MUTUAL OF AMERICA INSTITUTIONAL FUNDS INC
485APOS, 2000-06-13
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     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JUNE 13, 2000

                                                       REGISTRATION NO. 33-87874
================================================================================
                      SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                ---------------
                                   FORM N-1A
          REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933            [X]

                        PRE-EFFECTIVE AMENDMENT NO.                          [ ]


                       POST-EFFECTIVE AMENDMENT NO. 9                        [X]


                                     AND/OR
      REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940        [X]


                                AMENDMENT NO. 14


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

                MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
               (EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)

                                320 PARK AVENUE
                           NEW YORK, NEW YORK 10022
        (ADDRESS OF REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)(ZIP CODE)
                                 (212) 224-1939
             (REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE)

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

                        DOLORES J. MORRISSEY, PRESIDENT
                  MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                   320 PARK AVENUE, NEW YORK, NEW YORK 10022
                    (NAME AND ADDRESS OF AGENT FOR SERVICE)

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

                                   COPY TO:

                             STANLEY M. LENKOWICZ
          SENIOR VICE PRESIDENT, DEPUTY GENERAL COUNSEL AND SECRETARY
                  MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                                320 PARK AVENUE
                            NEW YORK, NEW YORK 10022

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

 APPROXIMATE DATE OF PROPOSED PUBLIC OFFERING: As soon as practicable after the
 effective date of the Registration Statement.

               IT IS PROPOSED THAT THIS FILING WILL BECOME EFFECTIVE:

                   [ ] immediately upon filing pursuant to paragraph (b)
                   [ ] on (date) pursuant to paragraph (b) of Rule 485
                   [ ] 60 days after filing pursuant to paragraph (a)(1) of
                       Rule 485
                   [ ] on (date) pursuant to paragraph (a)(1) of Rule 485
                   [ ] 75 days after filing pursuant to paragraph (a)(2)
                   [X] on September 1, 2000 pursuant to paragraph (a)(2) of
                       Rule 485


================================================================================

<PAGE>

                  MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                             CROSS-REFERENCE SHEET

<TABLE>
<CAPTION>
  ITEMS IN
 PART A OF
 FORM N-1A  CAPTION IN FORM N-1A                      CAPTION OR LOCATION IN PROSPECTUS
----------------------------------------------------------------------------------------------------------
     <S>    <C>                                       <C>
      1     Front and Back Cover Pages .............. Front and Back Covers
      2     Risk/Return Summary:
            Investments, Risks, and Performance ..... Summary of How Our Funds Invest
      3     Risk/Return Summary:
            Fee Table ............................... Summary of How Our Funds Invest - Annual Fees and
                                                      Expenses
      4     Investment Objectives, Principal
            Investment Strategies, and Related
            Risks ................................... Details about How Our Funds Invest and Related Risks
      5     Management's Discussion of Fund
            Performance ............................. Not Applicable (Included in Annual Report)
      6     Management, Organization, and
            Capital Structure ....................... Management of the Funds
      7     Shareholder Information ................. Information on Fund Shares
      8     Distribution Agreements ................. Not Applicable
      9     Financial Highlights Information ........ Financial Highlights
</TABLE>


<TABLE>
<CAPTION>
  ITEMS IN
 PART B OF                                             CAPTION OR LOCATION IN
 FORM N-1A  CAPTION IN FORM N-1A                       STATEMENT OF ADDITIONAL INFORMATION
-------------------------------------------------------------------------------------------------------------
  <S>       <C>                                        <C>
  10        Cover Page and Table of Contents ......... Cover
  11        Fund History ............................. Investment Company's Form of Operations
  12        Description of the Fund and Its
            Investments and Risks .................... Investment Strategies and Related Risks; Fundamental
                                                       Investment Restrictions; Description of Corporate Bond
                                                       Ratings; Use of Standard & Poor's Indexes
  13        Management of the Fund ................... Management of the Investment Company
  14        Control Persons and Principal Holders
            of Securities ............................ Investment Company's Form of Operations
  15        Investment Advisory and Other
            Services ................................. Investment Advisory Arrangements; Administrative
                                                       Arrangements; Independent
                                                       Auditors; Custodian
  16        Brokerage Allocation and Other
            Practices ................................ Portfolio Transactions and Brokerage
  17        Capital Stock and Other Securities ....... Investment Company's Form of Operations
  18        Purchase, Redemption, and Pricing of
            Shares ................................... Purchase, Redemption and Pricing of Shares
  19        Taxation of the Fund ..................... Taxation of the Investment Company
  20        Underwriters ............................. Distribution of Fund Services
  21        Calculation of Performance Data .......... Yield and Performance Information
  22        Financial Statements ..................... Financial Statements
</TABLE>


  ITEMS IN
 PART C OF  CAPTION IN FORM N-1A AND IN PART C
 FORM N-1A      OF REGISTRATION STATEMENT
----------------------------------------------
  23        Exhibits
  24        Persons Controlled by or Under
            Common Control with the Fund
  25        Indemnification
  26        Business and Other Connections of
            the Investment Adviser
  27        Principal Underwriters
  28        Location of Accounts and Records
  29        Management Services
  30        Undertakings

<PAGE>

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  due upon 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 ......................................................           2
  Money Market Fund ..............................................           3
  Annual Total Returns............................................           3
  Average Annual Total Returns ...................................           4
  Annual Fees and Expenses .......................................           5
  Comparison With Prior Performance of Similar Funds .............           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 .............................................           9
    Mid-Cap Equity Index Fund ....................................          11
    Aggressive Equity Fund .......................................          12
    Bond Fund ....................................................          12
    Money Market Fund ............................................          13
  Risks of Investing in a Stock Fund .............................          13
  Risks of Investing in a Bond Fund ..............................          14
  Specific Investments or Strategies, and Related Risks ..........          14

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 .....................................          18
  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.

      o     Securities  in the S&P 500 Index  generally  are issued by companies
            with large market capitalizations.

      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 and financial
risk, as defined below.


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 to replicate the
            S&P 500 Index by investing in the 500 common stocks  included in the
            S&P 500 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.

An  investment  in the All America Fund is subject to market risk and  financial
risk, as defined below.  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.

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


Risk Defined for Investing in Equity Securities

      o     Market  Risk  refers  to how much the  value of a  security  changes
            (volatility  of price) when  conditions  in the  securities  markets
            change or the economic environment changes. Stocks of companies with
            smaller market capitalizations  generally have more market risk than
            stocks of  companies  with  larger  market  capitalizations.  Market
            capitalization  refers to the  aggregate  market value of the equity
            securities (stock) that a company has issued.

      o     Financial  (or  credit)  risk refers to the  earning  stability  and
            overall financial soundness of an issuer of an equity security.



                                      -1-
<PAGE>


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

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

      o     The Fund invests  primarily in the 400 common stocks included in the
            S&P MidCap 400 Index.

      o     The  stocks  are  issued  by   companies   with   mid-sized   market
            capitalizations.

An  investment  in the  Mid-Cap  Equity  Index  Fund is  subject  to market  and
financial risk, as defined on page 1.

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

The Fund seeks capital  appreciation by investing  primarily in growth and value
common  stocks.  Many of the stocks  purchased are issued by companies that have
small market capitalizations and are traded over-the-counter.

The Fund uses two different investment styles 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 and financial
risk, as defined on page 1. The Aggressive  Equity Fund has more market risk and
financial risk than our other stock funds, because it generally invests in small
capitalization   growth  and  value   equity   securities   that   often   trade
over-the-counter.


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

The Fund seeks current  income,  with  preservation of  shareholders'  capital a
secondary  objective.  The  Fund's  securities  holdings  will  have an  average
maturity  that  varies  according  to  the  Adviser's  view  of  current  market
conditions.

The Fund invests primarily in publicly-traded, investment grade debt securities.

      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  may  invest  a  significant  portion  of its  assets  in a
            particular  type of debt security,  such as U.S.  Government  agency
            mortgage-backed  securities,  U.S. Treasury securities,  zero coupon
            securities or securities 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, 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 may be subject
to a greater market risk than higher rated debt securities, and below investment
grade  securities  (rated  below BBB) are  subject to greater  market  risk than
investment  grade debt  securities.  Zero coupon  securities may be subject to a
greater  market  risk than  securities  that pay  interest  on a regular  basis.
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  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.


                                      -2-
<PAGE>

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 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 and
financial  risk  (defined  on page 1),  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.


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.

      All America Fund:

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

          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

      Bond Fund:

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

          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


                                      -3-
<PAGE>

      Money Market Fund:

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

          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

      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

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.


                                                              Past      For Life
                      Fund/Comparative Index(es)            One Year    of Fund*
    ============================================================================
    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%
    ============================================================================

  *   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.


                                      -4-
<PAGE>

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 2000 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.

**    The Adviser has  contractually  agreed for 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:


                                  1 Year   3 Years(1)   5 Years(1)   10 Years(1)
                                  ------   ----------   ----------   -----------
      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


      (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.



                                      -5-
<PAGE>

Comparison With Prior Performance of Similar Funds
--------------------------------------------------------------------------------


The investment  policies,  objectives and strategies of the Investment Company's
Funds are substantially  identical to similarly named funds of Mutual of America
Investment  Corporation (called the VP or Variable Products Funds). In addition,
the Adviser and  Subadvisers  for these Variable  Products Funds are the same as
for the corresponding  Investment  Company Fund, and the portfolio  managers are
the same.


Shares of the  Variable  Products  Funds 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 Funds,  based on  information
about the VP Funds that the  Adviser has  provided,  compared to returns for the
Investment  Company's  Funds for the periods  indicated,  other than the Mid-Cap
Equity Index and Aggressive Equity Funds, which began operations on September 1,
2000.  Past  performance  of the Variable  Products  Funds is not  predictive of
future  performance.  Investors should not consider  performance data for the VP
Funds as an indication of the future performance of the Funds offered under this
Prospectus.


           Average Annual Total Returns of the Funds and the VP Funds
                       for Periods ended December 31, 1999

<TABLE>
<CAPTION>

                                                                                           Since Inception of
              Institutional Fund                 One Year    Five Years     Ten Years    Institutional Fund (1)
              ------------------                 --------    ----------     ---------    ----------------------
<S>                                               <C>            <C>           <C>                <C>
 Equity Index ................................     9.0%         N/A            N/A                9.0%
 All America .................................    26.0%         N/A            N/A               22.8%
 Bond ........................................   (3.5)%         N/A            N/A                5.0%
 Money Market (4) ............................     4.9%         N/A            N/A                5.1%
===============================================================================================================

                    VP Fund
                    -------

 VP Equity Index .............................    20.6%         28.2%          N/A               10.7%
 VP All America (2)...........................    25.8%         26.1%          N/A               22.3%
 VP Mid-Cap Equity Index Fund ................    11.8%          N/A           N/A                N/A
 VP Aggressive Equity Fund ...................    43.3%         23.7%          N/A                N/A
 VP Bond (3) .................................   (1.9)%          7.5%          7.6%(3)            5.7%
 VP Money Market (4) .........................     5.1%          5.4%          5.2%               5.3%

</TABLE>

(1)   For comparison purposes,  the average annual total return is given for the
      VP All  America  Fund and VP Bond Fund from May 1, 1996,  for the VP Money
      Market Fund from May 1, 1997, and for the VP Equity Index Fund from May 3,
      1999.

(2)   The VP All America  Fund began  operations  in its current  form on May 2,
      1994. Since then, its investment policies,  objectives and strategies have
      been  substantially  identical  to those of the All America  Fund.  VP All
      America  Fund's  average  annual  total  return for the period May 2, 1994
      through December 31, 1999 was 29.1%.

(3)   The  current  portfolio  manager  of the VP Bond  Fund,  who has  been the
      portfolio manager of the Bond Fund since its inception, became the VP Bond
      Fund's portfolio manager in February 1991.

(4)   For the 7-day period ended  December 28, 1999,  the  Investment  Company's
      Money Market Fund had a current  yield of 5.89% and an effective  yield of
      6.06%, and the Variable  Products Money Market Fund had a current yield of
      5.63%  and an  effective  yield of  5.79%.  The  average  maturity  of the
      portfolio holdings was 22 days for Investment  Company's Money Market Fund
      and 19 days for the Variable Products Money Market Fund.

Results for the Variable Products Funds are different than the results that were
or would have been obtained for the Investment Company Funds.


      o     Use of the Investment Company Funds' expenses for the VP Funds 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  Aggressive  Equity Fund,  .50% for each of
            the VP All  America  Fund  and VP Bond  Fund,  .25% for the VP Money
            Market  Fund and .13%



                                      -6-
<PAGE>


            for each of the VP Equity  Index  Fund and VP Mid-Cap  Equity  Index
            Fund (additional  expenses were paid at the separate account level),
            while the annual total operating  expenses (after  reimbursement) of
            the Equity Index Fund, All America Fund,  Mid-Cap Equity Index Fund,
            Aggressive  Equity  Fund,  Bond  Fund and Money  Market  Fund of the
            Investment  Company were .32%,  .84%,  .33%,  1.10%,  .70% and .40%,
            respectively, of average net assets.

      o     The VP All  America  Fund,  from May 1994  until  June  1995,  had a
            Subadviser  for  approximately  10% of the Fund's  assets  currently
            managed  by the  Adviser  and from May 1994 to  February  2000 had a
            Subadviser  for an  additional  10% of the Fund's  assets  currently
            managed by the Adviser.

      o     At year end  1999,  VP  Equity  Index  Fund had net  assets  of $583
            million,  VP All  America  Fund had net assets of $886  million,  VP
            Mid-Cap  Equity  Index  Fund  had  net  assets  of $34  million,  VP
            Aggressive Equity Fund had net assets of $278 million,  VP Bond Fund
            had net assets of $466  million,  and VP Money  Market  Fund had net
            assets of $74 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 $ billion at June 30, 2000,  including $ 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,  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, Alger
            Management had assets under management of approximately $ billion.

      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 $ billion.



                                      -7-
<PAGE>

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.  He has almost 30 years of experience in selecting
securities for and managing equity portfolios.

David D. Alger and Seilai  Khoo are  primarily  responsible  for the  day-to-day
management of the Alger Management portion of the Fund. Mr. Alger, President and
Chief  Executive  Officer  of  Alger  Management,  has  been  employed  by 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
Alger Management.  Ms. Khoo has been employed by Alger Management since 1989, as
a  senior  research  analyst  until  1995  and as a Senior  Vice  President  and
portfolio manager since 1995.

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.


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 (directly or through an affiliate) currently
intends to maintain an  investment  in the Fund so that the Fund's assets are at
least $25 million at any time.

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.

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


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 "Mid-Cap 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>

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 invested $50
million  in the All  America  Fund  when the Fund  began  operations.  Mutual of
America  (directly  or through an  affiliate)  currently  intends to maintain an
investment in the Fund so that the Fund's assets are at least $25 million at any
time.

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.

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.


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,  at least  65% of the
            assets  in the Fred  Alger  portfolio  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, updated quarterly. During defensive periods,
            Fred Alger may not achieve the investment  objective for its portion
            of the All America Fund.

Fred Alger 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 for the Fred Alger portion of the Fund then  determines  the  individual
stocks  that are  appropriate  for  purchase.  Fred  Alger  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.


                                      -10-
<PAGE>


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.

Active  trading  of the  Active  Assets,  if it  occurs,  will  result in higher
transaction costs and may increase the realized  (taxable) capital gains for the
Fund.


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.

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.



                                      -11-
<PAGE>


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 1% in zero coupon securities,  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 % in zero coupon securities, % in U.S. Treasury
            Securities  and  %  in  U.S.   Government   agency   mortgage-backed
            securities.  At that date, % of the Fund's net assets were  invested
            in obligations  rated AAA, % were invested in corporate  obligations
            rated BBB and % 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 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.


                                      -12-
<PAGE>

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% and %,
            respectively,  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.

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 cap 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.


                                      -13-
<PAGE>

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.

      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     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 principal
investment strategies used by the Funds and additional investment strategies the
Funds may use from time to time.

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.



                                      -14-
<PAGE>

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.

      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.

Zero Coupon Securities and Discount Notes


The Bond Fund, as well as the All America Fund and Aggressive Equity Fund to the
extent they invest 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,  the U.S.
Government or 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.


Risks From Zero Coupon Securities and Discount Notes. 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.

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.


                                      -15-
<PAGE>

American Depository Receipts ("ADRS")


ADRs are  dollar-denominated  receipts that U.S. banks  generally  issue. An ADR
represents the deposit with the bank of a security of a foreign issuer. ADRs are
publicly  traded on  exchanges  or are  traded  over-the-counter  in the  United
States. An ADR has currency risk, because its value is based on the value of the
security issued by a foreign issuer.  The All America Fund and Aggressive Equity
Fund may invest in ADRs.


ADRs are  subject  to many of the  same  risks as  foreign  securities,  such as
possible:

      o     unavailablity of financial information,

      o     changes in currency or exchange rates, and

      o     difficulty by the Adviser or a Subadviser  in assessing  economic or
            political trends in a foreign country.

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 8:00  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:

                                    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.:
                                    $  to the Equity Fund     $  to the All
                                                                   America Fund
                                    $  to Mid-Cap Equity      $  to Aggressive
                                         Index Fund                Equity Fund
                                    $  to the Bond Fund       $  to the Money
                                                                   Market Fund


                                    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.

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.


                                      -18-
<PAGE>


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 8:00 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.

                                    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.


                                      -19-
<PAGE>

                                    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  foward 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.

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.


                                      -20-
<PAGE>

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.

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                Year Ended December 31,
                                                               Ended         --------------------------------------
                                                           June 30, 2000      1999      1998       1997       1996*
                                                           ------------      ------    ------     ------     ------

<S>                                                          <C>             <C>       <C>        <C>        <C>
Net Asset Value, Beginning of Year/Period ............                       $15.08    $12.65     $10.98     $10.00
                                                                             ------    ------     ------     ------

Income From Investment Operations:
  Net Investment Income ..............................                          .09       .07        .08        .06
  Net Gains or Losses on Securities
    (realized and unrealized) ........................                         3.81      2.57       2.77        .98
                                                                             ------    ------     ------     ------

    Total From Investment Operations .................                         3.90      2.64       2.85       1.04
                                                                             ------    ------     ------     ------

Less Dividend Distributions:
  From net investment income .........................                         (.08)     (.08)      (.08)      (.06)
  From capital gains .................................                        (2.43)     (.13)     (1.10)        --
                                                                             ------    ------     ------     ------

    Total Distributions ..............................                        (2.51)     (.21)     (1.18)      (.06)
                                                                             ------    ------     ------     ------

Net Asset Value, End of Year/Period ..................                       $16.47    $15.08     $12.65     $10.98
                                                                             ======    ======     ======     ======

Total Return(a) ......................................                         26.0%     21.0%      26.0%      10.4%

Ratios/Supplemental Data
Net Assets, End of Year/Period ($ millions) ..........                       $ 72.4    $ 70.8     $ 56.7     $ 55.5
Ratio of Net Investment Income to Average Net Assets .                          .51%      .55%       .59%       .95%(b)
Ratio of Expenses to Average Net Assets ..............                          .85%      .84%       .84%       .87%(b)
Ratio of Expenses to Average Net Assets after
  Expense Reimbursement ..............................                          .84%      .82%       .81%       .85%(b)
Portfolio Turnover Rate(c) ...........................                        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        Year Ended
                                                                      June 30, 2000      December 31, 1999*
                                                                     ----------------    -----------------

<S>                                                                      <C>                   <C>
Net Asset Value, Beginning of Year/Period .......................                              $10.00
                                                                                               ------
Income From Investment Operations:
  Net Investment Income .........................................                                 .08
  Net Gains or Losses on Securities (realized and unrealized) ...                                 .82
                                                                                               ------
    Total From Investment Operations ............................                                 .90
                                                                                               ------
Less Dividend Distributions:
  From net investment income ....................................                                (.08)
  From capital gains ............................................                                (.02)
                                                                                               ------
    Total Distributions .........................................                                (.10)
                                                                                               ------
Net Asset Value, End of Year/Period .............................                              $10.80
                                                                                               ------
Total Return(a) .................................................                                 9.0%

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


----------
*     Commenced operations May 3, 1999.

See footnotes on page 24.



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

<TABLE>
<CAPTION>

                                                            Six Months                Year Ended December 31,
                                                               Ended         --------------------------------------
                                                           June 30, 2000      1999      1998       1997       1996*
                                                           ------------      ------    ------     ------     ------

<S>                                                          <C>             <C>       <C>        <C>        <C>
Net Asset Value, Beginning of Year/Period ...............                    $10.41    $10.41     $10.13     $10.01
                                                                             ------    ------     ------     ------

Income From Investment Operations:
  Net Investment Income .................................                       .60       .61        .59        .38
  Net Gains or Losses on Securities
    (realized and unrealized) ...........................                      (.87)      .24        .29        .12
                                                                             ------    ------     ------     ------

    Total From Investment Operations ....................                      (.27)      .85        .88        .50
                                                                             ------    ------     ------     ------

Less Dividend Distributions:
  From net investment income ............................                      (.60)     (.62)      (.59)      (.38)
  From capital gains ....................................                      (.09)     (.23)      (.01)        --
                                                                             ------    ------     ------     ------

    Total Distributions .................................                      (.69)     (.85)      (.60)      (.38)
                                                                             ------    ------     ------     ------

Net Asset Value, End of Year/Period .....................                    $ 9.45    $10.41     $10.41     $10.13
                                                                             ======    ======     ======     ======

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

Ratios/Supplemental Data
Net Assets, End of Year/Period ($ millions) .............                    $ 28.7    $ 25.2     $ 22.1     $ 21.0
Ratio of Net Investment Income to Average Net Assets ....                      6.23%     5.84%      5.69%      5.63%(b)
Ratio of Expenses to Average Net Assets .................                       .93%      .97%      1.00%       .90%(b)
Ratio of Expenses to Average Net Assets After
    Expense Reimbursement ...............................                       .70%      .70%       .70%       .70%(b)
Portfolio Turnover Rate(c) ..............................                     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         Year Ended December 31,
                                                               Ended         ---------------------------
                                                           June 30, 2000      1999      1998       1997*
                                                           ------------      ------    ------     ------
<S>                                                          <C>             <C>       <C>        <C>
Net Asset Value, Beginning of Year/Period ...............                    $10.23    $10.15     $10.00
                                                              ------         ------    ------     ------

Income From Investment Operations:
  Net Investment Income .................................                       .50       .52        .35
  Net Gains or Losses on Securities
    (realized and unrealized) ...........................                        --        --         --
                                                              ------         ------    ------     ------

    Total From Investment Operations ....................                       .50       .52        .35
                                                              ------         ------    ------     ------

Less: Dividend Distributions
    From Net Investment Income ..........................                      (.34)     (.44)      (.20)
                                                              ------         ------    ------     ------

    Total Distributions .................................                      (.34)     (.44)      (.20)
                                                              ------         ------    ------     ------

Net Asset Value, End of Year/Period .....................                    $10.39    $10.23     $10.15
                                                              ======         ======    ======     ======

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

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


                                      -25-
<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 the Investment Company.

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 Mid-Cap 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 $_______________________

All America $______________________________ Bond $______________________________

Money Market $_____________________________ Equity Index $______________________


<PAGE>


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


|_|   Redemption  and exchange  requests may be made by telephone by  Authorized
      Persons  (Item 7 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 6 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. _______________________________________________

Account name and 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  (1) a form of  Certificate  of
Resolutions and Incumbency,  for use by a corporation or other entity that has a
Board of  Directors  or  Board  of  Trustees,  or (2) a form of  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 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.

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 ......................................   13
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 ....................................   28
Distribution of Fund Shares ..............................................   29
Legal Matters ............................................................   29
Independent Auditors .....................................................   29
Custodian ................................................................   29
Use of Standard & Poor's Indexes .........................................   30
Financial Statements .....................................................   30


<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,

      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,

      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, for up to 20% of its assets,

      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,  futures  contracts  and  options on futures  contracts  on
            United States Treasury  securities and Government  National Mortgage
            Association ("Ginnie Mae") securities, 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,  as long as the contracts  are traded on a domestic  exchange.
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).


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.

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),



                                       10
<PAGE>

      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.

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,



                                       11
<PAGE>


      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, which currently restricts 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; 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, which currently restricts 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;

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  assets in the  securities  of issuers in one
      industry,  other than U.S.  Government  Securities,  except that the Money
      Market Fund may invest more than 25% of its total assets in the  financial
      services industry;

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,  which currently limit a Fund's
      borrowing to 33 1/3% of total assets (including the amount borrowed) minus
      liabilities  (other than  borrowings)  and require  the  reduction  of any
      excess borrowing within three business days; or

9.    lend  assets  to  other  persons  (with a  Fund's  entry  into  repurchase
      agreements or the purchase of debt  securities  not being  considered  the
      making of a loan),  except to the extent  permitted  by the 1940 Act,  the
      rules thereunder  and  applicable  SEC guidelines, as amended from time to
      time,  which  currently  limit a Fund's  lending  to 33 1/3% of its  total
      assets, or pursuant to any exemptive relief granted by the SEC.

                       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  and
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);



                                       13
<PAGE>


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 Brooklyn, NY
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,
[to come]                                                           Kane, Saunders & Smart; prior thereto,
New York, NY                                                        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                     Past President, The Drucker Foundation;
[to come]                                                           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.


<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 May 31, 2000,  Mutual of America Life  Insurance  Company  (Mutual of America
Life ) owned % of the All America Fund's shares,  % of the Bond Fund's shares, %
of the Money  Market  Fund's  shares and % 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*

--------------------------------------------------------------------------------
         Fund                     1999              1998              1997
================================================================================
     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
--------------------------------------------------------------------------------

----------
*     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

--------------------------------------------------------------------------------
             Subadviser                          1999        1998        1997
================================================================================
       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
--------------------------------------------------------------------------------

----------
*     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 Mid-Cap 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  $300  million and $5
billion and with an average market value of approximately  $1.5 billion.  Almost
70% of the stocks are listed on the New York Stock  Exchange  and  approximately
30% 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.


                                       27
<PAGE>

                      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 Corporation:

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.

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.


                                       28
<PAGE>

BBB   --    Debt  rated  BB,  B,  CCC  and  CC  is  regarded,   on  balance,  as
B     --    predominantly  speculative with respect to the issuer's  capacity to
CCC   --    pay interest and repay principal in accordance with the terms of the
CC    --    obligation. BB 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 assets.


                                       29
<PAGE>

                        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 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

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

                                                                            Page
                                                                            ----

President's Message .....................................................    31
Portfolio Management Discussions.........................................    32
Portfolio of Investments in Securities:
  All America Fund ......................................................    34
  Equity Index Fund .....................................................    42
  Bond Fund .............................................................    47
  Money Market Fund .....................................................    49
Statement of Assets and Liabilities .....................................    50
Statement of Operations .................................................    51
Statements of Changes in Net Assets .....................................    52
Financial Highlights ....................................................    53
Notes to Financial Statements ...........................................    54
Report of Independent Public Accountants ................................    57

Condensed  financial  statements  of the  Investment  Company for the six months
ended June 30, 2000 are included as follows:

                                   [ to come ]



                                       30
<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.


                                       31
<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.

 [The following table was represented as a line graph in the printed material.]

                          All America Fund     S & P 500 Index
                          ----------------     ---------------
          May-96              10,000                10,000
          Dec-96              11,043                11,515
          Dec-97              13,909                15,356
          Dec-98              16,835                19,744
          Dec-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.


                                       32
<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 was represented as a line graph in the printed material.]

                         Bond Fund    Lehman Brothers Gov't/Corp Bond Index
                         ---------    -------------------------------------
          May-96           10,000                    10,000
          Dec-96           10,501                    10,610
          Dec-97           11,435                    11,646
          Dec-98           12,379                    12,748
          Dec-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.


                                       33
<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


                                                          Shares        Value
                                                          ------     -----------
INDEXED ASSETS (CONTINUED):
COMMON STOCKS (CONTINUED)
  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 statements.


                                       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)
  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

                                                          Shares        Value
                                                          ------     -----------
INDEXED ASSETS (CONTINUED):
COMMON STOCKS (CONTINUED)
  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 statements.


                                       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)
  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

                                                          Shares        Value
                                                          ------     -----------
INDEXED ASSETS (CONTINUED):
COMMON STOCKS (CONTINUED)
  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 statements.


                                       36
<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

                                                          Shares        Value
                                                          ------     -----------
INDEXED ASSETS (CONTINUED):
COMMON STOCKS (CONTINUED)
  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 statements.


                                       37
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                                December 31, 1999

<TABLE>
<CAPTION>
                                                                                          Face
                                                  Rate       Maturity       Amount        Value
                                                 ------      --------      --------    -----------
<S>                                               <C>        <C>           <C>         <C>
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
                                                                                       -----------
</TABLE>

----------
FUTURES CONTRACTS OUTSTANDING AS OF DECEMBER 31, 1999:

<TABLE>
<CAPTION>
                                                        Expiration    Underlying Face    Unrealized
                                                           Date       Amount at Value       Gain
                                                        ----------    ---------------    ----------
<S>                                                     <C>              <C>               <C>
PURCHASED

  3 S&P 500 Stock Index Futures Contracts ...........   March 2000       $1,113,150        $40,088
                                                                         ==========        =======
</TABLE>

      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 statements.


                                       38
<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 (0.8%)
  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

                                                         Shares         Value
                                                         ------      -----------
ACTIVE ASSETS (CONTINUED):
ENERGY (CONTINUED)
  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 statements.


                                       39
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                                December 31, 1999


                                                         Shares         Value
                                                         ------      -----------
ACTIVE ASSETS (CONTINUED):
INDUSTRIAL (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



                                                         Shares         Value
                                                         ------      -----------
ACTIVE ASSETS (CONTINUED):
TECHNOLOGY (CONTINUED)
  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 statements.


                                       40
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (ALL AMERICA FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                                December 31, 1999

<TABLE>
<CAPTION>
                                                                                 Face
                                                          Rate     Maturity     Amount        Value
                                                         ------    --------    --------    -----------
<S>                                                       <C>      <C>         <C>         <C>
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
                                                                                           ===========
</TABLE>

   The accompanying notes are an integral part of these financial statements.


                                       41
<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

                                                         Shares         Value
                                                         ------      -----------
INDEXED ASSETS (Continued):
COMMON STOCKS (CONTINUED)
  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 statements.


                                       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)
  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

                                                         Shares         Value
                                                         ------      -----------
INDEXED ASSETS (Continued):
COMMON STOCKS (CONTINUED)
  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 statements.


                                       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)
  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

                                                         Shares         Value
                                                         ------      -----------
INDEXED ASSETS (Continued):
COMMON STOCKS (CONTINUED)
  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 statements.


                                       44
<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

                                                         Shares         Value
                                                         ------      -----------
INDEXED ASSETS (Continued):
COMMON STOCKS (CONTINUED)
  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 statements.


                                       45
<PAGE>

         MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC. (EQUITY INDEX FUND)
               PORTFOLIO OF INVESTMENTS IN SECURITIES (Continued)
                               December 31, 1999

<TABLE>
<CAPTION>
                                                                                 Face
                                                          Rate     Maturity     Amount        Value
                                                         ------    --------    --------    -----------
<S>                                                       <C>      <C>         <C>         <C>
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
                                                                                           ===========
</TABLE>

----------
FUTURES CONTRACTS OUTSTANDING AS OF DECEMBER 31, 1999:

<TABLE>
<CAPTION>
                                                                 Expiration    Underlying Face    Unrealized
                                                                    Date       Amount at Value       Gain
                                                                 ----------    ---------------    ----------
<S>                                                              <C>             <C>                <C>
PURCHASED
   4 S&P 500 Stock Index Futures Contracts ..................    March 2000      $1,484,200         $48,763
                                                                                 ==========         =======
</TABLE>

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 statements.


                                       46
<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 statements.


                                       47
<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 statements.


                                       48
<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         01/14/00         984,000         981,892
   Allied Signal, Inc. ................................           A1/P1       5.90         01/27/00         720,000         716,916
   American Express Credit Corp. ......................           A1/P1       5.80         01/19/00         720,000         717,894
   Associates Corp. ...................................          A1+/P1       5.92         02/04/00         921,000         915,829
   AT&T Corp. .........................................          A1+/P1       6.01         01/25/00       1,000,000         995,981
   Baltimore Gas & Electric Co. .......................           A1/P1       5.88         01/14/00       1,000,000         997,868
   Bear Stearns Cos., Inc. (The) ......................           A1/P1       5.94         01/10/00       1,000,000         998,493
   Becton Dickinson & Co. .............................           A1/P1       5.30         01/24/00       1,200,000       1,195,934
   BellSouth Telecommunications .......................          A1+/P1       5.05         02/02/00       1,000,000         995,510
   Bemis, Inc. ........................................           A1/P1       6.00         01/18/00         660,000         658,108
   British Telecommunications PLC .....................          A1+/P1       5.85         01/18/00         632,000         630,241
   Carolina Power & Light Corp. .......................           A1/P1       6.18         01/18/00         212,000         211,379
   Carolina Power & Light Corp. .......................           A1/P1       6.15         01/28/00         494,000         491,712
   Central Illinois Lighting Co. ......................           A1+/P       6.40         01/25/00         600,000         597,422
   CIT Group Holdings .................................           A1/P1       5.98         01/04/00         975,000         974,509
   Daimler Chrysler NA Holdings Corp. .................           A1/P1       6.10         01/18/00       1,000,000         997,110
   Ford Motor Credit Corp. ............................           A1/P1       6.26         01/10/00       1,000,000         998,430
   General Electric Capital Corp. .....................          A1+/P1       5.90         01/27/00         570,000         567,560
   General Electric Capital Corp. .....................          A1+/P1       5.98         02/08/00         400,000         397,465
   Great Lakes Chemical Corp. .........................           A1/P1       5.90         01/28/00       1,000,000         995,557
   IBM Credit Corp. ...................................           A1/P1       5.90         01/21/00         500,000         498,353
   Koch Industries, Inc. ..............................          A1+/P1       5.85         01/10/00         630,000         629,072
   Minnesota Mining & Mfg. Co. ........................          A1+/P1       6.05         01/28/00         640,000         637,088
   Motorola Credit Corp. ..............................          A1+/P1       6.50         01/27/00         250,000         248,824
   Motorola Credit Corp. ..............................          A1+/P1       5.60         03/31/00         320,000         315,470
   Nicor, Inc. ........................................           A1/P1       6.00         01/18/00         800,000         797,725
   Northern Illinois Gas Co. ..........................          A1+/P1       5.88         01/21/00       1,035,000       1,031,605
   Panasonic Finance, Inc. ............................          A1+/P1       5.87         02/03/00       1,000,000         994,596
   Pfizer, Inc. .......................................           A1/P1       6.52         01/19/00       1,000,000         996,735
   Pitney Bowes Inc. ..................................          A1+/P1       5.20         01/28/00       1,060,000       1,055,864
   Sony Capital Corp. .................................           A1/P1       6.30         01/26/00       1,105,000       1,100,153
   South Carolina Electric & Gas ......................           A1/P1       6.60         01/31/00         533,000         530,063
   Toyota Credit de Puerto Rico Corp. .................           A1/P1       6.02         02/03/00         795,000         790,595
   Toyota Motor Credit Corp. ..........................          A1+/P1       6.04         01/13/00         428,000         427,135
   UBS Finance (Delw.) Inc. ...........................          A1+/P1       4.00         01/03/00       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 statements.


                                       49
<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 statements.


                                       50
<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.


                                       51
<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.


                                       52
<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.


                                       53
<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 on May 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.


                                       54
<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
                                                          ===========    ===========     ==========
The cost 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>


                                       55
<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).

<TABLE>
<CAPTION>
                                                  All America     Equity Index        Bond        Money Market
                                                      Fund            Fund            Fund            Fund
                                                  ------------    ------------    ------------    ------------
<S>                                                <C>             <C>             <C>             <C>
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
                                                   ==========      ==========      ==========      ==========
</TABLE>

----------
(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.


                                       56
<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


                                       57
<PAGE>

                   MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.

             Distributed by Mutual of America Securities Corporation
           320 Park Avenue New York, New York 10022-6839 800-914-8716

<PAGE>

                            PART C. OTHER INFORMATION

Item 23. Exhibits

      1(a)     Articles  of  Incorporation  of Mutual of  America  Institutional
               Funds, Inc. (the "Fund"), dated October 26, 1995 (6)
      1(b)     Articles Supplementary, dated February 20, 1996 (6)
      1(c)     Articles Supplementary, dated April 8, 1996 (6)
      1(d)     Articles Supplementary, dated December 2, 1996 (6)
      1(e)     Articles Supplementary, dated February 24, 1997 (6)
      1(f)     Articles Supplementary, dated April 6, 1999 (5)

      1(g)     Form Articles Supplementary, dated August 14, 2000

      2        By-Laws of the Fund (6)

      4(a)     Form of  Investment  Advisory  Agreement,  as  amended  effective
               September 1, 2000, between the Fund and Mutual of America Capital
               Management Corporation (the "Adviser")

      4(b)     Form of Subadvisory  Agreement between the Adviser and Fred Alger
               Management, Inc. (2)
      4(c)     Form  of  Subadvisory  Agreement  between  the  Adviser  and  Oak
               Associates, Ltd. (2)
      5        Distribution  Agreement  between  the Fund and  Mutual of America
               Securities Corporation, as Distributor ("Securities Corporation")
               (6)
      7        Custody  Agreement  between the Fund and The Chase Manhattan Bank
               (1)
      8(a)     Form of Transfer  Agency and Service  Agreement  between the Fund
               and State Street Bank and Trust Company (1)
      8(b)     Form of Investment  Accounting Agreement between the Fund and the
               Adviser (3)

      8(c)     Form of Agreement to Pay Operating  Expenses between the Fund and
               the Adviser, as amended effective September 1, 2000
      9(a)     Consent and Opinion of General Counsel (5)
      9(b)     Consent and Opinion of General  Counsel for Mid-Cap  Equity Index
               and Aggressive Equity Funds

      10(a)    Consent of Arthur Andersen llp
      10(b)    Consent of Swidler Berlin Shereff Friedman, LLP
      10(c)    Powers  of  Attorney  of  Ms.  Morrissey  and  Messrs.  Altstadt,
               Kearney, Sharkey and Silber (2)
      10(d)    Power of Attorney of Patrick J. Waide, Jr. (3)
      10(e)    Powers of Attorney of John R. Greed and Stanley Shmishkiss (4)

      16(a)    Code of Ethics of the Fund (7)
      16(b)    Code of Ethics of Securities Corporation (7)
      16(c)    Code of Ethics of the Adviser (7)
      16(d)    Code of Ethics of Fred Alger Management, Inc. (7)
      16(e)    Code of Ethics of Oak Associates, Ltd. (7)
      16(f)    Code of Ethics of Mutual of America Life Insurance Company (7)


----------
(1)   Included in  Pre-Effective  Amendment  No. 3 filed with the  Commission on
      January 29, 1996

(2)   Included in  Pre-Effective  Amendment  No. 4 filed with the  Commission on
      March 15, 1996

(3)   Included in  Post-Effective  Amendment No. 2 filed with the  Commission on
      February 28, 1997

(4)   Included in  Post-Effective  Amendment No. 5 filed with the  Commission on
      February 12, 1999

(5)   Included in  Post-Effective  Amendment No. 6 filed with the  Commission on
      April 15, 1999

(6)   Included in  Post-Effective  Amendment No. 7 filed with the  Commission on
      June 4, 1999


(7)   Included in  Post-Effective  Amendment No. 8 filed with the  Commission on
      April 26, 2000


Item 24. Persons Controlled By or Under Common Control with Registrant

      The Adviser is an indirect  wholly-owned  subsidiary  of Mutual of America
Life Insurance Company (Mutual of America Life). Mutual of America Life is a New
York  mutual  life  insurance  company,  and as such no person has the direct of
indirect  power to control  Mutual of America Life except by virtue of a persons
capacity  as a  director  or  executive  officer.  Each  holder  of an  in-force
insurance  policy or annuity  contract  issued by Mutual of America Life has the
right to vote for the  election of directors of Mutual of America Life at annual
elections and upon other corporate matters where policyholders' votes are taken.
Mutual of America Life directly or indirectly owns the following companies:


                                      C-1
<PAGE>

      Mutual of America  Life  Insurance  Company,  a New York mutual  insurance
company, wholly owns

      o     Mutual of America Corporation, a Delaware corporation, and

      o     Mutual of America Foundation, a New York not-for-profit corporation.

      Mutual of America Corporation wholly owns

      o     The American  Life  Insurance  Company of New York, a New York stock
            corporation,

      o     Mutual of America Securities  Corporation,  a Delaware  corporation,
            and

      o     Mutual of America Capital  Management  Corporation (the Adviser),  a
            Delaware corporation.

      Mutual of America Life  Insurance  Company and The American Life Insurance
Company of New York,  through  their  separate  accounts,  wholly own all of the
shares of Mutual of  America  Investment  Corporation,  a  Maryland  corporation
registered  under the 1940 Act as a management  investment  company whose shares
are offered only to those separate  accounts for funding variable life insurance
and variable annuity products.

      Mutual of America  Life  Insurance  Company  currently  owns a majority of
Registrant's outstanding shares.

Item 25. Indemnification

      Articles of  Incorporation  of the Fund. The Articles of  Incorporation of
the Fund provide in  substance  that no director or officer of the Fund shall be
liable to the Fund or its shareholders for money damages, unless the director or
officer is subject to  liability  by reason of willful  misfeasance,  bad faith,
gross  negligence  or reckless  disregard of duties in the conduct of his or her
office.

      By-Laws  of  the  Fund.   The   By-Laws  of  the  Fund   provide  for  the
indemnification of present and former officers and directors of the Fund against
liability  by reason of service to the Fund,  unless the  officer or director is
subject  to  liability  by reason  of  willful  misfeasance,  bad  faith,  gross
negligence or reckless disregard of the duties involved in the conduct of his or
her office (Disabling Conduct).  No indemnification  shall be made to an officer
or  director  unless  there  has  been a final  adjudication  on the  merits,  a
dismissal of a proceeding for insufficiency of evidence of Disabling Conduct, or
a reasonable determination has been made that no Disabling Conduct occurred. The
Fund may  advance  payment of  expenses  only if the  officer or  director to be
indemnified  undertakes to repay the advance unless  indemnification is made and
if one of the following applies: the officer of director provides a security for
his or her  undertaking,  the Fund is  insured  against  losses  from any lawful
advances,  or a reasonable  determination  has been made that there is reason to
believe the officer or director ultimately will be entitled to indemnification.

      Insurance.  Coverage for officers and director of the Adviser, Distributor
and the Fund is provided under an Investment  Management insurance policy issued
by  American  International  Specialty  Lines  Insurance  Company,  with  excess
coverage by Chubb custom Insurance Company,  to Mutual of America Life Insurance
Company et al. The aggregate limit of liability under the policy per year is $10
million,  with a $200,000  deductible per entity insured and a $1,000 deductible
for individual insureds.

      By-Laws  of  the  Adviser.  The  By-Laws  of  Mutual  of  America  Capital
Management Corporation,  the Fund's Adviser,  provide for the indemnification by
the Corporation of present and former  directors and officers of the Corporation
and of any  organization  for which  service is  rendered  at the request of the
Corporation and permits the advance payment of expenses in certain circumstances
for covered  persons in connection  with suits by third  parties and  derivative
suits.  Each  covered  person  must have acted in good faith and in a manner the
person reasonably  believed to be in or not opposed to the best interests of the
Corporation  and,  with respect to any  criminal  action or  proceeding,  had no
reasonable  cause to believe the conduct was unlawful.  If in connection  with a
derivative  suit a covered  person shall have been  adjudged to be liable to the
Corporation,  indemnification  shall not be made  unless  and only to the extent
that the  Delaware  Court of  Chancery or the court in which such action or suit
was brought shall determine upon application  that,  despite the adjudication of
liability  but in view of all the  circumstances  of the  case,  such  person is
entitled to  indemnity.  Thus,  the officers  and  directors of the fund and the
Adviser are indemnified by the Adviser for their services in connection with the
Fund to the extent set forth in the By-Laws.

      By-Laws of the  Distributor.  The By-laws of Mutual of America  Securities
Corporation, the principal underwriter and distributor for the fund, provide for
the  indemnification  by the  Corporation  of present and former  directors  and
officers  of the  Corporation  and of any  organization  for  which  service  is
rendered at the request of the  Corporation  and permits the advance  payment of
expenses in certain  circumstances  for covered persons in


                                      C-2
<PAGE>

connection with suits by third parties and derivative suits. Each covered person
must have acted in good faith and in a manner the person reasonably  believed to
be in or not opposed to the best interests of the Corporation  and, with respect
to any criminal  action or  proceeding,  had no reasonable  cause to believe the
conduct was unlawful.  If in connection  with a derivative suit a covered person
shall have been adjudged to be liable to the Corporation,  indemnification shall
not be made unless and only to the extent that the Delaware Court of Chancery or
the  court  in which  such  action  or suit was  brought  shall  determine  upon
application  that,  despite the adjudication of liability but in view of all the
circumstances  of the case,  such  person is entitled to  indemnity.  Thus,  the
officers and directors of the Distributor are indemnified by the Distributor for
their  services  in  connection  with the Fund to the  extent  set  forth in the
By-Laws.

      Undertaking.  Insofar as  indemnification  for liability arising under the
Securities Act of 1933 may be permitted to directors,  officers and  controlling
persons of the registrant  pursuant to the foregoing  provisions,  or otherwise,
the  registrant  has been  advised  that in the  opinion of the  Securities  and
Exchange  Commission such  indemnification is against public policy as expressed
in the Act and is,  therefore,  unenforceable.  In the  event  that a claim  for
indemnification  against  such  liabilities  (other  than  the  payment  by  the
registrant of expenses incurred or paid by a director,  officer,  or controlling
person of the  registrant  in the  successful  defense  of any  action,  suit or
proceeding)  is  asserted by such  director,  officer or  controlling  person in
connection with the securities being registered,  the registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit  to a  court  of  appropriate  jurisdiction  the  question  whether  such
indemnification by its it against public policy as expressed in the Act and will
be governed by the final adjudication of such issue.

Item 26. Business and Other Connections of the Investment Adviser

      Mutual of America  Capital  Management  corporation  (the  Adviser) is the
investment  adviser to the Fund and is registered as an investment adviser under
the Investment Advisers Act of 1940. The names, addresses and positions with the
Adviser of each director and officer of the Adviser are set forth below.

<TABLE>
<CAPTION>
                                             Positions                          Principal Occupation
Name                                        With Adviser                        During Past Two Years
----                                  -----------------------                   ---------------------
<S>                                   <C>                              <C>
Thomas J. Moran ...................   Director, Chairman of            President, Chief Executive Officer and
320 Park Avenue                         the Board                        Director, Mutual of America Life
NY, NY 10022

F. Harlan Batrus ..................   Director                         Partner, Lazard Freres
30 Rockefeller Plaza
NY, NY 10020

Robert X. Chandler ................   Director                         Director, Development Office,
Director, Development Office                                             Archdiocese of Boston
Archdiocese of Boston
2121 Commonwealth Ave.
Brighton, MA 02135

Nathaniel A. Davis ................   Director                         Vice President, Network Engineering
17680 Old Meadow Rd.                                                     Operations,
McLean, VA 22102                                                         Nextel Communications

Anthony F. Earley .................   Director                         Chairman, President and Chief
Detroit Edison Company                                                   Operating Officer, Detroit Edison Co.
2000 Second Avenue
Room 2407 WCB
Detroit, MI 48226

William T. Knowles ................   Director                         Consultant
Orr's Island, ME 04066

Walter A. McDougal ................   Director                         Former Chairman and President,
Garden City, NY 11530                                                    Richmond Hill Savings Bank

Peter J. Powers ...................   Director                         President and Chief Executive
1345 Avenue of the Americas                                              Officer, Powers Global Strategies
NY, NY 10105                                                             (Strategic planning and consulting)
</TABLE>


                                      C-3
<PAGE>

<TABLE>
<CAPTION>
                                             Positions                          Principal Occupation
Name                                        With Adviser                        During Past Two Years
----                                  -----------------------                   ---------------------
<S>                                   <C>                              <C>
James E. Quinn ....................   Director                         Vice Chairman, Tiffany & Co.
727 Fifth Avenue
NY, NY 10022

Richard J. Ciecka .................   President and Chief              Vice Chairman of the Board, Mutual
320 Park Avenue                         Financial Officer;               of America Life, until October 1998
NY, NY 10022                            Director

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

Patrick A. Burns ..................   Senior Executive Vice            Senior Executive Vice President and
320 Park Avenue                         President and                    General Counsel of Mutual of
NY, NY 10022                            General Counsel                  America Life and American Life

Amir Lear .........................   Executive Vice                   Senior Vice President, Mutual of
320 Park Avenue                         President and                    America Life, until October 1998
NY, NY 10022                            Assistant to the
                                        President and CEO

Andrew L. Heiskell ................   Executive Vice                   Executive Vice President of the
320 Park Avenue                         President                        Adviser
NY, NY 10022

Thomas Larsen .....................   Executive Vice                   Executive Vice President of the
320 Park Avenue                         President                        Adviser since June 1998;
NY, NY 10022                                                             prior thereto, Senior
                                                                         Vice President, Desai Capital
                                                                         Management

Joseph Brunken ....................   Senior Vice President            Senior Vice President of the Adviser
320 Park Avenue                                                          since November, 1997; prior
NY, NY 10022                                                             thereto, Vice President, Nikko
                                                                         Capital Management (USA), Inc.

Mary E. Canning ...................   Senior Vice President            Senior Vice President of the Adviser
320 Park Avenue                                                          since May 1999; Prior thereto,
NY, NY 10022                                                             Managing Director/Portfolio
                                                                         Manager at Phoenix Duff & Phelps

Susan J. Ferber ...................   Senior Vice President            Senior Vice President of the Adviser
320 Park Avenue                                                          since May 1999; prior thereto,
NY, NY 10022                                                             Vice President of Business
                                                                         Development, Argus Investors'
                                                                         Counsel

Stanley M. Lenkowicz ..............   Senior Vice President,           Senior Vice President and Deputy
320 Park Avenue                         Deputy General                   General Counsel, Mutual of
NY, NY 10022                            Counsel & Secretary              America Life

Nancy McAvey ......................   Senior Vice President            Senior Vice President of the Adviser
320 Park Avenue
NY, NY 10022

Philip McMahon ....................   Senior Vice President            Vice President of the Adviser
320 Park Avenue                                                          until February 2000; prior thereto,
NY, NY 10022                                                             Equity Securities Analyst

John P. Middleton .................   Senior Vice President            Senior Vice President of the Adviser
320 Park Avenue                                                          since May 1999; prior thereto,
NY, NY 10022                                                             Vice President, Raymond James
                                                                         & Associates
</TABLE>


                                      C-4
<PAGE>

<TABLE>
<CAPTION>
                                             Positions                          Principal Occupation
Name                                        With Adviser                        During Past Two Years
----                                  -----------------------                   ---------------------
<S>                                   <C>                              <C>
Paul Travers ......................   Senior Vice President            Senior Vice President of the Adviser
320 Park Avenue
NY, NY 10022

Gary P. Wetterau ..................   Senior Vice President            Vice President of the Adviser
320 Park Avenue
NY, NY 10022

David Wood ........................   Senior Vice President            Senior Vice President of the Adviser
320 Park Avenue
NY, NY 10022

Aline Couture .....................   Vice President                   Vice President of the Adviser
320 Park Avenue
NY, NY 10022

Doris Klug ........................   Vice President                   Vice President of the Adviser
320 Park Avenue
NY, NY 10022

Robert H. Stewart .................   Vice President                   Vice President of the Adviser
320 Park Avenue
NY, NY 10022
</TABLE>

      Each of Oak Associates, Ltd. ("Oak Associates") and Fred Alger Management,
Inc. ("Alger  Management") is a subadviser for a portion of the Active Assets of
the All America  Fund  allocated  to it. Each  subadviser  is  registered  as an
investment  adviser  under  the  Investment  Advisers  Act of 1940.  The  names,
addresses  and  positions of each  director and officer of each  subadviser  are
incorporated  by  reference  to the Form ADV of the  subadviser  filed  with the
Securities and Exchange Commission, as set forth below.

      Oak Associates, Ltd., Form ADV, SEC File No. 801-23632.

      Fred Alger Management, Inc., Form ADV, SEC File No. 801-06709.

Item 27. Principal Underwriters

      (a)  Mutual of  America  Securities  Corporation  (the  "Distributor"),  a
Delaware  corporation,  is the principal  underwriter  and  distributor for Fund
shares.

      (b) The names of the officers and directors of the Distributor,  and their
positions with the Distributor and the Fund, are as follows:

<TABLE>
<CAPTION>
                                             Positions
Name                                        With Adviser                        Positions with the Fund
----                                  -----------------------                   -----------------------
<S>                                   <C>                              <C>
Thomas J. Moran ....................  Chairman of the Board                           --
                                        and Director


Dolores J. Morrissey ...............  President and CEO                President, Chairman and Director

Amir Lear ..........................  Senior Vice President                           --
                                        and CFO

Manfred Altstadt ...................  Senior Executive Vice            Senior Executive Vice President
                                        President, Treasurer             and Treasurer
                                        and Director


Patrick A. Burns ...................  Senior Executive Vice            Senior Executive Vice President
                                        President, General               and General Counsel
                                        Counsel and Director

Salvatore R. Curiale ...............  Senior Executive Vice                           --
                                        President and Director


Stanley M. Lenkowicz ...............  Senior Vice President,           Senior Vice President, Deputy
                                        Secretary and Director           General Counsel and Secretary


Howard Lichtenstein ................  Director                                        --

William S. Conway ..................  Executive Vice President/                       --
                                        Marketing

Paul J. Costagliola ................  Vice President and                              --
                                        Compliance Officer
</TABLE>


                                      C-5
<PAGE>

Item 28. Location of Accounts and Records

      The records  required to be maintained by Section 31(a) of the  Investment
Company Act of 1940 and Rules 31a-3 promulgated  thereunder,  will be maintained
by the Adviser at its offices at 320 Park  Avenue,  New York,  New York 10022 or
with its custodian.

Item 29. Management Services

      Not applicable.

Item 30. Undertakings

      The Fund hereby  undertakes,  if  requested  to do so by the holders of at
least 10% of the Fund's  outstanding  shares,  to call a meeting of shareholders
for the  purpose  of voting  upon the  question  of  removal  of a  director  or
directors and to assist in communications with other shareholders as required by
applicable law and regulations.


                                      C-6
<PAGE>

                                   SIGNATURES


      Pursuant  to the  requirements  of the  Securities  Act of  1933  and  the
Investment   Company  Act  of  1940,   the   registrant  has  duly  caused  this
post-effective amendment to Registration Statement to be signed on its behalf by
the undersigned,  thereunto duly authorized,  in the City of New York, and State
of New York on the 13th day of June, 2000.


                                     MUTUAL OF AMERICA INSTITUTIONAL FUNDS, INC.
                                                     (Registrant)


                                     By:        /s/ DOLORES J. MORRISSEY
                                        ----------------------------------------
                                             (Title: President and Chairman)

      Pursuant  to  the   requirement  of  the  Securities  Act  of  1933,  this
post-effective  amendment to Registration Statement has been signed below by the
following persons in the capacities indicated on June 13, 2000.


               Signatures                                 Title
               ----------                                 -----


        /s/ DOLORES J. MORRISSEY              President, Chairman and Director
----------------------------------------        (Principal Executive Officer)
         (Dolores J. Morrissey)


                    *                         Director
----------------------------------------
           (Kevin M. Kearney)

                    *                         Director
----------------------------------------
            (John T. Sharkey)

                    *                         Director
----------------------------------------
            (John R. Silber)

                    *                         Director
----------------------------------------
          (Stanley Shmishkiss)

                    *                         Director
----------------------------------------
         (Patrick J. Waide, Jr.)

                    *                         Executive Vice President and
----------------------------------------        Chief Financial Officer
            (John R. Greed)                     (Principal Financial and
                                                Accounting Officer)

*By /s/ DOLORES J. MORRISSEY
    ----------------------------------------
    (Dolores J. Morrissey, Attorney-in-fact)


                                      C-7
<PAGE>

                                  EXHIBIT INDEX

 Exhibit
 Number                                                                     Page
--------                                                                    ----


 1(g)     Form of Articles Supplementary, dated August 14, 2000

 4(a)     Form of Investment Advisory Agreement, as amended effective
          September 1, 2000, between the Fund and Mutual of America
          Capital Management Corporation (the "Adviser")

 8(c)     Form of Agreement to Pay Operating Expenses between the Fund
          and the Adviser, as amended effective September 1, 2000

 9(b)     Consent and Opinion of General Counsel for Mid-Cap Equity
          Index and Aggressive Equity Funds

 10(a)    Consent of Arthur Andersen LLP

 10(b)    Consent of Swidler Berlin Shereff Friedman, LLP




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