contracts.  Depending  on the types of  securities  in which a Fund
invests,  the  contracts  relate  to  fixed-income  securities  (including  U.S.
Government and agency  securities),  equity securities or indexes of securities.
All contracts must relate to U.S. issuers or U.S. stock indexes.

A put option on a security  gives the Fund the right to sell the  security  at a
certain  price.  The  purchase of a put option on a security  protects  the Fund
against  declines  in the  value of the  security.  A Fund may buy a put  option
contract on a security only if it holds the security in its portfolio.

A call  option on a security  gives the Fund the right to buy the  security at a
certain  price.  The  purchase of a call option on a security  protects the Fund
against  increases  in  the  value  of  the  security  that  it  is  considering
purchasing.  A Fund may sell a call  option  contract  on a security  only if it
holds the security in its portfolio (a covered call).

A Fund may use futures contracts,  or options on futures  contracts,  to protect
against general increases or decreases in the levels of securities prices:

    o    When a Fund  anticipates  a general  decrease  in the  market  value of
         portfolio  securities,  it may sell  futures  contracts.  If the market
         value  falls,  the decline in the Fund's net asset value may be offset,
         in whole or in part, by corresponding gains on the futures position.

    o    When a Fund projects an increase in the cost of fixed-income securities
         or stocks to be acquired in the future,  the Fund may purchase  futures
         contracts on fixed-income  securities or stock indexes.  If the hedging
         transaction   is   successful,   the   increased   cost  of  securities
         subsequently  acquired may be offset,  in whole or in part, by gains on
         the futures position.

Risks From Options And Futures Contracts. Risks to a Fund in options and futures
transactions include the following:

    o    The securities held in a Fund's portfolio may not exactly duplicate the
         security or securities  underlying  the options,  futures  contracts or
         options on futures  contracts  traded by the Fund,  and as a result the
         price of the  portfolio  securities  being  hedged will not move in the
         same amount or direction as the  underlying  index,  securities or debt
         obligation.

    o    A Fund  purchasing  an option may lose the entire amount of the premium
         plus related transaction costs.


                                      -15-
<PAGE>

    o    If a Fund has  written  a  covered  call  option  and the  price of the
         underlying   security  increases   sufficiently,   the  option  may  be
         exercised.  The Fund will be required  to sell the  security at a price
         below current market value,  with the loss offset only by the amount of
         the premium the Fund received from writing the option.


Redeemable Securities


An issuer of debt securities,  including zero coupon  securities,  often has the
right after a period of time to redeem (call)  securities  prior to their stated
maturity  date,  either at a specific  date or from time to time.  When interest
rates  rise,  an issuer of debt  securities  generally  is less likely to redeem
securities  that were issued at a lower  interest rate, or for a lower amount of
original  issue  discount  in the case of the zero  coupon  securities.  In such
instance,  the period until redemption or maturity of the security may be longer
than the  purchaser  initially  anticipated,  and the  market  value of the debt
security may decline.  If an issuer redeems a security when prevailing  interest
rates  are  relatively  low,  a Fund  may be  unable  to  reinvest  proceeds  in
comparable securities with similar yields.


Mortgage-Backed Securities


The Bond Fund, as well as the All America Fund and Aggressive Equity Fund to the
extent they invest in debt securities, may invest in mortgage-backed securities.
These securities  represent interests in pools of mortgage loans, or they may be
collateralized  mortgage  obligations secured by pools of mortgage loans (CMOs).
Holders of mortgage-backed  securities receive periodic payments that consist of
both interest and principal from the underlying mortgages.

Some   mortgage-backed   securities   are   issued  by   private   corporations.
Mortgage-backed  securities also include securities guaranteed by the Government
National Mortgage  Association  (Ginnie Maes),  securities issued by the Federal
National Mortgage Association (Fannie Maes),  participation  certificates issued
by the Federal Home Loan Mortgage Corporation (Freddie Macs). The timely payment
of  principal  and  interest  is backed by the full faith and credit of the U.S.
Government  (full faith and credit) in the case of Ginnie Maes,  but Fannie Maes
and Freddie Macs are not full faith and credit obligations.


Risks From Mortgage-Backed Securities.  Characteristics  of underlying  mortgage
pools will vary, and it is not possible to precisely  predict the realized yield
or  average  life  of a  particular  mortgage-backed  security,  because  of the
principal prepayment feature inherent in the security.


    o    A decline in interest  rates may lead to  increased  prepayment  of the
         underlying  mortgages,  and the  securityholder  may  have to  reinvest
         proceeds received at lower yields. Unscheduled or early payments on the
         underlying   mortgages  may  shorten  the   effective   maturity  of  a
         mortgage-backed  security  and could  negatively  affect  the yield and
         price of the security.

    o    An increase in interest  rates may lead to prepayment of the underlying
         mortgages  over  a  longer  time  period  than  was  assumed  when  the
         mortgage-backed  security was purchased, and the securityholder may not
         receive  payments  to  reinvest  at higher  rates of  return.  Delay in
         payments  on  the  underlying  mortgages  may  lengthen  the  effective
         maturity  of the  security  and could  negatively  affect the price and
         yield of the security.

    o    Mortgage-backed  securities  issued by private  corporations  generally
         will have more credit risk than  securities  issued by U.S.  Government
         agencies. Freddie Mac and Fannie Mae mortgage-backed securities,  which
         are not full faith and credit  obligations,  may have more  credit risk
         than Ginnie Mae securities.


                                      -16-
<PAGE>

--------------------------------------------------------------------------------
INFORMATION ABOUT FUND SHARES
--------------------------------------------------------------------------------

Pricing of Funds' Shares
--------------------------------------------------------------------------------

The purchase or redemption price of a Fund share is equal to its net asset value
that we next  calculate  after we receive the purchase or  redemption  order.  A
Fund's  net  asset  value  per  share is  equal  to the sum of the  value of the
securities it holds plus any cash or other assets  (including  accrued  interest
and dividends),  minus all liabilities  (including  accrued expenses) divided by
the number of shares  outstanding.  The  Adviser  determines  a Fund's net asset
value as of the close of trading on the New York Stock  Exchange on each day the
New York Stock  Exchange is open for trading (a  Valuation  Day).  The  Exchange
usually closes at 4:00 p.m. Eastern Time but sometimes closes earlier.

    o In determining a Fund's net asset value, the Adviser uses market value.

    o    If a money market security has a remaining maturity of 60 days or less,
         the  Adviser  will  use the  amortized  cost  method  of  valuation  to
         approximate  market value (the Adviser assumes  constant  proportionate
         amortization in value until maturity of any discount or premium).

    o    If there are any equity or debt  securities  or assets for which market
         quotations are not readily  available,  the Adviser will use fair value
         pricing, as determined in good faith by, or under the direction of, the
         Board of Directors of the Investment Company.

Purchases of Fund Shares
--------------------------------------------------------------------------------

Only institutional  investors may purchase Fund shares.  Institutional investors
include  endowments,  foundations,  corporations,  not-for-profit  corporations,
municipalities  and other public  entities and trusts.  There is no sales charge
for the purchase of Fund shares.

Mutual of America  Securities  Corporation,  320 Park Avenue, New York, New York
10022 (the  Distributor),  is the principal  underwriter and distributor of Fund
shares.  The Distributor has field offices  throughout the United States for the
offering and sale of shares of the Investment Company's Funds.

A shareholder  must pay the purchase  amount by wire transfer of Federal  Funds.
Wire  transfers for purchases  should be made on any day on which the Investment
Company, Federal Reserve Bank of New York and the Investment Company's custodian
and transfer  agent are open and the New York Stock  Exchange is open. If a wire
transfer  is made on a day  the  New  York  Stock  Exchange  is  closed  but the
Investment  Company's transfer agent is open (such as Good Friday), the purchase
will be effective as of the next Valuation Day (see definition under "Pricing of
Funds' Shares" above).

The  Investment  Company  reserves  the right to reject any purchase  order,  to
increase or decrease the minimum required initial and subsequent investments and
to waive the minimum for an initial investment or for subsequent investments.


                                      -17-
<PAGE>

How to Purchase Shares of the Funds
--------------------------------------------------------------------------------

Application:              A prospective  purchaser must complete an application,
                          including any required  resolutions,  attached to this
                          Prospectus.  You may obtain additional applications by
                          calling the Investment Company at 1-800-914-8716.

Application Delivery:     A  prospective  purchaser  should  deliver a completed
                          application  to a  registered  representative  of  the
                          Distributor.  Registered representatives are employees
                          of Mutual of America Life Insurance Company.

Application Approval:     After the  Investment  Company  and  Distributor  have
                          approved an application, the registered representative
                          (or  the   Investment   Company)   will   notify   the
                          prospective   purchaser  that  the  account  has  been
                          established  and that the  purchaser  may transmit the
                          initial purchase amount.

Minimum Purchase:         A shareholders'  initial  purchase must total at least
                          $25,000,  and subsequent purchases must total at least
                          $5,000.

Wire Transfer of Funds:   An  investor  must send all  purchase  amounts by wire
                          transfer of Federal Funds to the Investment  Company's
                          account at its transfer  agent,  on a day the New York
                          Stock  Exchange  is open for  trading.  Your  bank may
                          charge  you a fee  for  the  wire  transfer.  You  may
                          contact  the   Investment   Company  by  telephone  at
                          1-800-914-8716 between the hours of 9:00 a.m. and 9:00
                          p.m.  Eastern  Time,  Monday  through  Friday  on  any
                          business  day,  to  advise  of  an  anticipated   wire
                          transfer.  Your bank  should wire funds  according  to
                          these instructions:

<TABLE>
<CAPTION>
                          State Street Bank and Trust Company
                          Boston, Massachusetts 02101
                          ABA #011-000028
                          BNF = AC-49097181, Mutual Funds F/B/O Mutual of America
                          OBI = Purchaser:                Acct. No.:
                          <S>                             <C>
                          $        to Equity Index Fund   $      to All America Fund
                          $        to Mid-Cap Equity      $      to Aggressive Equity Fund
                                      Index Fund
                          $        to Bond Fund           $      to Money Market Fund
</TABLE>

                          Your funds may be  returned  to you if the  Investment
                          Company or its transfer agent does not have sufficient
                          information  to insure the correct  processing  of the
                          funds  or  if  your   application  has  not  yet  been
                          approved.

Receipt of Order:         Wire transfer funds received by the Investment Company
                          in its account  prior to 4:00 p.m.  Eastern  Time on a
                          Valuation  Day will be  considered  received that day.
                          Purchase amounts received after 4:00 p.m. Eastern Time
                          will be considered received on the next Valuation Day.

Wire Transfer Days:       Wire  transfers for the purchase of Fund shares can be
                          made on days when banks (including the transfer agent)
                          and the New York Stock Exchange are open for business.
                          The Investment Company anticipates that wire transfers
                          cannot  be  made on  Saturdays  and  Sundays,  and the
                          holidays  of  Martin  Luther  King,   Jr.'s  Birthday,
                          Presidents'   Day,   Good   Friday,    Memorial   Day,
                          Independence Day, Labor Day,  Columbus Day,  Veterans'
                          Day,  Thanksgiving  Day,  Christmas Day and New Year's
                          Day.


                                      -18-
<PAGE>

Redemptions of Fund Shares
--------------------------------------------------------------------------------

A  shareholder  at any time may redeem  (sell)  shares of the  Fund(s)  that the
shareholder  owns. There is no deferred sales charge when a shareholder  redeems
shares of the Funds.

If a shareholder's  redemption  order is received by 4:00 p.m. Eastern Time on a
Valuation Day (see definition under "Pricing of Funds' Shares"),  the redemption
proceeds  usually will be transmitted on a trade  date-plus-one  basis (the next
Valuation Day). Wire Transfers of redemption proceeds cannot be made on days the
transfer agent is closed.  See "Wire Transfer Days" above under "How to Purchase
Shares of the Funds".

We pay  redemption  proceeds  normally  within  seven  days  of  receipt  of the
redemption request,  unless the Investment Company suspends or delays payment of
redemption proceeds as permitted in accordance with SEC regulations.

A shareholder  will receive  redemption  proceeds in cash  deposited to its bank
account,  except that the Investment Company reserves the right to redeem shares
by the delivery,  in whole or in part, of readily marketable  securities instead
of cash when a shareholder's  redemption proceeds total more than 10% of the net
asset value of a Fund.

The Investment  Company reserves the right to change or waive the minimum amount
for a redemption, which currently is $5,000. The Investment Company reserves the
right to redeem,  upon not less than 30 days'  written  notice,  all shares in a
shareholder's  Fund account when the aggregate  value of the shares is less than
$5,000.

Exchanges of Fund Shares
--------------------------------------------------------------------------------

A  shareholder  may exchange  shares of one Fund for shares of another  Fund. An
exchange is the  redemption of the shares from one Fund and the  application  of
the redemption proceeds to the immediate purchase of shares of another Fund on a
Valuation Day.

The  Investment  Company  may  terminate  or modify  the  terms of the  exchange
privilege upon 30 days' written notice to shareholders.  The Investment  Company
may refuse to  implement  the  purchase  side of any  exchange  request  that it
concludes  is based on a market  timing  or  asset  allocation  strategy  if the
Investment Company determines the exchange would be disruptive to a Fund.

The Investment  Company reserves the right to change or waive the minimum amount
for an exchange, which currently is $5,000.

How to Place a Redemption or Exchange Order
--------------------------------------------------------------------------------

Who May  Give an  Order:  Only  a  shareholder's   authorized   person  using  a
                          Personal  Identification  Number  (PIN)  that  we have
                          assigned  may  place a  redemption  order or  exchange
                          order. A shareholder  must list authorized  persons in
                          the initial application to purchase Fund shares, in an
                          amended  application,  or in another written form that
                          is acceptable to the Investment Company.

Minimum Amount:           A  redemption  or exchange  order must be for at least
                          $5,000.

Orders by  Telephone:     A shareholder may place a redemption or exchange order
                          by telephone if the shareholder elected the option for
                          telephone   orders  in  its  initial   application  to
                          purchase Fund shares or in an amended  application.

                          A shareholder  should  call the  Investment Company at
                          1-800-914-8716 between the hours of 9:00 a.m. and 9:00
                          p.m.  Eastern  Time,  Monday  through  Friday  on  any
                          Valuation  Day to place  an  order.  If a  shareholder
                          places a redemption or exchange  order after 4:00 p.m.
                          Eastern  Time on a  Valuation  Day or on a day that is
                          not a  Valuation  Day,  the order  will be  considered
                          received on the next Valuation Day.


                                      -19-
<PAGE>

                          The Investment  Company will verify the  shareholder's
                          name,  the PIN assigned by the  Investment  Company to
                          the authorized  person calling for the account and the
                          shareholder's  account  number,  and record  telephone
                          requests.

                          The Investment  Company and the Funds'  transfer agent
                          will  not  be  liable  for  any  losses  or   expenses
                          resulting  from any  telephone  redemption or exchange
                          order  reasonably  believed  to be  genuine or for the
                          inability of a shareholder to make a telephone request
                          on any particular day. The Investment Company reserves
                          the right to add to or modify  its  procedures  in the
                          future.

Orders In  Writing:       A  shareholder  may  make  a  redemption  or  exchange
                          request in writing.  The shareholder  must specify the
                          account name, the account number,  the Fund from which
                          shares are to be redeemed, the dollar amount or number
                          of shares to be redeemed, and for exchange orders, the
                          Fund or Funds whose shares will be purchased  with the
                          exchange proceeds.

                          The  necessary  authorized  person(s)  must  sign  the
                          order,  and each signer  should  print his or her name
                          and title under the signature.

                          A shareholder  should send a written request to Mutual
                          of America Institutional Funds, Inc., 320 Park Avenue,
                          New York,  New York 10022.  A  shareholder  may send a
                          written   request  to  the  Regional   Office  of  the
                          Distributor,  which will  forward  the  request to the
                          Investment  Company.  The  Valuation Day for the order
                          will  be the  Valuation  Day  the  Investment  Company
                          receives the request at its 320 Park Avenue offices.

Redemption Proceeds:      A shareholder will receive redemption proceeds by wire
                          transfer of Federal  Funds to the bank account  stated
                          in the  shareholder's  initial  application,  or in an
                          amended  application.  An  authorized  person  may not
                          specify a different bank account by telephone.

Exchange Proceeds:        The  proceeds  from  the  shares  of  the  Fund  being
                          exchanged are immediately  applied for the purchase of
                          shares in another Fund.

Shareholder Reports and Confirmation Statements
--------------------------------------------------------------------------------

The Investment Company, on behalf of the Distributor,  will send to shareholders
confirmation statements for each purchase, exchange or redemption transaction. A
confirmation  statement  will show the Fund,  number of shares,  order date, net
asset value per share and dollar amount for the transaction.  A shareholder must
report any error on a confirmation  statement within two weeks after the mailing
or other transmission of the statement to the shareholder.

The Investment Company will send each shareholder a quarterly  statement,  which
will include Fund shares purchased,  exchanged or redeemed during the month, the
net asset value per share and total dollar amount for each transaction,  and the
shareholder's account balance in each Fund at the end of the period.

Dividends, Capital Gains Distributions and Taxation of Funds
--------------------------------------------------------------------------------

For each Fund, the Investment  Company declares dividends at the end of June and
end of December to pay out all or substantially all of the Fund's net investment
income  (dividends)  and  declares  dividends  at the end of December to pay out
substantially  all of the Fund's net realized  short and long term capital gains
(capital  gains  distributions).  A Fund  may  make a  special  distribution  in
September  of each year to comply with Federal tax law  requirements  for mutual
funds.


                                      -20-
<PAGE>

A shareholder  may elect,  in its  application  to purchase Fund shares or in an
amended application, to:

    o    automatically  reinvest  dividends  and  distributions  from a Fund  in
         additional shares of the Fund;

    o    receive dividends and distributions in cash; or

    o    automatically  reinvest  dividends from any Fund in shares of the Money
         Market Fund.

A Fund is not subject to Federal income tax on ordinary  income and net realized
capital gains that it distributes to shareholders, as long as the Fund satisfies
Federal tax law provisions, including certain minimum distribution requirements.
Each Fund is treated as a separate  corporation  for Federal income tax purposes
and must satisfy the tax requirements independently.

Shareholder Taxation
--------------------------------------------------------------------------------

Each  shareholder  should consult its own tax adviser about the Federal,  state,
local and, if applicable,  foreign tax consequences of investing in Fund shares,
because  investors'  tax  situations  will vary.  Below are general  rules about
Federal income taxation for an investor to consider.

When a shareholder  redeems  (sells) shares of a Fund,  including in an exchange
transaction,  the  shareholder  will have a gain or a loss on its  investment in
those shares.

    o    If the  shareholder  owned the  shares  sold for more  than a year,  it
         generally will have a long-term capital gain or loss.

    o    If the shareholder owned the shares sold for less than a year, any gain
         will be short-term  capital gain taxable at ordinary income rates,  and
         any loss may be subject to special tax rules.

When  a  shareholder  receives  dividends  or  distributions  from a  Fund,  the
shareholder  (unless  it is exempt  from  taxation)  will owe tax on the  amount
received,  even if the  shareholder  automatically  reinvests  the  dividend  or
distribution in additional Fund shares. A shareholder will receive  dividends or
distributions when declared and paid by a Fund, even if the shareholder has only
recently purchased Fund shares.

    o    Ordinary  income rates apply to a Fund's  dividends of ordinary  income
         and net realized short-term capital gains.

    o    Capital  gain rates  apply to a Fund's  distributions  of net  realized
         long-term capital gains.

    o    A potential  investor should consider the tax impact of purchasing Fund
         shares when the Fund is expected to pay dividends or  distributions  in
         the near future.


Mutual of America invested in each Fund when it began operations.  A Fund (other
than the Money  Market Fund) may realize  investment  gains that are included in
the dividends or  distributions  to shareholders  when Mutual of America redeems
all or any portion of its investment.


Withholding  For Federal  Income Taxes.  A  shareholder  on its  application  to
purchase  Fund shares may make  representations  and provide  information  to be
exempt from  withholding  for  Federal  income tax on the  Investment  Company's
distributions and dividends and payment of redemption  proceeds.  U.S. corporate
shareholders  and certain other entities named in the Internal  Revenue Code are
exempt from withholding under certain circumstances.

The Investment Company will withhold for Federal income tax if:

    o    a  shareholder  has not  provided  a  correct  taxpayer  identification
         number, or

    o    a  shareholder  has not made the  certifications  required to be exempt
         from withholding, or

    o    the  Investment  Company or the  shareholder  has been  notified by the
         Internal  Revenue  Service that the  shareholder  is subject to back-up
         withholding.

A shareholder may credit any amount  withheld by the Investment  Company against
the Federal income tax liability of the shareholder.

Each January,  the Investment  Company will provide reports to Fund shareholders
of the Federal  income tax status of  distributions  and  dividends  made by the
Funds during the previous year.


                                      -21-
<PAGE>

--------------------------------------------------------------------------------
Financial Highlights
--------------------------------------------------------------------------------

The financial  highlights  tables are intended to help you understand the Funds'
financial  performance.  They  show  performance  for  the  period  of a  Fund's
operations,  because the Funds have operated less than five years.  (The Mid-Cap
Equity Index and Aggressive  Equity Funds began  operations on September 1, 2000
and are not shown below.) Certain  information  reflects financial results for a
single Fund share.

The total returns in the table  represent  the rate that an investor  would have
earned or lost on an investment in the particular Fund (assuming reinvestment of
all dividends and  distributions).  This  information has been audited by Arthur
Andersen  LLP,  whose  report,  along with the  Investment  Company's  financial
statements, are included in the annual report, which is available upon request.

All America Fund
--------------------------------------------------------------------------------

<TABLE>
<CAPTION>

                                                            Six Months
                                                               Ended           Year Ended December 31,
                                                           June 30, 2000   -------------------------------
                                                            (unaudited)    1999    1998     1997     1996*
                                                           ------------    -----   -----    -----    -----
<S>                                                           <C>         <C>     <C>      <C>      <C>
Net Asset Value, Beginning of Period/Year                     $16.47      $15.08  $12.65   $10.98   $10.00
                                                              ------      ------  ------   ------   ------

Income From Investment Operations:
  Net Investment Income                                          .05         .09     .07      .08      .06
  Net Gains or Losses on Securities
    (realized and unrealized)                                    .73        3.81    2.57     2.77      .98
                                                              ------      ------  ------   ------   ------
    Total From Investment Operations                             .78        3.90    2.64     2.85     1.04
                                                              ------      ------  ------   ------   ------
Less Dividend Distributions:
  From net investment income                                    (.05)       (.08)   (.08)    (.08)    (.06)
  From capital gains                                              --       (2.43)   (.13)   (1.10)      --
                                                              ------      ------  ------   ------   ------
    Total Distributions                                         (.05)      (2.51)   (.21)   (1.18)    (.06)
                                                              ------      ------  ------   ------   ------
Net Asset Value, End of Period/Year                           $17.20      $16.47  $15.08   $12.65   $10.98
                                                              ======      ======  ======   ======   ======
Total Return(a)                                                  4.7%       26.0%   21.0%    26.0%    10.4%

Ratios/Supplemental Data
Net Assets, End of Period/Year ($ millions)                    $68.7      $ 72.4  $ 70.8   $ 56.7   $ 55.5
Ratio of Net Investment Income to Average Net Assets             .57%(b)     .51%    .55%     .59%     .95%(b)
Ratio of Expenses to Average Net Assets                          .81%(b)     .85%    .84%     .84%     .87%(b)
Ratio of Expenses to Average Net Assets after
  Expense Reimbursement                                .         .81%(b)      84%    .82%     .81%     .85%(b)
Portfolio Turnover Rate(c)                                     46.10%      34.89%  41.25%   35.96%    9.33%
</TABLE>


-------------
* Commenced operations May 1, 1996.
See footnotes on page 24.


                                      -22-
<PAGE>

Equity Index Fund
--------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                                  Six Months Ended
                                                                    June 30, 2000          Year Ended
                                                                     (unaudited)       December 31, 1999*
                                                                  ----------------     ------------------
<S>                                                                    <C>                   <C>
Net Asset Value, Beginning of Period/Year                              $10.80                $10.00
                                                                       ------                ------
Income From Investment Operations:
  Net Investment Income                                                   .05                   .08
  Net Gains or Losses on Securities (realized and unrealized)            (.10)                  .82
                                                                       ------                ------
    Total From Investment Operations                                     (.05)                  .90
                                                                       ------                ------
Less Dividend Distributions:
  From net investment income                                             (.05)                 (.08)
  From capital gains                                                       --                  (.02)
                                                                       ------                ------
    Total Distributions                                                  (.05)                 (.10)
                                                                       ------                ------
Net Asset Value, End of Period/Year                                    $10.70                $10.80
                                                                       ------                ------
Total Return(a)                                                           (.5)%                 9.0%

Ratios/Supplemental Data
Net Assets, End of Period/Year ($ millions)                            $36.20                 $29.5
Ratio of Net Investment Income to Average Net Assets                      .98%(b)              1.22%(b)
Ratio of Expenses to Average Net Assets                                   .64%(b)               .63%(b)
Ratio of Expenses to Average Net Assets after
   Expense Reimbursement                                                  .33%(b)               .32%(b)
Portfolio Turnover Rate(c)                                               1.53%                 5.67%
</TABLE>


-------------
* Commenced operations May 3, 1999.
See footnotes on page 24.


Bond Fund
--------------------------------------------------------------------------------

<TABLE>
<CAPTION>


                                                            Six Months
                                                               Ended           Year Ended December 31,
                                                           June 30, 2000   -------------------------------
                                                            (unaudited)    1999    1998     1997     1996*
                                                           -------------   -----   -----    -----   ------
<S>                                                            <C>        <C>     <C>      <C>      <C>
Net Asset Value, Beginning of Period/Year                      $9.45      $10.41  $10.41   $10.13   $10.01
                                                               -----      ------  ------   ------   ------
Income From Investment Operations:
  Net Investment Income                                          .36         .60     .61      .59      .38
  Net Gains or Losses on Securities
    (realized and unrealized)                                   (.13)       (.87)    .24      .29      .12
                                                               -----      ------  ------   ------   ------
Total From Investment Operations                                 .23        (.27)    .85      .88      .50
                                                               -----      ------  ------   ------   ------
Less Dividend Distributions:
  From net investment income                                    (.32)       (.60)   (.62)    (.59)    (.38)
  From capital gains                                              --        (.09)   (.23)    (.01)      --
                                                               -----      ------  ------   ------   ------
    Total Distributions                                         (.32)       (.69)   (.85)    (.60)    (.38)
                                                               -----      ------  ------   ------   ------
Net Asset Value, End of Period/Year                           $ 9.36      $ 9.45  $10.41   $10.41   $10.13
                                                              ======      ======  ======   ======   ======

Total Return(a)                                                  2.4%       (3.5)%   8.3%     8.9%     5.0%

Ratios/Supplemental Data
Net Assets, End of Period/Year ($ millions)                   $ 27.0      $ 28.7  $ 25.2   $ 22.1   $ 21.0
Ratio of Net Investment Income to Average Net Assets            7.32%(b)    6.23%   5.84%    5.69%    5.63%(b)
Ratio of Expenses to Average Net Assets                          .97%(b)     .93%    .97%    1.00%     .90%(b)
Ratio of Expenses to Average Net Assets After
    Expense Reimbursement                                        .70%(b)      70%    .70%     .70%     .70%(b)
Portfolio Turnover Rate(c)                                     18.29%      10.07%  33.32%   56.18%   17.85%
</TABLE>

-------------
* Commenced operations May 1, 1996.
See footnotes on page 24.


                                      -23-
<PAGE>

Money Market Fund
--------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                                  Six Months
                                                                     Ended         Year Ended December 31,
                                                                 June 30, 2000    ------------------------
                                                                  (unaudited)      1999     1998     1997*
                                                                 -------------    ------   ------   ------
<S>                                                                  <C>          <C>      <C>      <C>
Net Asset Value, Beginning of Period/Year                            $10.39       $10.23   $10.15   $10.00
                                                                     ------       ------   ------   ------
Income From Investment Operations:
  Net Investment Income                                                 .29          .50      .52      .35
  Net Gains or Losses on Securities
    (realized and unrealized)                                            --           --       --       --
                                                                     ------       ------   ------    -----
    Total From Investment Operations                                    .29          .50      .52      .35
                                                                     ------       ------   ------    -----
Less: Dividend Distributions
    From Net Investment Income                                         (.24)        (.34)    (.44)    (.20)
                                                                     ------       ------   ------    -----
    Total Distributions                                                (.24)        (.34)    (.44)    (.20)
                                                                     ------       ------   ------    -----
Net Asset Value, End of Period/Year                                  $10.44       $10.39   $10.23   $10.15
                                                                     ======       ======   ======   ======

Total Return(a)                                                         2.9%         4.9%     5.3%     3.5%

Ratios/Supplemental Data
Net Assets, End of Period/Year ($ millions)                          $ 40.7        $30.2    $ 6.5    $ 7.5
Ratio of Net Investment Income to Average Net Assets                   5.72%(b)     4.86%    5.14%    5.17%(b)
Ratio of Expenses to Average Net Assets                                 .61%(b)     1.02%    3.21%    2.47%(b)
Ratio of Expenses to Average Net Assets after
   Expense Reimbursement                                                .40%(b)      .40%     .40%     .40%(b)
Portfolio Turnover Rate(c)                                              N/A          N/A      N/A      N/A
</TABLE>


-------------
*    Commenced operations May 1, 1997
(a)  Not annualized. Total return would have been lower had certain expenses not
     been reduced through expense reimbursement (Note 2).
(b)  Annualized.
(c)  Portfolio turnover rate excludes short-term securities.
N/A  Not Applicable


                                      -24-
<PAGE>

                               Investment Company
                               -------------------

                   Mutual of America Institutional Funds, Inc.

                                   Distributor
                                   -----------

                    Mutual of America Securities Corporation

                               Investment Adviser
                               ------------------

                Mutual of America Capital Management Corporation

                Subadvisers for a portion of the All America Fund
                -------------------------------------------------

                           Fred Alger Management, Inc.
                              Oak Associates, Ltd.

                              Independent Auditors
                              --------------------

                               Arthur Andersen LLP

                                     Counsel
                                     -------

                      Swidler Berlin Shereff Friedman, LLP

                                    Custodian
                                    ---------

                            The Chase Manhattan Bank

                                 Transfer Agent
                                 --------------

                       State Street Bank and Trust Company

                The Investment Company sells shares of its Funds
                        only to institutional investors.


<PAGE>

MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.

320 Park Avenue, New York, New York 10022                         1-800-914-8716

You May Obtain More Information
--------------------------------------------------------------------------------

Registration   Statement.  We  have  filed  with  the  Securities  and  Exchange
Commission  (the  Commission)  a  Registration  Statement  about the  Investment
Company.  The Registration  Statement  includes this prospectus,  a Statement of
Additional  Information  (the SAI),  and exhibits.  You may examine and copy the
Registration  Statement at the Commission's Public Reference Room in Washington,
DC.  You may call  1-800-SEC-0330  to learn  about the  operation  of the Public
Reference Room.

Statement of Additional  Information.  The SAI contains  additional  information
about the Investment  Company and its Funds.  We  incorporate  the SAI into this
Prospectus by reference.

Semi-Annual  and  Annual  Reports.   Additional  information  about  the  Funds'
investments  is available in the  Investment  Company's  annual and  semi-annual
reports to shareholders.  In the annual reports, you will find a discussion (for
all Funds except the Money Market Fund) of the market  conditions and investment
strategies that  significantly  affected the Funds'  performance during its last
fiscal year.

How To Obtain the SAI and  Reports.  You may obtain a free copy of the SAI or of
the  Investment   Company's  most  recent  annual  and   semi-annual   financial
statements, by:

    o  writing to us at 320 Park Avenue, New York, NY 10022, Attn: Institutional
       Funds, or


    o  calling  1-800-914-8716  and asking  for Mutual of America  Institutional
       Funds, Inc.


The  Commission has an Internet web site at  http://www.sec.gov.  You may obtain
the  Investment  Company's  Registration  Statement,  including the SAI, and its
semi-annual and annual reports through the Commission's  Internet site. You also
may obtain copies of these documents, upon your payment of a duplicating fee, by
writing to the Commission's Public Reference Section, Washington, DC 20549-6009.

Where To Direct  Questions.  If you have  questions  about the operations of the
Investment Company,  you should contact your representative at Mutual of America
Securities  Corporation.  You may call  1-800-914-8716 for the address and phone
number of the office nearest you.

Investment Company Act of 1940 Act File Number 811-8922

--------------------------------------------------------------------------------
Prospectus dated September 1, 2000

<PAGE>

MUTUAL OF AMERICA
INSTITUTIONAL FUNDS, INC.

320 PARK AVENUE
NEW YORK NY 10022-6839

Application and Authorization Form

|_| Initial      Distributor:
|_| Amendment    Mutual of America Securities Corporation
                 Member NASD/SIPC
                 320 Park Avenue, New York, NY 10022-6839

---------------------------
     Taxpayer ID Number

___________________________
 (Account Number Assigned)

-----------------------------
1. Applicant's Account
   Identification
   Please print

________________________________________________________________________________
FULL LEGAL NAME OF INSTITUTION (OWNER OF ACCOUNT)              TELEPHONE NUMBER

________________________________________________________________________________
ADDRESS                                                        FAX NUMBER

________________________________________________________________________________
CITY                                             STATE                 ZIP CODE

________________________________________________________________________________
TO THE ATTENTION OF (NAME AND TITLE)

________________________________________________________________________________
NAME, TITLE AND ADDRESS OF PERSON TO RECEIVE |_| TAX REPORTS
                                             |_| DUPLICATE CONFIRMATIONS

________________________________________________________________________________

-----------------------------
2. Type of Entity
   Check applicable boxes,
   and fill in blanks

|_| Endowment   |_| Not-for-Profit Corporation   |_| Foundation  |_| Corporation

|_| Trust       |_| Partnership (general) (limited) Circle one

|_| Other ______________________________________________________________________

Year entity started _____________ State where formed ___________________________

-----------------------------
3. Investment Objectives

Identify  the  Funds of  Mutual  of  America  Institutional  Funds,  Inc.  whose
investment   objectives  are  consistent  with  Applicant's  current  investment
objectives: Check appropriate box(es) below.

|_|   Equity Index Fund - investment  results that  correspond to the investment
      performance of the S&P 500 Index

|_|   All America Fund - total return by capital growth and, to a lesser extent,
      current income

|_|   Mid-Cap  Equity Index Fund - investment  results  that  correspond  to the
      investment performance of the S&P MidCap 400 Index

|_|   Aggressive  Equity Fund - capital  appreciation by investing  primarily in
      growth and value common stocks

|_|   Bond  Fund - current  income  with  preservation  of  capital a  secondary
      objective

|_|   Money Market Fund - current income to extent  consistent  with  liquidity,
      investment quality and stability of capital

Do you expect to redeem  Fund  shares,  other than from the Money  Market  Fund,
within  30 to 60 days from the date of  initial  investment  to meet  short-term
liquidity needs? |_| Yes |_| No

-----------------------------
4. Initial Investment in
   Fund Portfolios
   By wire transfer only

Total Investment $____________________ (minimum $25,000 unless waived by
                                       Institutional Fund)

Equity Index $_____________________________ All America $_______________________

Mid-Cap Equity Index $_____________________ Aggressive Equity $_________________

Bond $_____________________________________ Money Market $______________________


<PAGE>

-----------------------------
5. Telephone Redemption
   and Exchange Requests
   Check one box


|_|   Redemption  and exchange  requests may be made by telephone by  Authorized
      Persons  (Item 8 below) or any  person  reasonably  believed  by Mutual of
      America Institutional Funds, Inc. ("the Institutional Fund"), State Street
      Bank and Trust Company ("Transfer Agent"), or Mutual of America Securities
      Corporation ("Distributor") to be an Authorized Person.


|_|   Redemption and exchanges may be made in writing only.

-----------------------------
6. Dividends and
   Distributions
   Check one box


|_|   Pay all dividends and capital gains  distributions  in cash to shareholder
      by wire transfer to account specified in Item 7 of this Application.


|_|   Invest all  dividends and capital  gains  distributions  from all Funds in
      Money Market Fund shares.

|_|   Reinvest all  dividends  and capital  gains  distributions  from a Fund in
      additional Fund shares.

-----------------------------
7. Payment of Proceeds
   to Owner
   Information is required

   May only be changed by
   amendment to Application

All redemption proceeds,  and dividends and capital gains distributions that are
to be paid to  Applicant,  should  be sent by  wire  transfer  to  Applicant  as
follows:

Bank Name ______________________________________________________________________

Address ________________________________________________________________________

City _____________________________________________State _____  Zip Code ________

ABA No. ________________________________________________________________________

Branch Name (if any) and ABA No. _______________________________________________

-----------------------------
8. Authorized Persons

   May only be changed by
   amendment to Application

The following  persons have the right and authority to give  instructions and to
take actions as Authorized  Persons as contemplated in this  Application and the
prospectus  of the  Institutional  Fund,  each  Authorized  person has been duly
elected or appointed and legally holds the office or position specified, and the
signature set forth  opposite the name of each  Authorized  Person is a true and
correct specimen. --attach pages if necessary--

Name and Title (Please print)               Signature

__________________________________          ____________________________________

__________________________________          ____________________________________

__________________________________          ____________________________________

-----------------------------
9. Confirmation
   Statements, Telephone
   Recording

Each report of the  execution of an order and  statement of the account shall be
conclusive  if  Applicant  does not notify the  Institutional  Fund of any error
within two weeks after the  mailing or other  transmission  of such  document to
Applicant.  Applicant  authorizes the Institutional Fund, Transfer Agent and the
Distributor,  each in their discretion and without prior notice to Applicant, to
record and/or monitor  telephone  conversations  in connection with  Applicant's
account and transactions in Fund shares.

<PAGE>

-----------------------------
10. Certificate of Authority

By  signing  this  Application  and  delivering  it to the  Institutional  Fund,
Applicant  represents  and  warrants  that it has the  power  and  authority  to
purchase Fund shares  through the  Distributor,  on the terms and conditions set
forth in this Application and the Institutional Fund prospectus, and each signer
of the  Application  represents and warrants that he (or she) is duly authorized
to sign on behalf of Applicant.


For  Applicant's  use if  needed,  attached  are  forms  of (1)  Certificate  of
Resolutions and Incumbency,  for use by a corporation or other entity that has a
Board of Directors or Board of Trustees,  and (2)  Certificate  of Authority and
Incumbency, for use by a trust, partnership or other unincorporated entity.


-----------------------------
11. Financial Information
    Give approximate amounts


Annual Income/Revenue: $_____________ Current Securities Portfolio: ____________


-----------------------------
12. Investing Information

Does Applicant receive  investment advice for the purchase or sale of securities
from any of the following? Yes |_| No |_| If "Yes" check all that apply:

|_| In-House Investment    |_| Bank Trust Department    |_|   Investment Adviser
      Professionals

|_| Investment Committee   |_| Other:___________________________________________
      of Board

Does Applicant understand the investment risks, including market
risks, of owning shares of the Mutual of America
Institutional Funds?                                              |_| Yes |_| No

Will Applicant redeem holdings in any mutual fund, certificate
of deposit or other investment to purchase Institutional
Fund shares?                                                      |_| Yes |_| No

State redemption amount and, if applicable, the total fee or penalty:___________

-----------------------------
13. Investment Experience
    Check the level of
    Applicant's experience in
    securities listed

<TABLE>
<CAPTION>
-------------------------------------------------------------------------------------------------
                              None   Some   Much                               None   Some   Much
<S>                           <C>    <C>    <C>                                <C>    <C>    <C>
Exchange-listed equities                                Government bonds
-------------------------------------------------------------------------------------------------
NASDAQ/OTC equities                                     Equity mutual funds
-------------------------------------------------------------------------------------------------
Corporate bonds                                         Bond mutual funds
-------------------------------------------------------------------------------------------------
</TABLE>

-----------------------------
14. Pre-Dispute Arbitration Agreement

Arbitration  will be used to resolve any  dispute  between  Applicant  (you) and
Mutual of America  Securities  Corporation  (us).  Mutual of America  Securities
Corporation serves as a distributor of shares of Mutual of America Institutional
Funds,  Inc. and may in the future  distribute shares of additional mutual funds
(together, the "Funds"). Arbitration forums were conceived by the Securities and
Exchange  Commission,  the New  York  Stock  Exchange,  Inc.,  and the  National
Association  of  Securities  Dealers,  Inc.  to  provide  a  dispute  resolution
mechanism that is an alternative to court proceedings and that is expected to be
more efficient and less costly than court litigation.

You acknowledge that you are aware of the following aspects of arbitration:

      1.    Arbitration is final and binding on the parties.

      2.    The parties waive their right to seek  remedies in court,  including
            the right to jury trial.

      3.    Pre-arbitration   discovery  is  generally  more  limited  than  and
            different from court proceedings.

      4.    The  arbitrators'  award is not required to include factual findings
            or legal  reasoning,  and any  party's  right to  appeal  or to seek
            modification of rulings by the arbitrators is strictly limited.

      5.    The  panel of  arbitrators  will  typically  include a  minority  or
            arbitrators  who  were or who are  affiliated  with  the  securities
            industry.

<PAGE>

You agree that all  controversies  that may arise  between you and us concerning
any order or transaction, or concerning the continuation,  performance or breach
of the Agreement,  the Application for the purchase of Fund shares, or any other
agreement between you and us, shall be determined by arbitration  before a panel
of  independent  arbitrators  set up by the National  Association  of Securities
Dealers,  Inc.,  conducted  in  accordance  with  the  arbitration  rules of the
National Association of Securities Dealers, Inc. New York law, without regard to
choice of law  provisions,  shall govern and shall be applied by the arbitrators
to any such  controversy.  Punitive  damages,  if any,  shall be  limited to the
maximum  extent  permitted by the National  Association  of Securities  Dealers,
Inc.,  or otherwise  permitted  by law.  You  understand  and  acknowledge  that
judgment  upon any  arbitration  award may be entered in any court of  competent
jurisdiction.

No person shall bring a putative or certified class action to  arbitration,  nor
seek to enforce any pre-dispute arbitration agreement against any person who has
initiated  in court a putative  class  action;  or who is a member of a putative
class who has not opted out of the class with respect to any claims  encompassed
by the putative class action,  until: (1) the class  certification is denied, or
(ii) the class is decertified,  or (iii) the customer is excluded from the class
by the court.  Such  forbearance to enforce an agreement to arbitrate  shall not
constitute  a waiver of any  rights  under this  agreement  except to the extent
stated herein.

-----------------------------
15. Tax Certification
    Check one box

Applicant is a tax-exempt organization:  |_| Yes   |_| No

Important: If Applicant is for any reason subject to backup withholding,  strike
out phrase (2).

Applicant  certifies under penalties of perjury that (1) the number shown in the
Taxpayer ID box above is Applicant's correct taxpayer identification number; and
(2)  Applicant  is not subject to backup  withholding  because (a)  Applicant is
exempt from backup  withholding,  or (b)  Applicant has not been notified by the
IRS that it is subject to backup  withholding as a result of a failure to report
all interest or dividends,  or (c) the IRS has notified the Applicant that it is
no longer subject to backup withholding.

-----------------------------
16. Acceptance and
    Signature(s)

    Do not wire funds until
    you have been notified of
    Application approval

The Applicant affirms that: it has received the prospectus for the Institutional
Fund;  the  information  and   certifications  set  forth  in  this  Application
(amendment) are true and correct, and the Institutional Fund, the Transfer Agent
and the  Distributor are entitled to rely on them until the  Institutional  Fund
receives  actual written notice in accordance  with its procedures of any change
to the  information  and/or  certifications;  and  Applicant  has  reviewed  the
Pre-Dispute  Arbitration  Agreement  in Paragraph 14 and agrees to its terms and
has reviewed the tax certification in Paragraph 15.

APPLICANT_______________________________________________________________________

By:____________________________   ______________________________  Date:_________
   Signature                      Print Name and Title of Authorized Person

By:____________________________   ______________________________  Date:_________
   Signature [If required]        Print Name and Title of Secretary or Other
                                  Authorized Person

(seal)

--------------------------------------------------------------------------------
  THE FOLLOWING IS TO BE COMPLETED BY MUTUAL OF AMERICA SECURITIES CORPORATION
--------------------------------------------------------------------------------

Did Consultant solicit the Applicant's purchase of Mutual of
America Institutional Funds, Inc., shares?                        |_| Yes |_| No

How long has Consultant known Applicant? _____________________ (Months or Years)

Consultant  represents and certifies that: (1) based on the information provided
to  me  by  Applicant,   the  purchase  of  shares  of  the  Mutual  of  America
Institutional  Funds, Inc. (the "Funds") is suitable for the Applicant's  stated
investment  objective(s) and financial position;  (2) the Applicant has received
the  current  prospectus  for the Funds and any  supplements  thereto;  (3) I am
properly licensed with Mutual of America Securities Corporation at the state and
federal  levels  to sell  shares  of the  Funds  to  Applicant;  (4) when I have
knowledge of any changes or updates to information provided by Applicant, I will
promptly  modify the  records of Mutual of America  Securities  Corporation.  My
suitability determination was based on (check as applicable and attach summaries
of discussions or other information obtained):

|_|  Discussions with Applicant         |_|  Financial or other information
     or Applicant's Adviser                  provided by Applicant or its
                                             Adviser

--------------------------------------------------------------------------------
SIGNATURE OF CONSULTANT, AS                  PRINT NAME                     DATE
REGISTERED REPRESENTATIVE
OF SECURITIES CORP.

--------------------------------------------------------------------------------
SIGNATURE OF REGISTERED                      PRINT NAME                     DATE
PRINCIPAL OF SECURITIES CORP.

--------------------------------------------------------------------------------

<PAGE>

              [For use by a corporation or other entity that has a
                    Board of Directors or Board of Trustees]

                    CERTIFICATE OF RESOLUTIONS AND INCUMBENCY

WHEREAS, the Board of Directors (Trustees) of __________________________________
_________________________________ ("Applicant"), has duly assembled at a meeting
on_______________, 200__, with a quorum at all times present and voting.

NOW, THEREFORE, BE IT RESOLVED THAT:

1.    Any  officer  of   Applicant   holding  one  of  the   following   titles:
      ______________,    ____________________,     _______________________    or
      ________________________, is authorized to:

      (a)   Complete the Application and Authorization Form (the  "Application")
            for the Mutual of America Institutional Funds, Inc. (the "Fund"), in
            the manner the officer deems  appropriate,  sign the Application and
            bind the Applicant to the terms of the Application.

      (b)   Open an investment  account with the Fund through  Mutual of America
            Securities Corporation, as broker-dealer (the "Securities Corp.").

      (c)   Provide  instructions to the Fund or the Securities  Corp. to effect
            securities transactions for the purchase, exchange and redemption of
            shares of any of the Fund's portfolios, amend the Application as the
            officer  deems  appropriate  and  certify  changes  in the names and
            titles of authorized officers.

2.    The Fund, its transfer agent and the Securities Corp. are entitled to rely
      on these authorizing  resolutions until the Applicant has delivered notice
      in writing to Fund of any amendment to, or revocation of, such  authority,
      and they shall be held harmless for relying upon certifications  delivered
      to Fund by Applicant until revoked or modified.

CERTIFICATE: The undersigned Secretary  (other:_____________________________) of
Applicant hereby  certifies that the foregoing  resolutions were duly adopted by
the Board of  Directors  (Trustees)  at a meeting  held on the  ________  day of
______________, 200___ and remain in effect, and that the following persons have
been duly elected or appointed by  Applicant  to the  positions  indicated,  and
their signatures are true specimens:

              Name                    Title                  Signature
              ----                    -----                  ---------

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

Date: ________________ By: __________________________________________(Signature)

                       Print Name:

                       Print Title:

(Corporate Seal)

<PAGE>

              [For use by a trust, general or limited partnership,
                        or other unincorporated entity]

                     CERTIFICATE OF AUTHORITY AND INCUMBENCY

The   undersigned,   as   ____________________   [Trustee(s),    General/Limited
Partner(s),  Officer(s) --specify] of  ___________________________("Applicant"),
does/do hereby certify that:

1.    The  undersigned  is/are  duly  authorized  to make  decisions  to  invest
      Applicant's assets.

2.    Any  person  holding  one  of  the  following  positions  with  Applicant:
      ______________________,  _______________________ or _________________,  is
      authorized to:


      (a)   Complete the Application and Authorization Form (the  "Application")
            for the Mutual of America Institutional Funds, Inc. (the "Fund"), in
            the manner such person deems  appropriate,  sign the Application and
            bind the Applicant to the terms of the Application.


      (b)   Open an investment  account with the Fund through  Mutual of America
            Securities Corporation, as broker-dealer (the "Securities Corp.").


      (c)   Provide  instructions to the Fund or the Securities  Corp. to effect
            securities transactions for the purchase, exchange and redemption of
            shares of any of the Fund's  portfolios,  amend the  Application  as
            such person deems  appropriate  and certify changes in the names and
            titles of authorized persons.


3.    The Fund, its transfer agent and the Securities Corp. are entitled to rely
      on these authorizing  resolutions until the Applicant has delivered notice
      in  writing  to the Fund of any  amendment  to,  or  revocation  of,  such
      authority, and they shall be held harmless for relying upon certifications
      delivered to the Fund by Applicant until revoked or modified.

CERTIFICATE:  The undersigned  certify that each of the following  persons holds
the position or acts in the capacity indicated on behalf of Applicant,  and each
signature is a true specimen:

           Name                    Position                      Signature
           ----                    --------                      ---------

________________________________________________________________________________

________________________________________________________________________________

Date of Certificate: _________________    Signatures below


By: __________________________________    By: __________________________________


Print Name:                               Print Name:

Print Title:                              Print Title:

(Seal) if any

<PAGE>

                                MUTUAL OF AMERICA
                                INSTITUTIONAL
                                FUNDS, INC.

                                EQUITY INDEX FUND

                                ALL AMERICA FUND

                                MID-CAP EQUITY INDEX FUND

                                AGGRESSIVE EQUITY FUND

                                BOND FUND

                                MONEY MARKET FUND

                                Distributed by:

                                MUTUAL OF AMERICA SECURITIES CORPORATION
                                320 PARK AVENUE
                                NEW YORK, NY 10022-6839
                                ................................................

                                Investment Adviser
                                MUTUAL OF AMERICA CAPITAL MANAGEMENT CORPORATION

                                Transfer and Shareholder Services Agent
                                STATE STREET BANK AND TRUST COMPANY

                                Investment Accounting Agent
                                MUTUAL OF AMERICA CAPITAL MANAGEMENT CORPORATION

                                Independent Accountants
                                ARTHUR ANDERSEN LLP

                                Custodian
                                THE CHASE MANHATTAN BANK

<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                    320 PARK AVENUE, NEW YORK, NEW YORK 10022
                                 (800) 914-8716

                   EQUITY INDEX FUND              AGGRESSIVE EQUITY FUND
                   ALL AMERICA FUND               BOND FUND
                   MID-CAP EQUITY INDEX FUND      MONEY MARKET FUND

                       STATEMENT OF ADDITIONAL INFORMATION
                                September 1, 2000

This Statement of Additional Information is not a prospectus. You should read it
in conjunction with the Mutual of America  Institutional  Funds, Inc. Prospectus
dated  September 1, 2000,  and you should keep it for future use. We incorporate
the Prospectus by reference into this Statement of Additional Information.

A copy of the  Prospectus  to which this  Statement  of  Additional  Information
relates is  available  to you at no charge.  To obtain the  Prospectus,  you may
write to Mutual of America  Institutional  Funds,  Inc. at the above  address or
call the telephone number listed above.

                                TABLE OF CONTENTS

                                                                            Page
                                                                            ----
Investment Company's Form of Operations ..................................    2
Investment Strategies and Related Risks ..................................    3
  Additional Permitted Investments .......................................    3
  Additional Investment Strategies .......................................    5
  Additional Information about Specific Types of Securities ..............    9
Fundamental Investment Restrictions ......................................   13
Non-Fundamental Investment Policies ......................................   14
Management of the Investment Company .....................................   15
Investment Advisory Arrangements .........................................   16
Administrative Agreements ................................................   18
Portfolio Transactions and Brokerage .....................................   19
Purchase, Redemption and Pricing of Shares ...............................   20
Taxation of the Investment Company .......................................   22
Taxation of Shareholders .................................................   22
Yield and Performance Information ........................................   24
Description of Corporate Bond Ratings ....................................   27
Distribution of Fund Shares ..............................................   28
Legal Matters ............................................................   28
Independent Auditors .....................................................   28
Custodian ................................................................   28
Use of Standard & Poor's Indexes .........................................   28
Financial Statements .....................................................   29


<PAGE>

INVESTMENT COMPANY'S FORM OF OPERATIONS

History and Operating Form
--------------------------------------------------------------------------------

Mutual of America  Institutional Funds, Inc. (the Investment Company) was formed
on October 27, 1994 as a Maryland  corporation.  It is a  diversified,  open-end
management  investment  company  registered under the Investment  Company Act of
1940 (the 1940 Act).

The Investment  Company issues  separate  classes (or series) of stock,  each of
which represents a separate Fund of investments.  There are currently six Funds:
the Equity Index Fund, All America Fund,  Mid-Cap Equity Index Fund,  Aggressive
Equity Fund, Bond Fund and Money Market Fund.

Offering of Shares
--------------------------------------------------------------------------------

The  Investment  Company is  designed  primarily  as an  investment  vehicle for
endowments, foundations,  corporations,  municipalities or other public entities
and other institutional investors.

Currently,  the  Investment  Company  requires a minimum  initial  investment of
$25,000,  except that the Investment  Company may waive this  requirement in its
discretion. The minimum amount for additional purchases of Fund shares currently
is $5,000.

Description of Shares
--------------------------------------------------------------------------------

The authorized  capital stock of the Investment  Company consists of one billion
shares of common stock, $.01 par value. The Investment Company currently has six
classes (or series) of common stock, and it may establish additional classes and
allocate its  authorized  shares  either to new classes or to one or more of the
existing classes.

The Investment Company reserves the right to redeem, upon not less than 30 days'
written notice,  all shares in a  shareholder's  Fund account when the aggregate
value of the shares is less than $5,000.

All shares of common stock,  of whatever  class,  are entitled to one vote.  The
votes  of all  classes  are  cast  on an  aggregate  basis,  except  that if the
interests of the Funds differ, the voting is on a Fund-by-Fund  basis.  Examples
of matters that would require a Fund-by-Fund vote are changes in the fundamental
investment  policy of a particular Fund and approval of the Investment  Advisory
Agreement or a Subadvisory Agreement for the Fund.

The Investment  Company is not required to hold annual meetings.  It will call a
special  meeting of  shareholders  when a meeting is requested  by  shareholders
holding  at  least  25% of the  outstanding  shares  of the  Investment  Company
entitled  to vote at the  meeting  except  that a meeting  to remove one or more
directors shall be called when requested by 10% of the outstanding shares of the
Investment Company entitled to vote at the meeting.

The shares of each Fund, when issued,  will be fully paid and  nonassessable and
will have no preference,  preemptive,  conversion,  exchange or similar  rights.
Shares do not have cumulative voting rights.

Each issued and outstanding  share in a Fund is entitled to participate  equally
in dividends and  distributions  declared by such Fund and, upon  liquidation or
dissolution,  in the net assets of such Fund  remaining  after  satisfaction  of
outstanding  liabilities.  Accrued liabilities which are not allocable to one or
more Funds will  generally be allocated  among the Funds in  proportion to their
relative net assets. In the unlikely event that any Fund incurred liabilities in
excess of its assets, each other Fund could be liable for such excess.


                                       2
<PAGE>

                    INVESTMENT STRATEGIES AND RELATED RISKS

The Prospectus describes each Fund's principal investment  strategy(ies) and the
related  risks.  You  should  refer to  "Summary  of How Our Funds  Invest"  and
"Details  about How Our Funds  Invest and Related  Risks" in the  Prospectus  to
learn about those strategies and risks.


Additional Permitted Investments
--------------------------------------------------------------------------------

The Investment Company's Funds may use investment  strategies and purchase types
of securities in addition to those discussed in the Prospectus.

Equity Index Fund and Mid-Cap  Equity Index Fund:  In addition to common  stocks
and futures contracts, the Funds may invest in:

    o   money market instruments, and

    o   U.S. Government and U.S. Government agency obligations.

All  America  Fund  -- In  addition  to  common  stocks,  the  Adviser  and  two
Subadvisers  who manage  approximately  40% of the net assets of the All America
Fund (the Active Assets) may invest assets in:

    o   securities  convertible  into  common  stocks,  including  warrants  and
        convertible bonds,

    o   bonds,

    o   money market instruments,


    o   U.S.  Government  and  U.S.  Government  agency  obligations  (including
        mortgage-backed securities),


    o   foreign securities and ADRs,

    o   futures and options contracts, and

    o   preferred stock.

The portion of the All America Fund invested to replicate the S&P 500 Index (the
Indexed Assets) may also be invested in:

    o   money market instruments, and

    o   U.S. Government and U.S. Government agency obligations.

The Adviser may manage cash  allocated to the Active  Assets prior to investment
in securities by the Subadvisers.

Aggressive Equity Fund: In addition to common stocks, the Aggressive Equity Fund
may invest in:

    o   securities  convertible  into  common  stocks,  including  warrants  and
        convertible bonds,

    o   bonds,

    o   money market instruments,


    o   U.S.  Government  and  U.S.  Government  agency  obligations  (including
        mortgage-backed securities),


    o   foreign securities and ADRs,

    o   futures and options contracts, and

    o   preferred stock.


                                       3
<PAGE>

    Bond Fund:  In  addition to  investment  grade debt  securities  of the type
    described in the Prospectus, the Bond Fund may invest in :

    o   asset-backed securities,


    o   non-investment grade securities,


    o   foreign securities,

    o   cash and money market instruments,

    o   stocks acquired  either by conversion of  fixed-income  securities or by
        the exercise of warrants attached to fixed income securities,

    o   preferred stock


    o   options and futures contracts, and


    o   equipment trust certificates.

Money Market Fund: In addition to commercial paper and U.S.  Treasury Bills, the
Fund may  invest  in any of the  following  kinds of money  market  instruments,
payable in United States dollars:

    o   securities  issued  or  guaranteed  by  the  U.S.  Government  or a U.S.
        Government agency or instrumentality;

    o   negotiable  certificates  of  deposit,  bank  time  deposits,   bankers'
        acceptances and other  short-term debt obligations of domestic banks and
        foreign  branches of domestic banks and U.S.  branches of foreign banks,
        which at the time of their most recent annual financial  statements show
        assets in excess of $5 billion;

    o   certificates  of  deposit,  time  deposits  and  other  short-term  debt
        obligations of domestic savings and loan associations, which at the time
        of their most recent annual  financial  statements show assets in excess
        of $1 billion;

    o   repurchase  agreements covering government  securities,  certificates of
        deposit, commercial paper or bankers' acceptances;

    o   variable amount floating rate notes; and

    o   debt securities issued by a corporation.

The Money Market Fund may enter into transactions in options,  futures contracts
and options on futures, contracts on United States Treasury securities.

Under the Money Market Fund's investment  policy,  money market  instruments and
other  short-term debt securities means securities that have a remaining term to
maturity  of up to 13 months (25 months in the case of  government  securities).
The dollar-weighted  average maturity of the securities held by the Money Market
Fund will not exceed 90 days.


The  securities  in the  Money  Market  Fund  must  meet the  following  quality
requirements --


    o   All of the  securities  held by the Money Market Fund must have received
        (or be of comparable quality to securities which have received),  at the
        time of the purchase,  a rating in one of the two highest  categories by
        any two nationally recognized statistical rating agencies; and

    o   At least 95% of the  securities  held by the Money Market Fund must have
        received  (or  be  of  comparable   quality  to  securities  which  have
        received),  at the time of purchase, a rating in the highest category by
        any two such rating agencies.

The Board of  Directors  of the  Investment  Company  must approve or ratify the
purchase of any security (other than any U.S. government  security) that has not
received  a rating or that has been rated by only one  rating  agency.  The Fund
will sell any securities that are subsequently  downgraded below the two highest
categories as soon as practicable, unless the Board of Directors determines that
sale of those securities would not be in the best interests of the Fund.

The Money  Market  Fund  will not  invest  more  than 5% of its total  assets in
securities  of,  or  subject  to puts  from,  any one  issuer  (other  than U.S.
government  securities and repurchase  agreements fully  collateralized  by U.S.
government  securities)  provided  that (a) the Fund may invest up to 10% of its
total assets in securities  issued or guaranteed by a single issuer with respect
to which the Fund has purchased an unconditional put and (b) with respect to 25%
of its total assets the Fund may, with respect to securities meeting the highest
investment criteria, exceed the 5% limit for up to three business days.


                                       4
<PAGE>

Additional Investment Strategies
--------------------------------------------------------------------------------

Lending of Securities

The Funds have the  authority  to lend their  securities,  under the  conditions
described  below.  The Funds will not lend any  securities  until the Investment
Company's Board of Directors  approves a form of securities  lending  agreement.
Refer   to   "Fundamental   Investment    Restrictions",    paragraph   9,   and
"Non-Fundamental  Investment  Policies",  paragraph 9, for  descriptions  of the
fundamental and current restrictions on lending by the Funds.

A Fund may lend its securities,  constituting up to 30% of its total assets,  to
brokers,  dealers and  financial  institutions,  other than any affiliate of the
Investment Company. A Fund may pay reasonable fees to persons  unaffiliated with
the Fund for services or for arranging such loans.

Upon lending  securities,  a Fund must receive as  collateral  cash,  securities
issued  or  guaranteed  by the  United  States  Government  or its  agencies  or
instrumentalities,  or  letters  of  credit of  certain  banks  selected  by the
Adviser.  The collateral  amount at all times while the loan is outstanding must
be maintained  in amounts equal to at least 100% of the current  market value of
the loaned securities.

The Fund will continue to receive  interest or dividends on the securities lent.
In addition, it will receive a portion of the income generated by the short-term
investment of cash received as collateral,  or, alternatively,  where securities
or a letter of credit are used as collateral, a lending fee paid directly to the
Fund by the borrower of the securities.  A Fund will have the right to terminate
a  securities  loan at any time.  The Fund will have the right to regain  record
ownership of loaned securities in order to exercise  beneficial rights,  such as
voting rights or subscription rights.

Loans  of  securities  will be  made  only  to  firms  that  the  Adviser  deems
creditworthy.  There are risks of delay in  recovery  and even loss of rights in
the collateral,  however,  if the borrower of securities  defaults,  becomes the
subject  of  bankruptcy  proceedings  or  otherwise  is  unable to  fulfill  its
obligations or fails financially.

Repurchase Agreements

The Funds have the authority to enter into repurchase agreements. A Fund may not
invest  more  than 10% of its  total  assets in  repurchase  agreements  or time
deposits that mature in more than seven days.  The Funds will not enter into any
repurchase agreements until the Investment Company's Board of Directors approves
a form of Repurchase Agreement and authorizes entities as counterparties.

Under a repurchase agreement,  a Fund acquires underlying debt instruments for a
relatively  short period (usually not more than one week and never more than one
year)  subject to an  obligation  of the seller to  repurchase  (and the Fund to
resell) the instrument at a fixed price and time, thereby  determining the yield
during  the  Fund's  holding  period.  This  results  in a fixed  rate of return
insulated from market  fluctuation  during such period.  Accrued interest on the
underlying  security  will not be  included  for  purposes  of  valuing a Fund's
assets.

Repurchase  agreements have the  characteristics  of loans by a Fund and will be
fully collateralized  (either with physical securities or evidence of book entry
transfer to the account of the custodian bank) at all times.  During the term of
the  repurchase  agreement,  the  Fund  retains  the  security  subject  to  the
repurchase agreement as collateral securing the seller's repurchase  obligation,
continually  monitors the market value of the security  subject to the agreement
and requires the Fund's  seller to deposit with the Fund  additional  collateral
equal to any amount by which the  market  value of the  security  subject to the
repurchase agreement falls below the resale amount provided under the repurchase
agreement.

The Funds will enter into  repurchase  agreements  only with member banks of the
Federal  Reserve  System and with dealers in U.S.  Government  securities  whose
creditworthiness has been reviewed and found satisfactory by the Adviser and the
Board of Directors of the Investment Company.

Securities  underlying  repurchase agreements will be limited to certificates of
deposit,  commercial  paper,  bankers'  acceptances,  or  obligations  issued or
guaranteed by the United States Government or its agencies or instrumentalities,
in which the Funds may otherwise invest.

A seller of a repurchase  agreement could default and not repurchase from a Fund
the security  that is the subject of the  agreement.  The Fund would look to the
collateral   underlying  the  seller's  repurchase   agreement,   including  the
securities subject to the repurchase agreement, for satisfaction of the seller's
obligation to the Fund. In such event, the Fund might incur disposition costs in
liquidating  the  collateral  and  might  suffer  a  loss  if the  value  of


                                       5
<PAGE>

the  collateral  declines.  There is a risk that if the issuer of the repurchase
agreement becomes involved in bankruptcy proceedings,  the Fund might be delayed
or prevented from liquidating the underlying  security or otherwise obtaining it
for its own purposes,  if the Fund did not have actual or book entry  possession
of the security.

Rule 144A Investments, Section 4(2) Commercial Paper and Illiquid Securities

Each Fund,  with respect to not more than 10% of its total assets,  may purchase
securities  that  are not  readily  marketable,  or are  "illiquid".  Repurchase
agreements  of more than seven days'  duration and  variable  and floating  rate
demand notes not  requiring  receipt of the  principal  note amount within seven
days' notice are considered  illiquid. A Fund may incur higher transaction costs
and require  more time to complete  transactions  for the  purchase  and sale of
illiquid  securities  than  for  readily  marketable  securities.  When  a  Fund
determines to sell an illiquid  security within a relatively  short time period,
it may have to accept a lower  sales  price than if the  security  were  readily
marketable. Refer to "Non-Fundamental Investment Policies", paragraph 10.

The Adviser  will make a factual  determination  as to whether  securities  with
contractual  or legal  restrictions  on resale  purchased  by a Fund are liquid,
based on the frequency of trades and quotes, the number of dealers and potential
purchasers, dealer undertakings to make a market, and the nature of the security
and the marketplace, pursuant to procedures adopted by the Board of Directors of
the Investment Company.

Securities  that are  eligible  for  purchase  and sale  under  Rule 144A of the
Securities Act of 1933 (the 1933 Act) shall be considered  liquid,  provided the
Adviser has not made a contrary determination  regarding liquidity in accordance
with the Board's procedures.  Rule 144A permits certain qualified  institutional
buyers to trade in  securities  even though the  securities  are not  registered
under the 1933 Act. In addition, commercial paper privately placed in accordance
with Section 4(2) of the 1933 Act also will be considered  liquid,  provided the
requirements set forth in the Board's procedures are satisfied.

Options and Futures Contracts

Each of the Funds may  purchase  and sell  options  and  futures  contracts,  as
described  below.  Refer to  "Non-Fundamental  Investment  Restrictions"  below,
paragraph  1,  for a  description  of the  current  restrictions  on the  Funds'
purchase of options and futures contracts.

Each  Fund  may  sell a call  option  contract  on a  security  it  holds in its
portfolio  (called a covered call), and it may buy a call option contract on the
security to close out a position created by the sale of a covered call.

    o   A call option is a short-term  contract  (generally having a duration of
        nine months or less) which gives the  purchaser  of the option the right
        to purchase the  underlying  security at a fixed  exercise  price at any
        time  prior to the  expiration  of the option  regardless  of the market
        price of the security  during the option period.  As  consideration  for
        writing a covered call option,  a Fund (the  seller)  receives  from the
        purchaser a premium, which the Fund retains whether or not the option is
        exercised.

    o   The seller of the call option has the  obligation,  upon the exercise of
        the option by the  purchaser,  to sell the  underlying  security  at the
        exercise  price at any time during the option  period.  The selling of a
        call  option  will  benefit  a Fund if,  over  the  option  period,  the
        underlying  security  declines in value or does not appreciate above the
        aggregate of the exercise price and the premium. However, the Fund risks
        an "opportunity loss" of profits if the underlying security  appreciates
        above the aggregate value of the exercise price and the premium.

Each Fund may buy a put option contract on a security it holds in its portfolio,
and it may sell a put option  contract  on the  security to close out a position
created by the purchase of the put option contract.

    o   A put option is a similar  short-term  contract that gives the purchaser
        of the  option  the  right to sell the  underlying  security  at a fixed
        exercise  price  at any  time  prior  to the  expiration  of the  option
        regardless of the market price of the security during the option period.
        As  consideration  for the put option,  a Fund (the  purchaser) pays the
        seller a premium,  which the seller retains whether or not the option is
        exercised.  The seller of the put option  has the  obligation,  upon the
        exercise  of the option by the  purchaser,  to purchase  the  underlying
        security at the exercise price at any time during the option period. The
        buying of a covered put contract  limits the  downside  exposure for the
        investment in the underlying security to the combination of the exercise
        price less the premium paid.


                                       6
<PAGE>

    o   The risk of purchasing a put is that the market price of the  underlying
        stock  prevailing  on the  expiration  date  may be above  the  option's
        exercise price.  In that case the option would expire  worthless and the
        entire premium would be lost.

Each Fund may  purchase  and sell futures  contracts,  and  purchase  options on
futures contracts, on fixed-income securities or on an index of securities, such
as the  Standard & Poor's 100 Index,  the Standard & Poor's 500 Index or the New
York Stock Exchange Composite Index.

    o   A futures  contract on fixed  income  securities  requires the seller to
        deliver, and the purchaser to accept delivery of, a stated quantity of a
        given type of fixed  income  security  for a fixed  price at a specified
        time in the  future.  A futures  contract  or  option  on a stock  index
        provides for the making and acceptance of a cash settlement equal to the
        change in value of a  hypothetical  portfolio of stocks between the time
        the  contract  is entered  into and the time it is  liquidated,  times a
        fixed multiplier.  Futures contracts may be traded  domestically only on
        exchanges  which  have been  designated  as  "contract  markets"  by the
        Commodity  Futures  Trading  Commission,  such as the  Chicago  Board of
        Trade.

    o   An option on a futures  contract  provides the purchaser with the right,
        but  not  the  obligation,  to  enter  into  a  "long"  position  in the
        underlying  futures  contract (in the case of a call option on a futures
        contract),  or a "short" position in the underlying futures contract (in
        the case of a put option on a futures contract),  at a fixed price up to
        a stated expiration date. Upon exercise of the option by the holder, the
        contract  market  clearing  house  establishes  a  corresponding   short
        position for the writer of the option,  in the case of a call option, or
        a corresponding  long position in the case of a put option. In the event
        that an option is exercised, the parties are subject to all of the risks
        associated  with the  trading of futures  contracts,  such as payment of
        margin deposits.

    o   A Fund does not pay or receive a payment  upon its purchase or sale of a
        futures contract. Initially, a Fund will be required to deposit with the
        Fund's custodian in the broker's name an amount of cash or U.S. Treasury
        bills equal to approximately  5% of the contract amount.  This amount is
        known as "initial margin."

    o   While a  futures  contract  is  outstanding,  there  will be  subsequent
        payments,  called "maintenance  margin",  to and from the broker.  These
        payments  will be made on a daily or intraday  basis as the price of the
        underlying  instrument or stock index  fluctuates  making,  the long and
        short  positions in the futures  contract  more or less  valuable.  This
        process is known as "mark to market." At any time prior to expiration of
        the futures  contract,  a Fund may elect to close the position by taking
        an  opposite  position,  which  will  operate  to  terminate  the Fund's
        position in the futures contract and may require additional  transaction
        costs. A final determination of margin is then made,  additional cash is
        required to be paid by or released to the Fund,  and the Fund realizes a
        loss or a gain.

A Fund may use  futures  contracts  to  protect  against  general  increases  or
decreases in the levels of securities prices, in the manner described below.

    o   When a Fund  anticipates  a  general  decrease  in the  market  value of
        portfolio securities, it may sell futures contracts. If the market value
        falls, the decline in the Fund's net asset value may be offset, in whole
        or in part, by corresponding gains on the futures position.

        *  A Fund may sell  futures  contracts  on  fixed-income  securities  in
           anticipation of a rise in interest rates,  that would cause a decline
           in the value of fixed-income securities held in the Fund's portfolio.

        *  A Fund may sell stock index futures  contracts in  anticipation  of a
           general  market  wide  decline  that  would  reduce  the value of its
           portfolio of stocks.

    o   When a Fund projects an increase in the cost of fixed-income  securities
        or stocks to be acquired in the future,  the Fund may  purchase  futures
        contracts on  fixed-income  securities or stock indexes.  If the hedging
        transaction is successful, the increased cost of securities subsequently
        acquired  may be offset,  in whole or in part,  by gains on the  futures
        position.

    o   Instead of purchasing or selling futures contracts,  a Fund may purchase
        call or put  options on futures  contracts  in order to protect  against
        declines in the value of portfolio  securities  or against  increases in
        the cost of securities to be acquired.


                                       7
<PAGE>

        *  Purchases  of options on futures  contracts  may present less risk in
           hedging a  portfolio  than the  purchase  and sale of the  underlying
           futures contracts,  since the potential loss is limited to the amount
           of the premium paid for the option, plus related transaction costs.

        *  As in the case of purchases  and sales of futures  contracts,  a Fund
           may be able to offset declines in the value of portfolio  securities,
           or  increases  in the  cost of  securities  acquired,  through  gains
           realized on its purchases of options on futures.

    o   The Funds also may purchase put options on  securities  or stock indexes
        for the same types of securities for hedging purposes. The purchase of a
        put  option on a  security  or stock  index  permits  a Fund to  protect
        against  declines in the value of the underlying  security or securities
        in a manner similar to the sale of futures contracts.

    o   In addition, the Funds may write call options on portfolio securities or
        on stock indexes for the purpose of increasing  their returns  and/or to
        protect the value of their portfolios.

        *  When a Fund writes an option which expires  unexercised  or is closed
           out by the Fund at a profit,  it will retain the premium paid for the
           option, less related transaction costs, which will increase its gross
           income  and will  offset  in part the  reduced  value of a  portfolio
           security in connection with which the option may have been written.

        *  If the price of the security underlying the option moves adversely to
           the Fund's position, the option may be exercised and the Fund will be
           required to sell the security at a disadvantageous  price,  resulting
           in losses  which may be only  partially  offset by the  amount of the
           premium.

        *  A call option on a security written by a Fund will be covered through
           ownership of the security  underlying the option or through ownership
           of an absolute  and  immediate  right to acquire such  security  upon
           conversion or exchange of other securities held in its portfolio.


Risks in futures and options transactions include the following:

    o   There may be a lack of  liquidity,  which  could  make it  difficult  or
        impossible for a Fund to close out existing  positions and realize gains
        or limit losses.

        The liquidity of a secondary  market in futures  contracts or options on
        futures contracts may be adversely  affected by "daily price fluctuation
        limits,"  established  by the  exchanges on which such  instruments  are
        traded, which limit the amount of fluctuation in the price of a contract
        during a single trading day. Once the limit in a particular contract has
        been reached,  no further trading in such contract may occur beyond such
        limit,  thus  preventing  the  liquidation  of positions,  and requiring
        traders to make additional  variation margin payments.  Market liquidity
        in options,  futures  contracts or options on futures contracts may also
        be  adversely  affected  by  trading  halts,  suspensions,  exchange  or
        clearing house equipment failures,  government intervention,  insolvency
        of a brokerage  firm or clearing  house or other  disruptions  of normal
        trading activity.

    o   The securities held in a Fund's portfolios may not exactly duplicate the
        security or  securities  underlying  the options,  futures  contracts or
        options on  futures  contracts  traded by the Fund,  and as a result the
        price of the portfolio securities being hedged will not move in the same
        amount  or  direction  as  the  underlying  index,  securities  or  debt
        obligation.

    o   A Fund  purchasing  an option may lose the entire  amount of the premium
        plus related transaction costs.

    o   For options on futures contracts, changes in the value of the underlying
        futures contract may not be fully reflected in the value of the option.

    o   With respect to options and options on futures contracts,  the Funds are
        subject to the risk of market movements between the time that the option
        is exercised and the time of performance thereunder.

    o   In writing a covered call option on a security or a stock index,  a Fund
        may incur the risk that changes in the value of the instruments  used to
        cover the  position  will not  correlate  precisely  with changes in the
        value of the option or underlying the index or instrument.

    o   The  opening  of a futures  position  and the  writing  of an option are
        transactions that involve substantial leverage. As a result,  relatively
        small  movements in the price of the contract can result in  substantial
        unrealized gains or losses.


                                       8
<PAGE>

Additional Information about Specific Types of Securities
--------------------------------------------------------------------------------

Non-Investment Grade Securities

The Bond Fund may purchase  non-investment  grade debt securities.  In addition,
the Bond Fund and the other  Funds  that  purchase  debt  securities  may hold a
security that becomes  non-investment  grade as a result of  impairments  of the
issuer's credit.

Fixed-income  securities  that are rated in the lower rating  categories  of the
nationally recognized rating services (Ba or lower by Moody's and BB or lower by
Standard & Poor's),  or unrated securities of comparable  quality,  are commonly
known as  non-investment  grade  securities  or "junk  bonds".  Junk  bonds  are
regarded as being  predominantly  speculative as to the issuer's ability to make
payments  of  principal  and  interest.   Investment  in  non-investment   grade
securities  involves  substantial  risk.  Junk  bonds  may  be  issued  by  less
creditworthy  companies  or by  larger,  highly  leveraged  companies,  and  are
frequently  issued in corporate  restructurings,  such as mergers and  leveraged
buy-outs.  Such securities are particularly vulnerable to adverse changes in the
issuer's industry and in general economic conditions.  Junk bonds frequently are
junior  obligations  of their  issuers,  so that in the  event  of the  issuer's
bankruptcy,  claims of the  holders of junk bonds will be  satisfied  only after
satisfaction of the claims of senior security holders.

Non-investment   grade  bonds  tend  to  be  more  volatile  than   higher-rated
fixed-income  securities,  so that  adverse  economic  events may have a greater
impact on the prices of junk bonds than on higher-rated fixed-income securities.
Junk bonds generally are purchased and sold through dealers who make a market in
such securities for their own accounts.  However, there are fewer dealers in the
non-investment  grade bond  market,  and the market may be less  liquid than the
market for  higher-rated  fixed-income  securities,  even under normal  economic
conditions.  Also, there may be significant disparities in the prices quoted for
junk  bonds  by  various  dealers.   Adverse  economic  conditions  or  investor
perceptions  (whether  or not based on  economic  fundamentals)  may  impair the
liquidity of this  market,  and may cause the prices that a Fund may receive for
any  non-investment  grade  bonds  to be  reduced,  or  might  cause  a Fund  to
experience difficulty in liquidating a portion of its portfolio.

The Investment Company currently  anticipates than no Fund will invest more than
5% of its total assets in non-investment grade debt securities,  although a Fund
may hold a larger percentage if investment grade securities have been downgraded
after purchase by the Fund.

U.S. Government and U.S. Government Agency Obligations

All of the  Funds may  invest  in U.S.  Government  and U.S.  Government  agency
obligations.  Some of these  securities  also  may be  considered  money  market
instruments.  Some  also  may  be  mortgage-backed  securities  or  zero  coupon
securities.

U.S.  Government  Obligations:  These  securities are issued or guaranteed as to
principal and interest by the United States  Government.  They include a variety
of Treasury  securities,  which differ only in their interest rates,  maturities
and times of  issuance.  Treasury  bills  have a  maturity  of one year or less.
Treasury notes at the time of issuance have maturities of one to seven years and
Treasury bonds generally have a maturity of greater than five years.

U.S.  Government  Agency  Obligations:  Agencies of the United States Government
that issue or guarantee obligations include, among others, Export-Import Bank of
the United States, Farmers Home Administration,  Federal Housing Administration,
Government National Mortgage  Association,  Student Loan Marketing  Association,
Maritime Administration,  Small Business Administration and the Tennessee Valley
Authority.  Instrumentalities  of the  United  States  Government  that issue or
guarantee obligations include,  among others, Federal Farm Credit Banks, Federal
National  Mortgage  Association,  Federal  Home Loan  Banks,  Federal  Home Loan
Mortgage Corporation,  Federal Intermediate Credit Banks, Federal Land Banks and
Banks for Cooperatives.

Some of the securities issued by U.S. Government agencies and  instrumentalities
are  supported  by the full  faith and credit of the U.S.  Treasury;  others are
supported by the right of the issuer to borrow from the  Treasury,  while others
are  supported  only  by the  credit  of the  instrumentality  that  issued  the
obligation.

Money Market Instruments

All of the Funds may  purchase  money  market  instruments,  which  include  the
following.

Certificates  of  Deposit.  Certificates  of deposit are  generally  short term,
interest-bearing  negotiable  certificates  issued by banks or savings  and loan
associations against funds deposited in the issuing institution.


                                       9
<PAGE>

Time  Deposits.  Time  deposits  are  deposits  in a  bank  or  other  financial
institution for a specified  period of time at fixed interest rate, for which no
negotiable certificate is received.

Bankers' Acceptance. A bankers' acceptance is a draft drawn on a commercial bank
by a borrower usually in connection with an international commercial transaction
(to finance the import,  export,  transfer or storage of goods). The borrower is
liable for payment as well as the bank, which unconditionally  guarantees to pay
the  draft at its face  amount  on the  maturity  date.  Most  acceptances  have
maturities  of six months or less and are traded in secondary  markets  prior to
maturity.

Commercial Paper.  Commercial paper refers to short-term,  unsecured  promissory
notes issued by  corporations  to finance  short-term  credit needs.  Commercial
paper is  usually  sold on a discount  basis and has a  maturity  at the time of
issuance not exceeding nine months.

Variable  Amount  Floating  Rate  Notes.   Variable   floating  rate  notes  are
short-term,  unsecured  promissory  notes  issued  by  corporations  to  finance
short-term credit needs. These are interest-bearing  notes on which the interest
rate generally fluctuates on a weekly basis.

Corporate Debt Securities.  Corporate debt securities with a remaining  maturity
of less than one year tend to become  extremely  liquid  and are traded as money
market securities.

Treasury Bills. See "U.S.  Government and U.S.  Government  Agency  Obligations"
above.

Because the Money Market Fund and the other Funds  generally  will purchase only
money  market  instruments  that are rated high  quality and have short terms to
maturity,  these money market  instruments  are considered to have low levels of
market risk and credit risk.

Zero Coupon Securities And Discount Notes; Redeemable Securities

The Bond Fund, and the All America Fund to the extent it invests in fixed income
securities,  may invest in discount notes and zero coupon  securities.  Discount
notes  mature  in one  year or less  from  the  date of  issuance.  Zero  coupon
securities may be issued by corporations or by certain U.S. Government agencies.

Discount notes and zero coupon securities do not pay interest. Instead, they are
issued at prices that are  discounted  from the  principal  (par)  amount due at
maturity. The difference between the issue price and the principal amount due at
maturity (or the amount due at the expected redemption date in some cases if the
securities are callable) is called "original issue discount". A Fund must accrue
original  issue discount as income,  even if the Fund does not actually  receive
any payment under the security  during the accrual  period.  The purchase  price
paid for zero coupon securities at the time of issuance,  or upon any subsequent
resale, reflects a yield-to-maturity required by the purchaser from the purchase
date to the maturity date (or expected redemption date).


Zero coupon securities and discount notes may fluctuate more in market value and
be more  difficult for a Fund to resell during  periods of interest rate changes
in the economy than  comparable  securities that pay interest in cash at regular
intervals.  The market values of outstanding debt securities  generally  decline
when  interest  rates are rising,  and during such  periods a Fund may lose more
investment  capital if it sells zero coupon  securities  prior to their maturity
date or expected  redemption date than if it sells  comparable  interest-bearing
securities.  In general,  the longer the remaining  term to maturity or expected
redemption  of a security,  the  greater the impact on market  value from rising
interest rates.


Foreign Securities and American Depositary Receipts (ADRs)

In addition to  investing in domestic  securities,  each of the Funds other than
the Equity Index Fund,  Mid-Cap Equity Index Fund and the Money Market Fund, may
invest in securities of foreign issuers, including securities traded outside the
United States. Foreign issues guaranteed by domestic corporations are considered
to be domestic securities.

Each of the Funds, other than the Money Market Fund and Bond Fund, may invest in
ADRs, which are  dollar-denominated  receipts issued generally by domestic banks
and representing the deposit with the bank of a security of a foreign issuer.
ADRs are publicly traded on exchanges or over-the-counter in the United States.

The Investment Company has a non-fundamental  investment restriction that limits
foreign securities,  including foreign exchange transactions, and ADRs to 25% of
a Fund's total assets. (See "Non-Fundamental Investment Policies", paragraph 2.)
The Investment Company currently  anticipates that no Fund will invest more than
10% of its total assets in foreign securities or foreign exchange transactions.


                                       10
<PAGE>

The Investment Company will consider special factors before investing in foreign
securities and ADRs. These include:

    o   changes in currency rates or currency exchange control regulations,

    o   the possibility of expropriation,

    o   the  unavailability  of  financial  information  or  the  difficulty  of
        interpreting  financial  information  prepared under foreign  accounting
        standards,

    o   less liquidity and more  volatility in foreign  securities  markets (not
        applicable to ADRs),

    o   the impact of political, social or diplomatic developments, and

    o   the difficulty of assessing economic trends in foreign countries.

The Funds could  encounter  greater  difficulties  in bringing  legal  processes
abroad that would be encounter in the United  States.  In addition,  transaction
costs in foreign securities may be higher.

Convertible Securities

The Bond Fund,  as well as the All America and  Aggressive  Equity  Funds to the
extent  they  invest  in  debt  securities,   may  invest  in  convertible  debt
securities.  Convertible  securities  can be converted by the holder into common
stock of the issuer,  at the price and on the terms set forth by the issuer when
the convertible  securities are initially sold.  Convertible securities normally
provide  a higher  yield  than the  underlying  stock but a lower  yield  than a
fixed-income  security  without  the  convertibility  feature.  The price of the
convertible security normally will vary to some degree with changes in the price
of the underlying stock, although the higher yield tends to make the convertible
security  less  volatile  than the  underlying  common  stock.  The price of the
convertible  security  also will vary to some  degree  inversely  with  interest
rates.

Equipment Trust Certificates

The Bond Fund may invest in equipment trust certificates.  The proceeds of those
certificates are used to purchase equipment, such as railroad cars, airplanes or
other  equipment,  which in turn serve as  collateral  for the related  issue of
certificates.

The equipment  subject to a trust generally is leased by a railroad,  airline or
other  business,  and rental  payments  provide the projected  cash flow for the
repayment  of the  equipment  trust  certificates.  Holders of  equipment  trust
certificates  must look to the  collateral  securing the  certificates,  and any
guarantee  provided by the lessee or any parent  corporation  for the payment of
lease  amounts,  in the case of default in the payment of principal and interest
on the certificates.

The Investment Company currently has a non-fundamental investment policy that no
Fund  will  invest  more  than  5%  of  its  total  assets  in  equipment  trust
certificates.

Asset-Backed Securities

The Bond Fund may invest in  securities  backed by consumer or credit card loans
or other receivables or may purchase interests in pools of such assets.

Changes  in  interest  rates  may  significantly   affect  the  value  of  these
securities,  and  prepayment  rates  will  impact  the  yield  and  price of the
securities.  A decline in interest  rates may result in increases in prepayment,
and a Fund will have to  invest  prepayment  proceeds  at the  prevailing  lower
interest rates.  Asset-backed securities generally are not expected to prepay to
the same extent as mortgage-backed securities in such circumstances. An increase
in  interest  rates may result in  prepayment  at a rate slower than was assumed
when  the  security  was  purchased.   The  creditworthiness  of  an  issuer  of
asset-backed securities also may impact the value of they securities.

The Investment Company currently has a non-fundamental investment policy that no
Fund will:

    o   invest more than 10% of its total assets in asset-backed securities,

    o   invest in interest-only strips or principal-only  strips of asset-backed
        securities, or

    o   purchase the most speculative series or class of asset-backed securities
        issues.


                                       11
<PAGE>

Mortgage-Backed Securities

The Bond Fund,  as well as the All America and  Aggressive  Equity  Funds to the
extent they invest in debt securities, may invest in mortgage-backed securities.
You  should  refer  to  the  discussion  of  Mortgage-Backed  Securities  in the
Prospectus  under  "Details  about How Our Funds  Invest  and  Related  Risks --
Specific Investments or Strategies and Related Risks".

The Investment Company currently has a non-fundamental investment policy that no
Fund will:

    o   if the Fund invests  primarily in fixed income  securities,  invest more
        than 10% of its total assets in mortgage-backed  securities that are not
        also  considered  to  be  U.S.  Government  or  U.S.  Government  agency
        securities,

    o   if  the  Fund  invests  primarily  in  equity   securities,   invest  in
        mortgage-backed  securities  unless they are also  considered to be U.S.
        Government Securities,

    o   invest   in   interest-only   strips   or   principal-only   strips   of
        mortgage-backed securities, or

    o   purchase the most speculative class or series of collateralized mortgage
        obligation issues or other mortgage-backed securities issues.

Warrants

The All America Fund and Bond Fund may acquire warrants.  A warrant is an option
to purchase common stock of an issuer and is issued in conjunction  with another
security, such as a debt obligation.  A warrant specifies the price at which the
holder may purchase shares of common stock and usually expires after a period of
time.  A  warrantholder  generally  may pay  cash  for the  common  stock  to be
purchased or may  surrender  principal  amount of the related debt  security the
warrantholder owns equal to the purchase price for the stock.

The common  stock  underlying a warrant may not increase in value after the date
the warrant was issued, or may not increase up to the warrant exercise price. In
this case,  the  warrant  generally  would have  little  value and could  expire
unexercised.

The Investment Company currently has a non-fundamental investment policy that no
Fund will invest more than 5% of its assets in warrants.

Preferred Stock

The All America Fund and Bond Fund may purchase  preferred  stock. A corporation
may issue a form of equity security called preferred  stock.  Compared to common
stock,  preferred  stock has  advantages  in the receipt of dividends and in the
receipt of the corporation's  assets upon liquidation.  Preferred  stockholders,
however,  usually do not have voting  rights at  meetings  of the  corporation's
shareholders.

An issuer of preferred  stock must pay a dividend to holders of preferred  stock
before it distributes a dividend to holders of common stock.  When a corporation
issues  preferred  stock, it sets a dividend rate, or a formula to determine the
rate. If a corporation  does not have  sufficient  earnings to pay the specified
dividend to preferred  stockholders,  the unpaid dividend may accrue  (cumulate)
and become payable when the corporation's  earnings  increase.  Bondholders,  in
contrast,  are entitled to receive interest and principal due, regardless of the
issuer's earnings.

Some  issues  of  preferred  stock  give the  holder  the right to  convert  the
preferred stock into shares of common stock, when certain  conditions are met. A
holder of preferred stock that is not convertible, or of preferred stock that is
convertible but has not met the conditions for conversion, does not share in the
earnings  of the issuer  other than  through  the  receipt of  dividends  on the
preferred  stock.  The market value of  convertible  preferred  stock  generally
fluctuates more than the market value of nonconvertible preferred stock, because
the  value  of  the  underlying  common  stock  will  affect  the  price  of the
convertible stock.

Preferred stock has the risk that a corporation may not have earnings from which
to pay the  dividends  as they  become  due.  Even if a  corporation  is  paying
dividends, if the dividend rate is fixed (and not variable), changes in interest
rates  generally will affect the market value of the preferred stock in the same
manner as for debt obligations.

The Investment Company presently has a non-fundamental investment policy that no
Fund will invest more than 10% of its assets in preferred stock.


                                       12
<PAGE>

                      FUNDAMENTAL INVESTMENT RESTRICTIONS

The following investment  restrictions are fundamental  policies.  The Funds may
not change these policies unless a majority of the outstanding  voting shares of
each affected Fund approves the change. No Fund will:

1.   underwrite the securities  issued by other companies,  except to the extent
     that the Fund's purchase and sale of portfolio  securities may be deemed to
     be an underwriting;

2.   purchase physical commodities or contracts involving physical commodities;


3.   based on its  investments  in individual  issuers,  be  non-diversified  as
     defined  under the 1940 Act and in addition  the Money Market Fund will not
     invest  in any  securities  that  would  cause  it to fail to  comply  with
     applicable  diversification  requirements  for money market funds under the
     1940 Act and rules thereunder, as amended from time to time;

4.   based  on  its   investment   in  an   issuer's   voting   securities,   be
     non-diversified  as defined  under the 1940 Act,  as  amended  from time to
     time.


5.   issue senior  securities,  except as  permitted  under the 1940 Act and the
     rules thereunder as amended from time to time;


6.   invest more than 25% of its total  assets in the  securities  of issuers in
     one  industry,  other  than  securities  issued or  guaranteed  by the U.S.
     Government  or its  agencies  or  instrumentalities,  except that the Money
     Market  Fund may invest  more than 25% of its total  assets in  instruments
     issued by U.S. banks.


7.   purchase  real  estate  or  mortgages  directly,  but a Fund may  invest in
     mortgage-backed  securities  and may purchase the  securities  of companies
     whose  businesses  deal in real estate or mortgages,  including real estate
     investment trusts;


8.   borrow  money,  except to the  extent  permitted  by the 1940 Act and rules
     thereunder, as amended from time to time; or

9.   lend assets to other  persons,  except to the extent  permitted by the 1940
     Act, the rules  thereunder and applicable SEC  guidelines,  as amended from
     time to time, or pursuant to any exemptive relief granted by the SEC.

Current 1940 Act provisions applicable to fundamental  investment restriction #3
above: The 1940 Act and rules thereunder currently restrict a Fund, with respect
to 75% of the  value of its total  assets,  from  investing  more than 5% of its
total  assets in the  securities  of any one issuer,  other than (i)  securities
issued  or  guaranteed  by the  United  States  Government  or its  agencies  or
instrumentalities ("U.S. Government  Securities"),  and (ii) securities of other
registered investment companies;

Current 1940 Act provisions applicable to fundamental  investment restriction #4
above: The 1940 Act and rules thereunder currently restrict a Fund, with respect
to 75% of the value of its total assets,  from  purchasing  more than 10% of the
outstanding  voting securities of any one issuer other than (i) U.S.  Government
Securities,  and (ii) securities of other registered investment  companies,  and
imposes additional restrictions on the Money Market Fund.

Current 1940 Act provisions applicable to fundamental  investment restriction #8
above: The 1940 Act and rules  thereunder  currently limit a Fund's borrowing to
331/3% of total assets (including the amount borrowed) minus liabilities  (other
than  borrowings) and require the reduction of any excess borrowing within three
business days.

Current 1940 Act provisions applicable to fundamental  investment restriction #9
above:  The 1940 Act and rules  thereunder  currently  limit a Fund's lending to
331/3% of its total assets,  with a Fund's entry into  repurchase  agreements or
the purchase of debt  securities  not being  considered the making of a loan for
this purpose.



                                       13
<PAGE>

                      NON-FUNDAMENTAL INVESTMENT POLICIES

The following investment  restrictions are not fundamental policies. They may be
changed without shareholder  approval by a vote of the Board of Directors of the
Investment Company,  subject to any limits imposed by the 1940 Act or applicable
regulatory   authorities  and  subject  to  each  Fund's  investment  objectives
permitted investments. No Fund will:

1.   purchase  or sell  options  or  futures  contracts  or  options  on futures
     contracts  unless the options or contracts  relate to U.S.  issuers or U.S.
     stock indexes and are not for  speculation,  and in addition (i) a Fund may
     write only  covered  call  options and may buy put options only if it holds
     the  related  securities,  (ii) a Fund may invest in futures  contracts  to
     hedge not more than 20% of its total  assets,  and (iii)  premiums  paid on
     outstanding options contracts may not exceed 5% of the Fund's total assets;

2.   invest in foreign  exchange nor invest more that 25% of its total assets in
     securities of foreign issuers and American Depositary Receipts (ADRs);

3.   invest for the purpose of exercising  control over  management of an issuer
     (either separately or together with any other Funds);

4.   make  short  sales,  except  when the Fund  owns or has the right to obtain
     securities of  equivalent  kind and amount that will be held for as long as
     the Fund is in a short position;

5.   if its  investment  policy is to  invest  primarily  in equity  securities,
     purchase  mortgage-backed  securities unless they are also U.S.  Government
     Securities,  or if its  investment  policy is to invest  primarily in fixed
     income   securities,   invest  more  than  10%  of  its  total   assets  in
     mortgage-backed securities that are not also U.S. Government Securities;

6.   invest in the  securities of any  registered  investment  company except as
     permitted  under  the  Investment   Company  Act  of  1940  and  the  rules
     thereunder,  as  amended  from  time to time,  or by any  exemptive  relief
     granted by the SEC;

7.   purchase  securities  on margin,  except that credits for the  clearance of
     portfolio  transactions  and the  making of  margin  payments  for  futures
     contracts  and  options  on  futures  contracts  shall not  constitute  the
     purchasing of securities on margin;

8.   borrow money except for temporary or emergency purposes (not for investment
     or leveraging) or under any reverse repurchase  agreement,  provided that a
     Fund's  aggregate  borrowings may not exceed 10% of the value of the Fund's
     total  assets  and  it  may  not  purchase  additional  securities  if  its
     borrowings exceed that limit;

9.   lend more than 10% of its assets;

10.  invest more than 10% of its total assets in securities  that are considered
     to  be  illiquid   because  they  are  subject  to  legal  or   contractual
     restrictions on resale or are otherwise not readily  marketable,  including
     repurchase  agreements  and time  deposits  that do not mature within seven
     days but excluding  Rule 144A  securities and other  restricted  securities
     that are  determined  to be liquid  pursuant to  procedures  adopted by the
     Board of Directors;

11. invest more than 5% of its total assets in equipment trust certificates;

12.  invest  more than 10% of its total  assets in  asset-backed  securities  or
     purchase the most  speculative  series or class of asset-backed  securities
     issues;

13.  purchase the most speculative  series or class of  collateralized  mortgage
     obligation issues or other mortgage-backed securities issues;

14.  invest in  interest-only  strips or principal  only strips of  asset-backed
     securities, mortgage-backed securities or other debt securities;

15.  invest more than 5% of its assets in warrants; or

16. invest more than 10% of its assets in preferred stock.


                                       14
<PAGE>

                      MANAGEMENT OF THE INVESTMENT COMPANY

The Directors of the Investment  Company  consist of five  individuals,  four of
whom are not  "interested  persons" of the Investment  Company as defined in the
Investment  Company Act of 1940.  The  Directors of the  Investment  Company are
responsible  for the overall  supervision  of the  operations of the  Investment
Company and perform the various  duties  imposed on the  directors of investment
companies by the Investment  Company Act of 1940. The Board of Directors  elects
officers of the Investment Company annually.

The  Directors  and  Officers  of the  Investment  Company  and their  principal
employment are as follows:

<TABLE>
<CAPTION>
                                       Position Held With           Principal Occupations
Name, Address And Age                  Investment Company           During Past Five Years
---------------------                  ------------------           ----------------------
<S>                                    <C>                          <C>
Kevin M. Kearney, age 47               Director                     Partner, Wingate, Kearney & Cullen
32 Court Street                                                     (law firm).
Brooklyn, NY 11201

Dolores J. Morrissey*, age 72          Chairman of the              President and Chief Executive Officer of
320 Park Avenue                        Board, President and         Mutual of America Securities Corporation
New York, NY 10022                     Director                     ("Distributor") since August 1996;
                                                                    Executive  Vice President and Assistant to the
                                                                    President  of the  Adviser  from March 1996 to
                                                                    December 1996;  prior  thereto,  President and
                                                                    Chief Executive Officer of the Adviser.


John T. Sharkey, age 63                Director                     Chairman and Chief Executive Officer,
320 Park Avenue                                                     Kane, Saunders & Smart; prior thereto,
New York, NY 10022                                                  Vice President -- Corporate National
                                                                    Accounts, MCI Communications.


John R. Silber, age 73                 Director                     Chancellor, Boston University.
147 Bay State Road
Boston, MA 02215

Stanley Shmishkiss, age 81             Director                     Shmishkiss Associates; Chairman Emeritus
P.O. Box 909                                                        of the Board of Trustees of the American
Lynn, MA 01904                                                      Cancer Society Foundation.


Patrick J. Waide, Jr., age 62          Director                     Retired; Past President, The Drucker
320 Park Avenue                                                     Foundation; Chief Operating Officer, Sullivan
New York, New York                                                  & Company, New York, New York from
                                                                    September 1996 to December 1998; prior
                                                                    thereto, Executive Vice President and Chief
                                                                    Financial Officer of the Bessemer Group,
                                                                    Inc., and Senior Vice President and Chief
                                                                    Financial Officer of Bessemer Securities.


Manfred Altstadt, age 51               Senior Executive Vice        Senior Executive Vice President and Chief
320 Park Avenue                        President and                Financial Officer, Mutual of America Life New
York, NY 10022                         Treasurer                    and American Life.


Patrick A. Burns, age 53               Senior Executive Vice        Senior Executive Vice President and
320 Park Avenue                        President, General Counsel   General Counsel of the Adviser, Mutual of
New York, NY 10022                                                  America Life and American Life.


John Greed, age 40                     Executive Vice President     Executive Vice President and Treasurer,
320 Park Avenue                        and Chief Financial Officer  Mutual of America Life and American Life
New York, NY 10022                                                  since May 1997; Senior Vice President and
                                                                    Deputy Treasurer from July 1996 to May 1997;
                                                                    prior thereto, Partner, Arthur Andersen, LLP.

Stanley M. Lenkowicz, age 58           Senior Vice President,       Senior Vice President and Deputy General
320 Park Avenue                        Deputy General               Counsel, Mutual of America.
New York, NY 10022                     Counsel and Secretary
</TABLE>

-------------
* Ms.  Morrissey is an "interested  person" within the meaning of the Investment
Company Act.


                                       15
<PAGE>

The officers and directors of the Investment Company own none of its outstanding
shares (as  individuals  they are not  eligible to purchase  Fund  shares).  The
Investment  Company has no Audit  Committee,  and the entire  Board of Directors
fulfills the obligations that an Audit Committee would have.


Set forth below is a table showing  compensation  paid to the  directors  during
1999. The cost of compensating directors is divided equally among the Funds.



<TABLE>
<CAPTION>
                                          Aggregate          Pension or                         Total Compensation from
                                      Compensation from  Retirement Benefits     Estimated      Investment Company and
                                         Investment      Accrued as Part of       Benefits         Other Investment
Name of Director                           Company          Fund Expenses     Upon Retirement   Companies in Complex(3)
----------------                      -----------------  ------------------   ---------------   -----------------------
<S>                                       <C>                   <C>                 <C>               <C>
Kevin M. Kearney ....................     $14,198(2)            None                None              $14,198(2)
Dolores J. Morrissey ................        None(1)            None                None                 None(1)
John T. Sharkey .....................     $14,824(2)            None                None              $14,824(2)
Stanley Shmishkiss ..................     $16,619(2)            None                None              $16,619(2)
John R. Silber ......................     $16,619(2)            None                None              $16,619(2)
Patrick J. Waide, Jr. ...............     $14,824(2)            None                None              $14,824(2)
</TABLE>

-------------
(1)  As an employee of an affiliate of the Adviser and an "interested person" of
     the Investment Company,  Ms. Morrissey serves as director of the Investment
     Company   and  of  Mutual  of  America   Investment   Corporation   without
     compensation.

(2)  Directors  who are  not  "interested  persons"  of the  Investment  Company
     received from the  Investment  Company an annual  retainer of $10,000 and a
     fee of $1,000 for each Board or Committee meeting attended in 1999 and will
     receive an annual  retainer  of $16,000 and fee of $1,500 for each Board or
     committee  meeting they attend in 2000. In addition,  they receive business
     travel and accident insurance and life insurance coverage of $75,000.

(3)  Directors who are not  interested  persons do not serve on the Board of any
     other investment company in the same complex as the Investment Company.

At June 30, 2000,  Mutual of America Life Insurance  Company  (Mutual of America
Life) owned 57% of the All America Fund's shares, 86% of the Bond Fund's shares,
4% of the Money Market Fund's shares and 75% of the Equity Index Fund's  shares.
Mutual of  America  Life has the  right to vote its  shares  at any  meeting  of
shareholders.  Based on its ownership of shares on the date of this Statement of
Additional  Information,  Mutual of America  Life will  control  the  outcome of
voting by shareholders of the Equity Index Fund, All America Fund, Bond Fund and
all of the Funds  voting  together.  The address for Mutual of America  Life and
American Life, both of which are New York corporations,  is 320 Park Avenue, New
York, NY 10022.

                        INVESTMENT ADVISORY ARRANGEMENTS

Investment  Adviser.  The Investment  Company's  investment adviser is Mutual of
America Capital Management  Corporation (the Adviser or Capital Management),  an
indirect  wholly-owned  subsidiary  of Mutual of  America  Life.  The  Adviser's
address  is 320  Park  Avenue,  New  York,  New York  10022.  The  Adviser  is a
registered  investment  adviser under the  Investment  Advisers Act of 1940. The
Adviser  provides  investment  management  services to the  Investment  Company,
Mutual of America  Investment  Corporation and the General Accounts of Mutual of
America Life and American Life.

The Adviser provides  advisory  services for the Investment  Company's Funds, in
accordance with the Funds' investment  policies,  objectives and restrictions as
set forth in the Prospectus and this  Statement of Additional  Information.  The
Adviser has delegated some of its advisory responsibilities for a portion of the
All America Fund to the Subadvisers  named below.  The Adviser's  activities are
subject at all times to the supervision and approval of the Investment Company's
Board of Directors.

Under  the  Investment  Advisory  Agreement,   the  Adviser  agrees  to  provide
investment  management  services  to  the  Investment  Company.  These  services
include:

    o   performing   investment  research  and  evaluating  pertinent  economic,
        statistical and financial data;

    o   consultation  with  the  Investment  Company's  Board of  Directors  and
        furnishing   to   the   Investment    Company's   Board   of   Directors
        recommendations with respect to the overall investment plan;

    o   implementation of the overall  investment plan,  including  carrying out
        decisions to acquire or dispose of investments;


                                       16
<PAGE>

    o   management of investments;

    o   reporting to the  Investment  Company's  Board of Directors on a regular
        basis on the implementation of the investment plan and the management of
        investments;

    o   maintaining all required records;

    o   making arrangements for the safekeeping of assets; and

    o   providing  office space  facilities,  equipment,  material and personnel
        necessary to fulfill its obligations.

The  Adviser  is  responsible  for  all  expenses  incurred  in  performing  the
investment advisory services,  including compensation of officers and payment of
office expenses, and for providing investment management services.

Advisory  Fees.  As  compensation  for its  services to each of the Funds of the
Investment  Company,  the Funds pay the  Adviser a fee at the  following  annual
rates of net assets, calculated as a daily charge:

  Equity Index Fund -- .125%
  All America Fund -- .50%
  Mid-Cap Equity Index Fund  -- .125%
  Aggressive Equity Fund -- .85%
  Bond Fund -- .45%
  Money Market Fund -- .20%

               Investment Advisory Fees Paid by Funds to Adviser*
<TABLE>
<CAPTION>
------------------------------------------------------------------------------------------------------
                 Fund                  1999                   1998                  1997
======================================================================================================
<S>                                   <C>                   <C>                    <C>
             Equity Index*           $ 21,648                    N/A                    N/A
------------------------------------------------------------------------------------------------------
             All America             $318,029               $311,258               $291,620
------------------------------------------------------------------------------------------------------
                 Bond                $121,448               $106,164               $ 94,370
------------------------------------------------------------------------------------------------------
             Money Market            $ 33,028               $  8,216               $  3,930
------------------------------------------------------------------------------------------------------
              Total Fees             $494,153               $425,638               $389,920
------------------------------------------------------------------------------------------------------
</TABLE>
-------------
* The Equity Index Fund began operations on May 3, 1999.

Other Fund Expenses.  Each Fund is  responsible  for paying its advisory fee and
other expenses incurred in its operation, including:

    o   brokers'  commissions,  transfer  taxes and other fees  relating  to the
        Fund's portfolio transactions,

    o   directors' fees and expenses,

    o   fees and expenses of its independent certified public accountants,

    o   fees and expenses of its legal counsel,

    o   the  cost  of  the   printing   and  mailing   semi-annual   reports  to
        shareholders, Proxy Statements, Prospectuses, Prospectus Supplements and
        Statements of Additional Information,

    o   the  cost  of  preparation  and  filing   registration   statements  and
        amendments thereto,

    o   bank transaction charges and custodian's fees,

    o   any proxy solicitors' fees and expenses,

    o   SEC filing fees,

    o   any federal, state or local income or other taxes,

    o   any membership or licensing fees of the Investment Company Institute and
        similar organizations,

    o   fidelity bond and directors' liability insurance premiums, and

    o   any extraordinary expenses, such as indemnification  payments or damages
        awarded in litigation or settlements made.


                                       17
<PAGE>

Expense  Reimbursements by the Adviser.  The Adviser limits the expenses of each
Fund,  other  than for  brokers'  commissions,  transfer  taxes and  other  fees
relating to portfolio transactions and extraordinary expenses, to an annual rate
of .85% of the value of net assets of the All America Fund, .70% of the value of
net  assets of the Bond  Fund,  .40% of the value of the net assets of the Money
Market  Fund and .325% of the value of the net assets of the Equity  Index Fund.
This expense  limitation  obligation of the Adviser is contractual  for 2000 and
will renew each year  thereafter  unless the  Adviser  notifies  the  Investment
Company of its termination at least two weeks prior to the new year. The Adviser
has voluntarily  limited the Funds' expenses since the inception of each Fund to
the  amounts  that  are now  the  contractual  limits,  and  the  Adviser  could
discontinue any voluntary reimbursement obligation at any time.

Subadvisers  For Portion of the All America Fund. For  approximately  20% of the
assets of the All America Fund (the Active Assets), the Adviser has entered into
Subadvisory  Agreements with Fred Alger Management,  Inc. (Alger Management) and
Oak  Associates,  Ltd. (Oak  Associates)  (each a  Subadviser,  and together the
Subadvisers).  Each Subadviser is registered as an investment  adviser under the
Investment Advisers Act of 1940.

Each  of the  Subadvisers  for its  portion  of the All  America  Fund  provides
investment  advisory services,  including research,  making  recommendations and
regular reports to the Board of Directors of the Investment Company, maintenance
of records, and providing all the office space, facilities,  equipment, material
and  personnel  necessary  to  fulfill  its  obligations  under the  Subadvisory
Agreement. The Subadvisers are subject to the supervision of the Adviser and the
Board of Directors of the Investment Company.

Subadvisory Fees. The Adviser, not the Investment Company,  pays the Subadvisers
for advisory  services  they provide to the portion of the All America Fund they
manage  at the  following  annual  rates of net  assets,  calculated  as a daily
charge:

    o   Fred Alger Management -- .45%

    o   Oak Associates -- .30%


                       Fees Paid by Adviser to Subadvisers
                              For Past Three Years
<TABLE>
<CAPTION>
----------------------------------------------------------------------------------------------------------------------
                  Subadviser                           1999                  1998                   1997
======================================================================================================================
<S>                                                  <C>                    <C>                    <C>
          Fred Alger Management, Inc.                $25,923                $25,762                $23,984
----------------------------------------------------------------------------------------------------------------------
             Oak Associates, Ltd.                     $19,346               $18,433                $17,285
----------------------------------------------------------------------------------------------------------------------
   Palley-Needelman Asset Management, Inc.*           $17,147               $17,917                $17,131
----------------------------------------------------------------------------------------------------------------------
                    Total                             $62,416               $62,112                $58,400
----------------------------------------------------------------------------------------------------------------------
</TABLE>

-------------
* A Subadviser until February 1, 2000

Codes of Ethics. The Investment  Company,  the Adviser,  the Subadvisers and the
Securities Corporation have adopted codes of ethics under Rule 17j-1 of the 1940
Act.  Persons  subject to these codes may not purchase  securities  in which the
Funds may invest unless their  purchases have been precleared in accordance with
the codes and do not occur not within certain  black-out  periods  imposed under
the codes.

                            ADMINISTRATIVE AGREEMENTS

Accounting and Recordkeeping Agent

The Adviser serves as accounting and  recordkeeping  agent for the Funds.  Under
its Investment  Accounting  Agreement with the Investment  Company,  the Adviser
performs   accounting   and   recordkeeping   functions   related  to  portfolio
transactions as required by the Investment  Company Act, provides the Investment
Company with accounting and related reports on a periodic basis,  and calculates
the net asset value of each Fund in the manner described in the Prospectus.

As compensation for its services,  the Adviser receives from each Fund a monthly
base fee of $500 plus a monthly minimum fee of $2,000,  or if an asset-based fee
of .0225% of the  Investment  Company net assets  would  result in a fee greater
than  the  aggregate  of  the  Fund  minimums,  the  Fund's  proportion  of  the
asset-based  fee,  and is  reimbursed  for  out-of-pocket  expenses it incurs in
performing its services to the Investment Company.  The Adviser has entered into
an arrangement with Mutual of America for the provision of investment accounting
and  recordkeeping,  legal and certain  other  services in  connection  with the
Investment Company.


                                       18
<PAGE>

Transfer Agent

State Street Bank and Trust Company  (State Street) serves as transfer agent and
dividend disbursing agent for Fund shares. Under its Transfer Agency and Service
Agreement  with the  Investment  Company,  State Street is obligated to maintain
shareholder  accounts  to reflect  purchases  and  redemptions  of Fund  shares;
prepare and transmit  payments for dividends and  distributions  declared by the
Investment Company;  mail proxy materials,  shareholder reports and prospectuses
to  current  shareholders;   and  prepare  and  mail  account  and  confirmation
statements for  shareholders.  State Street's address is P.O. Box 1978,  Boston,
Massachusetts 02105, Attn: Mutual Fund Services.

For its services, State Street receives from each Fund a monthly maintenance fee
based on the number of holders of Fund shares,  ranging from a minimum of $1,000
per month for 0-15 shareholders to $2,500 per month for 51-200 shareholders, and
a trade  processing  fee for each  trade  and is  reimbursed  for  out-of-pocket
expenses.

                      PORTFOLIO TRANSACTIONS AND BROKERAGE

Selection of Brokers and Dealers
--------------------------------------------------------------------------------

The Adviser and each  Subadviser are  responsible  for decisions to buy and sell
securities  for the  Funds of the  Investment  Company  for which  they  provide
services as well as for selecting brokers and, where applicable, negotiating the
amount of the commission rate paid.

    o   The Adviser and Subadvisers select  broker-dealers  which, in their best
        judgment,  provide prompt and reliable  execution at favorable  security
        prices and reasonable commission rates.

    o   They may select broker-dealers which provide them with research services
        and may cause a Fund to pay such broker-dealers commissions which exceed
        those  other  broker-dealers  may have  charged,  if in  their  view the
        commissions  are  reasonable  in relation to the value of the  brokerage
        and/or research services provided by the broker-dealer.

    o   When purchasing or selling  securities  trading on the  over-the-counter
        market,   the  Adviser  and  Subadvisers  will  generally   execute  the
        transaction   with  a  broker  engaged  in  making  a  market  for  such
        securities.

    o   The  Adviser  and  Subadvisers  may  place  certain  orders  with  their
        affiliates, subject to the requirements of the 1940 Act.

    o   No  transactions  may be  effected  by a Fund with an  affiliate  of the
        Adviser or a Sub-Adviser acting as principal for its own account.

Brokerage  commissions  are  negotiated,  as there are no  standard  rates.  All
brokerage  firms  provide  the  service of  execution  of the order  made.  Some
brokerage  firms  routinely  provide  research  and  statistical  data to  their
customers,  and some firms  customarily  provide  research reports on particular
companies and industries to customers that place a certain volume of trades with
them.

The Adviser,  and each  Subadviser,  will place  orders with  brokers  providing
useful research and statistical  data services if reasonable  commissions can be
negotiated for the total services furnished even though lower commissions may be
available  from brokers not  providing  such  services.  The  Adviser,  and each
Subadviser,  uses  these  services  in  connection  with  all of its  investment
activities,  and some of the data or services  obtained in  connection  with the
execution of  transactions  for the  Investment  Company may be used in managing
other investment accounts.  Conversely,  data or services obtained in connection
with  transactions  in  other  accounts  may be used by the  Adviser,  and  each
Subadviser,  in providing  investment advice to the Investment  Company.  To the
extent that the Adviser, and each Subadviser, uses research and statistical data
services so obtained,  its  expenses may be reduced and such data has  therefore
been and is one of the factors  considered by the Adviser,  and each Subadviser,
in determining its fee for investment advisory services.

At times,  transactions for the Investment Company may be executed together with
purchases or sales of the same  security for other  accounts of the Adviser or a
Subadviser.  When making concurrent transactions for several accounts, an effort
is made to allocate executions fairly among them.  Transactions of this type are
executed only when the Adviser,  or a Subadviser,  believes it to be in the best
interests  of the  affected  Fund(s),  as well as any other  accounts  involved.
However,  the possibility exists that concurrent  executions may work out to the
disadvantage of the Fund(s) involved.


                                       19
<PAGE>

The Investment Company paid aggregate brokerage  commissions of $46,772 in 1999,
$56,490 in 1998 and $47,705 in 1997.

Commissions to Affiliated Brokers
--------------------------------------------------------------------------------

During  the  past  three  years,  the  Investment  Company  has  paid  brokerage
commissions   to   Mutual  of   America   Securities   Corporation   (Securities
Corporation),  an  affiliate of the Adviser,  through an  introducing  brokerage
arrangement  with Bear Stearns  Securities  Corp., and to Fred Alger & Co. (Fred
Alger), an affiliate of Alger Management, Inc., as follows:

<TABLE>
<CAPTION>
---------------------------------------------------------------------------------------------------------------
                   Year of                      Commissions            % of Total       % of Aggregate Dollars
               Payment/Broker                      Paid             Commissions Paid        of Transactions
===============================================================================================================
<S>                                              <C>                     <C>                   <C>
 1999 -- Securities Corporation                  $     0                    0%                     0%
---------------------------------------------------------------------------------------------------------------
 1998 -- Securities Corporation                  $     0                    0%                     0%
---------------------------------------------------------------------------------------------------------------
 1997 -- Securities Corporation                  $ 2,070                 4.15%                   4.0%
---------------------------------------------------------------------------------------------------------------
 1999 -- Fred Alger                              $11,843                 25.3%                  16.5%
---------------------------------------------------------------------------------------------------------------
 1998 -- Fred Alger                              $15,470                 27.4%                  23.0%
---------------------------------------------------------------------------------------------------------------
 1997 -- Fred Alger                              $18,793                 37.6%                  30.8%
---------------------------------------------------------------------------------------------------------------
</TABLE>

The  purchases and sales placed  through Fred Alger related  primarily to stocks
issued by companies with smallermarket capitalizations,  for which execution may
be more difficult.

Portfolio Turnover
--------------------------------------------------------------------------------

The Adviser and the Subadvisers do not consider  portfolio turnover rate to be a
limiting factor when they deem it appropriate to purchase or sell securities for
a Fund. The portfolio turnover rate for a Fund in any year will depend on market
conditions, and the rate may increase depending on market conditions or if a new
portfolio  manager for a Fund  restructures the Fund's  holdings.  The Insurance
Companies'  Separate  Accounts do not pay taxes on the  investment  gains of the
Funds. As a consequence,  the Adviser and Subadvisers do not consider how long a
Fund has held a security,  or how capital gain upon sale would be characterized,
in deciding whether to sell that security.

The  Equity  Index  Fund and the  Indexed  Assets of the All  America  Fund each
attempt to duplicate the investment  results of the S&P 500 Index.  As a result,
the Adviser  anticipates  that these Funds will hold  investments  generally for
longer periods than actively managed funds.

                   PURCHASE, REDEMPTION AND PRICING OF SHARES

Calculation of Net Asset Value
--------------------------------------------------------------------------------

An investor  purchases or redeems  shares of a Fund at net asset value. A Fund's
net asset value is equal to:

    o   the sum of the value of the securities the Fund holds,

    o   plus any cash or other assets, including interest and dividends accrued,
        and

    o   minus all liabilities, including accrued expenses.

The net asset value of each Fund is determined once daily  immediately after the
declaration of dividends,  if any, and is determined as of the time of the close
of the regular  trading  session on the New York Stock Exchange  (generally 4:00
p.m. Eastern Time) on each day during which such Exchange is open for trading.

A Fund's  net  asset  value  per share is equal to the  Fund's  net asset  value
divided by the number of Fund shares outstanding.


                                       20
<PAGE>

Pricing of Securities Held by the Funds
--------------------------------------------------------------------------------

In  determining a Fund's net asset value,  the Adviser must value the securities
and other assets the Fund owns.

1)  If market  quotations are readily  available for an investment,  the Adviser
    uses market value as follows:

    o   An  equity  security  will be  valued  at the last  sale  price  for the
        security on the principal  exchange on which the security is traded,  or
        at the last bid price on the  principal  exchange on which such security
        is traded if such bid price is of a more  recent  day than the last sale
        price.

    o   For any  equity  security  not traded on an  exchange  but traded in the
        over-the-counter   market,  the  value  will  be  the  last  sale  price
        available, or if no sale, at the latest available bid price.

    o   Debt  securities  will be  valued  at a  composite  fair  market  value,
        "evaluated  bid,"  which  may be the last  sale  price,  by a  valuation
        service selected by the Adviser and approved by the Investment Company's
        Board of Directors.

2)  If there are any portfolio  securities or assets for which market quotations
    are not readily  available,  the  Adviser  will use fair value  pricing,  as
    determined in good faith by or under the direction of the Board of Directors
    of the Investment Company.

3)  If a money market  security has a remaining  maturity of 60 days or less,the
    Adviser  will use the  amortized  cost method of  valuation  to  approximate
    market value, as follows:

    o   A security is  initially  valued at cost on the date of purchase  (or at
        market  value on the 61st day prior to maturity if the security had more
        than 60 days  remaining to maturity at date of purchase by a Fund),  and
        the Adviser assumes constant  proportionate  amortization in value until
        maturity of any discount or premium.

    o   The maturity of a variable rate  certificate  of deposit is deemed to be
        the next coupon date on which the interest rate is to be adjusted.

    o   Market  value  will be used  instead  if the  amortized  cost  value  is
        materially different from the actual market value of the security.

4)  For stock options and futures contracts, these valuations apply:

    o   Stock  options  written by a Fund are valued at the mean of the last bid
        and asked price on the principal exchange where the option is traded, as
        of the close of trading on that exchange.

    o   When a Fund writes a call option,  the amount of the premium is included
        in the Fund's assets and the market value of the call is included in its
        liabilities and adjusted thereafter to current market value.

        o  If a call  expires  or if the Fund  enters  into a  closing  purchase
           transaction,  it  realizes  a gain  (or a loss  if  the  cost  of the
           transaction  exceeds the premium  received when the call was written)
           without regard to any unrealized  appreciation or depreciation in the
           underlying  securities,  and the  liability  related  to such call is
           extinguished.

        o  If a call is  exercised,  the Fund  realizes  a gain or loss from the
           sale of the  underlying  securities  and  the  proceeds  of the  sale
           increased by the premium originally received.

    o   A premium a Fund pays on the  purchase of a put will be deducted  from a
        Fund's assets and an equal amount will be included as an investment  and
        subsequently adjusted to the current market value of the put.

    o   Futures contracts,  and options thereon, traded on commodities exchanges
        are valued at their  official  settlement  price as of the close of such
        commodities exchanges.


                                       21
<PAGE>

                       TAXATION OF THE INVESTMENT COMPANY

Taxes on Funds' Investment Earnings and Income
--------------------------------------------------------------------------------

Each Fund  intends to qualify and elect  treatment  as a  "regulated  investment
company"  under  Subchapter M of the Internal  Revenue Code. A Fund will not owe
Federal income tax on the ordinary income and net realized capital gains that it
distributes to shareholders,  if it qualifies as a regulated  investment company
and satisfies certain minimum income distribution rules.

If the  Investment  Company  were to fail to qualify as a  regulated  investment
company, it would be subject to Federal income tax on the Funds' ordinary income
and net realized  capital gains,  whether or not it  distributes  the income and
gains to  shareholders.  If the Funds  were to pay  Federal  income  tax,  their
investment performance would be negatively affected.

Section 4982 of the Code  imposes an excise tax of 4% on a regulated  investment
company that does not make a "required  distribution"  to shareholders of 98% of
its ordinary  income for each  calendar  year and 98% of its capital gain income
for  the  one  year  period  ending  October  31  of  each  year,  plus  certain
undistributed  income  from  previous  years.  Each  Fund  intends  to make  the
"required  distributions" and to thereby avoid the excise tax. If a Fund were to
distribute less than the required amount,  then the 4% excise tax would apply to
the deficiency, which would reduce the investment performance of the Funds.

Income Dividends and Capital Gains Distributions
--------------------------------------------------------------------------------

The Investment Company declares dividend distributions semi-annually (at the end
of June and end of December) in the case of net  investment  income and annually
(at the end of December) in the case of net realized short or long-term  capital
gains. A shareholder's  dividend  distributions are automatically  reinvested in
full or  fractional  shares  of the  Fund  to  which  they  relate,  unless  the
shareholder  elects on its application or an amendment to the application either
(1)  to  receive  dividend  distributions  in  cash  or,  (2)  in  the  case  of
distributions  by the Equity  Index,  All America  and Bond  Funds,  to purchase
shares of the Money Market Fund (in which case the $5,000 minimum is waived).

Cash dividend  distributions are paid by wire transfer of Federal funds. Payment
of dividends  normally  will be made on the first  business day of the following
month at the net asset value as of the last  business  day of the month in which
the dividend  distribution is declared.  Dividends and other  distributions  are
taxable to a Fund's  shareholders  even though they are reinvested in additional
shares of the Fund.

                            TAXATION OF SHAREHOLDERS

The discussion below provides  information that may be helpful to a shareholder,
but it is not a detailed  explanation  of the Federal  income tax treatment of a
shareholder.  In  addition,  the  discussion  does not address  state,  local or
foreign  taxation.  Potential  purchasers of shares of a Fund are  encouraged to
consult their tax advisers regarding specific questions as to Federal,  state or
local taxes. Foreign investors should consider applicable foreign taxes in their
evaluation of an investment in a Fund as well. Many of the rules set forth below
do not apply to  not-for-profit  organizations  and other  entities that are not
subject to Federal income taxation.

Characterization  of Funds'  distributions.  Dividends paid by a Fund out of its
ordinary income and  distributions of a Fund's net realized  short-term  capital
gains (jointly, the "ordinary income dividends") are taxable to its shareholders
as ordinary  income.  Distributions  made from a Fund's net  realized  long-term
capital gains,  including  long-term gains from certain  transactions in futures
and  options,   (the  "capital  gain  dividends")  are  taxable  to  the  Fund's
shareholders as long-term capital gain.

Passive Foreign Investment  Company ("PFIC").  Due to investment laws in certain
foreign countries, it is possible that a Fund's investments in equity securities
in such  countries  may consist of shares of  investment  companies  (or similar
investment  entities)  organized under foreign law or of ownership  interests in
special  accounts,  trusts or  partnerships.  If the Fund purchases shares of an
investment  company (or similar  investment entity) organized under foreign law,
the Fund will be treated as owning shares in a PFIC for U.S.  federal income tax
purposes  and  may be  subject  to  U.S.  Federal  income  tax  law  in  certain
circumstances.

Foreign currency gains or losses.  Foreign currency gains or losses from certain
debt  instruments are generally  treated as ordinary income or loss. These gains
or losses will generally  increase or decrease the amount of a Fund's investment
company  taxable income  available to be distributed to shareholders as ordinary
income.


                                       22
<PAGE>

Additionally,  if losses of this nature exceed a Fund's other investment company
taxable  income  during a  taxable  year,  a Fund  would not be able to make any
ordinary income dividend  distributions.  Any such  distribution made before the
losses were realized (but in the same taxable year) would be  recharacterized as
a return of capital to a Fund's shareholders, thereby reducing the shareholders'
basis in the Fund's shares,  and resulting in a capital gain for any shareholder
who received a distribution  greater than that shareholder's basis in the Fund's
shares (assuming the shares were held as capital assets).

Taxation of Foreign Country Income.  Investment income received by a Fund may be
subject  to  withholding  and other  taxes  imposed by  foreign  countries.  Tax
conventions  between  certain  countries  and the  United  States  may reduce or
eliminate  these  foreign  taxes.  These foreign taxes will reduce the amount of
funds  available for  distributions  by a Fund,  but are included in the taxable
income  reported  by the Fund's  shareholders.  Since  stock and  securities  of
foreign issuers held by any Fund will be limited,  the Fund's  shareholders will
not be able to claim a credit or  deduction  for these  foreign  taxes paid by a
Fund.

Redemptions  and  Exchanges.  Redemptions  and  exchanges of a Fund's shares are
taxable events,  and  shareholders may realize gains or losses on such events. A
shareholder's  loss  realized  on a sale or exchange of shares of a Fund will be
disallowed if the shareholder  acquires other Fund shares  (whether  through the
automatic  reinvestment  of  dividends  or  otherwise)  within a  61-day  period
beginning  30 days  before and ending 30 days after the date that the shares are
disposed of. In such a case,  the basis of the shares  acquired will be adjusted
to reflect  the  disallowed  loss.  Any loss upon the sale or  exchange  of Fund
shares held for six months or less, which is not disallowed,  will be treated as
long-term  capital loss to the extent of any capital gain dividends  received by
the shareholder with respect to such shares.

Original Issue  Discount.  The Funds may purchase debt  securities  that contain
original issue discount.  Original issue discount that accrues in a taxable year
is  treated  as  income  earned  by a Fund and is  subject  to the  distribution
requirements of the Internal Revenue Code. A Fund,  however,  generally will not
receive any cash income for the  original  issue  discount  income it earns in a
taxable year. Accordingly,  there is a risk that the Fund may have to sell other
securities to satisfy distribution requirements under the Internal Revenue Code.
Debt  securities that a Fund acquires also may be subject to the market discount
rules.

Capital  gains  rates for  entities  other than  individuals.  Capital  gains of
corporations are subject to tax at the same rates applicable to ordinary income.
Capital  losses may be used only to offset  capital gains and excess net capital
loss may be carried back three years and forward five years.

Dividends  received  deductions.  Certain  corporations  are  entitled  to a 70%
dividends   received   deduction  for   distributions   from  certain   domestic
corporations.  The Equity  Index Fund and All America  Fund will  designate  the
portion  of any  distributions  that  qualify  for  the 70%  dividends  received
deduction.  The amount  designated  may not exceed  the amount  received  by the
Equity Index Fund or All America Fund for its taxable  year that  qualifies  for
the dividends received deduction.  (Since none of the income of the Bond Fund or
the Money Market Fund is expected to be derived  from  dividends  from  domestic
corporations,  it is not  anticipated  that any portion of the  ordinary  income
dividends  of the Bond  Fund or the  Money  Market  Fund  will  qualify  for the
dividends received deduction.)

Private  Foundations.  Private  foundations  and their  managers  are subject to
excise  taxes  under the Code if they  invest "any amount in such a manner as to
jeopardize the carrying out of any of the  foundation's  exempt  purposes." This
rule  requires  a  foundation  manager,  in making an  investment,  to  exercise
"ordinary  business  care  and  prudence"  under  the  facts  and  circumstances
prevailing at the time of making the investment, in providing for the short-term
and long-term needs of the foundation in carrying out its exempt purposes.

The factors  that a  foundation  manager may take into  account in  assessing an
investment  under this standard include the expected rate of return (both income
and capital appreciation), the risks of rising and falling price levels, and the
need for  diversification  within  the  foundation's  portfolio.  A  substantial
percentage of investments of certain "private operating foundations", as defined
in the Code, may be restricted to assets  directly  devoted to their  tax-exempt
purposes.  Each manager of a private foundation should consult the manager's and
the foundation's tax advisers regarding the foregoing considerations.

Endowment Funds.  Investment managers of endowment funds should consider whether
the  acquisition  by such funds of shares in the Funds is  legally  permissible.
This is not a matter of federal law, but is determined  under  applicable  state
statutes.  It should be noted,  however,  that under the Uniform  Management  of
Institutional  Funds Act,  which has been  adopted  in various  forms by a large
number of states,  participation  in mutual funds or similar  organizations,  in
which funds are  commingled and  investment  determinations  are made by persons
other  than the  governing  board of the  endowment  fund,  is  permitted.  Each
investment  manager of an endowment  fund should  consult the  endowment  fund's
counsel regarding the foregoing considerations.


                                       23
<PAGE>

Retirement Trusts,  including  Qualified Plans. The Funds may accept investments
from tax-qualified  pension,  profit-sharing or stock bonus plans,  governmental
plans and units, and  Taft-Hartley  plans (all such entities  hereinafter  being
referred to as  "Retirement  Trusts").  A fiduciary of a Retirement  Trust other
than a  governmental  plan or unit (a  "Qualified  Plan") is  subject to certain
requirements  under the Employee  Retirement  Income  Security  Act of 1974,  as
amended  (ERISA),  including  the discharge of duties solely in the interest of,
and for the exclusive  purpose of providing  benefits to, the  Qualified  Plan's
participants and beneficiaries.

In  considering  an  investment  in the Funds of a portion  of the assets of any
Qualified Plan, a fiduciary  should consider,  among other factors:  (a) whether
the  investment  is permitted by the  documents  and  instruments  governing the
Qualified  Plan;  (b)  whether  the  investment  satisfies  the  diversification
requirements of Section  404(a)(1)(C)  of ERISA, if applicable;  (c) whether the
investment provides  sufficient  liquidity to permit benefit payments to be made
as they become due; (d) whether the  investment is for the exclusive  purpose of
providing benefits to participants and their beneficiaries;  and (e) whether the
investment  may  constitute a  "prohibited  transaction"  (within the meaning of
Section  406 of ERISA and  Section  4975(c) of the Code).  Each  fiduciary  of a
Qualified  Plan (and any other  person  subject to ERISA)  should  consult  such
person's tax or other advisers regarding the foregoing considerations.

Shareholder Withholding

The  Investment  Company  may be required  to  withhold  for Federal  income tax
("back-up  withholding") from distributions made and the proceeds of redemptions
to a  shareholder  who is not  exempt  from  back-up  withholding,  because  the
shareholder has not provided a correct  taxpayer  identification  number or made
required  certifications,  or when the Investment Company or the shareholder has
been notified by the Internal Revenue Service that the shareholder is subject to
back-up withholding.

Ordinary income  dividends paid by a Fund to a shareholder that is a nonresident
alien  or a  foreign  entity  will be  subject  to a 30%  U.S.  withholding  tax
applicable  to  foreign  persons,  unless a  reduced  rate of  withholding  or a
withholding  exemption is provided  under  applicable  law or an applicable  tax
convention between the United States and a particular  foreign country.  Foreign
shareholders  are  urged  to  consult  their  own tax  advisers  concerning  the
applicability of the U.S. withholding tax.

                        YIELD AND PERFORMANCE INFORMATION

Performance  information is computed separately for each Fund in accordance with
the formulas described below. At any time in the future, total return and yields
may be higher or lower than in the past and there can be no  assurance  that any
historical results will continue.

Yield of the Money  Market Fund.  The Money  Market Fund  calculates a seven-day
"current  yield"  (eight days when the seventh  prior day has no net asset value
because the  Investment  Company is closed on that day) based on a  hypothetical
shareholder  account  containing  one share at the  beginning  of the  seven-day
period. The return is calculated for the period by determining the net change in
the hypothetical account's value for the period,  excluding capital changes. The
net change is divided by the share value at the  beginning of the period to give
the base period return.  This base period return is then  multiplied by 365/7 to
annualize the yield figure, which is carried to the nearest one-hundredth of one
percent.

Realized capital gains or losses and unrealized  appreciation or depreciation of
the assets of the Money Market Fund are included in the hypothetical account for
the beginning of the period but changes in these items during the period are not
included in the value for the end of the period.  Income  other than  investment
income is  excluded  for the period.  Values also  reflect  asset  charges  (for
advisory fees) as well as brokerage fees and other expenses.

Current yields will fluctuate daily. Accordingly, yields for any given seven-day
period do not necessarily represent future results. It should be remembered that
yield depends on the type, quality,  maturities and rates of return of the Money
Market Fund's investments, among other factors. The Money Market Fund yield does
not reflect the cost of insurance and other insurance  company  separate account
charges.  It also should not be compared to the yield of money market funds made
available  to the general  public  because  they may use a  different  method to
calculate yield. In addition,  their yields are usually  calculated on the basis
of a constant one dollar price per share and they pay out earnings and dividends
which accrue on a daily basis.


                                       24
<PAGE>

The following is an example of the  calculation of the Money Market Fund's yield
for  the  seven-day  period  ended  December  28,  1999.  Yields  may  fluctuate
substantially from the example shown.

      1. Value for December 21, 1999

      2. Value for  December  28,  1999  (exclusive  of capital  changes and any
         non-investment income)

      3. Net change equals Line 1 subtracted from Line 2

      4. Base period return equals Line 3 divided by Line 1

      5. Current yield equals Line 4 annualized (multiplied by 365/7)

The Money Market Fund calculates  effective yield by following Steps 1 - 4 above
to obtain a base period  return,  then  compounding  the base  period  return as
follows:

              Effective Yield = [(Base Period Return + 1) 365/7] -1

Calculation  of Total  Return and Average  Annual  Total  Return.  Total  Return
reflects  changes in the price of a Fund's shares and assumes that any dividends
or capital gains  distributions are reinvested in that Fund's shares immediately
rather than paid to the investor in cash.

Average  Annual  Total  Return is  calculated  by  finding  the  average  annual
compounded rates of return of a hypothetical  investment over the periods shown,
according  to the  following  formula  (Total  Return  is  then  expressed  as a
percentage):

         T = (ERV/P)1/n -1

Where:

         P = a hypothetical  initial  payment of $1,000
         T = average annual total return
         n = number of years
         ERV = ending  redeemable  value.  ERV is the  value,  at the end of the
               applicable  period,  of a hypothetical  $1,000 investment made at
               the beginning of the applicable period.

                           Average Annual Total Return
                      For Periods Ended December 31, 1999*

              Fund                              One Year         Life of Fund*
              ----                              --------         -------------
              Equity Index                         N/A                9.0%
              All America                         26.0%              22.8%
              Bond                                (3.5)%              5.0%
              Money Market                         4.9%               5.1%

                           Cumulative Total Return For
                        Periods Ended December 31, 1999*

              Fund                              One Year         Life of Fund*
              ----                              --------         -------------
              Equity Index                         N/A                9.0%
              All America                         26.0%             112.2%
              Bond                                (3.5)%             19.5%
              Money Market                         4.9%              14.2%

-------------
*    Dates the Funds commenced operations:  All America and Bond Funds -- May 1,
     1996;  the Money  Market Fund -- May 1, 1997;  and the Equity Index Fund --
     May 3, 1999.

Yield Of The Bond Fund. Yield of the shares of the Bond Fund will be computed by
annualizing net investment  income,  as determined by the Commission's  formula,
calculated  on a per share basis,  for a recent  one-month or 30-day  period and
dividing  that  amount by the net asset  value per share of the Fund on the last
trading day of that period.  Net investment income will reflect  amortization of
any market  value  premium or discount of fixed  income  securities  (except for
obligations  backed by  mortgages  or other  assets)  over such  period  and may
include  recognition  of a pro  rata  portion  of the  stated  dividend  rate of
dividend paying portfolio securities.  The Yield of the Fund will vary from time
to time depending upon market  conditions,  the composition of the portfolio and
operating expenses allocated to the Fund.


                                       25
<PAGE>

Performance  Comparisons.  Each  Fund may from  time to time  include  the Total
Return,   the  Average   Annual   Total  Return  and  Yield  of  its  shares  in
advertisements  or in information  furnished to  shareholders.  The Money Market
Fund may also from time to time  include  the Yield and  Effective  Yield of its
shares in information furnished to shareholders.

Each Fund may from time to time also  include  the  ranking  of its  performance
figures  relative to such  figures  for groups of mutual  funds  categorized  by
Lipper Analytical  Services  ("Lipper") as having the same or similar investment
objectives or by similar  services that monitor the performance of mutual funds.
Each Fund may also from time to time compare its  performance  to average mutual
fund performance figures compiled by Lipper in Lipper Performance Analysis.

Advertisements  or information  the Investment  Company  furnishes to current or
prospective  investors  also may  include  evaluations  of a Fund  published  by
nationally  recognized  ranking services and by financial  publications that are
nationally recognized.  These publications may include Barron's,  Business Week,
CDA Technologies,  Inc., Changing Times, Dow Jones Industrial Average, Financial
Planning,   Financial  World,  Forbes,  Fortune,   Hulbert's  Financial  Digest,
Institutional  Investor,  Investors Daily, Money,  Morningstar Mutual Funds, The
New York  Times,  Stanger's  Investment  Adviser,  Value  Line,  The Wall Street
Journal, Wiesenberger Investment Company Service and USA Today.

In reports or other communications to shareholders,  the Investment Company also
may describe general economic and market conditions  affecting the Funds and may
compare the  performance  of the Funds with (1) that of mutual funds included in
the rankings prepared by Lipper or similar investment  services that monitor the
performance  of  insurance  company  separate  accounts  or  mutual  funds,  (2)
IBC/Donoghue's  Money Fund Report,  (3) other appropriate  indices of investment
securities  and averages for peer  universe of funds which are described in this
Statement of Additional Information, or (4) data developed by the Adviser or any
of the Subadvisers derived from such indices or averages.

Comparative Indices for the Funds
--------------------------------------------------------------------------------

The  Investment  Company  compares the  performance of each Fund (other than the
Money Market  Fund)  against a widely  recognized  index or indices for stock or
bond market performance, based on the type of securities the Fund purchases. The
annual and semi-annual  financial  reports that the Investment  Company prepares
will contain graphs with the Funds' performances compared to their indices.

It is not  possible for an investor to directly  invest in an  unmanaged  index.
Performance  comparisons  to indices are for  informational  purposes and do not
reflect  any actual  investment.  The Funds pay  investment  advisory  and other
expenses that are not applicable to unmanaged indices.

Equity Index Fund and All America  Fund:  Performance  of each of these Funds is
compared  to the  Standard & Poor's  Composite  Index of 500 Stocks (the S&P 500
Index).

The S&P 500 Index is a market  value-weighted  and  unmanaged  index showing the
changes in the aggregate  market value of 500 stocks relative to the base period
1941-43.  The S&P 500 Index is  composed  almost  entirely  of common  stocks of
companies  listed on the NYSE,  although  the common  stocks of a few  companies
listed on the  American  Stock  Exchange  or traded  OTC are  included.  The 500
companies  represented include approximately 400 industrial concerns, as well as
financial  services,  utility  and  transportation  concerns.  The S&P 500 Index
represents about 80% of the market value of all issues traded on the NYSE.

Mid-Cap  Equity  Index Fund:  Performance  is compared to the  Standard & Poor's
MidCap 400 Index (the S&P MidCap 400 Index).

The S&P MidCap 400 Index is a market value weighted and unmanaged  index showing
the changes in the aggregate market value of 400 stocks issued by U.S. companies
with medium  market  capitalizations,  generally  between  $150  million and $13
billion and with an average market value of approximately $4 billion. A majority
of the  stocks  are  listed on the New York  Stock  Exchange  and a  significant
portion are traded on the Nasdaq National Market (over-the-counter).

Aggressive Equity Fund: Performance is compared to the Russell 2000 Index.

The Russell  2000 Index is a market  capitalization  weighted  index of the 2000
smallest companies in the Russell 3000 Index. The largest company in the Russell
2000 Index has a current market value of  approximately  $1 billion.  The market
capitalization  of companies in the Index varies based on market  conditions and
the companies included in the Index, which is adjusted yearly.


                                       26
<PAGE>

Bond Fund:  Performance is compared to the Lehman Brothers  Government/Corporate
Bond Index (the Lehman Government/Corporate Index).

The  Lehman  Government/Corporate  Index is a  measure  of the  market  value of
approximately  5,300 bonds with a face value  currently in excess of $1 million,
which  have at  least  one  year to  maturity  and are  rated  "Baa"  or  higher
("investment grade") by a nationally recognized statistical rating agency.

                      DESCRIPTION OF CORPORATE BOND RATINGS

Description of Corporate bond ratings of Moody's Investors Services, Inc.:

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

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

A   -- Bonds which are rated A possess many favorable investment  attributes and
       are to be considered as upper medium grade  obligations.  Factors  giving
       security to principal and interest are  considered  adequate but elements
       may be present which suggest a susceptibility  to impairment  sometime in
       the future.

Baa -- Bonds which are rated Baa are  considered  as medium  grade  obligations,
       i.e.,  they are neither  highly  protected nor poorly  secured.  Interest
       payments  and  principal  security  appear  adequate  for the present but
       certain protective  elements may be lacking or may be  characteristically
       unreliable  over any great  length of time.  Such bonds lack  outstanding
       investment  characteristics and in fact have speculative  characteristics
       as well.

Ba  -- Bonds which are rated Ba are judged to have speculative  elements;  their
       future  cannot be considered  as well  assured.  Often the  protection of
       interest and principal payments may be very moderate and thereby not well
       safeguarded  during both good and bad times over the future.  Uncertainty
       of position characterizes bonds in this class.

B   -- Bonds which are rated B generally lack  characteristics  of the desirable
       investment.   Assurance  of  interest  and   principal   payments  or  of
       maintenance  of other terms of the contract  over any long period of time
       may be small.

Caa -- Bonds  which are rated Caa are of poor  standing.  Such  issues may be in
       default  or there may be  present  elements  of danger  with  respect  to
       principal or interest.

Ca  -- Bonds which are rated Ca represent obligations which are speculative in a
       high  degree.  Such  issues are often in  default  or have  other  marked
       shortcomings.

C   -- Bonds which are rated C are the lowest rated class of bonds and issues so
       rated  can be  regarded  as  having  extremely  poor  prospects  of  ever
       attaining any real investment standing.

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


Description of corporate bond ratings of Standard & Poor's:


AAA -- Debt rated AAA has the  highest  rating  assigned  by  Standard & Poor's.
       Capacity to pay interest and repay principal is very strong.

AA  -- Debt  rated AA has a very  strong  capacity  to pay  interest  and  repay
       principal and differs from the higher rated issues only in small degree.

A   -- Debt rated A has a strong  capacity to pay interest and repay  principal,
       although  it is  somewhat  more  susceptible  to the  adverse  effects of
       changes in  circumstances  and  economic  conditions  than debt in higher
       rated categories.


                                       27
<PAGE>

BBB -- Debt rated BBB is regarded as having an adequate capacity to pay interest
       and repay principal.  Whereas it normally  exhibits  adequate  protection
       parameters,  adverse economic  conditions or changing  circumstances  are
       more  likely to lead to a weakened  capacity  to pay  interest  and repay
       principal for debt in this category than in higher-rated categories.

BB  -- Debt rated BB, B, CCC and CC is regarded,  on balance,  as  predominantly
B      speculative  with  respect to the  issuer's  capacity to pay interest and
CCC    repay  principal  in  accordance  with the  terms of the  obligation.  BB
CC     indicates the lowest degree of  speculation  and CC the highest degree of
       speculation. While such debt will likely have some quality and protective
       characteristics,  these are  outweighed by large  uncertainties  or major
       risk exposures to adverse conditions.

C   -- The rating C is reserved  for income  bonds on which no interest is being
       paid.

D   -- Debt rated D is in default,  and payment of interest and/or  repayment of
       principal is in arrears.

Plus (+) or Minus (-):  The  ratings  from "AA" to "BB" may be  modified  by the
addition  of a plus or minus  sign to show  relative  standing  within the major
rating categories.

                           DISTRIBUTION OF FUND SHARES

Mutual of America  Securities  Corporation,  320 Park Avenue, New York, New York
10022 (the  Distributor),  an  indirect,  wholly-owned  subsidiary  of Mutual of
America  Life,  serves as the  principal  underwriter  and  distributor  of Fund
shares.  The Distributor  and Mutual of America Life,  whose address is 320 Park
Avenue, New York, New York 10022, are affiliates of the Adviser.

The Distributor does not receive  compensation for distributing Fund shares, and
it is not  obligated  to  distribute  any specific  amount of Fund  shares.  The
Distributor  is  registered  with the  Securities  and Exchange  Commission as a
broker-dealer and is a member of the National Association of Securities Dealers,
Inc. Registered representatives of the Distributor,  located in 36 field offices
throughout the United States,  participate in the  distribution of shares of the
Funds.

Shares of the Fund are offered on a continuous  basis.  There is no sales charge
or deferred sales charge for the purchase of Fund shares.

                                  LEGAL MATTERS

The legal validity of the shares  described in the Prospectus has been passed on
by Patrick A. Burns,  Esq.,  Senior Executive Vice President and General Counsel
of the Investment Company.

                              INDEPENDENT AUDITORS

The financial  statements  included in this Statement of Additional  Information
have been audited by Arthur Andersen LLP,  independent  public  accountants,  as
indicated  in their  report with respect  thereto,  and are  included  herein in
reliance upon the authority of said firm as experts in giving said report.

Arthur  Andersen  LLP have been  selected  as the  independent  auditors  of the
Investment  Company for its fiscal year ending December 31, 2000.  Their address
is 1345 Avenue of the Americas, New York, New York 10105.

                                   CUSTODIAN

The Chase Manhattan Bank, 1285 Avenue of the Americas, New York, New York 10019,
acts as Custodian of the Investment Company's

                        USE OF STANDARD & POOR'S INDEXES

The Equity  Index  Fund,  the  Indexed  Assets of the All  America  Fund and the
Mid-Cap  Equity  Index Fund are not  sponsored,  endorsed,  sold or  promoted by
Standard & Poor's,  a division of The McGraw-Hill  Companies,  Inc.  (S&P).  S&P
makes no  representation or warranty,  express or implied,  to the owners of the
Equity Index Fund,  the All America Fund,  the Mid-Cap  Equity Index Fund or any
member of the public  regarding  the  advisability  of investing  in  securities
generally  or in the Equity  Index  Fund,  the All  America  Fund or the Mid-Cap
Equity  Index Fund  particularly  or the ability of the S&P 500 Index or the S&P
MidCap  400  Index  to  track  general  stock  market  performance.  S&P's  only
relationship  to the Licensee is the licensing of certain  trademarks  and trade
names of S&P and of the S&P 500  Index  and S&P  MidCap  400  Index,  which  are
determined,  composed and  calculated by S&P without  regard to the Equity Index
Fund,  the All  America  Fund  or the  Mid-Cap  Equity  Index  Fund.  S&P has


                                       28
<PAGE>

no obligation to take the needs of the  Investment  Company or the owners of the
Equity Index Fund,  the All America  Fund or the Mid-Cap  Equity Index Fund into
consideration in determining,  composing or calculating the S&P 500 Index or the
S&P MidCap 400 Index. S&P is not responsible for and has not participated in the
determination  of the net asset values of the Equity Index Fund, the All America
Fund or the Mid-Cap Equity Index Fund, the amount of the shares of such Funds or
the  timing of the  issuance  or sale of the  Funds.  S&P has no  obligation  or
liability in  connection  with the  administration,  marketing or trading of the
Equity Index Fund and S&P MidCap 400 Index,  the All America Fund or the Mid-Cap
Equity Index Fund.

S&P does not guarantee the accuracy and/or the completeness of the S&P 500 Index
or the S&P MidCap 400 Index or any data  included  therein and S&P shall have no
liability for any errors,  omissions,  or  interruptions  therein.  S&P makes no
warranty,  express or implied,  as to results to be  obtained by the  Investment
Company,  owners of the Equity  Index Fund,  the All America Fund or the Mid-Cap
Equity  Index  Fund,  or any other  person or entity from the use of the S&P 500
Index or the S&P MidCap  400 Index or any data  included  therein.  S&P makes no
express or  implied  warranties,  and  expressly  disclaims  all  warranties  or
merchantability  or fitness for a particular  purpose or use with respect to the
S&P 500 Index or the S&P MidCap 400 Index or any data included therein.  Without
limiting any of the foregoing,  in no event shall S&P have any liability for any
special,  punitive,  indirect or consequential damages (including lost profits),
even if notified of the possibilities of such damages.

                              FINANCIAL STATEMENTS

                                                                         Page
                                                                         ----

Financial  statements of the Investment  Company for the year ended December 31,
1999 are included as follows:

President's Message ..................................................... 30

Portfolio Management Discussions ........................................ 31

Portfolio of Investments in Securities:
  All America Fund ...................................................... 33

  Equity Index Fund ..................................................... 41

  Bond Fund ............................................................. 46

  Money Market Fund ..................................................... 48

Statement of Assets and Liabilities ..................................... 49

Statement of Operations ................................................. 50

Statements of Changes in Net Assets ..................................... 51

Financial Highlights .................................................... 52

Notes to Financial Statements ........................................... 53

Report of Independent Public Accountants ................................ 56


Condensed  financial  statements  of the  Investment  Company for the six months
ended June 30, 2000 (unaudited) are included as follows:

President's Message ..................................................... 57

Performance Graphs ...................................................... 58

Portfolio of Investments in Securities:
  All America Fund ...................................................... 61

  Equity Index Fund ..................................................... 69

  Bond Fund ............................................................. 74

  Money Market Fund ..................................................... 76

Statement of Assets and Liabilities ..................................... 77

Statement of Operations ................................................. 78

Statements of Changes in Net Assets ..................................... 79

Financial Highlights .................................................... 81

Notes to Financial Statements ........................................... 83


                                       29
<PAGE>


--------------------------------------------------------------------------------
                  MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                   320 PARK AVENUE, NEW YORK, NEW YORK 10022
--------------------------------------------------------------------------------

Dear Shareholder:

      We are  pleased to  present  the  Mutual of  America  Institutional  Funds
results  for the year  ending  December  31,  1999.  These  Funds  are  designed
primarily  as  investment   vehicles  for  endowments,   foundations  and  other
institutional investors.

      The U.S. economy enjoyed an enviable  combination of strong Gross Domestic
Product growth,  low inflation,  solid corporate  profits and moderate  interest
rates in 1999.  The  economy  continued  its near record  expansion  as consumer
confidence reached an all-time high, due largely to high employment levels and a
surging stock market. Global economies stabilized,  providing further foundation
and fuel for the domestic economy.

      The Federal Reserve,  concerned with a strong expanding  economy and tight
labor  markets,  responded  with three rate  increases  totaling 75 basis points
during 1999. Long rates rose approximately 140 basis points during the year. The
strong economy,  higher  commodity prices and tight labor markets have increased
the potential for higher rates going forward.

      The equity market,  as  represented by the S&P 500 Index,  posted a record
ninth year of positive  return.  Technology  was the dominant  factor across all
capitalization  levels within the equity  markets,  as evidenced by the NASDAQ's
remarkable 86% return.  Investors seeking growth  opportunities  favored smaller
capitalization  stocks,  allowing  them to outperform  the steadier,  but slower
growing, large caps.

                   Total Returns-Year Ended December 31, 1999

      The total return  performance of each Fund for the year ended December 31,
1999 was as follows (please note that the Equity Index Fund commenced operations
on May 3, 1999):

        All America Fund ..................................      +26.0%
        Equity Index Fund .................................      + 9.0%
        Bond Fund .........................................      - 3.5%
        Money Market Fund .................................      + 4.9%

      All performance is historical,  assumes  reinvestment of all dividends and
capital gains,  and is not indicative of future results.  Investment  return and
principal value will fluctuate,  so shares, when redeemed,  may be worth more or
less than when purchased.

      On the pages which immediately  follow are brief  presentations and graphs
for each Fund  (except  the Money  Market  Fund and  Equity  Index  Fund)  which
illustrate each Fund's respective:

      o     Historical total return achieved over specified  periods,  expressed
            as an annual average rate and as a cumulative rate;
      o     Equivalent  in dollars of a $10,000  hypothetical  investment at the
            beginning of each specified period; and
      o     Historical  performance  compared  with an  appropriate  index.

      The portfolios of each Fund and financial  statements are presented in the
      pages which then follow.

      Thank you for your continued investment in our Funds.


                                     Sincerely,
                                     /s/ Dolores Morrissey
                                     -----------------------
                                     Dolores Morrissey
                                     Chairman of the Board and President,
                                     Mutual of America Institutional Funds, Inc.


                                       30
<PAGE>

                               EQUITY INDEX FUND

      The Equity Index Fund invests in the 500 stocks which comprise the S&P 500
Index. The S&P 500 is a market-value  weighted index of 500 domestic stocks that
are traded on the New York Stock  Exchange,  American  Stock Exchange and NASDAQ
National  Market  System.  The weightings  make each company's  influence on the
Index's  performance  directly  proportional to that company's market value. The
companies included in the Index tend to be industry leaders.  The Fund commenced
operations  effective May 3, 1999. At year-end,  the Fund returned  9.0%,  which
matched the Index's  performance for the same time period.  The prevailing theme
of 1999 was the dominance of technology,  which was the best performing  sector,
returning  54% for the May through  December  period.  For the same period,  the
Index was  outperformed by two other sectors,  namely Capital Goods and Consumer
Cyclicals.  The worst  performing  sectors were  Transportation  and Financials.
Investor  perceptions of possible Federal Reserve  actions,  a bias toward large
cap stocks and a persistent  search for growth drove multiple  expansion,  which
contributed two-thirds of annual return.

                                ALL AMERICA FUND

      The All America Fund's investment  objective is to outperform the Standard
& Poor's 500 Index.  The Fund is  approximately  60%  invested in the 500 stocks
that  comprise the S&P 500. In 1999,  the remaining 40% of the Fund was actively
managed  by  three   subadvisors  and  Mutual  of  America  Capital   Management
Corporation.  Each manager invests approximately 10% of the Fund's assets, using
a different investment approach. The four approaches are large cap growth, small
cap growth, large cap value and small cap value.

      The Fund returned  26.0% for 1999,  exceeding the Index's return of 21.0%.
The Fund's 1999  performance  reflected  investors'  continued  quest for growth
opportunities--both  the  large  and small  cap  growth  portions  significantly
outperformed  the value  segments.  Nevertheless,  the  small cap value  segment
performed  strongly.  Only the  large  cap value  portion  turned in a  negative
performance.

                         GROWTH OF A $10,000 INVESTMENT

  [The following table is represented by a line graph in the printed material.]

                 All America Fund              S & P 500 Index
                 ----------------              ---------------
05/96                 10,000                       10,000
12/96                 11,043                       11,515
12/97                 13,909                       15,356
12/98                 16,835                       19,744
12/99                 21,218                       23,898

                                All America Fund
                                ----------------
                                                           Total Return
                                                    ----------------------------
Period                         Growth
Ended                            of                 Cumu-                Annual
12/31/99                      $10,000               lative               Average
--------------------------------------------------------------------------------
1 Year                         12,603               26.0%                 26.0%
Since 5/1/96
 (Inception)*                 $21,218              112.2%                 22.8%


                                  S&P 500 Index
                                  -------------
                                                             Total Return
                                                     ---------------------------
Period                         Growth
Ended                            of                  Cumu-                Annual
12/31/99                      $10,000                lative              Average
--------------------------------------------------------------------------------
1 Year                         12,104                 21.0%               21.0%
Since 5/1/96
 (Inception)                  $23,898                139.0%               26.8%

The line  representing  the performance  return of the All America Fund includes
expenses,  such as transaction costs,  management fees and expenses, that reduce
returns, while the performance return line of the index does not.


                                       31
<PAGE>

                               MONEY MARKET FUND

      The Money Market Fund's  investment  objective is the  realization of high
current  income to the extent  consistent  with the  maintenance  of  liquidity,
investment  quality and stability of capital.  Through investing in high quality
commercial  paper and other short-term  instruments,  the Fund returned 4.9% for
1999.  Short-term rates rose substantially during the year, allowing the Fund to
achieve a higher  current  return in December  than was  available  from similar
maturities the previous  January.  The seven-day  effective yield as of February
15,  2000 is  5.6%.  As with  all  performance  reportings,  this  yield  is not
necessarily indicative of future annual yields.

                                    BOND FUND

      The  Bond  Fund  seeks  a  high  level  of  return   consistent  with  the
preservation of capital through  investments in publicly traded debt securities.
The Fund primarily invests in corporate and U.S.  Government agency  securities,
which yield more than U.S.  Treasury issues.  The Fund's  benchmark,  the Lehman
Bros.  Government/Corporate  Bond Index, had a rare negative return for 1999, as
did the Bond Fund.  Fears of  inflation,  fed by a strong  domestic  economy,  a
booming  stock  market,  and higher oil  prices,  depressed  bond  returns.  The
inability of coupon  income to keep pace with interest  rate  increases  further
damaged prospects for bond returns.  The Fund's overemphasis on corporate bonds,
relative  to its  benchmark  index,  caused it to  slightly  underperform  since
Government securities did better than the corporates held by the Fund.

 [The following table is represented by a line graph in the printed material.]

                         GROWTH OF A $10,000 INVESTMENT

           Bond Fund            Lehman Brothers Gov't/Corp Bond Index
           ---------            -------------------------------------
05/96       10,000                             10,000
12/96       10,501                             10,610
12/97       11,435                             11,646
12/98       12,379                             12,748
12/99       11,948                             12,474


                                    Bond Fund
                                    ---------

                                                              Total Return
                                                        ------------------------
Period                         Growth
Ended                            of                      Cumu-            Annual
12/31/99                      $10,000                    lative          Average
--------------------------------------------------------------------------------
1 Year                        $ 9,652                    -3.5%            -3.5%
Since 5/1/96
 (Inception)*                 $11,948                    19.5%             5.0%

                     Lehman Brothers Gov't./Corp. Bond Index
                   ------------------------------------------

                                                               Total Return
                                                         -----------------------
Period                         Growth
Ended                            of                       Cumu-           Annual
12/31/99                      $10,000                     lative         Average
--------------------------------------------------------------------------------
1 Year                        $ 9,785                      -2.2%          -2.2%
Since 5/1/96
 (Inception)                  $12,474                      24.7%           6.2%

The line representing the performance return of the Bond Fund includes expenses,
such as transaction  costs,  management fees and expenses,  that reduce returns,
while the performance return line of the index does not.


                                       32
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
                     PORTFOLIO OF INVESTMENTS IN SECURITIES
                                December 31, 1999

                                                            Shares        Value
                                                           -------      --------
INDEXED ASSETS:
COMMON STOCKS
  3Com Corp. .......................................        1,146       $ 53,862
  Abbott Laboratories ..............................        5,112        185,630
  Adaptec, Inc. ....................................          347         17,307
  ADC Telecommunications, Inc. .....................          502         36,426
  Adobe Systems, Inc. ..............................          410         27,573
  Advanced Micro Devices, Inc. .....................          495         14,324
  AES Corp. ........................................          692         51,727
  Aetna, Inc. ......................................          503         28,074
  Aflac, Inc. ......................................          893         42,138
  Air Products & Chemicals, Inc. ...................          771         25,877
  Alberto-Culver Co. Cl B ..........................           78          4,595
  Albertson's, Inc. ................................        1,413         45,569
  Alcan Aluminum Ltd. ..............................          728         29,985
  ALCOA, Inc. ......................................        1,232        102,256
  Allegheny Technologies, Inc. .....................          320          7,180
  Allergan, Inc. ...................................          426         21,194
  Allied Waste Industries, Inc. ....................          633          5,578
  Allstate Corp. ...................................        2,683         64,392
  Alltel Corp. .....................................        1,026         84,837
  Alza Corp. .......................................          341         11,807
  Amerada Hess Corp. ...............................          304         17,252
  Ameren Corp. .....................................          461         15,098
  America Online, Inc. .............................        7,447        561,783
  American Electric Power, Inc. ....................          650         20,881
  American Express Co. .............................        1,510        251,038
  American General Corp. ...........................          837         63,507
  American Greetings Corp. Cl A ....................          217          5,127
  American Home Products Corp. .....................        4,337        171,040
  American Int'l. Group, Inc. ......................        5,142        555,979
  Amgen, Inc. ......................................        3,393        203,792
  AMR Corp. ........................................          506         33,902
  Amsouth Bancorporation ...........................        1,322         25,531
  Anadarko Petroleum Corp. .........................          428         14,606
  Analog Devices, Inc. .............................          581         54,033
  Andrew Corp. .....................................          276          5,227
  Anheuser-Busch Cos., Inc. ........................        1,571        111,345
  Aon Corp. ........................................          861         34,440
  Apache Corp. .....................................          383         14,147
  Apple Computer, Inc. .............................          541         55,622
  Applied Materials, Inc. ..........................        1,262        159,880
  Archer-Daniels-Midland Co. .......................        2,021         24,631
  Armstrong World Inds., Inc. ......................          129          4,305
  Ashland, Inc. ....................................          243          8,004
  Associates First Capital Corp. Cl A ..............        2,447         67,140
  AT&T Corp. .......................................       10,613        538,610
  Atlantic Richfield Co. ...........................        1,083         93,680
  Autodesk, Inc. ...................................          191          6,446
  Automatic Data Processing, Inc. ..................        2,079        112,006
  AutoZone, Inc. ...................................          500         16,156
  Avery Dennison Corp. .............................          382         27,838
  Avon Products, Inc. ..............................          805         26,565
  Baker Hughes, Inc. ...............................        1,105         23,274
  Ball Corp. .......................................          100          3,938
  Bank of America Corp. ............................        5,670        284,563
  Bank of New York Co., Inc. .......................        2,471         98,840
  Bank One Corp. ...................................        3,809        122,126
  Bard (C.R.), Inc. ................................          165          8,745
  Barrick Gold Corp. ...............................        1,310         23,171
  Bausch & Lomb, Inc. ..............................          193         13,208
  Baxter International, Inc. .......................          978         61,431
  BB & T Corp. .....................................        1,074         29,401
  Bear Stearns Cos., Inc. ..........................          411         17,570
  Becton Dickinson & Co. ...........................          841         22,497
  Bed Bath & Beyond, Inc. ..........................          469         16,298
  Bell Atlantic Corp. ..............................        5,158        317,539
  BellSouth Corp. ..............................            6,252        292,672
  Bemis, Inc. ..................................              169          5,894
  Best Buy, Inc. ...............................              685         34,378
  Bestfoods ....................................              937         49,251
  Bethlehem Steel Corp. ........................              440          3,685
  Biomet, Inc. .................................              378         15,120
  Black & Decker Corp. .........................              284         14,839
  Block (H. & R.), Inc. ........................              328         14,350
  BMC Software, Inc. ...........................              804         64,270
  Boeing Co. ...................................            3,104        129,010
  Boise Cascade Corp. ..........................              192          7,776
  Boston Scientific Corp. ......................            1,390         30,406
  Briggs & Stratton Corp. ......................               75          4,022
  Bristol-Myers Squibb Co. .....................            6,589        422,931
  Brown-Forman Corp. Cl B ......................              222         12,710
  Brunswick Corp. ..............................              310          6,898
  Burlington Northern Santa Fe Corp. ...........            1,518         36,812
  Burlington Resources, Inc. ...................              731         24,169
  Cabletron Systems, Inc. ......................              585         15,210
  Campbell Soup Co. ............................            1,421         54,975
  Capital One Financial Corp. ..................              664         31,997
  Cardinal Health, Inc. ........................              915         43,806
  Carnival Corp. ...............................            2,061         98,542
  Carolina Power & Light Co. ...................              536         16,315
  Caterpillar, Inc. ............................            1,195         56,240
  CBS Corp. ....................................            2,532        161,890
  Cendant Corp. ................................            2,362         62,741
  Centex Corp. .................................              192          4,740
  Central & South West Corp. ...................              715         14,300
  CenturyTel, Inc. .............................              469         22,219
  Ceridian Corp. ...............................              486         10,479
  Champion International Corp. .................              323         20,006
  Charles Schwab Corp. .........................            2,748        105,455
  Chase Manhattan Corp. ........................            2,739        212,786
  Chevron Corp. ................................            2,204        190,922
  Chubb Corp. ..................................              592         33,337
  CIGNA Corp. ..................................              625         50,352
  Cincinnati Financial Corp. ...................              555         17,309
  CINergy Corp. ................................              534         12,883
  Circuit City Group, Inc. .....................              675         30,417
  Cisco Systems, Inc. ..........................           10,865      1,163,913
  Citigroup, Inc. ..............................           11,199        622,244
  Citrix Systems, Inc. .........................              295         36,285
  Clear Channel Communications, Inc. ...........            1,134        101,210
  Clorox Co. ...................................               93         39,947
  CMS Energy Corp. .............................              397         12,381
  Coastal Corp. ................................              717         25,409
  Coca-Cola Co. ................................            8,204        477,883
  Coca-Cola Enterprises, Inc. ..................             ,428         28,739
  Colgate-Palmolive Co. ........................            1,959        127,335
  Columbia Energy Group ........................              270         17,078
  Columbia/HCA Healthcare Corp. ................            1,896         55,576
  Comcast Corp. Cl A ...........................            2,518        127,316
  Comerica, Inc. ...............................              525         24,511
  Compaq Computer Corp. ........................            5,646        152,795
  Computer Associates Intl., Inc ...............            1,806        126,307
  Computer Sciences Corp. ......................              538         50,908
  Compuware Corp. ..............................            1,200         44,700
  Comverse Technology Inc. .....................              235         34,016
  Conagra, Inc. ................................            1,640         37,003
  Conoco, Inc. .................................            2,107         52,412
  Conseco, Inc. ................................            1,099         19,645
  Consolidated Edison, Inc. ....................              743         25,634
  Consolidated Natural Gas Co. .................              322         20,910
  Consolidated Stores Corp. ....................              370          6,013

    The accompanying notes are an integral part of these financial statments.


                                       33
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                                December 31, 1999

                                                           Shares       Value
                                                           ------     ---------
INDEXED ASSETS (CONTINUED):
COMMON STOCKS (CONTINUED)
  Constellation Energy Group, Inc. .................        503       $ 14,587
  Cooper Industries, Inc. ..........................        317         12,819
  Cooper Tire & Rubber Co. .........................        255          3,968
  Coors (Adolph) Co. Cl B ..........................        118          6,195
  Corning, Inc. ....................................        822        105,987
  Costco Wholesale Corp. ...........................        742         67,708
  Countrywide Credit Industries, Inc. ..............        379          9,570
  Crane Co. ........................................        222          4,412
  Crown Cork & Seal, Inc. ..........................        411          9,196
  CSX Corp. ........................................        731         22,935
  Cummins Engine Co., Inc. .........................        135          6,522
  CVS Corp. ........................................      1,316         52,558
  Dana Corp. .......................................        557         16,675
  Danaher Corp. ....................................        478         23,064
  Darden Restaurants, Inc. .........................        444          8,048
  Dayton-Hudson Corp. ..............................      1,486        109,128
  Deere & Co. ......................................        785         34,049
  Dell Computer Corp. ..............................      8,439        430,389
  Delphi Automotive Systems Corp ...................      1,899         29,909
  Delta Air Lines, Inc. ............................        441         21,967
  Deluxe Corp. .....................................        251          6,887
  Dillard's Inc. Cl A ..............................        359          7,247
  Disney (Walt) Co. ................................      6,850        200,363
  Dollar General Corp. .............................        883         20,088
  Dominion Resources, Inc. .........................        645         25,316
  Donnelley (R.R.) & Sons Co. ......................        429         10,645
  Dover Corp. ......................................        700         31,763
  Dow Chemical Co. .................................        739         98,749
  Dow Jones & Co., Inc. ............................        305         20,740
  DTE Energy Co. ...................................        487         15,280
  Du Pont (E.I.) de Nemours & Co ...................      3,469        228,536
  Duke Energy Corp. ................................      1,226         61,453
  Dun & Bradstreet Corp. ...........................        541         15,960
  Eastern Enterprises ..............................         85          4,882
  Eastman Chemical Co. .............................        256         12,208
  Eastman Kodak Co. ................................      1,063         70,424
  Eaton Corp. ......................................        243         17,648
  Ecolab, Inc. .....................................        435         17,019
  Edison International .............................      1,167         30,561
  El Paso Energy Corp. .............................        766         29,730
  Electronic Data Systems Corp. ....................      1,564        104,690
  EMC Corp. ........................................      3,405        371,996
  Emerson Electric Co. .............................      1,460         83,768
  Engelhard Corp. ..................................        423          7,984
  Enron Corp. ......................................      2,399        106,456
  Entergy Corp. ....................................        829         21,347
  Equifax, Inc. ....................................        483         11,381
  Exxon Mobil Corp. ................................     11,471        924,133
  Fannie Mae .......................................      3,405        212,600
  FDX Corp. ........................................        999         40,897
  Federated Department Stores, Inc. ................        701         35,444
  Federal Home Loan Mortgage Corp. .................      2,336        109,938
  Fifth Third Bancorp ..............................      1,014         74,402
  First Data Corp. .................................      1,392         68,643
  First Union Corp. ................................      3,281        107,658
  Firstar Corp. ....................................      3,256         68,783
  FirstEnergy Corp. ................................        786         17,832
  FleetBoston Financial Corp. ......................      3,041        105,865
  Fleetwood Enterprises, Inc. ......................        112          2,310
  Florida Progress Corp. ...........................        330         13,963
  Fluor Corp. ......................................        255         11,698
  FMC Corp. ........................................        102          5,846
  Ford Motor Co. ...................................      4,012        214,391
  Fort James Corp. .................................        743         20,340
  Fortune Brands, Inc. .............................        559         18,482
  Foster Wheeler Corp. .............................        132          1,172
  FPL Group, Inc. ..................................        602         25,773
  Franklin Resources, Inc. .........................        847         27,157
  Freeport-McMoran Copper & Gold,
  Inc. Cl B ........................................        549         11,598
  Gannett Co., Inc. ................................        940         76,669
  Gap, Inc. ........................................      2,844        130,824
  Gateway, Inc. ....................................      1,052         75,810
  General Dynamics Corp. ...........................        669         35,290
  General Electric Co. .............................     10,898      1,686,466
  General Instrument Corp. .........................        583         49,555
  General Mills, Inc. ..............................      1,027         36,715
  General Motors Corp. .............................      2,126        154,534
  Genuine Parts Co. ................................        602         14,937
  Georgia-Pacific Group ............................        576         29,232
  Gillette Co. .....................................      3,563        146,751
  Global Crossing Ltd. .............................      2,521        126,050
  Golden West Financial Corp. ......................        552         18,492
  Goodrich (B.F.) Co. ..............................        369         10,148
  Goodyear Tire & Rubber Co. .......................        525         14,798
  GPU, Inc. ........................................        422         12,634
  Grainger (W.W.), Inc. ............................        314         15,013
  Great Atlantic & Pacific Tea, Inc ................        124          3,457
  Great Lakes Chemical Corp. .......................        191          7,294
  GTE Corp. ........................................      3,228        227,776
  Guidant Corp. ....................................      1,015         47,705
  Halliburton Holdings Co. .........................      1,483         59,691
  Harcourt General, Inc. ...........................        230          9,258
  Harrah's Entertainment, Inc. .....................        431         11,395
  Hartford Financial Svs Gp, Inc ...................        759         35,958
  Hasbro, Inc. .....................................        654         12,467
  HealthSouth Corp. ................................      1,283          6,896
  Heinz (H.J.) Co. .................................      1,204         47,934
  Helmerich & Payne, Inc. ..........................        163          3,555
  Hercules, Inc. ...................................        356          9,924
  Hershey Food Corp. ...............................        469         22,278
  Hewlett-Packard Co. ..............................      3,404        387,843
  Hilton Hotels Corp. ..............................      1,239         11,925
  Home Depot, Inc. .................................      7,647        524,297
  Homestake Mining Co. .............................        874          6,828
  Honeywell International, Inc. ....................      2,652        152,988
  Household International Corp. ....................      1,562         58,185
  Humana, Inc. .....................................        563          4,610
  Huntington Bancshares, Inc. ......................        774         18,479
  Ikon Office Solutions, Inc. ......................        501          3,413
  Illinois Tool Works, Inc. ........................      1,008         68,103
  IMS Health, Inc. .................................      1,051         28,574
  Inco Ltd. ........................................        645         15,158
  Ingersoll Rand Co. ...............................        555         30,560
  Intel Corp. ......................................     11,115        914,903
  Intl. Business Machines Corp. ....................      5,987        646,596
  Intl. Flavors & Fragrances, Inc. .................        357         13,477
  International Paper Co. ..........................      1,390         78,448
  Interpublic Group of Cos., Inc. ..................        948         54,688
  ITT Industries, Inc. .............................        295          9,864
  Jefferson-Pilot Corp. ............................        354         24,161
  Johnson & Johnson ................................      4,619        430,144
  Johnson Controls, Inc. ...........................        287         16,323
  Jostens, Inc. ....................................        111          2,699
  Kansas City Southern Inds., Inc. .................        371         27,686
  Kaufman & Broad Home Corp. .......................        154          3,725
  Kellogg Co. ......................................      1,362         41,967
  Kerr-McGee Corp. .................................        290         17,980

    The accompanying notes are an integral part of these financial statments.


                                       34
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                                December 31, 1999

                                                          Shares        Value
                                                          ------     ----------
INDEXED ASSETS (CONTINUED):
COMMON STOCKS (CONTINUED
  KeyCorp ......................................          1,508      $   33,365
  Kimberly Clark Corp. .........................          1,790         116,798
  KLA-Tencor Corp. .............................            296          32,967
  Kmart Corp. ..................................          1,659          16,694
  Knight-Ridder, Inc. ..........................            272          16,184
  Kohl's Corp. .................................            547          39,487
  Kroger Co. ...................................          2,787          52,605
  Legget & Platt, Inc. .........................            661          14,170
  Lehman Brothers Holdings, Inc. ...............            403          34,129
  Lexmark Intl. Group Inc. Cl A ................            433          39,187
  Lilly (Eli) & Co. ............................          3,622         240,863
  Limited, Inc. ................................            719          31,142
  Lincoln National Corp. .......................            668          26,720
  Liz Claiborne, Inc. ..........................            203           7,638
  Lockheed Martin Corp. ........................          1,328          29,050
  Loews Corp. ..................................            361          21,908
  Longs Drug Stores Corp. ......................            126           3,252
  Louisiana-Pacific Corp. ......................            361           5,144
  Lowe's Companies, Inc. .......................          1,282          76,600
  LSI Logic Corp. ..............................            495          33,413
  Lucent Technologies, Inc. ....................         10,406         778,499
  Mallinckrodt, Inc. ...........................            231           7,349
  Manor Care, Inc. .............................            360           5,760
  Marriott International, Inc Cl A .............            836          26,386
  Marsh & McLennan Co., Inc. ...................            887          84,875
  Masco Corp. ..................................          1,488          37,758
  Mattel, Inc. .................................          1,412          18,533
  May Department Stores Co. ....................          1,123          36,217
  Maytag Corp. .................................            284          13,632
  MBIA, Inc. ...................................            336          17,745
  MBNA Corp. ...................................          2,663          72,567
  McDermott International, Inc. ................            191           1,731
  McDonald's Corp. .............................          4,497         181,285
  McGraw-Hill Cos., Inc. .......................            661          40,734
  MCI WorldCom, Inc. ...........................          9,441         500,963
  McKesson HBOC, Inc. ..........................            945          21,322
  Mead Corp. ...................................            344          14,943
  MediaOne Group, Inc. .........................          2,038         156,544
  Medtronic, Inc. ..............................          3,943         143,673
  Mellon Financial Corp. .......................          1,689          57,532
  Merck & Co., Inc. ............................          7,764         520,673
  Meredith Corp. ...............................            169           7,045
  Merrill Lynch & Co., Inc. ....................          1,242         103,707
  MGIC Investment Corp. ........................            367          22,089
  Micron Technology, Inc. ......................            896          69,664
  Microsoft Corp. ..............................         17,150       2,002,225
  Milacron, Inc. ...............................            119           1,830
  Millipore Corp. ..............................            142           5,485
  Minnesota Mining & Mfg. Co. ..................          1,353         132,425
  Mirage Resorts, Inc. .........................            668          10,229
  Molex, Inc. ..................................            521          29,534
  Monsanto Co. .................................          2,129          75,846
  Morgan (J.P.) & Co., Inc. ....................            590          74,709
  Morgan Stanley Dean Witter & Co. .............          1,850         264,088
  Motorola, Inc. ...............................          2,040         300,390
  Nabisco Group Holdings Corp. .................          1,096          11,645
  NACCO Industries, Inc. Cl A ..................             26           1,445
  National City Corp. ..........................          2,077          49,199
  National Semiconductor Corp. .................            564          24,146
  National Service Industries ..................            134           3,953
  Navistar International Corp. .................            217          10,280
  Network Appliance, Inc. ......................            494          41,033
  New Century Energies, Inc. ...................            387          11,755
  New York Times Co. Cl A ......................            585          28,738
  Newell Rubbermaid, Inc. ......................            947          27,463
  Newmont Mining Corp. .........................            563          13,794
  Nextel Communications, Inc. Cl A .............          1,215         125,297
  Niagara Mohawk Holdings, Inc. ................            630           8,781
  Nicor, Inc. ..................................            154           5,005
  Nike, Inc. Cl B ..............................            945          46,837
  Nordstrom, Inc. ..............................            471          12,334
  Norfolk Southern Corp. .......................          1,278          26,199
  Nortel Networks Corp .........................          4,460         450,460
  Northern States Power Co. ....................            518          10,101
  Northern Trust Corp. .........................            750          39,750
  Northrop Grumman Corp. .......................            233          12,597
  Novell, Inc. .................................          1,126          44,970
  Nucor Corp. ..................................            293          16,060
  Occidental Petroleum Corp. ...................          1,221          26,404
  Office Depot, Inc. ...........................          1,093          11,955
  Old Kent Financial Corp. .....................            399          14,115
  Omnicom Group, Inc. ..........................            596          59,600
  Oneok, Inc. ..................................            102           2,563
  Oracle Corp. .................................          4,729         529,944
  Owens Corning ................................            175           3,380
  Owens-Illinois, Inc. .........................            524          13,133
  Paccar, Inc. .................................            263          11,654
  Pactiv Corp. .................................            573           6,088
  Paine Webber Group, Inc. .....................            489          18,979
  Pall Corp. ...................................            417           8,992
  Parametric Technology Corp. ..................            905          24,492
  Parker Hannifin Corp. ........................            365          18,729
  Paychex, Inc. ................................            826          33,040
  PE Corp-PE Biosystems Group ..................            343          41,267
  Peco Energy Co. ..............................            627          21,788
  Penney (J.C.) Co., Inc. ......................            886          17,665
  Peoples Energy Corp. .........................            114           3,819
  Peoplesoft, Inc. .............................            817          17,412
  Pep Boys-Manny, Moe & Jack ...................            170           1,551
  PepsiCo, Inc. ................................          4,835         170,434
  Perkin Elmer, Inc. ...........................            145           6,045
  Pfizer, Inc. .................................         12,858         417,081
  PG & E Corp. .................................          1,290          26,445
  Pharmacia & Upjohn, Inc. .....................          1,703          76,635
  Phelps Dodge Corp. ...........................            297          19,958
  Phillip Morris Cos., Inc. ....................          7,859         182,231
  Phillips Petroleum Co. .......................            851          39,997
  Pinnacle West Capital Corp. ..................            285           8,710
  Pitney Bowes, Inc. ...........................            899          43,433
  Placer Dome, Inc. ............................          1,094          11,761
  PNC Bank Corp. ...............................            977          43,477
  Polaroid Corp. ...............................            142           2,671
  Potlatch Corp. ...............................             94           4,195
  PP&L Resources, Inc. .........................            477          10,911
  PPG Industries, Inc. .........................            583          36,474
  Praxair, Inc. ................................            536          26,968
  Price (T. Rowe) Associates ...................            408          15,071
  Proctor & Gamble Co. .........................          4,365         478,240
  Progressive Corp. of Ohio ....................            245          17,916
  Providian Financial Corp. ....................            476          43,346
  Public Svc. Enterprise Group, Inc. ...........             37          25,657
  Pulte Corp. ..................................            140           3,150
  Quaker Oats Co. ..............................            450          29,531
  Qualcomm, Inc. ...............................          2,156         379,995
  Quintiles Transnational Corp. ................            386           7,213
  Ralston Purina Co. ...........................          1,087          30,300
  Raytheon Co. Cl B ............................          1,135          30,148
  Reebok International Ltd. ....................            182           1,490

    The accompanying notes are an integral part of these financial statments.


                                       35
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                                December 31, 1999

                                                          Shares         Value
                                                          ------       ---------
INDEXED ASSETS (CONTINUED):
COMMON STOCKS (CONTINUED
  Regions Financial Corp. ......................            752         $ 18,894
  Reliant Energy, Inc. .........................            994           22,738
  Republic New York Corp. ......................            352           25,344
  Reynolds Metals Co. ..........................            208           15,938
  Rite-Aid Corp. ...............................            870            9,733
  Rockwell Intl., Corp. ........................            643           30,784
  Rohm & Haas Co. ..............................            732           29,783
  Rowan Cos., Inc. .............................            271            5,877
  Royal Dutch Petroleum Co. N.Y ................          7,122          430,436
  Russell Corp. ................................            110            1,843
  Ryder System, Inc. ...........................            216            5,279
  Safeco Corp. .................................            442           10,995
  Safeway, Inc. ................................          1,715           60,990
  Sara Lee Corp. ...............................          3,036           66,982
  SBC Communications, Inc. .....................         11,331          552,386
  Schering-Plough Corp. ........................          4,879          205,833
  Schlumberger, Ltd. ...........................          1,840          103,500
  Scientific-Atlanta, Inc. .....................            257           14,296
  Scottish Power plc - ADR .....................              *               11
  Seagate Technology ...........................            700           32,594
  Seagram Ltd. .................................          1,453           65,294
  Sealed Air Corp. New .........................            281           14,559
  Sears Roebuck & Co. ..........................          1,278           38,899
  Sempra Energy ................................            808           14,039
  Service Corp. International ..................            914            6,341
  Shared Medical Systems Corp. .................             86            4,381
  Sherwin-Williams Co. .........................            569           11,949
  Sigma-Aldrich Corp. ..........................            339           10,191
  Silicon Graphics, Inc. .......................            634            6,221
  SLM Holding Corp. ............................            541           22,857
  Snap-On, Inc. ................................            211            5,605
  Solectron Corp. ..............................            984           93,603
  Southern Co. .................................          2,236           52,546
  Southtrust Corp ..............................            563           21,288
  Southwest Airlines Co. .......................          1,694           27,422
  Springs Industries, Inc. .....................             58            2,316
  Sprint Corp. (FON Group) .....................          2,915          196,216
  Sprint Corp. (PCS Group) .....................          1,431          146,678
  St. Jude Medical, Inc. .......................            284            8,715
  St. Paul Companies, Inc. .....................            762           25,670
  Stanley Works ................................            299            9,007
  Staples, Inc. ................................          1,562           32,412
  State Street Corp. ...........................            542           39,600
  Summit Bancorp ...............................            595           18,222
  Sun Microsystems, Inc. .......................          5,200          402,675
  Sunoco, Inc. .................................            304            7,144
  Suntrust Banks, Inc. .........................          1,081           74,386
  Supervalu, Inc. ..............................            467            9,340
  Synovus Financial Corp. ......................            912           18,126
  Sysco Corp. ..................................          1,112           43,994
  Tandy Corp. ..................................            649           31,923
  Tektronix, Inc. ..............................            153            5,948
  Tellabs, Inc. ................................          1,316           84,471
  Temple-Inland, Inc. ..........................            180           11,869
  Tenet Healthcare Corp. .......................          1,043           24,511
  Teradyne, Inc. ...............................            575           37,950
  Texaco, Inc. .................................          1,857          100,858
  Texas Instruments, Inc. ......................          2,640          255,750
  Texas Utilities Co. ..........................            929           33,038
  Textron, Inc. ................................            505           38,727
  Thermo Electron Corp. ........................            531            7,965
  Thomas & Betts Corp. .........................            183            5,833
  Time Warner, Inc. ............................          4,273          309,525
  Times Mirror Co. .............................            201           13,467
  Timken Co. ...................................            201            4,108
  TJX Companies ................................          1,030           21,051
  Torchmark Corp. ..............................            447           12,991
  Tosco Corp. ..................................            478           12,996
  Toys R Us, Inc. ..............................            832           11,908
  Transocean Sedco Forex, Inc. .................            356           12,000
  Tribune Co. ..................................            796           43,830
  Tricon Global Restaurants Inc. ...............            516           19,931
  TRW, Inc. ....................................            407           21,139
  Tupperware Corp. .............................            186            3,150
  Tyco International Ltd. ......................          5,623          218,594
  U.S. Bancorp .................................          2,417           57,555
  U.S. West, Inc. ..............................          1,696          122,112
  Unicom Corp. .................................            730           24,455
  Unilever N.V .................................          1,921          104,574
  Union Carbide Corp. ..........................            448           29,904
  Union Pacific Corp. ..........................            833           36,340
  Union Pacific Resources Group, Inc. ..........            846           10,787
  Union Planters Corp. .........................            480           18,930
  Unisys Corp. .................................          1,028           32,832
  United Healthcare Corp. ......................            582           30,919
  United Technologies Corp. ....................          1,618          105,170
  Unocal Corp. .................................            814           27,320
  UNUMProvident Corp. ..........................            802           25,714
  US Airways Group Inc. ........................            237            7,599
  UST, Inc. ....................................            585           14,735
  USX-Marathon Group ...........................          1,037           25,601
  USX-U.S. Steel Group .........................            297            9,801
  V F Corp. ....................................            399           11,970
  Viacom, Inc. Cl B ............................          2,341          141,484
  Vulcan Materials Co. .........................            336           13,419
  W.R. Grace & Co. .............................            239            3,316
  Wachovia Corp. ...............................            680           46,240
  Wal-Mart Stores, Inc. ........................         14,781        1,021,737
  Walgreen Co. .................................          3,333           97,490
  Warner-Lambert Co. ...........................          2,872          235,325
  Washington Mutual, Inc. ......................          1,946           50,596
  Waste Management, Inc. .......................          2,081           35,767
  Watson Pharmaceuticals, Inc. .................            322           11,532
  Wellpoint Health Networks Inc. Cl A ..........            217           14,308
  Wells Fargo & Company ........................          5,455          220,587
  Wendy's International, Inc. ..................            408            8,415
  Westvaco Corp. ...............................            337           10,995
  Weyerhaeuser Co. .............................            792           56,875
  Whirlpool Corp. ..............................            246           16,005
  Willamette Industries, Inc. ..................            375           17,414
  Williams Cos., Inc. ..........................          1,459           44,591
  Winn-Dixie Stores, Inc. ......................            499           11,945
  Worthington Industries, Inc. .................            309            5,118
  Wrigley (Wm.) Jr. Co. ........................            391           32,429
  Xerox Corp. ..................................          2,228           50,548
  Xilinx, Inc. .................................          1,062           48,288
  Yahoo!, Inc. .................................            874          378,169
                                                                     -----------
TOTAL INDEXED ASSETS--COMMON STOCKS
(Cost: $21,123,075) 56.7% ......................                     $41,037,263
                                                                     -----------
----------
* Fractional share attributable to Corporate Action.

    The accompanying notes are an integral part of these financial statments.


                                       36
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                                December 31, 1999

                                                           Face
                                   Rate      Maturity     Amount         Value
                                  ------    ---------   ---------      ---------
INDEXED ASSETS (CONTINUED):
SHORT-TERM DEBT SECURITIES:
U.S. GOVERNMENT (0.3%)
 U.S. Treasury Bill (a) .......... 5.18%    01/20/00    $ 200,000    $   199,450
                                                                     -----------
AGENCY (0.8%)
  Federal Home Loan Bank ......... 4.75     01/12/00      613,000        612,110
                                                                     -----------
COMMERCIAL PAPER (0.9%)
  UBS Finance (Delw.) Inc. ....... 4.00     01/03/00      642,000        641,857
                                                                     -----------
TOTAL SHORT-TERM DEBT
  Securities
  (Cost: $1,453,417) 2.0% ......................................       1,453,417
                                                                     -----------
TOTAL INDEXED ASSETS
  (Cost: $22,576,492) 58.7% ....................................     $42,490,680
                                                                     -----------

----------
FUTURES CONTRACTS OUTSTANDING AS OF DECEMBER 31, 1999:

                                    Expiration     Underlying Face   Unrealized
                                       Date        Amount at Value     Gain
                                   -------------   ---------------   ----------
PURCHASED

  3 S&P 500 Stock Index
    Futures Contracts               March 2000       $1,113,150       $40,088
                                                    ===========       =======

      The face value of futures purchased and outstanding as percentage of total
investment in securities:  1.5%.

----------
(a) This security has been  segregated to cover initial margin  requirements  on
open futures contracts.

    The accompanying notes are an integral part of these financial statments.


                                       37
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                                December 31, 1999

                                                          Shares         Value
                                                         -------      ----------
ACTIVE ASSETS:
COMMON STOCKS
BASIC MATERIALS
  Cabot Corp. ..................................          4,000       $   81,500
  Lone Star Technologies, Inc.* ................          6,600          183,975
  Newmont Mining Corp. .........................          3,100           75,950
  Placer Dome, Inc. ............................          5,600           60,200
  Praxair, Inc .................................          4,100          206,281
                                                                      ----------
                                                                         607,906
                                                                      ----------
CONSUMER, CYCLICAL (4.6%)
  eBay, Inc.* ..................................          1,000          125,188
  Abercrombie & Fitch Co. Cl A* ................          2,800           74,725
  Bed Bath & Beyond, Inc.* .....................          5,200          180,700
  BJ Services Co.* .............................          1,800           75,263
  BJ's Wholesale Club, Inc.* ...................          7,400          270,100
  CNET, Inc.* ..................................          2,200          124,850
  Cox Radio, Inc.* .............................          1,300          129,675
  Dayton-Hudson Corp. ..........................          2,400          176,250
  Diedrich Coffee, Inc.* .......................         17,000           69,063
  Ethan Allen Interiors, Inc. ..................          3,550          113,822
  Ford Motor Co. ...............................          1,400           74,813
  Furniture Brands Intl., Inc.* ................            800           17,600
  Gannett Co., Inc. ............................          2,100          171,281
  Linens'n Things, Inc.* .......................          4,200          124,425
  Mandalay Resort Group* .......................          7,300          146,913
  Masco Corp. ..................................          6,700          170,013
  Meredith Corp. ...............................          2,300           95,881
  Nordstrom, Inc. ..............................          3,900          102,131
  Outback Steakhouse, Inc.* ....................          4,450          115,422
  Skywest, Inc. ................................          1,300           36,400
  Telewest Communications plc ADR* .............          3,163          174,756
  The Cheesecake Factory, Inc.* ................          2,700           94,500
  The Men's Wearhouse, Inc.* ...................          2,600           76,375
  Tiffany & Co. ................................          2,850          254,363
  TJX Companies ................................          4,100           83,794
  Young & Rubicam, Inc. ........................          3,500          247,625
                                                                      ----------
                                                                       3,325,928
                                                                      ----------
CONSUMER, NON-CYCLICAL (2.7%)
  Albertson's, Inc. ............................          3,900          125,775
  American Home Products Corp. .................          1,400           55,213
  Baxter International, Inc. ...................          1,700          106,781
  Bestfoods ....................................          2,100          110,381
  Cardinal Health, Inc. ........................          2,100          100,538
  Cygnus, Inc.* ................................          4,000           73,000
  Diageo plc-- Sponsored ADR ...................          2,000           64,000
  Dura Pharmaceuticals, Inc.* ..................          5,500           76,656
  Enzon, Inc.* .................................          2,100           91,088
  Forest Laboratories, Inc.* ...................          3,500          215,031
  Fort James Corp. .............................          4,300          117,713
  IDEC Pharmaceuticals Corp.* ..................            400           39,300
  Lilly (Eli) & Co. ............................          1,500           99,750
  Medimmune, Inc.* .............................          1,100          182,463
  Medquist, Inc.* ..............................          1,200           30,975
  Minimed, Inc.* ...............................          2,400          175,800
  SangStat Medical Corp.* ......................          2,900           86,275
  Sepracor, Inc.* ..............................            700           69,431
  US Foodservice* ..............................          4,400           73,700
  Williams-Sonoma, Inc.* .......................          1,200           55,200
                                                                      ----------
                                                                       1,949,070
                                                                      ----------
ENERGY (2.2%)
  BP Amoco Corp. ...............................          3,434          203,679
  Calpine Corp.* ...............................          4,050          259,200
  Exxon Mobil Corp. ............................          2,376          191,417
  Midcoast Energy Res., Inc. ...................          1,400           23,450
  Nabors Industries, Inc.* .....................          4,000          123,750
  Quanta Services, Inc.* .......................          3,200           90,400
  Schlumberger, Ltd. ...........................          3,000          168,750
  Total Fina S.A.-- ADR ........................          2,470          171,048
  USX-Marathon Group ...........................          7,200          177,750
  Varco International, Inc.* ...................          6,000           61,125
  Weatherford International, Inc.* .............          2,400           95,850
                                                                      ----------
                                                                       1,566,419
                                                                      ----------
FINANCIAL (4.7%)
  American General Corp. .......................          1,100           83,463
  American Int'l. Group, Inc. ..................          3,156          341,243
  Arden Realty Group ...........................          5,300          106,331
  Bank of America Corp. ........................          4,823          242,054
  Boston Properties, Inc. ......................          2,400           74,700
  Citigroup, Inc. ..............................         11,850          658,416
  Compass Bancshares Inc., .....................          2,700           60,244
  Cullen/Frost Bankers, Inc. ...................          2,600           66,950
  Equity Res. Pptys. Tr. Co. ...................          2,600          110,988
  Fannie Mae ...................................          2,100          131,119
  Fleet Boston Financial Corp. .................          3,600          125,325
  HCC Insurance Holdings, Inc. .................          5,100           67,256
  Heller Financial, Inc. .......................          5,200          104,325
  Kimco Realty Corp ............................          2,700           91,463
  Mack-Cali Realty Corp. .......................          3,700           96,431
  Morgan Stanley Dean Witter ...................          2,000          285,500
  Natl. Commerce Bancorp .......................          2,600           58,988
  Providian Financial Corp. ....................          1,600          145,700
  SL Green Realty Corp. ........................          6,100          132,675
  Spieker Pptys., Inc. .........................          3,200          116,600
  Vornado Rlty. Trust ..........................          3,200          104,000
  Washington Mutual, Inc. ......................          4,300          111,800
  Wells Fargo & Company ........................          2,800          113,225
                                                                      ----------
                                                                       3,428,796
                                                                      ----------
INDUSTRIAL (6.2%)
  Applied Materials, Inc.* .....................          5,900          747,456
  Asyst Technologies, Inc.* ....................          1,600          104,900
  BISYS Group, Inc.* ...........................          2,200          143,550
  Caterpillar, Inc. ............................          2,000           94,125
  Citadel Communications, Corp.* ...............          1,700          110,288
  Coinstar, Inc.* ..............................          3,400           47,600
  CommScope, Inc.* .............................          1,900           76,594
  Computer Sciences Corp.* .....................          1,700          160,863
  Conexant Systems, Inc.* ......................          3,400          225,675
  Covenant Transport, Inc. Cl A* ...............          4,600           79,925
  CSG Systems Intl., Inc.* .....................          1,900           75,763
  Dycom Industries, Inc.* ......................          2,200           96,938
  Emerson Electric Co. .........................          1,300           74,588
  EOG Resources, Inc. ..........................          2,800           49,175
  FactSet Research Systems, Inc. ...............          2,000          159,250
  Forward Air Corporation* .....................          5,100          221,213
  Honeywell International, Inc. ................          1,800          103,838
  Hooper Holmes, Inc. ..........................          8,150          209,863
  Kent Electronics Corp.* ......................          3,100           70,525
  Kulicke and Soffa Industries, Inc.* ..........          2,200           93,638
  Mettler-Toledo International, Inc.* ..........          2,200           84,013
  Official Payments Corp.* .....................          1,300           67,600
  Pittway Corp. ................................            700           31,369
  PRI Automation, Inc.* ........................          2,100          140,963
  Radio One, Inc.* .............................          1,300          119,600
  Salem Communications Corp. Cl A* .............          1,700           38,463
  SDL, Inc.* ...................................            800          174,400
  Semtech Corp.* ...............................          4,200          218,925
  Spartech Corp. ...............................          3,400          109,650
  Swift Transportation Co., Inc.* ..............          4,500           79,313
  Time Warner Telecom, Inc. Cl. A* .............          2,500          124,844
  Transocean Offshore, Inc. ....................            581           19,566
  True North Communications, Inc. ..............          1,900           84,906

    The accompanying notes are an integral part of these financial statments.


                                       38
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                                December 31, 1999

                                                          Shares          Value
                                                         -------       ---------
ACTIVE ASSETS (Continued)
  U.S. Xpress Enterprises, Inc. Cl A* ..........          4,600      $    33,925
  Varian Semiconductor Equipment
  Associates, Inc.* ............................          2,800           95,200
  Williams Cos., Inc. ..........................          4,800          146,700
                                                                     -----------
                                                                       4,515,204
                                                                     -----------
Technology (16.4%)
  3Com Corp* ...................................          6,200          291,400
  Altera Corp.* ................................          3,600          178,425
  ANTEC Corp.* .................................          2,700           98,550
  Applied Micro Circuits, Corp.* ...............          3,200          407,200
  ASM Lithography Holding NV* ..................          1,900          216,125
  AT&T Corp. ...................................          3,300          167,475
  Atmel Corp.* .................................         16,800          496,650
  ATMI, Inc.* ..................................          2,700           89,269
  Aware, Inc.* .................................          1,300           47,288
  Broadcom Corp.* ..............................            500          136,188
  Business Objects S.A.-- Sp ADR* ..............            800          106,900
  Ciena Corp.* .................................          4,400          253,000
  Cisco Systems, Inc.* .........................         24,800        2,656,700
  Compaq Computer Corp. ........................         13,700          370,756
  Critical Path, Inc.* .........................          2,000          188,750
  Dallas Semiconductor Corp. ...................          1,200           77,325
  Digital Island, Inc.* ........................          1,100          104,638
  Dionex Corp.* ................................          2,700          111,206
  Documentum, Inc.* ............................          1,000           59,875
  E-Speed, Inc., Cl A* .........................          3,000          106,688
  Efficient Networks, Inc.* ....................          1,700          115,600
  Emulex Corp.* ................................          1,500          168,750
  Exodus Communications, Inc.* .................          1,600          142,100
  Hewlett-Packard Co. ..........................          1,000          113,938
  Intel Corp. ..................................          9,000          740,813
  Intl. Business Machines Corp. ................          1,600          172,800
  Intuit, Inc.* ................................          6,900          413,569
  JDA Software Group, Inc.* ....................          6,800          111,350
  Lattice Semiconductor Corp. ..................          2,000           94,250
  Legato Systems, Inc.* ........................          3,600          247,725
  Linear Technology Corp. ......................          8,900          636,906
  Manugistics Group, Inc.* .....................          3,000           96,938
  Maxim Integrated Products, Inc.* .............         13,800          651,188
  Mcleod USA, Inc.* ............................          2,400          141,300
  Microchip Technology, Inc.* ..................          2,800          191,625
  Microsoft Corp.* .............................          1,700          198,453
  Networks Associates, Inc.* ...................          4,700          125,431
  Novellus Systems, Inc.* ......................          1,200          147,038
  Parametric Technology Corp.* .................          9,800          265,213
  Protein Design Labs, Inc.* ...................            900           63,000
  Sawtek, Inc.* ................................          1,600          106,500
  Vignette Corporation* ........................            600           97,800
  Vitesse Semiconductor Corp.* .................          1,600           83,900
  Waters Corp.* ................................          1,800           95,400
  Xerox Corp. ..................................          2,500           56,719
  Xilinx, Inc.* ................................          9,800          445,594
                                                                     -----------
                                                                      11,888,308
                                                                     -----------
Utilities (2.0%)
  El Paso Energy Corp. .........................          2,700          104,794
  GTE Corp. ....................................          2,200          155,238
  Illinova Corp. ...............................          3,200          111,200
  ITC DeltaCom, Inc.* ..........................          4,500          124,313
  Kinder Morgan, Inc. ..........................          4,800           96,900
  MCI WorldCom, Inc.* ..........................          2,700          143,269
  MDU Resources Group ..........................          3,900           78,000
  Montana Pwr. Co. .............................          3,100          111,794
  NSTAR ........................................          2,205           89,303
  SBC Communications, Inc. .....................          2,300          112,125
  SIGCORP, Inc. ................................          3,100           70,525
  Western Wireless Corp. Cl A* .................          2,700          180,225
                                                                     -----------
                                                                       1,377,686
                                                                     -----------
Total Active Assets - Common Stocks
(Cost: $19,036,464) 39.6% ......................                     $28,659,317
                                                                     -----------
-------------
*Non-income producing security.


    The accompanying notes are an integral part of these financial statments.


                                       39
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                                December 31, 1999

                                                            Face
                                       Rate    Maturity    Amount      Value
                                       ----    --------    ------      -----
ACTIVE ASSETS (Continued):
SHORT-TERM DEBT SECURITIES:
COMMERCIAL PAPER (1.7%)
  Abbott Laboratories ................ 6.25%   01/13/00   $998,000 $   995,917
  Countrywide Credit Industries Inc. . 5.25    01/07/00    200,000     199,825
                                                                   -----------
                                                                     1,195,742
                                                                   -----------
TOTAL ACTIVE ASSETS SHORT-TERM DEBT SECURITIES
  (Cost: $1,195,742) 1.7% ......................................     1,195,742
                                                                   -----------
TOTAL ACTIVE ASSETS
  (Cost: $20,232,206) 41.3% ....................................    29,855,059
                                                                   -----------
TOTAL INVESTMENTS
  (Cost: $42,808,697) 100.0% ...................................   $72,345,739
                                                                   ===========

-------------
*Non-income producing security.


    The accompanying notes are an integral part of these financial statments.


                                       40
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (EQUITY INDEX FUND)
                     PORTFOLIO OF INVESTMENTS IN SECURITIES
                                December 31, 1999

                                                            Shares        Value
                                                           -------      --------
INDEXED ASSETS:
COMMON STOCKS
  3Com Corp. .......................................          778       $ 36,566
  Abbott Laboratories ..............................        3,474        126,150
  Adaptec, Inc. ....................................          236         11,770
  ADC Telecommunications, Inc. .....................          342         24,816
  Adobe Systems, Inc. ..............................          272         18,292
  Advanced Micro Devices, Inc. .....................          336          9,723
  AES Corp. ........................................          470         35,132
  Aetna, Inc. ......................................          342         19,088
  Aflac, Inc. ......................................          607         28,643
  Air Products & Chemicals, Inc. ...................          524         17,587
  Alberto-Culver Co. Cl A ..........................          125          3,227
  Albertson's, Inc. ................................          960         30,960
  Alcan Aluminum Ltd. ..............................          507         20,882
  ALCOA, Inc. ......................................          837         69,471
  Allegheny Technologies, Inc. .....................          213          4,779
  Allergan, Inc. ...................................          294         14,626
  Allied Waste Industries, Inc. ....................          430          3,789
  Allstate Corp. ...................................        1,823         43,752
  Alltel Corp. .....................................          697         57,633
  Alza Corp. .......................................          232          8,033
  Amerada Hess Corp. ...............................          201         11,407
  Ameren Corp. .....................................          305          9,989
  America Online, Inc. .............................        5,061        381,789
  American Electric Power,Inc ......................          442         14,199
  American Express Co. .............................        1,026        170,572
  American General Corp. ...........................          561         42,566
  American Greetings Corp. Cl A ....................          149          3,520
  American Home Products Corp. .....................        2,945        116,143
  American Int'l. Group, Inc. ......................        3,491        377,464
  Amgen, Inc. ......................................        2,329        139,886
  AMR Corp. ........................................          340         22,780
  Amsouth Bancorporation ...........................          899         17,362
  Anadarko Petroleum Corp. .........................          283          9,657
  Analog Devices, Inc. .............................          395         36,735
  Andrew Corp. .....................................          184          3,484
  Anheuser-Busch Cos., Inc. ........................        1,068         75,694
  Aon Corp. ........................................          585         23,400
  Apache Corp. .....................................          260          9,604
  Apple Computer, Inc. .............................          367         37,732
  Applied Materials, Inc. ..........................          857        108,571
  Archer-Daniels-Midland Co. .......................        1,372         16,721
  Armstrong World Inds., Inc. ......................           89          2,970
  Ashland, Inc. ....................................          166          5,468
  Associates First Capital Corp. Cl A ..............        1,663         45,629
  AT&T Corp. .......................................        7,206        365,704
  Atlantic Richfield Co. ...........................          736         63,664
  Autodesk, Inc. ...................................          132          4,455
  Automatic Data Processing, Inc ...................        1,413         76,125
  AutoZone, Inc. ...................................          334         10,792
  Avery Dennison Corp. .............................          252         18,364
  Avon Products, Inc. ..............................          546         18,018
  Baker Hughes, Inc. ...............................          751         15,818
  Ball Corp ........................................           69          2,717
  Bank of America Corp. ............................        3,850        193,222
  Bank of New York Co., Inc. .......................        1,679         67,160
  Bank One Corp. ...................................        2,586         82,914
  Bard (C.R.), Inc. ................................          114          6,042
  Barrick Gold Corp. ...............................          891         15,760
  Bausch & Lomb, Inc. ..............................          125          8,555
  Baxter International, Inc. .......................          665         41,770
  BB & T Corp. .....................................          730         19,984
  Bear Stearns Cos., Inc. ..........................          270         11,542
  Becton Dickinson & Co. ...........................          572         15,301
  Bed Bath & Beyond, Inc. ..........................          319         11,085
  Bell Atlantic Corp. ..............................        3,502        215,592
  BellSouth Corp. ..................................        4,245        198,719
  Bemis, Inc. ......................................          117          4,080
  Best Buy, Inc. ...................................          465         23,337
  Bestfoods ........................................          637         33,482
  Bethlehem Steel Corp. ............................          299          2,504
  Biomet, Inc. .....................................          250         10,000
  Black & Decker Corp. .............................          196         10,241
  Block (H. & R.), Inc. ............................          217          9,494
  BMC Software, Inc. ...............................          546         43,646
  Boeing Co. .......................................        2,107         87,572
  Boise Cascade Corp. ..............................          125          5,062
  Boston Scientific Corp. ..........................          944         20,650
  Briggs & Stratton Corp. ..........................           52          2,788
  Bristol-Myers Squibb Co. .........................        4,473        287,111
  Brown-Forman Corp. Cl B ..........................          152          8,702
  Brunswick Corp. ..................................          204          4,539
  Burlington Northern Santa Fe .....................        1,030         24,977
  Burlington Resources, Inc. .......................          497         16,432
  Cabletron Systems, Inc. ..........................          398         10,348
  Campbell Soup Co. ................................          991         38,339
  Capital One Financial Corp. ......................          451         21,733
  Cardinal Health, Inc. ............................          622         29,778
  Carnival Corp. ...................................        1,401         66,985
  Carolina Power & Light Co. .......................          355         10,805
  Caterpillar, Inc. ................................          812         38,215
  CBS Corp. ........................................        1,741        111,315
  Cendant Corp. ....................................        1,603         42,580
  Centex Corp. .....................................          132          3,259
  Central & South West Corp. .......................          486          9,720
  CenturyTel, Inc. .................................          319         15,113
  Ceridian Corp. ...................................          331          7,137
  Champion International Corp. .....................          213         13,193
  Charles Schwab Corp. .............................        1,868         71,684
  Chase Manhattan Corp. ............................        1,860        144,499
  Chevron Corp. ....................................        1,498        129,764
  Chubb Corp. ......................................          402         22,638
  CIGNA Corp. ......................................          425         34,239
  Cincinnati Financial Corp. .......................          377         11,758
  CINergy Corp. ....................................          363          8,757
  Circuit City Group, Inc. .........................          459         20,684
  Cisco Systems, Inc. ..............................        7,376        790,154
  Citigroup, Inc. ..................................        7,603        422,442
  Citrix Systems, Inc. .............................          201         24,723
  Clear Channel Communications, Inc. ...............          771         68,812
  Clorox Co. .......................................          539         27,152
  CMS Energy Corp. .................................          270          8,421
  Coastal Corp. ....................................          487         17,258
  Coca-Cola Co. ....................................        5,570        324,452
  Coca-Cola Enterprises, Inc. ......................          970         19,521
  Colgate-Palmolive Co. ............................        1,331         86,515
  Columbia Energy Group ............................          186         11,765
  Columbia/HCA Healthcare Corp. ....................        1,289         37,784
  Comcast Corp. Cl A ...............................        1,711         86,512
  Comerica, Inc. ...................................          357         16,667
  Compaq Computer Corp. ............................        3,834        103,758
  Computer Associates Intl., Inc ...................        1,228         85,883
  Computer Sciences Corp. ..........................          365         34,538
  Compuware Corp. ..................................          816         30,396
  Comverse Technology Inc. .........................          160         23,160
  Conagra, Inc. ....................................        1,115         25,157
  Conoco, Inc. Cl B ................................        1,432         35,621

    The accompanying notes are an integral part of these financial statments.


                                       41
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (EQUITY INDEX FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                                December 31, 1999

                                                           Shares        Value
                                                          -------     ----------
INDEXED ASSETS (Continued):
COMMON STOCKS (CONTINUED)
  Conseco, Inc. .....................................       747       $   13,353
  Consolidated Edison, Inc. .........................       505           17,422
  Consolidated Natural Gas Co. ......................       213           13,832
  Consolidated Stores Corp. .........................       244            3,965
  Constellation Energy Group, Inc. ..................       342            9,918
  Cooper Industries, Inc. ...........................       210            8,492
  Cooper Tire & Rubber Co. ..........................       169            2,630
  Coors (Adolph) Co. Cl B ...........................        81            4,252
  Corning, Inc. .....................................       559           72,076
  Costco Wholesale Corp. ............................       504           45,990
  Countrywide Credit Industries, Inc. ...............       251            6,338
  Crane Co. .........................................       153            3,041
  Crown Cork & Seal, Inc. ...........................       272            6,086
  CSX Corp. .........................................       497           15,593
  Cummins Engine Co., Inc. ..........................        93            4,493
  CVS Corp. .........................................       895           35,744
  Dana Corp. ........................................       369           11,047
  Danaher Corp. .....................................       316           15,247
  Darden Restaurants, Inc. ..........................       297            5,383
  Dayton-Hudson Corp. ...............................     1,010           74,172
  Deere & Co. .......................................       534           23,162
  Dell Computer Corp. ...............................     5,730          292,230
  Delphi Automotive Systems Corp ....................     1,290           20,317
  Delta Air Lines, Inc. .............................       315           15,691
  Deluxe Corp. ......................................       173            4,747
  Dillard's Inc. Cl A ...............................       238            4,805
  Disney (Walt) Co. .................................     4,651          136,042
  Dollar General Corp. ..............................       600           13,650
  Dominion Resources, Inc. ..........................       438           17,191
  Donnelley (R.R.) & Sons Co. .......................       290            7,196
  Dover Corp. .......................................       476           21,598
  Dow Chemical Co. ..................................       503           67,213
  Dow Jones & Co., Inc. .............................       201           13,668
  DTE Energy Co. ....................................       323           10,134
  Du Pont (E.I.) de Nemours & Co ....................     2,356          155,234
  Duke Energy Corp. .................................       833           41,754
  Dun & Bradstreet Corp. ............................       368           10,856
  Eastern Enterprises ...............................        59            3,389
  Eastman Chemical Co. ..............................       176            8,393
  Eastman Kodak Co. .................................       723           47,899
  Eaton Corp. .......................................       159           11,547
  Ecolab, Inc. ......................................       288           11,268
  Edison International ..............................       793           20,767
  El Paso Energy Corp. ..............................       520           20,182
  Electronic Data Systems Corp. .....................     1,062           71,088
  EMC Corp. .........................................     2,314          252,804
  Emerson Electric Co. ..............................       992           56,916
  Engelhard Corp. ...................................       288            5,436
  Enron Corp. .......................................     1,630           72,331
  Entergy Corp. .....................................       564           14,523
  Equifax, Inc. .....................................       320            7,540
  Exxon Mobil Corp. .................................     7,788          627,421
  Fannie Mae ........................................     2,311          144,293
  FDX Corp. .........................................       679           27,797
  Federated Department Stores, Inc. .................       467           23,613
  FHLMC .............................................     1,588           74,735
  Fifth Third Bancorp ...............................       689           50,555
  First Data Corp. ..................................       945           46,600
  First Union Corp. .................................     2,227           73,073
  Firstar Corp. .....................................     2,210           46,686
  FirstEnergy Corp. .................................       528           11,979
  FleetBoston Financial Corp. .......................     2,065           71,888
  Fleetwood Enterprises, Inc. .......................        78            1,609
  Florida Progress Corp. ............................       216            9,139
  Fluor Corp. .......................................       168            7,707
  FMC Corp. .........................................        70            4,012
  Ford Motor Co. ....................................     2,724          145,564
  Fort James Corp. ..................................       505           13,824
  Fortune Brands, Inc. ..............................       380           12,564
  Foster Wheeler Corp. ..............................        91              808
  FPL Group, Inc. ...................................       403           17,253
  Franklin Resources, Inc. ..........................       576           18,468
  Freeport-McMoran Copper &
     Gold, Inc.Cl B .................................       373            7,880
  Gannett Co., Inc. .................................       639           52,118
  Gap, Inc. .........................................     1,958           90,068
  Gateway, Inc. .....................................       715           51,525
  General Dynamics Corp. ............................       455           24,001
  General Electric Co. ..............................     7,399        1,144,995
  General Instrument Corp. ..........................       396           33,660
  General Mills, Inc. ...............................       698           24,953
  General Motors Corp. ..............................     1,471          106,923
  Genuine Parts Co. .................................       400            9,925
  Georgia-Pacific Group .............................       392           19,894
  Gillette Co. ......................................     2,419           99,633
  Global Crossing Ltd. ..............................     1,711           85,550
  Golden West Financial Corp. .......................       381           12,763
  Goodrich (B.F.) Co. ...............................       244            6,710
  Goodyear Tire & Rubber Co. ........................       357           10,063
  GPU, Inc. .........................................       279            8,353
  Grainger (W.W.), Inc. .............................       207            9,897
  Great Atlantic & Pac. Tea, Inc. ...................        85            2,369
  Great Lakes Chemical Corp. ........................       132            5,041
  GTE Corp. .........................................     2,192          154,673
  Guidant Corp. .....................................       690           32,430
  Halliburton Holdings Co. ..........................     1,008           40,572
  Harcourt General, Inc. ............................       158            6,359
  Harrah's Entertainment, Inc. ......................       293            7,746
  Hartford Financial Svs Gp, Inc ....................       516           24,445
  Hasbro, Inc. ......................................       437            8,330
  HealthSouth Corp. .................................       871            4,682
  Heinz (H.J.) Co. ..................................       818           32,567
  Helmerich & Payne, Inc. ...........................       110            2,399
  Hercules, Inc. ....................................       235            6,551
  Hershey Food Corp. ................................       310           14,725
  Hewlett-Packard Co. ...............................     2,313          263,537
  Hilton Hotels Corp. ...............................       842            8,104
  Home Depot, Inc. ..................................     5,192          355,942
  Homestake Mining Co. ..............................       594            4,641
  Honeywell International, Inc. .....................     1,802          103,953
  Household International, Inc. .....................     1,060           39,485
  Humana, Inc. ......................................       383            3,136
  Huntington Bancshares, Inc. .......................       526           12,558
  Ikon Office Solutions, Inc. .......................       341            2,323
  Illinois Tool Works, Inc. .........................       685           46,280
  IMS Health, Inc. ..................................       714           19,412
  Inco Ltd. .........................................       438           10,293
  Ingersoll Rand Co. ................................       377           20,759
  Intel Corp. .......................................     7,554          621,789
  International Business Machines Corp. ............      4,065          439,020
  International Paper Co. ...........................       944           53,277
  Interpublic Group of Cos., Inc. ...................       644           37,151
  Intl. Flavors & Fragrances ........................       236            8,909
  ITT Industries, Inc. ..............................       195            6,520
  Jefferson-Pilot Corp. .............................       236           16,107
  Johnson & Johnson .................................     3,136          292,040
  Johnson Controls, Inc. ............................       189           10,749
  Jostens, Inc. .....................................        76            1,848
  Kansas City Southern Inds., Inc. ..................       244           18,209

    The accompanying notes are an integral part of these financial statments.


                                       42
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (EQUITY INDEX FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                                December 31, 1999

                                                          Shares         Value
                                                         -------      ----------
INDEXED ASSETS (CONTINUED):
COMMON STOCKS (CONTINUED)
  Kaufman & Broad Home Corp. .......................        107       $    2,588
  Kellogg Co. ......................................        925           28,502
  Kerr-McGee Corp. .................................        192           11,904
  KeyCorp ..........................................      1,025           22,678
  Kimberly Clark Corp. .............................      1,217           79,409
  KLA-Tencor Corp. .................................        195           21,718
  Kmart Corp. ......................................      1,127           11,340
  Knight-Ridder, Inc. ..............................        185           11,008
  Kohl's Corp. .....................................        372           26,854
  Kroger Co. .......................................      1,894           35,749
  Legget & Platt, Inc. .............................        449            9,625
  Lehman Brothers Holdings, Inc. ...................        274           23,204
  Lexmark Intl Group Inc. Cl A .....................        286           25,883
  Lilly (Eli) & Co. ................................      2,459          163,524
  Limited, Inc. ....................................        489           21,180
  Lincoln National Corp. ...........................        450           18,000
  Liz Claiborne, Inc. ..............................        140            5,268
  Lockheed Martin Corp. ............................        902           19,731
  Loews Corp. ......................................        242           14,686
  Longs Drug Stores Corp. ..........................         87            2,246
  Louisiana-Pacific Corp. ..........................        242            3,449
  Lowe's Companies, Inc. ...........................        871           52,042
  LSI Logic Corp. ..................................        337           22,748
  Lucent Technologies, Inc. ........................      7,065          528,550
  Mallinckrodt, Inc. ...............................        159            5,058
  Manor Care, Inc. .................................        247            3,952
  Marriott International, Inc. Cl A ................        568           17,928
  Marsh & McLennan Cos., Inc. ......................        603           57,700
  Masco Corp. ......................................      1,012           25,680
  Mattel, Inc. .....................................        960           12,600
  May Department Stores Co. ........................        763           24,607
  Maytag Corp. .....................................        196            9,408
  MBIA, Inc. .......................................        221           11,672
  MBNA Corp. .......................................      1,831           49,895
  McDermott International, Inc. ....................        132            1,196
  McDonald's Corp. .................................      3,053          123,074
  McGraw-Hill Cos., Inc. ...........................        449           27,670
  MCI WorldCom, Inc. ...............................      6,417          340,502
  McKesson HBOC, Inc. ..............................        642           14,485
  Mead Corp. .......................................        227            9,860
  MediaOne Group, Inc. .............................      1,385          106,385
  Medtronic, Inc. ..................................      2,680           97,653
  Mellon Financial Corp. ...........................      1,174           39,989
  Merck & Co., Inc. ................................      5,271          353,486
  Meredith Corp. ...................................        116            4,836
  Merrill Lynch & Co., Inc. ........................        844           70,474
  MGIC Investment Corp. ............................        244           14,686
  Micron Technology, Inc. ..........................        609           47,350
  Microsoft Corp. ..................................     11,655        1,360,721
  Milacron, Inc. ...................................         82            1,261
  Millipore Corp. ..................................         98            3,785
  Minnesota Mining & Mfg. Co. ......................        920           90,045
  Mirage Resorts, Inc. .............................        454            6,952
  Molex Inc. .......................................        354           20,067
  Monsanto Co. .....................................      1,447           51,549
  Morgan (J.P.) & Co., Inc. ........................        394           49,890
  Morgan Stanley Dean Witter & Co. .................      1,256          179,294
  Motorola, Inc. ...................................      1,387          204,236
  Nabisco Group Holdings Corp. .....................        745            7,916
  NACCO Industries, Inc. Cl A ......................         18            1,000
  National City Corp. ..............................      1,412           33,447
  National Semiconductor Corp. .....................        384           16,440
  National Service Industries ......................         92            2,714
  Navistar International Corp. .....................        147            6,964
  Network Appliance, Inc. ..........................        320           26,580
  New Century Energies, Inc. .......................        254            7,715
  New York Times Co. Cl A ..........................        391           19,208
  Newell Rubbermaid, Inc. ..........................        644           18,676
  Newmont Mining Corp. .............................        383            9,384
  Nextel Communications, Inc. Cl A .................        826           85,181
  Niagara Mohawk Holdings, Inc. ....................        428            5,965
  Nicor, Inc. ......................................        106            3,445
  Nike, Inc. Cl B ..................................        642           31,819
  Nordstrom, Inc. ..................................        316            8,275
  Norfolk Southern Corp. ...........................        869           17,815
  Nortel Networks Corp .............................      3,031          306,131
  Northern States Power Co. ........................        352            6,864
  Northern Trust Corp. .............................        494           26,182
  Northrop Grumman Corp. ...........................        153            8,272
  Novell, Inc. .....................................        765           30,552
  Nucor Corp. ......................................        195           10,688
  Occidental Petroleum Corp. .......................        829           17,927
  Office Depot, Inc. ...............................        742            8,116
  Old Kent Financial Corp. .........................        271            9,587
  Omnicom Group, Inc. ..............................        397           39,700
  Oneok, Inc. ......................................         70            1,759
  Oracle Corp. .....................................      3,211          359,833
  Owens Corning ....................................        121            2,337
  Owens-Illinois, Inc. .............................        356            8,922
  Paccar, Inc. .....................................        174            7,710
  Pactiv Corp. .....................................        389            4,133
  Paine Webber Group, Inc. .........................        324           12,575
  Pall Corp. .......................................        277            5,973
  Parametric Technology Corp. ......................        615           16,643
  Parker Hannifin Corp. ............................        241           12,366
  Paychex, Inc. ....................................        562           22,480
  PE Corp-PE Biosystems Group ......................        233           28,033
  Peco Energy Co. ..................................        426           14,804
  Penney (J.C.) Co., Inc. ..........................        602           12,002
  Peoples Energy Corp. .............................         79            2,647
  Peoplesoft, Inc. .................................        555           11,828
  Pep Boys-Manny, Moe & Jack .......................        117            1,068
  PepsiCo, Inc. ....................................      3,283          115,726
  Perkin Elmer, Inc. ...............................        100            4,169
  Pfizer, Inc. .....................................      8,730          283,179
  PG & E Corp. .....................................        877           17,979
  Pharmacia & Upjohn, Inc. .........................      1,157           52,065
  Phelps Dodge Corp. ...............................        202           13,577
  Phillip Morris Cos., Inc. ........................      5,336          123,729
  Phillips Petroleum Co. ...........................        578           27,166
  Pinnacle West Capital Corp. ......................        194            5,929
  Pitney Bowes, Inc. ...............................        611           29,519
  Placer Dome, Inc. ................................        743            7,987
  PNC Bank Corp. ...................................        663           29,504
  Polaroid Corp. ...................................         98            1,844
  Potlatch Corp. ...................................         64            2,856
  PP&L Resources, Inc. .............................        324            7,412
  PPG Industries, Inc. .............................        396           24,775
  Praxair, Inc. ....................................        364           18,314
  Price (T. Rowe) & Associates, Inc. ...............        277           10,232
  Proctor & Gamble Co. .............................      2,964          324,743
  Progressive Corp. of Ohio ........................        161           11,773
  Providian Financial Corp. ........................        315           28,685
  Public Svc. Enterprise Group, Inc. ...............        501           17,441
  Pulte Corp. ......................................         96            2,160
  Quaker Oats Co. ..................................        303           19,884
  Qualcomm, Inc. ...................................      1,468          258,735
  Quintiles Transnational Corp. ....................        262            4,896

    The accompanying notes are an integral part of these financial statments.


                                       43
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (EQUITY INDEX FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                                December 31, 1999

                                                          Shares          Value
                                                         -------       ---------
INDEXED ASSETS (Continued):
Common Stocks (Continued)
  Ralston Purina Group .............................        739      $    20,600
  Raytheon Co. Cl B ................................         771          20,480
  Reebok International Ltd. ........................         126           1,032
  Regions Financial Corp. ..........................         511          12,839
  Reliant Energy, Inc. .............................         676          15,464
  Republic New York Corp. ..........................         233          16,776
  Reynolds Metals Co. ..............................         143          10,957
  Rite-Aid Corp. ...................................         591           6,612
  Rockwell Intl., Corp. ............................         437          20,921
  Rohm & Haas Co. ..................................         497          20,222
  Rowan Cos., Inc. .................................         184           3,991
  Royal Dutch Petroleum Co. N.Y ....................       4,836         292,276
  Russell Corp. ....................................          76           1,273
  Ryder System, Inc. ...............................         147           3,592
  Safeco Corp. .....................................         292           7,264
  Safeway, Inc. ....................................       1,165          41,430
  Sara Lee Corp. ...................................       2,063          45,515
  SBC Communications, Inc. .........................       7,693         375,034
  Schering-Plough Corp. ............................       3,313         139,767
  Schlumberger, Ltd. ...............................       1,251          70,369
  Scientific-Atlanta, Inc. .........................         168           9,345
  Scottish Power plc -- ADR ........................           *              27
  Seagate Technology ...............................         476          22,164
  Seagram Ltd. .....................................         988          44,398
  Sealed Air Corp. New .............................         186           9,637
  Sears Roebuck & Co. ..............................         869          26,450
  Sempra Energy ....................................         549           9,539
  Service Corp. International ......................         621           4,308
  Shared Medical Systems Corp. .....................          59           3,005
  Sherwin-Williams Co. .............................         387           8,127
  Sigma-Aldrich Corp. ..............................         224           6,734
  Silicon Graphics, Inc. ...........................         431           4,229
  SLM Holding Corp. ................................         361          15,252
  Snap-On, Inc. ....................................         145           3,852
  Solectron Corp. ..................................         669          63,639
  Southern Co. .....................................       1,518          35,673
  Southtrust Corp. .................................         382          14,444
  Southwest Airlines Co. ...........................       1,151          18,632
  Springs Industries, Inc. .........................          40           1,598
  Sprint Corp. (FON Group) .........................       1,981         133,346
  Sprint Corp. (PCS Group) .........................         972          99,630
  St. Jude Medical, Inc. ...........................         187           5,739
  St. Paul Companies, Inc. .........................         518          17,450
  Stanley Works ....................................         198           5,965
  Staples, Inc. ....................................       1,061          22,016
  State Street Corp. ...............................         368          26,887
  Summit Bancorp ...................................         404          12,373
  Sun Microsystems, Inc. ...........................       3,534         273,664
  Sunoco, Inc. .....................................         201           4,724
  Suntrust Banks, Inc. .............................         735          50,577
  Supervalu, Inc. ..................................         309           6,180
  Synovus Financial Corp. ..........................         620          12,323
  Sysco Corp. ......................................         756          29,909
  Tandy Corp. ......................................         441          21,692
  Tektronix, Inc. ..................................         104           4,043
  Tellabs, Inc. ....................................         894          57,384
  Temple-Inland, Inc. ..............................         124           8,176
  Tenet Healthcare Corp. ...........................         709          16,662
  Teradyne, Inc. ...................................         391          25,806
  Texaco, Inc. .....................................       1,262          68,542
  Texas Instruments, Inc. ..........................       1,794         173,794
  Texas Utilities Co. ..............................         631          22,440
  Textron, Inc. ....................................         334          25,614
  Thermo Electron Corp. ............................         354           5,310
  Thomas & Betts Corp. .............................         126           4,016
  Time Warner, Inc. ................................       2,901         210,141
  Times Mirror Co. .................................         136           9,112
  Timken Co. .......................................         138           2,820
  TJX Companies ....................................         725          14,817
  Torchmark Corp. ..................................         296           8,603
  Tosco Corp. ......................................         348           9,461
  Toys R Us, Inc. ..................................         559           8,001
  Transocean Sedco Forex, Inc. .....................         242           8,159
  Tribune Co. ......................................         541          29,789
  Tricon Global Restaurants Inc. ...................         351          13,557
  TRW, Inc. ........................................         277          14,387
  Tupperware Corp. .................................         128           2,168
  Tyco International Ltd. ..........................       3,821         148,541
  U.S. Bancorp .....................................       1,641          39,076
  U.S. West, Inc. ..................................       1,152          82,944
  Unicom Corp. .....................................         496          16,616
  Unilever N.V .....................................       1,305          71,041
  Union Carbide Corp. ..............................         296          19,758
  Union Pacific Corp. ..............................         566          24,692
  Union Pacific Resources Group, Inc. ..............         575           7,331
  Union Planters Corp. .............................         326          12,857
  Unisys Corp. .....................................         699          22,324
  United Healthcare Corp. ..........................         396          21,038
  United Technologies Corp. ........................       1,100          71,500
  Unocal Corp. .....................................         554          18,594
  UNUMProvident Corp. ..............................         545          17,474
  US Airways Group Inc. ............................         164           5,258
  UST, Inc. ........................................         390           9,823
  USX-Marathon Group ...............................         705          17,405
  USX-U.S. Steel Group .............................         197           6,501
  V F Corp. ........................................         267           8,010
  Viacom, Inc. Cl B ................................       1,591          96,156
  Vulcan Materials Co. .............................         224           8,946
  W.R. Grace & Co. .................................         163           2,262
  Wachovia Corp. ...................................         462          31,416
  Wal-Mart Stores, Inc. ............................      10,036         693,739
  Walgreen Co. .....................................       2,292          67,041
  Warner-Lambert Co. ...............................       1,952         159,942
  Washington Mutual, Inc. ..........................       1,322          34,372
  Waste Management, Inc. ...........................       1,414          24,303
  Watson Pharmaceuticals, Inc. .....................         212           7,592
  Wellpoint Health Networks Inc. Cl A ..............         150           9,891
  Wells Fargo & Company ............................       3,704         149,781
  Wendy's International, Inc. ......................         277           5,713
  Westvaco Corp. ...................................         223           7,275
  Weyerhaeuser Co. .................................         538          38,635
  Whirlpool Corp. ..................................         169          10,996
  Willamette Industries, Inc. ......................         247          11,470
  Williams Cos., Inc. ..............................         992          30,318
  Winn-Dixie Stores, Inc. ..........................         331           7,923
  Worthington Industries, Inc. .....................         206           3,412
  Wrigley (Wm.) Jr. Co. ............................         258          21,398
  Xerox Corp. ......................................       1,514          34,349
  Xilinx, Inc. .....................................         722          32,828
  Yahoo!, Inc. .....................................         594         257,016
                                                                     -----------
Total Indexed Assets--Common Stocks
(Cost: $25,839,134) 94.6% ..........................                 $27,861,578
                                                                     -----------

-------------
* Fractional share attributable to Corporate Action

    The accompanying notes are an integral part of these financial statments.


                                       44
<PAGE>

        MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (EQUITY INDEX FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                               December 31, 1999

                                                           Face
                                     Rate    Maturity     Amount        Value
                                     ----    --------     ------        -----
SHORT-TERM DEBT SECURITIES:
U.S. GOVERNMENT (0.3%)
  U.S. Treasury Bill (a) .........   5.13%   01/20/00    $100,000    $    99,728
                                                                     -----------
AGENCIES (1.5%)
  Federal Home Loan Bank. ........   4.75    01/12/00     439,000        438,363
                                                                     -----------
COMMERCIAL PAPER (3.6%)
  Novartis Finance Corp. .........   5.15    01/24/00     550,000        548,190
  Snap-On, Inc. ..................   4.00    01/03/00     500,000        499,889
                                                                     -----------
                                                                       1,048,079
                                                                     -----------
TOTAL SHORT-TERM DEBT SECURITIES
   (Cost: $1,586,170) 5.4% ......................................      1,586,170
                                                                     -----------
TOTAL INVESTMENTS
   (Cost: $27,425,304) 100.0% ...................................    $29,447,748
                                                                     ===========

-------------
FUTURES CONTRACTS OUTSTANDING AS OF DECEMBER 31, 1999:

                                     Expiration    Underlying Face  Unrealized
                                        Date       Amount at Value     Gain
                                     ----------    ---------------  ----------
Purchased
  4 S&P 500 Stock Index Futures
  Contracts ......................   March 2000      $1,484,200       $48,763
                                                     ==========       =======

The face value of futures  purchased  and  outstanding  as  percentage  of total
investment in securities: 5.0%.
-------------
(a)  The security has been segregated to cover initial requirements on open
     futures contracts.

    The accompanying notes are an integral part of these financial statments.


                                       45
<PAGE>

             MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (BOND FUND)
                     PORTFOLIO OF INVESTMENTS IN SECURITIES
                                December 31, 1999

<TABLE>
<CAPTION>

                                                                    Face
                                       Rate       Maturity         Amount            Value
                                       ----       --------         ------            -----
<S>                                    <C>        <C>            <C>            <C>
LONG-TERM DEBT SECURITIES:
U.S. GOVERMENT (18.8%)
  U.S. Treasury Bond ................  7.13%      02/15/23       $1,500,000     $  1,561,635
  U.S. Treasury Note ................  6.63       04/30/02          500,000          503,830
  U.S. Treasury Note ................  6.50       05/15/05        3,250,000        3,251,007
                                                                                ------------
                                                                                   5,316,472
                                                                                ------------
AGENCIES/OTHER (11.4%)
  FHLMC .............................  8.00       07/15/06          187,312          190,180
  FHLMC .............................  6.50       10/15/06          178,675          177,781
  FHLMC .............................  7.63       09/09/09          500,000          493,830
  FNMA ..............................  7.00       11/25/05          422,106          421,051
  FNMA ..............................  7.00       10/25/07        1,000,000          993,430
  Republic of Iceland ...............  6.13       02/01/04        1,000,000          955,160
                                                                                ------------
                                                                                   3,231,432
                                                                                ------------
BASIC MATERIALS (5.5%)
  Georgia-Pacific (Timber Group) ....  8.63       04/30/25          250,000          245,353
  Millennium America Inc. ...........  7.63       11/15/26        1,000,000          831,680
  Praxair, Inc. .....................  6.90       11/01/06          500,000          472,410
                                                                                ------------
                                                                                   1,549,443
                                                                                ------------
CONSUMER, CYCLICAL (9.3%)
  Fruit of the Loom, Inc. ...........  7.00       03/15/11          250,000           56,250
  Fruit of the Loom, Inc. ...........  7.38       11/15/23          250,000           86,250
  Oakwood Homes Corp. ...............  8.13       03/01/09        1,000,000          920,869
  Polaroid Corp. ....................  7.25       01/15/07          250,000          213,115
  Pulte Corp. .......................  7.63       10/15/17          500,000          426,050
  Tommy Hilfiger USA, Inc. ..........  6.50       06/01/03          500,000          474,155
  Venator Group, Inc. ...............  7.00       10/15/02          500,000          455,000
                                                                                ------------
                                                                                   2,631,689
                                                                                ------------
CONSUMER, NON-CYCLICAL (10.3%)
  Bausch & Lomb, Inc. ...............  6.75       12/15/04          500,000          478,905
  Bausch & Lomb, Inc. ...............  6.38       08/01/03          500,000          484,495
  Kellwood, Co. .....................  7.88       07/15/09        1,000,000          911,820
  Supervalu, Inc. ...................  8.88       11/15/22        1,000,000        1,051,210
                                                                                ------------
                                                                                   2,926,430
                                                                                ------------
ENERGY (5.2%)
  Columbia Gas Systems, Inc. ........  6.61       11/28/02        1,000,000          975,020
  Arco Chemical Co. ................. 10.25       11/01/10          500,000          493,715
                                                                                ------------
                                                                                   1,468,735
                                                                                ------------
FINANCIAL (17.5%)
  Bear Stearns Cos., Inc. ...........  6.63       10/01/04        1,000,000          959,120
  Chase Manhattan Corp. .............  6.88       12/12/12        1,000,000          963,410
  Executive Risk, Inc. ..............  7.13       12/15/07          500,000          480,485
  First American Financial ..........  7.55       04/01/28          500,000          428,660
  Fremont Gen Corp. .................  7.70       03/17/04          500,000          432,810
  Harleysville Group Inc. ...........  6.75       11/15/03          250,000          241,190
  Lehman Brothers Holdings, Inc. ....  0.00       07/28/28        1,000,000           88,210
  Morgan (J.P.) & Co., Inc. .........  0.00       04/15/27        2,500,000          241,125
  Nationwide Health Properties, Inc.   7.90       11/20/06          500,000          432,510
</TABLE>

    The accompanying notes are an integral part of these financial statments.


                                       46
<PAGE>

             MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (BOND FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                                December 31, 1999

<TABLE>
<CAPTION>
                                                                    Face
                                       Rate       Maturity          Amount          Value
                                       ----       --------        ---------      -----------
<S>                                    <C>        <C>            <C>            <C>
LONG-TERM DEBT SECURITIES (CONTINUED):
FINANCIAL (CONTINUED)
  Rank Group Financial, Inc. ........  6.75%      11/30/04        $ 500,000      $   462,945
  Triad Guaranty, Inc. ..............  7.90       01/15/28          250,000          229,350
                                                                                 -----------
                                                                                   4,959,815
                                                                                 -----------
INDUSTRIAL (12.2%)
  Clark Equipment Co. ...............  8.35       05/15/23          500,000          515,500
  Geon Co. ..........................  7.50       12/15/15          250,000          227,765
  Owens Corning .....................  7.00       03/15/09        1,000,000          879,970
  Thermo Electron Corp. .............  4.25       01/01/03        1,000,000          843,750
  Williams Cos., Inc. ...............  6.50       11/15/02        1,000,000          976,000
                                                                                 -----------
                                                                                   3,442,985
                                                                                 -----------
UTILITIES (1.7%)
  UtiliCorp United, Inc .............  8.00       03/01/23          500,000          488,815
                                                                                 -----------
TOTAL LONG-TERM DEBT SECURITIES (Cost: $27,594,423) 91.9% .................       26,015,816
                                                                                 -----------
SHORT-TERM DEBT SECURITIES:
AGENCIES (1.6%)
  Federal Home Loan Bank ............  4.75       01/12/00          447,000          446,351
                                                                                 -----------
COMMERCIAL PAPER (6.5%)
  Abbott Laboratories ...............  6.25       01/13/00          696,000          694,547
  General Electric Capital Corp. ....  6.33       01/18/00          400,000          398,801
  UBS Finance (Delw.) Inc. ..........  4.00       01/03/00          753,000          752,833
                                                                                 -----------
                                                                                   1,846,181
                                                                                 -----------
TOTAL SHORT-TERM DEBT SECURITIES (Cost $2,292,532) 8.1% ...................        2,292,532
                                                                                 -----------
TOTAL INVESTMENTS 100.0% (Cost: $29,886,955) ..............................      $28,308,348
                                                                                 ===========
</TABLE>

-------------
Abbreviations:  FHLMC = Federal Home Loan Mortgage Corporation
                FNMA = Federal National Mortgage Association

    The accompanying notes are an integral part of these financial statments.


                                       47
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (MONEY MARKET FUND)
                     PORTFOLIO OF INVESTMENTS IN SECURITIES
                                December 31, 1999

<TABLE>
<CAPTION>
                                                   Discount                    Face
                                     Rating*         Rate     Maturity        Amount        Value
                                     -------       --------   --------        ------     -----------
<S>                                   <C>           <C>       <C>            <C>         <C>
SHORT-TERM DEBT SECURITIES:
AGENCIES (10.0%)
 Federal Home Loan Mtge. Corp. .....                5.44%    01/14/00       $2,030,000   $ 2,025,981
 Federal National Mortgage
   Association .....................                5.51%    01/18/00        1,000,000       997,375
                                                                                          ----------
                                                                                           3,023,356
                                                                                          ----------
COMMERCIAL PAPER (90.0%)
  Albertson's, Inc. ................  A1/P1         5.89      1/14/00          984,000       981,892
  Allied Signal, Inc. ..............  A1/P1         5.90      1/27/00          720,000       716,916
  American Express Credit Corp. ....  A1/P1         5.80      1/19/00          720,000       717,894
  Associates Corp. .................  A1+/P1        5.92      2/04/00          921,000       915,829
  AT&T Corp. .......................  A1+/P1        6.01      1/25/00        1,000,000       995,981
  Baltimore Gas & Electric Co. .....  A1/P1         5.88      1/14/00        1,000,000       997,868
  Bear Stearns Cos., Inc. (The) ....  A1/P1         5.94      1/10/00        1,000,000       998,493
  Becton Dickinson & Co. ...........  A1/P1         5.30      1/24/00        1,200,000     1,195,934
  BellSouth Telecommunications .....  A1+/P1        5.05      2/02/00        1,000,000       995,510
  Bemis, Inc. ......................  A1/P1         6.00      1/18/00          660,000       658,108
  British Telecommunications PLC ...  A1+/P1        5.85      1/18/00          632,000       630,241
  Carolina Power & Light Corp. .....  A1/P1         6.18      1/18/00          212,000       211,379
  Carolina Power & Light Corp. .....  A1/P1         6.15      1/28/00          494,000       491,712
  Central Illinois Lighting Co. ....  A1+/P         6.40      1/25/00          600,000       597,422
  CIT Group Holdings ...............  A1/P1         5.98      1/04/00          975,000       974,509
  Daimler Chrysler NA Holdings Corp.  A1/P1         6.10      1/18/00        1,000,000       997,110
  Ford Motor Credit Corp. ..........  A1/P1         6.26      1/10/00        1,000,000       998,430
  General Electric Capital Corp. ...  A1+/P1        5.90      1/27/00          570,000       567,560
  General Electric Capital Corp. ...  A1+/P1        5.98      2/08/00          400,000       397,465
  Great Lakes Chemical Corp. .......  A1/P1         5.90      1/28/00        1,000,000       995,557
  IBM Credit Corp. .................  A1/P1         5.90      1/21/00          500,000       498,353
  Koch Industries, Inc. ............  A1+/P1        5.85      1/10/00          630,000       629,072
  Minnesota Mining & Mfg. Co. ......  A1+/P1        6.05      1/28/00          640,000       637,088
  Motorola Credit Corp. ............  A1+/P1        6.50      1/27/00          250,000       248,824
  Motorola Credit Corp. ............  A1+/P1        5.60      3/31/00          320,000       315,470
  Nicor, Inc. ......................  A1/P1         6.00      1/18/00          800,000       797,725
  Northern Illinois Gas Co. ........  A1+/P1        5.88      1/21/00        1,035,000     1,031,605
  Panasonic Finance, Inc. ..........  A1+/P1        5.87      2/03/00        1,000,000       994,596
  Pfizer, Inc. .....................  A1/P1         6.52      1/19/00        1,000,000       996,735
  Pitney Bowes Inc. ................  A1+/P1        5.20      1/28/00        1,060,000     1,055,864
  Sony Capital Corp. ...............  A1/P1         6.30      1/26/00        1,105,000     1,100,153
  South Carolina Electric & Gas ....  A1/P1         6.60      1/31/00          533,000       530,063
  Toyota Credit de Puerto Rico Corp.  A1/P1         6.02      2/03/00          795,000       790,595
  Toyota Motor Credit Corp. ........  A1+/P1        6.04      1/13/00          428,000       427,135
  UBS Finance (Delw.) Inc. .........  A1+/P1        4.00      1/03/00        1,000,000       999,778
                                                                                          ----------
                                                                                          27,088,866
                                                                                          ----------
TOTAL SHORT-TERM DEBT SECURITIES (Cost: $30,112,272)  100.0% .........................   $30,112,222
                                                                                         ===========
</TABLE>
------------
*  The ratings are provided by Standard & Poor's Corporation/Moody's
   Investor Services. Inc.

    The accompanying notes are an integral part of these financial statments.


                                       48
<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                       STATEMENT OF ASSETS AND LIABILITIES
                                December 31, 1999

<TABLE>
<CAPTION>
                                    All America    Equity Index      Bond      Money Market
                                        Fund           Fund          Fund          Fund
                                    -----------    ------------   -----------  ------------
<S>                                   <C>           <C>           <C>           <C>
ASSETS:
Investments at market value (Notes 1 and 3)
 (Cost:
 All America Fund -- $42,808,697
 Equity Index -- $27,425,304
 Bond Fund -- $29,886,955
 Money Market -- $30,112,272) ......  $72,345,739   $29,447,748   $28,308,348   $30,112,222
Cash ...............................      168,374         4,834         1,780         4,673
Interest and dividends receivable ..       56,754        25,190       420,086            --
Receivable for securities sold .....       93,344         2,009            --            --
Shareholder subscriptions receivable           --            --            --        64,494
                                      -----------   -----------   -----------   -----------
TOTAL ASSETS .......................   72,664,211    29,479,781    28,730,214    30,181,389
                                      -----------   -----------   -----------   -----------
Payable  for securities purchased ..      197,065            --            --            --
Dividend payable to shareholders ...       98,966           859         8,295         9,187
Accrued expenses ...................        2,179           385           635           476
                                      -----------   -----------   -----------   -----------
TOTAL LIABILITIES ..................      298,210         1,244         8,930         9,663
                                      -----------   -----------   -----------   -----------
NET ASSETS .........................  $72,366,001   $29,478,537   $28,721,284   $30,171,726
                                      ===========   ===========   ===========   ===========
SHARES OUTSTANDING (Note 4) ........    4,394,190     2,730,385     3,040,459     2,903,859
                                      ===========   ===========   ===========   ===========
NET ASSET VALUE PER SHARE ..........       $16.47        $10.80         $9.45        $10.39
                                           ======        ======         =====        ======
</TABLE>
    The accompanying notes are an integral part of these financial statments.


                                       49
<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                             STATEMENT OF OPERATIONS
                      For the Year Ended December 31, 1999

<TABLE>
<CAPTION>
                                                      All America    Equity Index     Bond    Money Market
                                                         Fund          Fund(a)        Fund        Fund
                                                      -----------    ------------ ----------- ------------
<S>                                                  <C>            <C>           <C>           <C>
INVESTMENT INCOME (Note 1)
   Dividends ......................................  $    689,846   $   220,075   $        --   $      --
   Interest .......................................       166,929        46,990     1,870,132     871,621
                                                     ------------   -----------   -----------   ---------
Total Investment Income ...........................       856,775       267,065     1,870,132     871,621
                                                     ------------   -----------   -----------   ---------
Expenses (Note 2):
   Investment management fees .....................       318,029        21,648       121,448      33,028
   Directors' (independent) fees and expenses .....        26,380        15,754        26,380      26,380
   Custodian expenses .............................        64,603         4,208         7,116      12,449
   Accounting expenses ............................        30,000        12,000        30,000      30,000
   Transfer agent fees ............................        32,286        12,779        27,663      33,902
   Registration fees and expenses .................        33,698        35,073        22,157      22,436
   Audit ..........................................        10,775         5,000         6,350       4,875
   Printing .......................................        23,243         2,427         9,815       5,855
   Other ..........................................         2,345           851         1,181         814
                                                     ------------   -----------   -----------   ---------
Total Expenses before expense reimbursement .......       541,359       109,740       252,110     169,739
Expense reimbursement .............................        (6,145)      (53,455)      (63,191)   (103,684)
                                                     ------------   -----------   -----------   ---------
Net Expenses ......................................       535,214        56,285       188,919      66,055
                                                     ------------   -----------   -----------   ---------
NET INVESTMENT INCOME .............................       321,561       210,780     1,681,213     805,566
                                                     ------------   -----------   -----------   ---------
NET REALIZED AND UNREALIZED GAIN (LOSS)
   ON INVESTMENTS (Note 1):
Net realized gain (loss) from security transactions     9,735,794       194,402       (77,457)        (43)
Net unrealized appreciation (depreciation)
   of investments .................................     4,620,245     2,022,444    (2,560,834)        (50)
                                                     ------------   -----------   -----------   ---------
NET REALIZED AND UNREALIZED GAIN (LOSS)
   ON INVESTMENTS .................................    14,356,039     2,216,846    (2,638,291)        (93)
                                                     ------------   -----------   -----------   ---------
NET INCREASE (DECREASE) IN NET ASSETS
   RESULTING FROM OPERATIONS ......................  $ 14,677,600   $ 2,427,626   $  (957,078)  $ 805,473
                                                     ============   ===========   ===========   =========
</TABLE>
-------------
(a) Commenced operations May 3, 1999.


   The accompanying notes are an integral part of these financial statements.


                                       50
<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                       STATEMENTS OF CHANGES IN NET ASSETS
                        For the Years Ended December 31,

<TABLE>
<CAPTION>
                                        All America Fund      Equity Index Fund        Bond Fund              Money Market Fund
                                   -------------------------- ----------------- -----------------------  --------------------------
                                       1999           1998         1999(a)        1999         1998         1999           1998
                                       ----           ----         -------        ----         ----         ----           ----
<S>                                <C>           <C>           <C>           <C>           <C>           <C>            <C>
FROM OPERATIONS:
  Net investment income .......... $    321,561  $    344,112  $    210,780  $  1,681,213  $  1,385,514  $    805,566   $   209,895
  Net realized gain (loss) on
    investments ..................    9,735,794     1,118,467       194,402       (77,457)      152,581           (43)         (145)
  Net unrealized appreciation
    (depreciation) of investments     4,620,245    10,652,968     2,022,444    (2,560,834)      346,222           (50)           --
                                   ------------  ------------  ------------  ------------  ------------  ------------   -----------
NET INCREASE (DECREASE) IN NET
  ASSETS RESULTING FROM
  OPERATIONS .....................   14,677,600    12,115,547     2,427,626      (957,078)    1,884,317       805,473       209,750
                                   ------------  ------------  ------------  ------------  ------------  ------------   -----------
Dividend Distributions (Note 5):
     From net investment income ..     (313,199)     (355,096)     (206,332)   (1,688,057)   (1,398,540)     (800,206)     (209,896)
     From capital gains ..........   (9,376,382)     (608,849)      (54,088)      (16,659)     (535,067)           --            --
                                   ------------  ------------  ------------  ------------  ------------  ------------   -----------
Total Distributions ..............   (9,689,581)     (963,945)     (260,420)   (1,704,716)   (1,933,607)     (800,206)     (209,896)
                                   ------------  ------------  ------------  ------------  ------------  ------------   -----------
CAPITAL SHARE TRANSACTIONS
  (Note 4):
    Net Proceeds from sale
      of shares ..................    5,281,443     2,124,083    27,076,821     5,911,602     1,216,884    29,396,830     5,332,372
    Dividend reinvestments .......    9,579,059       956,071       259,510     1,690,023     1,919,969       785,550       193,670
    Cost of shares redeemed ......  (18,282,044)     (105,395)      (25,000)   (1,453,099)           --    (6,528,017)   (6,525,496)
                                   ------------  ------------  ------------  ------------  ------------  ------------   -----------
NET INCREASE (DECREASE) IN
  NET ASSETS FROM CAPITAL
  SHARE TRANSACTIONS .............   (3,421,542)    2,974,759    27,311,331     6,148,526     3,136,853    23,654,363      (999,454)
                                   ------------  ------------  ------------  ------------  ------------  ------------   -----------
NET INCREASE (DECREASE) IN NET
  ASSETS ..                           1,566,477    14,126,361    29,478,537     3,486,732     3,087,563    23,659,630      (999,600)
NET ASSETS, BEGINNING OF PERIOD ..   70,799,524    56,673,163            --    25,234,552    22,146,989     6,512,096     7,511,696
                                   ------------  ------------  ------------  ------------  ------------  ------------   -----------
NET ASSETS, END OF YEAR .......... $ 72,366,001  $ 70,799,524  $ 29,478,537  $ 28,721,284  $ 25,234,552  $ 30,171,726   $ 6,512,096
                                   ============  ============  ============  ============  ============  ============   ===========
COMPONENTS OF NET ASSETS:
  Paid-in capital ................ $ 41,674,733  $ 45,096,275  $ 27,311,331  $ 30,599,549  $ 24,451,023  $ 30,166,066   $ 6,511,703
  Accumulated undistributed net
    investment income ............        1,710        (6,652)        4,448       (13,375)       (6,531)        5,941           581
  Accumulated undistributed
    net realized gain(loss) on
    investments ..................    1,152,516       793,104       140,314      (286,283)     (192,167)         (231)         (188)
  Unrealized appreciation
    (depreciation) of
    investments ..................   29,537,042    24,916,797     2,022,444    (1,578,607)      982,227           (50)           --
                                   ------------  ------------  ------------  ------------  ------------  ------------   -----------
NET ASSETS, END OF YEAR .......... $ 72,366,001  $ 70,799,524  $ 29,478,537  $ 28,721,284  $ 25,234,552  $ 30,171,726   $ 6,512,096
                                   ============  ============  ============  ============  ============  ============   ===========
</TABLE>
-------------
(a) Commenced operations May 3, 1999.

   The accompanying notes are an integral part of these financial statements.


                                       51
<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.

                              FINANCIAL HIGHLIGHTS

<TABLE>
<CAPTION>
                                                                    Years Ended December 31,
                                                  ------------------------------------------------------------
                                                            All America Fund                 Equity Index Fund
SELECTED PER SHARE AND                            -------------------------------------      -----------------
SUPPLEMENTARY DATA:                                1999      1998      1997      1996(e)          1999(f)
--------------------                              ------    ------    ------     ------           -------
<S>                                               <C>       <C>       <C>        <C>              <C>
NET ASSET VALUE, BEGINNING OF PERIOD ..........   $15.08    $12.65    $10.98     $10.00           $10.00
                                                  ------    ------    ------     ------           ------
Income from investment operations:
Net investment income .........................     0.09      0.07      0.08       0.06             0.08
Net gains or losses on securities (realized and
   unrealized) ................................     3.81      2.57      2.77       0.98             0.82
                                                  ------    ------    ------     ------           ------
TOTAL FROM INVESTMENT OPERATIONS ..............     3.90      2.64      2.85       1.04             0.90
                                                  ------    ------    ------     ------           ------
Less dividend distributions:
From net investment income ....................    (0.08)    (0.08)    (0.08)     (0.06)           (0.08)
From capital gains ............................    (2.43)    (0.13)    (1.10)        --            (0.02)
                                                  ------    ------    ------     ------           ------
TOTAL DISTRIBUTIONS ...........................    (2.51)    (0.21)    (1.18)     (0.06)           (0.10)
                                                  ------    ------    ------     ------           ------
NET ASSET VALUE, END OF YEAR ..................   $16.47    $15.08    $12.65     $10.98           $10.80
                                                  ======    ======    ======     ======           ======
Total return (%) (b) ..........................     26.0      21.0      26.0       10.4              9.0
Net assets, end of year ($ millions) ..........     72.4      70.8      56.7       55.5             29.5
Ratio of net investment income to average net
   assets (%) .................................     0.51      0.55      0.59       0.95(a)          1.22(a)
Ratio of expenses to average net assets (%). ..     0.85      0.84      0.84       0.87(a)          0.63(a)
Ratio of expenses to average net assets after
  expense reimbursement (%) ...................     0.84      0.82      0.81       0.85(a)          0.32(a)
      Portfolio turnover rate (%) (c) .........    34.89     41.25     35.96       9.33             5.67

</TABLE>

<TABLE>
<CAPTION>
                                                                       Years Ended December 31,
                                                  ---------------------------------------------------------------
                                                               Bond Fund                    Money Market Fund
SELECTED PER SHARE AND                            -----------------------------------    ------------------------
SUPPLEMENTARY DATA:                                1999      1998       1997   1996(e)    1999     1998    1997(d)
--------------------                              -------   ------     ------  ------    -------   ------  ------
<S>                                               <C>       <C>       <C>      <C>       <C>      <C>      <C>
NET ASSET VALUE, BEGINNING OF PERIOD ..........   $10.41    $10.41    $10.13   $10.01    $10.23   $10.15   $10.00
                                                 -------   -------   -------  -------   -------  -------  -------
Income from investment operations:
Net investment income .........................     0.60      0.61      0.59     0.38      0.50     0.52     0.35
Net gains or losses on securities (realized and
   unrealized) ................................    (0.87)     0.24      0.29     0.12        --       --       --
                                                  ------   -------   -------   ------    ------   ------   ------
TOTAL FROM INVESTMENT OPERATIONS ..............    (0.27)     0.85      0.88     0.50      0.50     0.52     0.35
                                                  ------   -------   -------   ------    ------   ------   ------
Less dividend distributions:
From net investment income ....................    (0.60)    (0.62)    (0.59)   (0.38)    (0.34)   (0.44)   (0.20)
From capital gains ............................    (0.09)    (0.23)    (0.01)      --        --       --       --
                                                  ------   -------   -------   ------    ------   ------   ------
TOTAL DISTRIBUTIONS ...........................    (0.69)    (0.85)    (0.60)   (0.38)    (0.34)   (0.44)   (0.20)
                                                  ------   -------   -------   ------    ------   ------   ------
NET ASSET VALUE, END OF YEAR ..................   $ 9.45    $10.41    $10.41   $10.13    $10.39   $10.23   $10.15
                                                  ======   =======   =======   ======    ======   ======   ======
Total return (%) (b) ..........................     (3.5)      8.3       8.9      5.0       4.9      5.3      3.5
Net assets, end of year ($ millions) ..........     28.7      25.2      22.1     21.0      30.2      6.5     7.52
Ratio of net investment income to average net
   assets (%) .................................     6.23      5.84      5.69     5.63(a)   4.86    5.14      5.17(a)
Ratio of expenses to average net assets (%). ..     0.93     0.97       1.00     0.90(a)   1.02     3.21     2.47(a)
Ratio of expenses to average net assets after
   expense reimbursement (%) ..................     0.70      0.70      0.70     0.70(a)   0.40     0.40     0.40(a)
Portfolio turnover rate (%) (c) ...............    10.07     33.32     56.18    17.85       N/A      N/A      N/A
</TABLE>
----------
(a) Annualized.
(b) Total  return  would have been lower had certain  expenses not been reduced
    through expense reimbursement (Note 2)
(c) Portfolio turnover rate excludes all short-term securities.
(d) Commenced operations May 1, 1997.
(e) Commenced operations May 1, 1996.
(f) Commenced operations May 3, 1999.
N/A = Not Applicable.

   The accompanying notes are an integral part of these financial statements.


                                       52
<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                          NOTES TO FINANCIAL STATEMENTS

1. SIGNIFICANT ACCOUNTING POLICIES AND ORGANIZATION

     Mutual of America  Institutional Funds, Inc. (the "Investment Company") was
incorporated  on October 27, 1994 under the laws of Maryland  and is  registered
under the Investment Company Act of 1940 as a diversified,  open-end  management
investment company (a mutual fund) currently issuing four series of common stock
representing  shares of the All America Fund,  Equity Index Fund, Bond Fund, and
Money Market Fund.  Each fund has its own  investment  objective  and  policies.
Shares of the funds of the  Investment  Company are  offered on a no-load  basis
through its distributor,  Mutual of America Securities Corporation, a registered
broker-dealer and affiliate of the Investment  Company's  investment  management
adviser, Mutual of America Capital Management Corporation (the "Adviser").

     The Investment  Company is designed  primarily as an investment vehicle for
endowments, foundations, corporations,  municipalities and other public entities
and other institutional investors.

     The All America Fund and Bond Fund commenced operations on May 1, 1996. The
Money Market Fund  commenced  operations  on May 1, 1997,  and, the Equity Index
Fund commenced operations onMay 3, 1999.

     The following is a summary of the  significant  accounting  policies of the
Investment Company:

     Security Valuation--Investment securities are valued as follows:

     Equity  securities  are  valued at the last  sales  price on the  principal
exchange on which the  security is traded.  If there is no trading  volume for a
particular  valuation day, the last bid price is used. For any equity securities
traded in the  over-the-counter  market, the security is valued at the last sale
price, or if no sale, at the latest bid price available.

     Short-term  securities  with a  maturity  of 60 days or less are  valued at
amortized cost, which approximates market value for such securities.  Short-term
debt securities maturing in excess of 60 days are stated at market value.

     Debt  securities  are valued at a composite  fair market  value  "evaluated
bid," which may be the last sale price.  Securities for which market  quotations
are not readily  available  will be valued at fair value as  determined  in good
faith by the  Adviser  under  the  direction  of the Board of  Directors  of the
Investment Company.

     Security  Transactions--Security  transactions  are  recorded  on the trade
date.  Realized gain and loss on the sale of short and long-term debt securities
is computed on the basis of amortized  cost at the time of sale.  Realized  gain
and loss on the sale of common  stock is based on the  identified  cost basis of
the security determined on a first-in, first-out ("FIFO") basis.

     The All  America  Fund and the Equity  Index Fund each  maintain an indexed
assets  portfolio.  In order to remain more fully invested in the equity markets
while  minimizing  its  transaction  costs,  the funds may purchase  stock index
futures contracts. Initial cash margin deposits (represented by cash or Treasury
bills) are made upon entering  into futures  contracts.  (This  initial  margin,
maintained in a segregated account, is equal to approximately 5% of the contract
amount, and does not involve the borrowing of funds to finance the transaction).
During the period the futures  contract is outstanding,  changes in the value of
the contract are recognized as unrealized gains or losses by "marking-to-market"
on a daily basis to reflect the market  value of the contract at the end of each
trading day. Futures  contracts are valued at the settlement  price  established
each day by the exchange on which  traded.  Depending  upon  whether  unrealized
gains or losses are incurred,  variation  margin  payments are received or made.
When the contract is closed,  a realized gain or loss from futures  transactions
is recorded,  equal to the net variation margin received or paid over the period
of the contract.

     Investment Income--Interest income is accrued as earned. Dividend income is
recorded on the ex-dividend date.  Foreign source tax withheld from dividends is
recorded as a reduction from dividend income.  Should reclamation succeed,  such
amounts are recorded as income upon collection.

     Federal Income  Taxes--The  Investment  Company  intends to comply with the
requirements  of the Internal  Revenue Code  applicable to regulated  investment
companies  and  to  distribute  substantially  all  of  its  taxable  income  to
shareholders. Therefore, no federal income tax provision is required.


                                       53
<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                    NOTES TO FINANCIAL STATEMENTS (Continued)

2. EXPENSES AND OTHER TRANSACTIONS WITH AFFILIATES

     The Investment  Company has entered into an Investment  Advisory  agreement
with the Adviser. For providing investment management services to the Investment
Company,  each fund accrues a fee, calculated as a daily charge, at annual rates
of .50%,  .125%,  .45%,  and .20% of the  value  of the net  assets  for the All
America,  Equity  Index,  Bond,  and Money  Market  funds,  respectively.  Under
Sub-Advisory  Agreements  for the All America  Fund,  the Adviser has  delegated
investment advisory  responsibilities  to subadvisers  responsible for providing
management  services  for a portion of the fund's  assets.  The Adviser (not the
fund)  is  responsible  for   compensation   payable  under  such   Sub-Advisory
Agreements.

     Each of the funds of the  Investment  Company is charged for those expenses
which can be directly attributed to a fund's operation. Expenses which cannot be
so  attributed  are  generally  allocated  among the funds based on relative net
assets.

     The Adviser  contractually  limits the  expenses  of each fund,  other than
brokers'   commissions,   transfer   taxes  and  fees   relating  to   portfolio
transactions,  investment management expenses and extraordinary  expenses, to an
annual rate of .35%, .20%, .25%, and .20%, of the value of the net assets of the
All America, Equity Index, Bond, and Money Market funds,  respectively.  Accrual
of these other  operating  expenses  is charged  daily  against  each fund's net
assets.  Settlement  of fees  accrued  (both  investment  management  and  other
operating expenses) is paid by each fund to the Adviser on or about month-end.

     The  annual  rates of  operating  expenses  charged  daily to each fund are
subject to periodic  adjustments  so as to maintain as close a  relationship  as
possible  between the  established  rate  (charged  daily) and the fund's actual
expenses, but not to exceed the respective rates under the Adviser's contractual
expense limitation agreement.

     The  Adviser's  contractual  agreement to limit each fund's total  expenses
(excluding   brokerage   commissions,   transfer  taxes/fees  and  extraordinary
expenses) to annual rates of .85%,  .325%,  .70%,  and .40% of the net assets of
the All America, Equity Index, Bond and Money Market funds, respectively,  is in
effect through 2000 and continues in effect  thereafter  unless cancelled by the
Fund or the Adviser in accordance with the agreement.

     The  Investment  Company has an Investment  Accounting  Agreement  with the
Adviser,  pursuant  to which  the  Adviser  has  agreed  to serve as  investment
accounting and recordkeeping  agent for the funds and to calculate the net asset
values of the funds.  The  compensation  paid by the funds for these services is
subject to the expense reimbursement agreement of the Adviser described above.

     A  subadviser  placed a  portion  of its  portfolio  transactions  with its
affiliated  broker-dealer;  such commissions amounted to $11,843 or 25.3% of the
Fund's  total  commissions  and  represented  16.5% of the  aggregate  amount of
commissionable transactions.

3. PURCHASES AND SALES

     The cost of investment  purchases  and proceeds from sales of  investments,
excluding short-term  investments and U.S. Government  securities,  for the year
ended December 31, 1999 was as follows:

<TABLE>
<CAPTION>
                                                  All America  Equity Index    Bond
                                                      Fund         Fund        Fund
                                                  -----------  -----------  ----------
<S>                                               <C>          <C>          <C>
Cost of investment purchases ...................  $21,155,726  $26,474,380  $6,817,510
                                                  ===========  ===========  ==========
Proceeds from sales of investments .............  $34,482,995  $ 1,409,322  $1,050,620
                                                  ===========  ===========  ==========
Thecost of  investment  purchases  and  proceeds
  from sales of U.S.  Government (excluding
  short-term) securities was as follows:
      Cost of investment purchases .............  $        --  $        --  $  499,490
                                                  ===========  ===========  ==========
      Proceeds from sales of investments .......  $        --  $        --  $1,478,155
                                                  ===========  ===========  ==========
</TABLE>


                                       54
<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                  NOTES TO FINANCIAL STATEMENTS -- (Continued)

3. PURCHASES AND SALES (CONTINUED)

      For the Money Market Fund, the cost of short-term securities purchases was
$229,496,686; net proceeds from sales and redemptions was $206,538,420.

      At December 31, 1999 the net  unrealized  appreciation  (depreciation)  of
investments  based on cost, which was  substantially the same for Federal income
tax purposes, was as follows:

<TABLE>
<CAPTION>
                                                     All America    Equity Index     Bond       Money Market
                                                         Fund          Fund          Fund           Fund
                                                     ------------   -----------   -----------   ------------
<S>                                                  <C>            <C>           <C>               <C>
   Unrealized appreciation ........................  $ 31,768,399   $ 4,453,973   $    93,256      $ --
   Unrealized (depreciation) ......................    (2,231,357)   (2,431,529)   (1,671,863)      (50)
                                                     ------------   -----------   -----------      ----
   Net unrealized appreciation (depreciation) .....  $ 29,537,042   $ 2,022,444   $(1,578,607)     $(50)
                                                     ============   ===========   ===========      ====
</TABLE>

4. CAPITAL SHARE ACTIVITY AND AFFILIATED OWNERSHIP

     At December 31, 1999 one billion shares of common stock has been authorized
for the  Investment  Company.  The Board of Directors  has  allocated 25 million
shares to the All America Fund, and, 15 million shares each to the Equity Index,
Bond and Money Market Funds.

     Transactions  in shares  during the year ending  December  31, 1999 were as
follows:

<TABLE>
<CAPTION>
                                            All America     Equity Index      Bond    Money Market
                                                Fund            Fund          Fund        Fund
                                            ------------    -----------     --------  ------------
<S>                                         <C>              <C>            <C>        <C>
Shares issued ............................     323,068       2,708,452(1)    584,104    2,816,850
Shares issued as reinvestment of dividends     581,747          24,359       175,301       75,749
Shares redeemed ..........................  (1,204,133)(2)      (2,426)     (144,108)    (625,078)
                                            ----------      ----------      --------   ----------
Net increase (decrease) ..................    (299,318)      2,730,385       615,297    2,267,521
                                            ==========      ==========      ========   ==========
</TABLE>

     As at December 31, 1999,  Mutual Of America Life Insurance  Company and its
subsidiaries  (affiliates  of the  Adviser)  were  shareholders  of each  fund's
outstanding shares as follows:

              All America Fund ..............................    86%
              Equity Index Fund .............................    92%
              Bond Fund .....................................    79%
              Money Market Fund .............................     5%

5. DIVIDENDS

     On December 31, 1999  dividend  distributions  were  declared and paid from
accumulated  net investment  income to  shareholders of record on June 29, 1999.
Pursuant to shareholders' instructions, substantially all dividend distributions
were  immediately  reinvested  in  additional  shares  of each  fund (see Note 4
above).

                                                                         Money
                               All America  Equity Index     Bond        Market
                                  Fund           Fund        Fund         Fund
                               ----------     ---------   ----------   ---------
Distributions from:
  Net investment income .....  $  313,199     $206,332    $1,688,057    $800,206
  Net realized capital gains    9,376,382       54,088        16,659        --
                               ----------     --------    ----------    --------
Total dividend distributions   $9,689,581     $260,420    $1,704,716    $800,206
                               ==========     ========    ==========    ========
Dividend amounts per share ..  $ 2.507365     $.097371    $  .686814    $.338572
                               ==========     ========    ==========    ========
----------------
(1) Includes the initial seed investment by Mutual of America Life Insurance
    Company of $25 million, represented by 2,500,000 shares.

(2) During February 1999, Mutual of America Life Insurance Company redeemed 1.1
    million shares realizing proceeds of approximately $16.6 million, reducing
    the Fund's net assets by a corresponding amount.


                                       55
<PAGE>

                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To the Board of Directors and Shareholders
  of Mutual of America Institutional Funds, Inc.:

      We have  audited the  accompanying  statement  of assets and  liabilities,
including  the  portfolio of  investments  in  securities,  of Mutual of America
Institutional Funds, Inc. comprising,  respectively,  the All America,  Bond and
Money  Market  Funds as of  December  31,  1999,  and the related  statement  of
operations for the year then ended,  the statements of changes in net assets for
each of the two years in the period then ended and the financial  highlights for
each of the four  years in the  period  then  ended.  We have also  audited  the
statement of assets and  liabilities,  including the portfolio of investments in
securities, of Mutual of America Institutional Funds, Inc. comprising the Equity
Index Fund as of  December  31, 1999 and the related  statement  of  operations,
statement of changes in net assets and the financial  highlights  for the period
May 3, 1999  (commencement  of operations) to December 31, 1999. These financial
statements  and financial  highlights  are the  responsibility  of the Company's
management.  Our  responsibility  is to express  an  opinion on these  financial
statements and financial highlights based on our audits.

      We conducted our audits in accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable  assurance  about  whether the  financial  statements  and  financial
highlights are free of material misstatement.  An audit includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements and financial  highlights.  Our procedures  included  confirmation of
securities owned as of December 31, 1999 by  correspondence  with the custodian.
An audit also includes assessing the accounting  principles used and significant
estimates  made by  management,  as well as  evaluating  the  overall  financial
statement  presentation.  We believe that our audits provide a reasonable  basis
for our opinion.

      In our opinion, the financial statements and financial highlights referred
to above present fairly, in all material respects, the financial position of the
All America,  Bond and Money Market Funds of Mutual America Institutional Funds,
Inc. as of December 31, 1999, the results of their  operations for the year then
ended,  the  changes in their net assets for each of the two years in the period
then  ended and their  financial  highlights  for each of the four  years in the
period then ended in conformity with generally accepted  accounting  principles.
Also, in our opinion, the financial statements and financial highlights referred
to above present fairly, in all material respects, the financial position of the
Equity Index Fund of Mutual of America  Institutional Funds, Inc. as of December
31,  1999,  and the  results  of its  operations,  changes in net assets and its
financial  highlights for the period May 3, 1999 (commencement of operations) to
December 31, 1999 in conformity with generally accepted accounting principles.

/s/ Arthur Andersen LLP
-----------------------

New York, New York
February 21, 2000


                                       56
<PAGE>

--------------------------------------------------------------------------------
                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                    320 PARK AVENUE, NEW YORK, NEW YORK 10022
--------------------------------------------------------------------------------

Dear Shareholder:

      We are  pleased to present  the  Mutual of  America  Institutional  Funds'
results for the six-month  period ending June 30, 2000. These funds are designed
primarily  as  investment   vehicles  for  endowments,   foundations  and  other
institutional investors.

      The U.S.  economy  remains  fundamentally  strong  at mid  year,  although
indications that it may be slowing have appeared. The Federal Reserve has raised
rates by a total of 1.75% in a little over a year, but should the economy indeed
lose steam,  the central  bankers may defer further rate  increases for the near
term as the risk of inflation  wanes.  The combination of a more relaxed economy
and slowing job growth has produced  Treasury  yields that are lower than at any
time since December.

      There was substantial volatility in the stock market during the first half
of this  year.  In the  second  quarter  the S&P 500  Index,  the NASDAQ and the
Russell 2000 declined.  Second  quarter  earnings,  however,  should reflect the
underlying strength in the U.S. and global economies.

                    Total Returns-Six Months to June 30, 2000

      The total  return  performance  of each Fund for the six months ended June
30, 2000 was as follows:

      All America Fund ..........................................   +4.7%
      Equity Index Fund .........................................   -0.5%
      Bond Fund .................................................   +2.4%
      MoneyMarket Fund ..........................................   +2.9%

      All performance is historical,  assumes  reinvestment of all dividends and
capital gains,  and is not indicative of future results.  Investment  return and
principal value will fluctuate,  so shares, when redeemed,  may be worth more or
less than when purchased.

      On the pages which immediately  follow are brief  presentations and graphs
for each Fund  (except  the Money  Market  Fund)  which  illustrate  each Fund's
respective:

o     Historical total return achieved over specified  periods,  expressed as an
      annual average rate and as a cumulative rate;

o     Equivalent  in  dollars  of  a  $10,000  hypothetical  investment  at  the
      beginning of each specified period; and

o     Historical  performance compared with an appropriate index.

      The portfolios of each Fund and financial  statements are presented in the
pages which then follow.

      Thank you for your continued investment in our Funds.

                                     Sincerely,

                                     /s/ Dolores Morrissey
                                     -----------------------
                                     Dolores Morrissey
                                     Chairman of the Board and President,
                                     Mutual of America Institutional Funds, Inc.


                                       57
<PAGE>

                                ALL AMERICA FUND

      The All America Fund's investment  objective is to outperform the Standard
& Poor's 500 Index.  The Fund is  approximately  60%  invested in the 500 stocks
that  comprise  the S&P 500,  while the  remaining  40% of the Fund is  actively
managed.  The  actively  managed  portion of the Fund  utilizes  four  different
investment approaches -- large cap growth, small cap growth, large cap value and
small cap value -- with each approach managing  approximately  equal portions of
the actively managed portion. Beginning in early 2000, approximately half of the
actively managed assets were managed by two subadvisors,  with Mutual of America
Capital  Management  Corporation  managing  the  remainder.   Previously,  three
subadvisors were retained to manage approximately three quarters of these active
assets.  The Fund's  return for the twelve  month period ended June 30, 2000 was
17.3%,  well in excess of the 7.2% return of its benchmark  index,  the S&P 500.
The Fund's twelve month  performance  reflected  investors'  continued quest for
growth   opportunities   --  both  the  large  and  small  cap  growth  portions
significantly outperformed the value segments. Nevertheless, the small cap value
segment performed strongly.  Only the large cap value portion turned in negative
performance.

[The following table depicts a line graph that appears in the document.]

                              ALL AMERICA
                                  FUND          S&P 500
---------------------------------------------------------
SEMI                             SINCE           SINCE
ANNUAL                         INCEPTION       INCEPTION
---------------------------------------------------------
05/96                            10,000           10,000
06/96                            10,103           10,301
06/97                            12,883           13,875
06/98                            15,882           18,060
06/99                            18,940           22,168
06/00                            22,225           23,773


----------------------------------------------------
                    All America Fund
                    ----------------
                                     Total Return
                                     ------------
 Period                 Growth
 Ended                    of       Cumu-     Annual
 6/30/00               $10,000     lative    Average
 ---------------------------------------------------
 1 Year                $11,734     17.3%     17.3%
 Since 5/1/96
   (Inception)         $22,225    122.2%     21.2%
----------------------------------------------------


----------------------------------------------------
                     S&P 500 Index
                     ------------
                                     Total Return
                                     ------------
 Period                 Growth
 Ended                    of       Cumu-     Annual
 6/30/00               $10,000     lative    Average
----------------------------------------------------
 1 Year                $10,724      7.2%      7.2%
 Since 5/1/96
   (Inception)         $23,773    137.7%     23.1%
----------------------------------------------------

The line  representing  the performance  return of the All America Fund includes
expenses,  such as transaction costs,  management fees and expenses, that reduce
returns, while the performance return line of the index does not.


                                       58
<PAGE>

                                EQUITY INDEX FUND

      The Equity Index Fund invests in the 500 stocks which comprise the S&P 500
Index.  The S&P Index is a market-value  weighted  index of 500 domestic  stocks
that are traded on the New York Stock  Exchange,  American  Stock  Exchange  and
NASDAQ National Market System.  The weightings make each company's  influence on
the Index's  performance  directly  proportional to that company's market value.
The  companies  included  in the Index tend to be industry  leaders.  The Fund's
performance for the twelve months ended June 30, 2000 was 6.8%, substantially in
line with the  benchmark's  return of 7.2%.  Technology  has continued to be the
dominant  theme,  with defensive  sectors such as utilities doing much better in
the past few months.  Price-earnings and price-to-book multiples have come under
some  pressure,  reflecting the Federal  Reserve's  attempts to slow the economy
through higher interest rates.

[The following table depicts a line graph that appears in the document.]

                              EQUITY INDEX
                                  FUND          S&P 500
---------------------------------------------------------
SEMI                             SINCE           SINCE
ANNUAL                         INCEPTION       INCEPTION
---------------------------------------------------------
05/99                            10,000          10,000
06/99                            10,145          10,306
06/00                            10,839          11,052


----------------------------------------------------
                  Equity Index Fund
                  -----------------
                                     Total Return
                                     ------------
 Period                 Growth
 Ended                    of       Cumu-     Annual
 6/30/00               $10,000     lative    Average
 ---------------------------------------------------
 1 Year                $10,684      6.8%      6.8%
 Since 5/3/99
 (Inception)           $10,839      8.4%      7.2%
----------------------------------------------------

----------------------------------------------------
                     S&P 500 Index
                     -------------
                                     Total Return
                                     ------------
 Period                 Growth
 Ended                    of       Cumu-     Annual
 6/30/00               $10,000     lative    Average
----------------------------------------------------
 1 Year                $10,724      7.2%      7.2%
 Since 5/3/99
 (Inception)           $11,052     10.5%      9.0%
----------------------------------------------------

The line  representing the performance  return of the Equity Index Fund includes
expenses,  such as transaction costs,  management fees and expenses, that reduce
returns, while the performance return line of the index does not.


                                       59
<PAGE>

                                MONEY MARKET FUND

      The Money Market Fund's  investment  objective is the  realization of high
current  income to the extent  consistent  with the  maintenance  of  liquidity,
investment  quality and stability of capital.  Through investing in high quality
commercial  paper and other short-term  instruments,  the Fund returned 5.5% for
the year ended 6/30/00.  Short-term rates rose substantially during this period,
as the Federal  Reserve  Board  raised the  Federal  Funds rate in an attempt to
quell prospective inflation.  The seven-day effective yield as of August 1, 2000
is 6.5%.  As with  all  performance  reporting,  this  yield is not  necessarily
indicative of future annual yields.

                                    BOND FUND

      The  Bond  Fund  seeks  a  high  level  of  return   consistent  with  the
preservation of capital through  investments in publicly traded debt securities.
The Fund primarily invests in corporate and U.S.  Government agency  securities,
which yield more than U.S.  Treasury issues.  The Fund's  benchmark,  the Lehman
Brothers  Government/Corporate  Index,  which  was  invested  over  50% in  U.S.
Government issues,  returned 4.3% over the past year. The Fund's overemphasis on
high yielding,  lower quality,  but primarily investment grade, longer corporate
bonds caused it to underperform this Index over the past twelve months.

[The following table depicts a line graph that appears in the document.]

                               BOND FUND        S&P 500
---------------------------------------------------------
SEMI                             SINCE           SINCE
ANNUAL                         INCEPTION       INCEPTION
---------------------------------------------------------
05/96                            10,000         10,000
06/96                            10,074         10,116
06/97                            10,748         10,900
06/98                            11,884         12,129
06/99                            12,116         12,457
06/00                            12,234         12,991

----------------------------------------------------
                       Bond Fund
                      -----------
                                     Total Return
                                     ------------
 Period                 Growth
 Ended                    of       Cumu-     Annual
 6/30/00               $10,000     lative    Average
 ---------------------------------------------------
 1 Year                $10,097      1.0%      1.0%
 Since 5/1/96
   (Inception)         $12,234     22.3%      5.0%
----------------------------------------------------


----------------------------------------------------
        Lehman Brothers Gov't./Corp. Bond Index
      ------------------------------------------
                                     Total Return
                                     ------------
 Period                 Growth
 Ended                    of      Cumu-      Annual
 6/30/00               $10,000    lative     Average
 ---------------------------------------------------
 1 Year                $10,429      4.3%      4.3%
 Since 5/1/96
   (Inception)         $12,991     29.9%      6.5%
----------------------------------------------------

The line representing the performance return of the Bond Fund includes expenses,
such as transaction  costs,  management fees and expenses,  that reduce returns,
while the performance return line of the index does not.


                                       60
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
                     PORTFOLIO OF INVESTMENTS IN SECURITIES
                            June 30, 2000 (Unaudited)

                                                              Shares      Value
                                                             -------    --------
INDEXED ASSETS:
COMMON STOCKS
   3Com Corp. ........................................        1,099     $ 63,330
   Abbott Laboratories ...............................        4,879      217,420
   Adaptec, Inc. .....................................          322        7,326
   ADC Telecommunications, Inc. ......................        1,067       89,495
   Adobe Systems, Inc. ...............................          383       49,790
   Advanced Micro Devices, Inc. ......................          484       37,389
   AES Corp. .........................................        1,348       61,503
   Aetna, Inc. .......................................          446       28,628
   Aflac, Inc. .......................................          844       38,771
   Agilent Technologies, Inc. ........................        1,432      105,610
   Air Products & Chemicals, Inc. ....................          729       22,462
   Alberto-Culver Co. ................................          178        5,440
   Albertson's, Inc. .................................        1,345       44,721
   Alcan Aluminum Ltd. ...............................          696       21,576
   ALCOA, Inc. .......................................        2,746       79,634
   Allegheny Technologies, Inc. ......................          298        5,364
   Allergan, Inc. ....................................          417       31,067
   Allied Waste Industries, Inc. .....................          599        5,990
   Allstate Corp. ....................................        2,355       52,399
   Alltel Corp. ......................................          997       61,752
   Altera Corp. ......................................          630       64,221
   Alza Corp. ........................................          325       19,216
   Amerada Hess Corp. ................................          289       17,846
   Ameren Corp. ......................................          435       14,681
   America Online, Inc. ..............................        7,266      383,282
   American Electric Power, Inc. .....................        1,022       30,277
   American Express Co. ..............................        4,225      220,228
   American General Corp. ............................          784       47,824
   American Greetings Corp. Cl A .....................          206        3,914
   American Home Products Corp. ......................        4,125      242,344
   American Int'l. Group, Inc. .......................        4,875      572,813
   American Power Conversion .........................          600       24,488
   Amgen, Inc. .......................................        3,242      227,751
   AMR Corp. .........................................          471       12,452
   Amsouth Bancorporation ............................        1,242       19,562
   Anadarko Petroleum Corp. ..........................          406       20,021
   Analog Devices, Inc. ..............................        1,119       85,044
   Andrew Corp. ......................................          263        8,827
   Anheuser-Busch Cos., Inc. .........................        1,429      106,728
   Aon Corp. .........................................          815       25,316
   Apache Corp. ......................................          362       21,290
   Apple Computer, Inc. ..............................        1,020       53,423
   Applied Materials, Inc. ...........................        2,554      231,456
   Archer-Daniels-Midland Co. ........................        1,932       18,958
   Armstrong Holdings, Inc. ..........................          127        1,945
   Ashland, Inc. .....................................          231        8,099
   Associates First Capital Corp. ....................        2,311       51,564
   AT&T Corp. ........................................       11,875      375,545
   Autodesk, Inc. ....................................          193        6,695
   Automatic Data Processing, Inc. ...................        1,976      105,840
   AutoZone, Inc. ....................................          423        9,306
   Avery Dennison Corp. ..............................          357       23,964
   Avon Products, Inc. ...............................          770       34,265
   Baker Hughes, Inc. ................................        1,046       33,472
   Ball Corp. ........................................           97        3,122
   Bank of America Corp. .............................        5,241      225,363
   Bank of New York Co., Inc. ........................        2,337      108,671
   Bank One Corp. ....................................        3,640       96,688
   Bard (C.R.), Inc. .................................          162        7,796
   Barrick Gold Corp. ................................        1,251       22,753
   Bausch & Lomb, Inc. ...............................          168       12,999
   Baxter International, Inc. ........................          924       64,969
   BB & T Corp. ......................................        1,103       26,334
   Bear Stearns Cos., Inc. ...........................          350       14,569
   Becton Dickinson & Co. ............................          793       22,749
   Bed Bath & Beyond, Inc. ...........................          444       16,095
   BellSouth Corp. ...................................        5,950      253,619
   Bemis Co. .........................................          166        5,582
   Best Buy Co., Inc. ................................          653       41,302
   Bestfoods .........................................          868       60,109
   Bethlehem Steel Corp. .............................          417        1,486
   Biogen, Inc. ......................................          477       30,767
   Biomet, Inc. ......................................          359       13,799
   Black & Decker Corp. ..............................          276       10,850
   Block (H. & R.), Inc. .............................          310       10,036
   BMC Software, Inc. ................................          767       27,984
   Boeing Co. ........................................        2,869      119,960
   Boise Cascade Corp. ...............................          182        4,709
   Boston Scientific Corp. ...........................        1,316       28,870
   Briggs & Stratton Corp. ...........................           74        2,535
   Bristol-Myers Squibb Co. ..........................        6,238      363,364
   Broadcom Corp. Cl A ...............................          650      142,309
   Brown-Forman Corp. Cl B ...........................          217       11,664
   Brunswick Corp. ...................................          292        4,836
   Burlington Northern Santa Fe ......................        1,354       31,057
   Burlington Resources, Inc. ........................          690       26,393
   Cabletron Systems, Inc. ...........................          570       14,393
   Campbell Soup Co. .................................        1,360       39,610
   Capital One Financial Corp. .......................          627       27,980
   Cardinal Health, Inc. .............................          871       64,454
   Carnival Corp. ....................................        1,912       37,284
   Caterpillar, Inc. .................................        1,129       38,245
   Cendant Corp. .....................................        2,263       31,682
   Centex Corp. ......................................          188        4,418
   CenturyTel, Inc. ..................................          443       12,736
   Ceridian Corp. ....................................          460       11,069
   Charles Schwab Corp. ..............................        4,306      144,789
   Charter One Financial, Inc. .......................          663       15,249
   Chase Manhattan Corp. .............................        3,926      180,818
   Chevron Corp. .....................................        2,062      174,883
   Chubb Corp. .......................................          559       34,379
   CIGNA Corp. .......................................          515       48,153
   Cincinnati Financial Corp. ........................          521       16,379
   CINergy Corp. .....................................          505       12,846
   Circuit City Group, Inc. ..........................          645       21,406
   Cisco Systems, Inc. ...............................       21,999    1,398,311
   Citigroup, Inc. ...................................       10,673      643,048
   Citrix Systems, Inc. ..............................          570       10,794
   Clear Channel Communications ......................        1,074       80,550
   Clorox Co. ........................................          750       33,609
   CMS Energy Corp. ..................................          368        8,142
   Coastal Corp. .....................................          679       41,334
   Coca-Cola Co. .....................................        7,838      450,195
   Coca-Cola Enterprises, Inc. .......................        1,350       22,022
   Colgate-Palmolive Co. .............................        1,824      109,212
   Columbia Energy Group .............................          259       16,997
   Comcast Corp. Cl A ................................        2,839      114,980
   Comerica, Inc. ....................................          497       22,303
   Compaq Computer Corp. .............................        5,402      138,089
   Computer Associates Intl., Inc. ...................        1,862       95,311
   Computer Sciences Corp. ...........................          528       39,435
   Compuware Corp. ...................................        1,132       11,745
   Comverse Technology Inc. ..........................          484       45,012
   Conagra, Inc. .....................................        1,563       29,795
   Conexant Systems, Inc. ............................          687       33,405
   Conoco, Inc. ......................................        1,988       48,830
   Conseco, Inc. .....................................        1,039       10,130
   Consolidated Edison, Inc. .........................          670       19,849
   Consolidated Stores Corp. .........................          352        4,224
   Constellation Energy Group ........................          474       15,435

   The accompanying notes are an integral part of these financial statements.


                                       61
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                            June 30, 2000 (Unaudited)

                                                              Shares     Value
                                                             -------   ---------
INDEXED ASSETS (CONTINUED):
COMMON STOCKS (CONTINUED)
   Convergys Corp. .........................................    500   $   25,938
   Cooper Industries, Inc. .................................    300        9,769
   Cooper Tire & Rubber Co. ................................    242        2,692
   Coors (Adolph) Co. Cl B .................................    118        7,139
   Corning, Inc. ...........................................    872      235,331
   Costco Wholesale Corp. ..................................  1,407       46,431
   Countrywide Credit Industries ...........................    359       10,882
   CP&L Energy, Inc. (Holding Co) ..........................    508       16,224
   Crane Co. ...............................................    209        5,081
   Crown Cork & Seal, Inc. .................................    411        6,165
   CSX Corp. ...............................................    693       14,683
   Cummins Engine Co., Inc. ................................    132        3,597
   CVS Corp. ...............................................  1,244       49,760
   Dana Corp. ..............................................    523       11,081
   Danaher Corp. ...........................................    452       22,346
   Darden Restaurants, Inc. ................................    422        6,858
   Deere & Co. .............................................    741       27,417
   Dell Computer Corp. .....................................  8,129      400,861
   Delphi Automotive Systems Corp. .........................  1,793       26,111
   Delta Air Lines, Inc. ...................................    387       19,568
   Deluxe Corp. ............................................    232        5,467
   Dillard's Inc. Cl A .....................................    345        4,226
   Disney (Walt) Co. .......................................  6,571      255,037
   Dollar General Corp. ....................................  1,057       20,612
   Dominion Resources, Inc. ................................    753       32,285
   Donnelley (R.R.) & Sons Co. .............................    401        9,048
   Dover Corp. .............................................    646       26,203
   Dow Chemical Co. ........................................  2,139       64,571
   Dow Jones & Co., Inc. ...................................    284       20,803
   DTE Energy Co. ..........................................    461       14,089
   Du Pont (E.I.) de Nemours & Co ..........................  3,315      145,031
   Duke Energy Corp. .......................................  1,161       65,451
   Dun & Bradstreet Corp. ..................................    511       14,627
   Eastern Enterprises .....................................     86        5,418
   Eastman Chemical Co. ....................................    250       11,938
   Eastman Kodak Co. .......................................    980       58,310
   Eaton Corp. .............................................    234       15,678
   Ecolab, Inc. ............................................    412       16,094
   Edison International ....................................  1,051       21,546
   El Paso Energy Corp. ....................................    724       36,879
   Electronic Data Systems Corp. ...........................  1,494       61,628
   EMC Corp. ...............................................  6,862      527,945
   Emerson Electric Co. ....................................  1,349       81,446
   Engelhard Corp. .........................................    399        6,808
   Enron Corp. .............................................  2,315      149,318
   Entergy Corp. ...........................................    727       19,765
   Equifax, Inc. ...........................................    449       11,786
   Exxon Mobil Corp. ....................................... 11,009      864,207
   Fannie Mae ..............................................  3,186      166,269
   Federated Department Stores .............................    666       22,478
   FedEx Corp. .............................................    917       34,846
   Fifth Third Bancorp .....................................    979       61,922
   First Data Corp. ........................................  1,304       64,711
   First Union Corp. .......................................  3,135       77,787
   Firstar Corp. ...........................................  3,068       64,620
   FirstEnergy Corp. .......................................    739       17,274
   FleetBoston Financial Corp. .............................  2,850       96,900
   Florida Progress Corp. ..................................    312       14,625
   Fluor Corp. .............................................    242        7,653
   FMC Corp. ...............................................     97        5,626
   Ford Motor Co. ..........................................  3,833      164,819
   Fort James Corp. ........................................    687       15,887
   Fortune Brands, Inc. ....................................    520       11,993
   FPL Group, Inc. .........................................    570       28,215
   Franklin Resources, Inc. ................................    770       23,389
   Freddie Mac .............................................  2,207       89,384
   Freeport-McMoran Copper Cl B ............................    518        4,792
   Gannett Co., Inc. .......................................    843       50,422
   Gap, Inc. ...............................................  2,691       84,094
   Gateway, Inc. ...........................................  1,004       56,977
   General Dynamics Corp. ..................................    638       33,336
   General Electric Co. .................................... 31,288    1,658,264
   General Mills, Inc. .....................................    922       35,267
   General Motors Corp. ....................................  1,692       98,242
   Genuine Parts Co. .......................................    565       11,300
   Georgia-Pacific Group ...................................    544       14,280
   Gillette Co. ............................................  3,301      115,329
   Global Crossing Ltd. ....................................  2,786       73,307
   Golden West Financial Corp. .............................    513       20,937
   Goodrich (B.F.) Co. .....................................    350       11,922
   Goodyear Tire & Rubber Co. ..............................    497        9,940
   GPU, Inc. ...............................................    392       10,609
   Grainger (W.W.), Inc. ...................................    297        9,151
   Great Atlantic & Pac. Tea, Inc. .........................    123        2,045
   Great Lakes Chemical Corp. ..............................    183        5,765
   GTE Corp. ...............................................  3,045      189,551
   Guidant Corp. ...........................................    976       48,312
   Halliburton Co. .........................................  1,402       66,157
   Harcourt General, Inc. ..................................    226       12,289
   Harley-Davidson, Inc. ...................................    962       37,037
   Harrah's Entertainment, Inc. ............................    408        8,543
   Hartford Financial Svs Gp, Inc. .........................    680       38,038
   Hasbro, Inc. ............................................    544        8,194
   HCA - The Healthcare Company ............................  1,788       54,311
   HealthSouth Corp. .......................................  1,226        8,812
   Heinz (H.J.) Co. ........................................  1,114       48,738
   Hercules, Inc. ..........................................    338        4,753
   Hershey Food Corp. ......................................    440       21,340
   Hewlett-Packard Co. .....................................  3,163      394,980
   Hilton Hotels Corp. .....................................  1,170       10,969
   Home Depot, Inc. ........................................  7,306      364,843
   Homestake Mining Co. ....................................    826        5,679
   Honeywell International, Inc. ...........................  2,513       84,657
   Household International, Inc. ...........................  1,492       62,011
   Humana, Inc. ............................................    532        2,594
   Huntington Bancshares, Inc. .............................    730       11,543
   Illinois Tool Works, Inc. ...............................    955       54,435
   IMS Health, Inc. ........................................    978       17,604
   Inco Ltd. ...............................................    609        9,363
   Ingersoll Rand Co. ......................................    520       20,930
   Intel Corp. ............................................. 10,591    1,415,884
   International Paper Co. .................................  1,529       45,583
   Interpublic Group of Cos., Inc. .........................    954       41,022
   Intl. Business Machines Corp. ...........................  5,607      614,317
   Intl. Flavors & Fragrances ..............................    334       10,083
   ITT Industries, Inc. ....................................    279        8,475
   Jefferson-Pilot Corp. ...................................    333       18,794
   Johnson & Johnson .......................................  4,399      448,148
   Johnson Controls, Inc. ..................................    271       13,906
   Kansas City Southern Inds ...............................    351       31,129
   Kaufman & Broad Home Corp. ..............................    152        3,012
   Kellogg Co. .............................................  1,286       38,259
   Kerr-McGee Corp. ........................................    297       17,504
   KeyCorp .................................................  1,420       25,028
   Kimberly Clark Corp. ....................................  1,757      100,808
   KLA Tencor Corp. ........................................    588       34,435
   Kmart Corp. .............................................  1,576       10,737
   Knight-Ridder, Inc. .....................................    246       13,084

   The accompanying notes are an integral part of these financial statements.


                                       62
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                            June 30, 2000 (Unaudited)

                                                              Shares     Value
                                                             -------  ----------
INDEXED ASSETS (CONTINUED):
COMMON STOCKS (CONTINUED)
   Kohl's Corp. ............................................  1,035   $   57,572
   Kroger Co. ..............................................  2,637       58,179
   Legget & Platt ..........................................    623       10,280
   Lehman Brothers Holdings, Inc. ..........................    381       36,028
   Lexmark Int'l Inc. ......................................    406       27,304
   Lilly (Eli) & Co. .......................................  3,572      356,754
   Limited, Inc. ...........................................  1,364       29,497
   Lincoln National Corp. ..................................    620       22,398
   Linear Technology Corp. .................................    982       62,787
   Liz Claiborne, Inc. .....................................    188        6,627
   Lockheed Martin Corp. ...................................  1,257       31,189
   Loews Corp. .............................................    312       18,720
   Longs Drug Stores Corp. .................................    125        2,719
   Louisiana-Pacific Corp. .................................    339        3,687
   Lowe's Companies, Inc. ..................................  1,213       49,809
   LSI Logic Corp. .........................................    971       52,555
   Lucent Technologies ..................................... 10,298      610,157
   Mallinckrodt, Inc. ......................................    223        9,687
   Manor Care, Inc. ........................................    328        2,296
   Marriott International, Inc. ............................    758       27,335
   Marsh & McLennan Cos., Inc. .............................    848       88,563
   Masco Corp. .............................................  1,419       25,631
   Mattel, Inc. ............................................  1,336       17,619
   Maxim Integrated Products, Inc. .........................    898       61,008
   May Department Stores Co. ...............................  1,063       25,512
   Maytag Corp. ............................................    268        9,883
   MBIA, Inc. ..............................................    317       15,275
   MBNA Corp. ..............................................  2,545       69,033
   McDermott International, Inc. ...........................    189        1,666
   McDonald's Corp. ........................................  4,226      139,194
   McGraw-Hill Cos., Inc. ..................................    622       33,588
   McKesson HBOC, Inc. .....................................    893       18,697
   Mead Corp. ..............................................    326        8,232
   Medimmune, Inc. .........................................    660       48,840
   Medtronic, Inc. .........................................  3,794      188,989
   Mellon Financial Corp. ..................................  1,553       56,587
   Merck & Co., Inc. .......................................  7,272      557,217
   Mercury Interactive Corp. ...............................    240       23,220
   Meredith Corp. ..........................................    165        5,569
   Merrill Lynch & Co., Inc. ...............................  1,227      141,105
   MGIC Investment Corp. ...................................    336       15,288
   Micron Technology, Inc. .................................  1,755      154,550
   Microsoft Corp. ......................................... 16,642    1,331,319
   Millipore Corp. .........................................    144       10,854
   Minnesota Mining & Mfg. Co. .............................  1,252      103,290
   Molex Inc., Cl A ........................................    622       29,934
   Morgan (J.P.) & Co., Inc. ...............................    513       56,494
   Morgan Stanley Dean Witter ..............................  3,579      297,952
   Motorola, Inc. ..........................................  6,806      197,799
   Nabisco Group Holdings ..................................  1,035       26,845
   National City Corp. .....................................  1,957       33,391
   National Semiconductor Corp. ............................    544       30,872
   National Service Industries .............................    130        2,535
   Navistar International Corp. ............................    203        6,306
   NCR Corp. ...............................................    307       11,954
   Network Appliance, Inc. .................................    963       77,522
   New Century Energies, Inc. ..............................    367       11,010
   New York Times Co. Cl A .................................    544       21,488
   Newell Rubbermaid, Inc. .................................    843       21,707
   Newmont Mining Corp. ....................................    532       11,505
   Nextel Communications, Inc. .............................  2,398      146,728
   Niagara Mohawk Holdings, Inc. ...........................    608        8,474
   Nicor, Inc. .............................................    150        4,894
   Nike, Inc. Cl B .........................................    865       34,438
   Nordstrom, Inc. .........................................    445       10,736
   Norfolk Southern Corp. ..................................  1,206       17,939
   Nortel Networks Corp. Holding ...........................  9,368      639,366
   Northern States Power Co. ...............................    492        9,932
   Northern Trust Corp. ....................................    706       45,934
   Northrop Grumman Corp. ..................................    221       14,641
   Novell, Inc. ............................................  1,066        9,861
   Novellus Systems, Inc. ..................................    413       23,360
   Nucor Corp. .............................................    276        9,160
   Occidental Petroleum Corp. ..............................  1,166       24,559
   Office Depot, Inc. ......................................  1,044        6,525
   Old Kent Financial Corp. ................................    435       11,628
   Omnicom Group, Inc. .....................................    563       50,142
   Oneok, Inc. .............................................    101        2,620
   Oracle Corp. ............................................  8,977      754,629
   Owens Corning ...........................................    175        1,619
   Owens-Illinois, Inc. ....................................    477        5,575
   Paccar, Inc. ............................................    250        9,922
   Pactiv Corp. ............................................    544        4,284
   Paine Webber Group, Inc. ................................    453       20,612
   Pall Corp. ..............................................    396        7,326
   Parametric Technology Corp. .............................    847        9,317
   Parker Hannifin Corp. ...................................    356       12,193
   Paychex, Inc. ...........................................  1,173       49,266
   PE Corp-PE Biosystems Group .............................    656       43,214
   Peco Energy Co. .........................................    536       21,608
   Penney (J.C.) Co., Inc. .................................    826       15,229
   Peoples Energy Corp. ....................................    113        3,658
   Peoplesoft, Inc. ........................................    852       14,271
   PepsiCo, Inc. ...........................................  4,557      202,502
   Perkin Elmer, Inc. ......................................    145        9,588
   Pfizer, Inc. ............................................ 19,907      955,536
   PG & E Corp. ............................................  1,219       30,018
   Pharmacia Corp. .........................................  4,014      207,474
   Phelps Dodge Corp. ......................................    258        9,595
   Phillip Morris Cos., Inc. ...............................  7,232      192,100
   Phillips Petroleum Co. ..................................    805       40,803
   Pinnacle West Capital Corp. .............................    269        9,112
   Pitney Bowes, Inc. ......................................    815       32,600
   Placer Dome, Inc. .......................................  1,034        9,888
   PNC Financial Services Group ............................    932       43,688
   Polaroid Corp. ..........................................    141        2,547
   Potlatch Corp. ..........................................     92        3,048
   PPG Industries, Inc. ....................................    552       24,461
   PPL Corporation .........................................    457       10,025
   Praxair, Inc. ...........................................    505       18,906
   Price (T. Rowe) Associates ..............................    380       16,150
   Proctor & Gamble Co. ....................................  4,136      236,786
   Progressive Corp. of Ohio ...............................    233       17,242
   Providian Financial Corp. ...............................    451       40,590
   Public Svc. Enterprise Group ............................    694       24,030
   Pulte Corp. .............................................    138        2,984
   Quaker Oats Co. .........................................    425       31,928
   Qualcomm, Inc. ..........................................  2,332      139,920
   Quintiles Transnational Corp. ...........................    365        5,156
   Radioshack Corp. ........................................    590       27,951
   Ralston Purina Co. ......................................    973       19,399
   Raytheon Co. ............................................  1,074       20,675
   Reebok International Ltd. ...............................    178        2,837
   Regions Financial Corp. .................................    694       13,793
   Reliant Energy, Inc. ....................................    939       27,759
   Rite-Aid Corp. ..........................................    822        5,394
   Rockwell Intl., Corp. ...................................    605       19,058
   Rohm Haas Co. ...........................................    695       23,978

   The accompanying notes are an integral part of these financial statements.


                                       63
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                            June 30, 2000 (Unaudited)

                                                              Shares     Value
                                                             -------  ----------
INDEXED ASSETS (CONTINUED):
COMMON STOCKS (CONTINUED)
    Rowan Cos., Inc. .......................................    292   $    8,870
    Royal Dutch Petroleum Co. N.Y ..........................  6,781      417,455
    Russell Corp. ..........................................    105        2,100
    Ryder System, Inc. .....................................    211        3,996
    Sabre Group Holdings, Inc. .............................    410       11,685
    Safeco Corp. ...........................................    413        8,208
    Safeway, Inc. ..........................................  1,570       70,846
    Sanmina Corp. ..........................................    470       40,185
    Sapient Corp. ..........................................    180       19,249
    Sara Lee Corp. .........................................  2,750       53,109
    SBC Communications, Inc. ............................... 10,758      465,284
    Schering-Plough Corp. ..................................  4,630      233,815
    Schlumberger, Ltd. .....................................  1,800      134,325
    Scientific-Atlanta, Inc. ...............................    499       37,176
    Seagate Technology .....................................    719       39,545
    Seagram Co. Ltd. (The) .................................  1,376       79,808
    Sealed Air Corp. New ...................................    265       13,879
    Sears Roebuck & Co. ....................................  1,115       36,377
    Sempra Energy ..........................................    649       11,033
    Sherwin-Williams Co. ...................................    526       11,145
    Siebel Systems, Inc. ...................................    631      103,208
    Sigma-Aldrich Corp. ....................................    270        7,898
    SLM Holding Corp. ......................................    505       18,906
    Snap-On, Inc. ..........................................    186        4,952
    Solectron Corp. ........................................  1,886       78,976
    Southern Co. ...........................................  2,051       47,814
    Southtrust Corp. .......................................    533       12,059
    Southwest Airlines Co. .................................  1,601       30,319
    Springs Industries, Inc. Cl A ..........................     58        1,867
    Sprint Corp. (FON Group) ...............................  2,766      141,066
    Sprint Corp. (PCS Group) ...............................  2,894      172,193
    St. Jude Medical, Inc. .................................    268       12,295
    St. Paul Companies, Inc. ...............................    671       22,898
    Stanley Works ..........................................    284        6,745
    Staples, Inc. ..........................................  1,532       23,555
    Starbucks Corp. ........................................    580       22,149
    State Street Corp. .....................................    508       53,880
    Summit Bancorp .........................................    555       13,667
    Sun Microsystems, Inc. .................................  5,017      456,233
    Sunoco, Inc. ...........................................    286        8,419
    Suntrust Banks, Inc. ...................................    956       43,677
    Supervalu, Inc. ........................................    443        8,445
    Synovus Financial Corp. ................................    888       15,651
    Sysco Corp. ............................................  1,045       44,021
    Target Corp. ...........................................  1,442       83,636
    Tektronix, Inc. ........................................    149       11,026
    Tellabs, Inc. ..........................................  1,295       88,627
    Temple-Inland, Inc. ....................................    178        7,476
    Tenet Healthcare Corp. .................................    988       26,676
    Teradyne, Inc. .........................................    544       39,984
    Texaco, Inc. ...........................................  1,756       93,507
    Texas Instruments, Inc. ................................  5,175      355,458
    Textron, Inc. ..........................................    472       25,636
    Thermo Electron Corp. ..................................    503       10,594
    Thomas & Betts Corp. ...................................    185        3,538
    Tiffany & Co. ..........................................    230       15,525
    Time Warner, Inc. ......................................  4,161      316,236
    Timken Co. .............................................    196        3,651
    TJX Companies, Inc. ....................................    984       18,450
    Torchmark Corp. ........................................    417       10,295
    Tosco Corp. ............................................    456       12,911
    Toys R Us, Inc. ........................................    684        9,961
    Transocean Sedco Forex, Inc. ...........................    656       35,055
    Tribune Co. ............................................    976       34,143
    Tricon Global Restaurants Inc. .........................    490       13,843
    TRW, Inc. ..............................................    386       16,743
    Tupperware Corp. .......................................    183        4,026
    TXU Corp. ..............................................    834       24,603
    Tyco International Ltd. ................................  5,356      253,741
    U.S. Bancorp ...........................................  2,378       45,777
    U.S. West, Inc. ........................................  1,603      137,457
    Unicom Corp. ...........................................    562       21,742
    Unilever N.V ...........................................  1,814       78,002
    Union Carbide Corp. ....................................    425       21,038
    Union Pacific Corp. ....................................    789       29,341
    Union Pacific Resources Group ..........................    801       17,622
    Union Planters Corp. ...................................    448       12,516
    Unisys Corp. ...........................................    983       14,315
    United Technologies Corp. ..............................  1,488       87,606
    UnitedHealth Group Inc. ................................    514       44,076
    Unocal Corp. ...........................................    770       25,506
    UNUMProvident Corp. ....................................    762       15,288
    US Airways Group Inc. ..................................    227        8,853
    UST, Inc. ..............................................    544        7,990
    USX-Marathon Group .....................................    986       24,712
    USX-U.S. Steel Group ...................................    281        5,216
    V F Corp. ..............................................    375        8,930
    Veritas Software Corp. .................................  1,236      139,687
    Verizon Communications .................................  4,888      248,371
    Viacom, Inc. Cl B ......................................  4,836      329,755
    Visteon Corp. ..........................................    412        4,994
    Vulcan Materials Co. ...................................    318       13,575
    W.R. Grace & Co. .......................................    229        2,777
    Wachovia Corp. .........................................    643       34,883
    Walgreen Co. ...........................................  3,180      102,356
    Wal-Mart Stores, Inc. .................................. 14,095      812,224
    Washington Mutual, Inc. ................................  1,732       50,012
    Waste Management, Inc. .................................  1,967       37,373
    Watson Pharmaceuticals, Inc. ...........................    305       16,394
    Wellpoint Health Networks Inc. .........................    203       14,705
    Wells Fargo & Company ..................................  5,095      197,431
    Wendy's International, Inc. ............................    380        6,769
    Westvaco Corp. .........................................    318        7,890
    Weyerhaeuser Co. .......................................    745       32,035
    Whirlpool Corp. ........................................    237       11,050
    Willamette Industries, Inc. ............................    355        9,674
    Williams Cos., Inc. ....................................  1,380       57,529
    Winn-Dixie Stores, Inc. ................................    475        6,798
    WorldCom Inc. ..........................................  9,054      415,352
    Worthington Industries, Inc. ...........................    284        2,982
    Wrigley (Wm.) Jr. Co. ..................................    368       29,509
    Xerox Corp. ............................................  2,108       43,741
    Xilinx, Inc. ...........................................  1,009       83,306
    Yahoo!, Inc. ...........................................  1,718      212,817
    Young & Rubicam, Inc. ..................................    222       12,696
                                                                      ----------
TOTAL INDEXED ASSETS--COMMON STOCKS
(Cost: $29,104,973) 57.5% ..................................          39,695,411
                                                                      ==========

   The accompanying notes are an integral part of these financial statements.


                                       64
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                         June 30, 2000 (Unaudited) Face


                                      Rate    Maturity     Amount        Value
                                    --------  ---------   --------     ---------
INDEXED ASSETS (CONTINUED):
U. S. GOVERNMENT (0.1%)
  U.S. Treasury Bill (a) ...........  5.54%    07/27/00   $ 50,000   $    49,798
                                                                     -----------
COMMERCIAL PAPER (1.2%)
  SBC Communications, Inc. .........  6.83     07/03/00    815,000       814,691
                                                                     -----------
TOTAL SHORT-TERM DEBT SECURITIES
  (Cost: $864,489) 1.3% ..........................................       864,489
                                                                     -----------
TOTAL INDEXED ASSETS
  (Cost: $29,969,462) 58.8% ......................................   $40,559,900
                                                                     ===========
---------------
FUTURES CONTRACTS OUTSTANDING AS OF JUNE 30, 2000:

<TABLE>
<CAPTION>

                                                       Expiration     Underlying Face   Unrealized
                                                          Date        Amount at Value      Gain
                                                       -----------    ---------------   ----------
<S>                                                   <C>                <C>              <C>
 PURCHASED

   2 S&P 500 Stock Index Futures Contracts .......... September 2000     $734,050         $1,200
                                                                         =========        ======
</TABLE>

Face  value of  futures  purchased  and  outstanding  as a  percentage  of total
investments in securities: 1.1%.

-------------
(a) This security,  or a portion  thereof,  has been segregated to cover initial
    margin requirements on open futures contracts.

   The accompanying notes are an integral part of these financial statements.


                                       65
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                            June 30, 2000 (Unaudited)

                                                          Shares         Value
                                                         -------      ----------
ACTIVE ASSETS:
COMMON STOCKS
BASIC MATERIALS (0.4%)
   Alcan Aluminum Ltd. .............................      1,840       $   57,040
   Millenium Chemical, Inc. ........................      4,240           72,080
   Eastman Chemical Co. ............................      1,620           77,355
   Newmont Mining Corp. ............................      2,850           61,631
                                                                      ----------
                                                                         268,106
                                                                      ----------
CONSUMER, CYCLICAL (3.1%)
   AT&T Corp - Liberty Media-`A'* ..................      4,190          101,608
   Bed Bath & Beyond, Inc.* ........................      1,300           47,125
   BJ Services Co.* ................................      1,500           93,750
   BJ's Wholesale Club, Inc.* ......................      2,950           97,350
   CNET Networks, Inc.* ............................      4,000           98,250
   Cox Radio, Inc.* ................................      3,300           92,400
   CVS Corp. .......................................      5,330          213,200
   Disney (Walt) Co. ...............................      5,450          211,528
   Harrah's Entertainment, Inc.* ...................      4,060           85,006
   Gallagher (Arthur J.) & Co. .....................      4,420          185,640
   Marriott International, Inc. ....................      2,340           84,386
   Michaels Stores, Inc.* ..........................      1,500           68,719
   New York Times Co. Cl A .........................      1,550           61,225
   Outback Steakhouse, Inc.* .......................      2,500           73,125
   Radio One, Inc. Cl D* ...........................      2,160           47,655
   Reebok International Ltd.* ......................      5,930           94,509
   Trex, Inc.* .....................................      3,700          185,000
   Viacom, Inc. Cl B* ..............................      3,070          209,336
   Young & Rubicam, Inc. ...........................      1,800          102,938
                                                                      ----------
                                                                       2,152,750
                                                                      ----------
CONSUMER, NON-CYCLICAL (0.9%)
   Alberto-Culver Co. ..............................      2,890           88,326
   Anheuser-Busch Cos., Inc. .......................      1,090           81,409
   Hershey Food Corp. ..............................      1,710           82,935
   Kroger Co.* .....................................      7,840          172,970
   Safeway, Inc.* ..................................      4,210          189,976
                                                                      ----------
                                                                         615,616
                                                                      ----------
ENERGY (3.9%)
   Anadarko Petroleum Corp. ........................        230           11,342
   Core Laboratories N.V.* .........................      4,950          143,550
   Devon Energy Corp. ..............................        230           12,923
   Enron Corp. .....................................        200           12,900
   Grey Wolf Inc.* .................................     15,650           78,250
   Kerr-McGee Corp. ................................      2,590          152,648
   Kinder Morgan, Inc. .............................      7,360          254,380
   Lyondell Petrochemical Co. ......................      4,560           76,380
   Midcoast Energy Res., Inc. ......................      3,050           48,038
   Murphy Oil Corp. ................................      3,080          183,068
   NewField Exploration Company* ...................      3,840          150,240
   Occidental Petroleum Corp. ......................      6,530          137,538
   Ocean Energy, Inc.* .............................     20,060          284,601
   Precision Drilling Corp.* .......................      4,330          167,246
   Pride International, Inc.* ......................      5,115          126,596
   Quanta Services, Inc.* ..........................      1,675           92,125
   R & B Falcon Corp.* .............................      6,180          145,616
   Rowan Cos., Inc.* ...............................      7,540          229,028
   Schlumberger, Ltd. ..............................      1,380          102,983
   Stone Energy Corp.* .............................      3,410          203,748
   Transocean Sedco Forex, Inc. ....................      1,550           82,828
                                                                      ----------
                                                                       2,696,028
                                                                      ----------
FINANCIAL (6.0%)
   Ace, Ltd. .......................................      6,060          169,680
   American Express Co. ............................      1,900           99,038
   American Int'l. Group, Inc. .....................      2,200          258,500
   Apartment Investment & Mgmt. Co. ................      2,280           98,610
   Arden Realty Group ..............................      3,250           76,375
   Bank of America Corp. ...........................      2,100           90,300
   Bank of New York Co., Inc. ......................      4,390          204,135
   Boston Properties ...............................      4,330          167,246
   Chubb Corp. .....................................      1,220           75,030
   Citigroup, Inc. .................................     11,900          716,975
   Equity Res. Pptys. Tr. Co. ......................      3,380          155,480
   FleetBoston Financial Corp. .....................      5,410          183,940
   HCC Insurance Holdings, Inc. ....................      5,020           94,753
   Hilb, Rogal & Hamilton Co. ......................      4,790          166,153
   Home Properties Inc. ............................      3,470          104,100
   Kimco Realty Corp. ..............................      3,830          157,030
   Marsh & McLennan Cos., Inc. .....................      2,040          213,053
   Mellon Financial Corp. ..........................      3,480          126,803
   Morgan Stanley Dean Witter ......................      2,900          241,425
   Mutual Risk Management Ltd. .....................      9,280          160,660
   SL Green Realty Corp. ...........................      5,960          159,430
   Spieker Properties, Inc. ........................      3,280          154,980
   St. Paul Companies, Inc. ........................      2,340           79,853
   Vornado Realty Trust ............................      2,210           76,798
   XL Capital Limited ..............................      2,890          156,421
                                                                      ----------
                                                                       4,186,768
                                                                      ----------
HEALTHCARE (4.0%)
   Alza Corp.* .....................................      2,800          165,550
   Bristol-Myers Squibb Co. ........................      1,680           97,860
   Celgene Corp.* ..................................      2,300          135,413
   Forest Laboratories, Inc.* ......................      3,000          303,000
   HCA - The Healthcare Company ....................      6,680          202,905
   IDEC Pharmaceuticals Corp.* .....................        700           82,119
   King Pharmaceuticals Inc.* ......................      5,100          223,763
   Lifepoint Hospitals Inc.* .......................      6,800          151,300
   Lilly (Eli) & Co. ...............................      1,100          109,863
   Minimed, Inc.* ..................................      2,000          236,000
   Oxford Health Plans, Inc.* ......................     16,010          381,238
   Pharmacia Corp. .................................      2,180          112,679
   Province Healthcare Co.* ........................      4,510          162,924
   Sepracor, Inc.* .................................      1,800          217,125

Triad Hospitals, Inc.* .............................      6,060          146,576
                                                                      ----------
                                                                       2,728,315
                                                                      ----------
INDUSTRIAL (4.3%)
   AES Corp.* ......................................      2,970          135,506
   Aspect Communications Inc.* .....................      2,000           78,625
   Asyst Technologies, Inc.* .......................      2,060           70,555
   BISYS Group, Inc.* ..............................      2,900          178,350
   Boeing Co. ......................................      2,090           87,388
   CommScope, Inc.* ................................      1,900           77,900
   Convergys Corp.* ................................      1,870           97,006
   CSG Systems Intl., Inc.* ........................      1,755           98,390
   Documentum, Inc.* ...............................      2,220          198,413
   Dycom Industries, Inc.* .........................      2,040           93,840
   FactSet Research Systems, Inc. ..................      3,400           96,050
   Fiserv, Inc.* ...................................      1,300           56,225
   Forward Air Corporation* ........................      6,800          272,000
   Grant Prideco, Inc.* ............................      2,230           55,750
   Hooper Holmes, Inc. .............................      8,320           66,560
   HS Resources, Inc.* .............................      4,110          123,300
   Kent Electronics Corp.* .........................      3,660          109,114
   KLA Tencor Corp.* ...............................      1,050           61,491
   Lam Research Corp.* .............................      1,800           67,500
   Lockheed Martin Corp. ...........................      2,610           64,761
   Mettler-Toledo International* ...................      1,900           76,000

   The accompanying notes are an integral part of these financial statements.


                                       66
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                            June 30, 2000 (Unaudited)

                                                          Shares        Value
                                                         -------     -----------
ACTIVE ASSETS (CONTINUED):
TECHNOLOGY (CONTINUED)
   Olin Corp. ......................................      5,090      $    83,985
   PRI Automation, Inc.* ...........................      2,700          176,555
   SDL, Inc.* ......................................        700          199,631
   Spartech Corp. ..................................      3,180           85,860
   Varco International, Inc.* ......................      8,775          204,019
   Wellman, Inc. ...................................      5,090           82,394
                                                                     -----------
                                                                       2,997,168
                                                                     -----------
TECHNOLOGY (14.8%)
   Analog Devices, Inc.* ...........................      1,390          105,640
   ANTEC Corp.* ....................................      2,200           91,438
   Applied Materials, Inc.* ........................      7,400          670,625
   Atmel Corp.* ....................................      8,800          324,500
   ATMI, Inc.* .....................................      2,300          106,950
   Aware, Inc.* ....................................      1,100           56,238
   Business Objects S.A.-Sp ADR* ...................      2,300          202,688
   Ciena Corp.* ....................................      3,200          533,400
   Cisco Systems, Inc.* ............................     27,600        1,754,325
   Compaq Computer Corp. ...........................      1,830           46,779
   Comverse Technology Inc.* .......................      1,310          121,830
   Critical Path, Inc.* ............................      2,300          134,119
   Cytyc Corporation* ..............................      2,800          149,450
   Dallas Semiconductor Corp. ......................      2,000           81,500
   Datastream Sys. Inc. ............................        220            2,750
   Efficient Networks, Inc.* .......................      1,400          102,988
   Entrust Technologies, Inc.* .....................      2,600          215,150
   E-Speed, Inc. Cl A* .............................      1,800           78,188
   Getty Images, Inc.* .............................      2,800          103,775
   Intel Corp. .....................................      6,630          886,348
   Intuit, Inc.* ...................................        900           37,238
   ISS Group, Inc. .................................      1,200          118,481
   JDA Software Group, Inc.* .......................      5,090           97,664
   JDS Uniphase Corp.* .............................      3,600          431,550
   Kana Communications, Inc.* ......................      1,300           80,438
   Lattice Semiconductor Corp.* ....................      1,700          117,513
   Liberare Technologies* ..........................      1,200           35,175
   Linear Technology Corp. .........................      8,000          511,500
   Maxim Integrated Products, Inc.* ................      7,400          502,738
   Metasolv Software, Inc.* ........................      1,200           52,800
   Microchip Technology, Inc.* .....................      3,600          209,756
   Micromuse, Inc.* ................................        600           99,291
   Micron Technology, Inc.* ........................      1,550          136,497
   Microsoft Corp.* ................................      1,300          103,986
   Millipore Corp. .................................        850           64,069
   Networks Associates, Inc.* ......................      8,870          180,726
   Northrop Grumman Corp. ..........................        960           63,600
   Perkin Elmer, Inc. ..............................      2,520          166,635
   Phone.com, Inc.* ................................      1,300           84,663
   RealNetworks, Inc.* .............................      1,800           91,013
   Symbol Technologies, Inc. .......................      1,200           64,800
   Teletech Holdings, Inc.* ........................      4,300          133,569
   United Technologies Corp. .......................      1,550           91,256
   Varian Semiconductor Equip.* ....................      1,890          118,716
   Veritas Software Corp.* .........................        930          105,105
   Vignette Corporation* ...........................      1,600           83,225
   Vitria Technology, Inc.* ........................      3,400          207,825
   Waters Corp.* ...................................        850          106,091
   Xilinx, Inc.* ...................................      3,900          321,994
                                                                     -----------
                                                                      10,186,595
                                                                     -----------

TELECOMMUNICATIONS (1.6%)
   AT&T Corp. ......................................      2,710           85,704
   Global Crossing Ltd.* ...........................      3,080           81,043
   ITC DeltaCom, Inc.* .............................      4,600          102,638
   McLeod USA, Inc. Cl A* ..........................      4,700           97,231
   NTL Incorporated* ...............................      1,910          114,361
   Sprint Corp. (PCS Group) ........................      2,510          128,010
   TeleWest Communications -ADR* ...................      2,900          107,300
   Time Warner Telecom, Inc Cl A* ..................      2,800          180,250
   True North Communications Inc. .....................   1,506           66,264
   Western Wireless Corp. Cl A* ....................      2,500          136,250
                                                                     -----------
                                                                       1,099,051
                                                                     -----------
UTILITIES (0.5%)
   El Paso Energy Corp. ............................      2,760          140,588
   Montana Pwr. Co. ................................      4,490          158,553
   NSTAR ...........................................      1,490           60,624
                                                                     -----------
                                                                         359,765
                                                                     -----------
TOTAL ACTIVE ASSETS--COMMON STOCKS
  (Cost: $20,411,586) 39.5% ........................                  27,290,162
                                                                     -----------
-------------
 *Non-income producing security.

   The accompanying notes are an integral part of these financial statements.


                                       67
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                            June 30, 2000 (Unaudited)

<TABLE>
<CAPTION>
                                                                        Face
                                               Rate      Maturity      Amount       Value
                                              -------    --------    ----------  -----------
<S>                                            <C>       <C>          <C>        <C>
ACTIVE ASSETS (CONTINUED):
SHORT-TERM DEBT SECURITIES:
COMMERCIAL PAPER (1.7%)
   Bank Austria Comml. Paper Inc. ..........   6.58%     07/14/00     $100,000   $    99,762
   BMW US Capital Corp. ....................   6.54      07/17/00      100,000        99,709
   Ford Motor Credit Puerto Rico ...........   6.60      07/03/00      184,000       183,932
   SBC Communications, Inc. ................   6.83      07/03/00      765,000       764,710
                                                                                 -----------
TOTAL ACTIVE ASSETS SHORT-TERM DEBT SECURITIES
   (Cost: $1,148,113) 1.7% .................................................       1,148,113
                                                                                 -----------
TOTAL ACTIVE ASSETS
   (Cost: $21,559,699) 41.2% ...............................................      28,438,275
                                                                                 -----------
TOTAL INVESTMENTS
   (Cost: $51,529,161) 100.0% ..............................................     $68,998,175
                                                                                 ===========
</TABLE>

   The accompanying notes are an integral part of these financial statements.


                                       68
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (EQUITY INDEX FUND)
                     PORTFOLIO OF INVESTMENTS IN SECURITIES
                            June 30, 2000 (Unaudited)

                                                          Shares         Value
                                                         -------       --------
INDEXED ASSETS:
COMMON STOCKS
   3Com Corp .......................................        968       $   55,781
   Abbott Laboratories .............................      4,313          192,198
   Adaptec, Inc. ...................................        287            6,529
   ADC Telecommunications, Inc. ....................        945           79,262
   Adobe Systems, Inc. .............................        338           43,940
   Advanced Micro Devices, Inc. ....................        428           33,063
   AES Corp. .......................................      1,192           54,385
   Aetna, Inc. .....................................        394           25,290
   Aflac, Inc. .....................................        747           34,315
   Agilent Technologies, Inc. ......................      1,258           92,778
   Air Products & Chemicals, Inc. ..................        644           19,843
   Alberto-Culver Co. ..............................        156            4,768
   Albertson's, Inc. ...............................      1,189           39,534
   Alcan Aluminum Ltd. .............................        615           19,065
   ALCOA, Inc. .....................................      2,432           70,528
   Allegheny Technologies, Inc. ....................        263            4,734
   Allergan, Inc. ..................................        369           27,491
   Allied Waste Industries, Inc. ...................        530            5,300
   Allstate Corp. ..................................      2,083           46,347
   Alltel Corp. ....................................        881           54,567
   Altera Corp. ....................................        557           56,779
   Alza Corp. ......................................        287           16,969
   Amerada Hess Corp. ..............................        254           15,685
   Ameren Corp. ....................................        385           12,994
   America Online, Inc. ............................      6,425          338,919
   American Electric Power, Inc. ...................      1,143           33,867
   American Express Co. ............................      3,736          194,739
   American General Corp. ..........................        694           42,334
   American Greetings Corp. Cl A ...................        181            3,439
   American Home Products Corp. ....................      3,664          215,260
   American Int'l. Group, Inc. .....................      4,311          506,543
   American Power Conversion .......................        530           21,631
   Amgen, Inc. .....................................      2,866          201,337
   AMR Corp. .......................................        416           10,998
   Amsouth Bancorporation ..........................      1,097           17,278
   Anadarko Petroleum Corp. ........................        357           17,605
   Analog Devices, Inc. ............................        979           74,404
   Andrew Corp. ....................................        231            7,753
   Anheuser-Busch Cos., Inc. .......................      1,263           94,330
   Aon Corp. .......................................        720           22,365
   Apache Corp. ....................................        320           18,820
   Apple Computer, Inc. ............................        904           47,347
   Applied Materials, Inc. .........................      2,259          204,722
   Archer-Daniels-Midland Co. ......................      1,707           16,750
   Armstrong Holdings, Inc. ........................        113            1,730
   Ashland, Inc. ...................................        202            7,083
   Associates First Capital Corp. ..................      2,044           45,607
   AT&T Corp. ......................................     10,527          332,921
   Autodesk, Inc. ..................................        171            5,932
   Automatic Data Processing, Inc. .................      1,755           94,002
   AutoZone, Inc. ..................................        405            8,910
   Avery Dennison Corp. ............................        316           21,212
   Avon Products, Inc. .............................        680           30,260
   Baker Hughes, Inc. ..............................        923           29,536
   Ball Corp .......................................         84            2,704
   Bank of America Corp. ...........................      4,635          199,305
   Bank of New York Co., Inc. ......................      2,066           96,069
   Bank One Corp. ..................................      3,219           85,505
   Bard (C.R.), Inc. ...............................        144            6,930
   Barrick Gold Corp. ..............................      1,107           20,134
   Bausch & Lomb, Inc. .............................        161           12,457
   Baxter International, Inc. ......................        817           57,445
   BB & T Corp. ....................................        975           23,278
   Bear Stearns Cos., Inc. .........................        309           12,862
   Becton Dickinson & Co. ..........................        702           20,139
   Bed Bath & Beyond, Inc. .........................        392           14,210
   BellSouth Corp. .................................      5,283          225,188
   Bemis Co. .......................................        146            4,909
   Best Buy Co., Inc. ..............................        576           36,432
   Bestfoods .......................................        768           53,184
   Bethlehem Steel Corp. ...........................        369            1,315
   Biogen, Inc. ....................................        422           27,219
   Biomet, Inc. ....................................        316           12,146
   Black & Decker Corp. ............................        243            9,553
   Block (H. & R.), Inc. ...........................        274            8,871
   BMC Software, Inc. ..............................        680           24,809
   Boeing Co. ......................................      2,537          106,078
   Boise Cascade Corp. .............................        160            4,140
   Boston Scientific Corp. .........................      1,164           25,535
   Briggs & Stratton Corp. .........................         65            2,226
   Bristol-Myers Squibb Co. ........................      5,517          321,365
   Broadcom Corp. - Cl A ...........................        575          125,889
   Brown-Forman Corp. Cl B .........................        192           10,320
   Brunswick Corp. .................................        258            4,273
   Burlington Northern Santa Fe ....................      1,198           27,479
   Burlington Resources, Inc. ......................        611           23,371
   Cabletron Systems, Inc. .........................        506           12,777
   Campbell Soup Co. ...............................      1,200           34,950
   Capital One Financial Corp. .....................        553           24,678
   Cardinal Health, Inc. ...........................        770           56,980
   Carnival Corp. ..................................      1,731           33,755
   Caterpillar, Inc. ...............................        998           33,807
   Cendant Corp. ...................................      1,995           27,930
   Centex Corp. ....................................        166            3,901
   CenturyTel, Inc. ................................        392           11,270
   Ceridian Corp. ..................................        406            9,769
   Charles Schwab Corp. ............................      3,808          128,044
   Charter One Financial, Inc. .....................        586           13,478
   Chase Manhattan Corp. ...........................      3,471          159,883
   Chevron Corp. ...................................      1,823          154,613
   Chubb Corp. .....................................        494           30,381
   CIGNA Corp. .....................................        455           42,543
   Cincinnati Financial Corp. ......................        460           14,461
   CINergy Corp. ...................................        445           11,320
   Circuit City Group, Inc. ........................        571           18,950
   Cisco Systems, Inc. .............................     19,455        1,236,608
   Citigroup, Inc. .................................      9,438          568,640
   Citrix Systems, Inc. ............................        503            9,526
   Clear Channel Communications ....................        949           71,175
   Clorox Co. ......................................        664           29,756
   CMS Energy Corp. ................................        325            7,191
   Coastal Corp. ...................................        599           36,464
   Coca-Cola Co. ...................................      6,932          398,157
   Coca-Cola Enterprises, Inc. .....................      1,194           19,477
   Colgate-Palmolive Co. ...........................      1,613           96,578
   Columbia Energy Group ...........................        228           14,963
   Comcast Corp. Cl A ..............................      2,511          101,696
   Comerica, Inc. ..................................        439           19,700
   Compaq Computer Corp. ...........................      4,770          121,933
   Computer Associates Intl., Inc ..................      1,648           84,357
   Computer Sciences Corp. .........................        467           34,879
   Compuware Corp. .................................      1,004           10,417
   Comverse Technology Inc. ........................        430           39,990
   Conagra, Inc. ...................................      1,381           26,325
   Conexant Systems, Inc. ..........................        608           29,564
   Conoco, Inc. ....................................      1,757           43,156

   The accompanying notes are an integral part of these financial statements.


                                       69
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (EQUITY INDEX FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                            June 30, 2000 (Unaudited)

                                                           Shares        Value
                                                           ------      ---------
INDEXED ASSETS (CONTINUED):
COMMON STOCKS (CONTINUED)
   Conseco, Inc. ...................................        918        $   8,951
   Consolidated Edison, Inc. .......................        620           18,368
   Consolidated Stores Corp. .......................        310            3,720
   Constellation Energy Group ......................        419           13,644
   Convergys Corp. .................................        440           22,825
   Cooper Industries, Inc. .........................        264            8,597
   Cooper Tire & Rubber Co. ........................        213            2,370
   Coors (Adolph) Co. Cl B .........................        103            6,232
   Corning, Inc. ...................................        771          208,074
   Costco Wholesale Corp. ..........................      1,245           41,085
   Countrywide Credit Industries ...................        318            9,639
   CP&L Energy, Inc. (Holding Co) ..................        448           14,308
   Crane Co. .......................................        185            4,498
   Crown Cork & Seal, Inc. .........................        364            5,460
   CSX Corp. .......................................        613           12,988
   Cummins Engine Co., Inc. ........................        117            3,188
   CVS Corp. .......................................      1,099           43,960
   Dana Corp. ......................................        462            9,789
   Danaher Corp. ...................................        400           19,775
   Darden Restaurants, Inc. ........................        369            5,996
   Deere & Co. .....................................        655           24,235
   Dell Computer Corp. .............................      7,190          354,557
   Delphi Automotive Systems Corp ..................      1,586           23,096
   Delta Air Lines, Inc. ...........................        343           17,343
   Deluxe Corp. ....................................        206            4,854
   Dillard's Inc. Cl A .............................        302            3,700
   Disney (Walt) Co. ...............................      5,788          224,647
   Dollar General Corp. ............................        932           18,174
   Dominion Resources, Inc. ........................        685           29,369
   Donnelley (R.R.) & Sons Co. .....................        355            8,010
   Dover Corp. .....................................        571           23,161
   Dow Chemical Co. ................................      1,890           57,054
   Dow Jones & Co., Inc. ...........................        251           18,386
   DTE Energy Co. ..................................        407           12,439
   Du Pont (E.I.) de Nemours & Co ..................      2,931          128,231
   Duke Energy Corp. ...............................      1,026           57,841
   Dun & Bradstreet Corp. ..........................        452           12,939
   Eastern Enterprises .............................         76            4,788
   Eastman Chemical Co. ............................        220           10,505
   Eastman Kodak Co. ...............................        866           51,527
   Eaton Corp. .....................................        206           13,802
   Ecolab, Inc. ....................................        364           14,219
   Edison International ............................        974           19,967
   El Paso Energy Corp. ............................        640           32,600
   Electronic Data Systems Corp. ...................      1,322           54,533
   EMC Corp. .......................................      6,069          466,934
   Emerson Electric Co. ............................      1,193           72,027
   Engelhard Corp. .................................        354            6,040
   Enron Corp. .....................................      2,047          132,032
   Entergy Corp. ...................................        643           17,482
   Equifax, Inc. ...................................        397           10,421
   Exxon Mobil Corp. ...............................      9,736          764,276
   Fannie Mae ......................................      2,817          147,012
   Federated Department Stores .....................        589           19,879
   FedEx Corp. .....................................        838           31,844
   Fifth Third Bancorp .............................        866           54,775
   First Data Corp. ................................      1,153           57,218
   First Union Corp. ...............................      2,772           68,780
   Firstar Corp. ...................................      2,751           57,943
   FirstEnergy Corp. ...............................        654           15,287
   FleetBoston Financial Corp. .....................      2,520           85,680
   Florida Progress Corp. ..........................        275           12,891
   Fluor Corp. .....................................        213            6,736
   FMC Corp. .......................................         86            4,988
   Ford Motor Co. ..................................      3,389          145,727
   Fort James Corp. ................................        607           14,037
   Fortune Brands, Inc. ............................        460           10,609
   FPL Group, Inc. .................................        503           24,899
   Franklin Resources, Inc. ........................        707           21,475
   Freddie Mac .....................................      1,951           79,016
   Freeport-McMoran Copper Cl B ....................        459            4,246
   Gannett Co., Inc. ...............................        745           44,560
   Gap, Inc. .......................................      2,402           75,063
   Gateway, Inc. ...................................        888           50,394
   General Dynamics Corp. ..........................        563           29,417
   General Electric Co. ............................     27,670        1,466,510
   General Mills, Inc. .............................        815           31,174
   General Motors Corp. ............................      1,496           86,862
   Genuine Parts Co. ...............................        499            9,980
   Georgia-Pacific Group ...........................        480           12,600
   Gillette Co. ....................................      2,920          102,018
   Global Crossing Ltd. ............................      2,472           65,045
   Golden West Financial Corp. .....................        453           18,488
   Goodrich (B.F.) Co. .............................        309           10,525
   Goodyear Tire & Rubber Co. ......................        439            8,780
   GPU, Inc. .......................................        346            9,364
   Grainger (W.W.), Inc. ...........................        262            8,073
   Great Atlantic & Pac. Tea, Inc ..................        108            1,796
   Great Lakes Chemical Corp. ......................        161            5,072
   GTE Corp. .......................................      2,693          167,639
   Guidant Corp. ...................................        862           42,669
   Halliburton Co. .................................      1,240           58,513
   Harcourt General, Inc. ..........................        200           10,875
   Harley-Davidson, Inc. ...........................        848           32,648
   Harrah's Entertainment, Inc. ....................        361            7,558
   Hartford Financial Svs Gp, Inc. .................        601           33,618
   Hasbro, Inc. ....................................        481            7,245
   HCA - The Healthcare Company ....................      1,581           48,023
   HealthSouth Corp. ...............................      1,083            7,784
   Heinz (H.J.) Co. ................................      1,005           43,969
   Hercules, Inc. ..................................        298            4,191
   Hershey Food Corp. ..............................        388           18,818
   Hewlett-Packard Co. .............................      2,797          349,275
   Hilton Hotels Corp. .............................      1,035            9,703
   Home Depot, Inc. ................................      6,461          322,646
   Homestake Mining Co. ............................        731            5,026
   Honeywell International, Inc. ...................      2,221           74,820
   Household International, Inc. ...................      1,319           54,821
   Humana, Inc. ....................................        470            2,291
   Huntington Bancshares, Inc. .....................        645           10,199
   Illinois Tool Works, Inc. .......................        843           48,051
   IMS Health, Inc. ................................        864           15,552
   Inco Ltd. .......................................        539            8,287
   Ingersoll Rand Co. ..............................        459           18,475
   Intel Corp. .....................................      9,366        1,252,117
   International Paper Co. .........................      1,352           40,307
   Interpublic Group of Cos., Inc. .................        844           36,292
   Intl. Business Machines Corp. ...................      4,958          543,211
   Intl. Flavors & Fragrances ......................        295            8,905
   ITT Industries, Inc. ............................        247            7,503
   Jefferson-Pilot Corp. ...........................        294           16,593
   Johnson & Johnson ...............................      3,890          396,294
   Johnson Controls, Inc. ..........................        239           12,264
   Kansas City Southern Inds .......................        310           27,493
   Kaufman & Broad Home Corp. ......................        134            2,655
   Kellogg Co. .....................................      1,138           33,856
   Kerr-McGee Corp. ................................        263           15,501
   KeyCorp .........................................      1,256           22,137
   Kimberly Clark Corp. ............................      1,554           89,161
   KLA Tencor Corp. ................................        505           29,574

   The accompanying notes are an integral part of these financial statements.


                                       70
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (EQUITY INDEX FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                            June 30, 2000 (Unaudited)

                                                         Shares          Value
                                                         ------       ----------
INDEXED ASSETS (CONTINUED):
COMMON STOCKS (CONTINUED)
   Kmart Corp. .....................................      1,385       $    9,435
   Knight-Ridder, Inc. .............................        217           11,542
   Kohl's Corp. ....................................        914           50,841
   Kroger Co. ......................................      2,334           51,494
   Legget & Platt ..................................        551            9,092
   Lehman Brothers Holdings, Inc. ..................        336           31,773
   Lexmark Int'l Inc. ..............................        359           24,143
   Lilly (Eli) & Co. ...............................      3,159          315,505
   Limited, Inc. ...................................      1,206           26,080
   Lincoln National Corp. ..........................        548           19,797
   Linear Technology Corp. .........................        865           55,306
   Liz Claiborne, Inc. .............................        166            5,852
   Lockheed Martin Corp. ...........................      1,111           27,567
   Loews Corp. .....................................        276           16,560
   Longs Drug Stores Corp. .........................        110            2,393
   Louisiana-Pacific Corp. .........................        299            3,252
   Lowe's Companies, Inc. ..........................      1,072           44,019
   LSI Logic Corp. .................................        859           46,493
   Lucent Technologies .............................      9,107          539,590
   Mallinckrodt, Inc. ..............................        195            8,470
   Manor Care, Inc. ................................        289            2,023
   Marriott International, Inc. ....................        670           24,162
   Marsh & McLennan Cos., Inc. .....................        748           78,119
   Masco Corp. .....................................      1,255           22,668
   Mattel, Inc. ....................................      1,181           15,574
   Maxim Integrated Products, Inc. .................        790           53,671
   May Department Stores Co. .......................        938           22,512
   Maytag Corp. ....................................        237            8,739
   MBIA, Inc. ......................................        279           13,444
   MBNA Corp. ......................................      2,250           61,031
   McDermott International, Inc. ...................        168            1,481
   McDonald's Corp. ................................      3,737          123,087
   McGraw-Hill Cos., Inc. ..........................        550           29,700
   McKesson HBOC, Inc. .............................        790           16,541
   Mead Corp. ......................................        288            7,272
   Medimmune, Inc. .................................        584           43,216
   Medtronic, Inc. .................................      3,354          167,071
   Mellon Financial Corp. ..........................      1,374           50,065
   Merck & Co., Inc. ...............................      6,431          492,775
   Mercury Interactive Corp. .......................        210           20,318
   Meredith Corp. ..................................        145            4,894
   Merrill Lynch & Co., Inc. .......................      1,085          124,775
   MGIC Investment Corp. ...........................        297           13,514
   Micron Technology, Inc. .........................      1,552          136,673
   Microsoft Corp. .................................     14,718        1,177,402
   Millipore Corp. .................................        127            9,573
   Minnesota Mining & Mfg. Co. .....................      1,107           91,328
   Molex Inc., Cl A ................................        550           26,469
   Morgan (J.P.) & Co., Inc. .......................        454           49,997
   Morgan Stanley Dean Witter ......................      3,165          263,486
   Motorola, Inc. ..................................      6,019          174,927
   Nabisco Group Holdings ..........................        916           23,759
   National City Corp. .............................      1,730           29,518
   National Semiconductor Corp. ....................        481           27,297
   National Service Industries .....................        114            2,223
   Navistar International Corp. ....................        179            5,560
   NCR Corp. .......................................        271           10,552
   Network Appliance, Inc. .........................        852           68,586
   New Century Energies, Inc. ......................        324            9,720
   New York Times Co. Cl A .........................        480           18,960
   Newell Rubbermaid, Inc. .........................        745           19,184
   Newmont Mining Corp. ............................        470           10,164
   Nextel Communications, Inc. .....................      2,121          129,779
   Niagara Mohawk Holdings, Inc. ...................        525            7,317
   Nicor, Inc. .....................................        132            4,307
   Nike, Inc. Cl B .................................        785           31,253
   Nordstrom, Inc. .................................        388            9,361
   Norfolk Southern Corp. ..........................      1,068           15,887
   Nortel Networks Corp. Holding ...................      8,285          565,451
   Northern States Power Co. .......................        434            8,761
   Northern Trust Corp. ............................        624           40,599
   Northrop Grumman Corp. ..........................        195           12,919
   Novell, Inc. ....................................        934            8,640
   Novellus Systems, Inc. ..........................        365           20,645
   Nucor Corp. .....................................        244            8,098
   Occidental Petroleum Corp. ......................      1,031           21,715
   Office Depot, Inc. ..............................        923            5,769
   Old Kent Financial Corp. ........................        384           10,280
   Omnicom Group, Inc. .............................        498           44,353
   Oneok, Inc. .....................................         88            2,283
   Oracle Corp. ....................................      7,938          667,288
   Owens Corning ...................................        154            1,425
   Owens-Illinois, Inc. ............................        421            4,920
   Paccar, Inc. ....................................        220            8,731
   Pactiv Corp. ....................................        480            3,780
   Paine Webber Group, Inc. ........................        401           18,246
   Pall Corp. ......................................        349            6,457
   Parametric Technology Corp. .....................        756            8,316
   Parker Hannifin Corp. ...........................        314           10,755
   Paychex, Inc. ...................................      1,038           43,596
   PE Corp-PE Biosystems Group .....................        578           38,076
   Peco Energy Co. .................................        474           19,108
   Penney (J.C.) Co., Inc. .........................        730           13,459
   Peoples Energy Corp. ............................         99            3,205
   Peoplesoft, Inc. ................................        753           12,613
   PepsiCo, Inc. ...................................      4,030          179,083
   Perkin Elmer, Inc. ..............................        129            8,530
   Pfizer, Inc. ....................................     17,605          845,040
   PG & E Corp. ....................................      1,077           26,521
   Pharmacia Corp. .................................      3,550          183,491
   Phelps Dodge Corp. ..............................        227            8,452
   Phillip Morris Cos., Inc. .......................      6,395          169,867
   Phillips Petroleum Co. ..........................        711           36,039
   Pinnacle West Capital Corp. .....................        238            8,062
   Pitney Bowes, Inc. ..............................        745           29,800
   Placer Dome, Inc. ...............................        913            8,731
   PNC Financial Services Group ....................        825           38,672
   Polaroid Corp. ..................................        125            2,258
   Potlatch Corp. ..................................         81            2,683
   PPG Industries, Inc. ............................        488           21,625
   PPL Corporation .................................        403            8,841
   Praxair, Inc. ...................................        445           16,660
   Price (T. Rowe) Associates ......................        336           14,280
   Proctor & Gamble Co. ............................      3,658          209,421
   Progressive Corp. of Ohio .......................        205           15,170
   Providian Financial Corp. .......................        398           35,820
   Public Svc. Enterprise Group ....................        613           21,225
   Pulte Corp. .....................................        122            2,638
   Quaker Oats Co. .................................        376           28,247
   Qualcomm, Inc. ..................................      2,063          123,780
   Quintiles Transnational Corp. ...................        323            4,562
   Radioshack Corp. ................................        542           25,677
   Ralston Purina Co. ..............................        856           17,067
   Raytheon Co. ....................................        949           18,268
   Reebok International Ltd. .......................        158            2,518
   Regions Financial Corp. .........................        613           12,183
   Reliant Energy, Inc. ............................        830           24,537
   Rite-Aid Corp. ..................................        727            4,771

   The accompanying notes are an integral part of these financial statements.


                                       71
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (EQUITY INDEX FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                            June 30, 2000 (Unaudited)

                                                          Shares         Value
                                                          ------      ----------
INDEXED ASSETS (CONTUNUED):
COMMON STOCKS (CONTUNUED)
   Rockwell Intl., Corp. ...........................        534       $   16,821
   Rohm Haas Co. ...................................        614           21,183
   Rowan Cos., Inc. ................................        259            7,867
   Royal Dutch Petroleum Co. N.Y ...................      5,997          369,190
   Russell Corp. ...................................         93            1,860
   Ryder System, Inc. ..............................        180            3,409
   Sabre Group Holdings, Inc. ......................        363           10,346
   Safeco Corp. ....................................        365            7,254
   Safeway, Inc. ...................................      1,388           62,634
   Sanmina Corp. ...................................        415           35,483
   Sapient Corp. ...................................        160           17,110
   Sara Lee Corp. ..................................      2,432           46,968
   SBC Communications, Inc. ........................      9,514          411,481
   Schering-Plough Corp. ...........................      4,095          206,798
   Schlumberger, Ltd. ..............................      1,592          118,803
   Scientific-Atlanta, Inc. ........................        442           32,929
   Seagate Technology ..............................        635           34,925
   Seagram Co. Ltd. (The) ..........................      1,216           70,528
   Sealed Air Corp. New ............................        235           12,308
   Sears Roebuck & Co. .............................        986           32,168
   Sempra Energy ...................................        573            9,741
   Sherwin-Williams Co. ............................        465            9,852
   Siebel Systems, Inc. ............................        558           91,268
   Sigma-Aldrich Corp. .............................        238            6,962
   SLM Holding Corp. ...............................        447           16,735
   Snap-On, Inc. ...................................        164            4,367
   Solectron Corp. .................................      1,644           68,843
   Southern Co. ....................................      1,814           42,289
   Southtrust Corp .................................        470           10,634
   Southwest Airlines Co. ..........................      1,416           26,816
   Springs Industries, Inc. Cl A ...................         50            1,609
   Sprint Corp. (FON Group) ........................      2,446          124,746
   Sprint Corp. (PCS Group) ........................      2,560          152,320
   St. Jude Medical, Inc. ..........................        236           10,827
   St. Paul Companies, Inc. ........................        593           20,236
   Stanley Works ...................................        251            5,961
   Staples, Inc. ...................................      1,303           20,034
   Starbucks Corp. .................................        513           19,590
   State Street Corp. ..............................        449           47,622
   Summit Bancorp ..................................        490           12,066
   Sun Microsystems, Inc. ..........................      4,437          403,490
   Sunoco, Inc. ....................................        253            7,448
   Suntrust Banks, Inc. ............................        846           38,652
   Supervalu, Inc. .................................        392            7,473
   Synovus Financial Corp. .........................        785           13,836
   Sysco Corp. .....................................        924           38,924
   Target Corp. ....................................      1,275           73,950
   Tektronix, Inc. .................................        133            9,842
   Tellabs, Inc. ...................................      1,145           78,361
   Temple-Inland, Inc. .............................        156            6,552
   Tenet Healthcare Corp. ..........................        874           23,598
   Teradyne, Inc. ..................................        480           35,280
   Texaco, Inc. ....................................      1,552           82,644
   Texas Instruments, Inc. .........................      4,577          314,383
   Textron, Inc. ...................................        417           22,648
   Thermo Electron Corp. ...........................        444            9,352
   Thomas & Betts Corp. ............................        163            3,117
   Tiffany & Co. ...................................        200           13,500
   Time Warner, Inc. ...............................      3,680          279,680
   Timken Co. ......................................        174            3,241
   TJX Companies, Inc. .............................        870           16,313
   Torchmark Corp. .................................        369            9,110
   Tosco Corp. .....................................        403           11,410
   Toys R Us, Inc. .................................        605            8,810
   Transocean Sedco Forex, Inc. ....................        582           31,101
   Tribune Co. .....................................        863           30,188
   Tricon Global Restaurants Inc. ..................        431           12,176
   TRW, Inc. .......................................        341           14,791
   Tupperware Corp. ................................        161            3,542
   TXU Corp. .......................................        738           21,771
   Tyco International Ltd. .........................      4,739          224,510
   U.S. Bancorp ....................................      2,103           40,483
   U.S. West, Inc. .................................      1,418          121,594
   Unicom Corp. ....................................        497           19,228
   Unilever N.V ....................................      1,604           68,972
   Union Carbide Corp. .............................        376           18,612
   Union Pacific Corp. .............................        697           25,920
   Union Pacific Resources Group ...................        707           15,554
   Union Planters Corp. ............................        396           11,063
   Unisys Corp. ....................................        870           12,669
   United Technologies Corp. .......................      1,316           77,480
   UnitedHealth Group Inc. .........................        454           38,931
   Unocal Corp. ....................................        680           22,525
   UNUMProvident Corp. .............................        674           13,522
   US Airways Group Inc. ...........................        201            7,839
   UST, Inc. .......................................        480            7,050
   USX-Marathon Group ..............................        872           21,855
   USX-U.S. Steel Group ............................        248            4,604
   V F Corp. .......................................        331            7,882
   Veritas Software Corp. ..........................      1,093          123,526
   Verizon Communications ..........................      4,323          219,662
   Viacom, Inc. Cl B ...............................      4,276          291,570
   Visteon Corp. ...................................        364            4,410
   Vulcan Materials Co. ............................        280           11,953
   W.R. Grace & Co. ................................        201            2,437
   Wachovia Corp. ..................................        568           30,814
   Walgreen Co. ....................................      2,816           90,640
   Wal-Mart Stores, Inc. ...........................     12,465          718,296
   Washington Mutual, Inc. .........................      1,532           44,237
   Waste Management, Inc. ..........................      1,738           33,022
   Watson Pharmaceuticals, Inc. ....................        269           14,459
   Wellpoint Health Networks Inc. ..................        179           12,966
   Wells Fargo & Company ...........................      4,506          174,608
   Wendy's International, Inc. .....................        335            5,967
   Westvaco Corp. ..................................        282            6,997
   Weyerhaeuser Co. ................................        659           28,337
   Whirlpool Corp. .................................        208            9,698
   Willamette Industries, Inc. .....................        313            8,529
   Williams Cos., Inc. .............................      1,220           50,859
   Winn-Dixie Stores, Inc. .........................        417            5,968
   WorldCom Inc. ...................................      8,007          367,321
   Worthington Industries, Inc. ....................        251            2,636
   Wrigley (Wm.) Jr. Co. ...........................        325           26,061
   Xerox Corp. .....................................      1,864           38,678
   Xilinx, Inc. ....................................        895           73,893
   Yahoo!, Inc. ....................................      1,519          188,166
   Young & Rubicam, Inc. ...........................        195           11,152
                                                                      ----------
 TOTAL INDEXED ASSETS--COMMON STOCKS
 (Cost: $33,322,992) 96.8% .........................                  35,115,205
                                                                      ==========

   The accompanying notes are an integral part of these financial statements.


                                       72
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (EQUITY INDEX FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                            June 30, 2000 (Unaudited)

                                                             Face
                                       Rate     Maturity    Amount      Value
                                      -------   ---------  --------  -----------
ACTIVE PORTION:
SHORT-TERM DEBT SECURITIES:
U. S. GOVERNMENT (0.2%)
   U.S. Treasury Bill(a) .............  5.54%   07/27/00   $ 50,000  $    49,798
   U.S. Treasury Bill(a) .............  5.58    09/07/00     10,000        9,891
                                                                     -----------
                                                                          59,689
                                                                     -----------
COMMERCIAL PAPER (3.0%)
   General Motors Acceptance Corp. ...  6.95     07/07/0    595,000      594,311
   SBC Communications, Inc. ..........  6.83     07/03/0    500,000      499,810
                                                                     -----------
                                                                       1,094,121
                                                                     -----------
TOTAL SHORT-TERM DEBT SECURITIES
   (Cost: $1,153,813) 3.2% .........................................   1,153,810

TOTAL INVESTMENTS
   (Cost: $34,476,805) 100.0% ...................................... $36,269,015
                                                                     ===========

-------------
FUTURES CONTRACTS OUTSTANDING AS OF JUNE 30, 2000:

<TABLE>
<CAPTION>
                                                      Expiration    Underlying Face  Unrealized
                                                         Date       Amount at Value    (Loss)
                                                    -------------  ---------------   ----------
<S>                                                 <C>               <C>             <C>
PURCHASED
   3 S&P 500 Stock Index Futures Contracts .......  September 2000    $1,101,075       $(7,550)
                                                                      ==========      ========
</TABLE>

Face  value of  futures  purchased  and  outstanding  as a  percentage  of total
investments in securities: 3.0%.

-------------
(a)   This security,  or a portion thereof, has been segregated to cover initial
      margin requirements on open futures contracts.

   The accompanying notes are an integral part of these financial statements.


                                       73
<PAGE>

             MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (BOND FUND)
                     PORTFOLIO OF INVESTMENTS IN SECURITIES
                            June 30, 2000 (Unaudited)

<TABLE>
<CAPTION>
                                                                                         Face
                                                               Rate       Maturity      Amount         Value
                                                              -------    ----------   ----------   ------------
<S>                                                             <C>       <C>        <C>            <C>
LONG-TERM DEBT SECURITIES:
U.S. GOVERNMENT (15.7%)
   U.S. Treasury Bond .......................................   7.13%     02/15/23   $1,500,000     $ 1,667,115
   U.S. Treasury Bond .......................................   6.13      11/15/27    2,000,000       1,995,620
   U.S. Treasury Note .......................................   6.63      04/30/02      500,000         501,560
                                                                                                    -----------
                                                                                                      4,164,295
                                                                                                    -----------
AGENCIES/OTHER GOVT'S. (11.5%)
   FHLMC ....................................................   6.50      10/15/06      140,379         139,588
   FHLMC ....................................................   7.63      09/09/09      500,000         492,970
   FNMA .....................................................   7.00      11/25/05      299,033         298,005
   FNMA .....................................................   8.00      07/15/06      161,371         163,085
   FNMA .....................................................   7.00      10/25/07    1,000,000         991,560
   Republic of Iceland ......................................   6.13      02/01/04    1,000,000         969,880
                                                                                                    -----------
                                                                                                      3,055,088
                                                                                                    -----------
BASIC MATERIALS (8.8%)
   Cytec Industries, Inc. ...................................   6.85      05/11/05      500,000         455,280
   Georgia-Pacific Group ....................................   8.63      04/30/25      250,000         233,810
   Millennium America Inc. ..................................   7.63      11/15/26    1,000,000         724,060
   Praxair, Inc. ............................................   6.90      11/01/06      500,000         468,585
   Solutia, Inc. ............................................   6.72      10/15/37      500,000         471,795
                                                                                                    -----------
                                                                                                      2,353,530
                                                                                                    -----------
CONSUMER, CYCLICAL (14.9%)
   Fruit of the Loom, Inc. ..................................   7.00      03/15/11      250,000          85,000
   Fruit of the Loom, Inc. ..................................   7.38      11/15/23      250,000         126,250
   Hasbro, Inc. .............................................   8.50      03/15/06      500,000         494,140
   Kellwood, Co. ............................................   7.88      07/15/09    1,000,000         874,200
   Oakwood Homes Corp. ......................................   8.13      03/01/09    1,000,000         943,327
   Polaroid Corp. ...........................................   7.25      01/15/07      250,000         217,413
   Pulte Corp. ..............................................   7.63      10/15/17      500,000         397,920
   Tommy Hilfiger USA, Inc. .................................   6.50      06/01/03      500,000         380,000
   Venator Group, Inc. ......................................   7.00      10/15/02      500,000         450,000
                                                                                                    -----------
                                                                                                      3,968,250
                                                                                                    -----------
CONSUMER, NON-CYCLICAL (3.9%)
   Supervalu, Inc. ..........................................   8.88      11/15/22    1,000,000       1,035,830
                                                                                                    -----------
ENERGY (5.5%)
   Arco Chemical Co. ........................................  10.25      11/01/10      500,000         491,450
   Columbia Energy Group ....................................   6.61      11/28/02    1,000,000         971,960
                                                                                                    -----------
                                                                                                      1,463,410
                                                                                                    -----------
FINANCIAL (18.1%)
   Bear Stearns Cos., Inc. ..................................   6.63      10/01/04    1,000,000         954,740
   Chase Manhattan Corp. ....................................   6.88      12/12/12    1,000,000         925,590
   Executive Risk, Inc. .....................................   7.13      12/15/07      500,000         493,030
   First American Corp. .....................................   7.55      04/01/28      500,000         438,400
   Fremont General Corp. ....................................   7.70      03/17/04      500,000         200,000
   Harleysville Group Inc. ..................................   6.75      11/15/03      250,000         242,293
   Lehman Brothers Holdings, Inc. ...........................   0.00      07/28/28    1,000,000         103,440
   Morgan (J.P.) & Co., Inc. ................................   0.00      04/15/27    2,500,000         285,525
</TABLE>

   The accompanying notes are an integral part of these financial statements.


                                       74
<PAGE>

             MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (BOND FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                            June 30, 2000 (Unaudited)

<TABLE>
<CAPTION>
                                                                                        Face
                                                               Rate      Maturity      Amount         Value
                                                              -------    --------    ---------     -----------
<S>                                                            <C>       <C>         <C>            <C>
LONG-TERM DEBT SECURITIES (CONTINUED):
FINANCIAL (CONTINUED)
   Nationwide Health Properties .............................  7.90%     11/20/06    $ 500,000     $   460,405
   Rank Group Financial .....................................  6.75      11/30/04      500,000         462,195
   Triad Guaranty ...........................................  7.90      01/15/28      250,000         243,165
                                                                                                   -----------
                                                                                                     4,808,783
                                                                                                   -----------
HEALTHCARE (3.6%)
   Bausch & Lomb, Inc. ......................................  6.38      08/01/03      500,000         482,065
   Bausch & Lomb, Inc. ......................................  6.75      12/15/04      500,000         475,930
                                                                                                   -----------
                                                                                                       957,995
                                                                                                   -----------
INDUSTRIAL  (12.5%)
   Clark Equipment Co. ......................................  8.35      05/15/23      500,000         499,975
   Geon Co. .................................................  7.50      12/15/15      250,000         236,762
   Owens Corning ............................................  7.00      03/15/09    1,000,000         691,640
   Thermo Electron Corp. ....................................  4.25      01/01/03    1,000,000         922,500
   Williams Cos., Inc. ......................................  6.50      11/15/02    1,000,000         975,570
                                                                                                   -----------
                                                                                                     3,326,447
                                                                                                   -----------
UTILITIES (1.7%)
   UtiliCorp United, Inc. ...................................  8.00      03/01/23      500,000         466,220
                                                                                                   -----------

TOTAL LONG-TERM DEBT SECURITIES (Cost: $27,529,744) 96.2% ....................................      25,599,848
                                                                                                   -----------
SHORT-TERM DEBT SECURITIES:
COMMERCIAL PAPER (3.8%)
   General Motors Acceptance Corp. ..........................  6.95      07/07/00      450,000         449,479
   IBM Credit Corp. .........................................  6.70      07/03/00      558,000         557,792
                                                                                                   -----------
                                                                                                     1,007,271
                                                                                                   -----------
TOTAL SHORT-TERM DEBT SECURITIES (Cost: $1,007,271) 3.8% .....................................       1,007,271
                                                                                                   -----------

TOTAL INVESTMENTS 100.0% (Cost: $28,537,015) .................................................     $26,607,119
                                                                                                   ===========
</TABLE>

-------------
Abbreviations: FHLMC = Federal Home Loan Mortgage Corporation
               FNMA = Federal National Mortgage Association

   The accompanying notes are an integral part of these financial statements.


                                       75
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (MONEY MARKET FUND)
                     PORTFOLIO OF INVESTMENTS IN SECURITIES
                            June 30, 2000 (Unaudited)

<TABLE>
<CAPTION>
                                                                   Discount                  Face
                                                         Rating*     Rate       Maturity     Amount       Value
                                                        --------   --------     --------  ------------------------
<S>                                                      <C>         <C>        <C>       <C>          <C>
SHORT-TERM DEBT SECURITIES:
COMMERCIAL PAPER 100%
   Alabama Power Co. ................................     A1/P1      6.54%      07/14/00  $1,000,000   $   997,631
   American Express Credit Corp. ....................     A1/P1      6.56       07/24/00     470,000       468,016
   American Express Credit Corp. ....................     A1/P1      6.56       07/25/00     405,000       403,217
   Associates Corp. North America ...................    A1+/P1      6.52       08/07/00   1,500,000     1,489,904
   AT&T Corp. .......................................    A1+/P1      6.61       08/01/00   1,500,000     1,491,413
   Becton Dickinson & Co. ...........................     A1/P1      6.54       07/13/00   1,150,000     1,147,473
   Bell Atlantic Network Funding Corp. ..............    A1+/P1      6.50       07/28/00     790,000       786,133
   Bell South Telecommunications Corp. ..............    A1+/P1      6.30       07/05/00     506,000       505,642
   Bell South Capital Funding Corp. .................    A1+/P1      6.52       08/15/00     750,000       743,875
   Bemis, Inc. ......................................     A1/P1      6.53       08/11/00   1,570,000     1,558,290
   Coca Cola ........................................    A1+/P1      6.58       08/01/00     168,000       167,043
   Coca Cola ........................................    A1+/P1      6.58       08/07/00     740,000       734,961
   DaimlerChrysler NA Holdings Corp. ................     A1/P1      6.53       08/14/00   1,000,000       991,993
   Donnelley (RR) & Sons Co. ........................     A1/P1      6.40       07/05/00   1,500,000     1,498,922
   Du Pont (E.I.) de Nemours ........................    A1+/P1      6.58       08/02/00     900,000       894,707
   Du Pont (E.I.) de Nemours ........................    A1+/P1      6.56       07/21/00     697,000       694,445
   Ford Motor Credit Co., Inc. Puerto Rico ..........     A1/P1      6.44       07/06/00   1,580,000     1,578,572
   Gannett, Inc. ....................................    A1+/P1      6.50       07/10/00   1,250,000     1,247,952
   General Electric Capital Corp. ...................    A1+/P1      6.54       08/08/00     590,000       585,909
   Grainger (W.W.), Inc. ............................    A1+/P1      6.53       07/17/00   1,460,000     1,455,726
   Great Lakes Chemical Corp. .......................     A1/P1      6.55       08/07/00   1,500,000     1,489,869
   Heinz (H.J.) Co. .................................     A1/P1      6.53       07/13/00   1,425,000     1,421,876
   Kansas City Power & Light Co. ....................     A1/P1      6.55       08/22/00     891,000       882,547
   Kimberly-Clark Corp. .............................    A1+/P1      6.52       07/25/00     964,000       959,788
   Kimberly-Clark Corp. .............................    A1+/P1      6.54       08/04/00     375,000       372,674
   Motorola, Inc. ...................................    A1+/P1      6.54       08/18/00   1,417,000     1,404,617
   New York Times Co. ...............................     A1/P1      6.53       08/03/00   1,025,000     1,018,837
   New York Times Co. ...............................     A1/P1      6.52       08/04/00     800,000       795,053
   Northern States Power Co. ........................    A1+/P1      6.53       07/05/00   1,515,000     1,513,891
   Potomac Electric Power Co. .......................     A1/P1      6.53       07/28/00     740,000       736,369
   Potomac Electric Power Co. .......................     A1/P1      6.60       08/07/00     980,000       973,349
   7-Eleven Inc. ....................................    A1+/P1      6.50       07/03/00     650,000       649,763
   SBC Communications, Inc. .........................    A1+/P1      6.30       07/06/00   1,505,000     1,503,668
   Sherwin-Williams Co. .............................     A1/P1      6.55       08/02/00     798,000       793,345
   Snap-On, Tools Corp. .............................    A1+/P1      6.58       07/11/00   1,500,000     1,497,238
   Unilever Capital Corp. ...........................    A1+/P1      6.45       07/11/00   1,500,000     1,497,287
   Wal-Mart Stores, Inc. ............................    A1+/P1      6.51       07/25/00   1,000,000       995,631
   Washington Post Co. ..............................    A1+/P1      6.53       08/01/00   1,500,000     1,491,525
   Wisconson Energy Corp. ...........................    A1+/P1      6.53       07/19/00   1,230,000     1,225,971
                                                                                                       -----------

Total Short-Term Debt Securities (Cost: $40,665,122) 100% ..........................................   $40,665,122
                                                                                                       ===========
</TABLE>
-------------
*     The ratings are provided by Standard & Poor's Corporation/Moody's Investor
      Services, Inc.

   The accompanying notes are an integral part of these financial statements.


                                       76
<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                       STATEMENT OF ASSETS AND LIABILITIES
                            June 30, 2000 (Unaudited)

<TABLE>
<CAPTION>
                                                         All America     Equity Index          Bond           Money Market
                                                            Fund             Fund              Fund               Fund
                                                        ------------     -------------     -----------        -----------
<S>                                                      <C>              <C>               <C>               <C>
ASSETS:
Investments at market value (Notes 1 and 3)
   (Cost:
   All America Fund -- $51,529,161
   Equity Index Fund -- $34,476,805
   Bond Fund -- $28,537,015
   Money Market Fund-- $40,665,122) ...................  $68,998,175      $36,269,015       $26,607,119       $40,665,122
Cash ..................................................      261,169            7,325             5,463            56,770
Interest and dividends receivable .....................       49,116           27,746           432,016                --
Receivable for securities sold ........................      676,744           66,773                --                --
Shareholder subscriptions receivable ..................           --               --                --            49,838
                                                         -----------      -----------       -----------       -----------
TOTAL ASSETS ..........................................   69,985,204       36,370,859        27,044,598        40,771,730
                                                         -----------      -----------       -----------       -----------
LIABILITIES:
Payable for securities purchased ......................    1,305,239          142,121                --                --
Dividend payable to shareholders ......................        2,790            1,105             7,237             7,707
Shareholder redemptions payable .......................           --               --                --            25,000
Accrued expenses ......................................          747              100                93               201
                                                         -----------      -----------       -----------       -----------
TOTAL LIABILITIES .....................................    1,308,776          143,326             7,330            32,908
                                                         -----------      -----------       -----------       -----------
NET ASSETS ............................................  $68,676,428      $36,227,533       $27,037,268       $40,738,822
                                                         ===========      ===========       ===========       ===========
SHARES OUTSTANDING (Note 4) ...........................    3,993,684        3,387,228         2,889,980         3,900,931
                                                         ===========      ===========       ===========       ===========
NET ASSET VALUE PER SHARE .............................       $17.20           $10.70             $9.36            $10.44
                                                              ======           ======             =====            ======
</TABLE>

   The accompanying notes are an integral part of these financial statements.


                                       77
<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                             STATEMENT OF OPERATIONS
               For the Six Months Ended June 30, 2000 (Unaudited)

<TABLE>
<CAPTION>
                                                      All America     Equity Index        Bond       Money Market
                                                          Fund             Fund           Fund           Fund
                                                      ------------    -------------    -----------   -------------
<S>                                                   <C>             <C>             <C>             <C>
INVESTMENT INCOME (Note 1):
   Dividends ......................................   $    348,603    $    177,970    $         --    $         --
   Interest .......................................        195,700          36,430       1,072,286       1,049,450
                                                      ------------    ------------    ------------    ------------
 Total Investment Income ..........................        544,303         214,400       1,072,286       1,049,450
                                                      ------------    ------------    ------------    ------------
Expenses (Note 2):
   Investment management fees .....................        198,567          20,544          60,338          34,362
   Directors' (independent) fees and expenses .....         16,709          16,708          16,708          16,709
   Custodian expenses .............................         38,686          22,108           2,024           2,356
   Accounting expenses ............................         15,000          11,000          15,000          15,000
   Transfer agent fees ............................         17,044          12,680          15,967          18,411
   Registration fees and expenses .................         17,545          14,758          14,312          10,978
   Audit ..........................................          6,075           2,700           2,025           2,700
   Printing .......................................          6,515           2,875           2,425           2,625
   Other ..........................................          3,505           1,135           1,250           1,305
                                                      ------------    ------------    ------------    ------------
Total Expenses before reimbursement ...............        319,646         104,508         130,049         104,446
Expense reimbursement .............................           (448)        (51,093)        (36,190)        (35,721)
                                                      ------------    ------------    ------------    ------------
Net Expenses ......................................        319,198          53,415          93,859          68,725
                                                      ------------    ------------    ------------    ------------
NET INVESTMENT INCOME .............................        225,105         160,985         978,427         980,725
                                                      ------------    ------------    ------------    ------------
NET REALIZED AND UNREALIZED GAIN (LOSS)
   ON INVESTMENTS (Note 1):
Net realized gain (loss) from security transactions     15,141,754         324,699          (5,428)           (234

Net unrealized appreciation (depreciation)
   of investments .................................    (12,068,028)       (230,234)       (351,288)             50
                                                      ------------    ------------    ------------    ------------
NET REALIZED AND UNREALIZED GAIN (LOSS)
   ON INVESTMENTS .................................      3,073,726          94,465        (356,716)           (184)
                                                      ------------    ------------    ------------    ------------
NET INCREASE IN NET ASSETS RESULTING
   FROM OPERATIONS ................................   $  3,298,831    $    255,450    $    621,711    $    980,541
                                                      ============    ============    ============    ============
</TABLE>

   The accompanying notes are an integral part of these financial statements.


                                       78
<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                       STATEMENTS OF CHANGES IN NET ASSETS

<TABLE>
<CAPTION>
                                                               All America Fund                  Equity Index Fund
                                                       -------------------------------   -------------------------------
                                                         For the Six     For the Year       For the Six     For the Year
                                                        Months Ended        Ended          Months Ended        Ended
                                                        June 30, 2000    December 31,      June 30, 2000    December 31,
                                                         (Unaudited)         1999           (Unaudited)        1999(a)
                                                       -------------     -------------    --------------    ------------
<S>                                                     <C>              <C>                <C>               <C>
FROM OPERATIONS:
   Net investment income .............................  $    225,105     $    321,561       $   160,985       $   210,780
   Net realized gain (loss) on investments ...........    15,141,754        9,735,794           324,699           194,402
   Net unrealized appreciation (depreciation)
     of investments ..................................   (12,068,028)       4,620,245          (230,234)        2,022,444
                                                        ------------     ------------       -----------       -----------
NET INCREASE (DECREASE) IN NET ASSETS
  RESULTING FROM OPERATIONS ..........................     3,298,831       14,677,600           255,450         2,427,626
                                                        ------------     ------------       -----------       -----------
Dividend Distributions (Note 6):
   From net investment income ........................      (212,540)        (313,199)         (152,637)         (206,332)
   From capital gains ................................            --       (9,376,382)               --           (54,088)
                                                        ------------     ------------       -----------       -----------
Total Distributions ..................................      (212,540)      (9,689,581)         (152,637)         (260,420)
                                                        ------------     ------------       -----------       -----------
CAPITAL SHARE TRANSACTIONS (Note 4):
   Net Proceeds from sale of shares ..................    19,420,718        5,281,443         7,113,109        27,076,821
   Dividend reinvestments ............................       209,750        9,579,059           151,532           259,510
   Cost of shares redeemed ...........................   (26,406,332)     (18,282,044)         (618,458)          (25,000)
                                                        ------------     ------------       -----------       -----------
NET INCREASE (DECREASE) IN NET ASSETS
  FROM CAPITAL SHARE TRANSACTIONS ....................    (6,775,864)      (3,421,542)        6,646,183        27,311,331
                                                        ------------     ------------       -----------       -----------
NET INCREASE (DECREASE) IN NET ASSETS ................    (3,689,573)       1,566,477         6,748,996        29,478,537
NET ASSETS, BEGINNING OF PERIOD/YEAR .................    72,366,001       70,799,524        29,478,537                --
                                                        ------------     ------------       -----------       -----------
NET ASSETS, END OF PERIOD/YEAR .......................  $ 68,676,428     $ 72,366,001       $36,227,533       $29,478,537
                                                        ============     ============       ===========       ===========
COMPONENTS OF NET ASSETS:
   Paid-in capital ...................................  $ 34,898,869     $ 41,674,733       $33,957,514       $27,311,331
   Accumulated undistributed net investment
     income ..........................................        14,275            1,710            12,796             4,448
   Accumulated undistributed net realized
     gain(loss) on investments .......................    16,294,270        1,152,516           465,013           140,314
   Unrealized appreciation (depreciation)
     of investments ..................................    17,469,014       29,537,042         1,792,210         2,022,444
                                                        ------------     ------------       -----------       -----------
NET ASSETS, END OF PERIOD/YEAR .......................  $ 68,676,428     $ 72,366,001       $36,227,533       $29,478,537
                                                        ============     ============       ===========       ===========
</TABLE>

-------------
(a) Commenced operations May 3, 1999.

   The accompanying notes are an integral part of these financial statements.


                                       79
<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                       STATEMENTS OF CHANGES IN NET ASSETS
<TABLE>
<CAPTION>

                                                                   Bond Fund                     Money Market Fund
                                                        ------------------------------     ------------------------------
                                                          For the Six     For the Year      For the Six     For the Year
                                                         Months Ended        Ended         Months Ended        Ended
                                                         June 30, 2000    December 31,     June 30, 2000    December 31,
                                                          (Unaudited)         1999          (Unaudited)         1999
                                                        --------------   -------------     -------------    -------------
<S>                                                       <C>             <C>                 <C>              <C>
FROM OPERATIONS:
   Net investment income .............................    $  978,427      $ 1,681,213      $    980,725       $   805,566
   Net realized gain (loss) on investments ...........        (5,428)         (77,457)             (234)              (43)
   Net unrealized appreciation (depreciation)
     of investments ..................................      (351,288)      (2,560,834)               50               (50)
                                                         -----------      -----------      ------------       -----------
NET INCREASE (DECREASE) IN NET ASSETS
  RESULTING FROM OPERATIONS ..........................       621,711         (957,078)          980,541           805,473
                                                         -----------      -----------      ------------       -----------
Dividend Distributions (Note 6):
   From net investment income ........................      (884,808)      (1,688,057)         (931,772)         (800,206)
   From capital gains ................................            --          (16,659)               --                --
                                                         -----------      -----------      ------------       -----------
Total Distributions ..................................      (884,808)      (1,704,716)         (931,772)         (800,206)
                                                         -----------      -----------      ------------       -----------
CAPITAL SHARE TRANSACTIONS (Note 4):
   Net Proceeds from sale of shares ..................       480,958        5,911,602        19,618,275        29,396,830
   Dividend reinvestments ............................       877,571        1,690,023           927,442           785,550
   Cost of shares redeemed ...........................    (2,779,448)      (1,453,099)      (10,027,390)       (6,528,017)
                                                         -----------      -----------      ------------       -----------
NET INCREASE (DECREASE) IN NET ASSETS
  FROM CAPITAL SHARE TRANSACTIONS ....................    (1,420,919)       6,148,526        10,518,327        23,654,363
                                                         -----------      -----------      ------------       -----------
NET INCREASE (DECREASE) IN NET ASSETS ................    (1,684,016)       3,486,732        10,567,096        23,659,630
NET ASSETS, BEGINNING OF PERIOD/YEAR .................    28,721,284       25,234,552        30,171,726         6,512,096
                                                         -----------      -----------      ------------       -----------
NET ASSETS, END OF PERIOD/YEAR .......................   $27,037,268      $28,721,284      $ 40,738,822       $30,171,726
                                                         ===========      ===========      ============       ===========
COMPONENTS OF NET ASSETS:
   Paid-in capital ...................................   $29,178,630      $30,599,549      $ 40,684,393       $30,166,066
   Accumulated undistributed net investment
     income ..........................................        80,244          (13,375)           54,894             5,941
   Accumulated undistributed net realized
     gain(loss) on investments .......................      (291,710)        (286,283)             (465)             (231)
   Unrealized appreciation (depreciation) of
     investments .....................................    (1,929,896)      (1,578,607)               --               (50)
                                                         -----------      -----------      ------------       -----------
 NET ASSETS, END OF PERIOD/YEAR ......................   $27,037,268      $28,721,284      $ 40,738,822       $30,171,726
                                                         ===========      ===========      ============       ===========
</TABLE>

   The accompanying notes are an integral part of these financial statements.


                                       80
<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.

                              FINANCIAL HIGHLIGHTS

<TABLE>
<CAPTION>
                                                              All America Fund                           Equity Index Fund
                                               -----------------------------------------------       -------------------------
                                                Six Months                                            Six Months
                                                  Ended                                                 Ended         Year
                                                 June 30,         Years Ended December 31,             June 30,      Ended
SELECTED PER SHARE AND                            2000      ---------------------------------           2000      December 31,
SUPPLEMENTARY DATA:                            (Unaudited)   1999     1998     1997    1996(e)       (Unaudited)     1999(d)
-------------------                            -----------   ----     ----     ----    -------       -----------  ------------
<S>                                               <C>       <C>      <C>      <C>      <C>             <C>           <C>
NET ASSET VALUE, BEGINNING OF PERIOD/YEAR .....   $16.47    $15.08   $12.65   $10.98   $10.00          $10.80        $10.00
                                                  ------    ------   ------   ------   ------          ------        ------
Income from investment operations:
Net investment income .........................     0.05      0.09     0.07     0.08     0.06            0.05          0.08
Net gains or losses on securities -- realized
   and unrealized .............................     0.73      3.81     2.57     2.77     0.98           (0.10)         0.82
                                                  ------    ------   ------   ------   ------          ------        ------
TOTAL FROM INVESTMENT OPERATIONS ..............     0.78      3.90     2.64     2.85     1.04           (0.05)         0.90
                                                  ------    ------   ------   ------   ------          ------        ------
Less dividend distributions:
From net investment income ....................    (0.05)    (0.08)   (0.08)   (0.08)   (0.06)          (0.05)        (0.08)
From capital gains ............................       --     (2.43)   (0.13)   (1.10)      --              --         (0.02)
                                                  ------    ------   ------   ------   ------          ------        ------
TOTAL DISTRIBUTIONS ...........................    (0.05)    (2.51)   (0.21)   (1.18)   (0.06)          (0.05)        (0.10)
                                                  ------    ------   ------   ------   ------          ------        ------
NET ASSET VALUE, END OF PERIOD/YEAR ...........   $17.20    $16.47   $15.08   $12.65   $10.98          $10.70        $10.80
                                                  ======    ======   ======   ======   ======          ======        ======
Total return (%) (b) ..........................      4.7      26.0     21.0     26.0     10.4            (0.5)          9.0
Net assets, end of year ($ millions) ..........     68.7      72.4     70.8     56.7     55.5            36.2          29.5
Ratio of net investment income to average net
   assets (%) .................................     0.57(a)   0.51     0.55    0.59      0.95(a)         0.98(a)       1.22(a)
Ratio of expenses to average net assets (%). ..     0.81(a)   0.85     0.84     0.84     0.87(a)         0.64(a)       0.63(a)
Ratio of expenses to average net assets after
  expense reimbursement (%) .....................   0.81(a)   0.84     0.82     0.81     0.85(a)         0.33(a)       0.32(a)
Portfolio turnover rate (%) (c) ...............    46.10     34.89    41.25    35.96     9.33            1.53          5.67
</TABLE>


<TABLE>
<CAPTION>
                                                                  Bond Fund
                                                ---------------------------------------------
                                                Six Months
                                                   Ended
                                                  June 30,        Years Ended December 31,
SELECTED PER SHARE AND                             2000      ---------------------------------
SUPPLEMENTARY DATA:                             (Unaudited)  1999     1998     1997    1996(e)
-------------------                             -----------  ----     ----     ----    -------
<S>                                               <C>       <C>     <C>      <C>       <C>
NET ASSET VALUE, BEGINNING OF PERIOD/YEAR .....   $ 9.45    $10.41  $10.41   $10.13    $10.01
                                                  ------    ------  ------   ------    ------
Income from investment operations:
Net investment income .........................     0.36      0.60    0.61     0.59      0.38
Net gains or losses on securities -- realized
    and unrealized ............................    (0.13)    (0.87)   0.24     0.29      0.12
                                                  ------    ------  ------   ------    ------
TOTAL FROM INVESTMENT OPERATIONS ..............     0.23     (0.27)   0.85     0.88      0.50
                                                  ------    ------  ------   ------    ------
Less dividend distributions:
From net investment income ....................    (0.32)    (0.60)  (0.62)   (0.59)    (0.38)
From capital gains ............................       --     (0.09)  (0.23)   (0.01)       --
                                                  ------    ------  ------   ------    ------
TOTAL DISTRIBUTIONS ...........................    (0.32)    (0.69)  (0.85)   (0.60)    (0.38)
                                                  ------    ------  ------   ------    ------
NET ASSET VALUE, END OF PERIOD/YEAR ...........   $ 9.36    $ 9.45  $10.41   $10.41    $10.13
                                                  ======    ======  ======   ======    ======
Total return (%) (b) ..........................      2.4      (3.5)    8.3      8.9       5.0
Net assets, end of year ($ millions) ..........     27.0      28.7    25.2     22.1      21.0
Ratio of net investment income to average net
   assets (%) .................................     7.32(a)   6.23    5.84     5.69      5.63(a)
Ratio of expenses to average net assets (%). ..     0.97(a)   0.93    0.97     1.00      0.90(a)
Ratio of expenses to average net assets after
  expense reimbursement (%) .....................   0.70(a)   0.70    0.70     0.70      0.70(a)
Portfolio turnover rate (%) (c) ...............    18.29     10.07   33.32    56.18     17.85
</TABLE>
----------
(a)   Annualized.
(b)   Total return  would have been lower had certain  expenses not been reduced
      through expense reimbursement (Note 2).
(c)   Portfolio turnover rate excludes all short-term securities.
(d)   Commenced operations May 3, 1999.
(e)   Commenced  operations May 1, 1996.

   The accompanying notes are an integral part of these financial statements.


                                       81
<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.

                        FINANCIAL HIGHLIGHTS (Continued)

<TABLE>
<CAPTION>
                                                              Money Market Fund
                                                ----------------------------------------------
                                                Six Months
                                                   Ended
                                                  June 30,         Years Ended December 31,
SELECTED PER SHARE AND                             2000         ------------------------------
SUPPLEMENTARY DATA:                             (Unaudited)     1999        1998       1997(d)
-------------------                             -----------     ----        ----       -------
<S>                                               <C>          <C>         <C>         <C>
NET ASSET VALUE, BEGINNING OF PERIOD/YEAR .....   $10.39       $10.23      $10.15      $10.00
                                                  ------       ------      ------      ------
Income from investment operations:
Net investment income .........................     0.29         0.50        0.52        0.35
Net gains or losses on securities -- realized
   and unrealized .............................       --           --          --          --
                                                  ------       ------      ------      ------
TOTAL FROM INVESTMENT OPERATIONS ..............     0.29         0.50        0.52        0.35
                                                  ------       ------      ------      ------
Less dividend distributions:
From net investment income ....................    (0.24)       (0.34)      (0.44)      (0.20)
From capital gains ............................       --           --          --          --
                                                  ------       ------      ------      ------
TOTAL DISTRIBUTIONS ...........................    (0.24)       (0.34)      (0.44)      (0.20)
                                                  ------       ------      ------      ------
NET ASSET VALUE, END OF PERIOD/YEAR ...........   $10.44       $10.39      $10.23      $10.15
                                                  ======       ======      ======      ======
Total return (%) (b) ..........................      2.9          4.9         5.3         3.5
Net assets, end of year ($ millions) ..........     40.7         30.2         6.5        7.52
Ratio of net investment income to average net
   assets (%) .................................     5.72(a)      4.86        5.14        5.17(a)
Ratio of expenses to average net assets (%). ..     0.61(a)      1.02        3.21        2.47(a)
Ratio of expenses to average net assets after
  expense reimbursement (%) .....................   0.40(a)      0.40        0.40        0.40 (a)
Portfolio turnover rate (%) (c) ...............      N/A          N/A         N/A         N/A
</TABLE>
----------
(a)   Annualized.
(b)   Total return  would have been lower had certain  expenses not been reduced
      through expense reimbursement (Note 2)
(c)   Portfolio turnover rate excludes all short-term securities.
(d)   Commenced operations May 1, 1997.
N/A = Not Applicable.

   The accompanying notes are an integral part of these financial statements.


                                       82
<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                  NOTES TO FINANCIAL STATEMENTS -- (Unaudited)

1. SIGNIFICANT ACCOUNTING POLICIES AND ORGANIZATION

     Mutual of America  Institutional Funds, Inc. (the "Investment Company") was
incorporated  on October 27, 1994 under the laws of Maryland  and is  registered
under the Investment Company Act of 1940 as a diversified,  open-end  management
investment company (a mutual fund) currently issuing four series of common stock
representing  shares of the All America Fund,  Equity Index Fund, Bond Fund, and
Money Market Fund.  Each fund has its own  investment  objective  and  policies.
Shares of the funds of the  Investment  Company are  offered on a no-load  basis
through its distributor,  Mutual of America Securities Corporation, a registered
broker-dealer and affiliate of the Investment  Company's  investment  management
adviser, Mutual of America Capital Management Corporation (the "Adviser").

     The Investment  Company is designed  primarily as an investment vehicle for
endowments, foundations, corporations,  municipalities and other public entities
and other institutional investors.

     The All America Fund and Bond Fund commenced operations on May 1, 1996. The
Money Market Fund  commenced  operations  on May 1, 1997,  and, the Equity Index
Fund commenced operations onMay 3, 1999.

     The following is a summary of the  significant  accounting  policies of the
Investment Company:

     Security Valuation--Investment securities are valued as follows:

     Equity  securities  are  valued at the last  sales  price on the  principal
exchange on which the  security is traded.  If there is no trading  volume for a
particular  valuation day, the last bid price is used. For any equity securities
traded in the  over-the-counter  market, the security is valued at the last sale
price, or if no sale, at the latest bid price available.

     Short-term  securities  with a  maturity  of 60 days or less are  valued at
amortized cost, which approximates market value for such securities.  Short-term
debt securities maturing in excess of 60 days are stated at market value.

     Debt  securities  are valued at a composite  fair market  value  "evaluated
bid," which may be the last sale price.  Securities for which market  quotations
are not readily  available  will be valued at fair value as  determined  in good
faith by the  Adviser  under  the  direction  of the Board of  Directors  of the
Investment Company.

     Security  Transactions--Security  transactions  are  recorded  on the trade
date.  Realized gain and loss on the sale of short and long-term debt securities
is computed on the basis of amortized  cost at the time of sale.  Realized  gain
and loss on the sale of common  stock is based on the  identified  cost basis of
the security determined on a first-in, first-out ("FIFO") basis.

     The All  America  Fund and the Equity  Index Fund each  maintain an indexed
assets  portfolio.  In order to remain more fully invested in the equity markets
while  minimizing  its  transaction  costs,  the funds may purchase  stock index
futures contracts. Initial cash margin deposits (represented by cash or Treasury
bills) are made upon entering  into futures  contracts.  (This  initial  margin,
maintained in a segregated account, is equal to approximately 5% of the contract
amount, and does not involve the borrowing of funds to finance the transaction).
During the period the futures  contract is outstanding,  changes in the value of
the contract are recognized as unrealized gains or losses by "marking-to-market"
on a daily basis to reflect the market  value of the contract at the end of each
trading day. Futures  contracts are valued at the settlement  price  established
each day by the exchange on which  traded.  Depending  upon  whether  unrealized
gains or losses are incurred,  variation  margin  payments are received or made.
When the contract is closed,  a realized gain or loss from futures  transactions
is recorded,  equal to the net variation margin received or paid over the period
of the contract.

     Investment Income--Interest income is accrued as earned. Dividend income is
recorded on the ex-dividend date.  Foreign source tax withheld from dividends is
recorded as a reduction from dividend income.  Should reclamation succeed,  such
amounts are recorded as income upon collection.

     Federal Income  Taxes--The  Investment  Company  intends to comply with the
requirements  of the Internal  Revenue Code  applicable to regulated  investment
companies  and  to  distribute  substantially  all  of  its  taxable  income  to
shareholders. Therefore, no federal income tax provision is required.


                                       83
<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
            NOTES TO FINANCIAL STATEMENTS -- (Unaudited) (Continued)

2. EXPENSES AND OTHER TRANSACTIONS WITH AFFILIATES

     The Investment  Company has entered into an Investment  Advisory  agreement
with the Adviser. For providing investment management services to the Investment
Company,  each fund accrues a fee, calculated as a daily charge, at annual rates
of .50%,  .125%,  .45%,  and .20% of the  value  of the net  assets  for the All
America,  Equity  Index,  Bond,  and Money  Market  funds,  respectively.  Under
Sub-Advisory  Agreements  for the All America  Fund,  the Adviser has  delegated
investment advisory  responsibilities  to subadvisers  responsible for providing
management  services  for a portion of the fund's  assets.  The Adviser (not the
fund)  is  responsible  for   compensation   payable  under  such   Sub-Advisory
Agreements.

     Each of the funds of the  Investment  Company is charged for those expenses
which can be directly attributed to a fund's operation. Expenses which cannot be
so  attributed  are  generally  allocated  among the funds based on relative net
assets.

     The Adviser  contractually  limits the  expenses  of each fund,  other than
brokers'   commissions,   transfer   taxes  and  fees   relating  to   portfolio
transactions,  investment management expenses and extraordinary  expenses, to an
annual rate of .35%, .20%, .25%, and .20%, of the value of the net assets of the
All America, Equity Index, Bond, and Money Market funds,  respectively.  Accrual
of these other  operating  expenses  is charged  daily  against  each fund's net
assets.  Settlement  of fees  accrued  (both  investment  management  and  other
operating expenses) is paid by each fund to the Adviser on or about month-end.

     The  annual  rates of  operating  expenses  charged  daily to each fund are
subject to periodic  adjustments  so as to maintain as close a  relationship  as
possible  between the  established  rate  (charged  daily) and the fund's actual
expenses, but not to exceed the respective rates under the Adviser's contractual
expense limitation agreement.

     The  Adviser's  contractual  agreement to limit each fund's total  expenses
(excluding   brokerage   commissions,   transfer  taxes/fees  and  extraordinary
expenses) to annual rates of .85%,  .325%,  .70%,  and .40% of the net assets of
the All America, Equity Index, Bond and Money Market funds, respectively,  is in
effect through 2000 and continues in effect  thereafter  unless cancelled by the
Fund or the Adviser in accordance with the agreement.

     The  Investment  Company has an Investment  Accounting  Agreement  with the
Adviser,  pursuant  to which  the  Adviser  has  agreed  to serve as  investment
accounting and recordkeeping  agent for the funds and to calculate the net asset
values of the funds.  The  compensation  paid by the funds for these services is
subject to the expense reimbursement agreement of the Adviser described above.

     A  subadviser  placed a  portion  of its  portfolio  transactions  with its
affiliated  broker-dealer;  such  commissions  amounted to $4,278 or 5.5% of the
Fund's  total  commissions  and  represented  4.0% of the  aggregate  amount  of
commissionable transactions.

3. PURCHASES AND SALES

     The cost of investment  purchases  and proceeds from sales of  investments,
excluding  short-term  investments and U.S. Government  securities,  for the six
months ended June 30, 2000 was as follows:

<TABLE>
<CAPTION>
                                                          All America   Equity Index     Bond
                                                              Fund          Fund         Fund
                                                          -----------    -----------  ----------
<S>                                                       <C>           <C>           <C>
Cost of investment purchases ..........................   $44,256,340   $ 8,550,173   $1,419,511
                                                          ===========   ===========   ==========
Proceeds from sales of investments ....................   $34,198,819   $   477,339   $       --
                                                          ===========   ===========   ==========
Thecost of  investment  purchases  and  proceeds
  from sales of U.S.  Government (excluding short-term)
  securities was as follows:
      Cost of investment purchases ....................   $        --   $        --   $3,239,765
                                                          ===========   ===========   ==========
   Proceeds from sales of investments .................   $        --   $        --   $4,816,564
                                                          ===========   ===========   ==========
</TABLE>


                                       84
<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
            NOTES TO FINANCIAL STATEMENTS -- (Unaudited) (Continued)

3. PURCHASES AND SALES (CONTINUED)

      For the Money Market Fund, the cost of short-term securities purchases was
$201,701,659; net proceeds from sales and redemptions was $192,194,990.

      At  June  30,  2000  the net  unrealized  appreciation  (depreciation)  of
investments  based on cost, which was  substantially the same for Federal income
tax purposes, was as follows:

<TABLE>
<CAPTION>
                                                     All America   Equity Index       Bond      Money Market
                                                         Fund          Fund           Fund          Fund
                                                     ------------   -----------   ------------  -------------
<S>                                                  <C>             <C>            <C>              <C>
   Unrealized appreciation ......................... $20,246,660     $5,714,116     $ 343,643        $--
   Unrealized (depreciation) .......................  (2,777,646)    (3,921,906)   (2,273,539)        --
                                                     -----------     ----------   -----------        ---
   Net unrealized appreciation (depreciation) ...... $17,469,014     $1,792,210   $(1,929,896)        --
                                                     ===========     ==========   ===========        ===
</TABLE>

4. CAPITAL SHARE ACTIVITY AND AFFILIATED OWNERSHIP

     At June 30, 2000 one billion shares of common stock has been authorized for
the Investment  Company.  The Board of Directors has allocated 25 million shares
to the All America Fund,  and, 15 million shares each to the Equity Index,  Bond
and Money Market Funds.

     Transactions  in shares  during the six months ending June 30, 2000 were as
follows:

<TABLE>
<CAPTION>
                                                     All America   Equity Index      Bond      Money Market
                                                         Fund          Fund          Fund          Fund
                                                     ------------   -----------  ------------  -------------
<S>                                                   <C>              <C>            <C>         <C>
   Shares issued ...................................  1,180,412        699,906        50,070      1,857,685
   Shares issued as reinvestment of dividends ......     12,198         14,168        93,803         88,805
   Shares redeemed ................................. (1,593,116)(1)    (57,231)     (294,352)      (949,418)
                                                     ----------        -------       -------      ---------
   Net increase (decrease) .........................   (400,506)       656,843      (150,479)       997,072
                                                     ==========        =======       =======      =========
</TABLE>

     As at June 30,  2000,  Mutual Of America  Life  Insurance  Company  and its
subsidiaries  (affiliates  of the  Adviser)  were  shareholders  of each  fund's
outstanding shares as follows:

                All America Fund ............................   57%
                Equity Index Fund ...........................   75%
                Bond Fund ...................................   86%
                Money Market Fund ...........................    4%

5. FUND OWNERSHIP

     In addition to the affiliated  ownership as described in footnote #4 above,
other  beneficial  ownerships  (shareholders  owning  more  than 5% of a  Fund's
outstanding shares) was as follows on June 30, 2000:

     All America Fund: two shareholders, each owning 14% and 11%, respectively;

     Equity Index Fund: one shareholder owning 14%;

     Money Market Fund: two shareholders, each owning 15% and 8%, respectively.

6. DIVIDENDS

     On June 30,  2000  dividend  distributions  were  declared  and  paid  from
accumulated  net investment  income to  shareholders of record on June 29, 2000.
Pursuant to shareholders' instructions, substantially all dividend distributions
were immediately reinvested in additional shares of each fund.

<TABLE>
<CAPTION>
                                     All America    Equity Index      Bond      Money Market
                                         Fund           Fund          Fund          Fund
                                     ------------   ------------      -----     ------------
<S>                                    <C>            <C>           <C>            <C>
   Distributions from:
   Net investment income ..........    $212,540       $152,637      $884,808       $931,772
                                       --------       --------      --------       --------
   Dividend amounts per share .....    $.053382       $.045252      $.316435       $.244555
                                       ========       ========      ========       ========
</TABLE>
--------------
(1)   During  May 2000,  Mutual  of  America  Life  Insurance  Company  redeemed
      approximately  1.51  million  shares  realizing  proceeds of $25  million,
      reducing the Fund's net assets by a corresponding amount.


                                       85



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